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公开(公告)号：US11789537B2
公开(公告)日：2023-10-17
申请号：US17615395
申请日：2021-02-22
Inventor： Yuju Chen , Hui Hua , Xiaotong Liu , Yongchun Tao , Jijing Huang
IPC: G06F3/01 , G06F3/04886
CPC classification number: G06F3/016 , G06F3/04886
Abstract: The application provides a haptic feedback method and apparatus for virtual keys, and an electronic device, and relates to the field of piezoelectric techniques. A touch display panel is controlled to display at least one virtual key, a touch position detected by the touch display panel is acquired, a target waveform parameter is determined according to a positional relationship between the touch position and each region in a target area corresponding to a target virtual key, and a target drive signal is generated according to the target waveform parameter and is sent to a piezoelectric element.
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公开(公告)号：US12204690B2
公开(公告)日：2025-01-21
申请号：US18017171
申请日：2022-02-22
Applicant: BOE Technology Group Co., Ltd.
Inventor： Dexing Qi , Yuju Chen , Hui Hua , Yingzi Wang
Abstract: Embodiments of the present disclosure provide a haptics panel and a driving method thereof, and a haptics apparatus. The driving method includes: receiving a touch signal, and judging a touch position of a user on the haptics panel according to the touch signal; judging a characteristic frequency area to which the touch position belongs; determining characteristic mode displacement field distribution of the base substrate according to the characteristic frequency area to which the touch position belongs, wherein the characteristic mode displacement field distribution contains vibration displacement phase information at each position of the base substrate; dividing a plurality of piezoelectric devices arranged in an array contained in the haptics panel into at least one vibration area according to the vibration displacement phase information of the characteristic mode displacement field distribution; and loading voltage signals on at least part of the piezoelectric devices in the vibration area.
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公开(公告)号：US12162036B2
公开(公告)日：2024-12-10
申请号：US17772263
申请日：2021-05-20
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yongchun Tao , Shuai Hou , Jingwen Guo , Hui Hua , Xiaotong Liu , Yichi Zhang
Abstract: The present disclosure provides an acoustic transducer unit and a manufacturing method thereof, and an acoustic transducer, the acoustic transducer unit includes: a base substrate; a first electrode on the base substrate; a support pattern on a side of the first electrode away from the base substrate, which is enclosed into an accommodation groove, at least one release groove and at least one connection groove, an orthographic projection of the release groove on the base substrate is spaced apart from that of the accommodation groove on the base substrate, the connection groove is between the accommodation groove and the release groove to communicate them; a diaphragm pattern on the side of the first electrode away from the base substrate and capable of vibrating in the accommodation groove; a filling pattern in the release groove; a second electrode on a side of the diaphragm pattern away from the base substrate.
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公开(公告)号：US12067165B2
公开(公告)日：2024-08-20
申请号：US17620590
申请日：2021-02-26
Inventor： Yongchun Tao , Yuju Chen , Hui Hua , Xiaotong Liu , Xiaofeng Yin
CPC classification number: G06F3/016 , B06B1/0215 , B06B1/0622 , G06F3/0416 , G06F3/0412
Abstract: A haptic reproduction system comprises: a touch display device, an upper computer and a waveform generator. The touch display device comprises a piezoelectric unit, a touch display panel and a touch driving unit. The piezoelectric unit is disposed on the touch display panel. The touch driving unit is electrically connected to the touch display panel and the upper computer, and is configured to acquire touch information and transmit the touch information to the upper computer. The upper computer is electrically connected to the waveform generator, and is configured to send a first waveform generation instruction to the waveform generator according to the touch information. The waveform generator is configured to generate a first waveform signal according to the first waveform generation instruction. The piezoelectric unit is electrically connected to the waveform generator, and is configured to resonate with the touch display panel under the drive of the first waveform signal.
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公开(公告)号：US12030084B2
公开(公告)日：2024-07-09
申请号：US17427358
申请日：2020-10-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Hui Hua , Yanzhao Li
IPC: B06B1/02
CPC classification number: B06B1/0292
Abstract: The present disclosure provides an ultrasonic transducer unit and a manufacturing method thereof. The ultrasonic transducer unit includes a substrate, a first electrode arranged on the substrate, an insulating layer arranged on the first electrode, a vibrating film arranged on the insulating layer, a closed cavity being between the vibrating film and the insulating layer, and a second electrode arranged on the vibrating film. The vibrating film is made of a photoresist. The ultrasonic transducer unit disclosed by the present disclosure adopts the photoresist as a material of the insulating layer and/or the vibrating film, so that the ultrasonic transducer unit with better performance can be obtained.
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Patent Agency Ranking
公开(公告)号：US11847263B2
公开(公告)日：2023-12-19
申请号：US17620538
申请日：2021-02-26
Inventor： Hui Hua , Yuju Chen , Xiaofeng Yin
CPC classification number: G06F3/016 , B06B1/0622
Abstract: The present disclosure provides a haptic feedback base plate, a haptic feedback apparatus and a haptic feedback method. The haptic feedback base plate comprises: a substrate and a deformation unit disposed on one side of the substrate. The deformation unit comprises a first electrode, a piezoelectric material layer and a second electrode that are arranged in a stacked manner, the first electrode is arranged close to the substrate, the first electrode and the second electrode are configured to form an alternating electric field, and the piezoelectric material layer vibrates under the effect of the alternating electric field and drives the substrate to resonate, wherein a difference between a frequency of the alternating electric field and an inherent frequency of the substrate is less than or equal to a preset threshold.
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公开(公告)号：US11522121B2
公开(公告)日：2022-12-06
申请号：US17485227
申请日：2021-09-24
Applicant: BOE Technology Group Co., Ltd.
Inventor： Hui Hua , Yuju Chen , Xiaofeng Yin
IPC: H01L41/047 , G06F3/01 , H02N2/00
Abstract: A tactile reproduction device, a method for driving the same, and a tactile reproduction apparatus. Tactile reproduction device may simulate textures to implement tactile reproduction. tactile reproduction device includes a plurality of piezoelectric units, includes: first electrode, piezoelectric section, and second electrode which are laminated, wherein the second electrode includes: first comb electrode and second comb electrode; the first comb electrode includes: a plurality of first comb-teeth electrodes and a first comb-shank electrode connecting the plurality of first comb-teeth electrodes; the second comb electrode includes: a plurality of second comb-teeth electrodes and a second comb-shank electrode connecting the plurality of second comb-teeth electrodes; the plurality of first comb-teeth electrodes and the plurality of second comb-teeth electrodes are mutually intersected; the first electrode includes a plurality of electrode units which are not connected to each other. The present disclosure is applicable to the production of tactile reproduction devices.
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公开(公告)号：US20240431209A1
公开(公告)日：2024-12-26
申请号：US18687413
申请日：2022-10-21
Inventor： Hui Hua , Yuju Chen , Yingzi Wang
Abstract: A tactile-feedback base board and a tactile-feedback device are provided by the embodiments of the present disclosure. The tactile-feedback base board includes a substrate and a piezoelectric element disposed at one side of the substrate, the piezoelectric element includes a first electrode, a piezoelectric material layer and a second electrode arranged in layer configuration, the first electrode is close to the substrate, the first electrode and the second electrode are for forming an alternating electric field, and the piezoelectric material layer is for, under an effect of the alternating electric field, vibrating, and driving the substrate to resonate; and an insulating and planarizing layer is disposed between the first electrode and the piezoelectric material layer and/or between the second electrode and the piezoelectric material layer.
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公开(公告)号：US20240215453A1
公开(公告)日：2024-06-27
申请号：US17778172
申请日：2021-06-23
Inventor： Hui Hua , Yuju Chen , Xiaofeng Yin
IPC: H10N30/853 , B06B1/06 , C01G25/00 , G06F3/01
CPC classification number: H10N30/8554 , B06B1/0622 , C01G25/006 , G06F3/016 , C01P2002/34 , C01P2002/52 , C01P2002/76 , C01P2002/77 , C01P2006/40
Abstract: A piezoelectric material and a piezoelectric device. The piezoelectric material includes: a matrix, wherein a crystal structure of the matrix is an ABO3-type perovskite structure, the perovskite structure includes a rhombohedral structure and a tetragonal structure that coexist, and the matrix is near a morphotropic phase boundary; and a doping element, wherein the doping element is for replacing an A-site element or a B-site element in the perovskite structure, or filling a space in the perovskite structure, and the doping element is for increasing a difference between a lattice constant of the rhombohedral structure and a lattice constant of the tetragonal structure.
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公开(公告)号：US20240207896A1
公开(公告)日：2024-06-27
申请号：US17905816
申请日：2021-12-27
Inventor： Yuju Chen , Hui Hua , Xiaotong Liu
CPC classification number: B06B1/0692 , G06F3/016 , H10N39/00
Abstract: A haptic substrate is provided. The haptic substrate includes a first electrode layer; an electroactive layer on the first electrode layer; a second electrode layer on a side of the electroactive layer away from the first electrode layer; a first pad layer electrically connected to the first electrode layer; and a second pad layer on a side of the second electrode layer away from the electroactive layer, the second pad layer being connected to the second electrode layer. In a region where an orthographic projection of the second electrode layer on a base substrate overlaps with the orthographic projection of the second pad layer on the base substrate, at least 30% of the second pad layer is in direct contact with the second electrode layer.
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