Print Image Acquisition TRIZ Cases

Overlapping light-shielding regions and transmitting holes guide large-angle reflected light to the sensor, improving under-screen identification accuracy.

A translucent mold compound and underfill package cuts sensor size and cost while improving interconnect protection and reliability.

Angled openings and lens overlap break pixel-sensor moiré, improving light focus and fingerprint detection accuracy.

An offset gate and light-transmissive source or drain preserve light-receiving area, improving signal-to-noise ratio at higher sensor resolution.

A gate-to-source/drain gap lowers dark current in display-panel light sensors, improving noise immunity, sensitivity, and fingerprint accuracy.

A gradient-modulus support around the under-screen sensor hole spreads lamination stress to prevent imprints, dark lines, and afterimages.

A chip-edge light blocking layer and filter suppress stray light in under-display fingerprint sensing while keeping the module thin.

Interlaced light sources and photodetectors use thick glass to capture high-resolution fingerprints without near-field optics or sensor thinning.

A porous layer with defined holes scatters and collects external light, raising semiconductor light absorption and phototransistor sensitivity.

A split first electrode and connecting part raise series resistance in the photodiode, cutting reverse-bias leakage and improving fingerprint signal accuracy.

Using only two insulating layers above the planarization layer cuts photomasks and process steps while supporting accurate optical fingerprint recognition.

Transparent and metal electrode placement boosts light reaching the conversion layer, improving in-screen fingerprint photodiode efficiency.

Overlapping optical systems guide light and suppress noise in a fingerprint-sensing display, improving SNR while preserving display quality.

A low-index dielectric layer separates optical paths so all emitters can fire together with clearer fingerprint edge detection.

By averaging signals from multiple pixel circuits, this fingerprint image sensor cuts area and power while reducing reset noise.

Dispersed metal particles in the intrinsic semiconductor layer boost light absorption and photocurrent, improving wet fingerprint sensor sensitivity.

Angled multi-opening light-blocking layers cut display moiré and crosstalk, improving photodiode fingerprint detection accuracy.

Pixel-wise DAC compensation corrects relative illumination and lens tilt offsets in optical fingerprint sensors, improving signal uniformity.

Compensation capacitors suppress signal-dependent voltage swings at floating nodes, reducing charge injection and saturation in sensing circuits.

Direct side illumination through a mounted finger reveals thin-film light transmission, improving fake fingerprint detection accuracy.

Dual light blocking layers constrain reflected and lateral light to improve fingerprint sensing accuracy and privacy in display authentication.

Curved opening regions in an integrated display fingerprint sensor cut light diffraction while keeping the module thin and sensing accurate.

Reversing current between acquisitions neutralizes residual charge, reducing afterimages and improving texture recognition accuracy in display panels.

Equal overlap between RGB sub-pixels and Y-shaped photosensitive units reduces signal distortion and improves full-screen fingerprint recognition.

A passivation-window electrode layout connects the transducer while shielding the chip from high-voltage drive interference and breakdown.

Skip connections with zero-padded channels and attention blocks improve biometric spoof detection accuracy while keeping neural network complexity low.

A closed-loop conductive pattern around light receiving elements enables touch sensing and biometric recognition without blocking light or adding interference.

Maps identified fingers to specific touch surfaces to improve typing guidance, access control, and ergonomic personalization.

Segmented light-transmitting and light-blocking regions guide sensor light while cutting noise light and narrowing viewing angle.

Angled moisture-discriminating optics use total internal reflection to separate wet regions from pores for more reliable fingerprint imaging.

Shared light-emitting and photosensitive layers shorten the finger-to-sensor path and improve fingerprint recognition while preserving display function.

Pre-trained feature extraction and fusion networks assess fingerprint medium sameness to improve recognition accuracy across unstable fingers and novel materials.

A split sensing region with selective infrared filtering captures fingerprints and liveness on one sensor, cutting space and cost.

Separate fingerprint electrodes and multi-block sensing enable full-screen recognition on low-resolution displays without touch or time-sharing scanning.

Electrical insulation between pixel and sensing injection layers cuts noise, improving biometric sensing accuracy in integrated displays.

Using only two insulating layers on the planarization layer cuts photomasks and simplifies optical fingerprint display panel manufacturing.

A stray-capacitive electrode structure boosts fingerprint scan speed, noise immunity, and high dpi sensing with simpler readout circuitry.

A contrast aperture layer and angled point-light illumination raise ridge-valley contrast in direct optical fingerprint and document scanning.

Ambient-temperature parameter tables let an ultrasonic fingerprint module adjust capture settings for clearer images and higher recognition success.

A touch heatmap and centroid mapping guide thumb placement over an under-display sensor to capture a full fingerprint with fewer taps.

By overlapping the circuit layer beneath the pixel array and adding shielding, this case raises array proportion while shrinking fingerprint chip area.

An edge light source and scattering holes let optical sensors share the display area without sacrificing pixel resolution or detection accuracy.

A magnetic aperture selector and fixed camera setup keep fingerprint images consistent across infants to adults while rejecting external light.

Selective dye absorption and an inorganic absorbing layer block external light noise while preserving sensing light for reliable optical fingerprint recognition.

A stacked two-substrate fingerprint package improves smart card thinness while preserving sensing reliability and secure authentication.

Signal-line slits bridged by coupling wires reduce oxidation variation in oxide TFT substrates, improving threshold voltage consistency.

Angled illumination redirects skin reflections away from the sensor, reducing wrinkle visibility and improving contactless biometric extraction.

Common-mode cancellation through an RLC network and feedback path improves ultrasonic fingerprint sensing in foldable displays by avoiding ADC saturation.

Asymmetric transmission holes aligned to a polarization axis raise biometric sensing SNR and improve genuine-versus-fake fingerprint detection.

Segmented emitters, photosensors, and a light-blocking layer compare optical responses to separate real fingerprints from fake prints.

Microlayer interference and structured surface features cut Moire-like fingerprint noise while reflecting visible light and passing infrared light.

Light transmission holes placed within signal-line boundaries improve under-display fingerprint sensitivity without blocking pixel circuits.

Finger-contact ESD can disrupt optical fingerprint imaging; a covering anti-static layer blocks discharge and guides static away from the substrate.

Dynamic mode switching responds to noise, object detection, or touch position to improve accuracy while reducing touch-module power use.

Different wavelengths focus at different depths; paired microlenses, separated sensing elements, and collimation improve image recognition and light collection.

Sensor controller corrects fingerprint data using location-specific compensation coefficients stored in memory.