Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
117results about How to "Improve the accuracy of fingerprint recognition" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Display panel and display device
ActiveCN106940488AImprove the accuracy of fingerprint recognitionReduce reflected lightNon-linear opticsAcquiring/reconising fingerprints/palmprintsDisplay deviceComputer science
The embodiment of the invention discloses a display panel and a display device. The display panel comprises a display module, a fingerprint recognition module, and at least one layer of black matrix, wherein the display module comprises a first substrate and multiple pixel circuits, the first substrate comprises a display region and a non-display region around the display region; multiple pixel circuits are located inside the display region of the first substrate, each pixel circuit comprises multiple thin film transistors, each thin film transistor comprises a grid electrode, a source electrode and a drain electrode; the fingerprint recognition module is formed inside the display region at one side, facing away from the thin film transistor, of the first substrate; the at least one layer of black matrix is arranged between the thin film transistor and the fingerprint recognition module, the black matrix comprises shading areas and an opening area located between the shading areas; the projections of the grid electrode, the source electrode and the drain electrode of the thin film transistor are located inside the projection of the shielding area on the first substrate. An aim of improving the fingerprint recognition precision of the display panel can be achieved by use of the embodiment of the invention.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
Organic light-emitting display panel and manufacturing method thereof, and electronic equipment
ActiveCN107425038AIncrease the areaImprove the accuracy of fingerprint recognitionSolid-state devicesSemiconductor/solid-state device manufacturingFingerprintCapacitance
Embodiments of the invention disclose an organic light-emitting display panel and a manufacturing method thereof, and electronic equipment. The organic light-emitting display panel comprises an array substrate, a photosensitive recognition array, and photosensitive detection circuits, the photosensitive recognition array comprises a plurality of photosensitive recognition devices, each photosensitive detection circuit comprises a common voltage input layer and a photosensitive detection switch, the photosensitive detection switch comprises a drain electrode metal layer, a first electrode of the photosensitive recognition device is electrically connected with the drain electrode metal layer of the corresponding photosensitive detection circuit, a second electrode of the photosensitive recognition device is electrically connected with the common voltage input layer of the corresponding photosensitive detection circuit, the common voltage input layer and the first electrode of the corresponding photosensitive recognition device are overlapped in a direction vertical to the array substrate, or the common voltage input layer and the drain electrode metal layer of the photosensitive detection circuit are overlapped in the direction vertical to the array substrate to form a photosensitive storage capacitor. According to the organic light-emitting display panel and the manufacturing method thereof, and the electronic equipment, the function of embedded fingerprint recognition is realized by the organic light-emitting display panel, and the effect of fingerprint touch control is realized.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD
Display device and fingerprint identification method thereof and electronic device
ActiveCN107122742AImprove the accuracy of fingerprint recognitionSolid-state devicesDiodeDot matrixDisplay device
An embodiment of the invention discloses a display device and a fingerprint identification method thereof and an electronic device. The display device comprises a display panel and a cover plate arranged on the display panel. The display panel comprises an array substrate, an organic light-emitting layer arranged at one side, facing to the cover plate, of the array substrate, and a fingerprint identification array. The organic light-emitting layer comprises a plurality of organic light-emitting structures. A first surface, away from the array substrate, of the cover plate is a light output surface of the display device. In the fingerprint identification stage, the plurality of organic light-emitting structures realize displacement and light emitting according to a first light-emitting dot matrix; the distance between any two adjacent organic light-emitting structures in the first light-emitting dot matrix is larger than or equal to minimum no-crosstalk distance; and the minimum no-crosstalk distance is the maximum radius of a coverage area formed on the fingerprint identification array when light emitted by any one organic light-emitting structure is reflected by the first surface of the cover plate. Fingerprint identification units are not influenced by crosstalk of other organic light-emitting structures, so that fingerprint recognition accuracy of the display device can be improved.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
Display panel and display device
ActiveCN107066162AReduce exposureImprove the accuracy of fingerprint recognitionStatic indicating devicesSolid-state devicesVertical projectionLight sensing
The embodiment of the invention discloses a display panel and a display device. The display panel comprises an array substrate, a display unit and a fingerprint recognition unit, wherein the array substrate comprises a substrate body and a display driving circuit formed on the substrate body; the display unit is arranged on the array substrate and located at the side, away from the substrate body, of the display driving circuit; and the fingerprint recognition unit comprises a light sensing unit, the light sensing unit is arranged on the array substrate and located at the side, away from the substrate body, of the display driving circuit, and a vertical projection of the light sensing unit on a plane, where a light-emitting function layer of the display unit is located, is located between adjacent short edges of the light-emitting function layer of the display unit. Through the embodiment, influences of light rays emitted by the display unit on the fingerprint recognition unit are reduced, and fingerprint recognition precision is improved.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
Display device and mobile terminal
ActiveCN107241468AReduced risk of wrinklingImprove the accuracy of fingerprint recognitionUnauthorised/fraudulent call preventionDigital data processing detailsDisplay deviceComputer engineering
The invention discloses a display device which comprises a flexible display screen, a fingerprint identification module and a bracket. The bracket comprises a bottom wall and a side wall surrounding the periphery of the bottom wall; an accommodating space is formed by the surrounding of the bottom wall and the side wall together; the fingerprint identification module is accommodated in the accommodating space; and a top surface of the side wall, which is far away from the bottom wall, is attached to the flexible display screen. The display device disclosed by the invention is high in fingerprint identification accuracy. The invention further discloses a mobile terminal.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Touch display panel, display device and touch display panel driving method
ActiveCN108287634AImprove the accuracy of fingerprint recognitionSolid-state devicesInput/output processes for data processingDisplay deviceHuman–computer interaction
The invention discloses a touch display panel, a display device and a touch display panel driving method, and belongs to the technical field of display. The touch display panel comprises a display substrate, a control unit, a fingerprint recognition unit and an auxiliary light source; when the touch display panel executes a fingerprint recognition function, a finger presses the touch display panelto form a pressing area; the touch display panel comprises a detection area and a lightening area; the detection area is at least a part of the pressing area; the lightening area is located outside the detection area; the control unit controls the auxiliary light source in the lightening area to be lightened, and controls the auxiliary light source in the detection area to be turned off; and thelight emitted by the auxiliary light source in the lightening area is internally reflected by the finger to form reflected light which enters the fingerprint recognition unit to carry out fingerprintrecognition. Compared with the prior art, the touch display panel is capable of improving the fingerprint recognition precision.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
Display panel and display device
ActiveCN110416272AAvoid interferenceAvoid influenceSolid-state devicesPrint image acquisitionLight sensingTransmittance
The embodiment of the invention provides a display panel and a display device, which relates to the technical field of display and does not need to reevaluate the manufacturing process and does not increase the complexity of the manufacturing process under the premise of improving the fingerprint identification accuracy. The display panel comprises a display area, a light emitting element and a light sensing element, wherein the display area includes an opening area and a non-opening area, and at least part of the display area is reused as a fingerprint identification area; the light emittingelement is located in the display area and comprises an anode layer, a light emitting layer and a cathode layer, and the light emitting layer is located in the opening area; the cathode layer in the fingerprint identification area includes a first film layer part and a second film layer part, at least part of the first film layer part is located in the opening area, the second film layer part is located in the non-opening area and provided with a plurality of holes, the light transmittance of the second film layer part is less than that of the first film layer part; and the light sensing element is located in the fingerprint identification area, and the light sensing element is located at the side, which is back to the light emitting surface of the display panel, of the holes.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD
Display panel and display apparatus
ActiveCN108764098AImprove the accuracy of fingerprint recognitionReduce crosstalkPrint image acquisitionVertical projectionEngineering
The embodiment of the invention discloses a display panel and a display apparatus. The display panel includes a substrate, a plurality of light-emitting units formed on the substrate, at least one fingerprint identification module, a fingerprint identification light source and a reflection layer wherein the substrate includes an opening region and a non-opening region surrounding the opening region; the vertical projection of the each light-emitting unit on the substrate is located in the opening region; the vertical projection of the fingerprint identification module on the substrate is located in the non-opening region; the light emitted from the fingerprint identification light source is reflected by a touch main body, and then is incident on the fingerprint identification module to perform fingerprint identification; and the reflection layer is formed between the light-emitting units and the fingerprint identification module for preventing the light that the angle of inclination ofthe light is greater than the preset angle being incident on the fingerprint identification module. The display panel solves the problem that the light that the angle of inclination of the light is greater than the preset angle causes crosstalk of the fingerprint identification signal, and can achieve the effect of improving the fingerprint identification accuracy of the display panel.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD
Fingerprint recognition module and touch screen based on fingerprint recognition
InactiveCN104700079AThe overall thickness is thinImprove the accuracy of fingerprint recognitionPrint image acquisitionInput/output processes for data processingFingerprint recognitionStress concentration
A fingerprint recognition module includes a cover plate, a fingerprint sensor and a control element. The cover plate includes a first surface and a second surface opposite to the first surface. The fingerprint sensor includes a fingerprint sensing picture formed on one side of the second surface of the cover plate, wherein the fingerprint sensing picture is configured to sense fingerprints of user fingers and generate fingerprint sensing signals. The control element is electrically connected with the fingerprint sensor and is configured to process the fingerprint sensing signals. The invention further discloses a touch screen based on fingerprint recognition. The fingerprint recognition module and the touch screen based on fingerprint recognition can avoid stress concentration and strength reduction caused by tapping of the appearance of the mobile terminal, facilitate touch and watching by users, ensure the fingerprint recognition module to be thin, and are favorable for improving fingerprint recognition accuracy of the fingerprint recognition module. In addition, other parts of the fingerprint recognition module like the arrangement position of the control chip are more flexible; the fingerprint recognition picture can be formed together with the touch images so processes are saved.
Owner:NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH +3
Fingerprint identification method and apparatus
InactiveCN105354544AFree up free spaceEasy to useCharacter and pattern recognitionPattern recognitionTerminal equipment
The present disclosure relates to a fingerprint identification method and apparatus. The method comprises: when a finger slides on a fingerprint identification panel, reading a plurality of different fingerprint images sensed by the fingerprint identification panel when the finger slides to different positions; performing image stitching on the plurality of different read fingerprint images to obtain a complete fingerprint image; and performing fingerprint identification on the complete fingerprint image. The complete fingerprint image does not need to be obtained only by touching the fingerprint identification panel for once and the method and the apparatus have no special requirement for the size of the fingerprint identification panel, and thus, even if the fingerprint identification panel is narrow, the complete fingerprint image also can be obtained by finger sliding and image stitching to finish fingerprint identification, thereby releasing an available space of terminal equipment.
Owner:XIAOMI INC
Display panel
InactiveCN110222620ARealize full-screen fingerprint recognition functionReduce the difficulty of structural designSolid-state devicesSemiconductor/solid-state device manufacturingColor filmComputer science
Owner:WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
Fingerprint detection circuit, capacitance type finger sensor comprising same, and mobile terminal
ActiveCN104268530AImprove elimination effectImprove the accuracy of fingerprint recognitionElectronic switchingAutomatic exchangesCapacitanceFingerprint detection
The invention discloses a fingerprint detection circuit which comprises a plurality of detection units arranged in an array. The fingerprint detection circuit is characterized in that summation units are further included, each detection unit comprises a first detection unit and a second detection unit, the first detection units and the second detection units are connected with the summation units, and the summation units carry out summation on output signals of the second detection units and output signals of the first detection units to eliminate substrate signals in the output signals of the second detection units and obtain useful signals comprising fingerprint information. According to the fingerprint detection circuit, at least one detection unit is selected as a neutralizing unit, and the output signals of other detection units and the output signals of the detection unit which is used as the neutralizing unit are subjected to summation to eliminate the substrate signals in the output signals of the detection units and obtain the useful signals comprising the fingerprint information. Compared with the prior art, the eliminating capacity of the substrate signals is improved, and fingerprint identification precision is further improved.
Owner:SHENZHEN GOODIX TECH CO LTD
Display device
ActiveCN108153027AImprove the accuracy of fingerprint recognitionSolid-state devicesPrint image acquisitionDisplay deviceFingerprint
An embodiment of the invention provides a display device, and relates to the technical field of fingerprint identification. The display device comprises a display panel. Fingerprint detectors are integrated in the display device, and a fingerprint identification anti-interference structure is arranged on a light emergence side of the display panel; the fingerprint detectors comprise photosensitivedevices; the fingerprint identification anti-interference structure is used for stopping mutual interference of fingerprint reflection light between adjacent sub-pixels. The display device has the advantage that the fingerprint identification precision can be improved by the aid of the display device.
Owner:BOE TECH GRP CO LTD +1
Display device and fingerprint identification method
ActiveCN110534031AIncrease pixel densityImprove the accuracy of fingerprint recognitionStatic indicating devicesPrint image acquisitionDisplay deviceElectric signal
The invention discloses a display device and a fingerprint identification method, wherein each fingerprint identification unit comprises at least two photosensitive areas for receiving light of different colors, and the color of the light received by one photosensitive area corresponds to the light emitting color of a light emitting sub-pixel of one color. When fingerprint identification is carried out, the light-emitting sub-pixels with the same color as the light received by each photosensitive area can be controlled to be lightened, so that the photosensitive area with one color correspondingly receives the light reflected by a finger once and generates an electric signal once. One fingerprint identification unit is provided with N photosensitive areas, so that one fingerprint identification unit can receive light reflected by N fingers, and N electric signals can be generated. In this way, under the condition of not additionally adding a fingerprint identification unit, only one fingerprint identification unit is arranged, the effect of N times of the fingerprint identification unit can be achieved, the PPI of fingerprint identification can be improved, and then the fingerprintidentification precision is improved.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
Display panel and display device
ActiveCN108598109AReduce light lossStrong penetrating powerSolid-state devicesCharacter and pattern recognitionLight sensingTransmittance
The invention discloses a display panel and a display device. The display panel comprises a display area, wherein the display area comprises a light-emitting area and a non-light-emitting area; the non-light-emitting area comprises a light-transmitting area and a non-light-transmitting area; the display panel comprises an array layer, a display layer, a plurality of light-sensing devices, and a polarizing layer, wherein the array layer comprises a plurality of metal lines located in the non-light-emitting area; the display layer is located above the array layer and comprises a plurality of light-emitting devices, wherein the light-emitting device comprises an anode, a light-emitting layer and a cathode, and one light-emitting area comprises one light-emitting device; a plurality of the light-sensing devices are located on one side of the array layer away from the display layer; and the polarizing layer is located on one side of the display layer away from the array layer, the polarizing layer is provided with a first opening located in the non-light-emitting area, wherein at least a portion of the first opening is located in the light-transmitting area, and the light-transmitting area is an area in the non-light emitting region where the metal line is not disposed. The display panel and the display device in the invention can improve the transmittance of the fingerprint recognition light, increase the amount of light received by the light-sensing device, and improve the fingerprint recognition precision.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD
Display panel and display device
ActiveCN109343257AImprove the accuracy of fingerprint recognitionNon-linear opticsVertical projectionDisplay device
The embodiment of the invention discloses a display panel and a display device, wherein the display panel comprises a first substrate, a second substrate, a liquid crystal layer, a light isolation structure and a plurality of fingerprint identification units; wherein the first substrate and the second substrate are oppositely arranged, and the liquid crystal layer and the light isolation structureare respectively arranged between the first substrate and the second substrate; the plurality of fingerprint identification units are arranged on the first substrate, and the vertical projection of the light isolation structure on the first substrate is arranged between the vertical projections of two adjacent fingerprint identification units on the first substrate, and the fingerprint identification unitsare used for receiving the reflected light formed by the reflection of a touch body and carrying out fingerprint identification on the basis of the reflected light. The display panel can improve the fingerprint identification precision of the fingerprint identification units.
Owner:XIAMEN TIANMA MICRO ELECTRONICS
Display device and fingerprint identification method thereof
ActiveCN108182424AImprove the accuracy of fingerprint recognitionDigital data authenticationPrint image acquisitionPattern recognitionComputer graphics (images)
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
Display panel, display screen, and display device
ActiveCN110767709AImprove the accuracy of fingerprint recognitionHigh sensitivitySolid-state devicesPrint image acquisitionDisplay deviceEngineering
The invention discloses a display panel, a display screen, and a display device. An optical sensor device can be arranged in the lower side of a display structure of the panel to implement a fingerprint detection function. The display structure comprises: a plurality of first light emitting groups, wherein each light emitting group comprises a plurality of first type sub-pixels, each first type sub-pixel comprises a first transparent area and a first light emitting area, the first light emitting areas of the adjacent first type sub-pixels are not adjacent to each other, and furthermore, in theadjacent light emitting groups, the first light emitting areas of the adjacent first type sub-pixels are not adjacent to each other; and / or, a plurality of second light emitting groups, wherein eachlight emitting group comprises a second transparent area and a second light emitting area, the second light emitting area comprises a plurality of closely adjacent second type sub-pixels, the second type sub-pixels do not comprise transparent areas, and the maximum size of the pattern of the second light emitting area is less than the allowable maximum blank space when the fingerprint detection function is implemented. The panel can disperse the shadow gathering brought by the opaque light emitting areas, which improves the accuracy of fingerprint recognition to a certain extent.
Owner:YUNGU GUAN TECH CO LTD
An optical fingerprint recognition module and an electronic device
InactiveCN109791613AImprove the accuracy of fingerprint recognitionPrevent dark barsCharacter and pattern recognitionPrismOptical sensing
An optical fingerprint recognition module and an electronic device are provided. The optical fingerprint recognition module includes: an optical sensing element (302) and an optical element (301). Theoptical element (301) has a plurality of optical holes (3011) parallel to each other such that refracted light obtained after light reflected by a ginger is refracted by a prism structure of a backlight module (10) can pass through the optical holes (3011) and enter a sensing area of the optical sensing element (302). Through the optical fingerprint recognition module and the electronic device, the imaging field is enlarged, quality of fingerprint imaging is improved, and fingerprint recognition accuracy is higher.
Owner:SHENZHEN GOODIX TECH CO LTD
Liquid crystal display device
ActiveCN109656048AIncrease the screen ratioWill not affect the normal displayStatic indicating devicesPrint image acquisitionLiquid-crystal displayAmorphous silicon
The invention discloses a liquid crystal display device. The liquid crystal display device comprises a backlight module, a liquid crystal display panel and a fingerprint recognition layer, the backlight module, the liquid crystal display panel and the fingerprint recognition layer are stacked in sequence, the liquid crystal display panel is arranged between the backlight module and the fingerprintrecognition layer, the fingerprint recognition layer comprises multiple fingerprint recognition modules and a substrate, the fingerprint recognition modules are arranged at intervals, each fingerprint recognition module comprises a sensing layer, a source electrode and a drain electrode, the source electrodes and the drain electrodes are spaced, the substrate covers the source electrodes and thedrain electrodes, and the sensing layers are made of amorphous silicon materials and used for sensing light intensity and generating leakage current. According to the liquid crystal display device, the fingerprint recognition layer can be arranged in any area of the liquid crystal display device, thus fingerprint recognition is achieved in all areas of the liquid crystal display device, normal display is not influenced, arrangement of an individual recognition area is not needed, the device is suitable for fingerprint recognition of a whole-plane screen, and the screen occupying ratio of a front panel of the liquid crystal display device is also effectively increased; the sensing layers have high sensing sensitivity to light intensity, the fingerprint recognition speed is high, and the fingerprint recognition precision is also high.
Owner:KUSN INFOVISION OPTOELECTRONICS
Array substrate, manufacturing method of array substrate, display panel and display device
ActiveCN108428725AImprove the accuracy of fingerprint recognitionSolid-state devicesSemiconductor devicesVertical projectionLight sensing
The embodiment of the invention discloses an array substrate, a manufacturing method of the array substrate, a display panel and a display device. The array substrate comprises a substrate body, a plurality of light emitting units located on the substrate body and light sensing units arranged on the sides, close to the substrate body, of the light emitting units; each light emitting unit comprisesa first electrode and a light emitting layer, and the first electrodes are located between the substrate body and the light emitting layers; each first electrode comprises at least one hollowed-out area and a non-hollowed-out area surrounding the hollowed-out area; vertical projections of the light sensing units on the substrate body are at least partially overlapped with the vertical projectionsof the hollowed-out areas of the first electrodes on the substrate body. Compared with an existing array substrate, the array substrate can achieve the aim of improving the fingerprint identificationprecision of the array substrate or even the display panel.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD
Display panel
ActiveCN108985248AImprove the accuracy of fingerprint recognitionStrong penetrating powerPrint image acquisitionNon-linear opticsEngineeringArea ratio
The embodiment of the invention discloses a display panel, comprising: an array substrate and an opposite substrate arranged opposite to each other, wherein the array substrate comprises a plurality of display units; a support structure between the array substrate and the opposite substrate, the support structure comprising a plurality of support units; a fingerprint identification structure located on a side of the display unit opposite to the opposite substrate. The display panel includes a first display area and a second display area adjacent to the first display area, wherein an orthographic projection of the fingerprint identification structure on a display surface of the display panel is located in a first display area of the display panel, and the area ratio of the supporting unit in the first display area is smaller than that of the supporting unit in the second display area, Therefore, the fingerprint identification accuracy of the display panel is improved.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD
Pixel structure and display panel
InactiveCN109817665AHigh light transmittanceImprove the accuracy of fingerprint recognitionSolid-state devicesCharacter and pattern recognitionTransmittanceComputer science
The invention relates to a pixel structure and a display panel. The pixel structure includes a light emitting functional layer. The light-emitting functional layer comprises a pixel area array. The pixel area array comprises a plurality of light-emitting pixel areas and at least one light-transmitting pixel area. The light-transmitting pixel area can improve the light transmittance of the displaypanel, so that the amount of the fingerprint identification light received by the fingerprint identifier can be increased, the identification precision of the fingerprint identifier is improved, and the imaging efficiency is improved.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
Array base plate, display panel and display device
ActiveCN110750021AImprove manufacturing yieldAvoid interferencePrint image acquisitionNon-linear opticsDisplay deviceMechanical engineering
Owner:XIAMEN TIANMA MICRO ELECTRONICS
Display panel and manufacturing method thereof, and display device
ActiveCN111477635ASimple manufacturing processRealize thinner and lighterSolid-state devicesCharacter and pattern recognitionDisplay deviceHemt circuits
The embodiment of the invention discloses a display panel and a manufacturing method thereof, and a display device. According to the display panel, an array circuit layer in the display panel comprises at least three metal layers arranged on one side of a substrate; the metal layer comprises a circuit structure part; any one of the at least three metal layers is used as a light shading layer; at least one of the other metal layers is used as an auxiliary light shading layer; the light shading layer comprises a light shading part; the light shading part and the circuit structure part on the same layer are arranged in an insulating manner to form a hollow part; the light shading part is provided with at least one via hole; and the via hole is not overlapped with the auxiliary light shading layer and a first electrode layer in the thickness direction of the display panel; and the orthogonal projection of the first electrode layer and / or the auxiliary light shading layer on the substrate covers the orthogonal projection of the hollow part on the substrate. According to the technical scheme, the manufacturing process of the display panel can be simplified, the production cost can be reduced, lightening and thinning of the display panel are facilitated, and improvement of fingerprint identification precision is facilitated.
Owner:HEFEI VISIONOX TECH CO LTD
Terminal used fingerprint identification method, device and the terminal
ActiveCN107103288AImprove the accuracy of fingerprint recognitionUnauthorised/fraudulent call preventionPrint image acquisitionComputer terminalLight signal
The embodiments of the invention disclose a terminal used fingerprint identification method, a device and the terminal, wherein the terminal comprises at least one emitter. The emitter is used to transmit light signals to the fingerprint identification area of the terminal. The method comprises the following steps: obtaining the reflected light signals from the fingerprint identification area wherein the reflected light signals are light signals reflected from the fingerprint identification area after the at least one emitter transmits the light signals to the fingerprint identification area; determining the grades of the reflected light signals; according to the determined grades of the reflected light signal, determining the emission powers corresponding to the at least one emitter, wherein different grades of the reflected light signals corresponding to different emission powers; and obtaining the touch area of the fingerprint identification area touched by a user; controlling the emitter(s) that emit(s) reflected light signals to the touch area to emit light signals according to corresponding emission powers so as to execute the fingerprint identification operation. According to the invention, through the adjustment of the emission powers of the emitter(s), the fingerprint identification precision for a terminal is increased.
Owner:添津人工智能通用应用系统(天津)有限公司
Display panel, driving method thereof and display device
ActiveCN110175592AReduce the amount of noiseIntegrity guaranteedStatic indicating devicesSolid-state devicesDisplay deviceTouch function
The embodiment of the invention discloses a display panel, a driving method thereof and a display device. The display panel comprises a shading layer, a light-emitting device layer, a touch function layer and a fingerprint recognition module located on the side, away from the light-emitting device layer, of the shading layer; the shading layer comprises a plurality of imaging small holes, the light-emitting device layer comprises a plurality of light-emitting devices, and the light-emitting devices comprise a plurality of first light-emitting devices and a plurality of second light-emitting devices; the distance between the orthographic projection of the first light-emitting devices on the plane where the shading layer is located and the imaging small holes is larger than the distance between the orthographic projection of the second light-emitting devices on the plane where the shading layer is located and the imaging small holes. In the first detection stage, the first light-emittingdevices emit light, the second light-emitting devices do not emit light, and the fingerprint recognition module collects a first fingerprint image; in the second detection stage, the second light-emitting devices emit light, and the fingerprint recognition module collect a second fingerprint image; and the first fingerprint image and the second fingerprint image are synthesized to obtain a fingerprint image. According to the embodiment of the invention, the fingerprint identification precision is improved.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
Display panel, display device and preparation method of display panel
PendingCN111240065AAvoid enteringHigh strengthCharacter and pattern recognitionNon-linear opticsVertical projectionDisplay device
The embodiment of the invention discloses a display panel, a display device and a preparation method of the display panel. The display panel comprises a first substrate base plate; a plurality of fingerprint identification units located at one side of the first substrate; a plurality of collimation hole units which are located at sides, deviating from the first substrate, of the fingerprint identification units; each collimation hole unit comprises at least one layer of shading part; each shading part is provided with a light through hole; the vertical projections of the light through holes ofthe shading parts on the plane where the first substrate is located are at least partially overlapped; a collimation hole is formed in the area where each light through hole is located; the verticalprojections of the collimation holes on the plane where the first substrate is located are at least partially overlapped with the vertical projections of the fingerprint identification units on the plane where the first substrate is located; and a reflection unit is arranged on the side walls of the collimation holes. According to the display panel provided by the embodiment of the invention, theeffect of improving the fingerprint identification precision is achieved.
Owner:XIAMEN TIANMA MICRO ELECTRONICS
Optical in-display fingerprint identification device and system, LCD
ActiveCN111095288AImprove the accuracy of fingerprint recognitionPrint image acquisitionNon-linear opticsLiquid-crystal displayIdentification device
The invention provides an optical in-display fingerprint identification device, an optical in-display fingerprint identification system and a liquid crystal display screen. The optical in-display fingerprint identification device comprises a detection light source arranged below a backlight module, a light path guide structure and an optical fingerprint sensor, the detection light source is used for emitting detection light, and the detection light irradiates a finger through the liquid crystal display screen.The light path guide structure is used for guiding fingerprint detection light whichis reflected by a finger, carries fingerprint information and penetrates through the liquid crystal display screen to the optical fingerprint sensor; the optical fingerprint sensor is used for acquiring fingerprint information of a finger according to the fingerprint detection light; at least one of the detection light and the fingerprint detection light penetrates through the polarization layer;the polarization layer is used for filtering S waves in the detection light and / or the fingerprint detection light, and the polarization layer is located above the under-screen optical fingerprint recognition device; and the polarization direction of the polarization layer is the same as that of the first reflective polarizing film layer. The accuracy of fingerprint identification is high.
Owner:SHENZHEN GOODIX TECH CO LTD
Display panel and display device
ActiveCN112379794AAvoid affecting the display effectImprove the accuracy of fingerprint recognitionSolid-state devicesPrint image acquisitionDisplay deviceEngineering
The embodiment of the invention discloses a display panel and a display device. The display panel comprises a substrate base plate; an array layer positioned on one side of the substrate base plate; adisplay layer positioned on one side, deviating from the substrate base plate, of the array layer; a color filter layer located on the side, deviating from the array layer, of the display layer, wherein the color filter layer comprises a first shading layer and a color resistor, and the first shading layer comprises a plurality of first imaging small holes; a touch layer positioned between the color filter layer and the display layer; a second shading layer which is located on the side, deviating from the color filter layer, of the display layer and comprises a plurality of second imaging small holes corresponding to the first imaging small holes; and a light sensation sensor layer used for detecting an image formed by the second imaging small holes; part of light emitted by the light-emitting element serving as the small hole imaging light source is reflected by the touch layer adjacent to the first imaging small holes and then enters the area outside the second imaging small hole ofthe second shading layer. According to the technical scheme of the embodiment of the invention, the fingerprint recognition precision based on the small hole imaging principle can be improved.
Owner:XIAMEN TIANMA MICRO ELECTRONICS
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com