Display Device Sub-Pixel Arrangement for White Balance
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Solution Overview
Problem
Increasing pixel density in display devices to achieve higher definition often leads to degradation in image quality, as existing arrangements of sub-pixels can result in uneven color representation and white balance issues during the display of patterns.
Innovation Solution
A display device configuration featuring main pixels with sub-pixels of different colors arranged in specific directions and lengths, where the area difference between the largest and smallest sub-pixels is minimized, and input data is converted to corrected luminance levels to maintain balanced color representation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pixel density is increased to achieve higher definition, then resolution is improved, but image quality is degraded due to uneven color representation and white balance issues
Solution Approach 1:
The patent applies local quality by making different sub-pixels within the same pixel have different areas. Specifically, the first and second sub-pixels have a first area, while the third sub-pixel has a second area that is smaller than the first area. This local differentiation in sub-pixel areas compensates for the reduced pixel density, ensuring that color representation remains balanced and white balance is maintained even when overall pixel density is lowered to improve image quality
2Ease of manufacture
If sub-pixels are arranged in conventional configurations, then manufacturing is simplified, but color balance and white balance are uneven during pattern display
Solution Approach 1:
The patent applies asymmetry by arranging sub-pixels with different areas in a non-uniform configuration. The first and second sub-pixels have a first area while the third sub-pixel has a smaller second area. This asymmetric arrangement of sub-pixel areas within the pixel structure enables balanced color representation and proper white balance during pattern display, while still maintaining a relatively simple manufacturing process
Data Source
AI summary
According to one embodiment, a display device, includes a first main pixel, wherein the first main pixel comprises a first sub-pixel displaying a first color, a second sub-pixel displaying a second color different from the first color, and a third sub-pixel displaying a third color different from the first and second colors, the first and second sub-pixels are arranged in a second direction, the first and third sub-pixels are arranged in a first direction, and the second and third sub-pixels are arranged in the first direction, and each of the first and second sub-pixels has a first length in the first direction, and the third sub-pixel has a second length smaller than the first length in the first direction.