Shape-Changing Display Adaptive Lens for Selective Magnification
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Solution Overview
Problem
Modern handheld electronic devices, such as wireless communications devices, face challenges with limited display screen size leading to difficult viewing and the inability to selectively magnify onscreen information without losing context, particularly in touchscreen devices that lack tactile feedback and suffer from typing errors due to the absence of physical keys.
Innovation Solution
The implementation of a shape-changing touch-sensitive display screen with individually actuable zones containing electrically responsive gels that expand into convex protrusions, acting as adaptive magnifying lenses to visually enlarge specific areas of the screen, allowing for selective zooming and maintaining contextual information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If basic zoom functions are used to magnify the image onscreen, then the image size is increased, but context information is lost due to the loss of peripheral information
Solution Approach 1:
The patent applies local quality by creating a magnifying lens effect at a specific location on the display rather than magnifying the entire image. The shape-changing zone is actuated at the target location to form a convex protrusion that optically magnifies only the underlying display area, while the rest of the display remains unchanged and visible, thus preserving context information.
Solution Approach 2:
The display surface is segmented into multiple independently controllable shape-changing zones. Each zone can be individually actuated to form a magnifying lens where needed, allowing selective magnification of specific regions while maintaining the overall display context visible through unactuated zones.
2Area of stationary object
If touchscreen technology is used to eliminate physical keys, then device compactness is improved, but typing accuracy deteriorates due to lack of tactile feedback
Solution Approach 1:
The shape-changing zones when actuated form convex spherical or spheroidal protrusions from the flat display surface. This curvature provides tactile feedback to the user's finger, simulating the feel of physical keys or buttons, thereby improving typing accuracy while maintaining the compact touchscreen form factor.
Solution Approach 2:
The display surface transitions from a static flat state to a dynamic state where specific zones can protrude on demand. This dynamic shape-changing capability allows the display to provide tactile feedback only when and where needed, maintaining compactness while improving typing accuracy through on-demand tactile feedback.
3Adaptability or versatility
If shape-changing zones are actuated to form magnifying lenses, then selective magnification capability is improved, but device complexity increases
Solution Approach 1:
The shape-changing zones serve multiple functions: they can be actuated to form magnifying lenses for selective magnification, and they can also form tactile protrusions for improved typing feedback. This multi-functionality reduces the need for separate components, thereby managing device complexity while providing versatile capabilities.
Solution Approach 2:
The patent merges the magnification function and tactile feedback function into a single shape-changing display system. The same shape-changing zones that provide tactile feedback when pressed can also optically magnify content when actuated, combining multiple functions into one integrated system to manage complexity.
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
This solution enables users to visually magnify specific onscreen information, such as maps or text, while preserving overall context and orientation, improving usability and reducing typing errors by providing tactile feedback through shape-changing keys.
Implementation Method 1
Each of the shape-changing zones defines a pocket containing an electrically responsive gel (or other fluid that can be volumetrically modulated on application of an electric field). By applying electrical stimuli (in the form of an appropriate current or voltage), the shape-changing zones can thus be made to expand or swell into convexly shaped protrusions
Data Source
Figure 1
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Figure 3A
AI summary
A method of displaying information on a display of a handheld electronic device includes steps of determining a target area onscreen to be visually magnified and causing a shape-changing zone of the display to change shape in the target area to visually magnify information displayed in the target area. The array of shape-changing zones on the touch-sensitive display can be independently actuated to form a magnifying lens over any onscreen object of interest. For example, this lens can be used to magnify a selected portion of a map, a portion of text or a specific point of interest. The lens can be used to magnify a route displayed on a map, or simply to zoom in on the current location of the device as displayed onscreen.