Display Panel Pixel Island Layout for AR Light Transmittance
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Solution Overview
Problem
Conventional display panels with active light emitting structures, such as OLEDs, suffer from non-uniform threshold voltage issues and increased space occupation by pixel driving circuits, leading to poor light transmittance and a 'screen window effect' when used in augmented reality applications.
Innovation Solution
A display panel design featuring pixel regions with a pixel island and a transparent region, where K active display areas are arranged in a matrix, and K pixel driving circuits are uniformly distributed in sub-regions, minimizing signal line density and improving light transmittance by avoiding concentrated opaque regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If pixel driving circuits are concentrated in a specific region, then device complexity is reduced, but light transmittance uniformity deteriorates and screen window effect occurs
Solution Approach 1:
The patent divides the pixel driving circuits into multiple groups distributed across different pixel regions. Instead of concentrating all driving circuits in one area, each pixel region contains its own driving circuits, which segments the opaque regions and distributes them uniformly across the display panel, thereby maintaining light transmittance uniformity while managing device complexity.
Solution Approach 2:
The patent applies local quality by making each pixel region self-contained with its own driving circuits. This local arrangement ensures that each region has the necessary functional components while maintaining uniform optical properties across the entire display, resolving the conflict between circuit integration and light transmittance uniformity.
2Manufacturing precision
If pixel density is increased, then display resolution is improved, but area occupied by pixel driving circuits increases
Solution Approach 1:
The patent transitions from a centralized two-dimensional layout of pixel driving circuits to a distributed three-dimensional arrangement where driving circuits are integrated within multiple pixel regions. This dimensional redistribution allows higher pixel density without proportionally increasing the total area occupied by driving circuits, as they are spread throughout the display volume rather than concentrated in one plane.
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a plurality of pixel regions, each pixel region including a pixel island and a transparent region located on a periphery of the pixel island. The pixel island includes K active display area, a distance between adjacent ones of the K active display area in the pixel island is less than a distance between pixel islands of adjacent ones of the plurality of pixel regions. Each of the plurality of pixel regions includes K sub-regions with approximately equal areas, K pixel driving circuits are respectively disposed in the K sub-regions, the K pixel driving circuits are configured to respectively drive the K active display areas, and the K is an integer greater than or equal to 2.