Display Panel Auxiliary Electrode Protrusions for Brightness Uniformity
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Solution Overview
Problem
Display panels with organic light emitting elements face challenges in maintaining uniform brightness as the device size increases, leading to non-uniform brightness issues.
Innovation Solution
A display panel design featuring a base substrate with a circuit layer, a first electrode, an auxiliary electrode, and an organic layer with protrusions surrounding openings that connect the auxiliary electrode, ensuring uniform brightness and improved reliability by optimizing the structure and materials used in the panel's construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the area of the display panel increases, then the display device can accommodate larger screens, but non-uniform brightness occurs
Solution Approach 1:
The patent divides the display panel into multiple regions with different electrode configurations. Specifically, the display panel includes a first region with a first electrode and a second region with a second electrode, allowing different areas to have optimized electrical characteristics for their specific size and function, thereby maintaining uniform brightness across the entire large-area display.
Solution Approach 2:
The patent implements local quality by providing different electrode structures in different regions of the display panel. The first electrode in the first region and the second electrode in the second region have different configurations optimized for their respective local requirements, enabling each region to achieve optimal brightness uniformity while accommodating the overall large area of the display.
2Speed
If the display panel uses organic light emitting elements, then wide viewing angles and high response speed are achieved, but non-uniform brightness occurs as device area increases
Solution Approach 1:
The patent segments the display panel into multiple regions with different electrode configurations to address brightness uniformity issues in large-area organic LED displays while preserving the high response speed characteristic of organic light emitting elements.
Solution Approach 2:
The patent applies local quality by optimizing electrode structures in different regions of the organic LED display panel, allowing each region to maintain the high response speed of organic materials while achieving uniform brightness across the entire large-area display.
3Use of energy by moving object
If the display panel uses organic light emitting elements, then low power consumption is achieved, but non-uniform brightness occurs as device area increases
Solution Approach 1:
The patent divides the large-area organic LED display into multiple regions with different electrode configurations, enabling each segment to operate efficiently with optimized power distribution, thereby maintaining low overall power consumption while achieving uniform brightness across the entire display area.
Solution Approach 2:
The patent implements local quality by providing region-specific electrode structures that optimize power consumption for each local area of the organic LED display, ensuring uniform brightness while maintaining the energy efficiency advantage of organic light emitting elements across the entire large-area device.
Data Source
AI summary
A display panel includes: a base substrate having a base surface parallel to a plane defined by a first direction and a second direction; a circuit layer on the base substrate; a first electrode in a first region on the circuit layer; an auxiliary electrode in a second region on the circuit layer and spaced apart from the first electrode; an organic layer on the first electrode and the auxiliary electrode and including a plurality of openings overlapping the auxiliary electrode, and a second electrode on the organic layer, wherein: the second electrode is electrically connected to the auxiliary electrode via each of the plurality of openings; at least a portion of the organic layer includes a plurality of protrusions having a shape surrounding each of the plurality of openings.