Relay Member Reduces Level Differences in Display Cell Assembly
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Solution Overview
Problem
Display devices face issues with deformities such as level differences between the display cell and the surrounding member when a cover film is attached, which affect the structural integrity and image quality.
Innovation Solution
Incorporating a relay member made of glass, carbon, or glass fiber behind the display cell, facing the margin between the display cell and the surrounding member, with an adhesive layer between the relay member and both the display cell and the surrounding member to reinforce the cover film and reduce deformities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a cover film is attached to the front surface of the display cell to support it, then size and weight are reduced, but deformities such as level differences occur in the margin between the display cell and the surrounding member
Solution Approach 1:
A relay member is introduced as an intermediary component positioned between the display cell and the surrounding member. This relay member has a first adhesive layer that bonds to the display cell and a second adhesive layer that bonds to the surrounding member, serving as a mediator that prevents direct stress transmission and eliminates level differences in the margin area
Solution Approach 2:
The relay member is designed with specific material properties (flexibility, adhesive characteristics) that differ from both the display cell and surrounding member. By changing the physical parameters of the intermediate layer, the system accommodates dimensional differences and prevents deformities while maintaining structural support
2Device complexity
If the cover film is attached directly to the display cell and surrounding member, then the structure is simplified, but stress and expansion differences cause deformities in the margin
Solution Approach 1:
The relay member acts as a buffer intermediary between the display cell and surrounding member, absorbing expansion differences and contraction stress. The dual adhesive layer configuration ensures reliable bonding while preventing stress concentration that would cause deformities in the margin area
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces level differences and stress between the display cell and the surrounding member, enhancing planarity and image quality by buffering expansion differences and absorbing contraction stress.
Implementation Method 1
an adhesive layer provided between the relay member and the display cell, and between the relay member and the surrounding member
Implementation Method 2
the relay member is made of one or more of a group consisting of glass, carbon, and glass fiber
Data Source
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AI summary
There is provided a display device including: a display cell (20); a surrounding member (30) provided around the display cell (20); a cover film (10) provided on front side of the display cell (20) and the surrounding member (30); a relay member (40) provided on rear side of the display cell (20) and the surrounding member (30), and facing a margin between the display cell (20) and the surrounding member (30); and an adhesive layer (50) provided between the display cell (20) and the relay member (40), and between the surrounding member (30) and the relay member (40).