Touch Pattern Unlocking on Deactivated Mobile Display
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Solution Overview
Problem
Current mobile terminals lack an efficient method to unlock or activate the display unit without physically turning it on, especially in a deactivated state, which complicates user interaction and increases the need for a new user interface that can handle touch patterns for unlocking.
Innovation Solution
A mobile terminal equipped with a sensing unit to detect taps on the display unit in a deactivated state, using a controller to recognize and respond to predefined touch patterns, allowing the conversion of a locked state to an unlocked state without activating the display unit, and displaying preset screen information based on the received pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the display unit is kept deactivated to save energy, then power consumption is reduced, but the user cannot provide touch input for unlocking
Solution Approach 1:
The patent introduces a transparent touch sensor layer as an intermediary between the user's finger and the deactivated display. This layer can detect touch patterns (such as knocking or tapping) without requiring the display to be activated, thereby enabling user input while the display remains off to save power. The touch sensor acts as a mediator that bridges the gap between user interaction needs and power saving requirements.
2Ease of operation
If the display unit is activated to receive user input, then touch patterns can be detected, but power consumption increases
Solution Approach 1:
The patent segments the input reception function into two parts: the transparent touch sensor layer handles touch pattern detection, while the display unit handles visual output. This segmentation allows the display to remain deactivated (saving power) while the touch sensor layer remains active to detect unlocking patterns. The functions are separated so that power-intensive display activation is avoided unless necessary.
3Device complexity
If a traditional unlock method requiring display activation is used, then user interface is simple, but user convenience is reduced due to additional steps
Solution Approach 1:
The patent enables preliminary touch input action to be performed on the deactivated display's touch sensor layer before the display is activated. Users can knock or tap on the screen while it's off to initiate the unlocking process, and only if the pattern is recognized does the display activate to confirm or reject the unlock. This preliminary action eliminates the need to wake the device first, streamlining the unlocking process.
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
Enables users to unlock the mobile terminal using touch patterns on a deactivated display, providing a more intuitive and efficient user interface by allowing control commands to be received without physically activating the screen, enhancing user convenience and simplifying the unlocking process.
Implementation Method 1
a sensing unit configured to sense a plurality of taps on the display unit
Implementation Method 2
WO 2010/043277 A1 relates to a method of unlocking a mobile electronic device... the mobile electronic device comprises a pressure sensor coupled to the touch screen for detecting an application of pressure to the touch screen
Data Source
Figure 1
Figure 2A~2B
Figure 3
AI summary
A mobile terminal including a wireless communication input configured to perform wireless communication; a touch screen display unit configured to switch between an inactivated state in which illumination is not applied to the display unit and an activated state in which illumination is applied to the display unit; and a controller configured to: sense a plurality of touch inputs on the display unit when the display unit is in the inactivated state and no illumination is applied to the display unit, and release a locked state of the mobile terminal and switch the display unit to the activated state in which illumination is applied to the display unit, when the plurality of touch inputs match a predetermined pattern.