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公开(公告)号：US20240298544A1
公开(公告)日：2024-09-05
申请号：US18043397
申请日：2022-03-31
CPC classification number: H10N30/708 , H10N30/20 , H10N30/8554 , H10N30/875 , H10N30/883 , G06F3/016
Abstract: Disclosed are a piezoelectric sensor and a driving method therefor, and a haptic feedback apparatus. The piezoelectric sensor includes: a substrate, and a first electrode laver, a piezoelectric film laver and a second electrode laver that are located on the substrate, where the first electrode laver is grounded, and the second electrode laver is coupled to a driving signal end. The driving method includes: loading a grounding signal to the first electrode laver, and loading a driving signal on which a direct current voltage and an alternating current voltage are superimposed to the second electrode layer.
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公开(公告)号：US20240389464A1
公开(公告)日：2024-11-21
申请号：US18033622
申请日：2022-05-26
Abstract: A vibration device, a touch display panel and an electronic product are provided. The vibration device includes a base substrate, a first transparent conductive anti-diffusion layer and a piezoelectric material layer. The first transparent conductive anti-diffusion layer is located on the base substrate; the piezoelectric material layer is located at a side of the first transparent conductive anti-diffusion layer away from the base substrate, and the first transparent conductive anti-diffusion layer is configured to prevent oxygen from entering the piezoelectric material layer.
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公开(公告)号：US20240260474A1
公开(公告)日：2024-08-01
申请号：US18006458
申请日：2022-01-29
Applicant: BOE Technology Group Co., Ltd.
Inventor： Dexing QI , Yuju CHEN , Hui HUA , Yingzi WANG
Abstract: Embodiments in the present disclosure provide a vibration panel and a drive method therefor, and a haptic feedback device. The vibration panel includes: a substrate; a piezoelectric sensor located on one side of the substrate, where the piezoelectric sensor driven by an excitation signal is configured to vibrate, and to drive the substrate to vibrate; and a regulation structure, where the regulation structure is configured to regulate a characteristic frequency of the substrate, so as to make a resonant frequency of the substrate satisfy a preset range.
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公开(公告)号：US20220379345A1
公开(公告)日：2022-12-01
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：US20230185378A1
公开(公告)日：2023-06-15
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. The target area corresponding to the target virtual key is divided into multiple regions, and different drive signals are provided to drive the piezoelectric element to vibrate when the fingers of users touch different regions, such that the users may feel the boundary of the virtual key when moving their fingers on the surface of the touch display panel, and the virtual key has more realistic haptic feedback.
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Patent Agency Ranking
公开(公告)号：US20230152893A1
公开(公告)日：2023-05-18
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 , G06F3/0416 , B06B1/0215 , B06B1/0622 , G06F3/0412
Abstract: The present disclosure provides a haptic reproduction system and a driving method, and relates to the technical field of haptic reproduction. The haptic reproduction system is able to realize haptic reproduction, and 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 so as to change the friction on a touch surface of the touch display device.
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公开(公告)号：US20220238782A1
公开(公告)日：2022-07-28
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：US20240349612A1
公开(公告)日：2024-10-17
申请号：US18292277
申请日：2022-07-01
CPC classification number: H10N30/302 , G06F3/016 , H10N30/85 , H10N30/872
Abstract: Embodiments of the present disclosure provide a piezoelectric sensor and a tactile feedback device. The piezoelectric sensor includes: a base substrate, and a first electrode layer, a first blocking layer, a piezoelectric material layer and a second electrode layer that are successively stacked on the base substrate, wherein the first electrode layer is close to the base substrate, and the first blocking layer is used for blocking the diffusion of ions of the piezoelectric material layer to the first electrode layer.
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公开(公告)号：US20240329739A1
公开(公告)日：2024-10-03
申请号：US18034549
申请日：2022-03-25
Applicant: BOE Technology Group Co., Ltd.
Inventor： Dexing QI , Yuju CHEN , Hui HUA , Yingzi WANG
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.
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公开(公告)号：US20240244768A1
公开(公告)日：2024-07-18
申请号：US18579942
申请日：2022-07-01
Inventor： Xiaotong LIU , Yuju CHEN , Yongchun TAO , Hui HUA , Zhiming YANG , Jijing HUANG , Hengfei ZHANG , Yingzi WANG
CPC classification number: H05K5/0018 , G06F3/016 , H05K5/02 , G06F3/044 , G06F2203/04107
Abstract: A display device is disclosed. The display device includes a module outer frame, including a display opening window, where an accommodation space is formed inside the module outer frame; a display module, fixed in the accommodating space, where a light emitting side of the display module faces the display opening window; a touch module, fixed between the display module and the display opening window, where the touch module includes a haptic sensor configured to generate a standing wave on a surface of the touch module during operation; a first isolation structure, arranged between the touch module and the module outer frame, where the first isolation structure is configured to isolate the touch module from the module outer frame; and a second isolation structure, arranged between the display module and the touch module, where the second isolation structure is configured to isolate the display module from the touch module.
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