Print Image Acquisition TRIZ Cases

An under-display optical sensor detects pixel spreading from transparent spoof overlays to authenticate genuine fingerprints.

Capacitive fingerprint sensing module independently packaged on a substrate using flexible dielectric materials for enhanced antistatic protection.

Zero-sum linear combination filtering suppresses common-mode noise in fingerprint arrays while preserving lower frequency signal components.

Light directing channels in intermediate shielding layers resolve imaging quality versus light utilization trade-offs in under-screen fingerprint sensors.

Common cameras focus on lenses to capture fingerprints, reducing hardware costs and complexity.

A display device integrates a camera placement area and non-camera area to enable full-screen visual output.

A pixel reading device uses capacitors and a voltage generating circuit to pull up a compensation voltage during level reading.

A biometric authentication device uses IR-VCSELs and a single image sensor to capture fingerprint and vein data simultaneously.

Capacitance-shielding wires sandwich data lines in a fingerprint sensing apparatus, reducing crosstalk and self-capacitance for higher accuracy.

A touch pressure detection module uses a variable gap between substrates to measure applied force.

An optically variable film indicates a fingerprint recognition region on a display panel by changing color at oblique viewing angles.

A fingerprint sensor overlaps red sub-pixels more than green, blue, or white pixels to boost detection sensitivity on liquid crystal displays.

Driving circuit shares scan lines between display and sensing pixels to reduce peripheral area width.

Touch sensors detect fingerprints to execute specific input functions, resolving the trade-off between ease of operation and device complexity.

Parallel sensing electrodes and fewer driving electrodes acquire fingerprint data simultaneously.

Segmented optical sensors capture distinct fingerprint areas, spliced into one image to eliminate lens distortion and boost yield.

A fingerprint sensing device changes potential of sensing structures to detect finger presence via capacitive coupling.

Blue or green color resin filters sunlight interference to improve fingerprint recognition accuracy and anti-counterfeiting capabilities.

Segmented light sources activate sequentially to eliminate diffused light interference, improving measurement precision in total reflection fingerprint sensors.

Relocating the touch sensor to the rear glass allows conductive metal usage, resolving visibility and recognition rate trade-offs.

Inorganic insulation patterns overlap readout lines near open areas to reduce noise interference and improve signal integrity for fingerprint sensing.

Segmented optical collimating layer blocks scattered light from multiple finger positions, preventing image blur and improving recognition accuracy.

A supporting component with a gradient elasticity modulus structure reduces stress concentration around sensor holes in flexible displays.

Insulated shielding layer minimizes crosstalk to increase signal-to-noise ratio, resolving device complexity trade-offs in fingerprint identification substrate.

A touch substrate integrates fingerprint recognition units as shared touch structures to reduce device thickness.

Segmented bases with distinct detection zones resolve size constraints while enabling diverse multi-hand inputs for 3D environments.

A fingerprint sensing device uses a shading layer connected to signal lines through an insulating trench.

Dividing a large fingerprint sensor into sub-regions allows partial sensing and comparison, reducing processing time while maintaining security.

A sensor screen integrates a fingerprint sensor between transparent substrates to enhance recognition accuracy.

Interposing photo-sensing elements between segmented light-emitting sub-pixels resolves the trade-off between biometric accuracy and device complexity.

Optical adjusting layer eliminates moire patterns in biological feature identification devices by optimizing spatial frequency alignment between display pixels and sensing elements.

Liquid crystal switching alternates illumination patterns to detect presentation attacks while maintaining high identification accuracy.

Stacked first and second sensing patterns form capacitors that reduce sensing noise while maintaining compact package dimensions.

A display panel generates varied luminance frames to capture multiple fingerprint images for accurate recognition.

The apparatus synchronizes first and second clock signals with a defined phase delay to enhance signal-to-noise ratio and improve fingerprint recognition accuracy.

Adjusts panel voltage to keep sensing signals within the image sensing circuit operation range.

A ring electrode surrounding sensing electrodes cancels external electric fields, resolving electrostatic interference that reduces sensitivity and accuracy.

Periodically spaced geometric features in the acoustic shield absorb ultrasonic waves, reducing backscattering and enhancing mechanical robustness.

Asymmetric light sources illuminate the finger pressing area to capture separate fingerprint images for splicing into a target image.

Authentication apparatus adjusts fingerprint and electrocardiogram similarity weights based on skin humidity levels.

Conductive ESD protection layer overlaps thermal sensing pixels to shield active elements from electrostatic discharge damage.

A transparent fingerprint sensor pattern combines opaque metal traces with transparent conductive segments to enable high-resolution biometric detection.

A piezoelectric panel speaker vibrates a display to output sound while housing an ultrasonic fingerprint sensor within the panel structure.

A fingerprint sensor calculates new correction coefficients using a mathematical model to adapt sensing units.

A fingerprint sensing chip drives a driver integrated chip via a GPIO interface to disable touch sensing during capture periods.

A method captures reference images using driven light sources and environmental sensors to isolate target objects from noise.

A biometric sensor module uses a bent bottom flexible film to carry conductive lines within a compact layered structure.

A fingerprint sensor uses a side-positioned light source and a transparent base layer to guide illumination toward the substrate.

A mobile touch input method calculates relative displacement between finger positions to identify specific fingers and correct coordinate data.