AMOLED Display Panel Conductive Bus Layout for Signal Uniformity
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Solution Overview
Problem
Existing AMOLED display panels face challenges in optimizing pixel circuit design to improve display effect and signal uniformity, particularly in the distribution of constant voltage lines and power buses, which affect the overall performance and efficiency.
Innovation Solution
The display panel incorporates a conductive line with first and second branches, connected to constant voltage lines and power buses, arranged in specific directions and layers to enhance signal uniformity and improve display effect, utilizing a conductive bus that extends between power buses and includes branches with obtuse angles and arcs to optimize voltage distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If constant voltage lines and power buses are arranged in conventional layouts, then device complexity is reduced, but signal uniformity and display effect deteriorate
Solution Approach 1:
The conductive line is divided into multiple segments including a conductive bus and at least two branches. Each branch connects to different power buses (first power bus and second power bus) and extends in different directions. This segmentation allows optimized voltage distribution to different sub-pixel regions, improving signal uniformity across the display panel while managing the complexity through systematic structural division.
2Ease of manufacture
If conductive lines are simplified for easier manufacture, then ease of manufacture improves, but voltage distribution uniformity and display performance worsen
Solution Approach 1:
Different segments of the conductive line structure serve different local functions: the conductive bus provides main voltage transmission, while branches extend in specific directions to supply voltage to different sub-pixel regions. The first branch extends in a first direction to reach one set of sub-pixels, while the second branch extends in a second direction for another set, ensuring localized voltage optimization without requiring complete redesign of the entire conductive network.
Data Source
AI summary
Provided are a display panel and a display device. The display panel includes: a base substrate, including a display region and a peripheral region, the peripheral region being located on at least one side of the display region; a plurality of sub-pixels, located in the display region; a plurality of constant voltage lines, arranged in a first direction, each of the plurality of constant voltage lines extending in a second direction, the constant voltage line being at least partially located in the display region, and the first direction intersecting with the second direction; and a conductive line, located in the peripheral region, and connected with the plurality of constant voltage lines, the plurality of constant voltage lines being configured to provide a constant voltage to the plurality of sub-pixels.