Display Substrate Staggered Data Lines Neutralize Shake Mura
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display technologies suffer from 'shake mura' or rolling vertical lines due to unneutralized light and dark pixels in small-sized display devices, affecting the display effect.
Innovation Solution
A display substrate with staggered scan and data lines, where sub-pixels of the same color are arranged in rows parallel to the scan lines and driven by specific data lines, employing a column inversion method to cancel out brightness changes, and the use of jumper wires for electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sub-pixels are driven by conventional data line arrangements, then the display device can be manufactured with standard processes, but rolling vertical lines and shake mura occur due to unneutralized brightness changes
Solution Approach 1:
The data lines are segmented into first sub-data lines and second sub-data lines with different extension directions. First sub-data lines extend in a first direction to drive first sub-pixels, while second sub-data lines extend in a second direction to drive second sub-pixels. This segmentation allows independent control of brightness changes in different pixel groups, enabling neutralization of shake mura effects through differential driving.
Solution Approach 2:
The patent employs asymmetric data line arrangement where first sub-data lines and second sub-data lines have different extension directions and drive different sub-pixel groups. This asymmetric configuration, combined with column inversion driving, creates opposite brightness changes in adjacent pixel columns that neutralize each other, eliminating rolling vertical lines while maintaining manufacturability.
2Manufacturing precision
If more data lines are used to drive all sub-pixels independently, then each sub-pixel can be controlled precisely, but the number of data lines increases leading to higher manufacturing costs
Solution Approach 1:
Each sub-data line is designed to drive multiple sub-pixels along its extension direction, making the data lines multi-functional. The first sub-data lines drive multiple first sub-pixels, and second sub-data lines drive multiple second sub-pixels, reducing the total number of data lines required while maintaining precise control over each sub-pixel's brightness through the column inversion method.
Data Source
AI summary
A display substrate, a manufacturing method thereof, and a display device are provided. The display substrate includes multiple pixel units, multiple scan lines, and multiple data lines. Each pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel having different colors. Sub-pixels having a same color are in a same sub-pixel row. The data line includes a first sub-data line and a second sub-data line, the first sub-pixels on two sides of each first sub-data line are electrically connected to a same first sub-data line and are driven through a same first sub-data line, and the second sub-pixel and the third sub-pixel in a same column are electrically connected to a same second sub-data line and are driven through a same second sub-data line.