Print Image Acquisition TRIZ Cases
- Contactless Fingerprint Capture Using Rotating Object-Plane Imaging
Successive angled captures with a rotating optical element expand fingerprint surface coverage and avoid bulky multi-camera hardware.
- Ultrasonic Fingerprint Transducer Layout for High-Voltage Isolation
A windowed passivation and drive-trace layout connects the piezoelectric transducer while isolating high-voltage signals to prevent chip interference.
- Sub-Pixel Layout for Precise Fingerprint Sensing in Displays
Reshaping emission and light-receiving areas enlarges photo-sensing pixels, improving fingerprint input resolution in display panels.
- In-Display Fingerprint Exposure Control for Fast Authentication
Exposure time is calculated from screen brightness and interface state to capture correctly exposed in-display fingerprint images faster.
- Display Panel Signal Sharing for Fingerprint Sensing Aperture Ratio
Shared signal lines let sub-pixels and bio-sensor units coexist, preserving pixel aperture ratio in high-resolution fingerprint displays.
- Under-Display Fingerprint Optics With Refractive Index Layering
Refractive index layering and optical patterning steer reflected light through the display to improve transmittance and fingerprint sensing.
- Fingerprint Sensing Circuit with Dual-Voltage Array State Control
Dual-voltage sequencing and reset control help fingerprint sensor arrays suppress parasitic capacitance and noise for more accurate ridge-valley detection.
- Fluorescence Fingerprint Imaging Optics for Rapid On-Site Capture
LED excitation, beam splitting optics, and filtering enable rapid on-site fingerprint imaging with clear results and lower contamination risk.
- Under-Display Fingerprint Sensor Filling Structure for Signal Reliability
A harder filling member above the fingerprint sensor cuts incident and reflected signal loss, improving under-display authentication reliability.
- Display Panel Light Conversion for Touch Sensing and Color Purity
Near-infrared light conversion enables touch and fingerprint sensing within the panel while absorbing leaked light to prevent subpixel color mixing.
- Optical Fingerprint Module with Multi-Layer Diaphragms to Reduce Crosstalk
Stacked diaphragm layers and micro-lenses collimate light on the sensor substrate to cut crosstalk, moiré stripes, and fingerprint read errors.
- Display Panel Subpixel Layout for In-Display Fingerprint Sensing
Y-shaped photosensitive units under subpixel gaps increase light capture and improve in-display fingerprint recognition without sacrificing screen area.
- Wafer-Bonded Microlens Fingerprint Sensor for Precise Alignment
A wafer-scale microlens substrate bonds directly to the fingerprint sensor IC to cut alignment error, simplify assembly, and preserve optical clarity.
- Sensing Region Shielding Structure for Stray Light Rejection
Overlapped openings in stacked light-shielding layers block stray and ambient light, improving optical sensing sensitivity with simpler fabrication.
- Under-Display Biometric Sensor With Wavelength-Selective CMOS Layer
A wavelength-selective photoelectric layer enables thin under-display biometric sensing while removing infrared and color filters.