Arc-Shaped Display Driver Layout for Narrow-Bezel Corners
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Solution Overview
Problem
Existing display devices face challenges in narrowing the frame by efficiently arranging peripheral circuits, which occupy a significant portion of the display area.
Innovation Solution
The display device is designed with scanning line and signal line drivers that are curved in an arc shape to fit the corners of the display area, along with optimized layouts of shift register units, buffer units, and selector units, allowing for a more compact peripheral area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If peripheral circuits are arranged in a conventional rectangular layout, then the device structure is simple and easy to manufacture, but the frame width is large and the display area is reduced
Solution Approach 1:
The patent applies curvature by designing the peripheral circuit layout to follow an arc-shaped path around the display area, particularly at the corners. The scanning line driver and signal line driver are arranged along curved trajectories, allowing the peripheral circuits to occupy less linear space while maintaining all necessary connections and functions. This curved arrangement reduces the overall frame width compared to conventional rectangular layouts.
Solution Approach 2:
The patent transitions from a traditional two-dimensional rectangular grid layout to a curved spatial arrangement that utilizes angular and radial dimensions. By wrapping the peripheral circuits around the display area in an arc-shaped configuration, the design effectively uses the circumferential dimension to reduce the linear footprint, thereby narrowing the frame while preserving circuit functionality.
2Length of stationary object
If peripheral circuits are compacted to narrow the frame, then the frame width is reduced, but the circuit functionality and reliability may be compromised
Solution Approach 1:
The patent divides the peripheral circuit into distinct functional modules: scanning line driver, signal line driver, and their associated buffer and shift register units. Each module is independently arranged along the curved path, allowing for optimized spacing and connection routing. This segmentation enables compact arrangement while maintaining clear signal paths and reducing interference, thus preserving reliability in the compacted frame structure.
Solution Approach 2:
The patent applies different layout strategies to different parts of the peripheral circuit. High-density integration is used in buffer and shift register units where space is critical, while maintaining adequate spacing in driver regions where signal integrity is paramount. This localized optimization ensures that compacting the overall frame does not compromise the functionality of critical circuit regions.
Data Source
AI summary
In one embodiment, a display device includes a display area, a peripheral area, scanning lines, signal lines, a first driver in the peripheral area, and a second driver in the peripheral area. The display area has an arc-shaped corner. The first driver includes first and second buffers configured to apply voltage to the scanning lines, a first shift register unit configured to control the first buffer unit, and a second shift register unit configured to control the second buffer unit. At the corner, extension directions of the first buffer unit and the first shift register unit are equal to each other. Extension directions of the second buffer unit and the second shift register unit are different from each other.