Film tearing device for LCD display module

By using an automated film-peeling device and brightness testing, the problems of low efficiency and inconsistency in manual film peeling have been solved, enabling quantitative evaluation and quality control of LCD display modules, and improving product yield and production efficiency.

CN224211402UActive Publication Date: 2026-05-08SHENZHEN DJN OPTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN DJN OPTRONICS TECH CO LTD
Filing Date
2025-02-26
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In existing technologies, manual film removal is inefficient and inconsistent, while mechanical film removal lacks precise control, affecting the yield and performance evaluation of LCD display modules.

Method used

Design a film-removing device for LCD display modules, which adopts an automated film-removing robot and a brightness test probe, combined with a controller to accurately collect and evaluate brightness data, so as to realize the quantitative evaluation of film-removing effect and the scientific judgment of product performance.

Benefits of technology

It automates and improves the precision of the film-peeling process, reduces the defect rate, improves product quality control and production efficiency, and avoids human inconsistency and subjective errors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a film tearing device for a liquid crystal display (LCD) display module, which relates to the technical field of LCD display module film tearing and comprises a product placing table and a controller, the LCD display module is placed on the upper surface of the product placing table, an easy-to-tear sticker is arranged on the surface of the LCD display module, and a film tearing manipulator and a probe are arranged above the LCD display module. A protective film of the LCD display module is torn off by using the easy-to-tear auxiliary film tearing manipulator according to a fixed speed and path, the interference of human factors is eliminated, the quantitative evaluation of the mura degree of the torn film is realized through the whole automatic film tearing operation and the accurate brightness test, the test result is more objective and accurate, the production efficiency is improved, the production cost is reduced, and the production efficiency is improved. Compared with the prior art, the method has the advantages that inconsistency of manual film tearing and subjective judgment errors are avoided, in addition, unqualified products can be quickly and effectively screened out, the film tearing resistance electrostatic display performance of the products is evaluated, and a scientific basis is provided for quality control and improvement of the products.
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Description

Technical Field

[0001] This utility model relates to the field of LCD display module film removal technology, and in particular to a film removal device for LCD display modules. Background Technology

[0002] As a key piece of equipment in the LCD display module production process, the protective film removal device is mainly used to remove the protective film from the LCD display module. It plays an important role in the manufacturing of electronic display products. In practical applications, the protective film removal device for LCD display modules typically requires the use of the following technologies:

[0003] 1. The product placement platform is used to support the LCD display module and provide a stable platform for the film peeling operation. It is required to have a certain degree of flatness and load-bearing capacity.

[0004] 2. Test personnel should wear anti-static gloves and wrist straps, and hold the display module to perform the film peeling operation at a peeling speed >20cm / s.

[0005] Currently, manufacturers employ various equipment and methods to remove the protective film from LCD display modules. Some manufacturers use manual removal, relying on workers to manually peel off the protective film. This method is inefficient, and inconsistent removal results can occur due to varying techniques and pressure applied by different workers, affecting product quality. Other manufacturers use simple mechanical removal devices, which improve efficiency to some extent, but lack precise control over the removal process and effective evaluation of product performance, making it impossible to accurately assess the impact of film removal on the LCD display module's display performance.

[0006] However, the above-described implementation still has the following problems: Regarding the consistency of film removal, manual film removal makes it difficult to guarantee the same speed and path each time, resulting in inconsistent removal effects and affecting product yield. Regarding product performance evaluation, there is a lack of effective quantitative evaluation methods, making it impossible to accurately determine the product's anti-tear electrostatic display performance, and hindering effective control and improvement of product quality. This application addresses this problem by proposing a solution: designing a film removal device for LCD display modules. This device, through automated film removal operation and precise brightness testing, achieves a quantitative evaluation of the degree of film removal mura, making the test results more objective and accurate. It avoids the inconsistencies and subjective judgment errors of manual film removal, and can quickly and effectively screen out unqualified products and evaluate the product's anti-tear electrostatic display performance, providing a scientific basis for product quality control and improvement, helping to improve product quality and production efficiency, and reduce the defect rate. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a film-removing device for LCD display modules, which solves the problem that manual film removal makes it difficult to ensure that the speed and path of each removal are the same, resulting in inconsistent film removal effects and affecting the product yield.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A film-removing device for an LCD display module includes a product placement platform and a controller. An LCD display module is placed on the upper surface of the product placement platform. An easy-tear sticker is provided on the surface of the LCD display module. A film-removing robot and a probe are arranged above the LCD display module. A lighting fixture is arranged on the right side of the product placement platform. The film-removing robot is connected to the controller via wiring.

[0010] Preferably, the easy-tear sticker is used in conjunction with a film-tearing robot to assist in film tearing, and the controller receives data collected by the probe for processing and recording.

[0011] Preferably, the probe collects brightness data of the LCD display module in real time before and after the film is removed, and the lighting fixture is used to light up the LCD display module under the control of the controller.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The system achieves a quantitative assessment of the degree of film tearing through automated film-tearing operations and precise brightness testing. This makes the test results more objective and accurate, avoiding inconsistencies and subjective judgment errors caused by manual film tearing. In addition, it can quickly and effectively screen out unqualified products and evaluate the anti-tear electrostatic display performance of the products. This provides a scientific basis for product quality control and improvement, helps to improve product quality and production efficiency, and reduce the defect rate. Attached Figure Description

[0014] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0015] Figure 1 This is a structural diagram of the film-tear testing platform of this utility model.

[0016] Illustrations: 1. Product placement platform; 2. Easy-tear sticker; 3. LCD display module; 4. Film-peeling robot; 5. Controller; 6. Probe; 7. Lighting fixture. Detailed Implementation

[0017] This application provides a film-removing device for LCD display modules, which effectively solves the problem that manual film removal is difficult to guarantee consistent speed and path each time, resulting in inconsistent film removal effects and affecting product yield. This device achieves quantitative evaluation of the film removal mura degree through automated film removal operation and precise brightness testing, making the test results more objective and accurate. It avoids inconsistencies and subjective judgment errors inherent in manual film removal, and can quickly and effectively screen out unqualified products. It also evaluates the anti-tear electrostatic display performance of the products, providing a scientific basis for product quality control and improvement, helping to improve product quality and production efficiency, and reduce the defect rate.

[0018] Example

[0019] like Figure 1 As shown, the technical solution in this application embodiment effectively solves the problem that manual film tearing makes it difficult to ensure that the speed and path of film tearing are the same each time, resulting in inconsistent film tearing effects and affecting the product yield. The overall idea is as follows:

[0020] To address the problems existing in the prior art, this utility model provides a film-removing device for LCD display modules, including a product placement platform 1 and a controller 5. An LCD display module 3 is placed on the upper surface of the product placement platform 1, and an easy-tear sticker 2 is provided on the surface of the LCD display module 3. A film-removing robot 4 and a probe 6 are arranged above the LCD display module 3. A lighting fixture 7 is arranged on the right side of the product placement platform 1. The film-removing robot 4 is connected to the controller 5 through a circuit. First, the product is placed on the product placement platform 1. The easy-tear sticker 2 assists the film-removing robot 4 in removing the protective film of the LCD display module 3 at a fixed speed and path, eliminating human interference. At the same time, the controller 5 synchronously controls the lighting fixture 7 to light up the product. The probe 6 continuously tests the brightness data of the product before and after film removal and transmits it to the controller 5. The controller 5 records the data and calculates the degree of film removal mura. Based on the degree of mura and preset conditions, it judges whether the product is qualified. If it is not qualified, a recovery test is performed. The anti-film electrostatic display performance of the product is judged by calculating the degree of mura before and after recovery.

[0021] The easy-tear sticker 2 works in conjunction with the film-tearing robot 4 to assist in film removal. The controller 5 receives data collected by the probe 6 for processing and recording. The probe 6 collects the brightness data of the LCD display module 3 before and after film removal in real time. The lighting fixture 7 is used to light up the LCD display module 3 under the control of the controller 5. Through automated film removal operation and precise brightness testing, the overall system achieves a quantitative assessment of the degree of film removal mura, making the test results more objective and accurate. This avoids the inconsistency and subjective judgment errors of manual film removal. In addition, it can quickly and effectively screen out unqualified products and evaluate the anti-tear electrostatic display performance of the products, providing a scientific basis for product quality control and improvement, helping to improve product quality and production efficiency, and reduce the defect rate.

[0022] Among them, the product placement platform 1 is used to place the LCD display module 3, providing a stable support platform for film removal and related testing operations;

[0023] Easy-tear sticker 2: works in conjunction with the film-peeling robotic arm 4 to assist it in peeling off the protective film of the LCD display module 3 at a fixed speed and along a fixed path;

[0024] LCD display module 3: It is the core object of the entire operation. Its display performance is tested by probe 6 before and after the film is removed, and is lit by lamp fixture 7 for related tests.

[0025] Film-peeling robotic arm 4: Under the control of controller 5, it uses easy-tear sticker 2 to peel off the protective film of LCD display module 3 according to the set parameters, eliminating interference from human factors;

[0026] Controller 5: As the core control unit, it controls the movement of the film-tearing robot 4, the lighting fixture 7, and receives and processes the data collected by the probe 6 to calculate the degree of film tearing mura, etc.

[0027] Probe 6: Collects brightness data of LCD display module 3 before and after film removal in real time and transmits it to controller 5 to provide a basis for evaluating product performance;

[0028] Lighting fixture 7: Under the control of controller 5, it lights up LCD display module 3, creating conditions for probe 6 to collect brightness data.

[0029] Working principle:

[0030] First, the product is placed on the product placement table 1. Using the easy-tear sticker 2, the film-tearing robot 4 peels off the protective film of the LCD display module 3 at a fixed speed and path, eliminating human interference. At the same time, the controller 5 synchronously controls the lighting fixture 7 to illuminate the product. The probe 6 continuously tests the brightness data of the product before and after film peeling and transmits it to the controller 5. The controller 5 records the data and calculates the degree of film peeling mura. Based on the degree of mura and preset conditions, it judges whether the product is qualified. If it is not qualified, a recovery test is performed. By calculating the degree of mura before and after recovery, the anti-tear film electrostatic display performance of the product is judged. Through automated film peeling operation and precise brightness testing, the degree of film peeling mura is quantitatively evaluated, making the test results more objective and accurate. It avoids the inconsistency and subjective judgment error of human film peeling. In addition, it can quickly and effectively screen out unqualified products and evaluate the anti-tear film electrostatic display performance of the product, providing a scientific basis for product quality control and improvement, which helps to improve product quality and production efficiency and reduce the defect rate.

[0031] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A film-removing device for an LCD display module, comprising a product placement platform (1) and a controller (5), characterized in that, An LCD display module (3) is placed on the upper surface of the product placement platform (1), and an easy-tear sticker (2) is provided on the surface of the LCD display module (3); The LCD display module (3) is equipped with a film-tearing robot (4) and a probe (6) above it, and a lighting fixture (7) is provided on the right side of the product placement platform (1).

2. The film-peeling device for an LCD display module as described in claim 1, characterized in that: The film-tearing robot (4) is connected to the controller (5) via a circuit.

3. The film-peeling device for an LCD display module as described in claim 1, characterized in that: The easy-tear sticker (2) is used in conjunction with the film-tearing robot (4) to assist in film tearing.

4. The film-peeling device for an LCD display module as described in claim 1, characterized in that: The controller (5) receives data collected by the probe (6) for processing and recording.

5. The film-peeling device for an LCD display module as described in claim 1, characterized in that: The probe (6) collects the brightness data of the LCD display module (3) before and after the film is removed in real time.

6. The film-peeling device for an LCD display module as described in claim 1, characterized in that: The lighting fixture (7) is used to light up the LCD display module (3) under the control of the controller (5).