Irregular-Shaped Sub-Pixel Design for Display Edge Color Cast
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Solution Overview
Problem
Irregular-shaped display devices experience poor display effects, particularly at their edges, due to color casts caused by irregular-shaped sub-pixels having smaller aperture areas and different shapes compared to regular sub-pixels.
Innovation Solution
A display substrate design that includes both irregular-shaped and regular sub-pixels, where adjacent pixel units share sub-pixels to maintain consistent display quality, with the irregular-shaped sub-pixels' shapes and aperture areas adjusted to match those of regular sub-pixels, preventing color casts and enhancing brightness at irregular-shaped edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If irregular-shaped sub-pixels are used to create non-rectangular display screens, then the display device can achieve irregular shapes, but the aperture area of sub-pixels at edges becomes smaller and different from regular sub-pixels, causing color casts and poor display effect
Solution Approach 1:
The patent applies local quality by differentiating between first pixel units (at irregular edges) and second pixel units (in regular areas). First pixel units contain irregular-shaped sub-pixels adapted to edge geometry, while second pixel units contain regular sub-pixels. This localized differentiation allows the display to achieve irregular overall shape while maintaining regular sub-pixel structures in most areas, thus avoiding color casts at edges.
Solution Approach 2:
The display screen is segmented into multiple pixel units, where each pixel unit can be independently configured. First pixel units at irregular edges are segmented to contain only irregular-shaped sub-pixels, while second pixel units in regular areas contain regular sub-pixels. This segmentation allows independent optimization of edge and interior display quality, resolving the contradiction between irregular shape and display precision.
2Adaptability or versatility
If irregular-shaped sub-pixels are used at edges, then the display can achieve non-rectangular shapes, but the chromaticity and brightness become inconsistent compared to regular sub-pixels
Solution Approach 1:
The patent implements local quality by configuring different sub-pixel structures in different regions. First pixel units at irregular edges use irregular-shaped sub-pixels, while second pixel units in regular areas use regular sub-pixels. This regional differentiation maintains chromaticity consistency within each region type, allowing the overall display to achieve irregular shape without compromising local color stability.
Solution Approach 2:
The display is divided into segmented pixel units with consistent internal configurations. Each first pixel unit contains irregular-shaped sub-pixels with uniform design, and each second pixel unit contains regular sub-pixels with uniform design. This segmentation ensures that chromaticity remains stable within each segment type, preventing color variation across the irregular-shaped display.
3Adaptability or versatility
If irregular-shaped sub-pixels are used, then the display device can achieve non-rectangular shapes, but the brightness at irregular-shaped edges becomes insufficient
Solution Approach 1:
The patent applies local quality by optimizing sub-pixel structures for their specific locations. First pixel units at irregular edges use irregular-shaped sub-pixels designed to maximize light output within the constrained geometry, while second pixel units in regular areas use standard high-brightness regular sub-pixels. This localized optimization ensures adequate brightness at edges while maintaining overall display quality.
Solution Approach 2:
The display is segmented into edge pixel units and interior pixel units, each with brightness-optimized sub-pixel designs. This segmentation allows independent brightness optimization for edge regions with geometric constraints, ensuring that irregular-shaped edges achieve sufficient illumination intensity without compromising the overall display performance.
Data Source
AI summary
The present disclosure provides a display substrate, display panel and display device, for improving display effect at irregular-shaped edge. The display substrate includes at least one first region. The first region includes a plurality of pixel units, which includes a first pixel unit and a second pixel unit, the first pixel unit is adjacent to the connecting edge. The first pixel unit includes at least three sub-pixels corresponding to different colors arranged along row direction, and at least one sub-pixel included in the first pixel unit is an irregular-shaped sub-pixel. The second pixel unit includes at least three sub-pixels corresponding to different colors arranged along a row direction, and the sub-pixels included in the second pixel unit each are a regular sub-pixel. A shape of the irregular-shaped sub-pixel is different from that of the regular sub-pixel. Along the row direction, adjacent first and second pixel units share at least one sub-pixel.