Display Panel Line Layout to Reduce Data-Line Coupling
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Solution Overview
Problem
Existing display devices face challenges in improving display quality due to coupling phenomena between data lines and insufficient space for data lines, which affect the overall performance and efficiency of the display.
Innovation Solution
The display device incorporates power connection lines and data lines on different layers with alternating arrangements, reducing coupling between adjacent data lines and ensuring sufficient space, while demultiplexers in the pad area minimize dead space and enhance signal distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If data lines are arranged closely to improve space utilization, then area efficiency is improved, but coupling phenomenon between adjacent data lines increases
Solution Approach 1:
The patent applies multi-layer routing to arrange data lines on different layers (first data lines on a first layer, second data lines on a second layer), thereby utilizing the vertical dimension to reduce horizontal crowding and coupling between adjacent data lines while maintaining high space utilization.
Solution Approach 2:
The patent segments data lines into different groups (first data lines and second data lines) that carry different data signals, routing them on different layers to minimize interference while maximizing space efficiency.
2Device complexity
If power connection lines and data lines are placed on the same layer to simplify structure, then device complexity is reduced, but coupling between power lines and data lines increases
Solution Approach 1:
The patent places power connection lines on a third layer that is different from the layers carrying data lines, utilizing the vertical dimension to physically separate power and data signals, thereby reducing electromagnetic coupling while maintaining relatively simple device structure.
3Area of stationary object
If demultiplexers are added to minimize dead space, then area efficiency is improved, but device complexity increases
Solution Approach 1:
The patent integrates demultiplexers within the existing circuit architecture to distribute data signals efficiently, merging the demultiplexing function into the overall data transmission path to minimize dead space while managing complexity through functional integration.
Data Source
AI summary
A display device includes: a substrate including a display area and a peripheral area adjacent to the display area; a power line in the peripheral area on the substrate; a plurality of power connection lines in the peripheral area on the substrate, extending in one direction, and connected to the power line; and a plurality of data lines in the peripheral area on the substrate, extending in the one direction, on a different layer from the power connection lines, and spaced apart from the power connection lines in a plan view.