Display Defect Compensation Using Peripheral Pixel Interpolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The issue of uneven brightness levels in display panels, particularly when compensating for defective regions, leads to uneven compensation and affects the display effect.
Innovation Solution
A method and apparatus for compensating display defects involve acquiring captured images of the display panel, identifying defective and normal regions, performing interpolation computations to obtain compensation pixel values, and updating pixel values to form a compensation image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If pixel values at the periphery of a defective region are used to compensate for defective pixels, then the compensation process is simplified, but the compensation uniformity deteriorates when pixel values change greatly
Solution Approach 1:
The patent divides the display panel into defective regions and normal regions, and further divides normal regions into different types (first normal region adjacent to defective region, second normal region not adjacent) based on their spatial relationship to defective pixels. Different compensation strategies are applied to different regions: pixels in the first normal region are used for compensation while pixels in the second normal region are not used, ensuring compensation uniformity by selecting only appropriate neighboring pixels for interpolation calculations.
2Loss of time
If a simple replacement method is used to compensate defective pixels, then the processing time is reduced, but the display quality deteriorates due to uneven brightness
Solution Approach 1:
The patent segments the pixel array into defective pixels and normal pixels, then further segments normal pixels into first normal pixels (adjacent to defective pixels) and second normal pixels (not adjacent). This segmentation enables selective use of only the most suitable neighboring pixels for compensation, improving display quality while maintaining efficient processing by avoiding unnecessary calculations with distant pixels.
Solution Approach 2:
The patent performs preliminary identification and classification of pixels into defective, first normal, and second normal categories before the compensation calculation. This preliminary action organizes the pixel data structure in advance, allowing the compensation algorithm to quickly access and process only the relevant first normal pixels, thereby reducing processing time while ensuring high display quality through selective interpolation.
Data Source
AI summary
A method and apparatus for compensating a display defect, a medium, an electronic device, and a display apparatus. The method comprises: selecting a pixel value of a normal region at the periphery of a defective region to perform interpolation with respect to the defective region, so as to determine a compensation pixel value for the defective region at a preset brightness level; and updating a pixel value of the defective region at the preset brightness level with the compensation pixel value.