CN217954879U - Liquid crystal display screen for medical CT machine - Google Patents

Abstract

The utility model provides a liquid crystal display for medical treatment CT machine includes thin film transistor liquid crystal display panel, drive module and backlight unit at least, and thin film transistor liquid crystal display panel and backlight unit are located drive module's both sides. The thin film transistor liquid crystal panel at least comprises an upper polarizer, an array substrate, a color film substrate, a liquid crystal layer, a color filter and a lower polarizer in sequence. The driving module may include a source driver, a gate driver, and a vertical driver, and the drivers are distributed on different sides of the tft liquid crystal panel and connected to the tft liquid crystal panel. The backlight module sequentially comprises a back frame, a lamp holder, a reflecting plate, a light guide plate, a light collecting plate, a diffusing plate and a heat dissipating plate. The liquid crystal display screen can realize ultra-wide visual angle, high brightness and high contrast display, and can provide high-definition pixel data, images and other displays for the medical CT machine, so that efficient hardware guarantee is provided for diagnosis and treatment judgment in the medical field.

Description

Liquid crystal display screen for medical CT machine

Technical Field

The utility model relates to a display screen technical field, in particular to a liquid crystal display for medical treatment CT machine.

Background

The Liquid Crystal Display (LCD) has the advantages of thin body, space saving, power saving, no radiation, soft picture, no harm to eyes, etc., and can be applied to various scenes in different fields. With the development of science and technology, equipment related to the medical field is continuously innovated, and the accuracy of medical diagnosis results is further improved. In medical testing, the more advanced the device, the more stringent the technical requirements are placed on the display screens used in the device.

In the medical field, CT (Computed Tomography) machines are increasingly used. For example, in a lung CT machine, the existing display screen cannot meet the display requirements of ultra-wide viewing angle, high brightness and high contrast in terms of display viewing angle, display brightness and backlight. The display screen can not meet the requirements of novel medical equipment, and the lung CT machine is influenced to display results when in detection, so that the accuracy and precision of diagnosis and treatment judgment of a doctor on a detected disease are influenced.

Therefore, in the lung CT machine in the medical field, how to realize ultra-wide viewing angle, high brightness, high contrast, LED backlight built-in driving of the display screen to provide ultra-high definition pixel CT machine display and provide solid hardware conditions for diagnosis and treatment is one of the problems that the technicians in the field want to actively solve.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned not enough in the CT machine of lung, the utility model provides a liquid crystal display for medical treatment CT machine can realize super wide visual angle, hi-lite, high contrast demonstration, can provide the data of high definition pixel, demonstration such as image for medical treatment CT machine to diagnosis and treatment for medical treatment field judges and provides efficient hardware guarantee.

In order to achieve at least one of the advantages or other advantages, an embodiment of the present invention provides a liquid crystal display screen for a medical CT machine, which at least includes a thin film transistor liquid crystal panel, a driving module and a backlight module, wherein the thin film transistor liquid crystal panel and the backlight module are located at two sides of the driving module. The thin film transistor liquid crystal panel at least comprises an upper polarizer, an array substrate, a color film substrate, a liquid crystal layer, a color filter and a lower polarizer in sequence. The driving module is positioned below the thin film transistor liquid crystal panel and is arranged adjacent to the lower polarizer. The backlight module is positioned below the driving module and is opposite to the lower polarizer. The backlight module sequentially comprises a back frame, a lamp bracket, a reflecting plate, a light guide plate, a light collecting plate, a diffusing plate and a heat dissipating plate.

In some embodiments, the thin film transistor is an amorphous silicon thin film transistor. The amorphous silicon thin film transistor is adopted, so that the manufacturing is convenient, the production cost is low, and the whole production cost of the liquid crystal display screen is saved.

In some embodiments, the array substrate is a thin film transistor array glass substrate. The thin film transistor array glass substrate can avoid noise, reduce the power consumption of the thin film transistor liquid crystal panel and further improve the display quality of the liquid crystal display screen.

In some embodiments, the color filter substrate includes a red (R) green (G) blue (B) pixel array, and the red, green and blue pixel array is arranged in at least one of a stripe array, a mosaic array, and a Delta array.

In some embodiments, the color filter includes red, green and blue color filter layers to ensure that the liquid crystal display panel realizes color display.

In some embodiments, the color filter includes an indium tin oxide transparent conductive film as a conductive electrode in the liquid crystal display panel.

In some embodiments, the driving module may include a source driver, a gate driver, and a vertical driver, which are disposed on different sides of the tft-lcd panel and connected to the tft-lcd panel.

In some embodiments, the liquid crystal display panel comprises a screen glass plate, which is arranged above the thin film transistor liquid crystal panel for viewing information and messages displayed on the thin film transistor liquid crystal panel.

Compared with the prior art, the utility model provides a liquid crystal display for medical treatment CT machine has following at least and has:

1. the utility model discloses in a liquid crystal display for medical treatment CT machine can realize super wide visual angle, hi-lite, high contrast demonstration, and LED among the liquid crystal display is the built-in drive in a poor light, can provide the demonstration such as data, the image of high definition pixel for medical treatment CT machine to diagnosis and treatment for the medical treatment field judges and provides efficient hardware guarantee.

2. The utility model discloses in adopt colored liquid crystal module and amorphous silicon TFT liquid crystal panel structure in the liquid crystal display's of medical treatment CT machine product, pour into liquid crystal material into the narrow gap between TFT array glass substrate and the filter glass substrate, realize the flat setting, can resist little consumption, the amazing eyes of non-glare, no electromagnetic radiation and X-ray radiation.

3. In the liquid crystal display panel, when a TFT array as a photoelectric switch is controlled by a data signal in a medical CT machine, the amount of transmitted light from a backlight assembly can be adjusted. A color image can be created by adjusting the amount of transmitted light in the TFT array.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of a liquid crystal display screen for a medical CT machine according to the present invention;

FIG. 2 is a schematic diagram of an embodiment of a TFT-LCD panel of the LCD shown in FIG. 1;

fig. 3A to 3C are arrangement modes of pixel arrays in a color film substrate of the thin film transistor liquid crystal panel shown in fig. 2;

FIG. 4 is a schematic diagram of an embodiment of a driving module of the LCD panel shown in FIG. 1; and

fig. 5 is a schematic structural diagram of an embodiment of a backlight module in the liquid crystal display screen shown in fig. 1.

Reference numerals:

1-liquid crystal display screen 10-thin film transistor liquid crystal panel 11-upper polarizer

12-array substrate 13-color film substrate 14-liquid crystal layer

15-color filter 16-lower polarizer 20-driving module

21-source driver 22-gate driver 23-vertical driver

30-backlight module 31-back frame 32-lamp holder

33-reflector 34-light guide 35-light collector

36-diffuser 37-radiator

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a liquid crystal display screen for a medical CT machine according to the present invention. To achieve at least one of the above advantages or other advantages, an embodiment of the present invention provides a liquid crystal display panel 1 for a medical CT machine, which at least includes a thin film transistor liquid crystal panel 10 (TFT panel for short), a driving module 20, and a backlight module 30. Fig. 1 is a side view of the liquid crystal display panel 1, and the liquid crystal display panel 1 sequentially includes, from the top down, a tft-lcd panel 10, a driving module 20, and a backlight module 30 from the viewing angle when a viewer or a user directly views the display area of the liquid crystal display panel 1.

Referring to fig. 2 in conjunction with fig. 1, fig. 2 is a schematic structural diagram of an embodiment of a tft-lcd panel in the lcd shown in fig. 1. Fig. 2 is a side view of the TFT liquid crystal panel 10 (referred to as a TFT panel for short), where the TFT liquid crystal panel 10 may at least include, from top to bottom, an upper polarizer 11, an array substrate 12, a color film substrate 13, a liquid crystal layer 14, a color filter 15, and a lower polarizer 16. The thin film transistor is an amorphous silicon thin film transistor (amorphous silicon thin film transistor, short for a-Si: H TFT). In other words, the thin film transistor liquid crystal panel 10 in the illustrated example is an amorphous silicon thin film transistor display panel, referred to simply as an a-Si TFT LCD. The amorphous silicon thin film can be prepared by decomposing silane by glow discharge. The amorphous silicon can be deposited on various large-area substrates, and has wide application and low production cost.

The polarizer is also called a polarizing film, and is divided into an upper polarizer 11 and a lower polarizer 16. The polarization functions of the upper polarizer 11 and the lower polarizer 16 are perpendicular to each other, and act like a barrier to block light wave components as required. For example, the polarizer may block light wave components perpendicular to the barriers of the polarizer and only allow light wave components parallel to the barriers to pass through.

The array substrate 12 in the illustrated example is a thin film transistor array glass substrate, i.e., a TFT array glass substrate. The color filter substrate 13 includes a red (R), green (G), and blue (B) pixel array. The red, green and blue pixel array can be arranged in various ways. As shown in fig. 3A to 3C, the arrangement of the RGB pixel array in the color filter substrate 13 may be a Stripe array (Stripe array) shown in fig. 3A, a Mosaic array (Mosaic array) shown in fig. 3B, or a Delta array shown in fig. 3C.

The thin film transistor array glass substrate (array substrate 12) comprises a plurality of groups of thin film transistors and a plurality of RGB pixel units. Each group of thin film transistors corresponds to one RGB pixel unit. Each group of thin film transistors comprises three thin film transistors which are respectively positioned in the first row to the third row, and the three thin film transistors respectively correspond to the R sub-pixel, the G sub-pixel and the B sub-pixel in the corresponding RGB pixel unit. The aspect ratios of the conductive channels of all the thin film transistors in each row are not completely the same and are all within a preset ratio range, so that the total drain current of the row is within a preset current range. Based on that the drain current is only related to the width-length ratio of the conducting channel of the thin film transistor, the larger the width-length ratio is, the larger the drain current is, and the smaller the width-length ratio is, the smaller the drain current is. In the thin film transistor liquid crystal panel 10, the array substrate 12 is a thin film transistor array glass substrate, which can avoid noise and reduce the power consumption of the thin film transistor liquid crystal panel 10, thereby improving the display quality of the liquid crystal display screen 1.

The Color Filter (CF) 15 is also called a Color Filter, and includes a Color Filter layer of red (R), green (G), and blue (B), thereby generating RGB three primary colors to realize full-Color display of the liquid crystal display panel 1. An Indium Tin Oxide (ITO) transparent conductive film may be included in the color filter 15 to constitute a transparent electrode in the thin film transistor liquid crystal panel 10.

The Liquid Crystal layer 14 is mainly made of a Liquid Crystal Material (english name is Liquid Crystal Material) for controlling the brightness of transmitted light, thereby obtaining an information display effect.

Referring to fig. 1 again, the driving module 20 is disposed below the tft-lcd panel 10 and adjacent to the lower polarizer 16. The driving module 20 may also be referred to as a driving IC.

Referring to fig. 4 in conjunction with fig. 1, fig. 4 is a schematic structural diagram of an embodiment of a driving module in the liquid crystal display panel shown in fig. 1. The driving module 20 may mainly include a Source-driver 21, a Gate-driver 22 and a vertical driver 23, which are distributed on different sides of the tft liquid crystal panel 10 and connected to the tft liquid crystal panel 10. FIG. 4 is a schematic top view of the TFT-LCD panel 10 and the driving module 20. In the driving module 20, a Source-driver (Source-driver) 21 is located above the tft liquid crystal panel 10, and a Gate-driver (Gate-driver) 22 and a vertical driver (V-driver) 23 are respectively located at two sides of the tft liquid crystal panel 10.

Referring to fig. 5 in conjunction with fig. 1, fig. 5 is a schematic structural diagram of an embodiment of a backlight module in the liquid crystal display panel shown in fig. 1. As shown in fig. 1, in the lcd panel 1, a backlight module 30 is disposed below the driving module 20 and opposite to the lower polarizer 16 of the tft-lcd panel 10. It is understood that the lower polarizer 16 and the backlight module 30 are respectively disposed on the upper and lower sides of the driving module 20. Fig. 5 is a schematic side view of the backlight module 30, and the backlight module 30 may sequentially include a back frame 31, a lamp holder 32, a reflective plate 33, a light guide plate 34, a light collecting plate 35, a diffusion plate 36 and a heat dissipating plate 37 from top to bottom.

The liquid crystal display screen 1 for the medical CT machine may further include a screen glass plate, which is disposed above the thin film transistor liquid crystal panel 10, for viewing information displayed on the thin film transistor liquid crystal panel 10.

In order to achieve at least one of the advantages or other advantages, an embodiment of the present invention provides a display terminal, which can be used in a medical CT machine, and at least includes the aforementioned liquid crystal display screen 1 and a control circuit system for a medical CT machine. In the control circuit system, the signal control circuit supplies a digital signal, a control signal, and a clock signal to the digital IC, and supplies the control signal and the clock signal to the gate drive IC. When the positive voltage of the grid is greater than the applied voltage, the drain-source electrode is conducted; when the gate forward voltage is equal to 0 or a negative voltage, the drain-source electrode is turned off. The drain electrode is connected to the ITO pixel electrode, the source electrode is connected to a source line (column electrode), and the gate electrode is connected to a gate line (row electrode).

Based on the property that the transmittance of the liquid crystal varies depending on the magnitude of the voltage, the light becomes linearly polarized after passing through the upper polarizer 11, and the polarization direction coincides with the vibration direction of the polarizer and with the arrangement order of the liquid crystal molecules on the upper and lower glass substrates. When light passes through the liquid crystal layer 14, the linearly polarized light is split into two beams due to refraction by the liquid crystal. Since the two beams have different propagation velocities (the same phase), the vibration direction of the oscillator beam is inevitably changed when the two beams are combined. The light passing through the liquid crystal layer 14 is gradually distorted. When the light reaches the lower polarizer 16, the optical axis vibration direction thereof is twisted by 90 degrees and coincides with the vibration direction of the lower polarizer 16. Thus, the light passes through the lower polarizer 16 to form a bright field. After the application of the upper voltage, the liquid crystal material in the liquid crystal layer 14 is aligned by the electric field, and the twist disappears. At this time, the linearly polarized light passing through the upper polarizer 11 is not rotated in the liquid crystal layer 14, and cannot pass through the lower polarizer 16 to form a dark field. The visible liquid crystal does not emit light, and can display under the modulation of an external light source. During the entire display process, the liquid crystal acts as a voltage controlled light valve.

The utility model provides a liquid crystal display 1 for medical treatment CT machine, it adopts colored liquid crystal module and amorphous silicon TFT liquid crystal panel structure, pours into liquid crystal material into in the narrow gap between TFT array glass substrate and the filter glass substrate. When the TFT array as the electro-optical switch in the liquid crystal display panel 1 is controlled by a data signal in the medical CT machine, the amount of transmitted light from the backlight assembly can be adjusted. A color image can be created by adjusting the amount of transmitted light in the TFT array. Therefore, the liquid crystal display screen 1 for the medical CT machine can realize color display such as ultra-wide viewing angle, high brightness, high contrast and the like, thereby providing ultra-high definition pixel display for the medical CT machine.

Although terms such as liquid crystal display, TFT panel, driving module, backlight module, polarizer, color filter substrate, color filter, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any one of the additional limitations of the present invention.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.

Claims (9)

1. A liquid crystal display screen for a medical CT machine, comprising:

the thin film transistor liquid crystal panel sequentially comprises an upper polarizer, an array substrate, a color film substrate, a liquid crystal layer, a color filter and a lower polarizer;

the driving module is positioned below the thin film transistor liquid crystal panel and is arranged adjacent to the lower polarizer; and

the backlight module is positioned below the driving module and is arranged opposite to the lower polarizer, and sequentially comprises a back frame, a lamp holder, a reflecting plate, a light guide plate, a light collecting plate, a diffusion plate and a heat dissipation plate.

2. The lcd panel for a medical CT machine of claim 1, wherein: the thin film transistor is an amorphous silicon thin film transistor.

3. The lcd panel for a medical CT machine of claim 1, wherein: the array substrate is a thin film transistor array glass substrate.

4. The liquid crystal display panel for a medical CT machine according to claim 1, wherein: the color film substrate comprises a red, green and blue pixel array.

5. The LCD screen for medical CT machine of claim 4, wherein: the red, green and blue pixel array is at least one of a strip array, a mosaic array and a Delta array.

6. The lcd panel for a medical CT machine of claim 1, wherein: the color filter comprises red, green and blue color filter layers.

7. The lcd panel for a medical CT machine of claim 1, wherein: the color filter comprises an indium tin oxide transparent conductive film.

8. The lcd panel for a medical CT machine of claim 1, wherein: the driving module comprises a source driver, a gate driver and a vertical driver, which are distributed on different sides of the thin film transistor liquid crystal panel and connected with the thin film transistor liquid crystal panel.

9. The lcd panel for a medical CT machine of claim 1, wherein: the liquid crystal display screen comprises a screen glass plate which is arranged above the thin film transistor liquid crystal panel.

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