Display Module Gate Layout for Narrow Corner Bezels
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Solution Overview
Problem
Display panels, especially those with non-rectangular shapes, face challenges in reducing the frame width of the third non-display region, which affects the visual appeal and overall aesthetics.
Innovation Solution
The display module integrates the second pixel rows with the driver chip, eliminating or reducing the need for gate driving circuits in the third non-display region, and employs an arc-shaped design for the third edge to minimize the width of this region, combined with strategic placement of signal lines to optimize the visual effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gate driving circuits are integrated in the third non-display region, then the display panel can provide complete driving functions, but the width of the third non-display region increases
Solution Approach 1:
The gate driving function is segmented into two parts: the first gate driving circuit integrated in the first non-display region, and the second gate driving circuit integrated in the second non-display region. This segmentation allows the third non-display region to be freed from gate driving circuits, reducing its width while maintaining complete gate driving functionality through the combination of both circuits.
Solution Approach 2:
The gate driving signal lines are routed through the display region to connect the first and second gate driving circuits. This dimensional change in signal routing (through the display area rather than the non-display region) enables the reduction of the third non-display region width while maintaining electrical connectivity between driving circuits and pixel rows.
2Shape
If the width of the third non-display region is reduced, then the visual effect and screen-to-body ratio are improved, but the integration of gate driving circuits becomes more difficult
Solution Approach 1:
The gate driving circuits are segmented and placed in separate non-display regions (first and second non-display regions), which are located at opposite sides of the display region. This segmentation strategy distributes the integration complexity across different areas, making the overall integration more manageable while enabling the third non-display region to be minimized for better visual effect.
Solution Approach 2:
Gate driving signal lines are routed through the display region to connect the segmented gate driving circuits. This alternative routing path through the display area rather than through the compressed third non-display region simplifies the manufacturing process by providing adequate space for signal line integration, even when the third non-display region width is reduced.
3Length of stationary object
If gate driving circuits are eliminated from the third non-display region, then the width difference between the third and second non-display regions is reduced, but alternative routing for signal lines is required
Solution Approach 1:
The gate driving signal lines are routed through the display region, changing their path from the conventional route through the non-display region. This dimensional change in routing allows the third non-display region width to be reduced to match the second non-display region width, while the signal lines still reach their destinations by traversing the display area, thereby reducing the visible frame width.
Solution Approach 2:
The display region acts as an intermediary space through which gate driving signal lines are routed to connect the first and second gate driving circuits. This intermediary routing path enables the reduction of the third non-display region width while maintaining necessary electrical connections, effectively mediating between the conflicting requirements of compact size and functional connectivity.
Data Source
AI summary
Provided are a display module and a display device. A non-display region of the display panel includes a first non-display region, a second non-display region and a third non-display region located between them and provided corresponding to a corner of the display region. The first non-display region and the display region are arranged along a first direction, and the second non-display region and the display region are arranged along a second direction. The display region includes first pixel rows and second pixel rows located on a side of the first pixel rows proximate the second non-display region. The first non-display region includes a gate driving circuit, which is connected to the first pixel rows through a first gate driving signal line. The non-display region includes a driver chip, which is connected to the second pixel rows through a second gate driving signal line.