Display Device Connection Wires Equal Length Routing
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Solution Overview
Problem
Existing display devices face signal delays due to varying lengths of connection wires in the fan out unit, leading to inconsistent signal transmission and potential short-circuiting risks.
Innovation Solution
The display device employs first and second connection wires with alternating bridges forming predetermined angles, ensuring equal lengths and minimizing gaps between layers to prevent signal delays and short-circuiting, with the wires being bent multiple times to increase resistance and integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If connection wires in the fan out unit are formed with different lengths, then the layout flexibility is improved, but signal transmission consistency deteriorates due to different resistances
Solution Approach 1:
The patent changes the physical parameter of wire length to be equal across all connection wires in the fan out unit. By constraining the length parameter to be uniform, the resistance values become consistent, thereby ensuring uniform signal transmission characteristics while maintaining the required layout flexibility through optimized routing paths.
Solution Approach 2:
The patent creates equipotential conditions for signal transmission by equalizing the resistance values of all connection wires. This is achieved by designing the wires to have equal lengths and identical material properties, ensuring that all signals experience the same electrical conditions during transmission from the gate IC to the gate lines.
2Area of stationary object
If connection wires are arranged closely to save space, then area utilization is improved, but short-circuiting risk increases
Solution Approach 1:
The patent transitions from planar arrangement to three-dimensional stacking by forming first connection wires and second connection wires on different layers. This vertical separation in the z-dimension allows the wires to be positioned closely in the plane while maintaining sufficient physical separation through layer isolation, thus achieving high area utilization without increasing short-circuiting risk.
Solution Approach 2:
The patent segments the connection wires into different layers, with first connection wires formed on one layer and second connection wires formed on another layer. This segmentation physically separates potentially interfering conductors, reducing the risk of short-circuiting while allowing dense packing within each layer for efficient space utilization.
Data Source
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AI summary
Disclosed is a display device including: a substrate including a display area for displaying an image and a peripheral area neighboring the display area; a plurality of signal lines formed in the display area; a pad formed in the peripheral area; and a plurality of connection wires for connecting the signal lines and the pad, wherein a first connection wire and a second connection wire neighboring the first connection wire from among the plurality of connection wires are disposed on different layers, and the first connection wire and the second connection wire, which are formed to extend from the pad and are bent at least twice to have at least one being bent toward backward direction, are disposed in the peripheral area.