Display Panel Pseudo Dual-Domain Pixel Structure
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Solution Overview
Problem
Conventional RGBW display panels suffer from low resolution due to large pixel units with four sub-pixels, leading to a less sharp and fuzzy screen display.
Innovation Solution
A display panel with a pseudo dual-domain pixel structure, featuring three sub-pixels in each pixel unit arranged in a row, where adjacent units differ in one sub-pixel color and match in the other two, improving transmittance and reducing color shift while maintaining a higher aperture ratio compared to conventional designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a white sub-pixel is added to each pixel unit to improve transmittance, then the transmittance of the display panel is improved, but the area of the pixel unit increases, causing low resolution and fuzzy screen
Solution Approach 1:
The pixel array is divided into multiple pixel units, where each pixel unit contains only 3 sub-pixels instead of 4. By segmenting the pixel units and arranging them in alternating patterns (RGB, GRB, BGR, BRG), the patent achieves high transmittance in units with white-sub-pixel-equivalent area while maintaining small pixel unit area for high resolution
Solution Approach 2:
Different pixel units have different local compositions (RGB vs GRB vs BGR vs BRG), creating local quality variations that optimize both transmittance and resolution. The alternating pattern ensures that white sub-pixels are distributed selectively to improve transmittance without uniformly increasing pixel unit area across the entire display
2Illumination intensity
If the pixel unit area is increased to include four sub-pixels, then the transmittance is improved, but the resolution decreases, resulting in a fuzzy display screen
Solution Approach 1:
The display is segmented into multiple small pixel units of 3 sub-pixels each, arranged in an alternating pattern. This segmentation allows the overall display to achieve high transmittance through strategic placement of white-sub-pixel-equivalent areas while maintaining small individual pixel unit areas for high resolution and sharpness
Solution Approach 2:
The patent introduces a new dimension to the pixel arrangement by using alternating patterns (RGB, GRB, BGR, BRG) across adjacent pixel units. This dimensional variation in arrangement allows optimization of transmittance without compromising resolution, as the white sub-pixel equivalents are distributed across the display rather than concentrated in larger pixel units
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a first substrate, a second substrate, and a pixel unit array. The pixel unit array includes multiple pixel units, the pixel unit includes three sub-pixels, the sub-pixel is a first color sub-pixel, a second color sub-pixel, a third color sub-pixel or a fourth color sub-pixel. In any two pixel units adjacent to each other, one of the sub-pixels in one of the two pixel units is different in color from one of the sub-pixels in the other one of the two pixel units, and the other two of the sub-pixels in the one of the two pixel units are the same in color as the other two of the sub-pixels in the other one of the two pixel units respectively.