Touchscreen Pressure Sensing for Tactile Feedback Control
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Solution Overview
Problem
Existing electronic devices require users to visually interact with function controls, making it inconvenient to operate them in situations that demand attention, such as crossing a road.
Innovation Solution
A control method and electronic device that provides tactile feedback by receiving an input for a function control and displaying it in a second manner, outputting currents at specific positions to simulate a tactile sensation, allowing users to interact with function controls through touch inputs or pressure, thereby enhancing usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If function control is displayed visually on the screen, then the user can see and identify the control, but the user cannot operate it without visual attention
Solution Approach 1:
The function control is segmented into multiple touch positions (first position and second position) with different pressure thresholds. This segmentation allows the control to provide both visual display and tactile feedback through differentiated pressure zones, enabling operation without visual attention while maintaining information visibility.
Solution Approach 2:
The patent introduces tactile feedback as a counterbalancing sense to visual display. By providing touch-based pressure detection and haptic feedback, the system compensates for the limitation of visual-only interaction, allowing users to operate controls without looking at the screen.
2Ease of operation
If the function control provides tactile feedback through pressure detection, then the user can operate without visual attention, but the device complexity increases
Solution Approach 1:
The touchscreen display serves multiple functions: visual display, touch detection, and pressure sensing. By making the existing touchscreen multi-functional rather than adding separate components, the patent reduces device complexity while enabling tactile feedback and pressure-based operation.
Solution Approach 2:
The touchscreen itself performs pressure detection and tactile feedback functions without requiring separate sensors or actuators. The display technology inherently provides the sensing capability, making the system self-sufficient and reducing overall device complexity.
Data Source
AI summary
A control method and an electronic device are provided. The method includes: receiving a first input for a function control in a case that the function control is displayed in a first manner; and displaying, in response to the first input, the function control in a second manner, outputting a first current at a first position of the function control, and outputting a second current at a second position of the function control, where an input position of the first input includes at least one of the first position and the second position.