Display Panel Scan Control for Uneven Pixel Row Density
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Solution Overview
Problem
Display panels with irregularly shaped display regions experience delays in scan control due to differing pixel row densities, leading to visual screen splitting and impaired overall display quality.
Innovation Solution
Implementing a display panel design with distinct scan control circuits for each pixel row, adjusting the channel width-to-length ratio of transistors in scan control circuits to match pixel row ratios, ensuring single-sided driving for regions with varying pixel densities to minimize scan control delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the same scan control method is used for all pixel rows in irregular display regions, then the device complexity is reduced, but scan control delays occur between different regions affecting display quality
Solution Approach 1:
The patent applies local quality by configuring different scan control circuits with different channel width-to-length ratio parameters for output transistors according to the specific pixel row requirements. Each scan control circuit is locally optimized to match the pixel density of its corresponding region, ensuring synchronized scan control across irregular display areas without requiring complex global reconfiguration.
2Reliability
If different scan control circuits with adjusted transistor ratios are implemented for each pixel row, then scan control delays are reduced and display quality is improved, but the device complexity increases
Solution Approach 1:
The patent implements parameter changes by adjusting the channel width-to-length ratio of output transistors in scan control circuits to different values based on the pixel row requirements. This allows each scan control circuit to be tuned with specific electrical parameters that compensate for the varying numbers of pixels in different regions, achieving synchronized control while maintaining a relatively simple overall circuit architecture.
Data Source
AI summary
Provided are a display panel and a display device, where the number of pixels in a pixel row included in a first display region of the display panel is smaller than the number of pixels in a pixel row included in a second display region, a first scan line is electrically connected to one first scan control circuit, and a second scan line is electrically connected to two second scan control circuits, where in the case where the ratio of the number of pixels in the first pixel row to the number of pixels in the second pixel row is within a first preset range, smaller than a minimum value of the first preset range, or larger than a maximum value of the first preset range.