OLED Sub-Pixel Layout to Reduce Light Stealing
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Solution Overview
Problem
Existing organic light-emitting display panels face challenges in achieving linearity and higher image clarity and softness, leading to poor display effects due to the phenomenon of 'light stealing' caused by charge propagation between sub-pixels.
Innovation Solution
The display panel arrangement includes first, second, and third sub-pixels with specific overlapping and positional configurations to reduce charge propagation paths and leakage currents, improving image linearity and clarity by staggering sub-pixels in different columns and adjusting their overlap areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If sub-pixels are arranged in conventional configurations, then manufacturing is simplified, but display image linearity and clarity deteriorate due to light stealing phenomena
Solution Approach 1:
The invention divides sub-pixels into different types (first sub-pixels, second sub-pixels, third sub-pixels) with different colors and arranges them in specific column patterns. This segmentation allows control over charge propagation paths between different sub-pixel types, reducing light stealing while maintaining manufacturing feasibility through systematic arrangement patterns.
Solution Approach 2:
The patent applies different arrangement strategies to different sub-pixel types. First sub-pixels of a first color are arranged in first columns, second sub-pixels of a second color in second columns, and third sub-pixels of a third color in third columns. This local differentiation optimizes charge isolation for each sub-pixel type while maintaining overall display quality.
2Manufacturing precision
If sub-pixels are closely arranged to improve resolution, then image clarity improves, but charge propagation between sub-pixels increases causing light stealing
Solution Approach 1:
The invention introduces column structures as intermediary zones between sub-pixels of different colors. By arranging first sub-pixels in first columns, second sub-pixels in second columns, and third sub-pixels in third columns, the column arrangement acts as a spatial mediator that controls and reduces charge propagation paths between adjacent sub-pixels, thereby minimizing light stealing while maintaining high image clarity.
3Manufacturing precision
If overlapping sub-pixel configurations are used to improve image softness, then image quality improves, but charge leakage between sub-pixels increases
Solution Approach 1:
The patent employs asymmetric overlapping arrangements where first sub-pixels, second sub-pixels, and third sub-pixels overlap in non-uniform patterns. Specifically, first sub-pixels overlap with second sub-pixels in a first direction, while second sub-pixels overlap with third sub-pixels in a second direction. This asymmetric design optimizes image softness through controlled overlaps while maintaining charge isolation by preventing symmetric charge propagation paths.
Data Source
AI summary
A display panel is provided by the present application. The display panel includes a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels. Center points of at least part of the plurality of first sub-pixels are arranged in a first column along a first direction, center points of at least part of the plurality of second sub-pixels are arranged in a second column along the first direction, and center points of at least part of the plurality of third sub-pixels are arranged in a third column along the first direction. One of the first sub-pixels in the first column is arranged between adjacent two of the second sub-pixels in the second column, and the one of the first sub-pixels in the first column is partially overlapped with the adjacent two of the second sub-pixels in the second column along the first direction.