公开(公告)号：US20180365473A1

公开(公告)日：2018-12-20

申请号：US15736796

申请日：2017-06-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengpeng WANG ,  Xue DONG ,  Jing LV ,  Haisheng WANG ,  Xiaoliang DING ,  Yingming LIU ,  Wei LIU ,  Yanling HAN ,  Xueyou CAO ,  Ping ZHANG ,  Changfeng LI ,  Yanan JIA ,  Yuzhen GUO

IPC: G06K9/00 ,  G09G5/10 ,  G09G3/3208 ,  G09G3/34

CPC classification number: G06K9/0008 ,  G06K9/00 ,  G06K9/0004 ,  G09G3/3208 ,  G09G3/3426 ,  G09G5/10

Abstract: Disclosed are a texture recognition display device and a driving method. The texture recognition display device includes a plurality of first control signal lines and second control signal lines disposed in pairs. During a texture recognition period, the second control signal lines are loaded with a second control signal, the frequency of which is the same as that of a first control signal of the first control signal lines and the phase of which differs from that of the first control signal by 180 degrees. Thus, the noise interference of the first control signal of the first control signal line with a recognition output line may be counteracted, the signal-to-noise ratio of an obtained texture recognition signal can be improved, thereby improving the extraction precision of the texture recognition signal and detection precision.

公开(公告)号：US20180173926A1

公开(公告)日：2018-06-21

申请号：US15553127

申请日：2017-02-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengpeng WANG ,  Xue DONG ,  Jing LV ,  Haisheng WANG ,  Chunwei WU ,  Xiaoliang DING ,  Yingming LIU ,  Wei LIU ,  Yanling HAN ,  Xueyou CAO ,  Changfeng LI ,  Rui XU ,  Yanan JIA ,  Lijun ZHAO

IPC: G06K9/00 ,  G06K9/62 ,  G02F1/1335 ,  G02F1/01

CPC classification number: G06K9/0004 ,  G02F1/0105 ,  G02F1/1336 ,  G06K9/00033 ,  G06K9/6202

Abstract: The present disclosure provides a display device and a fingerprint identification method thereof, which belong to the field of fingerprint identification technology and can solve the existing problems of complex reflective light path in the process of fingerprint identification, large noise in the sensed signal and low accuracy of fingerprint identification. The display device in which the fingerprint identification method of a display device of the present disclosure is applicable comprises a plurality of pixel units for display, and a plurality of light sensing units for generating a sensed signal based on intensity of received light; the fingerprint identification method comprises: enabling part of the pixel units to emit light and keeping other pixel units not to emit light, and performing fingerprint identification based on the sensed signal generated by the plurality of light sensing units.

公开(公告)号：US20210342564A1

公开(公告)日：2021-11-04

申请号：US16316789

申请日：2018-04-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoliang DING ,  Haisheng WANG ,  Yingming LIU ,  ChihJen CHENG ,  Wei LIU ,  Xueyou CAO ,  Pengpeng WANG

IPC: G06K9/00

Abstract: The present disclosure provides a fingerprint detecting device, including: a photosensitive sensing component, a first electrode of which is coupled to a reference signal terminal, a second electrode of which is coupled to a pull-down node; a reset component, coupled to a reset terminal and the pull-down node, configured to reset the pull-down node in a first stage; a voltage output component, coupled to the pull-down node, a selection terminal and an output terminal of the fingerprint detecting device, configured to output a voltage signal to the output terminal of the fingerprint detecting device according to the potential of the pull-down node, the first stage to a second stage, an amount of change in a voltage signal output to the output terminal of the fingerprint detecting device is positively correlated with an amount of change in the potential of the pull-down node.

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：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：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.

公开(公告)号：US20200171540A1

公开(公告)日：2020-06-04

申请号：US16640148

申请日：2019-07-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: B06B1/06 ,  H01L27/32 ,  H01L51/50 ,  H04R9/06 ,  H01L51/52

Abstract: An ultrasonic generator includes a substrate, a lower electrode on the substrate, an upper electrode on the lower electrode, and an ultrasonic generation unit between the lower electrode and the upper electrode. The ultrasonic generation unit includes a vibration chamber and an ultrasonic generation layer on the vibration chamber. The ultrasonic generation layer is configured to propel a surrounding medium to vibrate to generate ultrasonic waves in response to a voltage difference between the upper electrode and the lower electrode.

公开(公告)号：US20200168161A1

公开(公告)日：2020-05-28

申请号：US16609417

申请日：2019-02-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoliang DING ,  Xue DONG ,  Haisheng WANG ,  Yingming LIU ,  Wei LIU ,  Changfeng LI ,  Xueyou CAO ,  Pengpeng WANG ,  Liguang DENG

IPC: G09G3/3266 ,  G09G3/3225

Abstract: An optical signal noise reduction circuit, an optical signal noise reduction method and a display panel are provided in the present disclosure. The optical signal noise reduction circuit includes a reference line, a comparison detection circuitry and a photoelectric signal read line. An electric signal on the photoelectric signal read line includes a noise electric signal and a photoelectric signal. The reference line is configured to sense the noise electric signal on the photoelectric signal read line, to generate a corresponding second electric signal. The comparison detection circuitry is connected to the reference line and the photoelectric signal read line, and configured to acquire the photoelectric signal in accordance with the electric signal on the photoelectric signal read line and the electric signal on the reference line.