Print Image Acquisition TRIZ Cases

Non-overlapping first and second electrode projections on a piezoelectric layer resolve sensitivity-compactness trade-offs in ultrasonic fingerprint sensors.

Integrated black matrix openings prevent external light reflection and luminance degradation while maintaining thin display panel thickness.

A waveguide structure orthogonally redirects infrared light from an image sensor side to illuminate a finger for biometric capture.

A fingerprint sensor places a coupling electrode on the substrate backside to improve capacitive coupling while preventing electrostatic discharge interference.

Embedding sensing patterns in a through-hole reduces package thickness while maintaining high sensitivity and structural integrity.

Signal processing circuits generate processed sensing signals with different polarities to enhance signal strength.

A fingerprint sensing device uses a liquid crystal layer to focus illumination light and reflected signals for improved image clarity.

Multi-angle light signals enable under-screen fingerprint sensors to capture distinct 2D images for structural verification.

Three-lens optical imaging assembly with negative and positive refractive powers achieves high imaging quality.

A fingerprint identification circuit uses an acquisition module to cancel threshold voltage offsets in the source follower.

Distinguishable color illumination and pressure-dependent pixel intensity analysis enhance biometric security.

Segmenting stimulation into orthogonal frequencies detects capacitance changes without increasing dynamic range or power consumption.

Millimeter wave radar generates 3D hand images to bypass optical skimming and identity theft vulnerabilities.

A light sensor controller switches to fingerprint mode upon detecting specific signal intensity changes.

An external optical fingerprint device uses a flat refractor plate and mirrors to capture images via a portable terminal camera.

A display panel integrates a fingerprint sensor with a light shield layer containing openings to route reflected light for identification.

A dual-layer adhesive structure with variable hardness isolates the flexible printed circuit from substrate deformation forces.

Calibrating fingerprint sensors using prestored non-fingerprint image data to remove overlay artifacts from captured biometric scans.

Terminal displays overlapping fingerprint patterns to guide user finger placement, collecting data from multiple angles without interrupting the process.

Internal bias signal generation supplies driving signals to sensing elements, preventing parasitic capacitance degradation in metallic devices.

A fingerprint identification apparatus uses a coated light blocking layer with inverse trapezoid holes to direct optical signals.

Aligning gate drive and readout circuits along one axis reduces the y-dimension size of sensor devices, resolving layout complexity in compact mobile designs.

Conductive probes extend from an overlapping drive and pickup grid to detect fingerprint features through an insulating overlay.

A detecting device uses an electrode selection circuit to alternate drive signal potentials across multiple periods.

Under-display fingerprint sensor acquires multiple biometric images simultaneously across segmented touch screen zones.

A speckle-based authentication apparatus uses an optical source to radiate light onto an object and a detector to capture the resulting interference pattern.

Dynamic threshold adjustment in event-driven pixels resolves light interference and dark environment sensitivity during fingerprint authentication.

A microelectronic pressure sensor uses a MOSFET transistor with a mobile gate to capture surface profiles.