Display Pixel Boundary Layout to Prevent Band Stains
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Solution Overview
Problem
The occurrence of band stains in the boundary region between display regions of a display device due to non-uniform intervals between pixels and dummy pixels, which affects display quality.
Innovation Solution
A display device design with uniform intervals between dummy pixels and adjacent pixels in the boundary region, ensuring consistent luminance and preventing visual defects such as band stains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If dummy pixels are disposed in the boundary region between display regions, then the display coverage is improved, but non-uniform intervals between pixels cause band stains that deteriorate display quality
Solution Approach 1:
The patent applies local quality by differentiating the interval specifications for dummy pixels from those for regular pixels. Specifically, the interval between a dummy pixel and an adjacent pixel is set to be smaller than the interval between adjacent regular pixels. This localized differentiation ensures uniform luminance distribution in the boundary region while maintaining overall display coverage.
2Stability of the object's composition
If the interval between dummy pixels and adjacent pixels is reduced, then luminance uniformity is improved, but the structural complexity of the pixel arrangement increases
Solution Approach 1:
The patent applies parameter changes by modifying the interval parameter specifically for boundary regions containing dummy pixels. The interval between dummy pixels and adjacent pixels is deliberately set to a smaller value compared to regular pixel intervals. This parameter adjustment simplifies the overall structure by ensuring uniform luminance without requiring complex additional components.
Data Source
AI summary
A display device includes a display panel, a plurality of first pixels disposed in a first region of the display panel, a plurality of second pixels disposed in a second region of the display panel adjacent to the first region, and a plurality of dummy pixels disposed in a boundary region of the display panel between the first region and the second region. Intervals between the second pixels and the dummy pixels are uniform along the boundary region.