ULTRASONIC PATTERN RECOGNITION ASSEMBLIES, PREPARATION METHODS THEREOF AND DISPLAY DEVICES

    公开(公告)号:US20220326793A1

    公开(公告)日:2022-10-13

    申请号:US17764848

    申请日:2021-04-14

    IPC分类号: G06F3/043 G06V40/13 G06F3/041

    摘要: An ultrasonic pattern recognition assembly comprising: a substrate; a receiving member comprising at least one receiving electrode disposed on the substrate; a piezoelectric layer disposed on the substrate and covering the receiving member; a seed member comprising at least one seed block disposed on at least a portion of the piezoelectric layer; an insulating member disposed on the seed member and having at least one exposed portion, the at least one exposed portion exposing a portion of a surface of the seed member; and a transmitting member comprising at least one transmitting electrode disposed on the seed member, the at least one transmitting electrode extending from a surface of the seed member exposed by the exposed portion in a direction away from the substrate. A display device and a method of fabricating an ultrasonic pattern recognition assembly are also disclosed.

    Micro-Fluidic Substrate, Micro-Fluidic Structure and Driving Method Thereof

    公开(公告)号:US20220241778A1

    公开(公告)日:2022-08-04

    申请号:US17726119

    申请日:2022-04-21

    IPC分类号: B01L3/00

    摘要: The present disclosure provides a micro-fluidic substrate, a micro-fluidic structure and a driving method thereof. The micro-fluidic substrate of the preset disclosure includes a substrate, and a plurality of driving electrodes on the substrate and configured to drive a droplet to move, the plurality of driving electrodes being in a same layer with a gap space between adjacent driving electrodes. The micro-fluidic substrate further includes: at least one auxiliary electrode on the substrate and configured to drive the droplet to move, an orthographic projection of the auxiliary electrode on the substrate at least partially overlapping with an orthographic projection of the gap space on the substrate, and the auxiliary electrode and the driving electrodes being in different layers.

    TOUCH PANEL AND DRIVING METHOD THEREOF, AND TOUCH DEVICE

    公开(公告)号:US20210373734A1

    公开(公告)日:2021-12-02

    申请号:US16334221

    申请日:2018-08-16

    IPC分类号: G06F3/041 G06F3/044

    摘要: A touch panel and a driving method thereof, and a touch device are provided. The touch panel includes a first base substrate, a second base substrate, a first electrode, a piezoelectric layer and a second electrode. The second base substrate is opposite to the first base substrate. The first electrode is on a side of the first base substrate facing away from the second base substrate, and is configured to provide a reference. The piezoelectric layer is between the first electrode and the first base substrate. The second electrode is between the first base substrate and the second base substrate. The piezoelectric layer is configured to generate first charges on a side thereof close to the second electrode upon being pressed, and the second electrode is configured to couple the first charges at a pressed position and output a touch signal.

    PATTERN IDENTIFICATION DEVICE AND DISPLAY APPARATUS

    公开(公告)号:US20210365704A1

    公开(公告)日:2021-11-25

    申请号:US16343768

    申请日:2018-08-13

    IPC分类号: G06K9/20 G06K9/00 H01L27/32

    摘要: A device for identifying a pattern over a first surface includes a photosensitive layer, and a light-guiding layer disposed between the photosensitive layer and the first surface. The photosensitive layer includes a plurality of photosensitive elements, each configured to convert incident light into an electrical signal. The light-guiding layer includes a plurality of light-guiding units, each positionally corresponding to one of the plurality of photosensitive elements. Each light-guiding unit includes a plurality of light-transmitting portions, each configured to guide a light beam reflected from a feature of the pattern positionally corresponding thereto to transmit therethrough and reach one of the plurality of photosensitive elements corresponding to the each of the plurality of light-guiding units. The device can be used for identification of fingerprint, as well as other biometric or non-biometric features, and has a reduced thickness and an improved accuracy for pattern identification.

    TEXTURE RECOGNITION DEVICE AND OPERATION METHOD OF TEXTURE RECOGNITION DEVICE

    公开(公告)号:US20210248349A1

    公开(公告)日:2021-08-12

    申请号:US16648628

    申请日:2019-09-30

    IPC分类号: G06K9/00 G06K9/20

    摘要: A texture recognition device and an operation method of a texture recognition device are provided. The texture recognition device includes a light source array and an image sensor array. The light source array includes a plurality of light sources; the image sensor array is at a side of the light source array and includes a plurality of image sensors, and the plurality of image sensors are configured to receive light emitted from the plurality of light sources and reflected to the image sensors by a texture for a texture image collection; each of the image sensors includes a plurality of signal switches, and a signal of each of the image sensors is read through the plurality of signal switches for forming one image pixel of the texture image.

    TOUCH PANEL, DRIVING METHOD THEREOF, AND DISPLAY DEVICE

    公开(公告)号:US20210223882A1

    公开(公告)日:2021-07-22

    申请号:US16650551

    申请日:2019-02-28

    摘要: A touch panel, a driving method thereof, and a display device are disclosed. The touch panel includes a touch detection structure and a fingerprint identification structure; the touch panel includes a first electrode, a circuit structure, and a piezoelectric layer which are stacked. The first electrode includes a plurality of first sub-electrode strips arranged in a first direction and extending in a second direction, and the circuit structure includes a plurality of circuit sub-structures arranged in an array in the first direction and the second direction, each of the circuit sub-structures includes a detection electrode; in the first direction, an orthographic projection of each of the first sub-electrode strips on a main surface of the piezoelectric layer covers orthographic projections of detection electrodes of at least two circuit sub-structures on the main surface of the piezoelectric layer.

    FINGERPRINT IDENTIFICATION STRUCTURE AND DISPLAY DEVICE

    公开(公告)号:US20210216735A1

    公开(公告)日:2021-07-15

    申请号:US16651000

    申请日:2019-10-17

    摘要: At least one embodiment of the present disclosure provides a fingerprint identification structure and a display device. At least one embodiment of the present disclosure provides a fingerprint identification structure, including: an ultrasonic emission component including a plurality of ultrasonic emission units arranged in a two-dimensional array in directions parallel to a plane; and an ultrasonic detection component including a plurality of ultrasonic detection units arranged in a two-dimensional array in the directions parallel to the plane. The ultrasonic emission component and the ultrasonic detection component are two independent structures, and an orthographic projection of at least one ultrasonic detection unit on the plane is included between orthographic projections of two adjacent ones of the plurality of ultrasonic emission units on the plane.

    ARRAY SUBSTRATE AND MICRO TOTAL ANALYSIS DEVICE

    公开(公告)号:US20210215596A1

    公开(公告)日:2021-07-15

    申请号:US16766774

    申请日:2019-12-11

    IPC分类号: G01N21/25 H01L27/12 G01N21/27

    摘要: The present disclosure discloses an array substrate and a micro total analysis device. The array substrate includes: a substrate, a plurality of pixel regions arranged on the substrate and defined by the intersection of a plurality of data lines and a plurality of gate lines, and a plurality of drive transistors arranged in the plurality of pixel regions respectively; each drive transistor includes first active layer pattern, a first extension direction of the first active layer pattern forms a first preset angle with a gate line, and in a first preset angle direction, the first active layer pattern spans a pixel region in an inclined manner; and source and drain electrodes of the each drive transistor are coupled with the active layer pattern in the first preset angle direction.

    DRIVE METHOD FOR TEXTURE RECOGNITION DEVICE AND TEXTURE RECOGNITION DEVICE

    公开(公告)号:US20210201063A1

    公开(公告)日:2021-07-01

    申请号:US16765936

    申请日:2019-11-28

    IPC分类号: G06K9/20 G06K9/00

    摘要: A drive method for a texture recognition device and a texture recognition device. The texture recognition device includes a light source array and an image sensor array. The image sensor array includes a plurality of image sensors, the plurality of image sensors are configured to receive light emitted from the plurality of sub-light sources and then reflected by a texture to the plurality of image sensors for a texture collection; the drive method includes: at a first moment, the light source array operating to provide a first photosensitive light source, and at the first moment or a second moment different from the first moment, the light source array operating to provide a second photosensitive light source. A first imaging range of the first photosensitive light source on the image sensor array partially overlaps a second imaging range of the second photosensitive light source on the image sensor array.