Print Image Acquisition TRIZ Cases

Three-lens optical system achieves greater than 120-degree field of view to resolve fingerprint details within compact under-display module constraints.

A biometric sensor positioned at the edge of a wearable display uses a reflector to direct light for fingerprint detection.

Spatial frequency analysis filters capacitance signals to reject non-finger objects, reducing power consumption by avoiding unnecessary host device activation.

Separating detection electrodes from drive circuits onto opposite substrate surfaces reduces parasitic capacitance, improving fingerprint detection sensitivity.

Masked sensing elements block ambient light saturation, enabling reliable fingerprint imaging through thick cover glass.

A fingerprint sensing system measures subdermal compliance and surface adhesiveness to differentiate real fingers from spoof objects.

Integrating the heating element into the pyroelectric capacitor electrode eliminates lateral heating inefficiencies and reduces manufacturing complexity.

A pixelated touch screen generates a two-dimensional capacitance map to estimate entity orientation and identity.

Increasing the activation layer surface roughness to 9 nm improves sensitivity in small pixels, resolving silicon limitations.

A material identifying system transmits voltage signals to measure object impedance across frequencies for composition analysis.

A transparent TFT sensor layer records fingerprints directly without lenses.

A movable lens module adjusts the fingerprint collection area via a driving mechanism, resolving fixed-position recognition constraints.

A fingerprint sensor detects pressure intensity by analyzing ridge and valley height profiles using capacitance or optical sensing mechanisms.

A recording apparatus captures image sequences of an input object's surface structure to determine its orientation and position for display control.

Optical fingerprint sensing circuits capture multi-angle images to generate three-dimensional depth data for secure biometric identification.

Segmented electrode layers isolate drive and receiving regions in piezoelectric sensors, reducing electrical leakage that degrades fingerprint image accuracy.

Integrating a light guide into the sensor substrate reduces system thickness and structure complexity.

Spacer structures limit light incident angles on the sensor layer, resolving low contrast between skin ridges and valleys.

A display panel uses segmented light-blocking layer openings to route optical signals while blocking ambient interference.