A polarizer protective film and a display module

By setting corner adhesion blocks and multiple adhesion blocks on the polarizer protective film in a staged peeling system, the problem of adhesion between the lower polarizer and the protective film is solved, achieving rapid and continuous film separation, improving production efficiency and reducing polarizer damage.

CN224280127UActive Publication Date: 2026-05-26CHONGQING LIANGJIANG LIANCHUANG ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING LIANGJIANG LIANCHUANG ELECTRONICS CO LTD
Filing Date
2025-04-22
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

During the precision assembly of smartphone LCD display modules, the lower polarizer and protective film are prone to sticking together when separated, causing the polarizer to bend at an angle, affecting production efficiency and increasing losses.

Method used

A polarizer protective film is designed. By setting adhesive blocks at the corners of the protective film body and arranging multiple adhesive blocks at intervals along the end of the second adhesive layer, a staged peeling system is constructed. The system utilizes stress concentration and leverage fulcrum effect to achieve rapid and continuous membrane separation.

Benefits of technology

It achieves rapid and complete membrane separation, avoids polarizer adhesion and damage, improves production efficiency, and reduces rework and waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a polarizer protective film and a display module. The polarizer protective film includes a protective film body and a peeling assembly. One side of the protective film body is attached to the display module through a first adhesive layer. The peeling assembly includes a film layer, a second adhesive layer, a connecting part, and a tearing handle. One side of the second adhesive layer is attached to the film layer. The connecting part and the tearing handle are attached to the opposite ends of the other side of the second adhesive layer. The connecting part is attached to the side of the protective film body facing away from the display module. The tearing handle is located outside the protective film body. The connecting part consists of several adhesive blocks. One adhesive block is located at a corner of the protective film body. The remaining adhesive blocks are spaced apart at the end of the second adhesive layer away from the tearing handle. The stress concentration characteristics of the adhesive blocks at the corner ensure rapid peeling. The fulcrum distribution of the multiple adhesive blocks at the end of the connecting part ensures the continuity of the peeling process, effectively overcoming the technical problems of high peeling resistance and easy residue generation in traditional fully bonded structures.
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