Display Panel Sub-Pixel Arrangement for Local Dimming
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Solution Overview
Problem
The light control accuracy of the brightness gray scale in dual cell display panels is low, which reduces the local dimming effect due to the fixed arrangement of sub-pixels and insufficient light control in areas near thin film transistors.
Innovation Solution
The display panel design includes a light control layer with thin film transistors and display pixel areas where the green sub-pixel is positioned close to the thin film transistor for improved light control and the blue sub-pixel is positioned away, allowing for finer control of brightness gray scale and increased local dimming effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the sub-pixels are arranged in a fixed pattern, then the manufacturing process is simple, but the light control accuracy is low and the local dimming effect is reduced
Solution Approach 1:
The patent applies local quality by differentiating the arrangement of sub-pixels based on their spatial relationship with thin film transistors. Specifically, green sub-pixels are positioned close to thin film transistors while blue sub-pixels are positioned away, creating locally optimized patterns that improve light control accuracy and local dimming effect without requiring complete redesign of the entire pixel array
Solution Approach 2:
The patent segments the pixel array into different regions based on their functional requirements. By dividing the display into areas with different sub-pixel arrangements (close to TFT vs. away from TFT), the patent enables differentiated light control characteristics in different segments, improving overall light control accuracy while maintaining manufacturing feasibility
2Manufacturing precision
If the blue sub-pixel is positioned close to the thin film transistor, then the light control in that area is improved, but the overall brightness uniformity is reduced
Solution Approach 1:
The patent applies local quality by differentiating the arrangement of sub-pixels based on their spatial relationship with thin film transistors. Specifically, green sub-pixels are positioned close to thin film transistors while blue sub-pixels are positioned away, creating locally optimized patterns that improve light control accuracy and local dimming effect without requiring complete redesign of the entire pixel array
Solution Approach 2:
The patent introduces asymmetry in the sub-pixel arrangement by deliberately positioning green sub-pixels closer to thin film transistors than blue sub-pixels. This asymmetric arrangement optimizes light control for specific functional requirements while maintaining overall display performance through compensatory positioning of other sub-pixel types
Data Source
AI summary
A display panel and a display device are disclosed, relating to the display technical field. The display panel comprises a display layer and a light control layer which are laminated, the light control layer comprises a plurality of light control pixel areas, the light control pixel areas comprise a thin film transistor, the display layer comprises a plurality of display pixel areas, and the display pixel areas comprise a green sub-pixel; the orthographic projection of the green sub-pixel on the light control pixel area is close to the area where the thin film transistor is located.