Under-display Fingerprint Sensor for Seamless Application Decryption

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Solution Overview

Problem

Existing application decryption methods on terminals are cumbersome and inflexible, requiring users to input verification information through a verification interface, which complicates the process and disrupts the smooth operation of accessing encrypted applications.

Innovation Solution

A method that uses fingerprint sensors arranged below the display screen to acquire fingerprint information upon touch operations, allowing encrypted applications to be decrypted seamlessly without the need for a verification interface, enabling flexible and smooth access by matching fingerprint information with encryption fingerprint information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a verification interface is displayed to prompt user input for decryption, then security verification is ensured, but the decryption process becomes tedious and complex

Engineering Contradiction:
Improvesecurity verificationVSAvoiddecryption process
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent extracts the fingerprint sensor functionality from the traditional verification interface and integrates it directly into the display screen. The fingerprint sensor is embedded below the display screen at a position corresponding to the icon to be opened, allowing fingerprint verification to occur seamlessly during the icon tapping operation without requiring a separate verification interface or additional user steps.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the icon selection operation with the fingerprint verification operation into a single action. When the user taps on an encrypted application icon, the system simultaneously detects the touch operation and activates the corresponding fingerprint sensor, combining what were previously separate steps (clicking verify button, then fingerprint scan) into one unified gesture.

Inventive Principle:
Principle #5Merging (Combining)

2Measurement precision

If a separate verification interface is used for decryption, then verification accuracy is maintained, but the operation flow becomes disrupted and less smooth

Engineering Contradiction:
Improveverification accuracyVSAvoidoperation flow
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent positions the fingerprint sensor at a location corresponding to the icon before the user needs to verify. When the user taps the icon, the fingerprint sensor is immediately activated at the expected position, eliminating delays associated with navigating to a separate verification interface. The verification capability is prepared in advance and integrated into the normal interaction flow.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If fingerprint sensors are integrated below the display screen at icon positions, then decryption flexibility is improved, but device structure complexity increases

Engineering Contradiction:
Improvedecryption flexibilityVSAvoidsensor arrangement
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent makes the display screen serve multiple functions: it displays visual information, receives touch operations, and houses fingerprint sensors for biometric verification. By integrating the fingerprint sensors below the display screen at icon positions, the display screen becomes a universal interface that handles both visual output and biometric authentication, eliminating the need for separate physical fingerprint buttons or dedicated verification hardware.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS10862686B2Application decryption method, terminal and non-transitory computer-readable storage medium
Publication Date: 2020.12.08 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • US10862686B2 patent drawing
  • US10862686B2 patent drawing
  • US10862686B2 patent drawing

AI summary

Provided are an application decryption method, a terminal and a non-transitory computer-readable storage medium and relates to a technical field of terminals. In the method, a touch operation is acquired through a display screen of a terminal; fingerprint information of the touch operation is acquired through a fingerprint sensor located at a position corresponding to the touch operation, the fingerprint sensor being arranged below the display screen of the terminal; a target application that is encrypted is decrypted in a case where the fingerprint information of the touch operation is matched with encryption fingerprint information of the target application.