Flexible Display Frame Drive to Prevent Wrinkling During Unfolding
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Solution Overview
Problem
Electronic devices with flexible displays face issues of curvature differences between inner and outer portions of folded areas, leading to potential wrinkling and distortion during unfolding.
Innovation Solution
A driving module comprising a rack gear, pinion gear, and multiple rotation gears, along with a motor, is used to linearly and rotationally move frames supporting the flexible display, ensuring uniform expansion and contraction of display areas without wrinkling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a flexible display is folded to enable portability, then the device can be easily carried, but curvature differences between inner and outer portions cause wrinkling and distortion
Solution Approach 1:
The display area is divided into a first area and a second area that can be independently positioned and oriented. The second area can be folded relative to the first area, allowing the display to be segmented into movable portions that can be carried conveniently while maintaining display quality when unfolded for use.
Solution Approach 2:
The electronic device incorporates a driving module with multiple gears (pinion gear, first gear, middle gear, second gear) that enable dynamic movement and rotation of the second frame relative to the first frame. This dynamic mechanism allows the display to transition between folded and unfolded states, adjusting the position and orientation of the second area to prevent wrinkling while maintaining portability.
2Area of stationary object
If the display area is expanded to provide more functions, then more information can be displayed, but the device becomes harder to carry
Solution Approach 1:
The large display area is segmented into a first area and a second area that can be folded relative to each other. When folded, the second area can be positioned to overlap with or adjacent to the first area, reducing the overall footprint for portability. When unfolded, the full display area is available for providing various functions and information.
Solution Approach 2:
The second area can be folded and positioned to overlap with the first area, creating a nested configuration that reduces the device's external dimensions for easier carrying. The driving module enables this nesting action by rotating and moving the second frame to position the second area over the first area when in folded state.
Data Source
AI summary
Provided is an electronic device that may include a flexible display including a first area and a second area, a frame including a first frame supporting the first area and a second frame supporting the second area, and a driving module for linearly moving and rotating the second frame so that the second frame moves relative to the first frame. In addition, various example embodiments are possible.