Print Image Acquisition TRIZ Cases
- Under-Display Optical Fingerprint Sensor Anti-Spoofing
An under-display optical sensor detects pixel spreading from transparent spoof overlays to authenticate genuine fingerprints.
- Smart Card Fingerprint Module Packaging Structure
Capacitive fingerprint sensing module independently packaged on a substrate using flexible dielectric materials for enhanced antistatic protection.
- Fingerprint Sensing Array Zero-Sum Filtering for Noise Reduction
Zero-sum linear combination filtering suppresses common-mode noise in fingerprint arrays while preserving lower frequency signal components.
- Under-screen Fingerprint Sensor Light Directing Channels
Light directing channels in intermediate shielding layers resolve imaging quality versus light utilization trade-offs in under-screen fingerprint sensors.
- Fingerprint Identification Using Common Camera Lens Focus
Common cameras focus on lenses to capture fingerprints, reducing hardware costs and complexity.
- Under-screen Camera Display with Optical Fingerprint Sensor
A display device integrates a camera placement area and non-camera area to enable full-screen visual output.
- Pixel Reading Device for OLED Fingerprint Sensing Common Mode Compensation
A pixel reading device uses capacitors and a voltage generating circuit to pull up a compensation voltage during level reading.
- Biometric Authentication Device Using IR-VCSELs and Single Sensor
A biometric authentication device uses IR-VCSELs and a single image sensor to capture fingerprint and vein data simultaneously.
- Fingerprint Sensing Apparatus with Capacitance-Shielding Wires
Capacitance-shielding wires sandwich data lines in a fingerprint sensing apparatus, reducing crosstalk and self-capacitance for higher accuracy.
- Touch Pressure Detection Module for Misoperation Reduction
A touch pressure detection module uses a variable gap between substrates to measure applied force.