Display Panel Voltage Mesh for Round-Edge Luminance Uniformity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Luminance drop occurs in pixels adjacent to the round-type edge of a display panel, reducing display quality.
Innovation Solution
The display panel includes a first and second constant voltage transfer line extending from a constant voltage transfer electrode via different edges, with horizontal and vertical transfer lines forming a mesh shape to ensure adequate voltage signal delivery to pixels near the round-type edge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single constant voltage transfer line is used to supply voltage to pixels, then the structure is simple, but luminance drop occurs in pixels adjacent to the round-type edge
Solution Approach 1:
The patent divides the constant voltage transfer path into multiple separate lines: a first constant voltage transfer line extending from the flat-type edge and a second constant voltage transfer line extending from the round-type edge. This segmentation allows independent voltage delivery paths to reach different pixel regions, preventing voltage depletion and luminance drop in pixels adjacent to the round-type edge while maintaining overall structural simplicity.
Solution Approach 2:
The patent introduces a vertical transfer line that extends in a direction perpendicular to the plane of the display panel, crossing through multiple layers. This vertical dimension provides an additional voltage transfer pathway to pixels adjacent to the round-type edge, ensuring adequate voltage supply without increasing the planar complexity of the transfer line structure.
2Reliability
If multiple transfer lines are added to prevent luminance drop, then display quality improves, but device complexity increases
Solution Approach 1:
The horizontal transfer line serves multiple functions: it electrically connects both the first and second constant voltage transfer lines, and also connects to the vertical transfer line. This multi-functionality reduces the need for additional separate connection structures, thereby limiting the increase in device complexity while maintaining luminance uniformity.
Solution Approach 2:
The patent merges the voltage transfer function with the signal transmission function by using the same transfer lines (first constant voltage transfer line, second constant voltage transfer line, horizontal transfer line, and vertical transfer line) to deliver both constant voltage signals and data signals to the pixel circuits, avoiding the need for separate dedicated lines for each function.
Data Source
AI summary
A display panel includes a plurality of pixels disposed in a display area, where the display area includes a round-type edge and a flat-type edge extending from the round-type edge, a first constant voltage transfer electrode extending in a first direction and disposed in a peripheral area adjacent to the display area, a first constant voltage transfer line electrically connected to the first constant voltage transfer electrode in the peripheral area, where the first constant voltage transfer line extends from the first constant voltage transfer electrode to the display area via the flat-type edge, and a second constant voltage transfer line electrically connected to the first constant voltage transfer electrode in the peripheral area, where the second constant voltage transfer line extends from the first constant voltage transfer electrode to the display area via the round-type edge.