OLED Pixel Arrangement Layout to Reduce Color Edges
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display technologies face challenges in achieving high resolution while minimizing color edge phenomena, color mixing, and visual granularity, particularly in organic light-emitting diode (OLED) displays, due to limitations in manufacturing processes and sub-pixel arrangement.
Innovation Solution
A pixel arrangement structure is introduced where first and second pixel units are alternately arranged in two directions, with sub-pixels forming mirror-symmetrical patterns after rotation, ensuring balanced compactness and pitch between sub-pixels, and incorporating different sub-pixel sizes and shapes to reduce color mixing and improve uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sub-pixel sizes are reduced and pitches between sub-pixels are reduced to improve resolution, then resolution is improved, but color mixing risk increases and color edge phenomenon worsens
Solution Approach 1:
The patent introduces asymmetric sub-pixel arrangement where different pixel units (first pixel units and second pixel units) have different sub-pixel configurations. After rotating the second pixel units by a predetermined angle, their sub-pixel arrangement structures become mirror-symmetrical to the first pixel units. This asymmetric design prevents regular color pattern repetition, reduces color mixing, and ameliorates color edge phenomenon while maintaining high resolution through compact sub-pixel spacing.
2Measurement precision
If sub-pixel arrangement is made more compact to improve resolution, then resolution is improved, but visual granularity increases
Solution Approach 1:
By implementing asymmetric sub-pixel arrangements with mirror-symmetrical relationships between rotated pixel units, the patent disrupts regular visual patterns that cause granularity perception. The non-uniform distribution of sub-pixel types and orientations prevents the eye from detecting repetitive structures, thereby reducing visual granularity while maintaining compact arrangement for high resolution.
Solution Approach 2:
The patent introduces rotational transformation as an additional dimensional operation to the traditional linear sub-pixel arrangement. By rotating second pixel units by a predetermined angle to achieve mirror-symmetry, the design adds angular variation to the spatial arrangement, creating more complex patterns that reduce visual granularity while maintaining compactness.
3Measurement precision
If sub-pixel pitches are reduced to improve resolution, then resolution is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent divides the pixel array into distinct first pixel units and second pixel units with different sub-pixel configurations. This segmentation allows each unit type to be manufactured and positioned independently with standard precision, while the overall high resolution is achieved through the alternating arrangement pattern. The modular unit structure simplifies manufacturing compared to requiring all sub-pixels to be positioned with ultra-high precision.
Data Source
AI summary
The present application relates to a pixel arrangement structure, including first sub-pixels, second sub-pixels, third sub-pixels, and fourth sub-pixels. Centers of two of the first sub-pixels arranged opposite to each other and centers of two of the second sub-pixels arranged opposite to each other are taken as vertices and are connected to form a virtual quadrilateral. The virtual quadrilateral includes two equal sides arranged opposite to each other, a short side and a long side arranged opposite to each other and connected to vertices of the equal sides. The short side of the virtual quadrilateral is not parallel to the long side of the virtual quadrilateral. One of the third sub-pixels or one of the fourth sub-pixels is arranged in the virtual quadrilateral, and the third sub-pixel and the fourth sub-pixel emits light in a same color.