Pixel Array Segmentation for Source Driving Signal Stability
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Solution Overview
Problem
Conventional TFT-LCD pixel arrays with dual-gate designs face issues of increased power consumption and temperature in the source driving circuit due to varying source driving signals, leading to inconsistent charging states of pixels and the occurrence of horizontal fine lines.
Innovation Solution
A pixel array design with alternately arranged first and second sub-pixel unit groups, each connected to different data and gate lines, stabilizes the source driving signal polarity and reduces power consumption, ensuring consistent charging states across pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the source driving signal is varied constantly in a conventional dual-gate pixel array, then the display can accommodate different image content requirements, but the power consumption and temperature of the source driving circuit increase
Solution Approach 1:
The pixel array is segmented into first and second sub-pixel unit groups with different gate line connections. This segmentation allows independent control of signal polarity for different pixel groups, enabling the source driving circuit to maintain stable signals while the gate driving circuit handles the variations needed for different display content.
2Adaptability or versatility
If the source driving signal is varied constantly, then different image content can be displayed, but the charging time of pixels is shortened due to signal delay, resulting in insufficient charge of pixels
Solution Approach 1:
By segmenting the pixel array into groups connected to different gate lines, the patent enables staggered or independent timing control of signal transitions. This reduces signal delay impact on pixel charging time while maintaining adaptability for different image content.
3Adaptability or versatility
If the source driving signal is varied constantly, then the display can handle different image content, but horizontal fine lines occur due to inconsistent charging states of pixels in odd and even rows
Solution Approach 1:
The patent segments the pixel array into first and second sub-pixel unit groups with alternating arrangements connected to different gate lines. This segmentation ensures that pixels in odd and even rows receive consistent charging signals from their respective gate lines, eliminating the horizontal fine lines caused by charging inconsistencies while preserving adaptability for different image content.
4Adaptability or versatility
If the source driving signal is varied constantly, then the display can accommodate different image content, but the temperature of the source driving circuit increases
Solution Approach 1:
By segmenting the pixel array and assigning different gate line connections to different sub-pixel unit groups, the patent enables the source driving circuit to operate with more stable, less varying signals. This reduces power consumption and heat generation in the source driving circuit while the gate driving circuit handles the signal variations needed for different display content.
Data Source
AI summary
Disclosed are a pixel array, a display panel and a display device. The pixel array includes: a plurality of pixel units arranged in an array, a plurality of data lines and a plurality of gate lines, wherein each of the pixel units includes four sub-pixel units; the first sub-pixel unit group includes two adjacent sub-pixel units, and the second sub-pixel unit group includes remaining two adjacent sub-pixel units; the first sub-pixel unit group and the second sub-pixel unit group are alternately arranged in both a row direction and a column direction; the data line connected with the two adjacent sub-pixel units included in the first sub-pixel unit group is different from the data line connected with the two adjacent sub-pixel units included in the second sub-pixel unit group.