Flexible Display Panel Density Design for Light Leakage
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Solution Overview
Problem
Bent Organic Liquid Crystal Display (OLCD) panels experience light leakage due to misalignment of color resist blocks and pixel electrodes, leading to reduced display quality and uneven brightness across the screen.
Innovation Solution
The display panel design includes a bending area with a lower density of pixel electrodes and color resist blocks compared to the non-bending area, ensuring proper alignment and preventing light leakage by adjusting the spacing and density of these components to maintain uniformity and improve display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the density of pixel electrodes and color resist blocks is increased to improve display resolution, then the display quality improves, but light leakage occurs in the bending area due to misalignment
Solution Approach 1:
The patent applies different pixel electrode densities to different regions of the display panel. The bending area has a lower density of pixel electrodes and color resist blocks compared to the non-bending area. This local differentiation allows the bending area to accommodate alignment tolerances while the non-bending area maintains high resolution, preventing light leakage in the bending region while preserving display quality in the stable region.
2Adaptability or versatility
If the display panel is designed to be flexible and bendable, then adaptability and versatility improve, but misalignment occurs between pixel electrodes and color resist blocks
Solution Approach 1:
The patent implements region-specific density design where the bending area contains fewer pixel electrodes and color resist blocks per unit area compared to the non-bending area. This local quality differentiation allows the display panel to maintain flexibility and bendability while ensuring that the bending area has sufficient alignment tolerance, preventing misalignment issues that would occur with uniform high-density design throughout the entire panel.
Data Source
AI summary
Provided are a display panel, a preparation method thereof, and a display apparatus. The display panel includes an array substrate and a color filter substrate aligned and combined into a cell. The color filter substrate includes a first base substrate and a plurality of color resist blocks arranged at intervals on the first base substrate. The array substrate includes a second base substrate and a plurality of pixel electrodes arranged at intervals on the second base substrate. The pixel electrodes are in one-to-one correspondence with the color resist blocks. The display panel includes a bending area and a non-bending area located at least on one side of the bending area. A density of the pixel electrodes in the bending area is less than that in the non-bending area, and a density of the color resist blocks in the bending area is less than that in the non-bending area.