Vehicle Display Touch Sensor Fingerprint Authentication
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Solution Overview
Problem
Existing vehicle security systems using remote controllers or security cards are vulnerable to theft if lost, as users must carry these items, increasing the risk of vehicle theft.
Innovation Solution
A display device with a touch sensor that senses user touch and generates information about fingerprints, position, and movement, operating in different resolutions to authenticate users and control vehicle functions, including power and ignition, providing an integrated authentication and control system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a remote controller or security card is used for vehicle authentication, then the user can control vehicle locking and unlocking, but the user must carry these items which increases the risk of vehicle theft if lost
Solution Approach 1:
The patent replaces physical authentication objects (remote controller, security card) with a biological authentication system using fingerprint recognition. The touch sensor detects fingerprint patterns through capacitance changes, substituting mechanical/card-based authentication with biometric verification, thereby eliminating the need to carry physical items while maintaining security.
Solution Approach 2:
The patent creates a digital copy of the user's fingerprint pattern stored in memory for authentication comparison. Instead of relying on physical objects, the system captures and stores an electronic replica of the fingerprint, enabling authentication through pattern matching without requiring the user to carry any physical authentication device.
2Measurement precision
If the touch sensor operates at high resolution to capture fingerprint details, then authentication accuracy is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic resolution adjustment in the touch sensor, switching between high resolution mode for fingerprint capture and lower resolution mode for general touch detection. The sensor adapts its operating resolution based on the detected touch pattern, using high resolution only when fingerprint authentication is required, thereby reducing overall power consumption while maintaining authentication accuracy.
Solution Approach 2:
The patent changes the operational parameters of the touch sensor dynamically, adjusting the readout resolution and sampling rate based on the authentication state. During fingerprint authentication, the sensor operates at full resolution, but during normal touch operations, it reduces resolution to minimize power consumption, thus optimizing the balance between measurement precision and energy usage.
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
Enhances security by allowing secure vehicle access and control through touch-based authentication, reducing the risk of theft and offering optimized user interfaces tailored to individual preferences.
Implementation Method 1
a touch sensor disposed on the display panel and configured to sense a touch of a user and generate touch information about the touch. The touch sensor may include a plurality of sensor pixels configured to sense a change in capacitance corresponding to the touch
Data Source
AI summary
A display device for a vehicle may include a display panel configured to display an image and a touch sensor configured to sense a touch of a user and generate touch information about the touch. The touch sensor may be operated in a first mode or a second mode. The touch information may include first information about a fingerprint of the user, second information about a position of the touch, and third information about movement of the touch. When the touch of the user is sensed, the touch sensor may operate in the first mode and generate the first information. When the generation of the first information is completed, the touch sensor may operate in the second mode and generate the second information and the third information. The power and the ignition of the vehicle may be controlled using the touch information.