Stretchable Display Shape Control via Edge Acceleration Sensors
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Solution Overview
Problem
Existing stretchable displays lack effective methods to dynamically adjust their shape and control display characteristics such as size, luminance, and resolution in response to stretching, limiting user interaction and adaptability.
Innovation Solution
A stretchable display system utilizing acceleration sensors at its edges to obtain stretch information, predict shape changes, and control display units like size, luminance, and resolution based on this information, using a look-up table to map stretch information to shape changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If stretchable displays are made capable of being stretched in at least one direction, then adaptability and versatility are improved, but device complexity increases due to the need for special stretchable substrates and sensors
Solution Approach 1:
The patent employs a stretchable substrate as the base layer that can be elastically deformed, and places acceleration sensors on this flexible surface to detect shape changes. This approach enables the display to be stretched while maintaining functional integrity, resolving the contradiction between adaptability and structural complexity by using inherently flexible components.
Solution Approach 2:
The system dynamically adjusts display characteristics (size, luminance, resolution) in real-time based on the detected stretch state. The acceleration sensors continuously monitor the substrate's deformation, and the controller modifies display parameters accordingly, enabling the display to adapt dynamically to changing shapes without requiring a completely redesign of the structure.
2Measurement precision
If acceleration sensors are provided on edges of the stretchable substrate to detect stretch information, then measurement precision is improved, but device complexity increases due to additional sensor components
Solution Approach 1:
The patent divides the stretch detection function into multiple acceleration sensors positioned at different locations on the stretchable substrate. Each sensor independently measures local acceleration and position changes, and the controller integrates these segmented measurements to calculate overall stretch information, improving measurement precision while distributing the complexity across multiple simple components.
Solution Approach 2:
The acceleration sensors serve as intermediary devices that indirectly measure stretch by detecting changes in position and acceleration of substrate points. Rather than directly measuring strain or deformation, the sensors use acceleration data as an intermediary to infer stretch state, enabling precise measurement without requiring complex direct strain sensors.
3Adaptability or versatility
If display characteristics are dynamically adjusted based on shape changes, then user interaction and adaptability are improved, but device complexity increases due to real-time control mechanisms
Solution Approach 1:
The system implements a feedback loop where acceleration sensors continuously monitor the stretchable substrate's shape changes, and the controller uses this feedback information to dynamically adjust display characteristics. This closed-loop control enables the display to automatically adapt to its current shape, improving user interaction while keeping the control mechanism relatively simple through direct sensor-to-controller communication.
Solution Approach 2:
The patent pre-establishes the relationship between stretch information and display control parameters through a look-up table that maps acceleration sensor readings to appropriate display settings. This preliminary preparation allows the controller to quickly adjust display characteristics without complex real-time calculations, reducing control system complexity while maintaining dynamic adaptability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables dynamic adjustment of display characteristics in response to stretching, enhancing user interaction and adaptability by providing a suitable user interface and user experience corresponding to the display's shape changes.
Implementation Method 1
obtaining stretch information relating to the stretchable substrate using at least two pairs of acceleration sensors provided on edges of the stretchable substrate
Data Source
AI summary
A method of controlling a stretchable display including a stretchable substrate, stretchable in at least one direction, and a display unit that is on the stretchable substrate and displays an image, the method including obtaining stretch information of the stretchable substrate using at least two acceleration sensors provided on edges of the stretchable substrate, predicting a shape change of the display unit on the basis of the stretch information, and controlling the display unit on the basis of the shape change.