A liquid crystal display panel burn-in test device

Abstract

The utility model discloses a kind of liquid crystal display screen ageing test devices, including containing mechanism, recording mechanism and assembly mechanism, the containing mechanism includes ageing cabinet, two cabinet doors with the ageing cabinet swing connection, recording mechanism, the recording mechanism includes with the ageing cabinet inner bottom surface fixed connection frame, four CCD cameras respectively installed in the frame both sides, assembly mechanism, the assembly mechanism includes with the ageing cabinet inner bottom surface fixed connection guide frame. In the utility model, open two cabinet doors, staff enters ageing cabinet inside, in turn loosens bolt, by referring to ruler plate sliding sleeve, the spacing of adjacent sliding sleeve and supporting plate can be adjusted, after adjustment is completed, re-tighten bolt fixed, then, staff moves to ageing cabinet outside, along supporting plate and sequentially pushes into the display screen to be detected, the structure only needs to adjust supporting plate spacing once, the quick positioning and delivery of multiple display screens can be realized, easy to operate and efficient.

Description

Technical Field

[0001] This utility model relates to the field of display screen aging test technology, specifically to a liquid crystal display screen aging test device. Background Technology

[0002] LED displays are a type of display that uses semiconductor light-emitting diodes. These diodes are made of compounds of gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N), and indium (In). When electrons and holes recombine, they emit visible light, thus they can be used to make light-emitting diodes. They are used in circuits and instruments as indicator lights, or to form text or number displays. Gallium arsenide phosphide diodes emit red light, gallium phosphide diodes emit green light, silicon carbide diodes emit yellow light, and indium gallium nitride diodes emit blue light.

[0003] In the aging test of LCD screens, the final quality inspection still relies on manual, piece-by-piece inspection. This method is not only time-consuming but also greatly limits the improvement of overall inspection efficiency. Especially in batch testing, inspectors need to judge and record the display effect of each screen one by one, including common defects such as dead pixels, brightness uniformity, and color spots. The whole process is highly repetitive and has a heavy workload, which also means that the inspection of a single screen takes a long time, seriously reducing the efficiency of the test. Summary of the Invention

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] An aging test device for liquid crystal displays includes a container mechanism, a recording mechanism, and an assembly mechanism. The container mechanism includes an aging chamber and two doors movably connected to the aging chamber. The recording mechanism includes a frame fixed to the bottom surface of the aging chamber and four CCD cameras respectively installed on both sides of the frame. The assembly mechanism includes a guide frame fixed to the bottom surface of the aging chamber, a sliding sleeve slidably sleeved to the outside of the guide frame, a bolt screwed to the sliding sleeve, a vertical frame fixed to the top of the sliding sleeve, and a support plate installed inside the vertical frame.

[0007] By adopting the above technical solution, after opening the two chamber doors, the staff enters the aging chamber, loosens the bolts in sequence, and adjusts the distance between the adjacent sliding sleeves and the tray by sliding the sliding sleeves with reference to the ruler. After adjustment, the bolts are tightened again to fix it. Then, the staff moves to the outside of the aging chamber and pushes the display screens to be tested into place along the trays in sequence. This structure only requires one adjustment of the tray spacing to achieve rapid positioning and deployment of multiple display screens, making the operation simple and efficient.

[0008] In a preferred embodiment, the present invention can be further configured such that the two cabinet doors are arranged opposite each other and fit together.

[0009] In a preferred embodiment, this invention can be further configured as follows: four CCD cameras are connected in series, and the CCD cameras are electrically connected to an external PLC.

[0010] In a preferred embodiment, the present invention can be further configured as follows: two guide frames are located on both sides of the frame, the guide frames are composed of guide rods, rod sleeves and ruler plates, the inner end of the guide rods is fixedly connected to the inner wall of the aging chamber, the rod sleeves are sleeved on the outer end of the guide rods and fixedly connected to the inner bottom surface of the aging chamber, and the ruler plates are fixedly connected to the guide rod body.

[0011] In a preferred embodiment, the present invention can be further configured such that: the bolt is suspended at the top of the ruler plate, the bolt is T-shaped, and the bottom end is interference-fitted with the top of the ruler plate.

[0012] In a preferred embodiment, the present invention can be further configured such that: two reinforcing ribs are connected between the sliding sleeve and the vertical frame, and the two reinforcing ribs are located on both sides of the vertical frame respectively.

[0013] In a preferred embodiment, the present invention can be further configured such that: the tray is L-shaped, and a rubber pad is fixedly connected to the internal bend of the tray.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] 1. In this utility model, after opening the two boxes, the staff enters the aging box, loosens the bolts in sequence, and adjusts the distance between the adjacent sliding sleeves and the tray by sliding the sliding sleeves with reference to the ruler. After adjustment, the bolts are tightened again to fix it. Then, the staff moves to the outside of the aging box and pushes the display screens to be tested into place along the trays in sequence. This structure only requires one adjustment of the tray spacing to achieve rapid positioning and deployment of multiple display screens, which is simple and efficient to operate.

[0016] 2. In this invention, after the display screen is deployed, the cabinet door is closed, and the control system causes the display screen to play a specific test screen sequence. During this period, multiple CCD cameras record video data throughout and upload it to an external PLC for comprehensive analysis of the display screen's performance under different screen conditions: including maximum power consumption and backlight load under a full white screen, light leakage under a full black screen, and color purity and dead pixel detection under red, green, and blue primary color screens. The detection process is intelligent, improving the user experience of this device. Attached Figure Description

[0017] Figure 1 This is a left view of the overall structure of this utility model;

[0018] Figure 2This is a perspective view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the container mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the recording mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the assembly mechanism of this utility model;

[0022] Figure 6 This is a perspective view of the guide frame of this utility model.

[0023] Figure label:

[0024] 100. Container mechanism; 110. Aging chamber; 120. Chamber door;

[0025] 200. Recording mechanism; 210. Frame; 220. CCD camera;

[0026] 300. Assembly mechanism; 310. Guide frame; 311. Guide rod; 312. Rod sleeve; 313. Ruler plate; 320. Sliding sleeve; 330. Bolt; 340. Vertical frame; 350. Support plate;

[0027] 400. Reinforcing ribs;

[0028] 500, rubber pad. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0030] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0031] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a liquid crystal display screen aging test device.

[0032] Example 1:

[0033] Combination Figure 1-5 As shown, the present invention provides an aging test device for a liquid crystal display screen, including a holding mechanism 100, a recording mechanism 200 and an assembly mechanism 300. The holding mechanism 100 includes an aging chamber 110 and two chamber doors 120 movably connected to the aging chamber 110.

[0034] The recording mechanism 200 includes a frame 210 fixed to the bottom surface of the aging chamber 110 and four CCD cameras 220 respectively installed on both sides of the frame 210.

[0035] Assembly mechanism 300 includes a guide frame 310 fixedly connected to the bottom surface of the aging chamber 110, a sliding sleeve 320 slidably sleeved on the outside of the guide frame 310, a bolt 330 screwed to the sliding sleeve 320, a vertical frame 340 fixedly connected to the top of the sliding sleeve 320, and a support plate 350 installed on the inside of the vertical frame 340.

[0036] Furthermore, the two doors 120 are positioned opposite each other and fit together. With this layout design, the two doors 120 can completely seal the inlet position of the aging chamber 110.

[0037] Furthermore, four CCD cameras 220 are connected in series, and the CCD cameras 220 are electrically connected to an external PLC. With this structural design, it is convenient for the captured video data to be uniformly uploaded to the external PLC.

[0038] Furthermore, two guide frames 310 are located on both sides of the frame 210. Each guide frame 310 consists of a guide rod 311, a rod sleeve 312, and a ruler plate 313. The inner end of the guide rod 311 is fixedly connected to the inner wall of the aging chamber 110. The rod sleeve 312 is sleeved on the outer end of the guide rod 311 and fixedly connected to the inner bottom surface of the aging chamber 110. The ruler plate 313 is fixedly connected to the rod body of the guide rod 311. The structural design of the guide frame 310 ensures that the sliding sleeve 320 can slide successfully, so that the spacing adjustment of the two adjacent support plates 350 can be carried out smoothly.

[0039] Furthermore, the bolt 330 is suspended at the top of the ruler plate 313. The bolt 330 is T-shaped and its bottom end is press-fitted with the top of the ruler plate 313. The layout design of the bolt 330 ensures that it can reinforce the sliding sleeve 320 after it moves.

[0040] Example 2:

[0041] Combination Figure 2 and Figure 4 As shown, based on Embodiment 1, two reinforcing ribs 400 are connected between the sliding sleeve 320 and the vertical frame 340. The two reinforcing ribs 400 are located on both sides of the vertical frame 340. The reinforcing ribs 400 can improve the connection between the vertical frame 340 and the sliding sleeve 320.

[0042] Example 3:

[0043] Combination Figure 1 , 2 and Figure 5As shown, in the above embodiment, the tray 350 is L-shaped, and a rubber pad 500 is fixed to the internal bend of the tray 350. The rubber pad 500 can protect the bottom of the display screen and ensure the service life of the display screen.

[0044] The working principle and usage process of this utility model are as follows: When this device is put into actual use, first open the two chamber doors 120, and the staff enters the aging chamber 110. Loosen the bolts 330 in sequence, and adjust the distance between the adjacent sliding sleeves 320 and the support plate 350 by sliding the sliding sleeves 320 with reference to the ruler plate 313. After adjustment, tighten the bolts 330 again to fix it. Then, the staff moves to the outside of the aging chamber 110 and pushes the display screen to be tested in sequence along the support plate 350. This structure only requires one adjustment of the distance between the support plates 350 to realize the rapid positioning and deployment of multiple display screens. The operation is simple and efficient.

[0045] After deployment, the cabinet door 120 is closed, and the control system causes the display screen to play a specific test sequence. During this period, multiple CCD cameras 220 record video data throughout and upload it to an external PLC for comprehensive analysis of the display screen's performance under different screen conditions: including maximum power consumption and backlight load under a full white screen, light leakage under a full black screen, and color purity and dead pixel detection under red, green, and blue primary color screens.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An aging test apparatus for a liquid crystal display screen, characterized in that, include: The container (100) includes an aging chamber (110) and two doors (120) movably connected to the aging chamber (110); The recording mechanism (200) includes a frame (210) fixed to the bottom surface of the aging chamber (110) and four CCD cameras (220) respectively installed on both sides of the frame (210). Assembly mechanism (300) includes a guide frame (310) fixed to the bottom surface of the aging chamber (110), a sliding sleeve (320) slidably sleeved on the outside of the guide frame (310), a bolt (330) screwed to the sliding sleeve (320), a vertical frame (340) fixed to the top of the sliding sleeve (320), and a support plate (350) installed on the inside of the vertical frame (340).

2. The liquid crystal display screen aging test device according to claim 1, characterized in that, The two doors (120) are positioned opposite each other and fit together.

3. The liquid crystal display screen aging test device according to claim 1, characterized in that, Four CCD cameras (220) are connected in series, and the CCD cameras (220) are electrically connected to an external PLC.

4. The liquid crystal display screen aging test device according to claim 1, characterized in that, Two guide frames (310) are located on both sides of the frame (210). The guide frame (310) is composed of a guide rod (311), a rod sleeve (312) and a ruler plate (313). The inner end of the guide rod (311) is fixed to the inner wall of the aging chamber (110). The rod sleeve (312) is sleeved on the outer end of the guide rod (311) and fixed to the inner bottom surface of the aging chamber (110). The ruler plate (313) is fixed to the rod body of the guide rod (311).

5. The liquid crystal display screen aging test apparatus according to claim 4, characterized in that, The bolt (330) is suspended at the top of the ruler plate (313). The bolt (330) is T-shaped and its bottom end is press-fitted to the top of the ruler plate (313).

6. The liquid crystal display screen aging test device according to claim 1, characterized in that, Two reinforcing ribs (400) are connected between the sliding sleeve (320) and the vertical frame (340), and the two reinforcing ribs (400) are located on both sides of the vertical frame (340).

7. The liquid crystal display screen aging test device according to claim 1, characterized in that, The tray (350) is L-shaped, and a rubber pad (500) is fixed to the inner bend of the tray (350).

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