Array Substrate Lead Routing for Narrow-Bezel Rounded Displays
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Solution Overview
Problem
Display devices with rounded corners require wider frames to route leads, compromising the narrow frame design and rounded corner aesthetics, which are desired for improved display quality.
Innovation Solution
The array substrate design includes first leads that extend from a second region to a bonding region through a first region, avoiding the need for wider frames by routing leads within the display area, allowing for a narrow frame and rounded corner design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If leads are routed from the second region directly to the bonding region, then the routing path is simple, but a wider frame is required outside the second region, compromising narrow frame design
Solution Approach 1:
The patent applies dimensionality change by routing leads through the first region (display area) rather than extending them outward in the frame region. The leads pass through the first region from the second region to the bonding region, utilizing the vertical/display plane dimension instead of the lateral frame dimension, thereby achieving narrow frame design while maintaining functional connectivity
Solution Approach 2:
The patent embeds the lead routing path within the display region (first region) rather than placing it in the outer frame region. The leads are nested within the active display area, passing through the first region to reach the bonding region, which eliminates the need for additional frame width while maintaining signal transmission functionality
2Shape
If leads extend through the first region from the second region to the bonding region, then narrow frame design is achieved, but signal crosstalk may occur
Solution Approach 1:
The patent segments the lead routing path into distinct regions: the leads extend from the second region through the first region to the bonding region, with each segment serving a specific function. This segmentation allows for optimized routing in each region, reducing signal interference while maintaining narrow frame design
Solution Approach 2:
The first region acts as an intermediary space through which the leads pass. By routing leads through this intermediate display region rather than directly through the frame region, the patent creates a buffered path that reduces signal crosstalk while achieving narrow frame aesthetics
Data Source
AI summary
An array substrate and a display device. The array substrate includes a base substrate, a plurality of first pixel driving circuits, M first data lines, and M first leads; the base substrate includes a display region and a bonding region; the plurality of first pixel driving circuits are on the base substrate; the display region includes a first region and a second region, and the plurality of first pixel driving circuits are in the second region; the plurality of first pixel driving circuits are arranged in an array to constitute a plurality of first pixel driving columns; the M first data lines are configured to provide data signals to the plurality of first pixel driving columns, the M first leads are respectively connected with the M first data lines, pass through the first region from the second region and extend to the bonding region.