TACTILE FEEDBACK APPARATUS AND DRIVING METHOD THEREFOR, AND ELECTRONIC DEVICE

    公开(公告)号:US20240370090A1

    公开(公告)日:2024-11-07

    申请号:US18686940

    申请日:2021-10-18

    Abstract: A tactile feedback apparatus includes a tactile feedback substrate and a controller. The tactile feedback substrate includes a base substrate, a first electrode layer, a piezoelectric layer, and a second electrode layer that are laminated sequentially. A plurality of electrode pairs arranged sequentially along a row direction are formed in a portion where the first electrode layer and the second electrode layer overlap with each other. The controller is configured to be capable of determining one driving mode from a plurality of driving modes as a target driving mode. In any of the driving modes, the electrode pairs are combined to form a plurality of driving units adjoined in sequence along the row direction. The number of the electrode pairs in each driving unit is different in different driving modes. The controller is further configured to drive one or more of the driving units of the target driving mode.

    DISPLAY SUBSTRATE AND DISPLAY APPARATUS
    42.
    发明公开

    公开(公告)号:US20240341161A1

    公开(公告)日:2024-10-10

    申请号:US18681496

    申请日:2021-11-22

    CPC classification number: H10K59/8792 H10K39/34 H10K59/353

    Abstract: Disclosed are a display substrate and a display apparatus. The display substrate includes the photosensitive devices, a noise reduction layer, the light-emitting devices and a black matrix are sequentially arranged, where the black matrix does not shield the light-emitting devices, the black matrix includes the first openings, which are located in at least some gaps of the light-emitting devices and correspond to the photosensitive devices, and an orthographic projection of each first opening is located in an orthographic projection of each photosensitive device; an orthographic projection of the noise reduction layer at least overlaps with orthographic projections of the photosensitive devices, and the noise reduction layer is provided with the second openings, orthographic projections of which are located in the orthographic projections of the photosensitive devices; and each photosensitive device, each first opening and each second opening satisfy the following relational expressions: d=X*D1, D2=K*D1, and d=D1−(D1+D2)*h1/(h1+h2+h).

    HAPTIC FEEDBACK SUBSTRATE AND HAPTIC FEEDBACK APPARATUS

    公开(公告)号:US20240329739A1

    公开(公告)日:2024-10-03

    申请号:US18034549

    申请日:2022-03-25

    CPC classification number: G06F3/016 G06F3/04164 G06F3/0445 G06F3/0446

    Abstract: Provides are a haptic feedback substrate and apparatus. The haptic feedback substrate includes: a base substrate; a first electrode layer, the first electrode layer is electrically connected to a ground voltage input end; a piezoelectric film layer at one side of the first electrode layer facing away from the base substrate; a second electrode layer at one side of the piezoelectric film layer facing away from the base substrate, the second electrode layer is divided into vibration zones, each vibration zone includes at least one second electrode, second electrodes in each vibration zone are electrically connected to the same drive voltage input end, second electrodes in different vibration zones are electrically connected to different drive voltage input ends; the first and second electrode layers form an alternating electric field, the piezoelectric film layer vibrates under the action of the alternating electric field and drive the base substrate to resonate.

    RIDGE IDENTIFICATION MODULE, MANUFACTURING METHOD THEREOF AND DISPLAY APPARATUS

    公开(公告)号:US20240312245A1

    公开(公告)日:2024-09-19

    申请号:US18028304

    申请日:2022-03-22

    CPC classification number: G06V40/1376 G06V40/1318

    Abstract: This disclosure relates a ridge identification module, a manufacturing method thereof and a display apparatus. The ridge identification module includes a ridge identification substrate, the ridge identification substrate includes a base substrate and photosensitive devices arranged on a side of the base substrate in an array mode; a diaphragm layer on a side where the ridge identification substrate has the plurality of photosensitive devices, the diaphragm layer includes light transmittance holes in an array mode, orthographic projections of the light transmittance holes are in orthographic projections of the photosensitive devices on the base substrate, a ratio of depths of the light transmittance holes to maximum apertures of the light transmittance holes is ≥⅙ and ≤2; micro-lenses on a side of the diaphragm layer away from the ridge identification substrate, orthographic projections of the micro-lenses cover the orthographic projections of the light transmittance holes on the base substrate.

    ULTRASONIC TRANSDUCER, FABRICATION METHOD THEREOF AND ELECTRONIC DEVICE

    公开(公告)号:US20240267680A1

    公开(公告)日:2024-08-08

    申请号:US18021544

    申请日:2022-05-27

    CPC classification number: H04R7/10 H04R31/003

    Abstract: Provides are an ultrasonic transducer, a fabrication method thereof and an electronic device. The ultrasonic transducer includes: an array substrate having a groove, a bottom electrode and an insulation layer, wherein an orthographic projection of the groove on the array substrate is within an orthographic projection of the bottom electrode on the array substrate, and the insulation layer covers the bottom electrode; and an opposite substrate, the opposite substrate and the array substrate are oppositely arranged and are attached to each other, the opposite substrate and the array substrate form a cavity in the groove, the opposite substrate has a top electrode and a vibrating diaphragm layer which are arranged in stack, and an orthographic projection of the top electrode on the array substrate is within the orthographic projection of the bottom electrode on the array substrate.

    TEXTURE RECOGNITION ASSEMBLY, MANUFACTURING METHOD THEREOF, AND DISPLAY DEVICE

    公开(公告)号:US20230255088A1

    公开(公告)日:2023-08-10

    申请号:US17621061

    申请日:2020-11-30

    CPC classification number: H10K59/80 H10K59/90 H10K39/32 H10K71/50 H10K2102/311

    Abstract: A texture recognition assembly (100) includes: a substrate (1); an optical sensing structure (2) on the substrate; and a light path structure (3) on a side of the optical sensing structure distal to the substrate and including an inclined light transmitting channel (Q) such that light incident on the light path structure can only pass through the light transmitting channel. The light path structure includes at least two light shielding layers (31, 31a, 31b, 31c) and a light transmitting layer (32, 32a, 32b) located between any adjacent two of the at least two light shielding layers, the light shielding layer (31a) closest to the optical sensing structure includes a first light transmitting hole (311a) the light shielding layer (31b) farthest away from the optical sensing structure includes a second light transmitting hole (322b), the first light transmitting hole and the second light transmitting hole define the light transmitting channel.

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