公开(公告)号：US20210201063A1

公开(公告)日：2021-07-01

申请号：US16765936

申请日：2019-11-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Haisheng WANG ,  Xue DONG ,  Yingming LIU ,  Xiaoliang DING ,  Lei WANG ,  Changfeng LI ,  Yapeng LI

IPC: G06K9/20 ,  G06K9/00

Abstract: A drive method for a texture recognition device and a texture recognition device. The texture recognition device includes a light source array and an image sensor array. The image sensor array includes a plurality of image sensors, the plurality of image sensors are configured to receive light emitted from the plurality of sub-light sources and then reflected by a texture to the plurality of image sensors for a texture collection; the drive method includes: at a first moment, the light source array operating to provide a first photosensitive light source, and at the first moment or a second moment different from the first moment, the light source array operating to provide a second photosensitive light source. A first imaging range of the first photosensitive light source on the image sensor array partially overlaps a second imaging range of the second photosensitive light source on the image sensor array.

公开(公告)号：US20210097251A1

公开(公告)日：2021-04-01

申请号：US16861576

申请日：2020-04-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xueyou CAO ,  Pengpeng WANG ,  Wenjuan WANG ,  Xiaoliang DING ,  Haisheng WANG ,  Ping ZHANG

IPC: G06K9/00 ,  H03K17/687

Abstract: The present disclosure relates to a circuit for fingerprint identification and a driving method thereof, a display panel, and a display device. The circuit for fingerprint identification of the present disclosure includes a voltage adjustment circuit, a photodiode, and a signal output circuit; wherein the voltage adjustment circuit is electrically connected with an anode of the photodiode, and the signal output circuit is electrically connected with a cathode of the photodiode; the voltage adjustment circuit is configured to adjust an anode voltage input to the photodiode to enable the photodiode to work in a linear region; and the signal output circuit is configured to amplify and output a signal output by the photodiode.

公开(公告)号：US20210019016A1

公开(公告)日：2021-01-21

申请号：US16629003

申请日：2019-05-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoliang DING ,  Xue DONG ,  Haisheng WANG ,  Yingming LIU ,  Xueyou CAO ,  Wei LIU

IPC: G06F3/042 ,  G06F3/041 ,  G09G3/3266 ,  G06K9/00 ,  G09G3/3225

Abstract: The present disclosure provides a touch circuit, a touch device, and a touch method. The touch circuit includes: at least one photodetection circuit, and a first capacitor electrically connected to the at least one photodetection circuit. Each photodetection circuit is configured to detect modulated light reflected by a touch object, generate a modulation signal according to the modulated light, and output the modulation signal through the first capacitor.

公开(公告)号：US20200348818A1

公开(公告)日：2020-11-05

申请号：US16552193

申请日：2019-08-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaoliang DING ,  Haisheng WANG ,  Yingming LIU ,  Xiaochuan CHEN ,  Bo CHEN ,  Feiteng LIU ,  Wenhui LI

IPC: G06F3/041 ,  H01L27/32 ,  G06K9/00

Abstract: The present disclosure provides a sensor pixel, an ultrasonic sensor, an OLED display panel and an OLED display device, in which the sensor pixel includes a base substrate, a piezoelectric transducer and a sensor pixel circuit arranged on the base substrate; the energy sensor is connected to a first signal input terminal and the first node; the sensor pixel circuit includes a signal node control subcircuit for controlling the first node according to a signal of the reset signal terminal and a signal of the second signal input terminal, a drive subcircuit for providing a detection signal to the second node under the control of a signal of the first node, and a read subcircuit for providing a signal of the second node to the signal read line under the control of the read signal terminal.

公开(公告)号：US20200272228A1

公开(公告)日：2020-08-27

申请号：US15776960

申请日：2017-09-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoliang DING ,  Xue DONG ,  Haisheng WANG ,  Chunwei WU ,  Yingming LIU ,  Pengpeng WANG ,  Chihjen CHENG ,  Yanling HAN ,  Xueyou CAO

IPC: G06F3/01 ,  G06F3/0481 ,  G06F3/0484 ,  G06T15/20 ,  G06T7/70

Abstract: The present disclosure provides an interaction system of three-dimensional space and a method for operating the same, comprising: determining visual field space according to an eye position of an operator and an angle at which the eye is watching, and determining absolute interaction space and relative interaction space according to respective joint positions of the operator and the visual field space, thereby achieving dividing of areas of the space; determining an operation that matches a current action and needs to be performed by the operator on a selected virtual object according to a relationship among the current action of the operator, the virtual object viewed by the operator and the absolute interaction space, such that when the operator makes the corresponding action, the operation matching the action of the operator is performed on the virtual object; outputting the generated corresponding three-dimensional image display signal to a three-dimensional image display device to complete somatosensory interaction of the three-dimensional space.

公开(公告)号：US20200242321A1

公开(公告)日：2020-07-30

申请号：US16637025

申请日：2019-05-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G06K9/00 ,  G09G5/10

Abstract: Provided are a compensation structure and a driving method thereof, a display panel, and a display device. The compensation structure includes a photoelectric sensing circuit, a fingerprint recognition circuit and a compensation circuit. The photoelectric sensing circuit is configured to respectively generate a first electric signal and a second electric signal according to received first optical signal and second optical signal. The fingerprint recognition circuit is configured to be connected to the photoelectric sensing circuit to receive the first electric signal, and to employ the first electric signal to determine a fingerprint pattern. The compensation circuit is configured to be connected to the photoelectric sensing circuit to receive the second electric signal, and to employ the second electric signal to perform optical compensation so as to adjust the first electric signal.

公开(公告)号：US20200212137A1

公开(公告)日：2020-07-02

申请号：US16631280

申请日：2019-04-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengpeng WANG ,  Haisheng WANG ,  Xiaoliang DING ,  Wei LIU ,  Changfeng LI ,  Yanling HAN ,  Ping ZHANG

IPC: H01L27/32 ,  G09G3/3266 ,  G09G3/3291 ,  G09G3/325

Abstract: An array substrate includes a plurality of sub-pixels and at least one light photosensitive detection assembly, and each photosensitive detection assembly corresponds to at least one sub-pixel. The at least one photosensitive detection assembly includes: a photosensitive element and a signal reading element coupled to the photosensitive element and a first reading signal line, the photosensitive element is configured to detect a luminance of a corresponding sub-pixel, and output a light detection signal according to the luminance of the corresponding sub-pixel. The signal reading element is configured to read the light detection signal output by the photosensitive element, and output a first detection signal to the first reading signal line according to the light detection signal.

公开(公告)号：US20190310296A1

公开(公告)日：2019-10-10

申请号：US16206144

申请日：2018-11-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chihjen CHENG ,  Xiaoliang DING ,  Pengpeng WANG ,  Xueyou CAO ,  Yuzhen GUO

IPC: G01R27/26 ,  H03K17/96

Abstract: A sense circuit for a piezoresistive sensor is provided that comprises: an energy storage circuit coupled to the piezoresistive sensor via a first node; a charge control circuit coupled to the first node and configured to charge the energy storage circuit to a predetermined potential; a discharge control circuit configured to allow the energy storage circuit to discharge through the piezoresistive sensor; and a readout circuit coupled to the first node and configured to output a sensed voltage based on a level of charges stored by the energy storage circuit

公开(公告)号：US20190220645A1

公开(公告)日：2019-07-18

申请号：US16307912

申请日：2018-02-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoliang DING ,  Xue DONG ,  Jing LV ,  Haisheng WANG ,  Chunwei WU ,  Yingming LIU ,  Wei LIU ,  Pengpeng WANG ,  Yanling HAN ,  Xueyou CAO ,  Ping ZHANG

IPC: G06K9/00 ,  G09G3/3225

Abstract: A fingerprint recognition apparatus is provided. The fingerprint recognition apparatus includes m driving signal lines, n reading signal lines, and m*n photosensitive devices. Each of a plurality of electrode signal controllers is connected to at least two of the m driving signal lines, the plurality of electrode signal controllers are configured to simultaneously input driving signals of different frequencies to each of the m driving signal lines connected to the plurality of electrode signal controllers, and a demodulator is connected to the n reading signal lines, and is configured to demodulate electrical signals of different frequencies transmitted on each of the n reading signal lines.

公开(公告)号：US20190204978A1

公开(公告)日：2019-07-04

申请号：US16184259

申请日：2018-11-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chihjen CHENG ,  Xueyou CAO ,  Pengpeng WANG ,  Xiaoliang DING ,  Yuzhen GUO

IPC: G06F3/041 ,  H01L41/04 ,  H01L41/047

CPC classification number: G06F3/0414 ,  G06F3/0412 ,  G06F2203/04105 ,  H01L41/042 ,  H01L41/047 ,  H01L41/1132

Abstract: The present disclosure provides a piezoelectric detection circuit, an array, a pressure detection device and a method. The piezoelectric detection circuit comprises a constant current circuit, a dual-gate transistor, and a transmission circuit. The dual-gate transistor comprises a first gate, a second gate, a first electrode, and a second electrode. The first gate is configured to receive a first voltage signal. The second gate is configured to receive a bias voltage and a pressure. The first electrode is electrically connected to a first voltage terminal. The second electrode is configured to receive a constant current. The transmission circuit is configured to output a second voltage signal from the second electrode. A magnitude of the pressure is obtained according to an amplitude of the second voltage signal.