Display Peripheral Layout With Overlapping Fan-Out Power Line
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Solution Overview
Problem
Existing display devices face challenges in reducing the non-display area while maintaining efficient signal transmission and circuit integration, particularly in organic light-emitting displays.
Innovation Solution
The display device incorporates a common power supply line that overlaps a fan-out unit in the peripheral area, along with a first signal line connected to a test circuit and a second signal line connected to a driving circuit, all arranged in the peripheral area, allowing for efficient signal distribution and reduced non-display area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the non-display peripheral area is reduced, then the display device becomes thinner and more compact, but the arrangement of circuits and wirings becomes more complex
Solution Approach 1:
The patent applies multi-layer stacking to arrange circuits and wirings in three-dimensional space rather than only on a two-dimensional plane. The first and second signal lines are positioned on different layers, allowing vertical arrangement that reduces peripheral area while maintaining functional connectivity. This dimensional transition enables compact layout without sacrificing signal transmission capability.
Solution Approach 2:
The common power supply line is designed to overlap with the fan-out unit in the peripheral area, merging the power supply function with the signal distribution function in the same spatial region. This overlapping arrangement allows multiple functions to share the peripheral area, reducing the overall non-display area while maintaining all necessary electrical connections.
2Area of stationary object
If signal lines and power supply lines are arranged to minimize peripheral area, then device thinness is enhanced, but signal transmission effectiveness may be compromised
Solution Approach 1:
By positioning the first signal line and second signal line on different layers, the patent maintains adequate spacing and signal integrity while reducing peripheral area. The vertical separation through layering prevents signal interference and maintains transmission effectiveness in the compact arrangement.
Solution Approach 2:
The patent divides the signal transmission paths into separate layers, with the first signal line and second signal line positioned on different layers. This segmentation allows independent optimization of each signal path and prevents interference between signals, maintaining reliable transmission while minimizing the overall peripheral area occupied.
Data Source
AI summary
A display device including: a substrate including a display area and a peripheral area adjacent to the display area; a plurality of data lines extending in a first direction in the display area; a fan-out unit arranged in the peripheral area and connected to the plurality of data lines; a first signal line arranged in the peripheral area; and a common power supply line arranged in the peripheral area and overlapping the fan-out unit.