Display Apparatus Multi-Layer Wire Routing
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Solution Overview
Problem
Current display apparatuses face challenges in minimizing the non-display area while maintaining high-speed driving capabilities and efficient signal transmission, particularly due to the need for extensive wiring that reduces pixel formation space.
Innovation Solution
The display apparatus incorporates a substrate with a transmission area surrounded by a display area and a non-display area, featuring specific wire configurations and connecting wires that allow for efficient signal transmission without the need for extensive wiring along the edge of the transmission area, thereby reducing the non-display area and enabling high-speed driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wires are arranged to extend along the edge of the transmission area, then signal transmission is achieved, but the non-display area increases
Solution Approach 1:
The patent applies dimensionality change by routing wires through multiple layers (different z-dimensions) rather than confining them to a single plane. The first wire is arranged on a first layer while the second wire is arranged on a second layer, allowing them to overlap in the planar view without actual interference. This multi-layer wiring approach enables signal transmission while minimizing the non-display area footprint.
Solution Approach 2:
The patent implements nesting by placing the second wire within the overlapping region of the first wire's projection. The second-1 portion of the second wire is positioned to at least partially overlap the first wire in the planar view, effectively nesting the wiring paths in three-dimensional space. This allows efficient use of the non-display area by utilizing vertical stacking of conductors.
2Productivity
If extensive wiring is used to maintain high-speed driving, then signal transmission capability is improved, but pixel formation space is reduced
Solution Approach 1:
The multi-layer wire arrangement enables high-speed driving capability through efficient signal transmission while minimizing the horizontal space required for wiring. By moving wires to different layers, the patent reduces the non-display area without compromising electrical connectivity, thereby preserving more space for pixel formation.
Solution Approach 2:
The patent utilizes thin-film conductor layers to achieve complex wiring patterns with minimal space occupation. The wires are formed as thin-film structures on different layers, allowing them to overlap and route signals efficiently without requiring extensive lateral space, thus maintaining high pixel density.
Data Source
AI summary
A display apparatus includes: a substrate having a transmission area, a display area, and a non-display area, wherein the display area surrounds the transmission area, and the non-display area is between the transmission area and the display area; a first wire on the substrate and including a first-1 wire and a first-2 wire extending in a first direction and being spaced apart from each other by the transmission area; a first connecting wire on a same layer as that of the first wire and connecting the first-1 wire to the first-2 wire; and a second wire extending in the first direction and including a second-1 portion and a second-2 portion, wherein the second-1 portion at least partially overlaps the first connecting wire and is arranged on a different layer from that of the first wire, and the second-2 portion is on the same layer as that of the first wire.