Staggered Sub-Pixel Display Control for Jagged Edge Correction
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Solution Overview
Problem
Display devices with sub-pixels arranged in a staggered order exhibit clear jagged feelings at the edges of patterns such as vertical lines, oblique lines, curves, and color block patterns due to significant brightness differences.
Innovation Solution
Adjust the brightness of sub-pixels in feature pattern areas by performing gray scale transition corrections, ensuring brightness differences meet specific thresholds and utilizing interleaved sub-pixel arrangements to minimize color deviations at the edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If sub-pixels are arranged in a staggered order to achieve narrow borders, then the display area is increased, but clear jagged feelings appear at the edges of patterns
Solution Approach 1:
The patent applies different gray scale adjustment strategies to different regions of the display. Specifically, it identifies feature pattern areas (containing vertical lines, oblique lines, curves, or color blocks) and applies gray scale transition corrections only to sub-pixels within these areas, while leaving other regions unchanged. This localized approach resolves the jagged edge problem in critical areas without affecting the overall display quality or requiring changes to the staggered sub-pixel arrangement.
Solution Approach 2:
The patent changes the gray scale parameters of specific sub-pixels to eliminate jagged feelings. By detecting brightness differences between adjacent sub-pixels and adjusting the gray scale values of sub-pixels in feature pattern areas, the patent modifies the brightness parameter locally to create smoother transitions at pattern edges while maintaining the staggered sub-pixel arrangement that enables narrow borders.
2Object-affected harmful factors
If gray scale transition corrections are applied to sub-pixels in feature pattern areas, then visual jaggedness is reduced, but processing complexity increases
Solution Approach 1:
The patent performs preliminary detection of feature pattern areas and identification of sub-pixels requiring correction before applying gray scale adjustments. By pre-identifying vertical lines, oblique lines, curves, and color block patterns, and determining which sub-pixels fall within these areas, the patent prepares a correction map in advance. This preliminary action streamlines the processing by avoiding unnecessary calculations for sub-pixels that don't require correction.
Solution Approach 2:
The patent segments the display area into feature pattern areas and non-feature areas, and further segments sub-pixels into those requiring correction and those that don't. This segmentation allows the processing to focus only on relevant sub-pixels within feature pattern areas, reducing the overall computational complexity compared to processing the entire display area uniformly.
Data Source
AI summary
A display apparatus, a control module thereof and a drive method therefor, belonging to the technical field of display. The display apparatus includes a display panel having sub-pixels arranged out of sequence. The display apparatus can display a target picture according to received picture data of an initial picture. The display apparatus is configured to: when the initial picture has at least one feature pattern region, adjust the brightness of at least part of sub-pixels in the feature pattern region, so as to generate a target picture.