Array Substrate Scan Line Grouping for Pixel Charging
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Solution Overview
Problem
In large and high-resolution display panels, the overload on scan lines leads to charging delays and affects the display effect due to insufficient voltage for turning on all thin-film transistors, causing delays in pixel charging.
Innovation Solution
The implementation of an array substrate with multiple pixel circuit rows and scan line groups, where each scan line group consists of multiple scan lines that provide simultaneous signals to pixel circuits, reducing the load on each scan line and ensuring timely charging by dividing the pixel circuits across multiple scan lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single scan line is used to connect all pixel circuits in a row, then the device complexity is reduced, but the scan line becomes overloaded causing charging delay
Solution Approach 1:
The patent divides a single scan line into multiple scan lines (first scan line and second scan line) to connect different groups of pixel circuits. Specifically, pixel circuits are divided into first pixel circuits connected to the first scan line and second pixel circuits connected to the second scan line. This segmentation reduces the load on each individual scan line, preventing overload and charging delays while maintaining manageable device complexity.
2Loss of time
If multiple scan lines are used to reduce load, then charging delay is reduced, but the device complexity increases
Solution Approach 1:
The patent combines multiple scan lines (first scan line and second scan line) into a unified scan line group that works together to drive the entire row of pixel circuits. The scan line group is controlled as a coordinated unit, with both scan lines receiving scan signals from the same scan signal line. This merging approach distributes the load across multiple lines while maintaining systematic control, reducing charging delays without excessively increasing device complexity.
Data Source
AI summary
Provided are an array substrate, a display panel, a display device, and a driving method. The array substrate includes a plurality of pixel circuit rows arranged in sequence in a column direction, where each pixel circuit row includes a plurality of pixel circuits arranged in a row direction; and a plurality of scan line groups arranged in sequence in the column direction, where the scan line groups are in one-to-one correspondence with the pixel circuit rows. The each pixel circuit row includes a plurality of pixel circuit groups. Each scan line group includes a plurality of scan lines. Each scan line extends in the row direction. The pixel circuit groups are in one-to-one correspondence with the scan lines in a scan line group corresponding to the pixel circuit groups.