Liquid Crystal Display Panel Pixel Structure for Crosstalk Reduction
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Solution Overview
Problem
Liquid crystal display (LCD) panels suffer from color crosstalk due to varying degrees of coupling between data lines and pixels, leading to poor screen picture quality.
Innovation Solution
A liquid crystal display panel with a pixel structure that includes three sub-pixels of different colors arranged in each pixel group, where each data line connects three sub-pixels in sequence, and the original charging sequence is altered to ensure uniform sub-pixel charging, allowing for staggered bright and dark arrangements to equalize brightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data lines are connected to pixels in a conventional manner, then the display can be manufactured with standard pixel structures, but color crosstalk occurs due to varying coupling degrees between data lines and pixels
Solution Approach 1:
The pixel array is divided into pixel groups, where each group contains three sub-pixels of different colors (R, G, B) arranged in a specific pattern. Each data line connects to three sub-pixels in sequence across different columns, creating segmented charging paths that equalize coupling effects and eliminate color crosstalk.
Solution Approach 2:
The conventional charging sequence is inverted by connecting data lines to sub-pixels in a non-sequential pattern across columns. Instead of charging sub-pixels in traditional order, the patent charges them in a sequence that alternates columns (e.g., column 1 → column 2 → column 3), which equalizes the coupling degree and eliminates color crosstalk.
2Manufacturing precision
If sub-pixels are charged in the original sequence, then the charging process is simple, but brightness uniformity is poor due to varying coupling degrees
Solution Approach 1:
The charging sequence is inverted from the conventional approach by connecting data lines to sub-pixels in alternating column order. This inversion equalizes the coupling degree experienced by each sub-pixel, achieving uniform brightness across the display while maintaining a relatively simple implementation.
Solution Approach 2:
Each pixel group has a specific local arrangement where three sub-pixels of different colors are positioned in different columns with specific connectivity patterns. This local quality variation ensures that each sub-pixel experiences similar coupling conditions, achieving overall brightness uniformity.
Data Source
AI summary
A liquid crystal display panel and a display device are disclosed. The liquid crystal display panel includes a pixel matrix composed of more than two sub-pixels. Three adjacent sub-pixels located in the same row have different colors, and all sub-pixels located in the same column have the same color. Each data line is connected to at least one pixel group successively. Each pixel group includes three sub-pixels with different colors, which are respectively located on both sides of the data line. In a pixel group, each data line is connected to three sub-pixels in sequence.