Flexible Liquid Crystal Display Panel with Segmented Black Matrix Walls
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Solution Overview
Problem
Flexible liquid crystal display panels experience severe displacement of liquid crystal molecules when bent, leading to uneven gaps and compromised display quality due to external stress.
Innovation Solution
A color film substrate with a flexible substrate, photoresist layer, alignment layer, and three-dimensional black matrix walls forming holding chambers, which fix liquid crystals and prevent random flow and displacement, thereby maintaining even cell gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If flexible liquid crystal display panel is bent, then flexibility is achieved, but liquid crystal molecules displace and cell gaps become uneven
Solution Approach 1:
The invention introduces black matrix walls that segment the liquid crystal layer into multiple independent holding chambers. Each chamber acts as an isolated compartment that constrains liquid crystal molecules within specific boundaries, preventing their displacement during bending. This segmentation approach maintains flexibility while stabilizing the liquid crystal composition through physical compartmentalization.
Solution Approach 2:
The black matrix walls serve as intermediary structures between the flexible substrate and the liquid crystal molecules. These walls provide mechanical support and create a stable framework that mediates the stress during bending, preventing direct transmission of bending forces to the liquid crystal molecules. The intermediary structure thus protects the liquid crystals from displacement while maintaining overall flexibility.
2Manufacturing precision
If black matrix walls are made taller to improve liquid crystal holding, then cell gap uniformity improves, but manufacturing complexity increases
Solution Approach 1:
The invention applies different wall heights in different locations: taller black matrix walls are positioned at critical areas where liquid crystal holding is most needed, while shorter walls are used in other areas. This local differentiation optimizes the cell gap uniformity where required without unnecessarily increasing overall structural complexity and manufacturing difficulty throughout the entire display panel.
Solution Approach 2:
Rather than making all black matrix walls uniformly tall throughout the display panel, the invention applies the taller wall structure only partially - specifically at locations where liquid crystal displacement is most problematic. This partial application achieves the necessary cell gap uniformity control without the excessive manufacturing complexity that would result from uniformly tall walls across the entire panel.
Data Source
AI summary
The application provides a color film substrate, a flexible liquid crystal display panel and a preparation method. The color film substrate includes a flexible substrate, a photoresist layer, an alignment layer and black matrix walls. By disposing the three-dimensional black matrix walls with liquid crystal-holding chambers on the color film substrate, liquid crystals can be fixed in the holding chambers for avoiding the uneven cell gap caused by the displacement of the liquid crystals. Thus, the application solves the problem that an existing flexible liquid crystal display panel has severe displacement of the liquid crystals under stress.