KR100913182B1 - Jig frame for drop test of flat panel display - Google Patents

Abstract

The present invention provides a jig frame for drop test of a flat panel display that can easily determine whether the flat panel display is damaged. The jig frame for drop test of the flat panel display device according to the present invention is a base plate having a groove for accommodating the flat panel display device, a cover coupled to the base plate in a sliding manner and overlaps with the flat panel display device to fix the flat panel display device. A plate. In this case, the cover plate is formed of a transparent material.

Drop test, Jig frame, Flat panel display, Base plate, Cover plate, Guide holder, Stopper

Description

Jig frame for drop test of flat panel display {JIG FRAME FOR DROP TEST OF FLAT PANEL DISPLAY}

The present invention relates to a drop test jig frame for a flat panel display, and more particularly, to a drop test jig frame for an improved flat panel display device to easily check whether a flat panel display is damaged.

Recently, a flat panel display having a small thickness and low weight by overcoming a disadvantage of a cathode ray tube has been in the spotlight. Representative examples of such flat panel displays include organic light emitting displays and liquid crystal displays, and are widely used as display devices of mobile electronic devices such as mobile phones and personal multimedia players (PMPs).

Flat panel displays should have adequate durability for their intended use. Therefore, a flat panel display is manufactured and then tested for durability against various physical external pressures. One of these is a drop test that checks the durability of the flat panel display by installing the flat panel display on the jig frame and dropping the jig frame. There is.

In particular, when the flat panel display device is applied to a mobile electronic device, the user may drop it frequently. Therefore, the flat panel display device must have a constant mechanical strength against dropping impacts.

The conventional drop test jig frame mainly includes an inner case accommodating a flat panel display and an outer case covering the inner case, and one or more plates may be disposed between the inner case and the outer case. The plate is fixed to the inner case through several bolts, and the inner case and the outer case are also joined to each other through several bolts.

As described above, the jig frame coupled with the bolt fastening is used for the drop test apart from the set height. After the drop test, the inner case and the outer case are disassembled by disassembling the bolt to visually check whether the flat panel display device is damaged.

However, the above-described jig frame is weak in durability, the bolt coupling part can be easily broken, and since the dozens of bolts must be disassembled after each drop test, a considerable time is required for the drop test. In addition, since the bolt tightening force is different for each operator, causing the dispersion of the jig frame to act as a factor to reduce the reliability of the drop test.

Furthermore, since the conventional jig frame is formed of an opaque material and cannot identify the flat panel display device therein, there is an inconvenience that the operator can check whether the flat panel display device is damaged after disassembling the jig frame.

The present invention can easily determine whether the flat panel display is damaged without disassembling the jig frame, eliminates inconvenience caused by the use of bolts, and the jig frame for the drop test of the flat panel display device that can shorten the drop test time To provide.

The jig frame for drop test of the flat panel display device according to an embodiment of the present invention is coupled to the base plate having a groove for accommodating the flat panel display device, the slide plate is coupled to the base plate, overlapping the flat panel display device It includes a cover plate for fixing. In this case, the cover plate is formed of a transparent material.

The base plate and the cover plate may be formed of a synthetic resin material.

The base plate may be formed in a rectangular shape, and may form an opening area through which the cover plate may enter at the edge of one of the four edges, and may form a guide holder overlapping the edge of the cover plate at the remaining three edges. have.

The guide holder may be positioned at a height greater than the thickness of the cover plate from the base plate. The base plate may form a stop projection in contact with the side of the cover plate at the center of the opening area.

The cover plate may form an opening to expose a portion of the flat panel display. The opening of the cover plate may be formed to have the same size as the display area at a position corresponding to the display area of the flat panel display.

Grooves of the base plate may be formed on the upper and lower surfaces of the base plate, respectively, and a pair of cover plates may be provided to be coupled to the upper and lower surfaces of the base plate in a slide manner.

As the jig frame according to the present invention adopts a structure that is coupled in a sliding manner without using bolts, the time required for assembling and disassembling the jig frame can be shortened, thereby reducing the time required to replace the flat panel display after the drop test. have.

In addition, the jig frame according to the present invention can immediately determine whether the flat panel display is damaged without disassembling the jig frame in the drop test process due to the transparent material of the cover plate. Therefore, the time required to check whether the flat panel display is damaged after the drop test can be shortened.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

1 is an exploded perspective view of a jig frame for drop test of a flat panel display device according to a first embodiment of the present invention, FIG. 2 is a perspective view of the coupled state of FIG. 1, and FIG. 3 is a cutaway view taken along line II of FIG. 2. Sectional view of the jig frame.

1 to 3, the drop test jig frame 101 of the present embodiment includes a base plate 16 having a groove 14 for accommodating the flat panel display 12, and a base plate 16. It includes a cover plate 18 that is fitted in a slide manner and coupled to overlap with the flat panel display 12 to fix it.

The base plate 16 and the cover plate 18 may be formed in a rectangular shape having a pair of long sides and a pair of short sides, and may be formed of a synthetic resin material which is easier to deform than metal. The groove 14 for accommodating the flat panel display 12 is positioned at the center of the base plate 16 and is formed to have a slightly larger area than the flat panel display 12 to facilitate storage and separation of the flat panel display 12. do.

The base plate 16 forms an opening area 161 through which the cover plate 18 can enter at the edge of one side, and has a predetermined height H from the base plate 16 along the edges of the other three sides. Guide holder 20 positioned at the position thereof.

The height H of the guide holder 20 is made slightly larger than the thickness of the cover plate 18 in consideration of the allowance for movement of the cover plate 18. The guide holder 20 overlaps the edge of the cover plate 18, and the cover plate 18 is sandwiched between the base plate 16 and the guide holder 20 to be fastened to the base plate 16 in a sliding manner.

1 and 2 illustrate the structure in which the opening region 161 is formed at the lower short side of the base plate 16, and the guide holder 20 is formed along the left and right long sides and the upper short side of the base plate 16. Position and shape of the guide holder 20 is not limited to the illustrated example, it can be variously modified.

In addition, the base plate 16 may form a stop protrusion 22 having a predetermined height in the center of the opening region 161 to which the cover plate 18 is fitted. The stop projection 22 contacts the side surface of the cover plate 18 fitted to the base plate 16 to fix the position of the cover plate 18. Therefore, the cover plate 18 can be prevented from being separated from the base plate 16 in the drop test process.

The height of the stop projection 22 may be formed to be equal to or smaller than the thickness of the cover plate 18. In the drawings, as an example, the stop protrusion 22 is formed to have a thickness smaller than that of the cover plate 18. The shape of the stop projection 22 is not limited to the example shown in figure, If it is a shape which can prevent the cover plate 18 from leaving easily, it is variously applicable.

The cover plate 18 is formed of a transparent synthetic resin material, for example, may be made of a polycarbonate (PC) material. As the cover plate 18 is formed of a transparent material, the operator can always visually check the flat panel display 12 mounted on the jig frame 101.

The flat panel display device 12 fixed to the jig frame 101 may be an organic light emitting display device. 4 is an exploded perspective view of an organic light emitting display device.

Referring to FIG. 4, the organic light emitting diode display 121 may include a panel assembly in which a first substrate 24 and a second substrate 26 are joined by a sealant to form organic light emitting diodes in the display area A10. 28 and a bezel 30 coupled with the panel assembly 28 at the rear of the panel assembly 28. The bezel 30 may be omitted in the drop test process.

Subpixels are arranged in a matrix form in the display area A10 of the first substrate 24, and pad electrodes for transmitting an electrical signal to the subpixels are disposed in the pad area A20 of the first substrate 24. In FIG. 4, reference numeral 32 denotes an integrated circuit chip attached to the pad region A20 in a chip on glass (COG) manner.

The bezel 30 has a bottom portion 34 on which the panel assembly 28 is raised and a sidewall 36 extending from the edge of the bottom portion 34 toward the panel assembly 28 and contacting the sides of the panel assembly 28. ). A double sided tape (not shown) may be located between the bottom 34 and the panel assembly 28, and the bezel 30 is fixed with the panel assembly 28 to support the panel assembly 28.

FIG. 5 is a schematic view showing the dropping direction of the jig frame shown in FIG. 2.

Referring to FIG. 5, the jig frame 101 having the above-described structure has six directions (up to first, up, down, left and right) at a height (for example, 1.5 m) set for one flat panel display device 12. And falling down in the sixth direction) to test whether the flat panel display 12 is broken. The drop test is repeated three or more times.

1 to 3 again, in the jig frame 101 of the present embodiment, the cover plate 18 and the base plate 16 are coupled to each other in a slide manner without using bolts to fix the flat panel display 12. Accordingly, the coupling and disassembly of the cover plate 18 and the base plate 16 can be easily performed, thereby reducing the time required to replace the flat panel display 12.

In addition, in the jig frame 101 of the present exemplary embodiment, the transparent material of the cover plate 18 may immediately determine whether the flat panel display 12 is damaged without disassembling the jig frame 101 during the drop test process. Therefore, it is possible to shorten the time required to check whether the flat panel display 12 is damaged in the drop test process.

FIG. 6 is an exploded perspective view of a jig frame for drop tests of a flat panel display according to a second exemplary embodiment of the present invention, and FIG. 7 is a view illustrating a coupling state of the jig frame illustrated in FIG. 6 based on the line II-II of FIG. 6. It is an incision section.

6 and 7, the jig frame 102 of the present exemplary embodiment has the same structure as the first exemplary embodiment except for the structure in which the opening 181 is formed in the cover plate 18. The same reference numerals are used for the same members as in the first embodiment.

The opening 181 of the cover plate 18 may be formed to have the same size as the display area A10 at a position corresponding to the display area A10 of the flat panel display 12.

In the above-described first embodiment, it may be difficult to precisely check the fine cracks of the flat panel display 12 due to the reflection of external light of the cover plate 18. However, in the jig frame 102 of the present embodiment, the cover plate 18 The minute cracks of the flat panel display 12 may be accurately checked through the opening 181 of the flat panel display 12.

FIG. 8 is an exploded perspective view of a jig frame for drop tests of a flat panel display according to a third exemplary embodiment of the present invention, and FIG. 9 is a view illustrating a coupling state of the jig frame illustrated in FIG. 8 based on the III-III line of FIG. 8. It is an incision section.

8 and 9, the jig frame 103 according to the present embodiment has grooves 14 ′ for accommodating the flat panel display 12 on the upper and lower surfaces of the base plate 16 ′, respectively. The guide holder 20 'is formed on the lower surface and the same as the first embodiment except for the structure in which the pair of cover plates 18' are coupled to the upper and lower surfaces of the base plate 16 'in a sliding manner. Made of structure.

The opening region 161 ′ of the upper surface of the base plate 16 ′ and the opening region 161 ′ of the lower surface of the base plate 16 ′ may be located in opposite directions. That is, when the opening region 161 ′ is formed on the lower short side of the upper surface of the base plate 16, the opening region 161 ′ may be formed on the upper short side of the lower surface of the base plate 16. The symmetrical structure of the jig frame 103 may prevent the weight of the jig frame 103 from being concentrated in one direction by dispersing the weight of the jig frame 103.

As the two flat panel display devices 12 are provided in one jig frame 103 as described above, in the jig frame 103 of the present embodiment, the two flat panel display devices 12 can be drop-tested simultaneously. It can be shortened more effectively.

FIG. 10 is an exploded perspective view of a jig frame for drop test of a flat panel display according to a fourth exemplary embodiment of the present invention, and FIG. 11 is a view illustrating a coupling state of the jig frame illustrated in FIG. 10 based on line IV-IV of FIG. 10. It is an incision section.

10 and 11, the jig frame 104 of the present embodiment has the same structure as the above-described third embodiment except that the opening 181 ′ is formed in the pair of cover plates 18 ′. Is done. The same reference numerals are used for the same members as in the third embodiment. Since the shape and function of the opening 181 'formed in the cover plate 18' are the same as in the second embodiment, detailed description thereof will be omitted.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the range of.

1 is an exploded perspective view of a jig frame for drop tests of a flat panel display according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a coupled state of the jig frame illustrated in FIG. 1.

FIG. 3 is a cross-sectional view of the jig frame cut along the line I-I of FIG. 2.

4 is an exploded perspective view of an organic light emitting display device.

FIG. 5 is a schematic view showing a drop direction of the jig frame shown in FIG. 2 in a drop test process. FIG.

6 is an exploded perspective view of a jig frame for drop tests of a flat panel display according to a second exemplary embodiment of the present invention.

FIG. 7 is a cross-sectional view of the jig frame illustrated in FIG. 6 taken along line II-II of FIG. 6.

8 is an exploded perspective view of a jig frame for drop tests of a flat panel display according to a third exemplary embodiment of the present invention.

FIG. 9 is a cross-sectional view of the jig frame illustrated in FIG. 8 taken along line III-III of FIG. 8.

10 is an exploded perspective view of a jig frame for drop tests of a flat panel display according to a fourth exemplary embodiment of the present invention.

FIG. 11 is a cross-sectional view of the jig frame illustrated in FIG. 10 taken along the line IV-IV of FIG. 10.

Claims (9)

A base plate having a groove for accommodating a flat panel display; And A cover plate fitted to the base plate by a slide method and overlapping the flat plate display device to fix the flat plate display device. Including, The cover plate is formed of a transparent material, The base plate is formed in a rectangular shape, and forms an opening region through which the cover plate can enter at one of four edges, and a guide holder overlapping the edge of the cover plate at the other three edges. Jig frame for drop test of flat panel display. The method of claim 1, A jig frame for drop test of a flat panel display device wherein the base plate and the cover plate are made of a synthetic resin material. delete The method of claim 1, The guide holder is positioned at a height from the base plate, jig frame for drop test of the flat panel display device having a height greater than the thickness of the cover plate. The method of claim 1, The jig frame for drop test of a flat panel display device, wherein the base plate forms a stop protrusion in the center of the opening area in contact with a side surface of the cover plate. The method of claim 1, A drop test jig frame of the flat panel display device, wherein the cover plate forms an opening to expose a portion of the flat panel display device. The method of claim 6, The jig frame for drop testing of the flat panel display device, wherein the opening of the cover plate has the same size as the display area at a position corresponding to the display area of the flat panel display device. The method according to any one of claims 1, 2 and 4 to 7, The grooves are formed on the upper and lower surfaces of the base plate, respectively The cover plate is provided with a pair of jig frame for drop test of the flat panel display device which is fitted to each of the upper and lower surfaces of the base plate by a slide method. A base plate having a groove for accommodating a flat panel display; And A cover plate fitted to the base plate by a slide method and overlapping the flat plate display device to fix the flat plate display device. Including, The cover plate is formed of a transparent material, A jig frame for drop test of a flat panel display device wherein the base plate and the cover plate are made of a synthetic resin material.

Images