Display Cell Gap Compensation Pattern for Uniform Substrate Spacing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display apparatuses face challenges in maintaining a uniform cell gap between substrates, leading to non-uniformity in display quality.
Innovation Solution
A display apparatus with a cell gap compensation pattern in the peripheral areas, coupled with a coupling member and drivers, ensures uniform cell gaps across the display area by minimizing differences in cell gap thickness through the use of thin film layers and strategically positioned drivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a spacer is formed between the two substrates in the display area to maintain a uniform cell gap, then the cell gap uniformity is improved, but the device complexity increases due to the additional spacer structure and manufacturing steps
Solution Approach 1:
The patent extracts the cell gap maintenance function from the display area spacers and relocates it to the peripheral area through the coupling member. By removing spacers from the display area and concentrating the cell gap control function in the peripheral coupling structure, the display area remains clean without additional structures while the peripheral coupling member maintains uniform cell gap through its specific geometric design
Solution Approach 2:
The coupling member acts as an intermediary element between the first and second base substrates in the peripheral area. It mediates the cell gap control function by providing a structured interface that maintains uniform spacing between substrates through its geometric configuration, eliminating the need for separate spacer materials in the display area
2Manufacturing precision
If the cell gap compensation pattern is formed in the peripheral area to reduce cell gap difference, then the display quality is improved, but the manufacturing process complexity increases
Solution Approach 1:
The coupling member is designed with pre-determined geometric features that automatically compensate for cell gap variations before the actual display assembly is completed. The peripheral area structure is configured in advance to provide the necessary cell gap compensation, eliminating the need for additional post-processing or complex multi-step compensation procedures
Solution Approach 2:
The coupling member performs multiple functions simultaneously: it provides mechanical bonding between substrates, maintains cell gap uniformity, and compensates for cell gap differences in the peripheral area. By consolidating these functions into a single integrated structure, the patent avoids the need for separate components for each function, thereby simplifying the overall manufacturing process despite the enhanced functionality
Data Source
AI summary
A display apparatus includes a first base substrate having a display area and a peripheral area divided into a first peripheral area and a second peripheral area, a second base substrate facing the first base substrate, a pixel arranged in the display area, a first driver arranged in the first peripheral area to apply a driving signal to the pixel, a coupling member disposed in the peripheral area to couple the first base substrate to the second base substrate, and a cell gap compensation pattern disposed in the second peripheral area. The cell gap compensation pattern reduces the difference between a cell gap of the display area adjacent to the first peripheral area and a cell gap of the display area adjacent to the second peripheral area, thereby uniformly maintaining the cell gap of the display apparatus to improve a display quality.