107results about How to "Improve fingerprint recognition performance" patented technology

The present invention provides a correction method, device and terminal of fingerprint images. The correction method of the fingerprint images comprises the steps of obtaining the information of the pre-stored non-fingerprint images; acquiring the fingerprint images; and correcting the fingerprint images according to the information of the non-fingerprint images. According to the method of the present invention, the non-fingerprint image parts in the acquired fingerprint images can be removed, and the accuracy of the acquired fingerprint images is improved, thereby improving the fingerprint identification effect.

This invention relates to an embedded system fingerprint identifying and matching method belonging to image processing and mode identifying technology realm, comprising the following steps: first, basing on area line character calculating direction graph, then making neighborhood differences statistic to realize fingerprint line enhancement; second, thinning fingerprint by adopting ossification method; third, extracting fingerprint character points by structure character; last, matching the character points. The invention can process image of fingerprint with multiple breakpoints, enhance restoring ability to breakpoint and scar, improve identifying ability to character point with similar structure.

The invention discloses a display panel and a display device, and belongs to the technical field of display. A display panel comprises a substrate; a light shielding layer located at one side of the substrate, wherein the light shielding layer comprises a plurality of light shielding parts; a reflecting film layer which is located at one side, far away from the substrate, of the light shielding layer and comprises a plurality of reflecting parts; a photosensitive film layer which is located at one side, far away from the substrate, of the reflecting film layer, and comprises a plurality of fingerprint recognition units. The orthographic projection of the light shielding parts to the substrate is a first projection, and the orthographic projection of the reflecting part to the substrate isa second projection, and the orthographic projection of the fingerprint recognition unit to the substrate is a third projection, wherein the first projection, the second projection and the third projection are overlapped. The display device comprises the display panel. The luminous flux received by the fingerprint recognition unit can be increased, the recognition sensitivity of the fingerprint recognition unit is improved, and the fingerprint recognition effect of the display panel is improved.

The invention provides a mutual capacitive fingerprint identification device, a preparation method, a display panel and a display device. The ability of fingerprint identification is improved. The mutual capacitive fingerprint identification device provided by the invention comprises a glass substrate, a glass cover, a drive electrode and a sensing electrode, wherein the drive electrode and the sensing electrode are located between the glass substrate and the glass cover. The drive electrode and/or the sensing electrode have/has a curved surface structure.

Disclosed is a fingerprint identification sensor, which comprises: a sensor unit, comprising a capacitor array formed by a plurality of capacitor induction units and having an output, a power supply and a sensor ground output; a conversion circuit, connected to the device ground of the terminal device, and the output and the sensor ground of the sensor unit, and configured to, upon modulating the driving signal to the modulated signal, output the modulated signal to the sensor ground; an energy storage capacitor, connected between the power supply and the sensor ground, and configured to stabilize an operating voltage of the sensor unit; a high-speed transistor switch, connected to the power supply, and configured to perform synchronous switch-on and switch-off according to status of the conversion circuit power supply; and a power supply, connected to the conversion circuit and the power supply of the sensor unit via the high-speed transistor switch.

The invention discloses a fingerprint identification device and a manufacturing method thereof, and a touch control display device, and is used to prevent the problem of a poor fingerprint identification effect caused by the fact that the fingerprint identification device touched by a wet hand. The fingerprint identification device comprises a substrate, photosensitive induction units disposed on the substrate and arranged in an array, and hydrophobic structures disposed on the photosensitive induction units.

The invention discloses a driving method and equipment for a fingerprint recognition device, and the method comprises the steps: controlling the same photosensitive element to receive light of a ghostimage area and light of an image receiving area at least at intervals for a preset ghost image elimination duration in a fingerprint input stage; Therefore, the photosensitive element generates a ghost image after receiving the light in the ghost image area; According to the embodiment of the invention, the residual image can be dissipated to the error acceptable range through the preset residualimage elimination duration, so that the photosensitive element can be regarded as that the residual image is eliminated when receiving the light in the image region, the accuracy of the electric signal generated by the photosensitive element is improved, the accuracy of the collected fingerprint is further improved, and the fingerprint identification effect is improved.

The embodiment of the invention discloses a display panel and a display device. The display panel comprises a drive back plate with multiple pixel circuits and a capacitance fingerprint identification structure, wherein the drive back plate is a flexible back plate; the display panel also comprises a flexible cover plate covering the front of the flexible back plate; the capacitance fingerprint identification structure is positioned in a border area between the flexible back plate and the flexible cover plate; or the capacitance fingerprint identification structure is positioned on the back of the flexible back plate. Through the way, the capacitance semaphore received by the capacitance fingerprint identification structure can be increased so as to improve the fingerprint identification effect.

The invention relates to the field of display technology, and provides a display panel with a fingerprint recognition function. The display panel comprises a metal light shielding layer, an electrodelayer and an insulating layer; a first spacer region is disposed on the metal light shielding layer; a second spacer region is disposed on the electrode layer, wherein the second spacer region is offset from the first spacer region; the insulating layer is disposed between the metal light shielding layer and the electrode layer, and the insulating layer is provided with a recessed region; the orthographic projection of the recessed region on the metal light shielding layer is at least partially located between a first boundary and a second boundary; the first boundary is an orthographic projection of the sidewall of the first spacer region, away from the second spacer region, on the metal light shielding layer. The second boundary is an orthographic projection of the sidewall of the secondspacer region, away from the first spacer region, on the metal light shielding layer. The stray light refracted to the first spacer region through the insulating layer is reduced, so that the stray light incident on the photoelectric sensor is reduced, the fingerprint acquisition contrast is higher, the obtained fingerprint image is clearer, and the fingerprint recognition effect is better.

The embodiment of the invention provides a light sensation driving circuit. A display module group comprises a first power supply signal end, a driving transistor, an organic light-emitting element and a second power supply signal end which are connected in series. The driving transistor is used for generating driving current; the light sensing module group comprises a signal generation module anda reading module; the signal generation module is used for generating a light sensation signal under the action of illumination; the reading module is used for reading the light sensation signal; thesignal generation module comprises a light-sensitive diode and a first storage capacitor which are connected in series, and a first node arranged between the light-sensitive diode and the first storage capacitor; the first node is connected with the first electrode of the driving transistor; the signal generation module is electrically connected to the grid electrode of the driving transistor; the reading module is electrically connected between the second electrode of the driving transistor and the organic light-emitting element. The photosensitive driving circuit for fingerprint identification under the screen is integrated in the screen, and the fingerprint identification effect is improved while the fingerprint identification function is realized through the circuit design.

The invention discloses an auxiliary device of attendance machine fingerprint collector. The device comprises a scrubbing mechanism, a liquid delivery mechanism and a drying mechanism, wherein the scrubbing mechanism is arranged on the left side of a fingerprint collecting screen, the scrubbing mechanism comprises a first switch, a base, a rotary plate, a motor and a scrubbing head, the left side of the rotary plate is connected to the base in a hinged mode, the inner surface of the right side of the rotary plate is provided with the scrubbing head, and one end of a pulling rod is fixedly connected to the outer surface of the right side of the rotary plate; the liquid delivery mechanism is arranged on the right side of the fingerprint collecting screen, and the liquid delivery mechanism comprises a first shell with the open upper end surface, a liquid storage bottle contained in the first shell and a first output unit and a second output unit arranged on the upper end surface of the liquid storage bottle in a penetrating mode; the drying mechanism is arranged at the upper end of the fingerprint collecting screen, and the drying mechanism comprises a second switch, a second shell and a fan contained in the second shell; both the first switch and the second switch are electrically connected with a controller, and the controller is electrically connected with the motor and the fan. The device has the advantages that stains on the fingerprint collecting screen can be precisely cleaned, and the capacity of fingerprint recognition is improved.

An optical fingerprint sensor module includes an optical fingerprint sensor; The self-luminescence display panel comprises a self-luminescence display panel positioned above the optical fingerprint sensor, wherein light can pass through the self-luminescence display panel from top to bottom; A light collimator panel positioned between the optical fingerprint sensor and the self-luminescent displaypanel. The performance of the optical fingerprint sensor module is improved.

The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and is compatible with the requirements exerted by display and fingerprint recognition functions on a light emitting device, thereby improving the fingerprint recognition effect. The display panel comprises a plurality of light emitting devices and a plurality of fingerprint recognition sensors; pixel drive circuits which are each corresponding to one light emitting device; and a light emitting drive circuit which is used for controlling the plurality of light emitting devices to emit light, and outputting first pulse signals to the corresponding pixel drive circuit in a fingerprint recognition time period, and outputting second pulse signals to the corresponding pixeldrive circuit in a non-fingerprint-recognition time period, wherein the period of the first pulse signals is different from the period of the second pulse signals.

An electronic device includes: a transparent member comprising a transparent material; a display panel disposed under the transparent member; a shock absorption sheet disposed under the display panel, and having an opening formed in a region thereof; a biological sensor disposed to face the display panel, and disposed in at least a portion of the opening; a filler material filling at least some space in the opening formed between the biological sensor and the display panel; and a seal disposed between the biological sensor and the shock absorption member and configured to prevent the filler from being discharged outside the opening.

The invention relates to an intelligent storage cabinet, which comprises a hollow cabinet body. The cabinet body is provided with a door body that can be opened and closed. The intelligent storage cabinet also comprises a fingerprint acquisition device, a control device, an indicating lamp and an electronic lock. The fingerprint acquisition device and the indicating lamp are both arranged on the external surface of the door body. The electronic lock is arranged on the edge of the door body. A hollow device box is arranged inside the cabinet body. The control device is arranged in the device box. The fingerprint acquisition device and the indicating lamp are connected with the control device through signal lines. The electronic lock is in wireless connection with the control device. Fingerprints of a user can be verified by the fingerprint acquisition device, the control device controls the door body to be opened and closed through the electronic lock, the indicating lamp changes if articles are fetched or returned, a management worker can know states of the articles in real time according to changes of the indicating lamp, and article loss and waste due to conventional manually missed registration is avoided.

The embodiment of the invention discloses a display device. The display device comprises a substrate, a light-emitting component array, an optical conversion layer and an optical fingerprint sensing layer, wherein the light-emitting component array is arranged on the substrate, the optical conversion layer is arranged at one side, far away from the substrate, of the light-emitting component arrayand can be used for converting a part of light emitted from the light-emitting component to near-infrared light, and the optical fingerprint sensing layer is arranged at one side, far away from the optical component, of the substrate. With the display device provided by the technical scheme of the embodiment of the invention, the fingerprint identification performance of the display device is improved, and the optical fingerprint identification accuracy and sensitivity is improved.

The invention discloses a fingerprint identification driving circuit, a module, a touch screen and a driving method, and belongs to the technical field of touch control. The circuit comprises a driving transistor; a first charge storage sub-circuit; a second charge storage sub-circuit; a reset sub-circuit which is configured to reset the potential of the first end of the first charge storage sub-circuit to a first potential, and resetting the potential of the first end of the second charge storage sub-circuit to a second potential; a data acquisition sub-circuit which is configured to write the output voltage of the ultrasonic sensor into the first end of the first charge storage sub-circuit; a circuit compensation sub-circuit which is configured to charge the second charge storage sub-circuit through the first charge storage sub-circuit and the driving transistor until the potential of the first end of the second charge storage sub-circuit is the sum of the output voltage of the ultrasonic sensor and the threshold voltage of the driving transistor; and an output control sub-circuit which is configured to transmit the current signal outputted by the driving transistor to a signal reading circuit.

The invention discloses a fingerprint identification device and electronic equipment, which can improve the performance of the fingerprint identification device and reduce the cost. The fingerprint identification device comprises: a fingerprint identification module, which comprises a micro lens; at least two diaphragm layers, wherein each of the at least two diaphragm layers is provided with a light through hole to form a plurality of light guide channels in different directions, and in the at least two diaphragm layers, the non-light-through hole area of at least one first diaphragm layer isused for absorbing visible light, and the non-light-through hole area of at least one second diaphragm layer is used for absorbing visible light; the non-light-transmitting hole area of at least onesecond diaphragm layer is used for transmitting non-pixel sensitive light and absorbing the pixel sensitive light; a plurality of pixel units is arranged below the at least two diaphragm layers and ispositioned at the bottoms of the plurality of light guide channels; wherein after fingerprint optical signals returned after being reflected or scattered by a finger above the display screen are converged through the micro lens, a plurality of target fingerprint optical signals in different directions are respectively transmitted to the plurality of pixel units through the plurality of light guide channels, and the plurality of target fingerprint optical signals are used for detecting fingerprint information of the finger.

A fingerprint recognition device and electronic equipment which can improve the success rate of fingerprint recognition are disclosed. The fingerprint recognition device includes: a pixel array, including a plurality of first pixel units and a plurality of second pixel units; a 1/4 wave plate, which is arranged above the pixel array; and a first linear polarizer, which is arranged on the 1/4 waveplate and the multiple first pixel units, wherein the polarization direction of the first linear polarizer is at an angle of 45 degrees with the fast axis of the 1/4 wave plate to block first fingerprint signals in fingerprint light signals reflected or scattered back by the finger above the display; the first fingerprint optical signal is an optical signal directed to a plurality of the first pixel units; the plurality of second pixel units are used to receive a second optical signal, and the second optical signal includes the second fingerprint optical signal in the fingerprint optical signals, the second fingerprint optical signal is an optical signal directed to a plurality of second pixel units; the plurality of first pixel units are used to receive the first screen optical signal passing through the 1/4 wave plate and the first linear polarizer, and the first screen light signal is used to correct the second optical signal.

The invention discloses a fingerprint identification circuit, a working method thereof, a display panel and a display device, and belongs to the technical field of display. The fingerprint identification circuit comprises a fingerprint identification unit, a comparison unit and a selection unit, wherein the selection unit provides a fingerprint current signal to a fingerprint current output end, and also provides a reference current signal to a reference current output end, and the fingerprint identification signal is read according to the difference between the fingerprint current signal andthe reference current signal. The working method of the fingerprint identification circuit comprises a signal reset stage, a signal detection stage and a signal reading stage. The display panel comprises the fingerprint identification circuit. The display device comprises the display panel. According to the fingerprint identification circuit, the interference signal and the fingerprint signal aresimultaneously output at the same time and then deducted, so that the situation that other variables are possibly introduced when the fingerprint signal is read at different time points is avoided, and the signal-to-noise ratio of the fingerprint identification signal can be improved, and the anti-interference capability is enhanced, and the fingerprint identification effect is improved.