Movable Touch-Sensitive Display With Piezoelectric Actuation
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Solution Overview
Problem
Portable electronic devices with touch-sensitive displays face challenges in user input and output due to limited space, requiring improvements in control placement and flexibility to accommodate various user sizes and preferences.
Innovation Solution
The implementation of piezoelectric actuators and force sensors in portable electronic devices allows for movable and depressible touch-sensitive displays, enabling users to dynamically locate and move controls on the screen through touch input, enhancing usability and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the size of portable electronic devices is decreased to improve portability, then device portability is improved, but the space available for user input and output is reduced
Solution Approach 1:
The control location on the touch-sensitive display is made dynamic rather than fixed. Users can move controls to different positions on the display by dragging them with touch input. This allows the same physical device to adapt its control layout to different user needs and hand sizes, effectively increasing the usable space for input and output without increasing device size.
Solution Approach 2:
The patent changes the positional parameter of controls on the display from fixed to variable. By allowing users to adjust control positions freely across the display area, the system optimizes the utilization of available screen space, enabling effective interaction even on smaller devices with limited display area.
2Device complexity
If controls are fixed in standard locations on the touch-sensitive display, then device simplicity is maintained, but adaptability to different user sizes and preferences is reduced
Solution Approach 1:
The control layout transitions from a static, predetermined arrangement to a dynamic, user-configurable system. Users can drag controls to preferred locations and the system maintains these custom positions, allowing adaptation to different hand sizes, grip styles, and user preferences while maintaining operational simplicity through intuitive touch-based repositioning.
3Ease of operation
If tactile feedback is added to the touch-sensitive display to improve user interaction, then user interaction quality is improved, but device complexity increases
Solution Approach 1:
The patent incorporates a vibration generator that produces tactile feedback by generating mechanical vibrations through the touch-sensitive display. This allows users to feel confirmation of their touches and interactions, improving ease of operation and providing sensory feedback without requiring complex mechanical buttons or switches, thus adding minimal structural 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 provides improved user interaction by allowing controls to be placed at desired locations, accommodating different hand sizes and orientations, and providing tactile feedback, thus enhancing the usability and flexibility of portable electronic devices with touch-sensitive displays.
Implementation Method 1
The implementation of piezoelectric actuators and force sensors in portable electronic devices allows for movable and depressible touch-sensitive displays
Implementation Method 2
The implementation of piezoelectric actuators and force sensors in portable electronic devices allows for movable and depressible touch-sensitive displays
Data Source
AI summary
A method includes detecting a touch on a touch-sensitive display at a location not associated with a control, displaying, in association with the location, a displayed control, and activating the displayed control.