Deformable Display Device with Shape Control
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Solution Overview
Problem
Conventional flexible display devices are limited in their deformation capabilities, which restricts their ability to provide optimal viewing experiences, especially in outdoor and large-screen applications, due to their inability to accommodate multiple viewing angles.
Innovation Solution
A deformable display device with a flexible screen and a deformation control structure that allows the screen to switch between different shapes, such as from a three-dimensional annular to a three-dimensional triangular shape, by controlling the distance between a reference point and a first point on the screen, ensuring the screen surface intersects the line connecting these points, thereby enhancing viewing angles to 360°.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a simple curved display with local deformation is used, then the device structure remains simple and flexible, but the viewing angle capability is insufficient especially for outdoor and large-screen applications
Solution Approach 1:
The display screen is divided into multiple independently controllable deformation regions, each capable of being deformed to different degrees and directions. This segmentation allows the screen to form complex three-dimensional shapes with multiple viewing angles while maintaining controllable deformation through individual control of each segment
Solution Approach 2:
The patent implements dynamic deformation control where the screen can switch between different three-dimensional shapes (first mode and second mode) based on viewing angle requirements. The deformation control structure enables real-time adjustment of screen geometry, transforming from static to dynamic adaptability for different application scenarios
2Adaptability or versatility
If the screen deforms to a three-dimensional shape, then the viewing angle is enhanced to 360 degrees, but the control precision of deformation is challenging to maintain
Solution Approach 1:
The patent incorporates feedback mechanisms where sensors detect the actual deformation state of the screen and feed this information back to the control system. The controller adjusts the deformation control signals based on this feedback to achieve precise control of the screen's three-dimensional shape, ensuring accurate positioning in different modes
Solution Approach 2:
The patent controls deformation by changing physical parameters such as the distance between reference points on the screen in different modes. By precisely controlling parameter changes (e.g., first distance vs. second distance between reference points), the system achieves accurate deformation to desired three-dimensional configurations
3Adaptability or versatility
If the reference point position changes during mode switching, then the deformation control becomes simpler, but the viewing angle optimization is compromised
Solution Approach 1:
The patent extracts the reference point as a fixed reference element from the deformation control system. By keeping the reference point position unchanged during mode switching, it serves as a stable basis for measuring and controlling deformation, simplifying the control operation while maintaining viewing angle optimization through controlled changes in other screen points relative to this fixed reference
Data Source
AI summary
A deformable display device and a deformation control method therefor are provided. The deformable display device includes a flexible display screen and a deformation control structure configured to drive the flexible display screen to deform. The deformable display device has a first mode and a second mode. A first distance between a first point of the flexible display screen and a reference point in the first mode is not equal to a second distance between the first point and the reference point in the second mode. The reference point is a point on the deformation control structure. A position of the reference point remains unchanged when the deformable display device is switched from the first mode to the second mode. A display surface, on which the first point is located, of the flexible display screen intersects a line connecting the first point with the reference point.