Touch Interaction Control for Hall-Sensed Keyboard Shielding
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Solution Overview
Problem
Foldable screen electronic devices face issues with reduced tactile feedback from virtual keyboards and unnecessary power consumption when physical keyboards are placed on screens, leading to poor user experience and increased power usage.
Innovation Solution
A touch interaction method and device that utilizes sensing devices, such as Hall sensors and magnetic devices, to determine when an accessory device is placed on the screen, allowing for adjustment of touch scanning frequency and display drive in the shielding area, thereby reducing power consumption and enhancing user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the virtual keyboard is used on the foldable screen, then the device provides interaction functionality, but the tactile feedback is reduced and user experience deteriorates
Solution Approach 1:
The system dynamically switches between virtual and physical keyboard modes based on user needs. When a physical keyboard is detected, the system activates haptic feedback simulation on the virtual keyboard area to provide tactile sensation. This dynamic adaptation allows the system to maintain high tactile feedback quality while preserving full interaction functionality across different scenarios.
2Ease of operation
If the physical keyboard is placed on the screen, then the user can interact with the device, but unnecessary power consumption occurs
Solution Approach 1:
The system continuously monitors the screen surface for physical keyboard placement through sensing devices. When a physical keyboard is detected, the system receives feedback and automatically adjusts by reducing or disabling touch scanning and display drive in the shielding area. This feedback mechanism enables the system to maintain user interaction capability while significantly reducing power consumption in the presence of a physical keyboard.
3Use of energy by moving object
If the touch scanning and display drive are turned off in the shielding area, then power consumption is reduced, but the interaction functionality is limited
Solution Approach 1:
The screen is segmented into different functional zones: the shielding area where the physical keyboard is placed and the remaining interactive area. The system applies different control strategies to each segment - turning off touch scanning and display drive in the shielding area to save power, while maintaining full functionality in the remaining area. This segmentation allows the system to reduce power consumption without compromising overall interaction capability.
Solution Approach 2:
The system applies local quality control by treating different screen regions differently based on their usage characteristics. The shielding area under the physical keyboard receives reduced power consumption treatment, while other areas maintain normal operation. This local differentiation enables the system to optimize power consumption in specific regions without affecting overall interaction functionality.
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
The method effectively reduces touch scanning and display power consumption, improving user interaction and extending the device's endurance by adjusting touch scanning frequency and display drive based on the presence of an accessory device on the screen.
Implementation Method 1
The at least one sensing device includes at least one Hall sensor and a magnetic device corresponding to the Hall sensor
Data Source
AI summary
A touch interaction device includes an electronic device including a screen, an accessory device subordinate to the electronic device, and at least one sensing device. The at least one sensing device is disposed at a bottom of the accessory device, or the at least one sensing device is disposed at the bottom of the accessory device and on the electronic device. The electronic device is configured to: determine whether the accessory device is placed on the screen of the electronic device according to sensing information of the at least one sensing device; determine a screen shielding area according to position information of the at least one sensing device in a case where the accessory device is placed on the screen of the electronic device; and adjust touch scanning frequency of the screen shielding area and turn off display drive of the screen shielding area according to the screen shielding area.