Fingerprint Recognition Area in Touch Display Screen
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Solution Overview
Problem
Current smartphone fingerprint unlocking methods often lead to inaccurate fingerprint recognition due to accidental triggering of the fingerprint recognition device when users touch areas outside the designated fingerprint area, resulting in inefficient power management and slower unlocking processes.
Innovation Solution
Incorporating a fingerprint recognition area within the touch display screen, where the touch display screen instructs the fingerprint recognition device to collect data only upon a first touch operation in this designated area, and waking up both the application processor and fingerprint recognition device upon a second touch in a larger area to remind the user of the fingerprint recognition location, thereby improving accuracy and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the fingerprint recognition device is placed in a separate area (Home button or back), then the unlocking function is available, but accidental triggering occurs when users touch areas outside the designated fingerprint area
Solution Approach 1:
The patent merges the fingerprint recognition device with the touch display screen by integrating it into a specific area of the screen. This combination allows the fingerprint recognition area to be part of the display surface, enabling accurate fingerprint collection while preventing accidental triggering through precise area definition and touch operation detection.
Solution Approach 2:
The patent applies local quality by designating a specific area on the touch display screen for fingerprint recognition. Only touches within this defined area trigger fingerprint data collection, while touches outside this area do not activate the fingerprint function. This spatial differentiation resolves the contradiction by making the system responsive only where intended.
2Speed
If the fingerprint recognition device is always active, then unlocking is faster, but power consumption increases
Solution Approach 1:
The patent implements periodic action by activating the fingerprint recognition device only when a touch operation is detected in the designated area. The system transitions from a continuously active state to an on-demand active state, triggered by user interaction. This reduces power consumption while maintaining fast unlocking performance when needed.
Solution Approach 2:
The patent applies preliminary action by detecting touch operations before activating the fingerprint recognition function. The system monitors the touch display screen for user interaction and only then activates the fingerprint data collection process, ensuring the device is ready to unlock quickly when the user intends to do so, while conserving power during idle periods.
3Measurement precision
If the fingerprint recognition area is integrated into the touch display screen, then accuracy is improved by preventing accidental triggering, but device complexity increases
Solution Approach 1:
The patent merges the fingerprint recognition device with the touch display screen into a single integrated component. This integration eliminates the need for separate physical buttons or dedicated fingerprint areas, reducing the number of discrete parts while improving accuracy through precise area definition on the screen.
4Speed
If the system wakes up the processor and fingerprint device upon any touch, then response time is fast, but power management efficiency decreases
Solution Approach 1:
The patent applies local quality by restricting the wake-up trigger to touches within the specific fingerprint recognition area of the touch display screen. Only touches within this defined local region activate the processor and fingerprint device, while touches elsewhere do not trigger system wake-up. This spatial precision optimizes both response time for intended operations and power management by avoiding unnecessary activations.
Data Source
AI summary
A method for controlling unlocking and related products are provided. The method includes the following. A touch display screen of a terminal instructs a fingerprint recognition device of the terminal to collect fingerprint data upon detecting a first touch operation in a first area. The fingerprint recognition device collects the fingerprint data and sends the fingerprint data to an application processor AP of the terminal. The AP compares the fingerprint data with preset fingerprint template data in the terminal, and lights up the touch display screen and unlocks a lock-screen interface when the fingerprint data is matched with the fingerprint template data.