Asymmetric Pixel Arrangement for Display Resolution
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Solution Overview
Problem
The challenge lies in manufacturing high-resolution display devices, as reducing pixel dimension and pitch increases manufacturing complexity and cost, particularly due to limitations in process accuracy with existing fine metal mask technology, leading to difficulties in achieving uniform sub-pixel distribution and symmetry.
Innovation Solution
A pixel arrangement structure comprising a plurality of minimum repetitive units with a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel, where connecting lines of their centers extend along specific directions, allowing for improved symmetry and space utilization, thereby enhancing resolution and reducing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pixel dimension and pixel pitch are reduced to increase resolution, then display quality is improved, but manufacturing precision requirements increase and manufacturing complexity increases
Solution Approach 1:
The patent applies asymmetry by arranging sub-pixels of different colors (first color, second color, third color) in asymmetric positions within the pixel unit. The connecting lines between sub-pixel centers extend along different directions, creating an asymmetric layout that optimizes optical performance while simplifying manufacturing constraints compared to traditional symmetric arrangements.
Solution Approach 2:
The patent transitions from conventional linear sub-pixel arrangements to a two-dimensional asymmetric configuration where sub-pixels are positioned according to specific geometric relationships involving connecting lines at different angles. This dimensional optimization allows achieving high resolution without proportionally increasing manufacturing precision requirements.
2Measurement precision
If pixel dimension and pixel pitch are reduced to increase resolution, then display quality is improved, but device complexity increases
Solution Approach 1:
The patent segments the pixel unit into distinct sub-pixel regions (first color sub-pixel, second color sub-pixel, third color sub-pixel) with clearly defined boundaries and positions. Each sub-pixel is arranged according to specific geometric rules involving connecting lines, which simplifies the manufacturing process by providing clear segmentation guidelines while achieving high resolution.
Solution Approach 2:
The patent implements local quality by assigning different spatial arrangements and orientations to sub-pixels of different colors within the same pixel unit. The connecting lines between sub-pixel centers extend along different directions, creating locally optimized configurations that reduce overall device complexity while maintaining high resolution performance.
3Ease of manufacture
If conventional sub-pixel arrangement is used, then manufacturing process is simpler, but symmetry and space utilization are insufficient
Solution Approach 1:
The patent deliberately introduces asymmetry in the sub-pixel arrangement where connecting lines between sub-pixel centers extend along different directions. This asymmetric design achieves superior symmetry in the overall optical performance and space utilization while remaining compatible with existing manufacturing processes, thus resolving the contradiction between manufacturing simplicity and geometric symmetry.
Data Source
AI summary
A pixel arrangement structure, a display substrate, a display device, and a mask plate group. The pixel arrangement structure includes multiple minimum repeat units arranged in an array; each minimum repeat unit includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel; a first connecting line between the centers of the first color sub-pixel and the second color sub-pixel extends along a first direction, and a second connecting line between the centers of the first color sub-pixel and the third color sub-pixel extends along a second direction; the orthographic projection of the first color sub-pixel on a first straight line falls into the orthographic projection of the third color sub-pixel on the first straight line, and the orthographic projection of the first color sub-pixel on a second straight line falls into the orthographic projection of the second color sub-pixel on the second straight line.