Display Connection Wiring Layout for Low-Visibility Signal Routing
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Solution Overview
Problem
As display devices become larger, the reduced non-display area limits the space for driving circuits and wirings, leading to inefficiencies in signal transmission and potential visibility issues due to the arrangement of connection wirings within the display area.
Innovation Solution
The display device incorporates connection wirings that extend in multiple directions within the display area, including first and second areas with perpendicular orientations, and utilize branches and slices to minimize dead space and uniform reflection characteristics, thereby reducing the visibility of wiring patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If connection wirings are disposed along the non-display area, then the wiring layout is simple, but the non-display area becomes too small to accommodate the wirings in larger display devices
Solution Approach 1:
The connection wirings are configured to extend in multiple directions (first direction in first area, second direction perpendicular to the first direction in second area) within the display area, transforming the traditional single-dimension wiring layout into a multi-dimensional configuration that accommodates the reduced non-display area
Solution Approach 2:
The display area is divided into a first area and a second area, with connection wirings extending in different directions in each area. This segmentation allows the wirings to be distributed more efficiently within the available space, reducing the burden on the non-display area
2Area of stationary object
If connection wirings are extended within the display area, then the dead space is reduced, but the wiring patterns become more visible
Solution Approach 1:
Different regions of the display area are assigned different wiring extension directions (first area with wirings extending in the first direction, second area with wirings extending in the second direction). This local differentiation optimizes space utilization in each region while managing the overall visibility of wiring patterns through strategic orientation variation
3Device complexity
If connection wirings are arranged in a single direction, then the wiring layout is simple, but the reflection characteristics become non-uniform across the display area
Solution Approach 1:
The wiring layout employs asymmetric directional arrangement where connection wirings extend in the first direction in the first area and in the second direction (perpendicular to the first) in the second area. This asymmetric multi-directional configuration creates more uniform reflection characteristics across the display area compared to a single-direction symmetric layout
Data Source
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AI summary
A display device includes a substrate having a display area, a peripheral area at least partially surrounding the display area, and a pad area within the peripheral area. A plurality of data lines is disposed within the display area. A plurality of connection wirings is disposed within the display area, connected to the plurality of data lines, and configured to transmit a data signal from the pad area to the plurality of data lines. Each of the plurality of connection wirings includes a plurality of branches that protrude from the connection wirings in a direction perpendicular to a direction in which the connection wirings are primarily extended.