Display Panel Boundary Pixels for Full-Screen Color Uniformity
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Solution Overview
Problem
Existing display panels with optical elements under the screen suffer from visible boundaries between areas of different pixel densities, leading to a sense of heterogeneity in luminance and color, limiting the realization of a full-screen display.
Innovation Solution
A display panel design with a first pixel area, a second pixel area, and a boundary pixel area, where the boundary pixel area includes emission regions with controlled luminance gradients and spatial periods to match those of the second pixel area, reducing the visual distinction and enhancing color uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If an optical element is disposed in a notch area or punch hole to enable full-screen display, then the screen area is enlarged, but the boundary between display area and non-display area becomes visually recognizable
Solution Approach 1:
The patent applies local quality by creating a boundary pixel area with different pixel density characteristics than the main display area. Specifically, the boundary pixel area has a first pixel density while the second pixel area has a second pixel density, allowing the boundary region to be visually blended with the main display area while the notch area remains functional. This local differentiation resolves the contradiction by making the boundary imperceptible while maintaining full-screen appearance.
2Area of stationary object
If an optical element is disposed under the display panel to achieve full-screen display, then the screen area is maximized, but a sense of heterogeneity occurs in luminance and color between areas with different pixel densities
Solution Approach 1:
The patent applies parameter changes by adjusting the pixel density parameter in the boundary pixel area to be different from the second pixel area. The boundary pixel area has a first pixel density that creates a gradual transition in luminance and color characteristics, eliminating the sense of heterogeneity. This parameter adjustment allows the boundary region to visually blend with both the main display area and the notch area, achieving uniform appearance across the entire screen.
3Area of stationary object
If pixel density is reduced in a boundary area to accommodate optical elements, then full-screen display is enabled, but visible boundaries and heterogeneity appear between high and low pixel density areas
Solution Approach 1:
The patent applies segmentation by dividing the display panel into three distinct areas: a first pixel area, a boundary pixel area, and a second pixel area. The boundary pixel area is segmented with specific first pixel density characteristics that differ from the second pixel area, creating a transition zone. This segmentation allows each area to have optimized pixel density for its specific function while maintaining overall visual uniformity, resolving the contradiction between full-screen display and pixel density uniformity.
Data Source
AI summary
The present disclosure relates to a display panel, and a display device and a mobile terminal including the same. The display panel includes a first pixel area, a second pixel area, and a boundary pixel area disposed between the first pixel area and the second pixel area. The boundary pixel area includes a plurality of first emission regions and a plurality of second emission regions. The maximum luminance of the first emission region decreases as the distance from the second pixel area increases, and the maximum luminance of the second emission region increases as the distance from the second pixel area increases.