Display Substrate Signal Layout for Low-Reflection Component Areas
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Solution Overview
Problem
Display devices face challenges in reducing external light reflection and external impact resistance, particularly in component areas, which can affect display quality and integrity.
Innovation Solution
The display device incorporates a substrate design with specific signal line configurations, including first and second signal lines oriented in different directions, and a unique layout of semiconductor and conductive layers to minimize external light reflection and enhance impact resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If signal lines are densely arranged in the component area to improve electrical connectivity, then electrical performance is improved, but external light reflection increases
Solution Approach 1:
The patent extracts the second signal line from the component area, allowing it to extend only in the display area. This removal eliminates the source of light reflection in the component area while maintaining necessary electrical connectivity through alternative routing paths, directly resolving the contradiction between connectivity and light reflection.
Solution Approach 2:
The patent changes the routing dimension by extending the second signal line primarily in the display area rather than confining it to the component area. This spatial reconfiguration allows the signal line to achieve its electrical function while avoiding the component area where it would cause light reflection issues.
2Ease of manufacture
If the substrate structure is simplified to reduce manufacturing complexity, then manufacturing ease is improved, but impact resistance deteriorates
Solution Approach 1:
The patent segments the substrate into distinct functional areas: a display area with comprehensive signal line coverage and a component area with selective signal line arrangement. This segmentation allows the structure to maintain manufacturing simplicity while improving impact resistance by creating a more robust signal line configuration that better protects the display area.
Data Source
AI summary
A display device includes a substrate including a display area and a component area, and first and second signal lines disposed on the substrate, in which each of the display area and the component area includes a first semiconductor layer, a first gate conductive layer and a second gate conductive layer on the first semiconductor layer, a second semiconductor layer on the second gate conductive layer, a third gate conductive layer on the second semiconductor layer, an insulating layer in which openings surrounding the first semiconductor layer, the second gate conductive layer, the second semiconductor layer and the third gate conductive layer are defined, and first and second data conductive layers on the insulating layer, in which the first signal line in the first data conductive layer and the second signal line in the second data conductive layer respectively extend in perpendicular directions.