Display Subpixel Layout for Uniform White Line Resolution
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Solution Overview
Problem
Current display devices face challenges in achieving high resolution and uniformity in displaying white lines due to limitations in subpixel layouts, particularly in delta-nabla layouts where the centroids of subpixels are not optimally positioned, leading to non-uniform thickness and resolution issues.
Innovation Solution
The display device employs a subpixel layout where subpixels of different colors are cyclically arranged along axes, with their centroids positioned at different locations to achieve optimal alignment and spacing, allowing for precise control of luminance and improved resolution through the use of a driver IC that adjusts the luminance of green subpixels to achieve uniform white line widths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If subpixels are arranged in conventional delta-nabla layout, then the display device can achieve color display functionality, but the resolution and uniformity of white lines are insufficient due to non-optimal centroid positioning
Solution Approach 1:
The patent applies asymmetry by positioning the centroids of green subpixels at different X-coordinates within the same subpixel row, creating an asymmetric distribution pattern. Specifically, first green subpixels have centroids at a first X-coordinate while second green subpixels have centroids at a second X-coordinate that differs from the first. This asymmetric arrangement optimizes the luminance distribution and achieves uniform white line display while maintaining color accuracy.
Solution Approach 2:
The patent introduces an additional degree of freedom in the X-direction by varying the centroid positions of green subpixels along the X-axis within the same row. Traditionally, subpixels in a row are positioned at fixed intervals, but this patent utilizes the X-dimension more effectively by creating multiple centroid positions (first X-coordinate and second X-coordinate), thereby achieving finer control over luminance distribution and white line uniformity.
2Manufacturing precision
If subpixels are densely packed to improve resolution, then the display resolution increases, but the uniformity of white line thickness deteriorates due to insufficient spacing control
Solution Approach 1:
The patent applies local quality by assigning different X-coordinates to different green subpixels within the same row based on their specific positions and functions. First green subpixels are positioned at a first X-coordinate while second green subpixels are positioned at a second X-coordinate. This localized positioning strategy allows precise control over the luminance contribution of each green subpixel, enabling uniform white line thickness even when subpixels are densely packed.
Data Source
AI summary
The display region includes a plurality of subpixel lines. Each of the plurality of subpixel lines include subpixels of a first color, subpixel pairs of a second color, and subpixels of a third color disposed cyclically one by one along a first axis. Between two adjacent subpixel lines, subpixels of the first color are disposed at different positions along the first axis. Between the two adjacent subpixel lines, subpixel pairs of the second color are disposed at different positions along the first axis. Between the two adjacent subpixel lines, subpixels of the third color are disposed at different positions along the first axis. The centroids of two subpixels constituting a subpixel pair of the second color are located at different positions when seen along the first axis and when seen along a second axis perpendicular to the first axis.