Display Link Wiring Structure to Reduce Routing Area
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Solution Overview
Problem
In display apparatuses, the increase in resolution leads to an increase in the distance between the active area and the pad area, resulting in a larger area occupied by link wirings and potential signal distortion.
Innovation Solution
The implementation of a link wiring structure comprising a first, second, and third link, where the second link is disposed closer to the pad area than the first, with the second and third links on different layers and materials, maintaining a certain distance between adjacent wirings and minimizing the area occupied by link wirings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution of the display apparatus is increased, then the image quality is improved, but the area occupied by link wirings increases and the distance between active area and pad area increases
Solution Approach 1:
The link wiring is configured to extend in multiple directions (first direction from pad area toward active area, second direction perpendicular to first direction within active area), utilizing two-dimensional space instead of linear one-dimensional routing. This dimensional approach allows the wiring to reach pixel areas more efficiently across the display panel.
Solution Approach 2:
Different sections of the link wiring have different configurations optimized for their specific functions: the first link extends in a first direction from the pad area, while the second link extends in a second direction within the active area. This localized optimization allows each segment to efficiently serve its specific routing requirements.
2Reliability
If the distance between adjacent link wirings is maintained to prevent signal distortion, then signal quality is improved, but the area occupied by link wirings increases
Solution Approach 1:
By routing link wirings in multiple directions (combining first direction routing from pad area with second direction routing within active area), the design creates a more compact two-dimensional wiring pattern that maintains adequate spacing between adjacent wirings while reducing the overall area required for wiring infrastructure.
Data Source
AI summary
In the display apparatus disclosed, each of pixel areas is electrically connected to a pad area by a link wiring. The pixel area is disposed in an active area. The pad area is disposed outside the active area. The link wiring includes a first, second, and third links. The first link can be disposed close to the pad area. The second link can be electrically connected to the first link. The third link can be electrically connected to the second link. The second link can include a first end electrically connected to the first link and a second end electrically connected to the third link. The second end of the second link can be disposed closer to pad area than the first end of the second link. Thus, in the display apparatus, a distance between the pad area and the active area can be reduced or minimized.