Delta Subpixel Arrangement for High-Resolution Display Aperture Ratio
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Solution Overview
Problem
High-resolution display devices face limitations in aperture ratio and luminance due to the RGB stripe structure, which reduces display quality and resolution as subpixel distances decrease.
Innovation Solution
A subpixel arrangement structure featuring a delta arrangement of red, green, and blue subpixels, where green subpixels are aligned along one axis and red and blue subpixels are alternately positioned along a perpendicular axis, allowing for increased aperture ratio and luminance while maintaining display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the RGB stripe structure is used to achieve high resolution, then the distance between subpixels decreases, but the aperture ratio and luminance are reduced
Solution Approach 1:
The patent transitions from the traditional linear RGB stripe arrangement to a two-dimensional delta arrangement where green subpixels are positioned at the vertices of triangles formed by red and blue subpixels. This spatial reconfiguration in multiple dimensions allows subpixels to be packed more efficiently, increasing the aperture ratio without compromising resolution.
Solution Approach 2:
The patent employs an asymmetric subpixel arrangement where green subpixels are positioned at the vertices of triangles, creating an uneven distribution pattern compared to the symmetric linear stripe structure. This asymmetric delta arrangement optimizes the use of available space, allowing larger subpixel openings while maintaining the required pixel density for high resolution.
2Manufacturing precision
If the RGB stripe structure is used to achieve high resolution, then the distance between subpixels decreases, but the luminance is reduced
Solution Approach 1:
By reconfiguring subpixels in a two-dimensional delta pattern rather than a one-dimensional stripe, the patent increases the effective light-emitting area. The triangular arrangement allows green subpixels to be positioned at vertices, maximizing their contribution to luminance while maintaining high pixel density.
Solution Approach 2:
The patent optimizes the local arrangement of subpixels by positioning green subpixels at the vertices of triangles formed by red and blue subpixels. This local configuration maximizes the light-emitting efficiency in critical areas, thereby increasing overall luminance without sacrificing resolution.
3Manufacturing precision
If the subpixel opening area is decreased to secure process margin, then the manufacturing precision is improved, but the aperture ratio and luminance are reduced
Solution Approach 1:
The delta arrangement in two dimensions allows for more efficient space utilization compared to the linear stripe structure. This enables larger opening areas to be achieved while maintaining the same pixel density, thereby improving aperture ratio without compromising the process margin required for manufacturing precision.
4Device complexity
If the RGB stripe structure is used, then the subpixel arrangement is simple, but the aperture ratio and luminance are reduced at high resolution
Solution Approach 1:
While the delta arrangement is more complex than the linear stripe structure, the patent implements it through a systematic pattern where green subpixels are consistently positioned at the vertices of triangles. This regular repeating pattern maintains manufacturing feasibility while achieving significantly higher aperture ratios compared to the traditional stripe structure.
Data Source
AI summary
A subpixel arrangement structure for a display device includes a plurality of unit pixels each having a red subpixel, a green subpixel, and a blue subpixel. The red, green, and blue subpixels form a delta arrangement. Green subpixels are disposed on a plurality of first subpixel arrangement lines, each of which extends along a direction of a first axis. Two red subpixels and two blue subpixels are alternately disposed along the first axis direction on a plurality of second subpixel arrangement lines. Each of the plurality of second subpixel arrangement lines is positioned between every two of the plurality of first subpixel arrangement lines and extends along the first axis direction.