CN219266727U

CN219266727U - Liquid crystal display testing device

Info

Publication number: CN219266727U
Application number: CN202320866918.9U
Authority: CN
Inventors: 黄小剑; 马林练
Original assignee: Shenzhen Saimaite Electronic Technology Co ltd
Current assignee: Shenzhen Saimaite Electronic Technology Co ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-06-27
Anticipated expiration: 2033-04-18

Abstract

The utility model provides a liquid crystal display testing device, which relates to the technical field of display screens and comprises a testing box main body, wherein the testing box main body is fixedly connected with a placing table, and the placing table is fixedly connected with a first electro-hydraulic push rod. According to the utility model, the first screw rod is driven to rotate by the second servo motor, the first slide block is driven to slide along the first slide groove by the first screw rod, the second slide groove and the second slide block are driven to move back and forth by the first slide block, so that the front and back positions of the magnifying glass are adjusted, the luminous points at the front and back positions of the display screen body are conveniently checked one by one, the second screw rod is driven to rotate by the first servo motor, the second slide block is driven to slide along the second slide groove by the second screw rod, the magnifying glass is driven to move left and right, the luminous points at the left and right positions of the display screen body are conveniently checked one by one, and a detector checks the surface of the display screen body according to the position of the magnifying glass, so that the omission of checking is avoided.

Description

Liquid crystal display testing device

Technical Field

The utility model relates to the technical field of display screens, in particular to a liquid crystal display screen testing device.

Background

The LCD screen consists of a certain number of color or black and white pixels, and is placed in front of a light source or a reflecting surface, and the LCD screen needs to test the bad point condition of the display screen in the production and processing process.

For example, chinese patent number is: CN 218446276U's a bad point detection device of LCD liquid crystal display panel', including the detection platform, the top of detection platform has been seted up and has been placed the storehouse, fixedly connected with buffer spring on the bottom inner wall of placing the storehouse, buffer spring's the other end is connected with the seat of accepting, one side fixedly connected with baffle of accepting, sliding rail has been seted up to the upper end both sides of detection platform, sliding rail's internal connection has the U type frame, sliding connection has the sliding block on the bottom inner wall of U type frame, sliding block's lower extreme fixedly connected with coupling spring, coupling spring's the other end is connected with the marker pen that is used for the mark.

In the prior art, when a liquid crystal display screen is tested, when a dead pixel is detected and observed, three liquid crystal box driving tubes of pixels corresponding to the dead pixel are failed to cause pixel points which are pure black or pure white under any color background, so that the liquid crystal display screen displays all black, all white or red, green and blue monochromatic backgrounds, if black, white and abnormal luminous points appear, the dead pixel exists in the liquid crystal display television, when the display screen displays all black, all white or red, green and blue monochromatic backgrounds, a tester looks at the display screen to observe the display screen, after the display screen is observed and tested for a long time in a traditional observation mode, the tester can observe the partial positions of the display screen in a non-careful way after visual fatigue is caused in the observation process, and even the observation omission appears in partial areas, so that the liquid crystal display screen is tested and detected insufficiently, and partial problem products flow out.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, a tester looks at a display screen to observe the display screen, after the traditional observation mode is used for observing and testing the display screen for a long time, after visual fatigue occurs in the observation process, the tester can cause that part of the position of the display screen is observed carelessly, even part of the area is observed in a missing way, the test and the detection of the liquid crystal display screen are insufficient, and part of products with problems flow out.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a liquid crystal display testing arrangement, includes the test box main part, the test box main part with place a platform fixed connection, place a platform and No. one electrohydraulic push rod fixed connection, no. one electrohydraulic push rod and connecting rod fixed connection, connecting rod and splint fixed connection, test box main part and No. two electrohydraulic push rod fixed connection, no. two electrohydraulic push rods and a spout fixed connection, no. one spout and a slider sliding connection, no. one slider and No. two spout fixed connection, no. two spout and No. two slider fixed connection, no. two slider and magnifying glass fixed connection.

Preferably, the surface of the placing table is provided with two first electro-hydraulic push rods, and the two first electro-hydraulic push rods are symmetrically distributed on two sides of the placing table.

Preferably, the display screen body is placed on the surface of the placement table, and two sides of the display screen body are attached to the surface of the clamping plate.

Preferably, the first sliding groove is fixedly connected with the second servo motor, and the second servo motor is fixedly connected with the first screw rod.

Preferably, the first screw rod is in threaded connection with the first sliding block, and the first screw rod is in rotary connection with the first sliding groove.

Preferably, the second sliding groove is fixedly connected with the first servo motor, and the first servo motor is fixedly connected with the second screw rod.

Preferably, the second screw rod is in threaded connection with the second sliding block, and the second screw rod is in rotary connection with the second sliding groove.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. according to the utility model, the first electrohydraulic push rod stretches to push the clamping plate to limit the display screen body, so that inconvenience in observation caused by position movement in the testing process of the display screen body is avoided, the second electrohydraulic push rod stretches to facilitate the adjustment of the height of the magnifier according to the height and the detection habit of a tester, and the tester can observe the display screen body conveniently.

2. According to the utility model, the first screw rod is driven to rotate by the second servo motor, the first slide block is driven to slide along the first slide groove by the first screw rod, the second slide groove and the second slide block are driven to move back and forth by the first slide block, so that the front and back positions of the magnifying glass are adjusted, the luminous points at the front and back positions of the display screen body are conveniently checked one by one, the second screw rod is driven to rotate by the first servo motor, the second slide block is driven to slide along the second slide groove by the second screw rod, the magnifying glass is driven to move left and right, the luminous points at the left and right positions of the display screen body are conveniently checked one by one, and a detector checks the surface of the display screen body according to the position of the magnifying glass, so that checking omission is avoided.

Drawings

Fig. 1 is a perspective view of a testing device for a liquid crystal display according to the present utility model;

FIG. 2 is a perspective view of a first chute of a LCD testing device according to the present utility model;

FIG. 3 is a perspective view of a second chute of a LCD testing device according to the present utility model;

fig. 4 is a perspective view of a first servo motor of a testing device for a liquid crystal display according to the present utility model.

Legend description: 1. a test box body; 2. a placement table; 3. a first electro-hydraulic push rod; 4. a connecting rod; 5. a clamping plate; 6. a display screen body; 7. a second electro-hydraulic push rod; 8. a first chute; 9. a second chute; 10. a magnifying glass; 11. a first servo motor; 12. a first sliding block; 13. a second slide block; 14. a second servo motor; 15. a first screw rod; 16. and a second screw rod.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

Referring to fig. 1, 2, 3 and 4, the present utility model provides a technical solution: the utility model provides a liquid crystal display testing arrangement, including test box main part 1, test box main part 1 with place platform 2 fixed connection, place platform 2 and No. one electrohydraulic push rod 3 fixed connection, no. one electrohydraulic push rod 3 and connecting rod 4 fixed connection, connecting rod 4 and splint 5 fixed connection, test box main part 1 and No. two electrohydraulic push rods 7 fixed connection, no. two electrohydraulic push rods 7 and No. 8 fixed connection of a spout, no. 8 and No. 12 sliding connection of a spout, no. 12 and No. 9 fixed connection of a spout, no. 9 and No. 13 fixed connection of a slider, no. 13 and 10 fixed connection of magnifying glass.

The first screw rod 15 is driven to rotate through the second servo motor 14, the first screw rod 15 drives the first sliding block 12 to slide along the first sliding groove 8, the first sliding block 12 drives the second sliding groove 9 and the second sliding block 13 to move back and forth, the front and back positions of the magnifier 10 are adjusted, the luminous points at the front and back positions of the display screen body 6 are conveniently checked one by one, the second screw rod 16 is driven to rotate through the first servo motor 11, the second sliding block 13 is driven to slide along the second sliding groove 9 through the second screw rod 16, the magnifier 10 is driven to move left and right, the luminous points at the left and right positions of the display screen body 6 are conveniently checked one by one, and detection personnel check the surface of the display screen body 6 according to the position of the magnifier 10, so that the omission of checking is avoided.

As shown in fig. 1 and 2, the surface of the placing table 2 is provided with two first electro-hydraulic push rods 3, the two first electro-hydraulic push rods 3 are symmetrically distributed on two sides of the placing table 2, the surface of the placing table 2 is provided with display screen bodies 6, the two sides of each display screen body 6 are attached to the surface of each clamping plate 5, the clamping plates 5 are pushed to limit the display screen bodies 6 through the extension of the first electro-hydraulic push rods 3, and the situation that the display screen bodies 6 move in the testing process is avoided, so that inconvenience in observation is caused.

As shown in fig. 3 and 4, the first sliding groove 8 is fixedly connected with the second sliding groove 14, the second sliding groove 14 is fixedly connected with the first screw rod 15, the first screw rod 15 is in threaded connection with the first sliding block 12, the first screw rod 15 is rotationally connected with the first sliding groove 8, the second sliding groove 9 is fixedly connected with the first sliding groove 11, the first sliding groove 11 is fixedly connected with the second screw rod 16, the second screw rod 16 is in threaded connection with the second sliding groove 13, the second screw rod 16 is rotationally connected with the second sliding groove 9, the first screw rod 15 is driven to rotate through the second sliding groove 14, the first sliding groove 12 is driven to slide along the first sliding groove 8 through the first screw rod 15, the second sliding groove 9 and the second sliding groove 13 are driven to move forwards and backwards through the first sliding groove 12, the front and backwards of the magnifying glass 10 is adjusted, the luminous points at the front and back positions of the display screen body 6 are checked one by one, the second sliding groove 16 is driven to slide along the second sliding groove 9 through the second sliding groove 16 through the first sliding motor 11, the second sliding groove 16 is driven to move, the magnifying glass 10 is driven to move left and right, the left and right positions of the magnifying glass body is driven to move the magnifying glass 6, the luminous points of the magnifying glass body are detected one by one, and the people are prevented from being detected one by one.

The application method and the working principle of the device are as follows: placing the display screen body 6 on the surface of placing the platform 2, switch on outside power supply, playback devices, promote splint 5 through the extension of No. one electrohydraulic push rod 3 and carry out spacing placing with the display screen body 6, avoid the test in-process position removal of display screen body 6, cause to observe inconveniently, according to test personnel's height and detection habit, be convenient for adjust the height of magnifying glass 10 through flexible No. two electrohydraulic push rods 7, be convenient for test personnel watch display screen body 6, drive a lead screw 15 through No. two servo motor 14 and rotate, drive a slider 12 through No. one lead screw 15 and slide along a spout 8, drive a spout 9 and No. two slider 13 through No. one slider 12 and carry out the back-and-forth movement, thereby adjust the front and-back position of magnifying glass 10, be convenient for carry out the inspection one by one to the luminous point of display screen body 6 front and back position, drive No. two lead screws 16 through No. two servo motor 11 and drive No. two slider 13 and slide along No. two spout 9, thereby drive magnifying glass 10 and carry out the position removal about the display screen body 6, be convenient for carrying out the inspection personnel's position is carried out the inspection according to the luminous point of the position of the display screen body 6 and is left and right.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims

1. The utility model provides a liquid crystal display testing arrangement, includes test box main part (1), test box main part (1) and place platform (2) fixed connection, place platform (2) and first electrohydraulic push rod (3) fixed connection, its characterized in that: the test box is characterized in that the first electrohydraulic push rod (3) is fixedly connected with the connecting rod (4), the connecting rod (4) is fixedly connected with the clamping plate (5), the test box body (1) is fixedly connected with the second electrohydraulic push rod (7), the second electrohydraulic push rod (7) is fixedly connected with the first sliding groove (8), the first sliding groove (8) is slidably connected with the first sliding groove (12), the first sliding groove (12) is fixedly connected with the second sliding groove (9), the second sliding groove (9) is fixedly connected with the second sliding groove (13), and the second sliding groove (13) is fixedly connected with the magnifying glass (10).

2. The liquid crystal display testing device according to claim 1, wherein: the surface of the placing table (2) is provided with two first electro-hydraulic push rods (3), and the two first electro-hydraulic push rods (3) are symmetrically distributed on two sides of the placing table (2).

3. The liquid crystal display testing device according to claim 1, wherein: the display screen body (6) is placed on the surface of the placement table (2), and two sides of the display screen body (6) are attached to the surface of the clamping plate (5).

4. The liquid crystal display testing device according to claim 1, wherein: the first sliding groove (8) is fixedly connected with the second servo motor (14), and the second servo motor (14) is fixedly connected with the first screw rod (15).

5. The liquid crystal display testing device according to claim 4, wherein: the first screw rod (15) is in threaded connection with the first sliding block (12), and the first screw rod (15) is in rotary connection with the first sliding groove (8).

6. The liquid crystal display testing device according to claim 1, wherein: the second sliding groove (9) is fixedly connected with the first servo motor (11), and the first servo motor (11) is fixedly connected with the second screw rod (16).

7. The liquid crystal display testing device according to claim 6, wherein: the second screw rod (16) is in threaded connection with the second sliding block (13), and the second screw rod (16) is in rotary connection with the second sliding groove (9).