OC testing device for assembling computer display screen

Abstract

The utility model discloses a computer display screen assembles with OC testing arrangement, including test box and bearing fixture, install LVDS screen testing appearance, power adapter and booster board on the test box, the bearing fixture is by the limit horizontal bar, limit vertical bar no.

Description

Technical Field

[0001] This utility model relates to the field of LCD production and testing technology, and in particular to an OC testing device for assembling computer displays. Background Technology

[0002] In the LCD production process, testing the OC (Optical Center) is a key step in inspecting screen quality (such as bright spots, dark spots, bright lines, screen distortion, etc.). The existing testing method usually involves placing the OC directly on the test bench and then connecting the test equipment, such as LVDS test box, boost board, power adapter, etc., to the OC through temporary connection cables.

[0003] However, the glass substrate and the precision PCB attached to it on the OC are very fragile. They lack effective and stable fixation and protection on the test platform and are easily damaged during operation due to collision, sliding or improper placement. Furthermore, the PCB of the OC is completely exposed after being powered on. If it accidentally comes into contact with metal tools or a table, it is very easy to cause a short circuit, resulting in component burnout and posing a safety hazard.

[0004] To address this issue, we propose an OC testing device for computer display assembly. Utility Model Content

[0005] The purpose of this invention is to provide an OC testing device for assembling computer displays, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An OC testing device for assembling computer displays includes a test box and a support fixture. The test box is equipped with an LVDS screen tester, a power adapter, and a booster plate. The support fixture is composed of a limiting horizontal bar, a limiting vertical bar one, and a limiting vertical bar two forming an inverted U-shaped structure. Each of the limiting horizontal bar, the limiting vertical bar one, and the limiting vertical bar two has a sliding groove inside. The limiting vertical bar one and the limiting vertical bar two are slidably connected to a slide frame. The test box is fixed to one end of the slide frame. An insulating cover plate that can be rotated to open / close is installed on the slide frame. A support block for holding the closed insulating cover plate is provided at the lower edge of the inner top of the slide frame, and an inclined baffle for blocking the open insulating cover plate is installed at the rear edge of the slide frame.

[0008] In a further embodiment, the limiting horizontal bar, limiting vertical bar one and limiting vertical bar two have the same cross-sectional structure, mainly composed of mutually perpendicular vertical plate parts and flat plate parts, with a groove opened on the vertical plate part, and an outwardly expanding inclined plate part provided on the upper edge of the vertical plate part.

[0009] In a further embodiment, the inner surfaces of the upright plate, the flat plate, and the inclined plate are all connected to flexible buffer pads.

[0010] In a further embodiment, a sliding rod is fixed at one end of the second limiting longitudinal bar near the limiting transverse bar. The sliding rod passes through the groove of the limiting transverse bar, and a locking nut is threaded to one end of the sliding rod that extends out of the groove.

[0011] In a further embodiment, the carriage consists of a U-shaped slide bar and a U-shaped slide sleeve that are slidably fitted together.

[0012] In a further embodiment, the insulating cover plate is composed of a core plate and a sleeve plate that slide together, and the extension and retraction directions of the core plate and the sleeve plate are consistent with the extension and retraction directions of the U-shaped slide bar and the U-shaped sleeve.

[0013] In a further embodiment, rotating rods are fixed to the opposite end faces of the core plate and the sleeve plate, and the rotating rods are rotatably connected to the slide.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention provides stable support for the OC to be tested through a support fixture, making it less likely to be accidentally touched and slipped during circuit connection. The LVDS tester, power adapter, and boost board are integrated into the test box and linked with the support fixture through a slide to ensure neat circuit. The design of the insulating cover plate can cover the circuit part of the OC during testing, effectively preventing short circuits and accidental contact, and improving operational safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the left front view structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the right front view structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the left rear view structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the assembly structure of the carriage and insulating cover plate of this utility model;

[0020] Figure 5 This is a partial structural diagram of the limiting horizontal / vertical strips of this utility model.

[0021] In the diagram: 1. Test box; 2. LVDS screen tester; 3. Power adapter; 4. Boost plate; 5. Limiting horizontal bar; 6. Limiting vertical bar one; 7. Limiting vertical bar two; 71. Slide rod; 72. Locking nut; 8. Slide groove; 9. Slide frame; 91. U-shaped slide bar; 92. U-shaped slide sleeve; 10. Insulating cover plate; 101. Core board; 102. Sleeve plate; 103. Rotating rod; 11. Support block; 12. Stop frame; 13. Caster wheel; 14. Vertical plate; 15. Flat plate; 16. Inclined plate; 17. Flexible buffer pad. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5An OC testing device for assembling computer displays mainly consists of two parts: a test box 1 and a support fixture. The test box 1 serves as an integrated platform, with the core components required for testing fixedly installed inside: an LVDS screen tester 2, a power adapter 3, and a boost converter 4. The LVDS screen tester 2 can be a general-purpose T-80S test box, and its screen is used to display test signals and menus. The tester is equipped with function buttons, including a power switch, a mode switch, and screen parameter adjustment buttons. The power adapter 3 is a desktop power supply that can switch between 12V and 24V outputs. These components are properly connected through internal wiring. Externally, only two cables need to be led out for connection to the OC: one is an LVDS dual 8-pin screen cable with a standard 30-pin LVDS interface; the other is a backlight power cable with a female connector at the end that matches the output terminals of the boost converter 4.

[0026] The main body of the support fixture is an inverted U-shaped frame consisting of a limiting horizontal bar 5, a limiting vertical bar 1 6, and a limiting vertical bar 2 7. The limiting vertical bar 1 6 is fixedly connected to the limiting horizontal bar 5, and the limiting vertical bar 2 7 is inserted into the sliding groove 8 of the limiting horizontal bar 5 through the sliding rod 71 at its end. By tightening the locking nut 72, the limiting vertical bar 2 7 can be locked in the required position, thereby adapting to OCs of different widths.

[0027] All the limiting strips have the same cross-sectional structure, mainly composed of mutually perpendicular vertical plate parts 14 and flat plate parts 15. The vertical plate parts 14 are used to limit the side of the OC, and the flat plate parts 15 are used to support and carry the OC. The sliding groove 8 is opened on the vertical plate parts 14. The vertical plate parts 14 have an outwardly expanding inclined plate part 16 on the upper edge for guiding, which facilitates quick positioning and placement of the OC into the frame. The inner sides of the vertical plate parts 14, flat plate parts 15 and inclined plate parts 16 are all covered with flexible buffer pads 17 to protect the OC. The flexible buffer pads 17 can be made of silicone or rubber.

[0028] A retractable slide 9 is slidably connected between the first limiting longitudinal bar 6 and the second limiting longitudinal bar 7. The slide 9 is formed by the sliding connection of a U-shaped slide bar 91 and a U-shaped slide sleeve 92, which are locked by bolts. The overall length is adjustable. The U-shaped slide bar 91 and the U-shaped slide sleeve 92 pass through the slide grooves 8 of the first limiting longitudinal bar 6 and the second limiting longitudinal bar 7, respectively. The test box 1 is fixed to one end of the slide 9. Universal casters 13 are installed at the four corners of the bottom of the test box 1 to facilitate the movement of the test box 1 with the slide 9. An insulating cover plate 10 is also provided. The insulating cover 10 is rotatably connected to the slide 9 via the rotating rods 103 at both ends, allowing it to be flipped up or closed down. The insulating cover 10 itself is composed of a core plate 101 and a sleeve plate 102 that are slidably connected and locked by bolts. Its length is adjustable. When the insulating cover 10 is closed, its edge rests on the support block 11 at the top inside the slide 9, maintaining stability. When it needs to be opened, it can be flipped up until it is blocked by the inclined stop 12 at the rear edge of the slide 9, thus maintaining a stable open state and facilitating OC loading and unloading.

[0029] Workflow: Based on the dimensions of the OC to be tested, loosen the locking nut 72, slide the limiting longitudinal bar 7 to adjust the width of the fixture, and then tighten it. Simultaneously, pull the slide 9 and insulating cover 10 to extend or retract to the appropriate length. Push the slide 9, along with the test chamber 1 and insulating cover 10, towards the front of the fixture, leaving sufficient operating space. Carefully place the OC into the inverted U-shaped fixture frame, ensuring its edges are supported and limited by the flexible buffer pad 17. Then push the slide 9 back, bringing it closer to the OC. Open the insulating cover 10, allowing the precision PCB board on the OC to be supported. Place the LVDS screen cable and backlight cable from the test box 1 on the bottom surface of the slide 9, connect them to the interface of the OC, and cover it with the insulating cover 10 so that it rests stably on the support block 11. At this time, the insulating cover 10 covers the circuit part of the OC. Turn on the power switch of the LVDS screen tester 2 on the test box 1, select the correct voltage, set the screen parameters, and then switch the test screen to check for defects. After the test is completed, turn off the power, open the insulating cover 10 and place it against the inclined bracket 12, disconnect the cable connected to the OC, and take the OC out of the fixture.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An OC testing device for assembling computer display screen, comprising a testing box (1) and a bearing fixture, characterized in that: The test box (1) is equipped with an LVDS screen tester (2), a power adapter (3) and a booster plate (4). The bearing fixture is composed of a U-shaped structure consisting of a limiting horizontal bar (5), a limiting vertical bar one (6) and a limiting vertical bar two (7). The limiting horizontal bar (5), the limiting vertical bar one (6) and the limiting vertical bar two (7) are all provided with sliding grooves (8). The limiting vertical bar one (6) and the limiting vertical bar two (7) are slidably connected to a slide frame (9). The test box (1) is fixed to one end of the slide frame (9). The slide frame (9) is equipped with an insulating cover plate (10) that can be rotated to open / close. The lower edge of the inner top of the slide frame (9) is provided with a support block (11) that supports the closed insulating cover plate (10). The rear edge of the slide frame (9) is equipped with an inclined baffle (12) that blocks the open insulating cover plate (10).

2. The OC testing device for assembling computer display screen according to claim 1, characterized in that: The cross-sectional structures of the limiting horizontal bar (5), limiting vertical bar one (6) and limiting vertical bar two (7) are the same, mainly composed of mutually perpendicular vertical plate part (14) and flat plate part (15). The sliding groove (8) is opened on the vertical plate part (14), and the vertical plate part (14) is provided with an outwardly expanding inclined plate part (16) along the upper edge.

3. The OC testing device for assembling computer display screen according to claim 1, characterized in that: The inner surfaces of the upright plate (14), the flat plate (15), and the inclined plate (16) are all connected to flexible buffer pads (17).

4. The OC testing device for assembling computer display screen according to claim 1, characterized in that: The second limiting bar (7) is fixed with a sliding rod (71) at one end near the limiting horizontal bar (5). The sliding rod (71) passes through the groove (8) of the limiting horizontal bar (5), and a locking nut (72) is threaded to one end of the sliding rod (71) that passes through the groove (8).

5. The OC testing device for assembling computer display screen according to claim 1, characterized in that: The slide (9) consists of a U-shaped slide bar (91) and a U-shaped slide sleeve (92) that slide together.

6. The OC testing device for assembling computer display screen according to claim 5, characterized in that: The insulating cover plate (10) is composed of a core plate (101) and a sleeve plate (102) that slide together, and the extension and retraction directions of the core plate (101) and the sleeve plate (102) are consistent with the extension and retraction directions of the U-shaped slide bar (91) and the U-shaped slide sleeve (92).

7. The OC testing device for assembling computer display screen according to claim 6, characterized in that: The opposite end faces of the core plate (101) and the sleeve plate (102) are both fixed with rotating rods (103), and the rotating rods (103) are rotatably connected to the slide (9).

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