Mobile Terminal Force Touch Control for Off-Screen Interaction
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Solution Overview
Problem
Mobile terminals lack the ability to perform functions efficiently when the display unit is turned off, and users face difficulties in searching for specific subjects within images without manual scrolling through all pictures.
Innovation Solution
A mobile terminal that utilizes a touch screen to differentiate between functions based on pressure strength of touch inputs, allowing for the display of time or notification information when pressure is below a certain threshold and enabling image searching when pressure is equal to or greater than the threshold, even with the display unit turned off.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the display unit is turned off to reduce power consumption, then energy saving is improved, but the ability to perform functions and provide user interaction is worsened
Solution Approach 1:
The system allows the display unit to remain off while still providing functional responses through vibration patterns. The mobile terminal serves itself by using haptic feedback to communicate information (time, notifications, image search status) without requiring the display to be activated, thus maintaining user interaction capability while preserving energy savings.
Solution Approach 2:
The patent replaces the visual display mechanism with a mechanical vibration mechanism for user interaction. Instead of relying on the display unit to provide feedback, the system uses the vibration motor to convey information through distinct vibration patterns, substituting the optical information delivery system with a mechanical tactile system.
2Adaptability or versatility
If the display unit is turned on to enable image searching, then image search function is improved, but power consumption increases
Solution Approach 1:
The patent extracts the image search activation function from the display unit and relocates it to the touch sensor system. The force touch input on the touch screen can trigger image search without requiring the display to be on, separating the input detection capability from the visual output requirement and enabling energy-efficient operation.
Solution Approach 2:
The vibration motor serves as an intermediary between the user's force touch input and the image search function. When the user applies force touch to initiate image search, the system provides vibration feedback to confirm activation without needing to turn on the display, mediating the interaction in an energy-efficient manner.
3Measurement precision
If manual scrolling through all pictures is used to search for a subject, then comprehensive search is improved, but time consumption increases
Solution Approach 1:
The system performs preliminary action by automatically capturing the subject's location and applying a magnifying effect to the touched region before the user even completes the search action. When the user applies force touch to a picture, the system pre-processes the image by identifying and enlarging the touched area, so that when the display turns on, the subject is already highlighted and ready for viewing, eliminating the need to manually scroll through entire pictures.
4Ease of operation
If the touch screen provides detailed feedback when the display is off, then user interaction is improved, but energy consumption increases
Solution Approach 1:
The patent segments the feedback mechanism into distinct vibration patterns that correspond to different states and functions. Different vibration patterns indicate different information (time display, notification alerts, image search activation, picture switching), allowing the system to provide comprehensive user interaction feedback through a single low-power haptic channel without requiring the energy-intensive display to be on.
Data Source
AI summary
The present invention relates to a mobile terminal and a method for controlling same, the mobile terminal comprising: a touch screen for displaying information on a screen; and a control unit which controls the touch screen so that, if an input of a touch gesture touching with a pressure below a predetermined level and dragging in a first direction is received on the screen, a first function screen is displayed and, if an input of a touch gesture touching with a pressure at or above the predetermined level and dragging in the first direction is received on the screen, a second function screen is displayed. Accordingly, a display unit in the “off” state can display time information or notification information according to a touch command which has been input.