115results about How to "Improve the accuracy of fingerprint recognition" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The embodiment of the invention provides an array substrate, a manufacturing method of the array substrate and a display device, relates to the technical field of display. The number of sensor drivingcircuits per unit area is increased. The array substrate comprises a sensor driving circuit, and the sensor driving circuit comprises a first transistor which comprises a first active layer, a firstgrid electrode connected with a first control signal line, a first source electrode and a first drain electrode; a second transistor which comprises a second active layer, a second grid electrode connected with the first drain electrode, a second source electrode and a second drain electrode; a third transistor which comprises a third active layer, and a third grid electrode, a third source electrode and a third drain electrode which are connected with the second control signal line; wherein the first control signal line, the second control signal line, the first gate and the third gate are positioned on the first film layer; the first source electrode, the second source electrode, the second drain electrode, the third source electrode and the third drain electrode are located on the second film layer, the first drain electrode and the second grid electrode are located on the third film layer, the first film layer, the second film layer and the third film layer are located on differentlayers, and the first drain electrode is connected with the first active layer through a via hole.