公开(公告)号：US20210192167A1

公开(公告)日：2021-06-24

申请号：US16914673

申请日：2020-06-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G06K9/00 ,  G06F3/044 ,  G06F3/041

Abstract: An ultrasonic fingerprint recognition module is described that includes sensing units distributed in the form of array, where the sensing units include: a receiving electrode layer having a plurality of receiving electrodes distributed in the form of array; a piezoelectric material layer disposed on one side of the receiving electrode layer; an emission electrode layer disposed on a side of the piezoelectric material layer distal to the receiving electrode layer, and including a plurality of rows of emission electrodes; a selection circuit having an input terminal which is connected with an excitation signal and an output terminal which is connected with the emission electrode for selecting to transmit the excitation signal to the plurality of emission electrodes; and a pixel receiving circuit connected to the receiving electrode layer that receives a fingerprint signal.

公开(公告)号：US20210164825A1

公开(公告)日：2021-06-03

申请号：US16641495

申请日：2019-04-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Changfeng LI ,  Xue DONG ,  Haisheng WANG ,  Yingming LIU ,  Xiaoliang DING ,  Yanling HAN

IPC: G01F23/292 ,  G01F23/24

Abstract: A method for measuring a liquid includes the steps of providing a microfluidic device which is configured to contain a liquid to be measured and include a plurality of predetermined measurement regions, wherein a plurality of photosensors are disposed at the plurality of predetermined measurement regions, irradiating light of constant intensity onto the microfluidic device so that at least one photosensor of the plurality of photosensors receives light passing through the liquid, acquiring a plurality of photocurrent values output by the plurality of photosensors, and measuring the physical parameters of the liquid according to the plurality of photocurrent values.

公开(公告)号：US20210019018A1

公开(公告)日：2021-01-21

申请号：US16642804

申请日：2019-09-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yuzhen GUO ,  Yingming LIU ,  Haisheng WANG ,  Peixiao LI ,  Chenyang ZHANG ,  Xiufeng LI ,  Lijun ZHAO ,  Yanling HAN

IPC: G06F3/043 ,  H01L41/113 ,  H01L41/04 ,  H01L41/047 ,  H01L41/083 ,  H01L41/27 ,  G06K9/00

Abstract: The present disclosure provides a fingerprint recognition module, a driving method thereof, a manufacturing method thereof, and a display device. The fingerprint recognition module includes a receiving electrode layer, a piezoelectric material layer, and a driving electrode layer. The receiving electrode layer includes a plurality of receiving electrodes arranged in an array along a first direction and a second direction. The piezoelectric material layer is disposed on a side of the receiving electrode layer. The driving electrode layer is disposed on a side of the piezoelectric material layer remote from the receiving electrode layer and includes a plurality of driving electrodes arranged along the second direction. Each driving electrode is a strip electrode extending along the first direction, and overlaps with multiple receiving electrodes arranged along the first direction.

公开(公告)号：US20200259469A9

公开(公告)日：2020-08-13

申请号：US16332246

申请日：2018-05-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: H03F3/08 ,  G06K9/00

Abstract: Embodiments of the present disclosure provide a current amplification circuitry and a driving method thereof, and a fingerprint detection device. The current amplification circuitry includes a voltage control circuit, a plurality of first current amplification circuits, and a second current amplification circuit. The voltage control circuit provides a voltage control signal to the plurality of first current amplification circuits. The first current amplification circuit includes a current mirror, and the current mirror is coupled to a voltage input terminal, the voltage control circuit, and a first input terminal of the second current amplification circuit. The first current amplification circuit amplifies a current from the voltage input terminal according to the voltage control signal provided by the voltage control circuit, and provides the amplified current to the second current amplification circuit. The second current amplification circuit is coupled to the voltage input terminal via a second input terminal and amplifies the amplified current.

公开(公告)号：US20200213712A1

公开(公告)日：2020-07-02

申请号：US16529132

申请日：2019-08-01

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yanling HAN ,  Xue DONG ,  Haisheng WANG ,  Yingming LIU ,  Lijun ZHAO ,  Chenyang ZHANG ,  Peixiao LI ,  Yuzhen GUO ,  Xiufeng LI

IPC: H04R1/28 ,  H01L41/08 ,  H01L41/09

Abstract: A sounding device, a manufacturing method thereof and a display device are provided. The sounding device includes at least two sounding units. Each of the sounding units includes: a transparent structural layer, including a recess and a supporting member located around the recess; and a piezoelectric vibrating film covering the recess, a cavity is formed by the piezoelectric vibrating film and the supporting member. The piezoelectric vibrating film includes a base film covering the recess; and at least one piezoelectric structure located on a side of the cavity away from the transparent structural layer. Each of the at least one piezoelectric structure includes: a first electrode; a piezoelectric material layer located on a side of the first electrode away from the cavity; and a second electrode located on a side of the piezoelectric material layer away from the first electrode.

公开(公告)号：US20200050322A1

公开(公告)日：2020-02-13

申请号：US15757562

申请日：2017-09-21

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yingming LIU ,  Xue DONG ,  Haisheng WANG ,  Xiaoliang DING ,  Chun Wei WU ,  Jen Chih CHENG ,  Yuzhen GUO ,  Yanling HAN

IPC: G06F3/042 ,  G06F3/041 ,  G06F3/043

Abstract: Disclosed floating touch control panel includes a substrate, a modulated light source, a read sub-circuit, an output sub-circuit, an ultrasonic wave sensing unit and a light sensing unit; the ultrasonic wave sensing unit is configured to transmit an ultrasonic wave to a touch control side, to convert an ultrasonic wave reflected back from the touch control side into an electric signal and then provide it to a first node; the light sensing unit is configured to convert a modulated light reflected from the touch control side into an electric signal and then provide it to the first node; the read sub-circuit is configured to output a touch control signal to the output sub-circuit according to a potential of the first node; the output sub-circuit is configured to be controlled by a corresponding first touch control scan line to provide a touch control read line with the received touch control signal.

公开(公告)号：US20190260963A1

公开(公告)日：2019-08-22

申请号：US15773755

申请日：2017-10-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yuzhen GUO ,  Xue DONG ,  Haisheng WANG ,  Yingming LIU ,  Xiaoliang DING ,  Chun Wei WU ,  Chih-Jen CHENG ,  Yanling HAN ,  Rui XU ,  Changfeng LI ,  Yunke QIN ,  Pinchao GU

IPC: H04N7/14 ,  G09F9/30 ,  H04N5/225

Abstract: A display panel, a display device and an image pickup method therefor are provided. The display panel includes a display region and an image pickup apparatus, wherein in a plan view of the display panel, at least a portion of the image pickup apparatus is located in the display region.

公开(公告)号：US20190250031A1

公开(公告)日：2019-08-15

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：US20190237480A1

公开(公告)日：2019-08-01

申请号：US16218793

申请日：2018-12-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: H01L27/12 ,  G09G3/32

CPC classification number: H01L27/124 ,  G09G3/32 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2310/0294

Abstract: An array substrate includes: a plurality of pixel units arranged in an array, selection lines, a reset circuit and readout circuits. Second terminals of transistors in pixel units belonging to a same column are connected to at least two of the read lines, so that a part of the pixel units are connected to a same read line, and another part of the pixel units are connected to the other one of the at least two of the read lines. For each column of the pixel units, each of the read lines is connected to one of the readout circuits corresponding to the column of the pixel units through a switching element; and for each column of the pixel units, each of the read lines is connected to the reset circuit through a switching element.

公开(公告)号：US20190213432A1

公开(公告)日：2019-07-11

申请号：US16131418

申请日：2018-09-14

Applicant: BOE Technology Group Co., Ltd.

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

IPC: G06K9/03 ,  G06K9/00 ,  H03K17/687

CPC classification number: G06K9/036 ,  G06K9/0004 ,  G06K9/0008 ,  G06K9/0051 ,  G11C27/02 ,  H03K17/6871 ,  H03M1/12

Abstract: The disclosure discloses a noise detection circuit, a noise detection method, and a print recognition apparatus, where the noise detection circuit includes a differential amplifier, an analog-to-digital converter, a control circuit, and a first switch circuit; the control circuit is configured to control the first switch circuit to make the first input signal terminal connected with the reference signal terminal or grounded, and to make the second input signal terminal connected with the reference signal terminal or grounded, and when the first input signal terminal is connected with the reference signal terminal or grounded, and the second input signal terminal is connected with the reference signal terminal or grounded, to analyze the digital signal output by the analog-to-digital converter to determine a source of noise of the print recognition apparatus.