Liquid Crystal Display Spacer Positioning via Supporter Structures
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Solution Overview
Problem
In liquid crystal display panels, spacers can shift from their intended positions when an external force is applied, leading to light leakage due to their movement away from the driving lines.
Innovation Solution
The design incorporates 'supporters' with specific shapes on the substrate's inner surface, such as '+' or 'Y' shapes, which extend beyond the spacer projections to securely hold the spacers in place, preventing movement and reducing light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If spacers are positioned corresponding to the driving lines to maintain proper distance between substrates, then the liquid crystal display panel can maintain proper structure, but when external force is applied the spacers may move from positions facing the driving lines causing light leakage
Solution Approach 1:
The patent applies preliminary action by pre-positioning supporters on the driving lines before the spacers are placed. These supporters extend beyond the driving lines to create predetermined positioning regions that guide and constrain the spacers to remain aligned with the driving lines even when external forces are applied, preventing light leakage before it can occur.
Solution Approach 2:
The patent introduces supporters as an intermediary element between the driving lines and the spacers. These supporters act as mediators that transfer the positioning function from the driving lines to the spacers, ensuring the spacers remain properly positioned without directly relying on the driving lines alone, thus preventing light leakage.
2Length of stationary object
If spacers are used to maintain distance between upper and lower substrates, then proper substrate spacing is achieved, but spacers may shift position under external force leading to light leakage
Solution Approach 1:
The supporters are pre-formed on the driving lines before spacer assembly, creating predetermined positioning regions that extend beyond the driving lines. This preliminary positioning structure ensures that when spacers are placed, they are automatically guided into and constrained within the correct positions, maintaining reliable alignment under external forces while preserving the necessary substrate distance.
Solution Approach 2:
The supporters serve as intermediary structures that bridge the driving lines and spacers. They provide a stable intermediate platform that maintains the required substrate distance while simultaneously providing positioning constraints that prevent spacer displacement, thus resolving the conflict between maintaining distance and ensuring position reliability.
3Object-affected harmful factors
If spacers are positioned to face driving lines for proper alignment, then light leakage is prevented, but spacers may move to sides of driving lines when external force is applied
Solution Approach 1:
The supporters are preliminarily positioned on the driving lines with extensions that protrude beyond the driving line boundaries. This preliminary configuration creates predetermined positioning regions that actively constrain spacers to remain facing the driving lines, preventing any lateral movement that would cause light leakage when external forces are applied.
Solution Approach 2:
The supporters act as intermediary constraint structures that mediate between the driving lines and spacers. They provide continuous positional guidance and lateral constraint, ensuring spacers remain properly aligned with driving lines under external forces, thus preventing light leakage through stable alignment maintenance.
Data Source
AI summary
Liquid crystal display panel includes a first substrate, a second substrate facing the first substrate, a liquid crystal layer sandwiched between the first substrate and the second substrate, a plurality of spacers located in the liquid crystal layer and protruding from the first substrate towards the second substrate, and a plurality of supporters defined at an inner surface of the second substrate and configured to support the spacers. Each supporter is corresponding to one spacer of the plurality of spacers and has a “+” shape or a “Y” shape in a top view.