公开(公告)号：US11101316B2

公开(公告)日：2021-08-24

申请号：US16062785

申请日：2017-12-11

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yunke Qin ,  Xue Dong ,  Jing Lv ,  Haisheng Wang ,  Chunwei Wu ,  Yingming Liu ,  Xiaoliang Ding ,  Changfeng Li ,  Lijun Zhao ,  Pengpeng Wang ,  Ping Zhang ,  Pinchao Gu

IPC: G06F3/042 ,  H01L27/146

Abstract: An optical pressure touch device, a manufacturing method thereof, and a touch display apparatus, so as to reduce the influence on the display effect while realizing the touch function. The optical pressure touch device includes a first substrate, a second substrate opposite to the first substrate, a light source, and a photodetector array and a touch scanning circuit located on a side of the first substrate facing the second substrate, the touch scanning circuit being electrically connected to a photodetector in the photodetector array. A gap exists between the touch scanning circuit and the second substrate, and the light source is used to generate a light field within the gap.

公开(公告)号：US11036977B2

公开(公告)日：2021-06-15

申请号：US15573228

申请日：2017-06-08

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 ,  Ping Zhang ,  Changfeng Li ,  Lijun Zhao ,  Rui Xu

IPC: G06K9/00 ,  H01L27/32 ,  G06K9/20 ,  G09G3/3208 ,  H01L27/146

Abstract: An identity recognition device, and an substrate and an identity recognition circuit are disclosed. In the substrate, a plurality of second recognition output lines are added to be arranged in pairs with first recognition output lines. A control signal loaded to the control signal line will be coupled to the first and second recognition output lines by the parasitic capacitance between the control signal line and the recognition output lines to cause similar signal interference to the first and second recognition output lines. During the identity recognition time period, the signal interference in the electric signal outputted by the first recognition output line can be removed by utilizing the similar noise signal received by the second recognition output line, in such a way to improve the signal-to-noise ratio and detection precision of the identity recognition signal.

公开(公告)号：US10884528B2

公开(公告)日：2021-01-05

申请号：US15776511

申请日：2017-10-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yingming Liu ,  Xue Dong ,  Jing Lv ,  Haisheng Wang ,  Chunwei Wu ,  Xiaoliang Ding ,  Rui Xu ,  Lijun Zhao ,  Changfeng Li ,  Yanan Jia ,  Yuzhen Guo ,  Yunke Qin ,  Pinchao Gu

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/042 ,  H01L27/32 ,  H01L51/52

Abstract: A touch display substrate and a touch detection method thereof. The touch display substrate includes: a base substrate, and a photo-sensitive touch element and an Organic Light-Emitting Diode (“OLED”) device that are arranged on the base substrate sequentially. The photo-sensitive touch element includes a touch electrode layer, a photo-sensitive material layer, an insulating layer and an ITO layer that are arranged sequentially, wherein an orthographic projection of a touch sensing area of the touch electrode layer completely covers an orthographic projection of a pattern of the photo-sensitive material layer, and is within an orthographic projection of the ITO layer. The arrangement of the photo-sensitive touch element neither changes the sequence of manufacturing the layers of the display substrate, nor affects the illumination of the touch display substrate and is suitable for manufacturing a large-size touch screen.

公开(公告)号：US10818226B2

公开(公告)日：2020-10-27

申请号：US16072878

申请日：2017-11-21

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaoliang Ding ,  Haisheng Wang ,  Yingming Liu ,  Chunwei Wu ,  ChihJen Cheng ,  Pengpeng Wang ,  Wei Liu

IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/146

Abstract: Aspects of the present disclosure provide a pixel circuit, a method for driving the same, and a display apparatus. The pixel circuit comprises a display driving circuit. The display driving circuit comprises a reset sub-circuit, a writing sub-circuit, a driving sub-circuit, a light-emitting control sub-circuit, and a light-emitting device. The reset sub-circuit is configured to reset the driving sub-circuit. The writing sub-circuit is configured to write a data voltage into the driving sub-circuit. The light-emitting control sub-circuit is connected to the driving sub-circuit and an anode of the light-emitting device and is configured to provide driving current, through the driving sub-circuit, for causing the light-emitting device to emit light. The pixel circuit further comprises a detection circuit configured to collect incident light and output a collection result to the read signal line. One or more transistors are shared between the detection circuit and the display driving circuit.

公开(公告)号：US10585304B2

公开(公告)日：2020-03-10

申请号：US15936830

申请日：2018-03-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoliang Ding ,  Xue Dong ,  Jing Lv ,  Haisheng Wang ,  Chunwei Wu ,  Yingming Liu ,  Wei Liu ,  Rui Xu ,  Pengpeng Wang ,  Yanling Han ,  Xueyou Cao ,  Ping Zhang

IPC: G06F3/042 ,  G02F1/1333 ,  G06F3/041 ,  G06K9/20 ,  H01L29/786 ,  H01L27/12 ,  G02F1/1362 ,  G02F1/1368 ,  G06K9/00 ,  H01L27/144 ,  H01L31/167 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/13357 ,  H01L31/105

Abstract: The present disclosure provides an array substrate and a method for fabricating the same, and a display apparatus. The array substrate includes: a base substrate, and a shielding pattern and a plurality of detection units on the base substrate. At least one of the plurality of detection units includes a switch transistor and a photosensitive device coupled to the switch transistor. The shielding pattern covers the switch transistor on a side of the switch transistor distal to the base substrate. The photosensitive device is located on a side of the shielding pattern proximal to the base substrate. The shielding pattern is configured to shield irradiation light and allow detection light to be transmitted to the photosensitive device.

公开(公告)号：US10572042B2

公开(公告)日：2020-02-25

申请号：US15563586

申请日：2017-05-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Changfeng Li ,  Xue Dong ,  Haisheng Wang ,  Chunwei Wu ,  Yingming Liu ,  Rui Xu ,  Pengpeng Wang ,  Wei Liu ,  Lijun Zhao ,  Yanan Jia ,  Yanling Han ,  Yuzhen Guo

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32 ,  H01L51/52 ,  G09G3/3225

Abstract: An in cell touch panel, a driving method thereof and a display device are disclosed. The in cell touch panel includes a substrate, an organic light emitting structure on the substrate, and a package protection layer coating said organic light emitting structure. The in cell touch panel further includes a touch electrode structure disposed between the substrate and the package protection layer and coated by the package protection layer; and a connecting terminal disposed on the substrate and coated by the package protection layer. The connecting terminal is electrically connected to a touch electrode in the touch electrode structure.

公开(公告)号：US10545616B2

公开(公告)日：2020-01-28

申请号：US15545142

申请日：2017-02-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Haisheng Wang ,  Xue Dong ,  Jing Lv ,  Chunwei Wu ,  Yingming Liu ,  Xiaoliang Ding ,  Rui Xu ,  Lijun Zhao ,  Changfeng Li ,  Wei Liu ,  Pengpeng Wang ,  Yanan Jia ,  Yanling Han ,  Xueyou Cao ,  Ping Zhang ,  Yuzhen Guo

IPC: G06F3/041 ,  G06F3/042

Abstract: The present disclosure provides a touch display panel, a flexible display panel and a display apparatus. In one embodiment, light sensitive effect-based photo-sensitive diodes and switching transistors for controlling signal output of the photo-sensitive diodes are integrated in the display panel. Once a touch operation of an object (e.g., a finger) is implemented on a surface of the display panel, the photo-sensitive diode in a corresponding position can convert a sensed light intensity difference into an electrical signal difference to achieve detection of the touch operation.

公开(公告)号：US20190236327A1

公开(公告)日：2019-08-01

申请号：US16316541

申请日：2018-03-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yanan Jia ,  Xue Dong ,  Haisheng Wang ,  Chunwei Wu ,  Yingming Liu ,  Changfeng Li ,  Rui Xu ,  Lijun Zhao ,  Yunke Qin ,  Pinchao Gu ,  Yuzhen Guo ,  Yanling Han

IPC: G06K9/00 ,  H01L27/12 ,  G02F1/1333 ,  G02F1/1368

Abstract: Disclosed are an optical fingerprint identification device and a display panel including the same. The optical fingerprint identification device includes a light emitting structure and a photosensitive sensor. The light emitting structure includes a transparent first electrode, an opaque second electrode, an electroluminescent layer between the first electrode and the second electrode, and a through hole penetrating the first electrode, the electroluminescent layer and the second electrode. The photosensitive sensor is disposed on a side of the second electrode facing away from the electroluminescent layer, and is configured to receive light rays transmitted through the through hole and acquire fingerprint information according to the received light rays.

公开(公告)号：US20190120687A1

公开(公告)日：2019-04-25

申请号：US16094796

申请日：2018-02-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoliang Ding ,  Xue Dong ,  Jing Lv ,  Haisheng Wang ,  Chunwei Wu ,  Yingming Liu ,  Pengpeng Wang ,  Wei Liu ,  Yanling Han ,  Xueyou Cao ,  Ping Zhang

IPC: G01J1/42 ,  G09G5/10 ,  G01J1/46

Abstract: The present application proposes a circuit and method for detecting ambient light, and a display panel. The circuit for detecting ambient light includes a light sensing sub-circuit configured to output a voltage pulse signal related to present intensity of the ambient light; and a detection sub-circuit electrically connected to the light sensing sub-circuit, and configured to acquire a frequency of the voltage pulse signal, and obtain the present intensity of the ambient light according to the frequency of the voltage pulse signal.

公开(公告)号：US11769344B2

公开(公告)日：2023-09-26

申请号：US17804474

申请日：2022-05-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pinchao Gu ,  Haisheng Wang ,  Chunwei Wu ,  Yingming Liu ,  Rui Xu ,  Changfeng Li ,  Lijun Zhao ,  Yanan Jia ,  Yuzhen Guo ,  Yunke Qin

IPC: G06V10/147 ,  H01L27/32 ,  G06V10/145 ,  G06V40/13 ,  H10K59/65 ,  G06V40/16

CPC classification number: G06V40/1318 ,  H10K59/65 ,  G06V40/16

Abstract: A device for identifying a pattern over a first surface includes a photosensitive layer, and a light-guiding layer disposed between the photosensitive layer and the first surface. The photosensitive layer includes a plurality of photosensitive elements, each configured to convert incident light into an electrical signal. The light-guiding layer includes a plurality of light-guiding units, each positionally corresponding to one of the plurality of photosensitive elements. Each light-guiding unit include a plurality of light-transmitting portions, each configured to guide a light beam reflected from a feature of the pattern positionally corresponding thereto to transmit therethrough and reach one of the plurality of photosensitive elements corresponding to the each of the plurality of light-guiding units. The device can be used for identification of fingerprint, as well as other biometric or non-biometric features, and has a reduced thickness and an improved accuracy for pattern identification.