Display Substrate Layout for Uniform Virtual Pixel Centers
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Solution Overview
Problem
Conventional display technologies face challenges in achieving high resolution due to nonuniform distribution of brightness centers in pixel arrangement structures, leading to graininess and distortion during image display.
Innovation Solution
A display substrate design with first, second, and third sub-pixels arranged in specific alternating patterns, forming virtual quadrilaterals with non-coincident symmetry axes and varying distances between pixel centers, ensuring uniform brightness distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sub-pixel sizes are reduced and pixel pitches are reduced to increase resolution, then resolution is improved, but manufacturing precision and production level requirements increase significantly
Solution Approach 1:
The patent divides each pixel into multiple sub-pixels (first sub-pixels, second sub-pixels, third sub-pixels) arranged in alternating patterns. This segmentation allows the system to achieve higher effective resolution through sub-pixel rendering while maintaining the same physical sub-pixel size, thereby avoiding the need to reduce individual sub-pixel dimensions and the associated manufacturing precision challenges.
Solution Approach 2:
The patent introduces a virtual pixel arrangement dimension by creating virtual quadrilaterals from combinations of physical sub-pixels. By arranging sub-pixels in alternating patterns and forming virtual pixels through combinatorial arrangements, the system achieves resolution enhancement in the visual output dimension without changing the physical manufacturing dimension.
2Ease of manufacture
If conventional pixel arrangement structures are used, then manufacturing is simpler, but brightness centers of virtual pixels are nonuniformly distributed causing graininess and distortion
Solution Approach 1:
The patent employs asymmetric alternating arrangements where first sub-pixels and third sub-pixels are positioned at different locations relative to second sub-pixels. This asymmetric configuration creates virtual quadrilaterals with non-coincident symmetry axes, which in turn produces uniform brightness center distribution. The asymmetry in sub-pixel positioning resolves the uniformity problem while maintaining manufacturing simplicity.
Solution Approach 2:
The patent applies different positioning strategies to different types of sub-pixels within the same pixel structure. First sub-pixels, second sub-pixels, and third sub-pixels are arranged with specific local relationships (alternating rows and columns) to optimize brightness distribution. This local quality differentiation ensures uniform brightness centers while keeping the overall manufacturing process simple.
Data Source
AI summary
Display substrate, display device, high-precision metal mask are provided. Display substrate includes: first, second, and third sub-pixels; in first direction, first and third sub-pixels are alternately arranged to form first sub-pixel rows, second sub-pixels form second sub-pixel rows; in second direction, first and second sub-pixel rows are alternately arranged; two first and two third sub-pixels in two adjacent rows and two adjacent columns form 2*2 array; in the array, two first sub-pixels are in different rows and in different columns, so are the two third sub-pixels, connection lines of centers of two first and two third sub-pixels form virtual quadrilateral, second sub-pixel is within virtual quadrilateral; for multiple distances from centers of two first and two third sub-pixels corresponding to same virtual quadrilateral to center of second sub-pixel, at least two distances are different. Brightness centers of virtual pixels have more uniform distribution.