Flexible LCD Spacer Segmentation for Uniform Cell Gap
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Solution Overview
Problem
Existing flexible liquid crystal display panels face issues with uneven screen brightness when bent due to uneven deformation of spacers and varying liquid crystal cell gaps, leading to insufficient supporting force and excessive occupation of pixel opening area.
Innovation Solution
A flexible substrate with a spacer structure featuring intersecting first and second parts, where the spacer is positioned at the crossing points of gate and data line patterns, providing a "" shape with optimized width and arc-shaped transitions to enhance supporting force while minimizing pixel area occupation, ensuring uniform liquid crystal cell gaps and preventing brightness unevenness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional spacer structure is used in flexible LCD panels, then the manufacturing process is simple, but the spacer deforms unevenly when bent causing uneven screen brightness and insufficient supporting force
Solution Approach 1:
The spacer is divided into multiple independent parts (first spacer part, second spacer part, third spacer part) that can deform independently when the panel is bent. This segmentation allows each part to maintain its shape and providing force more effectively, preventing uneven deformation and ensuring uniform screen brightness across the curved surface.
Solution Approach 2:
Different spacer parts are positioned at different locations (crossing points of gate and data lines, and at different distances from edges) to provide localized support where needed. The first spacer part is closer to the edge while the second and third parts are at different distances from the edge, creating non-uniform distribution that optimizes both supporting force and pixel opening area occupation.
2Strength
If the spacer width is increased to provide sufficient supporting force, then the supporting force is improved, but the pixel opening area is excessively occupied
Solution Approach 1:
The total spacer width is divided into multiple segments (first, second, and third spacer parts) with different widths. The first spacer part has a first width while the second and third parts have a second width that is different from the first width. This segmentation allows the spacer to provide sufficient supporting force through multiple contact points while minimizing the total width occupied in the pixel opening area.
Solution Approach 2:
Different spacer parts have different widths optimized for their specific locations. The first spacer part closer to the edge has a different width compared to the second and third parts at greater distances from the edge. This local optimization ensures sufficient supporting force at each location while minimizing the overall occupation of pixel opening area.
3Area of stationary object
If the spacer is positioned at the center of the pixel area, then the pixel opening area occupation is minimized, but the supporting force is insufficient when bent
Solution Approach 1:
The spacer parts are positioned at specific locations rather than uniformly distributed. The first spacer part is positioned closer to the edge of the pixel area while the second and third parts are positioned at different distances from the edge. This non-uniform positioning ensures that the spacer provides sufficient supporting force at the critical bending areas while minimizing the overall occupation of the central pixel opening area.
Data Source
AI summary
The present disclosure provides a flexible substrate and a liquid crystal panel having the flexible substrate. The flexible substrate includes a color film substrate and a spacer provided on one side of the color film substrate. The spacer includes a first part and a second part that are intersected with each other.