KR100988576B1 - Medical X-ray City Photographing Device - Google Patents

Abstract

The present invention relates to a medical X-ray city photographing apparatus, wherein the medical X-ray city photographing apparatus has a cylindrical opening in a central portion thereof, and accommodates a test object in the opening to rotate the circumference of the test object, in the gantry. It is horizontally driven to be inserted into the provided opening, and includes a test table for fixing the inspected object and a gantry driving means for driving the gantry, the inside of the gantry facing the X-ray generating unit and the X-ray generating unit for generating X-rays The X-ray generating unit detects the X-rays generated by the X-ray generating unit and passes through the inspected object, and includes an X-ray detecting unit equipped with a large-area digital sensor having a horizontal length and a vertical length of at least 8 inches.

Medical X-ray City Imaging Device, Gantry, X-ray Detector, Large Area Digital Sensor

Description

MEDICAL X-RAY CT IMAGE TAKING APPARATUS}

The present invention relates to a medical X-ray city photographing apparatus, and more particularly, to a medical X-ray city photographing apparatus having a large-area digital sensor in the X-ray detecting unit to acquire a CT image of a subject under a shorter time than before.

In the medical field, a computer tomography (CT) imaging apparatus is a device for projecting an X-ray onto an object at various angles and reconstructing it with a computer to process an image of the inside cross section of the object as an image.

 1 is a conventional medical X-ray CT imaging apparatus. Referring to FIG. 1, the medical X-ray CT imaging apparatus 10 may include an X-ray generator 11, an X-ray detector 12, and a gantry 13. The X-ray generating unit 11 may generate X-rays 14 to transmit the X-rays 14 and the X-ray detecting unit 12 may detect X-rays 14 passing through the X-rays 15. Output as an electrical signal so that the output from the display device as an image.

In addition, the gantry 13 is provided in a donut shape to accommodate the inspected object 15 in the center, and the X-ray generator 11 and the X-ray detector 12 therein, the X-ray generator 11 ), The inspected object 15 and the X-ray detector 12 are provided in a straight line so as to acquire data of the inspected object 15 while rotating 360 ° around the inspected object 15.

However, the conventional medical X-ray CT imaging apparatus 10 acquires data by rotating the gantry 10 more than a few times at high speed in order to acquire cross-sectional images. The reason for this is that as shown in FIG. 1, since the small-area sensor is provided in the X-ray detector 12, the X-ray detector 12 radiates in a fan shape from the X-ray generator 11. ) Could not be detected at one time.

Accordingly, the medical X-ray CT imaging apparatus 10 needs to spend a lot of imaging time in order to obtain a CT image reconstructing a plurality of cross-sectional images, the patient 15 the radiation of harmful to the human body during that time That is, they had to be exposed to X-rays.

The present invention has been invented to solve the above problems, and an object of the present invention is to provide a large-area digital sensor in the X-ray detector to acquire cross-sectional images of an object under various angles in a short time without rotating the gantry several times. The present invention provides a medical X-ray city photographing apparatus.

The present invention for achieving the above object is provided with a cylindrical opening in the center, the gantry rotating the periphery of the inspected object by receiving the inspected object in the opening, horizontally driven to be inserted into the opening provided in the gantry And an inspection table for fixing the inspected object and a gantry driving means for driving the gantry, wherein the gantry has an X-ray generator that generates X-rays and is generated by the X-ray generator at a position opposite to the X-ray generator. X-rays transmitted through the dead body are detected, and the X-ray detection unit is provided with a large-area digital sensor each having a length of at least 8 inches or more.

In an exemplary embodiment, the medical X-ray city imaging apparatus includes the large-area digital sensor on the X-ray detection unit to rotate the gantry once or twice.

In a preferred embodiment, the test table is driven up, down, left or right according to the test subject.

In a preferred embodiment, the length and width of the large area digital sensor are each 8 to 20 inches.

In a preferred embodiment, the large area digital sensor is provided with a photodiode, a sensor panel for detecting visible light, provided on the sensor panel, a scintillator panel for converting X-rays to visible light, the sensor panel and the It is provided between the scintillator panel, the curable sealant provided along the edge of the sensor panel and the scintillator panel, the carbon black plate provided on the scintillator panel and a predetermined position between the scintillator panel and the carbon black plate It comprises a curable sponge provided with one or more than two.

In a preferred embodiment, the sensor panel and the scintillator panel are not bonded with an adhesive other than the curable sealant provided along an edge, and the curable sealant is cured by ultraviolet rays or heat.

In a preferred embodiment, the large-area digital sensor is provided so that the front surface of the sensor panel at an angle with a horizontal plane in space, spraying the adhesive on the front surface of the sensor panel, the sprayed adhesive is the sensor And a large area digital sensor panel manufactured by flowing down from an upper surface of the front panel to a lower surface of the front panel to form an adhesive layer having a predetermined thickness and adhering the scintillator panel to the front surface of the adhesive layer.

In a preferred embodiment, the large-area digital sensor may include forming a dam with a first curable material at an edge of a sensor panel, and dispensing a second curable material into a dam formed on the sensor panel to form an adhesive layer. And mounting the scintillator panel on the adhesive layer formed on the sensor panel and attaching the scintillator panel, and curing the dam and the adhesive layer.

In a preferred embodiment, the first curable material has a higher viscosity than the second curable material.

In a preferred embodiment, the first curable material and the second curable material are thermosetting materials or UV curable materials and are cured by heat or UV.

In a preferred embodiment, the large-area digital sensor is positioned so that one surface of the sensor panel faces downward, preparing a first roller positioned below the sensor panel and partially submerged in a bath containing liquid adhesive. Moving the sensor panel in a horizontal direction and simultaneously rotating the first roller to apply the liquid adhesive layer from one side to the other side of the surface of the sensor panel, the liquid adhesive on one surface of the sensor panel. After the application of the layer is completed, positioning the scintillator panel on one surface of the sensor panel and pressing the second roller from one side to the other side of the scintillator panel to the other surface of the sensor panel and the scintillator And the large area digital sensor panel manufactured by bonding the panels.

In a preferred embodiment, the step of positioning the sensor panel so that the one surface faces downward is a step of vacuum-sucking the other surface of the sensor panel to the support table.

In a preferred embodiment, the large area digital sensor comprises positioning a sensor panel on a first support table, applying an adhesive to the top surface of the sensor panel, and applying a knife bar to the top surface of the sensor panel to which the adhesive is applied. It comprises a large-area digital sensor panel produced by the step of forming an adhesive layer of uniform thickness and bonding the scintillator panel to the upper surface of the adhesive layer.

In a preferred embodiment, the large-area digital sensor comprises the steps of preparing a sensor panel, a scintillator panel, and an optical tape on which both surfaces are protected by a first protective film and a second protective film, and the optical tape from which the first protective film is removed. Positioning the scintillator panel on the sensor panel to which the optical tape is attached to the sensor panel by pressing the optical tape onto the sensor panel, and positioning the scintillator panel on the sensor panel to which the optical tape is attached. It comprises a large-area digital sensor panel manufactured by the step of attaching to the sensor panel by pressing with a roller.

In a preferred embodiment, the large-area digital sensor is a step of applying an adhesive of a uniform thickness to the outer periphery of the roller, by rotating the roller on a pattern mask so that the adhesive applied to the outer periphery of the roller has a uniform pattern The large area digital sensor panel manufactured by printing the patterned adhesive on the front surface of the sensor panel to form an adhesive layer on the front surface of the sensor panel and adhering the scintillator panel to the front surface of the adhesive layer. It is made, including.

In a preferred embodiment, the large-area digital sensor includes a first panel on a first support table, a second panel, a second panel, a plurality of blocks, and a vacuum holding for each block. Positioning the support table on the first panel and releasing the vacuum of the block of the second support table from one side to the other in order to sequentially release the first panel from one side of the second panel. And a large-area digital sensor panel manufactured by adhering the second panel to the first panel by sequentially pressing one side of the second panel using a roller while contacting the surface.

In a preferred embodiment, the first panel is a sensor panel or a sensor panel to which an optical tape is attached, and the second panel is an optical tape or scintillator panel.

Medical X-ray city imaging apparatus according to the present invention is provided with a large area digital sensor in the X-ray detector to provide an effect that can be obtained in a short time by obtaining a cross-sectional image of the inspected object of various angles by rotating the gantry once or twice.

In addition, the medical X-ray imaging apparatus according to the present invention obtains a CT image of a subject within a short time, thereby providing an effect of reducing the time the patient is exposed to X-rays.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a view illustrating a medical X-ray city imaging apparatus according to embodiments of the present invention, Figure 3 is a view illustrating a gantry according to embodiments of the present invention.

2 and 3, the medical X-ray city imaging apparatus 100 includes a gantry 120, a gantry driving unit 121, an examination table 140, and a console (not shown).

The gantry 120 is provided with a cylindrical opening in the center so that the test object 160 is inserted into the opening. In addition, the gantry 120 includes an X-ray generator 122 (to be described later) and an X-ray detector 124 (to be described later), and the test object 160 is positioned at the center of a predetermined area around the opening. The X-ray generator 122 and the X-ray detector 124 are disposed to face each other.

That is, the X-ray generator 122 and the X-ray detector 124 are provided in the gantry 120 in a structure that allows the X-ray 123 to be incident vertically.

In this case, the gantry 120 is rotated by the gantry driving means 121 by the X-ray generator 122 and the X-ray detector 124 while rotating the circumference of the inspected object 160 by 360 ° or a predetermined angle. Take cross-sectional images of angles.

In addition, the gantry 120 is horizontally driven before and after the gantry driving means 121 so that the photographing portion of the inspected object 160 lying on the inspection table 140 is located at the inner center of the gantry 120 ( At this time, the inspection table 140, as shown in Figure 2, is provided with a predetermined interval on the front of the gantry 120).

Thus, the gantry driving means 121 is provided in a predetermined region of the gantry 120 to drive the gantry 120 to rotate about the inspection object 160 located in the opening as a center point, and the gantry 120 The rotation speed is controlled to uniformly rotate, and the gantry 120 may be horizontally driven forwards and backwards. However, the gantry driving means 121 may be provided at any position as long as it is connected to the gantry 120 to drive the gantry 120.

The test table 140 is provided in a bed-type of a predetermined width so as to lie down and fix the patient, which is the test object 160, the test table 140 in the predetermined region of the test table 140 in the center of the gantry 120 Inspection stand driving means 142 for driving to transfer to the provided opening is provided.

In this case, the test table 140 is before and after the test table driving means 142 so that the imaging area of the patient is located in the center of the inside of the gantry 120 (the test table 140 is shown in FIG. 2). Likewise, it is horizontally driven with a predetermined interval on the front of the gantry (120).

In addition, the examination table driving means 142 may drive the examination table 140 up, down or left and right according to the body size and the imaging portion of the patient to obtain a clear image.

The console may be provided with an input device such as a keyboard to receive a user's command. Accordingly, the console may include a gantry driving means 121 for controlling the gantry 120 and an inspection table driving means for controlling the positions of the inspection table 140. 142 can be controlled.

The X-ray generator 122 generates an X-ray 123 to irradiate a patient, which is the object 160, and includes an X-ray source and a collimator in the X-ray generator 122. 123 is irradiated to the X-ray detector 124 through the test object 160 in a fan shape.

The X-ray detector 124 receives the X-ray 123 and converts the signal into an electrical signal. The X-ray detector 124 detects the X-ray 123 generated by the X-ray generator 122, acquires an image, and transmits the image to the outside.

In this case, as shown in FIG. 3, the X-ray detecting unit 124 is provided in the X-ray generating unit 122 by providing a large-area digital sensor 200 having a horizontal length and a vertical length of at least 8 inches, respectively. The X-ray 123 of the fan shape can be absorbed.

Therefore, the conventional X-ray detector has a small area sensor, which cannot absorb X-rays generated by the X-ray generator at a time, thereby solving the conventional problem of photographing by rotating the gantry several tens of times.

In this case, the large area digital sensor 200 includes a large area digital panel including a scintillator panel that converts the X-ray 123 into visible light and a sensor panel that converts the visible light into an electric signal. It may further include a sub glass for protecting the panel, an EL sheet for stabilizing the offset of each pixel of the sensor panel, and a main board electrically connected to the sensor panel.

In addition, the size of the large-area digital sensor 200 depends on the size of the large-area digital sensor panel, it is preferable that the large-area digital sensor panel has a length of 8 inches to 20 inches, respectively.

In this case, a detailed description of the large area digital sensor panel will be described in each embodiment to be described later.

Therefore, the large-area digital sensor 200 is a core device of the medical X-ray city photographing apparatus 100, and the medical X-ray city photographing apparatus 100 is photographed by rotating the gantry 120 once or twice. Therefore, all CT image data can be obtained with minimal X-ray exposure in a short time.

Hereinafter, each embodiment will be described in more detail with respect to the manufacturing method of the large area digital sensor 200 or the large area digital sensor panel which is an important component of the large area digital sensor 200.

In addition, although various means may be used as a means for converting visible light into an electric signal, since TFTs are generally used, the following embodiments will be described using a TFT panel as the sensor panel.

In addition, in each of the embodiments to be described below, a large area TFT panel having a length of 8 to 20 inches in each of the TFT panels is used, and the scintillator panel also has a length of 8 to 20 inches in the length of the scintillator panel. A large area scintillator panel was used.

Example 1

4A and 4B are a cross-sectional view and a plan view illustrating a large area digital sensor according to a first embodiment of the present invention.

4A and 4B, the large-area digital sensor 200 according to the first embodiment of the present invention has a large outer case 210, a TFT panel 231, a scintillator panel 232, and a curable sealant 260. ), A carbon black plate 240 and a curable sponge 250 are included.

The outer case 210 includes a rear case 212 and a front case 214, and the rear case 212 has an accommodation space, so that the TFT panel 231 and the scintillator panel 232 are provided. Accept and protect them.

In addition, the front case 214 has an open area to open one surface of the outer case 210.

On the other hand, as will be described in detail later in the open area of the outer case 210 is provided with a carbon black plate 240 so that the visible light outside the X-rays from the outside is not incident.

Although not illustrated in the drawing, the TFT panel 231 includes a plurality of pixels, and each pixel includes a photodiode and a thin film transistor to detect incident light and convert the visible light into an electrical signal. do.

The scintillator panel 232 includes an aluminum plate 232b and a scintillator layer 232a provided on the aluminum plate 232b so that the photodiode can detect X-rays incident from the outside. It converts to.

In this case, the aluminum plate 232b functions as a reflecting plate for directing the visible light converted from the scintillator layer 232a toward the TFT panel 231, and the scintillator layer 232a may be a CsI or the like. It is made of a material that converts X-rays into visible light.

At this time, the large area digital sensor panel 230 is manufactured by bonding the TFT panel 231 and the scintillator panel 232.

The manufacturing method of the large-area digital sensor panel 230 will be briefly described. A curable sealant 260 is applied to an edge of the TFT panel 231 or the scintillator panel 232, and the TFT panel 231 and the scintilla After bonding the radar panel 232, the large area digital sensor panel 230 is manufactured by curing the curable sealant 260 with ultraviolet or heat.

In this case, in the related art, an adhesive layer is provided between the TFT panel 231 and the scintillator panel 232, but in the first embodiment of the present invention, an adhesive is formed between the TFT panel 231 and the scintillator panel 232. No layer is formed which forms the layer.

The carbon black plate 240 blocks visible light incident from the outside while transmitting X-rays incident from the outside, such that only visible light converted by the scintillator panel 232 is incident on the TFT panel 231. Play a role.

In addition, the carbon black plate 240 covers an open area of the front case 214 of the outer case 210 and is fastened to an edge of the front case 214.

On the other hand, as shown in Figure 4c, the scintillator panel 232 is composed of an aluminum plate 232b and the scintillator layer 232a, the thickness of the aluminum plate 232b and the scintillator layer 232a As it is always constant, the larger the area, the more easily the effect of gravity or the bending of its own weight can occur.

In the first embodiment of the present invention, one or two or more curable sponges 250 are provided between the carbon black plate 240 and the scintillator panel 232 to solve this problem.

That is, when one or more of the curable sponges 250 are provided to press the scintillator panel 232 toward the TFT panel 231 (270), the scintillator panel 232 and the TFT panel 231 may be formed. The scintillator panel 232 and the TFT panel 231 remain in close contact with the large-area digital sensor 200 in any state.

In this case, the method of forming the curable sponge 250 may be formed by fixing one or more curable sponges 250 on the carbon black plate 240 and curing using ultraviolet or heat.

≪ Example 2 >

5A is a diagram illustrating a large area digital sensor panel according to a second embodiment of the present invention.

In the second embodiment of the present invention, the scintillator panel 332 including the TFT panel 331, the scintillator layer 332a, and the aluminum plate 332b includes the TFT panel 231 described in the first embodiment of the present invention. Since it is the same as the scintillator panel 232 which consists of the scintillator layer 232a and the aluminum plate 232b, the overlapping description is abbreviate | omitted below.

Referring to FIG. 5A, the large-area digital sensor panel 330 according to the second embodiment of the present invention includes a TFT panel 331, a scintillator panel 332, and an adhesive layer 333.

The adhesive layer 333 serves to bond the TFT panel 331 and the scintillator panel 332.

In addition, the adhesive layer 333 is formed of an adhesive layer 333 having a uniform thickness by spraying a portion of the adhesive layer 333 with a liquid or gel adhesive 360 on the front surface of the TFT panel 331 instead of being sprayed on a portion thereof.

5B and 5C illustrate a method of manufacturing the large-area digital sensor panel 330 according to the second embodiment of the present invention.

Referring to FIG. 5B, the manufacturing method of the large-area digital sensor panel 330 according to the second embodiment of the present invention is first provided so that the front surface of the TFT panel 331 forms a constant angle with a horizontal plane in space.

In the second embodiment of the present invention, the adhesive 360 is provided vertically so that the adhesive 360 flows down well from the top of the front of the TFT panel 331.

Subsequently, the adhesive 360 is sprayed onto the front surface of the TFT panel 331 by using the adhesive injector 350. In addition, the front edge of the TFT panel 331 is provided with a bonding portion protection jaw 340 so that the adhesive 360 is not applied to the edge.

The reason is that the general TFT panel 331 has a bonding portion (Outline bonding) for connecting external substrates (not shown) to a predetermined portion of the front edge when the adhesive 360 is applied to the bonding portion This is because connection or replacement of the external substrates (not shown) is not easy.

In addition, although the bonding portion protection jaw 340 is illustrated to cover the entire front edge of the TFT panel 331, the bonding portion protection jaw 340 may be provided to cover only the portion where the bonding portion is formed.

Subsequently, the adhesive 360 sprayed on the top of the front of the TFT panel 331 flows down to the bottom of the front of the TFT panel 331 by gravity so that the adhesive 360 is formed on the front of the TFT panel 331. It is formed of an adhesive layer 333 of a constant thickness.

That is, the process is simpler than the conventional method of moving the adhesive injector 350 and applying the adhesive 360 to the front of the TFT panel 331, and uniformity because the adhesive 360 flows down by gravity. It is easy to form the adhesive layer 333 of one thickness.

At this time, the adhesive layer 333 is sprayed with the adhesive 360 to have a thickness of 10 ㎛ to 40 ㎛.

Subsequently, the TFT panel 331 is laid on the inside of the vacuum chamber with the adhesive layer 333 upward, and one side lower portion of the scintillator panel 332 is in contact with an upper portion of the adhesive layer 333. The roller 370 is positioned on an upper side of the scintillator panel 332.

In this case, the lower surface of the scintillator panel 332 is in close contact with the upper surface of the adhesive layer 333 by rotating and moving the roller 370 while being in contact with the upper portion of the scintillator panel 332.

Subsequently, the adhesive layer 333 is cured and the TFT panel 331 and the scintillator panel 332 are adhered by the adhesive layer 333 to manufacture a large area digital sensor panel 330.

In the above-described manufacturing method of the large-area digital sensor panel 330, the step of bonding the scintillator panel 332 onto the TFT panel 331 on which the adhesive layer 333 is formed may be performed in the vacuum chamber ( 380 may be carried out by a vacuum compression method.

Referring to FIG. 5C, first, a TFT panel 331 having an adhesive layer 333 is placed on a first support table 381 provided in the vacuum chamber 380 with the adhesive layer 333 upward, and the scintillator panel Reference numeral 332 is positioned above the TFT panel 331 using the second support table 382.

The second support table 382 has a hole for transmitting pressure in a lower portion thereof, and a cavity connected to the hole in the lower portion of the second support table 382. A vacuum chuck capable of sucking the scintillator panel 332 is provided.

However, the second support table 382 may be provided as an electrostatic chuck pulling the scintillator panel 332 due to an electrostatic phenomenon.

Subsequently, the inside of the vacuum chamber 380 is vacuumed using a second vacuum pump (not shown).

Then, the second support table 382 is lowered until the distance between the TFT panel 331 and the scintillator panel 332 becomes a constant distance.

At this time, the second support table 382 is lowered until the distance between the TFT panel 331 and the scintillator panel 332 is between 5 mm and 10 mm. The reason is to freely drop the scintillator panel 332 in a vacuum so that the scintillator panel 332 is in uniform contact with the adhesive layer 333.

On the other hand, the second support table 382 is lowered by using a moving bar 384, which is formed with a screw on the outside of the motor 383 and moves up and down by the rotation of the motor.

However, the motor 383 can be any means as long as it can move the second support table 382 up and down, such as a hydraulic actuator, a pneumatic actuator.

Subsequently, the pressure inside the second support table 382 is released, and the scintillator panel 332 freely falls to contact the scintillator panel 332 with the adhesive layer 333.

The second support table 382 is lowered to physically apply pressure to the scintillator panel 332 so that the scintillator panel 332 is in uniform contact with the adhesive layer 333.

Subsequently, the vacuum inside the vacuum chamber 380 is released by a purging means so that the TFT panel 331 and the scintillator panel 332 are vacuum compressed.

In addition, the purging means (not shown) is nitrogen purging means for increasing the internal pressure of the vacuum chamber 380 by introducing nitrogen into the vacuum chamber 380.

At this time, the step of physically applying pressure to the scintillator panel 332 by lowering the second support table 382 may be reversed.

Therefore, since the second support table 382 is lowered and the pressure is applied once, and the pressure is applied again by nitrogen purging, the adhesion between the TFT panel 331 and the scintillator panel 332 can be improved. There is.

Example 3

6A and 6B are cross-sectional views and a plan view illustrating a large area digital sensor panel 230 according to a third embodiment of the present invention.

In the third embodiment of the present invention, the scintillator panel 432 including the TFT panel 431 and the scintillator layer 432a and the aluminum plate 432b includes the TFT panel 231 described in the first embodiment of the present invention. Since it is the same as the scintillator panel 232 which consists of the scintillator layer 232a and the aluminum plate 232b, the overlapping description is abbreviate | omitted below.

Referring to FIGS. 6A and 6B, the large-area digital sensor panel 430 may include a scintillator panel 432, a TFT panel 431, and an edge portion at which visible light cannot be sensed by the TFT panel 431. And a bonding layer 433b formed in the dam 433a and the dam 433a to bond the scintillator panel 432 to the TFT panel 431.

The dam 433a is formed of a first thermosetting material such as a first thermosetting material or a first UV-curable material having a high viscosity at an edge portion of the TFT panel 431 which cannot sense visible light, and is formed by heat or UV. After curing, the scintillator layer 432a of the scintillator panel 432 is protected from moisture in the air.

In addition, the adhesive layer 433b should be uniformly formed so as not to generate bubbles on the surface. For example, the manufacturing process of the large area digital sensor panel 430 according to the third embodiment of the present invention is preferably performed in a vacuum chamber.

Hereinafter, a method of manufacturing a large area digital sensor panel according to a third embodiment of the present invention will be described with reference to FIG. 6C.

6C is a flowchart illustrating a manufacturing method of a large area digital sensor panel 430 according to a third embodiment of the present invention.

Referring to FIG. 6C, in the manufacturing method of the large-area digital sensor panel 430 according to the third embodiment of the present invention, the TFT panel 431 is first mounted and fixed on a flat surface, and the first dispensing device 440 is provided. To form the dam 433a.

In this case, the first dispensing device 440 moves along the edge of the TFT panel 431 on the TFT panel 431 to apply the first curable material to form a dam 433a.

In this case, since the first hardenable material does not flow well due to its high viscosity, the first hardenable material may be adhered to an unintended place to compensate for a conventional defect that caused a problem.

The dam 433a is formed to assist in making the adhesive layer 433b bonding the TFT panel 431 and the scintillator panel 432 uniform, and after curing, the TFT panel 431 and the scintillator panel. By adhering the periphery of 432 to prevent the deterioration of the scintillator panel 432 by the moisture in the air.

That is, the dam 433a may be formed in a frame shape having a constant height to protect the inside from the outside at the edge portion of the TFT panel 431.

Subsequently, in the manufacturing method of the large-area digital sensor panel 430 according to the third embodiment of the present invention, the second curable material is prepared in the second dispensing apparatus 450. In addition, the second dispensing device 450 dispenses the second curable material into the dam 433a by filling the second curable material while moving up and down or left and right on the TFT panel 431. As a result, an adhesive layer 433b for bonding the TFT panel 431 and the scintillator panel 432 is formed.

In this case, it is preferable that the first curable material has a higher viscosity than the second curable material, and a thermosetting material or a UV curable material may be used as the curable material. Meanwhile, liquid silicon may be used as the second curable material, and the adhesive layer 433b having a uniform surface is formed by applying the liquid silicon to the TFT panel 431.

The dam 433a is molded and adhered to the edge of the scintillator panel 432 by mounting the scintillator panel 432 on the adhesive layer 433b. Therefore, the scintillator layer 432a of the scintillator panel 432 may be protected from water vapor in the atmosphere.

In addition, the process of adhering the scintillator panel 432 onto the TFT panel 431 on which the adhesive layer 433b is formed during the manufacturing process of the large-area digital sensor panel 430 described above is described in the second embodiment of the present invention. As such, it may be carried out by a vacuum compression method in the vacuum chamber.

Example 4

7A to 7D are flowcharts illustrating a method of manufacturing a large area digital sensor panel according to a fourth embodiment of the present invention.

In the fourth embodiment of the present invention, the scintillator panel 532 including the TFT panel 531 and the scintillator layer 532a and the aluminum plate 532b includes the TFT panel 231 described in the first embodiment of the present invention. Since it is the same as the scintillator panel 232 which consists of the scintillator layer 232a and the aluminum plate 232b, the overlapping description is abbreviate | omitted below.

Referring to FIG. 7A, a TFT panel 531 and a scintillator panel 232 are prepared in a method of manufacturing a large area digital sensor panel according to a fourth embodiment of the present invention.

At this time, the TFT panel 531 is provided with a photodiode for converting visible light into an electrical signal on one surface. In addition, the TFT panel 531 is provided with a plurality of holes so that the other surface is adsorbed by the support table 540 capable of vacuum-adsorbing the panel.

At this time, when the TFT panel 531 is adsorbed to the support table 540, one surface with the photodiode is directed downward. The other surface adsorbed to the support table 50 among the surfaces of the TFT panel 531 is a surface without a photodiode.

A bath 570 containing a liquid adhesive 560 is prepared under the support table 540 on which the TFT panel 531 is adsorbed.

At this time, the first roller 550 having a predetermined portion is immersed in the liquid adhesive 560 contained in the bath 570 is prepared.

Referring to FIG. 7B, the support table 540 on which the TFT panel 531 is vacuum-adsorbed is moved in a predetermined direction, as shown in the figure. At the same time, the first roller 550 is rotated to apply the liquid adhesive 560 contained in the bath 570 to one surface of the TFT panel 531.

At this time, the TFT panel 531 and the first roller 550 in the contact position adjacent to the movement direction of the TFT panel 531 and the rotation direction of the first roller 550 so as to be opposite to each other the first direction It is preferable to rotate the roller 550 or to move the TFT panel 531 so that the liquid adhesive 560 can be applied well to one surface of the TFT panel 531.

In FIG. 7B, the liquid adhesive 560 does not apply to the entire surface of the TFT panel 531, but starts to be applied after being spaced apart from one end by a predetermined distance, but the front surface of the TFT panel 531. It may be applied to.

To apply as in FIG. 7B, the support table 540 for moving the TFT panel 531 moves in both the vertical and horizontal directions. That is, the TFT panel 531 is moved in the horizontal direction while the liquid adhesive 560 existing on the surface of the first roller 550 is moved to the position where the TFT panel 531 is applied in the vertical direction. As the moment is determined, the area where the liquid adhesive layer 533 is applied to one surface of the TFT panel 531 is changed.

At this time, the liquid adhesive layer 533 applied to one surface of the TFT panel 531 by the first roller 550 is affected by gravity because one surface of the TFT panel 531 is placed in a downward direction. do. In addition, surface tension of the liquid adhesive layer 533 is generated by the viscosity of the liquid adhesive 560 and the surface energy of one surface of the TFT panel 531.

Therefore, the thickness of the liquid adhesive layer 533 formed on one surface of the TFT panel 531 is a thickness in which the gravity, the surface energy of one surface of the TFT panel 531 and the viscosity of the liquid adhesive 560 are balanced. Is applied.

In this case, the gravity cannot be changed by a general method, but the surface energy of one surface of the TFT panel 531 and the viscosity of the liquid adhesive 560 can be changed, so that the gravity of one surface of the TFT panel 531 can be changed. The thickness of the liquid adhesive layer 533 may be controlled by changing the surface energy and the viscosity of the liquid adhesive 560.

At this time, the thickness of the liquid adhesive layer 533 is preferably 10 to 40㎛.

7C and 7D, after the process of applying the liquid adhesive layer 533 to one surface of the TFT panel 531 is completed, the process of bonding the scintillator panel 532 onto the TFT panel 531. Proceed.

At this time, the liquid adhesive layer 533 may include a step of maintaining a predetermined time to have a uniform thickness.

One end of the scintillator panel 532 is positioned in accordance with one end of the liquid adhesive layer 533 applied on one surface of the TFT panel 531, and the second roller 580 is positioned thereon to position the scintillator. Pressure is applied at one end of panel 532.

Subsequently, the support table 540 which vacuum-adsorbs the TFT panel 531 is moved in a predetermined direction, and the scintillator panel 532 is moved to the TFT panel 531 while rotating the second roller 580. Press to adhere.

At this time, the rotation direction of the second roller 580 is rotated in the same direction as the movement direction of the TFT panel 531 when the TFT panel 531 and the scintillator panel 532 are in contact with each other. desirable.

The second roller 580 is pressed from one end of the scintillator panel 532 to the other end, so that the TFT panel 531 and the scintillator panel 532 are completely in contact with each other so that the TFT panel 531 and the scintilla Bubbles may or may not be present between the radar panels 532.

Therefore, according to the fourth embodiment of the present invention, the manufacturing method of the large-area digital sensor panel is performed by gravity of the liquid adhesive 560 bonding the TFT panel 531 and the scintillator panel 532 to the gravity of the TFT panel 531. By uniformly applying the surface energy of one surface and the viscosity of the liquid adhesive 560 to obtain a large-area digital sensor panel having a liquid adhesive layer 533 having a uniform thickness.

In addition, according to the fourth embodiment of the present invention, a method for manufacturing a large-area digital sensor panel is performed by attaching the scintillator panel 532 to one surface of the TFT panel 531 by gravity. By splicing naturally and then bonding using a roller, a large-area digital sensor panel in which no bubbles are generated or removed between the TFT panel 531 and the scintillator panel 532 is obtained.

In addition, as described above in the second embodiment of the present invention, the process of adhering the scintillator panel 532 onto the TFT panel 531 on which the adhesive layer 533 is formed during the manufacturing process of the large-area digital sensor panel described above is performed by vacuum. It can be carried out by the method of vacuum compression inside the chamber.

Example 5

8A is a flowchart illustrating a manufacturing method of a large area digital sensor panel according to a fifth embodiment of the present invention, and FIG. 8B is a step of forming an adhesive layer having a constant thickness using a knife bar according to the fifth embodiment of the present invention. It is a figure explaining.

In the fifth embodiment of the present invention, the scintillator panel 632 including the TFT panel 631, the scintillator layer 632a, and the aluminum plate 632b includes the TFT panel 231 described in the first embodiment of the present invention. Since it is the same as the scintillator panel 232 which consists of the scintillator layer 232a and the aluminum plate 232b, the overlapping description is abbreviate | omitted below.

Referring to FIG. 8A, in the manufacturing method of a large area digital sensor panel according to a fifth embodiment of the present invention, first, the first support table 640 is arranged such that an upper surface of a plurality of pixels arranged in the TFT panel 631 faces upward. Position on.

After preparing the TFT panel 631, an adhesive is prepared in the dispensing device 650. Subsequently, the dispensing apparatus 650 applies the adhesive over the entire surface of the upper surface of the TFT panel 631 while moving up and down or left and right on the upper surface of the TFT panel 631.

For this reason, an adhesive layer 633 having a constant thickness is formed on the upper surface of the TFT panel 631. At this time, it is preferable that the adhesive uses a thermosetting resin such as silicone.

Meanwhile, as shown in FIG. 8B, the knife bar 660 is positioned to maintain a predetermined distance from the TFT panel 631 on one side of the TFT panel 631. In this case, the predetermined interval means the thickness of the adhesive layer 633. In addition, the length of the lower surface of the knife bar 660 preferably matches the length of one side of the TFT panel 631.

Thus, the knife bar 660 is in contact with the adhesive on one side of the TFT panel 631 to move to the other side of the TFT panel 631 to evenly spread the adhesive layer 633 having a uniform thickness. An adhesive layer 633 having a constant thickness is formed.

In this case, the thickness of the adhesive layer 633 is most preferably 10 μm to 40 μm, and the knife bar 660 is slid up and down on one side of the TFT panel 631 to be aligned with the top surface of the TFT panel 631. The thickness of the adhesive layer 633 may be adjusted by adjusting the distance.

In addition, the knife bar 660 is preferably formed of the same silicone as the adhesive, so that the adhesive does not adhere well to the knife bar 660 so that the adhesive is evenly disposed on the top surface of the TFT panel 631. To be distributed.

Subsequently, a manufacturing process of adhering the scintillator panel 632 to convert X-rays into visible light is performed on the upper surface of the adhesive layer 633.

In this case, the step of adhering the scintillator panel 632 to the adhesive layer 633 includes positioning the scintillator panel 632 on the TFT panel 631 with the adhesive layer 633 and the scintillator panel ( 632 is pressed by the roller 670 and attached to the TFT panel 631.

The lower portion of one side of the scintillator panel 632 is in contact with an upper portion of the adhesive layer 633, and the roller 670 rotates from one end of the scintillator panel 632 to the other end to move the scintillator. The lower surface of the radar panel 632 and the upper surface of the adhesive layer 633 are in close contact with each other.

Subsequently, the adhesive layer 633 is cured by heat or ultraviolet rays.

Accordingly, the adhesive layer 633 is cured to uniformly bond the TFT panel 631 and the scintillator panel 632 to produce the large area digital sensor panel.

In addition, the manufacturing process of the large-area digital sensor panel described above may be performed in a vacuum chamber.

Example 6

9A is a cross-sectional view illustrating a large area digital sensor panel according to a sixth embodiment of the present invention.

In the sixth embodiment of the present invention, the scintillator panel 732 including the TFT panel 731, the scintillator layer 732a, and the aluminum plate 732b includes the TFT panel 231 described in the first embodiment of the present invention. Since it is the same as the scintillator panel 232 which consists of the scintillator layer 232a and the aluminum plate 232b, the overlapping description is abbreviate | omitted below.

Referring to FIG. 9A, the large area digital sensor panel is composed of a TFT panel 731, a scintillator panel 732, and an optical tape 733.

Both surfaces of the optical tape 733 are protected by the first protective film 733a and the second protective film 733b. In this case, the optical tape 733 may have a transmittance of about 90% and a refractive index of about 1.45 to about 1.47.

In addition, the optical tape 733 may use a material having a low thermal strain at a specific temperature, and preferably, a material having a low thermal strain at 60 ° C. or less.

9B to 9F are flowcharts illustrating a method of manufacturing a large-area digital sensor panel according to a sixth embodiment of the present invention.

In the manufacturing process of the large-area digital sensor panel according to the sixth embodiment of the present invention, all processes may be performed in a vacuum chamber to remove bubbles that may be included in the optical tape 733.

Referring to the drawings, in the manufacturing method of the large-area digital sensor panel according to the sixth embodiment of the present invention, first, a TFT panel 731, a scintillator panel 732, and an optical tape 733 are prepared.

In this case, the TFT panel 731 includes pixels for converting visible light into an electrical signal on one surface, and is positioned in the vacuum chamber so that one surface of the TFT panel 731 faces upward.

Subsequently, the first protective film 733a of the optical tape 733 is removed, and the surface on which the first protective film 733a of the optical tape 733 is removed faces one surface of the TFT panel 731. Position it.

Subsequently, the upper portion of the one side of the TFT panel 731 and the lower portion of the one side of the optical tape 733 are positioned to contact each other, and the roller 750 is positioned at the upper side of the one side of the optical tape 733.

In this case, the surface of the TFT panel 731 is removed from the first protective film 733a of the optical tape 733 by rotating the roller 750 in contact with the other side of the optical tape 733. Is attached to one surface of the.

Subsequently, the second protective film 733b of the optical tape 733 attached to the TFT panel 731 is removed, and the scintillator is disposed on one side of the TFT panel 731 to which the optical tape 733 is attached. The lower side of one side of the panel 732 is contacted, and the roller 750 is positioned on the upper side of the one side of the scintillator panel 732.

At this time, the roller 750 rotates while the roller 750 is in contact with the other side of the scintillator panel 732 so that the bottom surface of the scintillator panel 732 is the second protective film 733b of the optical tape 733. It is attached to the removed face.

Accordingly, the large area digital sensor panel is manufactured.

Since the manufacturing process of the large-area digital sensor panel according to the sixth embodiment of the present invention described above is performed in a vacuum chamber, it not only removes bubbles that may be formed on the optical tape 733, but also has a constant thickness. Since the scintillator panel 732 and the TFT panel 731 are bonded to each other with a tape 733, the spacing between the scintillator panel 732 and the TFT panel 731 can be kept uniform.

Example 7

10A and 10B illustrate a manufacturing method of a large area digital sensor panel according to a seventh embodiment of the present invention.

In the seventh embodiment of the present invention, the scintillator panel 832 including the TFT panel 831 and the scintillator layer 832a and the aluminum plate 832b includes the TFT panel 231 described in the first embodiment of the present invention. Since it is the same as the scintillator panel 232 which consists of the scintillator layer 232a and the aluminum plate 232b, the overlapping description is abbreviate | omitted below.

10A and 10B, in the manufacturing method of the large-area digital sensor panel according to the seventh embodiment of the present invention, first, a silicon 840 having a uniform thickness is coated on the outer circumference of the roller 860.

In this case, various methods may be used to apply the silicon 840 which is the adhesive to the outer circumference of the roller 860.

For example, the silicon injector is positioned above the roller 860 as the adhesive injector 850, and the silicon 840 is uniformly formed on the outer circumference of the roller 860 while the roller 860 is rotated. There is a method by spraying. The method may uniformly adjust the thickness of the silicon 860 by adjusting the injection pressure of the silicon injector to inject.

Also, the silicon injector 850 is positioned below the roller 860 as the adhesive injector 850. When the silicon forms at the end of the silicon feeder, the silicon 840 is rotated while the roller 860 is continuously rotated. There is a method of uniformly applying to the outer circumference of the roller 860. The method uses a capillary force on the surface of the roller 860, and the silicon 840 to be applied has the advantage of being able to control the thickness more precisely and evenly.

Using the above methods, the thickness of the silicon 840 applied to the outer circumference of the roller 860 is adjusted to be 10 μm to 40 μm.

Subsequently, the roller 860 coated with the silicon 840 is rotated on the pattern mask 870 having the predetermined pattern 870a so that the silicon 840 applied to the roller 860 is formed with a constant pattern. .

Subsequently, the patterned adhesive 840a is printed on the entire surface of the TFT panel 831 to form an adhesive layer 833 having a uniform thickness on the TFT panel 831.

Subsequently, the TFT panel 831 is laid on the inside of the vacuum chamber with the adhesive layer 833 upward, and one side lower portion of the scintillator panel 832 is in contact with an upper portion of the adhesive layer 833. The compression roller 880 is positioned on an upper side of the scintillator panel 832.

Subsequently, the compression roller 880 is rotated while being in contact with the other upper portion of the scintillator panel 832 such that the bottom surface of the scintillator panel 832 is in close contact with the top surface of the adhesive layer 833.

Subsequently, the adhesive layer 833 is cured and the TFT panel 831 and the scintillator panel 832 are adhered by the adhesive layer 833, thereby manufacturing a large area digital sensor panel.

In addition, the process of adhering the scintillator panel 832 onto the TFT panel 831 on which the adhesive layer 833 is formed during the manufacturing process of the large-area digital sensor panel described above is performed as described in the second embodiment of the present invention. It can be carried out by the method of vacuum compression inside the chamber.

Example 8

11A to 11F are flowcharts illustrating a method of manufacturing the large-area digital sensor panel 230 according to the eighth embodiment of the present invention.

In the eighth embodiment of the present invention, the scintillator panel 932 including the TFT panel 931 and the scintillator layer 932a and the aluminum plate 932b is the TFT panel 231 described in the first embodiment of the present invention. And the same as the scintillator panel 232 formed of the scintillator layer 232a and the aluminum plate 232b, and thus redundant description thereof will be omitted below.

Referring to the drawings, in the manufacturing method of the large area digital sensor panel according to the eighth embodiment of the present invention, the TFT panel 931 is first placed on the first support table 940.

Subsequently, the optical tape 933 is adsorbed by the second support table 950 and placed on the TFT panel 931. In this case, the second support table 950 may include a plurality of blocks, and each block may maintain a vacuum or release a vacuum. In addition, the end of the block provided in the second support table 950 is interconnected with a vacuum pump (not shown) for generating a vacuum.

In addition, it is preferable that the number and position of the blocks are appropriately arranged so that an adsorption force capable of uniformly fixing the optical tape 933 acts.

Subsequently, vacuum is sequentially released from one of the blocks of the second support table 950 in the other direction so that the optical tape 933 contacts the surface of the first support table 940.

At the same time, the optical tape 933, which is in contact with the TFT panel 931, begins to be compressed using a roller 960.

In this case, the roller 960 is positioned between the optical tape 933 and the second support table 950, and rotates the optical tape 933 on the TFT panel 931 by rotating in one direction. Attach to.

That is, the TFT panel 931 and the optical tape 933 are adhered to each other by releasing the blocks of the second support table 950 sequentially and compressing them using a roller 960.

Subsequently, the TFT panel 931 is positioned on the first support table 940 with the optical tape 933 upward, and the scintillator panel 932 uses the second support table 950. A process of adhering the TFT panel 931 and the scintillator panel 932 by placing the upper portion spaced apart from the TFT panel 931 is performed.

Subsequently, the TFT panel in which the scintillator panel 932 is provided in the first support table 940 is sequentially released from one of the blocks of the second support table 950 in the other direction. (931) Make contact with the surface. At this time, an optical tape 933 is attached to the surface of the TFT panel 931, and the scintillator panel 932 is provided to be in contact with the optical tape 933.

At the same time, the scintillator panel 932 in contact with the optical tape 933 is started to be pressed using the roller 960.

In this case, the roller 960 is positioned between the scintillator panel 932 and the second support table 950, and rotates the scintillator panel 932 to the optical tape 933 by rotating in one direction. ) On the substrate.

That is, the TFT panel 931 and the scintillator panel 932 are separated by the optical tape 933 by sequentially releasing the blocks of the second support table 950 and compressing them using the roller 960. Are glued.

In addition, the process of adhering the scintillator panel 932 onto the TFT panel 931 to which the optical tape 933 is attached during the manufacturing process of the large-area digital sensor panel described above is described in the second embodiment of the present invention. In the vacuum chamber, the method may be performed by vacuum compression.

Although the configuration and operation of the present invention have been illustrated in accordance with the above description and drawings, this is merely an example, and various changes and modifications are possible without departing from the spirit and scope of the present invention.

1 is a view for briefly explaining a conventional CT imaging apparatus.

2 is a view illustrating a medical X-ray city imaging apparatus according to embodiments of the present invention.

3 is a diagram illustrating a gantry according to embodiments of the present invention.

4A and 4B are a cross-sectional view and a plan view illustrating a large area digital sensor according to a first embodiment of the present invention.

4C is a cross-sectional view illustrating a phenomenon that may occur when the large-area digital sensor is not provided with a curable sponge in the first embodiment of the present invention.

5A is a diagram illustrating a large area digital sensor panel according to a second embodiment of the present invention.

5B and 5C illustrate a method of manufacturing the large-area digital sensor panel 230 according to the second embodiment of the present invention.

6A and 6B are cross-sectional views and a plan view illustrating a large area digital sensor panel according to a third embodiment of the present invention.

6C is a flowchart illustrating a manufacturing method of a large area digital sensor panel according to a third embodiment of the present invention.

7A to 7D are flowcharts illustrating a method of manufacturing a large area digital sensor panel according to a fourth embodiment of the present invention.

8A is a flowchart illustrating a manufacturing method of a large area digital sensor panel according to a fifth embodiment of the present invention.

8B is a view illustrating a step of forming an adhesive layer having a predetermined thickness using a knife bar according to a fifth embodiment of the present invention.

9A is a cross-sectional view illustrating a large area digital sensor panel according to a sixth embodiment of the present invention.

9B to 9F are flowcharts illustrating a method of manufacturing a large-area digital sensor panel according to a sixth embodiment of the present invention.

10A and 10B illustrate a manufacturing method of a large area digital sensor panel according to a seventh embodiment of the present invention.

11A to 11F are flowcharts illustrating a method of manufacturing a large area digital sensor panel according to an eighth embodiment of the present invention.

<Code Description of Main Parts of Drawing>

10, 100: medical X-ray city photographing device 13, 120: gantry

121: gantry driving means 122: X-ray generator

123: X-ray 124: X-ray detector

140: inspection table 142: inspection table driving means

160: Test Subject 200: Large Area Digital Sensor

Claims (17)

A gantry having a cylindrical opening in a central portion thereof, the receiving object being inspected in the opening to rotate around the inspected object; An inspection table which is horizontally driven to be inserted into an opening provided in the gantry and fixes the inspected object; And In the X-ray city imaging apparatus having a; gantry driving means for driving the gantry Inside the gantry An X-ray generator generating X-rays; And Detecting X-rays generated by the X-ray generator at the position opposite to the X-ray generator and transmitted through the test object, the horizontal and vertical lengths are each at least 8 inches or more and formed to a size of 20 inches or less. It includes; X-ray detection unit is provided with an area digital sensor, The large area digital sensor Forming a dam of a first curable material on an edge portion of the sensor panel; Dispensing a second curable material into a dam formed on the sensor panel to form an adhesive layer; Mounting the scintillator panel on the adhesive layer formed on the sensor panel and bonding the scintillator panel; And And curing the dam and the adhesive layer. The medical X-ray photographing apparatus of claim 1, wherein the large area digital sensor panel is manufactured. The method of claim 1, The medical X-ray city photographing apparatus includes the large-area digital sensor in the X-ray detection unit, and photographs the gantry by rotating the gantry once or twice. The method of claim 2, The test table is a medical X-ray imaging apparatus characterized in that it is driven up, down, left or right according to the subject. delete 4. The method according to any one of claims 1 to 3, The large area digital sensor A sensor panel having a photodiode and detecting visible light; A scintillator panel provided on the sensor panel and converting X-rays into visible light; A curable sealant provided between the sensor panel and the scintillator panel and provided along edges of the sensor panel and the scintillator panel; A carbon black plate provided on the scintillator panel; And And a curable sponge provided at one or two or more at a predetermined position between the scintillator panel and the carbon black plate. The method of claim 5, The curable sealant is medical X-ray imaging apparatus, characterized in that cured by ultraviolet or heat. 4. The method according to any one of claims 1 to 3, The large area digital sensor A front surface of the sensor panel is provided to stand at an angle with a horizontal plane in space; Spraying an adhesive on the front surface of the sensor panel; The sprayed adhesive flows from the top of the front of the sensor panel to the bottom of the front to form an adhesive layer having a predetermined thickness; And Bonding the scintillator panel to the front surface of the adhesive layer; and the large-area digital sensor panel manufactured as described above. delete The method of claim 1, And the viscosity of the first curable material is higher than that of the second curable material. The method of claim 9, And the first curable material and the second curable material are thermosetting materials or UV curable materials, and are cured by heat or UV. 4. The method according to any one of claims 1 to 3, The large area digital sensor Positioning one surface of the sensor panel to face downward; Preparing a first roller positioned below the sensor panel and partially submerged in a bath containing liquid adhesive; Moving the sensor panel in a horizontal direction and simultaneously rotating the first roller to apply the liquid adhesive layer from one side to the other side of the surface of the sensor panel; Positioning the scintillator panel on one surface of the sensor panel after the application of the liquid adhesive layer is completed on one surface of the sensor panel; And And bonding the scintillator panel with one surface of the sensor panel by pressing the second roller from one side to the other side of the scintillator panel. The large-area digital sensor panel is manufactured. X-ray city photographing device. The method of claim 11, Positioning the sensor panel so that the one surface is directed in the lower direction is a medical X-ray imaging apparatus, characterized in that for positioning the other surface of the sensor panel by vacuum suction to the support table. 4. The method according to any one of claims 1 to 3, The large area digital sensor Positioning the sensor panel on the first support table; Applying an adhesive to an upper surface of the sensor panel; Spreading an upper surface of the sensor panel coated with the adhesive with a knife bar to form an adhesive layer having a uniform thickness; And And attaching a scintillator panel to an upper surface of the adhesive layer. A medical X-ray photographing apparatus comprising a large-area digital sensor panel. 4. The method according to any one of claims 1 to 3, The large area digital sensor Preparing an optical tape on which both surfaces are protected by a sensor panel, a scintillator panel, and a first protective film and a second protective film; Positioning the optical tape on which the first protective film is removed on the sensor panel; Pressing the optical tape with a roller and attaching the optical tape to the sensor panel; Positioning the scintillator panel on the sensor panel to which the optical tape is attached; And And pressing the scintillator panel with a roller and attaching the scintillator panel to the sensor panel. 4. The method according to any one of claims 1 to 3, The large area digital sensor Applying an adhesive of uniform thickness to the outer periphery of the roller; Rotating the roller on a pattern mask so that the adhesive applied to the outer circumference of the roller has a predetermined shape pattern; Printing an adhesive having a predetermined shape on the outer circumference of the roller on the front surface of the sensor panel to form an adhesive layer on the front surface of the sensor panel; And And a step of adhering the scintillator panel to the front surface of the adhesive layer. 4. The method according to any one of claims 1 to 3, The large area digital sensor Positioning the first panel on the first support table; Positioning a second support table on the first panel, the second support table having a second panel, the plurality of blocks, and the vacuum holding of each block being adjusted; And The vacuum of the block of the second support table is sequentially released from one side to the other side to sequentially contact the surface of the first panel from one side of the second panel and at the same time using the second roller. And bonding the second panel to the first panel by sequentially pressing one side of the panel. The large-area digital sensor panel comprising the large area digital sensor panel is manufactured. The method of claim 16, And the first panel is a sensor panel or a sensor panel to which an optical tape is attached, and the second panel is an optical tape or a scintillator panel.

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