公开(公告)号：US11519786B2

公开(公告)日：2022-12-06

申请号：US16120642

申请日：2018-09-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengpeng Wang ,  Xue Dong ,  Haisheng Wang ,  Chunwei Wu ,  Xiaoliang Ding ,  Chihjen Cheng ,  Yanling Han ,  Wei Liu ,  Xueyou Cao ,  Ping Zhang ,  Lijun Zhao

IPC: G01K1/02 ,  H02H1/00 ,  H03K5/24 ,  H02H9/04 ,  G01K7/32

Abstract: The present disclosure provides a temperature detection circuit. The temperature detection circuit includes: a first comparator, the first comparator having a first negative input terminal, a first positive input terminal and a first output terminal, the first negative input terminal being connected with an output terminal of a temperature sensor, the first positive input terminal being connected with a first reference voltage terminal; a monostable trigger, an input terminal of the monostable trigger being connected with the first output terminal of the first comparator; a low pass filter, an input terminal of the low pass filter being connected with an output terminal of the monostable trigger. The present disclosure further provides a temperature sensor device and a display device.

公开(公告)号：US11386692B2

公开(公告)日：2022-07-12

申请号：US16764951

申请日：2019-11-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yangbing Li ,  Haisheng Wang ,  Xiaoliang Ding ,  Pengpeng Wang ,  Jiabin Wang ,  Ping Zhang ,  Likai Deng ,  Yapeng Li ,  Chihjen Cheng ,  Yanling Han ,  Xueyou Cao

IPC: G02F1/1335 ,  G06V40/13 ,  G02F1/1333

Abstract: A display panel has a light-exit side and a non-light-exit side opposite to the light-exit side. A direction pointing to the non-light-exit side from the light-exit side is a first direction. In the first direction, the display panel includes a coded aperture mask layer and an optical sensing layer. The coded aperture mask layer includes a plurality of first light-transmission portions and a plurality of first light-shielding portions. The coded aperture mask layer is configured to form at least one part of a coded aperture array. The optical sensing layer includes a plurality of optical sensors. The optical sensing layer is configured to receive texture recognition light passed through the coded aperture array and convert optical signals of the texture recognition light into electrical signals. The texture recognition light is light carrying information about a texture to be recognized.

公开(公告)号：US11353743B2

公开(公告)日：2022-06-07

申请号：US16646360

申请日：2019-03-01

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengpeng Wang ,  Haisheng Wang ,  Xiaoliang Ding ,  Yangbing Li ,  Ping Zhang ,  Likai Deng

IPC: G02F1/13357 ,  G02F1/1335 ,  G02F1/1333

Abstract: The present disclosure relates to a backlight module, a display device, and a method for manufacturing the backlight module. The backlight module includes: a substrate; an optical film layer disposed on one side of the substrate; and at least one photosensitive element disposed on the substrate and configured to sense light from one side of the optical film layer away from the substrate; wherein the optical film layer is provided with a micro-hole array, and an orthographic projection of the micro-hole array on the substrate at least partially overlaps with that of the at least one photosensitive element on the substrate.

公开(公告)号：US11348517B2

公开(公告)日：2022-05-31

申请号：US16609475

申请日：2019-01-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoliang Ding ,  Xue Dong ,  Haisheng Wang ,  Yingming Liu ,  Wei Liu ,  Changfeng Li ,  Pengpeng Wang ,  Huizhong Zhu

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

Abstract: The present disclosure relates to the field of display technology, and more particularly, to a pixel circuit, a driving method thereof, and a display device. The pixel circuit may comprise a first switch element, a driving transistor, a storage capacitor, a second switch element, and a photosensitive element.

公开(公告)号：US11308727B2

公开(公告)日：2022-04-19

申请号：US16622557

申请日：2019-05-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoliang Ding ,  Xue Dong ,  Haisheng Wang ,  Yingming Liu ,  Wei Liu ,  Jiabin Wang ,  Yangbing Li ,  Pengpeng Wang ,  Ping Zhang ,  Likai Deng ,  Bo Chen

IPC: G06V40/13 ,  H04N5/378 ,  G06K9/00

Abstract: The present disclosure provides a fingerprint detection device and method. The fingerprint detection device includes a detection substrate and a signal converter. The detection substrate includes pixels arranged in rows and columns. Each pixel includes a sensing circuit configured to receive an optical signal and output a sensing electrical signal according to the received optical signal. The signal converter includes A/D converters each coupled to one column of sensing circuits. The fingerprint detection device further includes a control circuit coupled to the sensing circuits and the A/D converters and configured to obtain common mode component of sensing electrical signals output by sensing circuits of at least part of the pixels and provide information about the common mode component to the A/D converters. The A/D converter is configured to perform analog-to-digital conversion on difference between the sensing electrical signal from corresponding sensing circuit and the common mode signal.

公开(公告)号：US11301076B2

公开(公告)日：2022-04-12

申请号：US16301523

申请日：2018-02-11

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： ChihJen Cheng ,  Yuzhen Guo ,  Pengpeng Wang ,  Xiaoliang Ding ,  Xueyou Cao ,  Yanling Han ,  Wei Liu

IPC: G06F3/041 ,  H01L27/32

Abstract: A piezoresistive detection circuit includes a first transistor, a second transistor, a fixed resistor, and a pressure sensitive resistor, a first end of the fixed resistor is connected with a first voltage signal terminal, and a second end of the fixed resistor is connected with a first node, a first end of the pressure sensitive resistor is connected with the first node, and a second end of the pressure sensitive resistor is grounded, a gate electrode of the first transistor is connected with the first node, a source electrode of the first transistor is connected with a second voltage signal terminal, and a drain electrode of the first transistor is connected with a source electrode of the second transistor, a gate electrode of the second transistor is connected with a scanning signal line, and a drain electrode of the second transistor is connected with a readline.

公开(公告)号：US11288478B2

公开(公告)日：2022-03-29

申请号：US16639309

申请日：2019-09-17

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yingming Liu ,  Haisheng Wang ,  Xiaoliang Ding ,  Xiufeng Li ,  Pengpeng Wang ,  Chenyang Zhang ,  Yaqian Ji ,  Peixiao Li ,  Jing Liu ,  Ruituo Wang ,  Lei Chen

IPC: G06K9/00 ,  H01L41/18 ,  G06F3/01

Abstract: A fingerprint identification module, a manufacturing method and driving method thereof, and a display device. The fingerprint identification module includes: a driving backplate, including a substrate, identification circuits on the substrate, the identification circuits having a first electrode pad, a second electrode pad; acoustic units including: a first electrode; a piezoelectric film layer positioned on the side, close to the driving backplate, of the first electrode; a second electrode positioned on the side, close to the driving backplate, of the piezoelectric film layer; a first lead-out terminal electrically connected with the first electrode; a second lead-out terminal electrically connected with the second electrode; cavities being in one-to-one correspondence to the acoustic units, the cavities positioned between the second electrodes and the substrate, and one side face, away from the substrate, of cavity being defined by at least one side face, close to the substrate, of the second electrode.

公开(公告)号：US11237672B2

公开(公告)日：2022-02-01

申请号：US16631445

申请日：2019-02-01

Applicant: BOE Technology Group Co., Ltd.

Inventor： Pengpeng Wang ,  Haisheng Wang ,  Xiaoliang Ding ,  Yangbing Li ,  Likai Deng

IPC: G06F3/042 ,  G06T7/50 ,  G01S17/894 ,  G02F1/29 ,  G01S7/481 ,  G01S17/42 ,  H01L25/16 ,  H01L25/18 ,  H01L27/32

Abstract: A display apparatus for detecting three-dimensional (3D) spatial information. The display apparatus includes a display panel having a plurality of active subpixels in a display area configured with multiple gaps respectively between at least some active subpixels, the display panel including a counter substrate at front and a backplane substrate at back; an optical layer at a back side of the backplane substrate; multiple light sensors attached discretely on a back side of the optical layer and substantially aligned with the multiple gaps in the display area; and a light source on the backplane substrate and configured to provide an infrared light signal in a direction toward a field of view beyond the counter substrate. The multiple light sensors are configured to detect respective infrared light signals reflected from multiple different regions of an object in the field of view for collectively deducing 3D spatial information of the object.

公开(公告)号：US20210327024A1

公开(公告)日：2021-10-21

申请号：US16345975

申请日：2018-06-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Pengpeng Wang ,  Haisheng Wang ,  Xiaoliang Ding ,  Chihjen Cheng ,  Yanling Han ,  Ping Zhang

IPC: G06T3/40 ,  G06T7/593 ,  G06T7/80 ,  H04N13/239 ,  H04N13/246

Abstract: The present application provides an image stitching method. The image stitching method includes acquiring a first depth image a present frame of image obtained by a first camera; acquiring a second depth image of the present frame of image obtained by a second camera, the second depth image and the first depth image parlay overlapping with each other; converting the first depth image in a first camera coordinate system defined by the first camera into a third depth image in a second camera coordinate system defined by the second camera; and stitching the third depth image with the second depth image to obtain a stitched image.

公开(公告)号：US11132808B2

公开(公告)日：2021-09-28

申请号：US16138870

申请日：2018-09-21

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaoliang Ding ,  Xue Dong ,  Haisheng Wang ,  Yingming Liu ,  Pengpeng Wang ,  Wei Liu ,  Huizhong Zhu

IPC: G06T7/55 ,  G09G3/00 ,  H01L27/32

Abstract: An OLED display structure, an OLED display device, and a spatial point positioning system and a method thereof are provided. The OLED display structure includes a light emitting layer which has a plurality of pixels, and infrared sub-pixels arranged between adjacent pixels.