Fixing device for removing liquid crystal display (LCD) polaroid

By designing a fixing device using fiberglass board material and a vacuum pump system, the problem of LCD breakage caused by LCD movement during polarizer removal was solved, achieving stable fixing of the LCD and improving maintenance efficiency and yield.

CN223796779UActive Publication Date: 2026-01-13SHANGHAI ZHUOYUN ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202520133941.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-01-13
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

In existing technologies, when removing the LCD polarizer, the LCD is prone to movement, which can lead to breakage and reduce repair efficiency and yield.

Method used

Design a fixing device using a 3mm thick fiberglass board material with dimensions of 330mm x 200mm and a hollow area of ​​250mm x 30mm. Set 116 adsorption holes with a radius of 2mm. Connect a vacuum pump to the adsorption holes to achieve uniform fixing of the LCD.

Benefits of technology

It effectively prevents LCD movement, reduces breakage rate, and improves repair efficiency and yield.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fixing device for removing a liquid crystal display (LCD) polaroid, which comprises a jig plate, a plurality of adsorption holes are arranged on the jig plate, a hollow part for accommodating a circuit board is arranged on the jig plate, and a plurality of grooves are arranged on one side of the hollow part of the jig plate. According to the utility model, the glass fiber plate material with the thickness of 3mm is selected, and the overall size of the device is determined to be 330mm * 200mm according to the size of a mainstream LCD (Liquid Crystal Display) on the market; according to the structural characteristics of the LCD, a hollow-out area of 250 mm * 30 mm is designed and used for containing a protruding area on the back face of the LCD, so that the LCD can be horizontally placed on the device and tightly attached to the surface of the device; 116 adsorption holes with the radius of 2mm are distributed on the device, and the adsorption holes are uniformly distributed on the device, so that the stress of the LCD is uniform, and the LCD is prevented from being deformed or broken; a vacuum pump is installed below the device and connected with each adsorption hole through a pipeline, the vacuum pump is started during working, the LCD is adsorbed to the device, and it is ensured that the LCD is firmly fixed to the device.
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Description

Technical Field

[0001] This utility model relates to the field of LCD fixing technology, specifically a fixing device for removing LCD polarizers. Background Technology

[0002] When repairing an LCD, it is necessary to remove the polarizer on the LCD surface. The polarizer is attached to the LCD with glue. During the removal process, it is necessary to effectively fix the LCD to prevent it from moving or breaking, thereby improving the repair yield and efficiency.

[0003] The existing fixing method involves placing the LCD on the polarizer removal equipment platform and using side blocks to fix the LCD. In this method, the LCD is prone to movement during operation, which can easily cause it to break, increasing the scrap rate and reducing maintenance efficiency; the LCD breakage rate is about 15%. Therefore, we propose a fixing device for removing LCD polarizers. Utility Model Content

[0004] The purpose of this invention is to provide a fixing device for removing LCD polarizers, so as to solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fixing device for removing LCD polarizers, comprising a jig plate, wherein the jig plate has a plurality of adsorption holes, the jig plate has a hollow portion for accommodating circuit boards, and the jig plate has a plurality of grooves on one side of the hollow portion.

[0006] Preferably, the fixture plate has clearance grooves at all four corners of the hollowed-out portion.

[0007] Preferably, a total of 116 adsorption pores are provided, and the radius of each adsorption pore is 2 mm.

[0008] Preferably, the spacing between adjacent adsorption pores on the left and right is 22mm, and the spacing between adjacent adsorption pores on the front and back is 20mm.

[0009] Preferably, the jig plate has a length of 330mm, a width of 200mm, and a thickness of 3mm; the hollow portion has a length of 250mm and a width of 30mm.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: A 3mm thick fiberglass board material is selected, and the overall size of the device is determined to be 330mm x 200mm based on the size of mainstream LCDs on the market; a 250mm x 30mm hollow area is designed according to the structural characteristics of the LCD to accommodate the protruding area on the back of the LCD, allowing the LCD to be placed horizontally on the device and tightly adhered to the device surface; 116 adsorption holes with a radius of 2mm are arranged on the device, evenly distributed to ensure uniform force on the LCD and prevent deformation or breakage; a vacuum pump is installed at the bottom of the device and connected to each adsorption hole through a pipe. When working, the vacuum pump is turned on to adsorb the LCD onto the device, ensuring that the LCD is firmly fixed on the device. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram: 1. Fixture plate; 2. Adsorption hole; 3. Hollowed-out part; 4. Groove; 5. Clearance groove. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0015] Please see Figure 1In this embodiment of the present invention, a fixing device for removing LCD polarizers includes a jig plate 1, which has multiple adsorption holes 2 and a hollow portion 3 for accommodating circuit boards. Multiple grooves 4 are provided on one side of the hollow portion 3, and clearance grooves 5 are provided at the four corners of the hollow portion 3. A 3mm thick fiberglass board is selected for its durability and resistance to deformation and wear during use. The device is designed to an appropriate size based on the current mainstream LCD sizes. A hollow area is designed for the LCD's back, which has protruding areas such as PCB boards, allowing the LCD to be placed horizontally on the device and fit snugly against it. The LCD is fixed using vacuum adsorption. A vacuum pump is connected below the device. The LCD is placed on a platform, the vacuum pump is turned on, and the LCD is adsorbed and fixed before the polarizer is removed. A vacuum pump is installed below the device and connected to each adsorption hole via a pipe. During operation, the vacuum pump is turned on to adsorb the LCD onto the device, ensuring the LCD is firmly fixed.

[0016] A total of 116 adsorption holes 2 are provided. The radius of each adsorption hole 2 is 2mm. The distance between adjacent adsorption holes 2 on the left and right is 22mm, and the distance between adjacent adsorption holes 2 in front and behind is 20mm. The length of the fixture plate 1 is 330mm, the width of the fixture plate 1 is 200mm, and the thickness of the fixture plate 1 is 3mm. The length of the hollow part 3 is 250mm, and the width of the hollow part 3 is 30mm.

[0017] The working principle of this invention is as follows: A 3mm thick fiberglass board is selected, and the overall size of the device is determined to be 330mm x 200mm based on the dimensions of mainstream LCDs on the market. According to the structural characteristics of the LCD, a 250mm x 30mm hollow area is designed to accommodate the protruding area on the back of the LCD, allowing the LCD to be placed horizontally on the device and tightly adhered to its surface. 116 suction holes with a radius of 2mm are evenly distributed on the device to ensure uniform force on the LCD and prevent deformation or breakage. A vacuum pump is installed at the bottom of the device and connected to each suction hole via a pipe. During operation, the vacuum pump is turned on to suction the LCD onto the device, ensuring the LCD is firmly fixed in place.

[0018] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fixing device for removing LCD polarizers, comprising a jig plate (1), characterized in that: The fixture plate (1) has multiple adsorption holes (2), the fixture plate (1) has a hollow part (3) for accommodating the circuit board, and the fixture plate (1) has multiple grooves (4) on one side of the hollow part (3).

2. The fixing device for removing LCD polarizers according to claim 1, characterized in that: The fixture plate (1) has clearance grooves (5) at the four corners of the hollow part (3).

3. The fixing device for removing LCD polarizers according to claim 1, characterized in that: The adsorption pores (2) are provided in a total of 116, and the radius of the adsorption pores (2) is 2 mm.

4. The fixing device for removing LCD polarizers according to claim 1, characterized in that: The distance between adjacent adsorption holes (2) on the left and right is 22mm, and the distance between adjacent adsorption holes (2) in front and behind is 20mm.

5. The fixing device for removing LCD polarizers according to claim 1, characterized in that: The jig plate (1) has a length of 330mm, a width of 200mm, and a thickness of 3mm; the hollow part (3) has a length of 250mm and a width of 30mm.