In-Cell Touch Electrode Layout to Eliminate Display Stripes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In display substrates using In-cell technology, the arrangement of touch units results in visible horizontal stripes due to differing patterns between adjacent rows, affecting display quality.
Innovation Solution
The display substrate is designed with touch units covering an even number of rows of sub-pixels, ensuring periodic repeating patterns in both directions to eliminate pattern differences between adjacent rows, thereby avoiding visible stripes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If touch units are arranged to cover different numbers of sub-pixel rows in adjacent rows, then touch sensitivity and coverage can be optimized, but visible horizontal stripes appear due to pattern differences
Solution Approach 1:
The patent implements a periodic arrangement where touch units in alternating rows cover the same even number of sub-pixel rows (e.g., rows 1-2, 3-4, 5-6). This periodic repetition creates consistent patterns that eliminate visible horizontal stripes while maintaining optimized touch sensitivity through the even-row coverage design.
2Area of stationary object
If touch units cover an odd number of sub-pixel rows, then coverage area is maximized, but pattern asymmetry creates visible stripes between adjacent rows
Solution Approach 1:
The patent applies local quality by specifically designing touch units to cover an even number of sub-pixel rows (such as 2, 4, or 6 rows) rather than maximizing coverage with odd numbers. This local constraint on coverage quantity creates symmetric patterns that align with the alternating row structure, eliminating visible stripes while maintaining adequate touch sensitivity coverage.
3Device complexity
If touch units in adjacent rows have different patterns, then device complexity is reduced, but display uniformity deteriorates due to visible stripes
Solution Approach 1:
The patent employs periodic action by making touch units in alternating rows identical (both covering the same even number of sub-pixel rows). This periodic repetition of the same pattern every two rows creates visual uniformity and eliminates horizontal stripes, while still allowing for simplified device complexity compared to fully customized patterns for each row.
Data Source
AI summary
A display substrate, a display panel and a display device are provided. The display substrate includes: a base substrate; a plurality of sub-pixels arranged in an array on the base substrate, wherein at least one sub-pixel includes a first electrode, the first electrodes of the sub-pixels in one of two adjacent rows of sub-pixels extend in a first direction, and the first electrodes of the sub-pixels in the other one of the two adjacent rows of sub-pixels extend in a second direction intersecting with the first direction; and a touch electrode and a plurality of touch lines, wherein the touch electrode includes a plurality of touch units, one touch unit is connected to at least one touch line, and different touch units are connected to different touch lines; and wherein each touch unit covers an even number of rows of sub-pixels.