LCD test fixture

Abstract

The utility model discloses a liquid crystal display (LCD) testing jig which comprises a base and an upper cover capable of covering the base, a placing groove used for placing an LCD is formed on the base, a lower polaroid is attached to the bottom of the placing groove, a light source is arranged below the lower polaroid, a hard transparent plate is arranged on the upper cover, an upper polaroid is attached to the hard transparent plate, and the light source is arranged below the upper polaroid. When the upper cover and the base are in a covering state, the upper polaroid is located on the face, facing the containing groove, of the hard transparent plate, and the upper cover is provided with a probe assembly used for being electrically connected with the LCD. According to the utility model, due to the existence of the hard transparent plate, when the eyepiece is used for observation during testing, the hard transparent plate can well support the eyepiece, the problems of deformation and the like of the upper polaroid are avoided, and the distance between the upper polaroid and the LCD below the upper polaroid can be well adjusted by setting the thickness of the hard transparent plate; therefore, the distance between the upper polaroid and the LCD can be closer to the actual situation, and the test efficiency and the test effect can be improved.

Description

Technical Field

[0001] This utility model relates to the field of LCD testing fixture technology, and in particular to an LCD testing fixture. Background Technology

[0002] Existing test fixtures for testing LCDs (liquid crystal glass) include Figure 1 and Figure 2 The device includes a base plate 11 and a top cover 12 that are rotatably connected. The base plate 11 has a placement area for placing the LCD 13. A lower polarizer 14 is attached to the bottom of the placement area, and a light source 15 is placed below the lower polarizer 14. After the LCD 13 is placed on the placement area, the top cover 12 flips over and closes onto the base plate 11, so that the probe on the side of the top cover 12 facing the LCD 13 is electrically connected to the LCD 13. After the top cover 12 and the base plate are closed, the area 17 in the middle of the LCD display is hollowed out. A polarizer 16 is attached to the upper part of the hollowed-out area 17, so that the upper polarizer 16 is above the LCD 13. During subsequent testing, the LCD 13 needs to be observed by the human eye using an eyepiece. In the existing test fixture, since the upper polarizer 16 is suspended and its material is soft, it will deform when the eyepiece is placed on the upper polarizer 16. When the human eye observes, the human eye will also apply pressure to the eyepiece to some extent, which will cause the upper polarizer 16 to be pressed down and deformed again. When the human eye observes, the change in focal length between the eyepiece and the observed object will also make the eyepiece image unclear, inconvenient to observe, and low test efficiency.

[0003] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an LCD testing fixture.

[0005] The technical solution of this utility model is as follows: This utility model provides an LCD testing fixture, including: a base and an upper cover that can be closed on the base. The base has a placement groove for placing an LCD. A lower polarizer is attached to the bottom of the placement groove. A light source is arranged below the lower polarizer. A rigid transparent plate is arranged on the upper cover. An upper polarizer is attached to the rigid transparent plate. When the upper cover and the base are closed, the upper polarizer is located on the side of the rigid transparent plate facing the placement groove. A probe assembly for electrical connection with the LCD is provided on the upper cover.

[0006] Furthermore, the rigid transparent plate is made of glass or acrylic.

[0007] Furthermore, the base and the top cover are rotatably connected.

[0008] Furthermore, the base and the top cover are provided with matching pivot structures.

[0009] The beneficial effects of this utility model by adopting the above solution are as follows: due to the presence of the rigid transparent plate, when observing with an eyepiece during testing, the rigid transparent plate can support the eyepiece well, avoiding problems such as deformation of the upper polarizer. Furthermore, by setting the thickness of the rigid transparent plate, the distance between the upper polarizer and the LCD below can be adjusted well, so that the distance between the upper polarizer and the LCD can be closer to the actual situation, which helps to improve testing efficiency and testing results. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of an existing LCD test fixture.

[0011] Figure 2 This is a cross-sectional view of an existing LCD test fixture.

[0012] Figure 3 This is a schematic diagram of the LCD testing fixture of this utility model.

[0013] Figure 4 This is a cross-sectional view of the LCD testing fixture of this utility model. Detailed Implementation

[0014] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] Please refer to the following: Figure 3 and Figure 4 In this embodiment, the present invention provides an LCD testing fixture, including: a base 1 and an upper cover 2 that can be closed on the base 1. The base 1 has a placement groove 8 for placing an LCD 3. A lower polarizer 4 is attached to the bottom of the placement groove 8. A light source 5 is arranged below the lower polarizer 4. The LCD 3 is placed on the upper layer of the lower polarizer 4. A rigid transparent plate 7 with a certain thickness is arranged on the upper cover 2. The rigid transparent plate 7 can be an acrylic plate or a glass plate. An upper polarizer 6 is attached to the rigid transparent plate 7. When the upper cover 2 and the base 1 are closed, the upper polarizer 6 is located on the side of the rigid transparent plate 7 facing the placement groove 8. This can ensure that the LCD 3 can display normally (the light transmitted from the LCD 3 is polarized light. If it passes through the transparent plate 7 first, its polarization will be destroyed, resulting in display abnormality). It can also ensure that the upper polarizer 6 is not scratched and can also support the upper polarizer 6. The upper cover 2 is provided with a probe assembly (not shown) for electrical connection with the LCD 3.

[0016] Furthermore, the base 1 and the top cover 2 are equipped with matching rotating shaft structures, which realize the rotatable connection between the base 1 and the top cover 2. The rotatable connection method is simple and reliable, and can facilitate the placement and removal of the LCD 3 and the testing.

[0017] In summary, in this solution, the presence of the rigid transparent plate ensures that the eyepiece is well supported during testing, preventing deformation of the upper polarizer. Furthermore, by adjusting the thickness of the rigid transparent plate, the distance between the upper polarizer and the LCD below can be effectively adjusted, allowing the distance between the upper polarizer and the LCD to more closely resemble the actual situation, thus improving testing efficiency and results.

[0018] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An LCD testing fixture, characterized in that, include: The device includes a base and a top cover that can be fitted onto the base. The base has a placement slot for placing an LCD. A lower polarizer is attached to the bottom of the placement slot, and a light source is disposed below the lower polarizer. A rigid transparent plate is disposed on the top cover, and an upper polarizer is attached to the rigid transparent plate. When the top cover and the base are closed, the upper polarizer is located on the side of the rigid transparent plate facing the placement slot. The top cover is provided with a probe assembly for electrical connection with the LCD.

2. The LCD testing fixture according to claim 1, characterized in that, The rigid transparent panel is made of glass or acrylic.

3. The LCD test fixture according to claim 1 or 2, characterized in that, The base and the top cover are rotatably connected.

4. The LCD testing fixture according to claim 3, characterized in that, The base and the top cover are equipped with matching pivot structures.

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