公开(公告)号：US20210334508A1

公开(公告)日：2021-10-28

申请号：US16494938

申请日：2019-04-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiandong MENG ,  Wei WANG ,  Xiaochuan CHEN ,  Haisheng WANG ,  Pinchao GU ,  Jian GAO

IPC: G06K9/00 ,  H01L27/32

Abstract: A fingerprint recognition device, a recognition device and a display device are provided to include: a light guiding layer and a plurality of recognizer units, on a side of a light transmission substrate. Each recognizer unit includes: a first optical grating which is between the light guiding layer and the light transmission substrate and is configured to diffractively couple a fingerprint light ray having an incident angle within a preset angle range to the light guiding layer; a second optical grating on a side of the light guiding layer; and a detector module on a side of the second optical grating away from the light guiding layer. The second optical grating is configured to extract the fingerprint light ray in the light guiding layer to the detector module, and the detector module is configured to detect a light intensity of the fingerprint light ray.

公开(公告)号：US20210334491A1

公开(公告)日：2021-10-28

申请号：US16316493

申请日：2018-02-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pinchao GU ,  Xue DONG ,  Haisheng WANG ,  Chunwei WU ,  Yingming LIU ,  Rui XU ,  Changfeng LI ,  Yanan JIA ,  Yuzhen GUO ,  Yunke QIN ,  Lijun ZHAO

IPC: G06K9/00

Abstract: The present disclosure provides an ultrasonic fingerprint sensor, a display substrate, a driving method thereof and a display device. The ultrasonic fingerprint sensor includes: a base substrate; a driving structure provided on the base substrate and configured to transmit an ultrasonic signal; a receiving structure provided on the base substrate and configured to receive the ultrasonic signal reflected by a finger, and convert the ultrasonic signal into an electrical signal for determining fingerprint information, the driving structure and the receiving structure are provided in a same plane. Since the driving structure and the receiving structure of the ultrasonic fingerprint sensor of the present disclosure are in a same plane, the driving structure can be closer to the touch body (for example, a finger), which is advantageous for the ultrasonic waves generated by the driving structure to reach the finger to improve the touch accuracy.

公开(公告)号：US20210223928A1

公开(公告)日：2021-07-22

申请号：US16303961

申请日：2018-04-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueyou CAO ,  Haisheng WANG ,  Xiaoliang DING ,  Chihjen CHENG ,  Yuzhen GUO ,  Yanling HAN ,  Wei LIU ,  Pengpeng WANG ,  Ping ZHANG

IPC: G06F3/041

Abstract: Provided is a touch circuit including first and second voltage input terminals, a pressure sensing circuit and an output circuit, the first voltage input terminal is configured to input a first voltage signal, the second voltage input terminal is configured to input a second voltage signal, the first voltage signal is different from the second voltage signal, an input terminal of the pressure sensing circuit is coupled to the first voltage input terminal, an output terminal of the pressure sensing circuit is coupled to an input terminal of the output circuit, a control terminal of the output circuit is configured to receive a control signal, and the output circuit is configured to control on/off state between the input terminal of the output circuit and the output terminal of the output circuit according to the control signal. A touch panel, a display panel and a display device are also provided.

公开(公告)号：US20210211628A1

公开(公告)日：2021-07-08

申请号：US15778375

申请日：2017-09-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengcheng LU ,  Xiaochuan CHEN ,  Shengji YANG ,  Lei WANG ,  Wenqing ZHAO ,  Dongni LIU ,  Jie FU ,  Han YUE ,  Li XIAO ,  Jian GAO ,  Haisheng WANG ,  Changfeng LI

IPC: H04N13/117 ,  H04N13/31 ,  H04N13/322 ,  H04N13/383 ,  G09G3/36

Abstract: The present disclosure provides a 3D display device and a working method of the same, the 3D display device includes a display panel, a lens unit, an acquiring component and an adjusting component, the acquiring component is configured to acquire current positions of eyes of a viewer, and the adjusting component is configured to adjust a signal for driving the display panel according to the current positions so that display information of the display panel received by the eyes of the viewer at the current positions is the same as display information of the display panel received by the eyes of the viewer at preset positions.

公开(公告)号：US20210200412A1

公开(公告)日：2021-07-01

申请号：US16080077

申请日：2018-02-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueyou CAO ,  Haisheng WANG ,  Xiaoliang DING ,  Yanling HAN ,  Chih Jen CHENG ,  Wei LIU ,  Pengpeng WANG ,  Ping ZHANG

IPC: G06F3/041 ,  G06F3/044 ,  H01Q7/00

Abstract: Embodiments of the present disclosure provide a touch panel and a driving method thereof, and a touch device. The touch panel includes a plurality of touch electrodes and at least one first switch element. Each of the at least one first switch element is provided between two touch electrodes of the plurality of touch electrodes, and is configured to be turned on according to a first signal from a first signal terminal such that the corresponding touch electrodes among the plurality of touch electrodes are connected via the at least one first switch element to form a coil.

公开(公告)号：US20210192170A1

公开(公告)日：2021-06-24

申请号：US16892233

申请日：2020-06-03

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yuanyuan MA ,  Yapeng LI ,  Xiaoliang DING ,  Haisheng WANG ,  Jiabin WANG ,  Xueyou CAO ,  Pengpeng WANG ,  Wenjuan WANG

IPC: G06K9/00 ,  H01L25/16 ,  H01L25/18

Abstract: A panel for fingerprint identification and a control method thereof, and an apparatus for fingerprint identification. The panel for fingerprint identification includes: a display unit, a control unit, a unit for adjusting light transmittance and a unit for fingerprint identification which are disposed on a backlight side of the display unit, wherein an operating state of the panel for fingerprint identification includes: a display stage and a fingerprint identification stage. At the display stage, the display unit is configured to emit first light to display an image to be displayed, the unit for adjusting light transmittance is configured to transmit light transmitted through the display unit, and the control unit is connected with the unit for adjusting light transmittance and is configured to control the light transmittance of the unit for adjusting light transmittance.

公开(公告)号：US20210165524A1

公开(公告)日：2021-06-03

申请号：US17265802

申请日：2020-07-02

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yingming LIU ,  Haisheng WANG ,  Xiaoliang DING ,  Lei WANG ,  Pengpeng WANG ,  Changfeng LI ,  Xiufeng LI ,  Chenyang ZHANG ,  Tianqi WANG

IPC: G06F3/043 ,  B06B1/02 ,  B06B1/06

Abstract: An ultrasonic induction circuit is provided, a first electrode of an ultrasonic sensor is electrically connected with a first terminal of the ultrasonic sensing circuit, a second electrode is electrically connected with a second terminal of a first potential supply sub-circuit, and the first terminal of the first potential supply sub-circuit is electrically connected with a first potential supply end. A gate of M1 is electrically connected with the second electrode and the second terminal of the compensation sub-circuit. The second electrode is electrically connected with the first terminal of the compensation sub-circuit. The first electrode is coupled to the second potential supply end. The first terminal of the signal output sub-circuit is electrically connected to the second electrode of the first transistor, and the second terminal is electrically connected to the second terminal of the ultrasonic induction circuit.

公开(公告)号：US20210156977A1

公开(公告)日：2021-05-27

申请号：US16832786

申请日：2020-03-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiufeng LI ,  Yingming LIU ,  Haisheng WANG ,  Xiaoliang DING ,  Pengpeng WANG ,  Yuzhen GUO ,  Lijun ZHAO ,  Chenyang ZHANG ,  Yaqian JI ,  Yanling HAN ,  Peixiao LI

IPC: G01S7/52 ,  B06B1/06 ,  H01L41/047 ,  H01L41/113 ,  H01L41/18 ,  B06B1/02

Abstract: An ultrasonic sensing module, an ultrasonic sensing device and a control method thereof, and a display device. The ultrasonic sensing module includes a first electrode layer, a piezoelectric layer, a receiving electrode layer and an emission electrode layer. The first electrode layer is on a first side of the piezoelectric layer; the receiving electrode layer and the emission electrode layer insulated from the receiving electrode layer are on a second side of the piezoelectric layer; and the second side is opposite to the first side.

公开(公告)号：US20210074227A1

公开(公告)日：2021-03-11

申请号：US16630854

申请日：2019-04-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ping ZHANG ,  Haisheng WANG ,  Xiaoliang DING ,  Yingming LIU ,  Xueyou CAO ,  Pengpeng WANG ,  Likai DENG ,  Pinchao GU ,  Yunke QIN

IPC: G09G3/34 ,  B01L3/00

Abstract: Disclosed herein is an apparatus comprising: a first switch and a second switch; wherein the first switch is configured to apply a drive signal to a first electrode when the first switch receives a control signal; wherein the second switch is configured to electrically isolate the first electrode from a second electrode when the second switch receives the control signal; wherein the second switch is configured to short-circuit the first electrode to the second electrode when the second switch does not receive the control signal; wherein the first electrode and the second electrode face each other and are separated by a gap configured to accommodate a liquid droplet.

公开(公告)号：US20200271513A9

公开(公告)日：2020-08-27

申请号：US16341498

申请日：2018-07-02

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoliang DING ,  Haisheng WANG ,  Yingming LIU ,  Xueyou CAO ,  Yanling HAN ,  Ping ZHANG

IPC: G01J1/46

Abstract: Embodiments of the present disclosure provide a device and a method for detecting a light intensity. The device includes a photosensor, an input circuit, an amplification circuit, a feedback circuit, a storage circuit, and an output circuit. The photosensor is coupled to a first voltage signal terminal and a first node. The input circuit provides a first voltage signal to the first node according to an input signal. The amplification circuit provides, to a second node, a second voltage signal from a second voltage signal terminal according to the voltage of the first node. The feedback circuit couples the first node to the second node according to a reset signal. The storage circuit stores a voltage difference between the first node and the second node. The output circuit reads the voltage of the second node according to a read signal.