Display Panel Data-Line Segmentation to Prevent Vertical Lines
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Solution Overview
Problem
The related low-cost double gate pixel architecture suffers from poor image quality due to insufficient charging rate during high-frequency display, resulting in vertical lines on the screen.
Innovation Solution
The display panel is designed with multiple pixel circuit groups and data supply line groups, where each data supply line is connected to two columns of pixel circuits with the same color, and these groups are arranged on a base substrate, allowing for improved charging efficiency by providing data signals to the pixel circuits in a time-division manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If one data line drives pixel circuits of different colors in a dual gate pixel architecture, then the device complexity is reduced, but the charging rate becomes insufficient at high frequencies causing vertical line defects
Solution Approach 1:
The patent segments the data supply system by assigning separate data lines to different color pixel circuits. Specifically, red pixel circuits are driven by one data line, green pixel circuits by another data line, and blue pixel circuits by a third data line. This segmentation allows each data line to dedicatedly serve its color without sharing, thereby increasing the charging rate for each pixel circuit type and eliminating the vertical line defects caused by insufficient charging in mixed-color driving arrangements.
2Device complexity
If data supply lines are shared across multiple color pixel circuits, then the device complexity is reduced, but the charging rate becomes insufficient during high-frequency display
Solution Approach 1:
The patent implements segmentation by dedicating separate data supply lines to each color pixel circuit. The first data supply line connects only to red pixel circuits, the second data supply line connects only to green pixel circuits, and the third data supply line connects only to blue pixel circuits. This dedicated assignment ensures that each data line can provide sufficient charging current to its assigned color circuits at high frequencies, resolving the contradiction between reduced complexity and sufficient charging rate.
3Productivity
If pixel circuits are driven at high frequency, then the display refresh rate is improved, but insufficient charging causes vertical line defects
Solution Approach 1:
The patent resolves this contradiction through segmentation of data supply lines by color. By assigning dedicated data lines to red, green, and blue pixel circuits respectively, the system can maintain high-frequency driving without charging deficiencies. Each data line is optimized for its specific color circuit, ensuring complete charging even at high refresh rates, thereby eliminating vertical line defects while maintaining high productivity.
Data Source
AI summary
A display panel includes multiple pixel circuit groups and multiple data supply line groups arranged on a base substrate; the multiple pixel circuit groups correspond to the multiple data supply line groups; the pixel circuit group includes multiple pixel units, each pixel unit includes M pixel circuits with different colors; the pixel circuit group includes 2N columns of pixel circuits, and a same column of pixel circuits included in the pixel circuit group have a same color; wherein N is a multiple of M, and both N and M are positive integers; the data supply line group includes N data supply lines; the data supply lines in the data supply line group are electrically connected to two columns of pixel circuits with the same color in a corresponding pixel circuit group, respectively, and are used to provide data signals to the two columns of pixel circuits with the same color.