Foldable Display Line Layout for Dead Space and Reliability
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Solution Overview
Problem
Display devices have significant dead space and reliability issues due to the layout of data and power connection lines, which affect the overall efficiency and performance.
Innovation Solution
The display device incorporates a substrate design with a data distributor and data driver positioned in a second peripheral area, separated by a bending area, with data and power connection lines optimized to reduce dead space and enhance reliability by using overlapping and layered connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data connection lines and power connection lines are arranged in separate peripheral areas, then reliability is improved through electrical isolation, but dead space increases due to layout separation
Solution Approach 1:
The patent utilizes vertical layering (different layers) to arrange data connection lines and power connection lines three-dimensionally, allowing both line types to coexist in the same peripheral area without electrical interference, thus reducing dead space while maintaining reliability
Solution Approach 2:
The patent nests power connection lines within the space occupied by data connection lines by using overlapping layouts across different layers, where power lines are positioned between adjacent data line groups, effectively utilizing the same peripheral area for both functions
2Length of stationary object
If data distributor is positioned close to display area, then connection length is reduced, but manufacturing complexity increases due to routing constraints in bending area
Solution Approach 1:
The patent segments the peripheral area into distinct functional zones (first peripheral area for data lines, second peripheral area for power lines and data distributor) separated by a bending area, allowing independent optimization of each zone while managing routing complexity systematically
Solution Approach 2:
The bending area serves as an intermediary zone between the display area and the second peripheral area, providing a transition region that facilitates signal routing from the data distributor to the display area while managing the complexity of connections
Data Source
AI summary
A display device according to an embodiment may include a substrate including a display area, a first peripheral area, a second peripheral area, and a bending area between the first peripheral area and the second peripheral area, a data distributor in the second peripheral area and spaced apart from the display area with the bending area interposed therebetween, a data driver in the second peripheral area, first data connection line groups including first data connection lines receiving a data signal in response to a first distribution selection signal, second data connection line groups including second data connection lines receiving the data signal in response to a second distribution selection signal, and power connection lines receiving a power supply voltage. Each of the power connection lines may be between the first data connection line groups and the second data connection line groups adjacent to each other.