Display Panel Data Line Layout for Balanced Polarity Crosstalk Control
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Solution Overview
Problem
The existing data line share (DLS) structure in display panels suffers from a horizontal crosstalk problem due to an uneven ratio of pixels with positive and negative polarities, leading to reduced image quality.
Innovation Solution
The proposed display panel design incorporates a configuration of main and sub data lines with alternating polarities and connections that balance the number of pixels with positive and negative polarities in each row, reducing the number of connectors and minimizing crosstalk by ensuring equal polarity distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional DLS structure is adopted to reduce the number of COFs, then the number of connectors is reduced and bonding failure risk is lowered, but horizontal crosstalk occurs due to uneven polarity distribution
Solution Approach 1:
The data line structure is segmented into main data lines and sub data lines, where each type serves specific pixel columns. Main data lines connect to pixels in odd columns while sub data lines connect to pixels in even columns, creating a segmented polarity distribution that balances positive and negative pixels along each data line, thereby reducing horizontal crosstalk while maintaining the reduced COF configuration
Solution Approach 2:
Different regions of the display panel are assigned different data line types (main or sub) based on local polarity requirements. By locally optimizing which data line connects to which pixel column, the invention achieves balanced polarity distribution in each local region, preventing the accumulation of excessive same-polarity pixels that causes horizontal crosstalk
2Object-affected harmful factors
If multiple COFs are installed to maintain traditional data line structure, then polarity balance can be maintained, but the number of connectors increases and costs increase
Solution Approach 1:
The invention merges the functionality of multiple traditional data lines into a reduced set of main and sub data lines. By combining pixel connections through this segmented structure, the invention achieves the polarity balance that would traditionally require multiple COFs while using fewer connectors, thus reducing both device complexity and manufacturing costs
Solution Approach 2:
Each main data line and sub data line is designed to serve multiple pixel columns with specific polarity patterns. This multi-functional design allows a single data line to replace what would traditionally require multiple separate connections, reducing the overall number of COFs needed while maintaining proper polarity distribution across the display panel
Data Source
AI summary
A display panel is provided. The display panel includes a plurality of pixels, a first main data line, a first sub data line, and a first connecting line. The first main data line is electrically connected to pixels arranged in at least two columns. The first sub data line and the first main data line are separated by M columns of pixels, and the first sub data line is electrically connected to pixels arranged in at least two other columns. The first connecting line connects the first main data line and the first sub data line.