Staggered Pixel Sub-pixel Output Adjustment for Resolution
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Solution Overview
Problem
Conventional image display devices experience a decrease in apparent resolution due to an increase in the number of sub-pixels per pixel, as the area used for color extension increases, leading to inefficient use of sub-pixels.
Innovation Solution
An image display device with first and second pixels, each comprising sub-pixels of four colors within specific color gamuts, arranged in a staggered matrix, where a processing unit determines the output of sub-pixels based on input image signals, adjusting outputs when sub-pixels with the same color component are continuously lit and show a predetermined difference, to optimize color extension and maintain high resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of sub-pixels per pixel is increased to improve color extension capability, then the area used for color extension increases, but the apparent resolution is lowered
Solution Approach 1:
The pixel is divided into multiple sub-pixels with different color components (R, G, B, W) arranged in a specific pattern. By segmenting the pixel into functional units with distinct color roles, the system can selectively activate sub-pixels based on the input image signal, improving color extension capability while maintaining resolution through precise control of each sub-pixel's contribution.
Solution Approach 2:
Different sub-pixels within the same pixel are assigned different colors (R, G, B, W) and are activated based on local requirements of the input image signal. This local differentiation allows optimal color extension in specific regions while preserving high resolution through selective sub-pixel activation, rather than uniformly using all sub-pixels.
2Adaptability or versatility
If multiple sub-pixels are lit for color extension, then color extension capability is improved, but power consumption increases
Solution Approach 1:
Instead of lighting all sub-pixels simultaneously for color extension, the system selectively activates only the necessary sub-pixels based on the input image signal requirements. This partial action approach achieves the required color extension capability while minimizing power consumption by keeping unnecessary sub-pixels in the off state.
Solution Approach 2:
The output intensity of each sub-pixel is dynamically adjusted based on the input image signal and the specific color extension requirements. By changing the output parameters of individual sub-pixels rather than uniformly activating all of them, the system achieves effective color extension with optimized power consumption.
3Manufacturing precision
If sub-pixel area is reduced to maintain resolution, then apparent resolution is maintained, but color extension area decreases
Solution Approach 1:
The patent introduces a temporal dimension to color extension by selectively activating different sub-pixels at different times based on the input image signal. This temporal multiplexing allows the system to maintain small sub-pixel areas for high resolution while achieving effective color extension through sequential activation, effectively adding a time dimension to the color extension process.
Data Source
AI summary
An image display device comprises an image display unit including first pixels and second pixels arranged in a staggered manner, the first pixels including sub-pixels arranged in a matrix in a first color gamut and second pixels including sub-pixels arranged in a matrix in a second color gamut different from the first color gamut; and a processing unit that determines an output of the sub-pixels corresponding to an input image signal. When sub-pixels including same color component are continuously lit in a straight line and there is a difference between outputs from adjacent sub-pixels including the same color component, the processing unit determines the output of the sub-pixels in the first pixel based on the first component after an adjustment component is eliminated, and determines the output of the sub-pixels included in the second pixel based on the second component and the adjustment component.