Multi-primary LCD Subpixel Luminance Rendering
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Solution Overview
Problem
Multi-primary-color liquid crystal display devices face challenges in achieving smooth and high-definition display operations due to differences in luminance, chromaticity, and color temperature between subsets representing white, which affect resolution and display quality.
Innovation Solution
The device employs a rendering processing method where pixels are divided into subpixels with different luminances, allowing one subset to lend luminance to another, thereby minimizing differences in luminance, chromaticity, and color temperature between subsets, and optimizing subpixel arrangements to maintain high resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple subsets representing white are used in multi-primary-color display, then color reproduction range is broadened, but differences in luminance, chromaticity, and color temperature between subsets increase
Solution Approach 1:
The patent divides pixels into subpixels with different luminance characteristics and dynamically adjusts the luminance contribution of each subpixel through rendering processing. This allows the system to maintain consistent white point representation across different subsets while preserving the expanded color gamut benefits of multi-primary-color display.
Solution Approach 2:
Each pixel is segmented into multiple subpixels with different luminance properties. This segmentation enables independent control of luminance contribution from each subpixel, allowing the system to compensate for variations between subsets and maintain uniform white point representation across the display.
2Manufacturing precision
If rendering processing is implemented to balance luminance between subsets, then display quality is improved, but device complexity increases
Solution Approach 1:
The rendering processing that balances luminance between subsets is performed in advance on the input image data before it is sent to the display device. This preliminary processing eliminates the need for complex real-time hardware adjustments, simplifying the device structure while maintaining high display quality.
3Manufacturing precision
If subpixels with different luminances are used, then luminance balance between subsets is achieved, but resolution may be compromised
Solution Approach 1:
The patent applies different luminance characteristics to different subpixels based on their local requirements. Each subpixel is optimized for its specific function, with luminance properties tailored to achieve overall balance between subsets while maintaining the perceived resolution through appropriate subpixel arrangement and rendering techniques.
Data Source
AI summary
A multi-primary-color liquid crystal display device according to the present invention is adapted to conduct a display operation in at least four primary colors. The device has a plurality of pixels that form at least two different types of subsets. The device can perform rendering processing in which at least one of the pixels that form a first one of the at least two different types of subsets lends a luminance to a second type of subset. Each pixel includes a first sub-pixel and a second sub-pixel that could have mutually different luminance. The second type of subset borrows a luminance from one of the first and second sub-pixels of the at least one pixel that has the higher luminance.