Pixel Array Data Line Sharing for Aperture Ratio
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Solution Overview
Problem
Existing display panel technologies require a high number of data lines to drive the panel, leading to a lower aperture ratio due to the arrangement of red, green, and blue sub-pixels, which increases the complexity and reduces the efficiency of the display.
Innovation Solution
A pixel array is designed where adjacent sub-pixels of the same color share a data line, reducing the number of data lines required and improving the aperture ratio by periodically arranging three sub-pixels as a period in both directions, allowing for efficient data line utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If three sub-pixels (red, green, blue) are arranged orderly and repeatedly in each column, then the display panel can be driven with data lines corresponding to each sub-pixel column, but the data line number required increases to 3*n, leading to a lower aperture ratio
Solution Approach 1:
The patent merges the data line control for adjacent sub-pixels of the same color by sharing a common data line. Specifically, adjacent red sub-pixels share a data line, adjacent green sub-pixels share a data line, and adjacent blue sub-pixels share a data line. This combining approach reduces the total data line count from 3*n to approximately n, directly resolving the technical contradiction between maintaining display functionality and reducing device complexity.
Solution Approach 2:
Each data line is designed to serve multiple sub-pixels of the same color across different pixel units. A single data line controls multiple red sub-pixels, multiple green sub-pixels, or multiple blue sub-pixels, making the data line multi-functional. This universality principle enables the reduction of data line quantity while maintaining the ability to drive all sub-pixels effectively.
2Ease of operation
If three sub-pixels are arranged orderly and repeatedly in each column, then each sub-pixel can be independently controlled, but the increased data line number leads to a lower aperture ratio
Solution Approach 1:
The patent combines the control function for multiple sub-pixels of the same color into a single data line. By merging the control signals for adjacent red sub-pixels into one data line, and similarly for green and blue sub-pixels, the patent reduces the number of data lines required. This merging increases the aperture ratio by reducing the non-active area occupied by data lines while maintaining the operational control capability over all sub-pixels.
Solution Approach 2:
The patent reorganizes the sub-pixel arrangement from a traditional column-based orderly sequence (RGBRGB...) to a pattern where sub-pixels of the same color are grouped and controlled along one dimension while being shared across adjacent pixels in another dimension. This dimensional reorganization allows a single data line to control multiple sub-pixels, reducing the data line count and increasing aperture ratio.
Data Source
AI summary
Disclosed are pixel array, a display panel, and a display device. The pixel array includes a plurality of pixels distributed in matrix along a first direction and a second direction. Each pixel comprising three sub-pixels has different colors, the three sub-pixels are respectively named a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. In the pixels distributed in the first direction, adjacent two sub-pixels in adjacent two pixels have the same color, and the adjacent two sub-pixels having the same color in the adjacent two pixels shares a date line. A data line number required for the display panel is reduced, and the aperture ratio of the display panel is improved.