Array Substrate Pixel Group Scan Line Reduction
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Solution Overview
Problem
Conventional display devices face challenges in increasing frame frequency and improving picture fluency due to limitations in sub-pixel scanning and data line connections.
Innovation Solution
The array substrate is designed with a pixel group configuration where four sub-pixel units are arranged in two rows and two columns, connected to three scan lines and at least three data lines, allowing different sub-pixel units to be connected to different combinations of scan and data lines, reducing the number of scan lines by ¼, thereby reducing scan time and increasing frame frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional RGBW pixel arrangement with four sub-pixel units per main pixel is used, then display lightness is improved, but frame frequency cannot be increased sufficiently
Solution Approach 1:
The patent segments the pixel structure into four independent sub-pixel units (R, G, B, W) that can be controlled separately, allowing flexible scanning patterns that reduce scan time while maintaining display quality and lightness
Solution Approach 2:
The patent implements dynamic scanning where different sub-pixels can be scanned at different rates and times, enabling the system to adapt the scanning sequence to optimize both frame frequency and display performance
2Ease of operation
If each row of sub-pixel units corresponds to a single scan line, then the driving procedure is simple, but scan time increases and frame frequency is limited
Solution Approach 1:
The patent divides the scanning task into segments by assigning different scan lines to different sub-pixel units within the same row, allowing parallel scanning that reduces total scan time while maintaining operational simplicity
Solution Approach 2:
The patent introduces a dimensional change in the scanning approach by using multiple scan lines (first scan line and second scan line) to scan sub-pixels in different sequences, transforming the traditional single-row scanning into a multi-dimensional scanning pattern
3Reliability
If more sub-pixel units are scanned sequentially, then display coverage is complete, but picture fluency is reduced
Solution Approach 1:
The patent implements dynamic scanning sequences where the order and timing of scanning different sub-pixel units can be adjusted to optimize both complete display coverage and picture fluency
Solution Approach 2:
The patent ensures continuous display by overlapping scan sequences of different sub-pixels, allowing the display to remain active and fluent while completing the scanning of all sub-pixel units
Data Source
AI summary
An array substrate, a display panel, a touch display device and a driving method for the same are disclosed. The array substrate includes: at least one pixel group pixel group including sub-pixel units arranged in four rows and two columns; three scan lines arranged row-wise and at least three data lines intersecting the scan lines. The sub-pixel units are electrically connected in a manner that different sub-pixel units are electrically connected to different combinations of a scan line and a data line.