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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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公开(公告)号：US20240185693A1
公开(公告)日：2024-06-06
申请号：US17795762
申请日：2021-09-26
Inventor： Yongchun Tao , Yuju Chen , Xiaofeng Yin , Yingzi Wang
IPC: G08B6/00
CPC classification number: G08B6/00
Abstract: The present disclosure provides a haptic rendering device, a method, a display device and a controller. The haptic rendering device includes: a substrate; a first driver arranged on the substrate and configured to vibrate and drive the substrate to vibrate after receiving a first driving signal; a vibration sensor arranged on the substrate and configured to generate a first detection voltage signal according to an amplitude or a frequency at which the first driver vibrates together with the substrate in a case where the substrate vibrates; and a controller configured to output the first driving signal to the first driver, receive the first detection voltage signal, and adjust the first driving signal according to the first detection voltage signal.
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24.发明公开公开(公告)号：US20240099145A1
公开(公告)日：2024-03-21
申请号：US18274229
申请日：2022-07-01
Inventor： Hui Hua , Yuju Chen , Xiaotong Liu , Yongchun Tao
IPC: H10N30/87 , B06B1/06 , G08B6/00 , H10N30/06 , H10N30/082
CPC classification number: H10N30/875 , B06B1/0622 , B06B1/0648 , G08B6/00 , H10N30/06 , H10N30/082
Abstract: The present disclosure provides a piezoelectric device and a preparation method therefor, a panel, and a tactile reproduction apparatus. The piezoelectric device includes: a substrate; a bottom electrode layer disposed on the substrate; a piezoelectric functional layer disposed on the bottom electrode layer; a top electrode layer disposed on the piezoelectric functional layer; an insulation layer, arranged to cover an edge portion of the top electrode layer, the piezoelectric functional layer exposed from the top electrode layer and the bottom electrode layer exposed from the piezoelectric functional layer, an edge of the insulation layer has a slope angle less than 60 degrees; and a wiring layer disposed on the insulation layer, the wiring layer at least partially covers the top electrode layer exposed from the insulation layer, and the wiring layer covers the edge of the insulation layer in an overlapping area of the wiring layer and the insulation layer.
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25.发明授权公开(公告)号：US12239021B2
公开(公告)日：2025-02-25
申请号：US17486743
申请日：2021-09-27
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yuju Chen
IPC: H01L41/047 , H10N30/05 , H10N30/063 , H10N30/87
Abstract: The present disclosure provides a piezoelectric element, a piezoelectric vibrator, and a manufacturing method thereof, and an electronic device, and the present disclosure relates to the field of piezoelectric technologies. In the present disclosure, the piezoelectric element is provided with a first electrode and a second electrode positioned on the first electrode. The second electrode is provided with an opening where the first electrode is exposed. A piezoelectric structure is further arranged in the piezoelectric element. The piezoelectric structure includes a first piezoelectric portion and a second piezoelectric portion arranged around the first piezoelectric portion. The first piezoelectric portion is arranged in the opening and is in contact with the first electrode, the second piezoelectric portion is arranged on a side of the second electrode away from the first electrode, and the second piezoelectric portion has orientation.
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Patent Agency Ranking
公开(公告)号：US12218273B2
公开(公告)日：2025-02-04
申请号：US17776127
申请日：2021-03-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yuju Chen
Abstract: A micro light-emitting diode (μLED) chip includes a first electrode layer, a second semiconductor layer located on a surface of the first electrode layer, and a first semiconductor layer located on a side of the second semiconductor layer away from the first electrode layer, and a light-emitting layer located between the first semiconductor layer and the second semiconductor layer. The second semiconductor is electrically connected to the first electrode layer, and is configured to transmit first carriers. The first semiconductor layer is configured to transmit second carriers. The light-emitting layer is configured to be excited to emit light upon combination of the first carriers and the second carriers. A surface of the first semiconductor layer away from the light-emitting layer is a concave-convex microstructure, and convex portions of the concave-convex microstructure are configured to receive an electron beam.
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公开(公告)号：US12175856B2
公开(公告)日：2024-12-24
申请号：US17795762
申请日：2021-09-26
Inventor： Yongchun Tao , Yuju Chen , Xiaofeng Yin , Yingzi Wang
IPC: G08B6/00
Abstract: The present disclosure provides a haptic rendering device, a method, a display device and a controller. The haptic rendering device includes: a substrate; a first driver arranged on the substrate and configured to vibrate and drive the substrate to vibrate after receiving a first driving signal; a vibration sensor arranged on the substrate and configured to generate a first detection voltage signal according to an amplitude or a frequency at which the first driver vibrates together with the substrate in a case where the substrate vibrates; and a controller configured to output the first driving signal to the first driver, receive the first detection voltage signal, and adjust the first driving signal according to the first detection voltage signal.
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公开(公告)号：US12142134B2
公开(公告)日：2024-11-12
申请号：US17620546
申请日：2021-02-26
Inventor： Xiaotong Liu , Yuju Chen
Abstract: The present disclosure provides a haptic feedback substrate, a haptic feedback apparatus and a haptic feedback method. The haptic feedback substrate comprises an actuator and a plurality of vibration units connected to the actuator, wherein each vibration unit has a different inherent frequency, the actuator is configured to generate a vibration signal and drive the vibration unit with the inherent frequency being a target inherent frequency to resonate, and a difference between the target inherent frequency and a frequency of the vibration signal is less than or equal to a present threshold.
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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：US20240220017A1
公开(公告)日：2024-07-04
申请号：US17904996
申请日：2021-12-01
Inventor： Yuju Chen
IPC: G06F3/01 , G06F3/041 , G06F3/044 , G06F3/0485 , G06F3/0488
CPC classification number: G06F3/016 , G06F3/0414 , G06F3/04166 , G06F3/0445 , G06F3/0485 , G06F3/0488 , G06F2203/014
Abstract: An electronic apparatus is provided. The electronic apparatus includes a touch control device configured to detect a position of a touch on a surface of the electronic apparatus; a haptic device configured to produce a vibration pattern on the surface; a driving circuit configured to drive the haptic device; and a processor configured to determine in real time a relative position between the touch and a boundary zone of a virtual object, and upon determination that the position of the touch enters the boundary zone, transmit a first driving signal to the driving circuit. Upon receiving the first driving signal, the driving circuit is configured to drive the haptic device to produce a first vibration pattern having characteristics that simulate a boundary of the virtual object.
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