Curved Display Signal Line Layout for Stable Transmission
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Solution Overview
Problem
Curved display devices face issues with resistance changes in conductive lines due to curvature, affecting transmission efficiency.
Innovation Solution
The display device incorporates substrates with curved portions having different curvatures for signal lines, with gate driving units disposed along one curvature and source driving units along another, compensating for signal transmission quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the display device uses a curved substrate to achieve curved display, then the aesthetic appearance and form factor are improved, but the resistance of conductive lines changes which affects signal transmission efficiency
Solution Approach 1:
The patent applies different curvature radii to different regions of the substrate. Specifically, the first side edge has a first curvature radius while the second side edge has a second curvature radius, creating localized quality variations that optimize both the curved display appearance and signal transmission efficiency in different areas
2Shape
If the substrate is curved to improve device form factor, then the aesthetic appearance is improved, but the risk of cracking in integrated circuits and printed circuit boards increases
Solution Approach 1:
The patent employs asymmetric curvature design where the first side edge and second side edge have different curvature radii. This asymmetric configuration allows optimization of stress distribution patterns to prevent cracking while maintaining the desired curved form factor
Solution Approach 2:
The patent changes the curvature parameter across different regions of the substrate. By varying the curvature radius from the first side edge to the second side edge, the design optimizes mechanical stress distribution to reduce cracking risk while achieving the curved display form
Data Source
AI summary
An electronic includes a substrate, at least one driving unit, a first signal line and a second signal line. The substrate has a first side edge extending in a first extension direction and a second side edge extending in a second extension direction. The first side edge and the second side edge are curved in a normal direction of a projection surface of a top surface of the substrate. A curvature of the first side edge is different from a curvature of the second side edge, and the curvatures of the first side edge and the second side edge are not equal to zero. The first signal line and the second signal line are disposed on the substrate. The first signal line is electrically connected to the at least one driving unit, and a curvature of the first signal line is different from a curvature of the second signal line.