Display Device Signal Line Directional Routing Heat Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display devices face challenges in reducing heat generation and short defects between electrode configurations, leading to reliability issues and inefficient power distribution.
Innovation Solution
The display device incorporates a unique electrode configuration with first and second electrodes on a substrate, where signal lines extend in different directions, and power lines are spaced apart to minimize heat generation and prevent short defects, with a separate layering and connection structure to enhance reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If signal lines extend in parallel directions to simplify routing, then manufacturing ease is improved, but heat generation increases and short defects become more likely
Solution Approach 1:
The patent transitions from two-dimensional parallel routing to three-dimensional spatial separation by extending signal lines in different directions (first direction and second direction), thereby reducing planar proximity while maintaining routing efficiency
Solution Approach 2:
The signal line routing is segmented into multiple directional segments rather than continuous parallel lines, dividing the current path to reduce concentrated heat generation and potential short circuit areas
2Area of stationary object
If power lines are placed close together to save space, then area utilization is improved, but heat generation increases
Solution Approach 1:
The patent uses directional separation in the plane to achieve spatial distribution of power lines, extending them in different directions rather than placing them closely in parallel, thereby reducing thermal interaction while maintaining compact overall layout
3Productivity
If electrode configurations are placed close together to increase pixel density, then productivity is improved, but heat generation in adjacent areas increases
Solution Approach 1:
The patent extends signal lines in different directions from electrode configurations, using directional spatial separation to distribute heat generation away from adjacent pixel areas while maintaining high pixel density through efficient routing
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A display device includes a first electrode and a second electrode on a substrate, a pixel unit including a light emitting element on the first electrode and the second electrode, a first signal line electrically connected to the first electrode, and a second signal line electrically connected to the second electrode, wherein first power is configured to be provided to the first electrode from the first signal line, wherein second power is configured to be provided to the second electrode from the second signal line, wherein at least a portion of the first signal line and at least a portion of the second signal line extend in a first direction, and wherein at least another portion of the first signal line extends in a second direction that is not parallel to the first direction.