Liquid Crystal Panel Heat-Shrinkable Spherical Supports
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Solution Overview
Problem
Liquid crystal display devices face issues with non-uniform metal wiring and sparse supports in the transition zone, leading to deformation of substrates and color differences around the displaying zone, affecting the displaying quality.
Innovation Solution
A liquid crystal panel with a resin frame containing spherical supports, where at least one layer is made of a heat-shrinkable material, allowing for adjustment of the gap between substrates through light irradiation and heating to alleviate color differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal wiring is arranged under the resin frame, then electrical connections are established, but non-uniformity of the wiring causes non-uniformity of the entire size of the resin frame, leading to deformation of the substrates
Solution Approach 1:
The support particles undergo parameter change through heat shrinkage, transforming from a larger initial size to a smaller final size. This parameter change allows the support particles to compensate for the non-uniformity caused by metal wiring, maintaining uniform gap distance between substrates despite wiring-induced deformations in the resin frame.
2Device complexity
If the density of the supports in the transition zone is small, then manufacturing complexity is reduced, but excessively large or excessively small compression occurs, leading to expansion or reduction of the gap between substrates
Solution Approach 1:
The support particles utilize parameter change through heat shrinkage to adjust their size dynamically. This allows a smaller initial density of supports to achieve the desired compression effect, as each support particle can reduce its size controllably through heating, thereby maintaining uniform gap distance without requiring high support density.
Solution Approach 2:
The support particles transition from a static state to a dynamic state through heat-induced shrinkage. This dynamic adjustment capability allows the supports to adapt their size based on manufacturing requirements, enabling precise control of gap distance uniformity even with reduced support density in the transition zone.
3Ease of manufacture
If the gap between substrates is not uniformly controlled, then manufacturing process is simplified, but color difference occurs at the perimeter, severely affecting displaying quality
Solution Approach 1:
The support particles undergo parameter change through heat shrinkage, allowing uniform gap distance to be achieved despite simplified manufacturing processes. The heat treatment step induces controlled shrinkage of support particles, compensating for any non-uniformities and preventing color differences at the perimeter, thereby maintaining high displaying quality without complex gap control procedures.
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 heat-shrinkable supports enable precise adjustment of the gap between substrates, reducing perimeter color differences and improving displaying quality by allowing for real-time correction of size non-uniformities during manufacturing.
Implementation Method 1
at least one of the outer layer and the inner layer being made of a heat-shrinkable material... after the supports are irradiated by light and gets heated, a portion of the support that is made of the heat-shrinkable material deforms
Data Source
AI summary
A liquid crystal panel includes a first substrate and a second substrate opposite to the first substrate, a liquid crystal layer interposed between the first substrate and the second substrate, and an enclosure resin frame located between the first substrate and the second substrate to enclose and seal the liquid crystal layer. The enclosure resin frame surrounds the liquid crystal layer that is located in a displaying zone of the liquid crystal panel. The enclosure resin frame includes spherical supports arranged therein. The spherical supports include an inner layer and an outer layer. At least one of the outer layer and the inner layer is made of a heat-shrinkable material, or alternatively, the inner layer and the outer layer are both made of heat-shrinkable materials. Also provided are a manufacturing method of a liquid crystal panel and a liquid crystal displaying device.