Flexible Display Drive Controller Aspect Ratio Optimization
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Solution Overview
Problem
The limited bending range of flexible display panels due to the non-flexible drive controller restricts the usability and portability of flexible displays.
Innovation Solution
A flexible display panel design where the drive controller is optimized by adjusting its aspect ratio and placement on the bend area of the flexible substrate, allowing it to be bent along with the panel, thereby reducing its length parallel to the bend line and increasing the viewing angle, and using a support plate and encapsulation material for signal transmission and structural support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the drive controller is made as a long strip shape with non-bending material, then the drive controller can provide sufficient driving capability, but the bending range of the flexible display panel is greatly limited
Solution Approach 1:
The drive controller changes its shape parameter from a long strip (high aspect ratio) to a short wide shape (low aspect ratio less than 10). This parameter change allows the controller to maintain sufficient driving capability while accommodating the bending requirements of the flexible display panel, thereby resolving the contradiction between driving capability and bending range.
2Adaptability or versatility
If the drive controller is placed on the bend area with optimized aspect ratio, then the bending range is improved, but the length of the drive controller parallel to the bend line must be controlled
Solution Approach 1:
The drive controller adopts an asymmetric shape configuration where the length parallel to the bend line is specifically controlled to be less than 2/3 of the bend line length, while the width is sufficient to provide driving capability. This asymmetric design allows the controller to fit within the bend area without compromising functionality, resolving the contradiction between bending adaptability and length constraints.
3Volume of moving object
If the flexible substrate is bent to reduce volume, then the portability is improved, but the drive controller structure must accommodate this bending
Solution Approach 1:
The drive controller is designed with a dynamic shape that can accommodate the bending of the flexible substrate. By controlling the aspect ratio to be less than 10 and positioning it in the bend area, the controller structure dynamically adapts to the bent configuration, enabling volume reduction for portability without excessive structural complexity.
Data Source
AI summary
The present disclosure discloses a flexible display panel and a flexible display. The flexible display panel includes a flexible substrate with at least one bendable side, the flexible substrate comprises a display area and a drive controller, the flexible display panel of the present disclosure adjusts the aspect ratio by changing the structure of the drive controller, thereby shortening the length of the drive controller along the direction parallel to the bend line in the bend area, effectively avoiding defects of the structure of the drive controller on the flexible display panel, also increasing the viewing angle. In addition, in order to save the space, the flexible substrate connected to the drive controller is bent to the other side of the flexible substrate to make the drive controller drive the light emission of the display panel, which greatly reduces the volume of the flexible panel.