公开(公告)号：US20210408429A1

公开(公告)日：2021-12-30

申请号：US16960046

申请日：2019-08-23

Applicant: Boe Technology Group Co., Ltd.

Inventor： Shengji YANG ,  Hui Wang ,  Xiaochuan Chen ,  Kuanta Huang ,  Yanming Wang ,  Pengcheng Lu ,  Yage Song ,  Guangtong LIU ,  Jiantong Li

IPC: H01L51/50 ,  H01L51/56 ,  H01L27/32

Abstract: A display substrate and a manufacturing method thereof are provided. The display substrate includes a base substrate, as well as a first conductive layer, an organic functional layer and a second conductive layer which are on the base substrate sequentially, and the organic functional layer includes a carrier injection layer including a first carrier injection layer portion and a second carrier injection layer portion which are in a first sub-pixel area and a second sub-pixel area respectively; the display substrate further includes a spacer which separates the first carrier injection layer portion and the second carrier injection layer portion, and the carrier injection layer further includes a third carrier injection layer portion which is separated from the first carrier injection layer portion and the second carrier injection layer portion respectively.

公开(公告)号：US20210408332A1

公开(公告)日：2021-12-30

申请号：US16959169

申请日：2019-07-10

Applicant: BOE Technology Group Co., Ltd.

Inventor： Shengji Yang ,  Xiaochuan Chen ,  Hui Wang ,  Pengcheng Lu

IPC: H01L33/38 ,  H01L33/04 ,  H01L33/32 ,  G06F3/044 ,  H01L33/62 ,  H01L33/00 ,  H01L27/15

Abstract: Provided is a display substrate including: a base substrate, a plurality of micro light-emitting diodes and a plurality of touch electrodes; wherein the micro light-emitting diode comprises: a first electrode, a light-emitting layer, and a second electrode that are sequentially arranged in a direction distal from the base substrate; and the touch electrode is disposed on a side of the micro LED distal from the base substrate. A manufacturing method of manufacturing a display substrate, a display panel, and a display device are also provided.

公开(公告)号：US20210407379A1

公开(公告)日：2021-12-30

申请号：US16763348

申请日：2019-05-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Shengji Yang ,  Xiaochuan Chen ,  Hui Wang ,  Kuanta Huang ,  Pengcheng Lu

IPC: G09G3/32 ,  G06F3/041

Abstract: The present application discloses a pixel driving circuit with touch-sensing function. The driving circuit includes a first drive-control sub-circuit, a display-drive sub-circuit, a second drive-control sub-circuit, and an emission-control sub-circuit connected in series to generate a drive-current to drive a light-emission device in the subpixel under control of an emission-control signal in a respective one of multiple emission duty periods of a cycle time for displaying one frame of image. The drive circuit also includes a data-input sub-circuit and a charge sub-circuit to set a first voltage to the control terminal of the display-drive sub-circuit. Additionally, the drive circuit includes a photo-sensing sub-circuit configured to reset a photo-sensing device integrated with the light-emission device in the subpixel for touch sensing in a touch-sensing period before entering any one of the multiple emission duty periods of the cycle time.

公开(公告)号：US11189194B2

公开(公告)日：2021-11-30

申请号：US16080618

申请日：2018-02-02

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Changfeng Li ,  Haisheng Wang ,  Yingming Liu ,  Xiaoliang Ding ,  Rui Xu ,  Pengpeng Wang ,  Wei Liu ,  Yuzhen Guo ,  Pengcheng Lu ,  Yanan Jia ,  Pinchao Gu

IPC: G09B21/00 ,  G09G3/00

Abstract: The embodiments of the present disclosure provide a display panel, a display device, and a method for displaying Braille information. The display panel includes a plurality of scan lines, data lines, and display circuits arranged at intersections of the plurality of scan lines and the plurality of data lines. The display circuit includes a switch configured to be turned on or off according to a scan signal from the scan line, and a dot element coupled to the switch. The dot element includes a substrate, an electrode provided on the substrate, a thermosensitive layer provided on the electrode, and a dot key arranged on the thermosensitive layer. The electrode is coupled to the switch, and configured to be applied with a data signal from the data line when the switch is turned on. The thermosensitive layer is configured to be heated by the electrode to protrude the dot.

公开(公告)号：US11106296B2

公开(公告)日：2021-08-31

申请号：US16078061

申请日：2017-12-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shengji Yang ,  Xue Dong ,  Jing Lv ,  Xiaochuan Chen ,  Dongni Liu ,  Lei Wang ,  Pengcheng Lu ,  Jie Fu ,  Han Yue ,  Li Xiao

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36 ,  G09G3/3266

Abstract: A shift register unit includes an input circuit, a first control circuit, a second control circuit, a third control circuit, a first output circuit, and a second output circuit. The first and second output circuits selectively transfer a first reference voltage from a first reference voltage terminal and a third reference voltage from a third reference voltage terminal to an output terminal of the shift register unit. This allows the shift register unit to output a desired output signal in an easy manner.

公开(公告)号：US11029774B2

公开(公告)日：2021-06-08

申请号：US16029162

申请日：2018-07-06

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shengji Yang ,  Xue Dong ,  Xiaochuan Chen ,  Pengcheng Lu ,  Lei Wang ,  Zhi Wang ,  Weifeng Han ,  Jing Yu

IPC: G06F3/041 ,  G09G3/3225 ,  G06F3/044 ,  G09G3/3233

Abstract: The present disclosure relates to a touch panel and a touch screen. In the touch panel, the cathode is reused. In the touch control stage, each of the cathodes serves as a touch electrode, and normal display and touch functions of the touch panel can be realized by a time-division driving manner. Specifically, in the display stage, the pixel circuit controls the light emitting state of each pixel point (each pixel point has a light emitting device including a cathode); in the touch control stage, touch control signals are applied onto all control signal terminals of the pixel circuit and the cathodes at the same time. By doing so, on the basis that the touch control function can be realized, the synchronous driving of the touch control electrodes and the electrodes corresponding to the touch control electrodes can be realized.

公开(公告)号：US10929633B2

公开(公告)日：2021-02-23

申请号：US15751848

申请日：2017-07-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shengji Yang ,  Xue Dong ,  Hailin Xue ,  Xiaochuan Chen ,  Haisheng Wang ,  Yingming Liu ,  Lei Wang ,  Xiaoliang Ding ,  Rui Xu ,  Pengcheng Lu

IPC: G06K9/00 ,  G06F3/041 ,  H01L51/56

Abstract: Embodiments of the disclosure relate to a fingerprint identification device, a touch display panel, and a method for driving a fingerprint identification device. The fingerprint identification device for identification of a fingerprint of a finger, includes: at least one resonant chamber; and at least one ultrasonic generating and detecting device provided opposite to the at least one resonant chamber; each of the at least one ultrasonic generating and detecting device is configured to generate initial ultrasonic signals having a frequency which is identical to an initial intrinsic frequency of the resonant chamber in a condition of being untouched by the finger, and each of the at least one ultrasonic generating and detecting device is also configured to convert the ultrasonic signals reflected by ridges and valleys of the finger into electrical signals, and to determine information on pattern of the finger depending on the electrical signals.

公开(公告)号：US10923031B2

公开(公告)日：2021-02-16

申请号：US16087972

申请日：2018-02-12

Applicant: BOE Technology Group Co., Ltd.

Inventor： Shengji Yang ,  Xue Dong ,  Xiaochuan Chen ,  Hui Wang ,  Yanming Wang ,  Pengcheng Lu ,  Wei Liu ,  Huijuan Wang ,  Minghua Xuan

IPC: G09G3/3233 ,  G09G3/3258

Abstract: A pixel unit circuit includes a light emitting element, a first end being connected to a low level input end; a storage capacitor sub-circuit, a first end being connected to a DC voltage input end; a driving transistor, a gate electrode being connected to a second end of the storage capacitor sub-circuit, and a first electrode being connected to a second end of the light emitting element; a light emitting control sub-circuit, a control end being connected to a light emitting control line, the first end being connected to a high-level input end, and the second end being connected to a second electrode of the driving transistor, and configured to control whether the second electrode of the driving transistor is connected to the high level input end; and a charge compensation control sub-circuit, connected to a gate line, a data line and the gate electrode of the driving transistor.

公开(公告)号：US10901544B2

公开(公告)日：2021-01-26

申请号：US16250504

申请日：2019-01-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lei Wang ,  Shengji Yang ,  Minghua Xuan ,  Li Xiao ,  Pengcheng Lu ,  Dongni Liu

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32

Abstract: A display substrate includes a substrate, a plurality of electrode leads disposed on the substrate, and a plurality of electrodes electrically disconnected with each other disposed on the substrate. Each electrode is in direct contact with one or more of the plurality of electrode leads, and a thickness of each electrode lead is greater than a thickness of a corresponding electrode. At least one of the plurality of electrode leads is respectively provided with at least one gap, and each gap is configured to electrically disconnect one of the plurality of electrodes that is in direct contact with a corresponding electrode lead from another one of the plurality of electrodes that is adjacent to the corresponding electrode lead.

公开(公告)号：US10886356B2

公开(公告)日：2021-01-05

申请号：US16394254

申请日：2019-04-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pengcheng Lu ,  Kuanta Huang ,  Xiaochuan Chen ,  Shengji Yang ,  Hui Wang ,  Yanming Wang ,  Weihai Wang ,  Guohong Qin ,  Rongrong Shi ,  Yage Song ,  Jiantong Li

IPC: H01L27/32 ,  H01L27/12 ,  H01L51/52

Abstract: A display panel includes a base substrate, a first electrode contact portion, a light emitting layer, and a first electrode. The first electrode contact portion is disposed on the base substrate and surrounding a display area, and is separated from the display area by an isolation area. The light emitting layer covers the display area and at least a portion of the isolation area, and extends at least partially to an inner edge of the first electrode contact portion or a surface of the first electrode contact portion away from the base substrate. The first electrode is disposed on the light emitting layer and a portion of the first electrode contact portion that is not covered by the light emitting layer.