Display Panel Multi-Layer Data Routing Around Light-Transmitting Areas
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Solution Overview
Problem
Existing display devices face challenges in achieving a high screen-to-body ratio due to the need for a wider frame around light-transmitting areas to accommodate signal lines, which is not sufficient to meet market demands.
Innovation Solution
The display panel design includes data lines with subsections and connection lines on different film layers that partially surround the light-transmitting area, reducing the number of signal lines at the frame position and minimizing the frame area, while also reducing coupling capacitance and signal crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If signal lines are arranged around the light-transmitting area to connect components, then the components can be properly connected, but the frame width increases and screen-to-body ratio decreases
Solution Approach 1:
The patent transitions data lines from a single-plane arrangement to a multi-layer structure, utilizing vertical stacking of conductive layers to route signals around the light-transmitting area. This three-dimensional wiring approach allows connection lines to pass through different depths of the display structure rather than expanding horizontally, thereby maintaining narrow frame width while ensuring reliable component connections.
Solution Approach 2:
The patent implements nested wiring by routing connection lines through multiple stacked conductive layers, where each layer contains subsets of the complete signal path. The data lines are embedded within the display structure's internal layers, nesting the wiring infrastructure within the existing display architecture rather than adding external frame space.
2Adaptability or versatility
If more data lines are routed through the display area, then component connectivity is improved, but coupling capacitance and signal crosstalk increase
Solution Approach 1:
By distributing data lines across multiple stacked conductive layers separated by insulating media, the patent increases the vertical distance between adjacent signal lines. This three-dimensional separation reduces electromagnetic coupling and crosstalk between lines while still allowing comprehensive component connectivity through the multi-layer routing architecture.
Solution Approach 2:
The patent divides the wiring system into multiple independent conductive layers, each carrying specific signal subsets. This segmentation isolates signal paths vertically, reducing interference between adjacent lines while maintaining overall system connectivity. Each layer can be optimized independently for signal integrity and routing efficiency.
Data Source
AI summary
Display panel and display device are provided. The display panel includes at least one light-transmitting area and a display area surrounding the at least one light-transmitting area. The display area includes a plurality of data lines including first data lines, a first data line includes a first subsection, a second subsection, and a connection line connecting the first subsection and the second subsection, first subsections and second subsections are respectively on two sides of a light-transmitting area along a first direction, connection lines at least partially surround the light-transmitting area, and the connection lines are in the display area. The connection line includes a first connection line and a second connection line on different film layers.