Scan Driving Circuit for Free-Form Display Regions
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Solution Overview
Problem
Current display panel designs with rectangular display regions are not adaptable to the trend of free-form display regions, requiring innovative circuit configurations to accommodate non-rectangular or irregular shapes such as circular, elliptic, or polygonal outlines.
Innovation Solution
A display device with a substrate and a scan driving circuit comprising multiple scan driving blocks and conductive lines that can be flexibly disposed according to the shape of the display region, allowing for the creation of non-rectangular display regions by coupling scan driving blocks through conductive lines, which can overlap or span across the display and peripheral regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rectangular display region is used in the display panel, then the circuit configuration is simple and easy to manufacture, but the display device cannot adapt to free-form display region designs
Solution Approach 1:
The scan driving circuit is divided into multiple scan driving blocks that can be independently positioned and connected. Each block contains scan driving transistors and conductive lines that can be flexibly arranged to match the desired display region shape, allowing the circuit to adapt to free-form geometries while maintaining manageable complexity through modular segmentation.
Solution Approach 2:
The conductive lines are designed to extend not only in the traditional planar direction but also to overlap and span across the display region and peripheral region in multiple dimensions. This three-dimensional routing approach allows the circuit to navigate around non-rectangular boundaries while maintaining electrical connectivity, enabling free-form display region support.
2Shape
If scan driving blocks are flexibly disposed to match free-form display region, then the display region shape can be changed, but the circuit layout becomes more complex
Solution Approach 1:
The conductive lines are designed with multi-functionality, serving both as signal transmission paths and as structural elements that define the display region boundaries. These conductive lines can be configured to overlap with the display region or extend into the peripheral region, providing a universal solution that works for various shapes including circular, elliptic, and polygonal configurations without requiring separate layout structures for each shape type.
3Adaptability or versatility
If conductive lines are disposed corresponding to both display region and peripheral region, then the scan driving circuit can support free-form shapes, but the manufacturing process becomes more difficult
Solution Approach 1:
The conductive lines are pre-configured in the circuit layout to naturally follow the boundaries of the display region and extend into the peripheral region. This preliminary design approach ensures that during manufacturing, the conductive lines are formed in a single continuous process rather than requiring separate steps for different regions, simplifying the manufacturing process while still achieving the desired free-form configuration.
Data Source
AI summary
A display device includes a display panel having a display region and a peripheral region. The display panel includes a substrate and a scan driving circuit. The scan driving circuit disposed on the substrate includes a plurality of scan driving blocks and a plurality of first conductive lines. The first conductive lines are respectively coupled to and disposed between adjacent scan driving blocks. The scan driving blocks are disposed corresponding to the peripheral region, and the first conductive lines are disposed corresponding to the display region and the peripheral region.