Fingerprint identification and detection circuit, method and display device

    公开(公告)号:US11232278B2

    公开(公告)日:2022-01-25

    申请号:US16975638

    申请日:2019-10-16

    Abstract: A fingerprint identification and detection circuit, a fingerprint identification and detection method and a display device are provided. The fingerprint identification and detection circuit includes a storage capacitor, a capacitor control circuit and a photoelectric conversion element; the photoelectric conversion element is configured to, when in a photoelectric conversion state, convert a received optical signal into a corresponding electrical signal; the capacitor control circuit is provided between the storage capacitor and the photoelectric conversion element, and is configured to perform control to store at least part of the electrical signal to the storage capacitor under control of a capacitor control signal.

    Fingerprint identification assembly, display substrate, display panel and fingerprint identification method

    公开(公告)号:US11200397B2

    公开(公告)日:2021-12-14

    申请号:US16911382

    申请日:2020-06-24

    Abstract: A fingerprint identification assembly is disclosed. The fingerprint identification assembly includes first point light sources for emitting first signal light; second point light sources for emitting second signal light after the first point light source emits the first signal light; light sensitive units configured to sequentially receive the first signal light and the second signal light reflected by a finger; and an optical filter layer provided on a light entry side of the light sensitive unit. The optical filter layer includes first filter units, the first filter unit corresponds to a non-imaging area that is formed on the light sensitive units after the first point light source is lit, for preventing the first signal light reflected by the finger from irradiating the non-imaging area of the light sensitive units, and allowing the second signal light reflected by the finger to irradiate the non-imaging area of the light sensitive units.

    Texture recognition device and operation method of texture recognition device

    公开(公告)号:US11232279B2

    公开(公告)日:2022-01-25

    申请号:US16648628

    申请日:2019-09-30

    Abstract: 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.

    Drive method for texture recognition device and texture recognition device

    公开(公告)号:US11188772B2

    公开(公告)日:2021-11-30

    申请号:US16765936

    申请日:2019-11-28

    Abstract: 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.

    AUDIO DEVICE AND WORKING METHOD THEREOF, VR DEVICE

    公开(公告)号:US20250071501A1

    公开(公告)日:2025-02-27

    申请号:US18771206

    申请日:2024-07-12

    Abstract: An audio device and working method thereof, and a VR device are provided, and pertain to the field of space audio technologies. The audio device includes: a sound chamber; at least one speaker located within the sound chamber; an acquisition unit, configured to respectively obtain audio data and a target ear spectral curve HRTF at a position of a virtual sound source corresponding to the audio data; a computing unit, configured to process the audio data based on the target HRTF, generate a target sound signal, and output the target sound signal to the speaker. The technical solutions of the present disclosure can simulate three-dimensional sound production in space and create a sense of spatial immersion.

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