Touch Control Substrate Multi-Layer Frame Wiring
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Solution Overview
Problem
Current touch display screens face challenges in achieving a narrow frame design due to the wide width of the frame region occupied by electrode lines, which is not conducive to lightweight and thin display products, and increases production costs.
Innovation Solution
The electrode lines in the frame wiring region are distributed across multiple layers, with orthogonal projections overlapping on a projection plane, reducing the arrangement width and area of the frame, while maintaining signal integrity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrode lines are arranged in the frame region, then signal transmission is enabled, but the frame width increases
Solution Approach 1:
The patent applies the dimensionality change principle by transitioning electrode line arrangements from a two-dimensional planar layout to a three-dimensional stacked configuration. Multiple electrode lines are arranged in different layers (first layer, second layer, third layer) with overlapping projections, effectively utilizing the vertical dimension to reduce the horizontal frame width while maintaining signal transmission functionality.
2Device complexity
If multiple electrode lines are arranged in the same layer, then signal transmission is simplified, but the frame area occupied increases
Solution Approach 1:
The patent resolves this contradiction by moving electrode lines from a single-layer planar arrangement to multi-layer stacked configurations. The first, second, and third electrode lines are positioned in different layers with overlapping projections, reducing the horizontal frame area while maintaining manageable structural complexity through systematic layering.
Solution Approach 2:
The patent implements nesting by placing electrode lines in nested hierarchical layers. The first electrode line occupies the first layer, the second electrode line occupies the second layer, and the third electrode line occupies the third layer, with each layer containing projections that overlap with others, creating a compact nested structure that minimizes overall frame area.
3Length of stationary object
If electrode lines are distributed in different layers with overlapping projections, then frame width is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent achieves frame width reduction through multi-layer stacking with overlapping projections, where the first, second, and third electrode lines are positioned in vertically separated layers. This dimensional transition reduces horizontal occupancy while the overlapping projection design ensures that manufacturing processes can follow systematic patterns, balancing complexity with manufacturability.
Data Source
AI summary
A touch control substrate, a touch control panel, a display substrate, a display panel and a display device are provided in the application. The touch control substrate includes a touch region and a frame wiring region. A plurality of electrode lines in the frame wiring region are distributed in different layers, and orthogonal projections, on a projection plane, of the plurality of electrode lines distributed in the different layers are overlapped, the projection plane being a plane parallel to the touch control substrate.