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公开(公告)号：US11417846B2
公开(公告)日：2022-08-16
申请号：US17168396
申请日：2021-02-05
Inventor： Yuanhui Guo , Chun Wang , Hui Wang , Yisan Zhang
Abstract: The present disclosure provides a light-emitting layer, an organic light emitting diode (OLED) device, and a display apparatus. The light-emitting layer has a host material containing a first photocrosslinker group. A guest material containing a second photocrosslinker group is prepared. The host material and the guest material are mixed in a solvent to form a mixture. The mixture is coated, annealed, and UV-irradiated on a substrate to form the light-emitting layer. As such, the disclosed light-emitting layer is prepared by the polymerization after being on the substrate. The light-emitting layer has a mesh structure. The mesh structure improves energy transfer between the host material and guest material and increases the lifespan of the resultant OLED device and OLED display apparatus.
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公开(公告)号：US11380741B2
公开(公告)日：2022-07-05
申请号：US16343775
申请日：2018-10-30
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Shengji Yang , Xue Dong , Xiaochuan Chen , Hui Wang , Pengcheng Lu , Chunlei Wang , Wei Li
IPC: H01L27/32 , G09G3/3233 , H01L51/52 , H01L51/00 , H01L51/56
Abstract: A display panel includes a plurality of display elements over a substrate, each including at least one first light-emitting element for emitting a first light out of a first light-emitting surface and at least one second light-emitting element for emitting a second light out of a second light-emitting surface opposing to the first light-emitting surface. Each first light-emitting element has a first light-emitting layer between two first electrodes, which are respectively transparent and reflective so that the first light can transmit out of the first light-emitting surface. Each second light-emitting element includes a second light-emitting layer between two second electrodes, which are respectively transparent and reflective so that the second light transmits out of the second light-emitting surface. The first and second light-emitting surface are below and over the substrate respectively. A driving circuit is configured to drive the display panel.
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公开(公告)号：US11362144B2
公开(公告)日：2022-06-14
申请号：US16611245
申请日：2019-02-26
Applicant: BOE Technology Group Co., Ltd.
Inventor： Shengji Yang , Xue Dong , Xiaochuan Chen , Hui Wang , Pengcheng Lu
Abstract: A display panel, a method for fabricating the same, and a display device are provided. The display panel includes: a base substrate, and a plurality of pixels in an array on the base substrate, wherein each pixel includes a plurality of sub-pixels; each sub-pixel includes: a reflecting element on the base substrate, a first electrode on the reflecting element, a light-emitting element on the first electrode, and a second electrode on the light-emitting element; and in each of the pixels, micro-cavity lengths corresponding to the sub-pixels are different, wherein the micro-cavity length is the distance between the side of the reflecting element away from the base substrate and the side of the second electrode proximate to the base substrate.
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34.发明授权公开(公告)号：US11335293B2
公开(公告)日：2022-05-17
申请号：US16491910
申请日：2019-02-18
Inventor： Yongxian Xie , Yifeng Zou , Hui Wang , Mindong Zheng
IPC: G09G3/36
Abstract: A shift register unit, a method of driving a shift register unit, a gate drive circuit, and a display device are provided. The shift register unit includes an input circuit, an output circuit, a first reset circuit, and a reset control circuit. The input circuit is configured to control a level of a first node; the output circuit is configured to output a clock signal to an output terminal; the first reset circuit is configured to reset the first node; and the reset control circuit is configured to input the first reset signal to the first reset circuit in response to a reset control signal and a reference signal, to turn on the first reset circuit and the reset control circuit is further configured to enable an amplitude of a level of the first reset signal to be larger than an amplitude of a level of the reference signal.
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35.发明授权公开(公告)号：US11289669B2
公开(公告)日：2022-03-29
申请号：US16643354
申请日：2019-08-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Shengji Yang , Xue Dong , Xiaochuan Chen , Hui Wang , Pengcheng Lu , Kuanta Huang
Abstract: The present disclosure provides a light-emitting device, a pixel unit, a method for manufacturing the pixel unit, and a display device. The light-emitting device comprises a first electrode, an organic light-emitting layer and a second electrode which are sequentially disposed on a substrate; the first electrode comprises a reflecting layer, a transparent insulating layer and a transparent contact layer which are sequentially disposed on the substrate; and the second electrode is a semi-transparent electrode, so that a cavity is formed between the second electrode and the reflecting layer.
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Patent Agency Ranking
36.发明授权公开(公告)号：US11227544B2
公开(公告)日：2022-01-18
申请号：US16487376
申请日：2019-01-14
Applicant: BOE Technology Group Co., Ltd.
Inventor： Shengji Yang , Xue Dong , Xiaochuan Chen , Hui Wang , Pengcheng Lu
IPC: G09G3/3233
Abstract: The disclosure discloses a pixel circuit, an electroluminescent display panel, driving methods thereof, and a display device. An initialization circuit, a photosensitive drive circuit, a photosensitive output circuit, and a photosensitive device are provided in the pixel circuit. Under the control of a second control signal terminal, an initialization signal provided by an initialization signal terminal is transmitted to a third node by the initialization circuit; under the control of a potential of the third node, the photosensitive drive circuit outputs a corresponding electrical signal; and under the control of a first gate signal terminal, the photosensitive output circuit transmits the electrical signal output by the photosensitive drive circuit to a reading signal terminal.
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37.发明授权公开(公告)号：US11217637B2
公开(公告)日：2022-01-04
申请号：US16463887
申请日：2018-12-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Shengji Yang , Xue Dong , Xiaochuan Chen , Hui Wang , Yanming Wang , Fang Yu , Wei Li
IPC: H01L29/207 , H01L27/32 , G06F3/041 , H01L51/56
Abstract: The present disclosure is related to a display substrate. The display substrate having a display area comprises a first electrode layer on a base substrate; a second electrode layer on a side of the first electrode layer far away from the base substrate; a light emitting layer between the first electrode layer and the second electrode layer; a pixel definition layer defining a plurality of sub-pixel regions with each of the plurality of sub-pixel regions containing the light emitting layer and the first electrode layer; and a signal line coupled to the second electrode layer. The signal line is substantially within the display area and at a different layer from the second electrode layer.
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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
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.
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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
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.
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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
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.
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