Flexible Display Scan Line Direction Alignment
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Solution Overview
Problem
Existing electronic devices with flexible display panels face challenges in maintaining display quality, particularly when the device is folded or unfolded, leading to defects from overlapping new and previous data.
Innovation Solution
The electronic device incorporates a display panel with a scan driving circuit and a data driving circuit, where the scan lines extend in a first direction, and the data lines are connected via fan-out lines that overlap the scan driving circuit. This configuration aligns the scan line direction with the frequent scrolling direction, minimizing defects and enhancing display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display panel is made flexible and foldable, then user convenience and portability are improved, but display quality deteriorates due to data overlap defects when folded or unfolded
Solution Approach 1:
The display panel is divided into a first display area and a second display area separated by a bending area. The bending area is further segmented into a first bending area and a second bending area, allowing independent control of folding behavior. This segmentation prevents data overlap by ensuring that when the display is folded, the first and second display areas move independently without overlapping, thus maintaining display quality while enabling flexibility.
2Reliability
If the scan lines extend in the first direction to align with scrolling direction, then display quality is improved by minimizing data overlap defects, but device complexity increases due to specific arrangement requirements
Solution Approach 1:
The scan lines are arranged to extend specifically in the first direction (vertical direction) rather than horizontally, creating an asymmetric configuration that matches the typical scrolling behavior of users. This asymmetric arrangement minimizes data overlap defects during vertical scrolling while the data lines extend in the second direction (horizontal direction), optimizing the circuit layout for the intended usage pattern.
3Area of stationary object
If the display area is extended to increase display area ratio, then visual performance is improved, but the bezel area reduction may cause manufacturing precision challenges
Solution Approach 1:
The display panel utilizes the vertical dimension more effectively by extending scan lines in the first direction and creating a bending area that spans vertically. This dimensional approach allows the display area to be maximized while maintaining manageable bezel areas, as the folding capability is achieved through vertical segmentation rather than horizontal expansion, simplifying manufacturing constraints.
Data Source
AI summary
An electronic device including a display panel, a scan driving circuit, and a data driving circuit. The display panel includes a plurality of scan lines, a plurality of data lines, and a plurality of pixels. The scan driving circuit is configured to apply a scan signal to the scan lines. The data driving circuit is configured to apply a data signal to the data lines. The scan lines extend in a first direction. The scan driving circuit and the data driving circuit are arranged in the first direction.