公开(公告)号：US12175856B2

公开(公告)日：2024-12-24

申请号：US17795762

申请日：2021-09-26

Applicant: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

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.

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

IPC: B06B1/02 ,  H04R19/00 ,  G01N29/34

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.

公开(公告)号：US12067165B2

公开(公告)日：2024-08-20

申请号：US17620590

申请日：2021-02-26

Applicant: Beijing BOE Technology Development Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Yongchun Tao ,  Yuju Chen ,  Hui Hua ,  Xiaotong Liu ,  Xiaofeng Yin

IPC: G06F3/01 ,  B06B1/02 ,  B06B1/06 ,  G06F3/041

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.

公开(公告)号：US11533558B2

公开(公告)日：2022-12-20

申请号：US17259245

申请日：2020-03-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yongchun Tao ,  Yichi Zhang ,  Jingwen Guo

IPC: H04R3/00 ,  H04R1/28 ,  H04R1/40 ,  H04R3/12 ,  H04R19/02 ,  H04R29/00

Abstract: An embodiment of the present disclosure provides a method for driving an acoustic transducer, including: obtaining a reference electrical signal according to a first electrical signal output by a first acoustic transducer element in a case where sound waves are not received by the first acoustic transducer element; obtaining an actual detected electrical signal according to a second electrical signal output by a second acoustic transducer element in a case where sound waves are received by the second acoustic transducer element; and performing a noise reduction process on the actual detected electrical signal according to the reference electrical signal to obtain a noise-reduced signal as a final output electrical signal of the second acoustic transducer element in a case where sound waves are received by the second acoustic transducer element. An embodiment of the present disclosure further provides an acoustic transducer.