Display Panel Luminance and Color Pixel Segmentation
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Solution Overview
Problem
Current display panels struggle to simultaneously achieve high luminance and high color-saturation images while maintaining high resolution, especially in structures like RGBW and WRGB subpixel arrangements, which often compromise on sharpness and contrast due to limitations in subpixel rendering and color gamut.
Innovation Solution
A display panel comprising luminance pixels and color pixels, where luminance pixels output higher luminance and color pixels output higher color purity, with a controller that separates and adjusts input image data to optimize luminance and color gamut, and arranges pixels in a checkerboard pattern to enhance image display, particularly in areas with varying color saturation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If RGBW subpixel structure is used to increase luminance, then luminance is improved, but color saturation deteriorates
Solution Approach 1:
The display panel is divided into two distinct pixel types: luminance pixels (including WRGB subpixels) dedicated to high luminance output, and color pixels (including RGB subpixels) dedicated to high color saturation output. This segmentation allows each pixel type to optimize its specific function without compromising the other, resolving the contradiction between luminance and color saturation.
Solution Approach 2:
Different regions of the display panel have different functional qualities: luminance pixels are optimized for brightness with white subpixels added, while color pixels are optimized for color purity with standard RGB subpixels. This local differentiation of quality allows simultaneous achievement of high luminance in appropriate areas and high color saturation in other areas.
2Measurement precision
If subpixel rendering is applied to improve resolution, then resolution is improved, but sharpness and contrast deteriorate
Solution Approach 1:
The display panel is segmented into luminance pixels and color pixels arranged in a checkerboard pattern, providing sufficient pixel density to achieve high resolution without requiring aggressive subpixel rendering techniques that would compromise sharpness and contrast.
3Reliability
If color pixels are used to improve color saturation, then color purity is improved, but luminance output deteriorates
Solution Approach 1:
The display panel is divided into two distinct pixel types: luminance pixels (including WRGB subpixels) dedicated to high luminance output, and color pixels (including RGB subpixels) dedicated to high color saturation output. This segmentation allows each pixel type to optimize its specific function without compromising the other, resolving the contradiction between luminance and color saturation.
Data Source
AI summary
Disclosed is an image display apparatus including a display panel having a plurality of pixels, and a controller configured to control the display panel, wherein the plurality of pixels includes luminance pixels including subpixels of multiple colors and color pixels including subpixels of multiple colors, and wherein the luminance pixels output light with luminance higher than luminance of the color pixels and the color pixels output light with color purity higher than color purity of the luminance pixels. Accordingly, a high luminance and high color-saturation image may be displayed with the image display apparatus including the luminance pixels and the color pixels.