Foldable Display Panel Data Line Orientation and Pin Placement
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Solution Overview
Problem
Foldable display devices face issues with non-uniform display between folding and non-folding regions, and the display components in the folding region are prone to failure, affecting user experience and reliability.
Innovation Solution
A foldable display panel design with a specific arrangement of gate lines, data lines, data pins, and data leads, where data lines are parallel to the folding axis, and data pins are located only in non-folding regions, avoiding data line fractures and ensuring scan signals are provided from both sides of the gate lines, reducing the risk of pixel failure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data lines are arranged perpendicular to the folding axis (conventional design), then the display panel can be folded, but the data lines are prone to fracture due to repeated bending
Solution Approach 1:
The patent applies local quality by making the data lines parallel to the folding axis specifically in the folding region, while other regions can have different arrangements. This localized optimization ensures that data lines in the bending zone are not subjected to fracture-prone perpendicular stress, thereby improving reliability without compromising foldable capability.
2Device complexity
If data pins are located in the folding region, then the display panel structure is simplified, but the display components are prone to failure due to bending stress
Solution Approach 1:
The patent extracts the data pins from the folding region and relocates them to non-folding regions. This separation removes the vulnerable data pins from the bending zone, preventing failure due to bending stress while maintaining a relatively simple overall panel structure through optimized routing.
3Device complexity
If gate lines extend through the folding region from one side only, then the circuit design is simplified, but the display uniformity between folding and non-folding regions deteriorates
Solution Approach 1:
The patent segments the gate line routing by extending gate lines from both sides of the folding region toward the center. This segmentation allows each gate line to be driven from its nearest side, reducing the length of gate lines crossing the folding region and minimizing display uniformity issues while keeping the circuit design manageable.
Data Source
AI summary
A foldable display panel, including: a first non-folding region, a folding region, and a second non-folding region arranged in the first direction; a plurality of gate lines; a plurality of data lines having first and second data lines; a plurality of first data pins located in the first non-folding region; a plurality of second data pins located in the second non-folding region; a plurality of first data leads; and a plurality of second data leads. The plurality of gate lines extends in the first direction from the first non-folding region, passes through the folding region and extends to the second non-folding region. The first data lines are electrically connected to the plurality of first data pins, and the second data lines are electrically connected to the plurality of second data pins. A folding axis of the foldable display panel is substantially parallel to the plurality of data lines.