公开(公告)号：US20210201717A1

公开(公告)日：2021-07-01

申请号：US16084703

申请日：2018-01-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/00

Abstract: An anti-noise signal modulation circuit, a modulation method, a display panel and a display device are disclosed. The anti-noise signal modulation circuit includes a frequency-modulation control sub-circuit. An input end of the frequency modulation control sub-circuit is configured to receive an initial signal, and an output end of the frequency-modulation control sub-circuit is connected to a signal processing circuit that is preset; the frequency-modulation control sub-circuit is configured to frequency-modulate the initial signal by a switch signal that hops according to a preset period, and to output a modulation result to the signal processing circuit; and a frequency corresponding to the switch signal does not overlap with a noise frequency.

公开(公告)号：US20210160409A1

公开(公告)日：2021-05-27

申请号：US16652661

申请日：2019-10-11

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengpeng WANG ,  Haisheng WANG ,  Xiaoliang DING ,  Yangbing LI ,  Yapeng LI ,  Likai DENG ,  Yuanyuan MA ,  Xueyou CAO ,  Ping ZHANG

IPC: H04N5/225 ,  G02F1/13357 ,  H04N13/254

Abstract: A light source module and a display module are provided. The light source module includes: a substrate; a plurality of first light sources spaced on the substrate, each of the plurality of first light sources being configured to emit visible light; a depth sensor on the substrate; and a first blocking member configured to shield visible light but transmit invisible light. The depth sensor includes a second light source configured to emit invisible light and a light receiving member configured to sense invisible light, an orthographic projection of the second light source on the substrate is located within an orthographic projection of a gap between two adjacent first light sources on the substrate, an orthographic projection of the first blocking member on the substrate at least partially covers the orthographic projection of the second light source on the substrate.

公开(公告)号：US20200285343A1

公开(公告)日：2020-09-10

申请号：US16060886

申请日：2017-11-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoliang DING ,  Haisheng WANG ,  Yingming LIU ,  Wei LIU ,  Chih-Jen CHENG ,  Pengpeng WANG ,  Xueyou CAO ,  Ping ZHANG ,  Chun-Wei WU

IPC: G06F3/042 ,  G06F3/041 ,  H01L27/32

Abstract: The present disclosure provides an optical touch device and a manufacturing method thereof, a display and an electronic device, wherein the optical touch device comprises: a pixel array (11) that comprises a plurality of pixel sub-circuits (101) each of which comprises M first pixels (1011) and N second pixels (1012), wherein detection rays with a preset frequency are emitted by the second pixels (1012), where M and N are positive integers; a light receiving array (12) that comprises a plurality of light receivers (121) corresponding, at a one-to-one basis, to the plurality of pixel sub-circuits (101), wherein each of the light receivers (121) generates an sensing signal by receiving reflected rays of the detection rays emitted by a corresponding second pixel (1012); and a detection circuit (13) connected with the plurality of light receivers (121), wherein the detection circuit (13) performs touch positioning according to the sensing signal generated by each of the light receivers (121), thereby realizing integration of display and optical touch, to attain a higher integration level.

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：US20190354232A1

公开(公告)日：2019-11-21

申请号：US16094658

申请日：2018-03-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoliang DING ,  Haisheng WANG ,  Chun Wei WU ,  Yingming LIU ,  Shenji YANG ,  Pengcheng LU ,  Pengpeng WANG ,  Xueyou CAO ,  Wei LIU

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch readout circuit, a touch display panel and a display device are disclosed, the touch readout circuit includes a first gating circuit, configured to control a first current signal at a first electrode of the light-emitting component; a current mirror circuit, configured to provide the first current signal and a second current signal to a signal processing circuit, a current direction of the second current signal being opposite to a current direction of the first current signal; and a signal processing circuit, configured to: receive the first current signal, the second current signal and a touch scan signal, filter the second current signal to obtain a third current signal, provide a touch readout signal to an output end of the touch readout circuit according to the third current signal, the first current signal and the touch scan signal.

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.

公开(公告)号：US20190212820A1

公开(公告)日：2019-07-11

申请号：US16099109

申请日：2018-03-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G06F3/01 ,  G06F3/041 ,  G06F3/044

CPC classification number: G06F3/016 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044

Abstract: The present disclosure discloses a drive method for driving a touch apparatus. The touch apparatus includes a plurality of touch electrodes. In the drive method, a touch detection signal is applied to the plurality of touch electrodes within a first time interval. A tactile feedback signal is applied to the plurality of touch electrodes within a second time interval. The first time interval and the second time interval are alternated but not overlapped. The present disclosure further discloses a touch apparatus and a touch display apparatus.

公开(公告)号：US20190205592A1

公开(公告)日：2019-07-04

申请号：US16042492

申请日：2018-07-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G06K9/00

Abstract: A recognition device, a fingerprint recognition device and a fingerprint recognition apparatus are provided, and the fingerprint recognition device includes: a detection substrate provided with fingerprint detector units; a light barrier which is provided at a side, provided with the fingerprint detector units, of the detection substrate, and provided with light through holes corresponding to the fingerprint detector units; a cover plate which is provided at a side, facing away from the detection substrate, of the light barrier, and includes a light exit surface facing the light barrier and a touch surface facing away from the light barrier; and a light source for emitting light to the cover plate. Each fingerprint detector unit is configured to output an electrical signal according to an intensity of light incident on the fingerprint detector unit, after the light passes through the light through hole corresponding to the fingerprint detector unit.