OLED Array Substrate Wiring Layout for Viewing-Angle Color Shift
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional OLED display panels suffer from significant color shift and visual effects issues due to changes in viewing angle, which affects brightness, contrast, and color gamut, particularly in high-quality displays used in medical and graphic design fields.
Innovation Solution
An array substrate design featuring a base substrate with a wiring layer and an effective light-emitting layer, where the first and second wiring layers are strategically positioned to form overlapping areas on both sides of the central line of the light-emitting layer, ensuring uniform layer heights and reducing inclination, thereby minimizing color shift.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional OLED display panels are used, then the display can be manufactured with standard wiring layer structures, but significant color shift and visual effects issues occur due to changes in viewing angle
Solution Approach 1:
The patent applies local quality by creating different overlapping areas with different wiring patterns. Specifically, a first overlapping area has a first wiring pattern while a second overlapping area has a second wiring pattern, allowing different regions of the display to have optimized characteristics for their specific viewing angles, thereby reducing overall color shift while maintaining manufacturability
Solution Approach 2:
The patent segments the wiring layer into multiple distinct patterns located at different overlapping areas. The display panel is divided into regions with different wiring configurations (first wiring pattern in first overlapping area, second wiring pattern in second overlapping area), enabling targeted optimization for different viewing scenarios without requiring complete redesign of the entire structure
2Manufacturing precision
If the wiring layer is positioned to improve display quality, then color shift is reduced, but the structural complexity of the layer arrangement increases
Solution Approach 1:
The patent implements partial action by applying wiring pattern optimization only to specific overlapping areas where color shift is most problematic, rather than uniformly across the entire display. This selective approach reduces color shift in critical regions while avoiding the complexity of redesigning the entire layer structure
Solution Approach 2:
Different overlapping areas are assigned different wiring patterns based on their specific requirements. The first overlapping area receives a first wiring pattern optimized for its viewing characteristics, while the second overlapping area receives a second wiring pattern, allowing localized optimization without global complexity
Data Source
AI summary
Disclosed are an array substrate and a display panel, including: a base substrate; and a wiring layer and a light-emitting layer which are stacked on the base substrate sequentially, wherein the wiring layer includes a signal wiring, a first wiring and a second wiring, a projection of the first wiring on the base substrate is separated from a projection of the second wiring on the base substrate, the first and second wiring are respectively disposed on two sides of the light-emitting layer below the light-emitting layer, the signal wiring is between the first and second wiring, the projections of the first and second wiring on the base substrate respectively overlap projections of two edges of the light-emitting layer on the base substrate, and a length of the second wiring is less than that of the signal wiring in an extension direction of the signal wiring.