Display module light leakage detection fixture

Abstract

The utility model discloses a display module light leakage detection fixture, including a carrier plate, a positioning assembly and a light shielding detection assembly, a positioning detection area is arranged on the carrier plate, the positioning assembly includes a first positioning block and a second positioning block, the first positioning block and the second positioning block are respectively arranged on both sides of the positioning detection area; the light shielding detection assembly includes a detection reflector and a light shielding member, the detection reflector and the light shielding member are respectively arranged on one side of the positioning detection area, and the position of the detection reflector corresponds to the position of the light sensing hole on the display module, and the light shielding member is used to shield the area of ​​the display module where the light shielding paper is not affixed. In this way, when there is light leakage at the position where the light shielding paper is affixed at the lower end of the light sensing hole, the leakage light will be refracted onto the detection reflector, and the human eye can directly observe the detection reflector to distinguish whether there is a light leakage problem, so as to improve production efficiency; in addition, by setting the light shielding member, the area of ​​the display module where the light shielding paper is not affixed is shaded to avoid affecting the detection.

Description

Technical Field

[0001] The utility model relates to the technical field of display module production, in particular to a display module light leakage detection fixture. Background Art

[0002] At present, the cover plate of the display module is equipped with a light-sensing hole, which is mainly used to sense the intensity of ambient light and adjust the screen brightness. Therefore, in order to prevent the light emitted by the backlight and the display glass from affecting the operation of the light-sensing hole sensing device, the existing solution is to stick a piece of black light-shielding tape on the top of the backlight to cover the light source at the bottom of the light-sensing hole. Since there will be a certain deviation when sticking the light-shielding paper, if there is a gap between the light-shielding paper and the cover plate, there will be light leakage and affect the light-sensing hole (see Figure 4 As shown in the figure, point A is the light leakage point). In order to prevent light-leaking products from flowing out to the customer end, the light leakage at this position will be detected before shipment. Currently, it is usually necessary to manually pick up the module to observe the light leakage at the top, which affects production efficiency. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a display module light leakage detection fixture, thereby improving production efficiency.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A display module light leakage detection fixture comprises: a carrying plate, a positioning assembly and a shading detection assembly, wherein a positioning detection area is provided on the carrying plate, and the display module is placed on the positioning detection area, and the positioning assembly comprises a first positioning block and a second positioning block, wherein the first positioning block and the second positioning block are respectively arranged on both sides of the positioning detection area, and the first positioning block and the second positioning block are used to hold and limit both sides of the display module; the shading detection assembly comprises a detection reflector and a shading member, wherein the detection reflector and the shading member are respectively arranged on one side of the positioning detection area, and the position of the detection reflector corresponds to the position of a light sensing hole on the display module, and the shading member is used to block the area of ​​the display module where no shading paper is affixed.

[0006] In one embodiment, the supporting board is a bakelite supporting board.

[0007] In one embodiment, a first avoidance groove is formed on the first positioning block.

[0008] In one embodiment, a second avoidance groove is formed on the second positioning block.

[0009] In one embodiment, the positioning assembly further includes a third positioning block, which is located on one side of the positioning detection area and between the first positioning block and the second positioning block, and is used to support and limit the lower end of the display module.

[0010] In one embodiment, the shading member includes a first shading pad and a second shading pad, the first shading pad and the second shading pad are respectively arranged on one side of the positioning detection area, and the first shading pad and the second shading pad are respectively located on both sides of the detection reflector, and the first shading pad and the second shading pad are respectively used to block the area of ​​the display module where no shading paper is affixed.

[0011] In one embodiment, the first light-shielding pad is a black silicone pad.

[0012] In one embodiment, the first light-shielding pad is a black light-shielding foam pad.

[0013] In one embodiment, the second light-shielding pad is a black silicone pad.

[0014] In one embodiment, the second light-shielding pad is a black light-shielding foam pad.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] The display module light leakage detection fixture of the utility model is equipped with a carrier plate, a positioning component and a shading detection component, so that the positioning operation of the display module can be realized through the first positioning block and the second positioning block. At the same time, a detection reflector is arranged in the area corresponding to the position of the light sensing hole. When there is light leakage at the position where the shading paper is pasted at the lower end of the light sensing hole, the leakage light will be refracted onto the detection reflector. The human eye can directly observe the detection reflector to distinguish whether there is a light leakage problem, so as to improve production efficiency. In addition, by arranging a shading component, the area of ​​the display module where the shading paper is not pasted is shaded to avoid affecting the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0018] Figure 1 It is a structural schematic diagram of a display module light leakage detection fixture in one embodiment of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the front view structure of the display module light leakage detection fixture;

[0020] Figure 3 for Figure 1 A schematic diagram of the front view structure of a display module light leakage detection fixture in which a display module is placed;

[0021] Figure 4 for Figure 1 A schematic diagram of a side view structure of a display module light leakage detection fixture in which a display module is placed; DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0023] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a display module light leakage detection fixture 10 includes: a carrier plate 100, a positioning assembly 200 and a shading detection assembly 300, a positioning detection area is provided on the carrier plate 100, a display module 20 is placed on the positioning detection area, the positioning assembly 200 includes a first positioning block 210 and a second positioning block 220, the first positioning block 210 and the second positioning block 220 are respectively provided on both sides of the positioning detection area, the first positioning block 210 and the second positioning block 220 are used to hold and limit both sides of the display module 20; the shading detection assembly 300 includes a detection reflector 310 and a shading member 320, the detection reflector 310 and the shading member 320 are respectively provided on one side of the positioning detection area, and the position of the detection reflector 310 corresponds to the position of the light sensing hole 21 on the display module 20, and the shading member 320 is used to block the area of ​​the display module 20 where the shading paper 22 is not affixed.

[0024] It should be noted that the first positioning block 210 and the second positioning block 220 are respectively located on both sides of the positioning detection area. When the display module 20 is placed on the positioning detection area, the first positioning block 210 and the second positioning block 220 are used to limit and support the two sides of the display module to avoid the display module 20 from being offset. Furthermore, by setting a detection reflector 310 in the area corresponding to the position of the photosensitive hole 21, when there is light leakage at the position where the shading paper 22 is attached to the lower end of the photosensitive hole 21 (light leakage point at A), the leaked light will be refracted onto the detection reflector 310, and the human eye can directly observe the detection reflector 310 to determine whether there is a light leakage problem. In this way, there is no need to pick up the display module 20 for inspection, thereby improving production efficiency. In addition, by setting the shading member 320, the area of ​​the display module 20 where the shading paper 22 is not attached is shaded, thereby avoiding the light in the non-detection area from affecting the detection operation, thereby ensuring the accuracy of the detection result.

[0025] It should also be noted that the reflective mirror surface of the detection reflector 310 is tilted relative to the carrier plate 100 to facilitate the reflection of light and facilitate observation by the operator. For example, the tilt angle is 45°. In addition, since the display module needs to be lit up to detect light leakage, improvements can be made on the basis of the original electrical testing fixture so that the electrical testing fixture has the function of electrical testing and the function of detecting light leakage.

[0026] Furthermore, the carrier board 100 is a bakelite carrier board. The bakelite material has excellent insulation performance, is non-conductive and not prone to static electricity, so it can avoid damage to the display module.

[0027] In one embodiment, a first avoidance groove 211 is formed on the first positioning block 210 . The first avoidance groove 211 avoids the operator's hand, so that the display module 20 can be easily taken.

[0028] Similarly, a second avoidance groove 221 is formed on the second positioning block 220 . The second avoidance groove 221 avoids the operator's hand, thereby facilitating the taking of the display module 20 .

[0029] Furthermore, the first positioning block 210 and the second positioning block 220 may be buffer rubber blocks, so as to avoid damage to the display module 20 due to excessive hardness of the material.

[0030] In one embodiment, the positioning assembly 200 further includes a third positioning block 230 , which is located at one side of the positioning detection area and between the first positioning block 210 and the second positioning block 220 . The third positioning block 230 is used to hold and limit the lower end of the display module 20 .

[0031] It should be noted that when the display module 20 is placed on the positioning detection area, the two sides of the display module are limited by the first positioning block 210 and the second positioning block 220, and the lower end of the display module is further supported and limited by the third positioning block 230 to prevent the display module 20 from positional displacement.

[0032] In one embodiment, the light shielding member 320 includes a first light shielding pad 321 and a second light shielding pad 322, which are respectively arranged on one side of the positioning detection area, and the first light shielding pad 321 and the second light shielding pad 322 are respectively located on both sides of the detection reflector 310, and the first light shielding pad 321 and the second light shielding pad 322 are respectively used to shield the area of ​​the display module 20 where the light shielding paper 22 is not affixed. After the display module is placed in the positioning detection area and lit up, the light leakage in the area without the light shielding paper (i.e., the non-detection area) is shielded by the first light shielding pad 321 and the second light shielding pad 322, thereby preventing the light leakage in the non-detection area from affecting the light leakage detection in the detection area.

[0033] Preferably, the first light shielding pad 321 is a black silicone pad. The black silicone pad has good light shielding performance to ensure the light shielding effect. At the same time, the silicone has a certain elasticity, which can reduce the risk of the display module being squeezed and damaged.

[0034] Similarly, preferably, the first light shielding pad 322 is a black light shielding foam pad. The black light shielding foam has good light shielding performance to ensure the light shielding effect. At the same time, the foam has a certain elasticity, which can reduce the risk of the display module being squeezed and damaged.

[0035] Similarly, preferably, the second light shielding pad 322 is a black silicone pad.

[0036] Similarly, preferably, the second light-shielding pad 322 is a black light-shielding foam pad.

[0037] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A display module light leakage detection fixture, characterized in that: include: A carrying plate, wherein a positioning detection area is provided on the carrying plate, and the display module is placed on the positioning detection area; A positioning assembly, the positioning assembly comprising a first positioning block and a second positioning block, the first positioning block and the second positioning block are respectively arranged on both sides of the positioning detection area, and the first positioning block and the second positioning block are used to hold and limit both sides of the display module; and A shading detection component, the shading detection component includes a detection reflector and a shading member, the detection reflector and the shading member are respectively arranged on one side of the positioning detection area, and the position of the detection reflector corresponds to the position of the light sensing hole on the display module, and the shading member is used to block the area of ​​the display module where no shading paper is affixed.

2. The display module light leakage detection fixture according to claim 1, characterized in that: The bearing plate is a bakelite bearing plate.

3. The display module light leakage detection fixture according to claim 1, characterized in that: The first positioning block is provided with a first avoidance groove.

4. The display module light leakage detection fixture according to claim 1, characterized in that: The second positioning block is provided with a second avoidance groove.

5. The display module light leakage detection fixture according to claim 1, characterized in that: The positioning assembly also includes a third positioning block, which is located at one side of the positioning detection area and between the first positioning block and the second positioning block, and is used to hold and limit the lower end of the display module.

6. The display module light leakage detection fixture according to claim 1, characterized in that: The shading member includes a first shading pad and a second shading pad, the first shading pad and the second shading pad are respectively arranged on one side of the positioning detection area, and the first shading pad and the second shading pad are respectively located on both sides of the detection reflector, the first shading pad and the second shading pad are respectively used to block the area of ​​the display module where no shading paper is affixed.

7. The display module light leakage detection fixture according to claim 6, characterized in that: The first light-shielding pad is a black silicone pad.

8. The display module light leakage detection fixture according to claim 6, characterized in that: The first light-shielding pad is a black light-shielding foam pad.

9. The display module light leakage detection fixture according to claim 6, characterized in that: The second light-shielding pad is a black silicone pad.

10. The display module light leakage detection fixture according to claim 6, characterized in that: The second light-shielding pad is a black light-shielding foam pad.

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