公开(公告)号：US11327336B2

公开(公告)日：2022-05-10

申请号：US16302026

申请日：2018-03-02

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jian Gao ,  Xiaochuan Chen ,  Yafeng Yang ,  Wei Wang ,  Chen Yu Chen

IPC: G02B30/00 ,  G02B30/27 ,  G02B30/40 ,  G02B30/30 ,  H04N13/31 ,  H04N13/225 ,  G02B30/26 ,  G02B30/32 ,  H04N13/302

Abstract: A panel with a virtual curved display surface and a display device are provided. The virtual curved display panel includes a display panel and a grating. The grating is disposed at a light-exiting side of the display panel, and includes a plurality of light-transmitting regions and a plurality of light-shielding regions spaced apart from each other. Respective widths of the plurality of light-shielding regions of the grating are gradually decreased as respective distances from the plurality of light-shielding regions to a symmetry axis of the display panel are increased, and respective widths of the plurality of light-transmitting regions are gradually increased as respective distances from the plurality of light-transmitting regions to the symmetry axis of the display panel are increased.

公开(公告)号：US11314110B2

公开(公告)日：2022-04-26

申请号：US16076046

申请日：2017-11-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaochen Niu ,  Xue Dong ,  Xiaochuan Chen ,  Wenqing Zhao ,  Haiyan Wang ,  Chenyu Chen

IPC: G09G3/36 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/137

Abstract: Embodiments of the present disclosure provide a liquid crystal display and a driving method thereof. In the liquid crystal display, orthographic projections of each of the light shielding structures and a corresponding light source on the lower substrate overlap. Light emitted from each of the light sources is incident into the liquid crystal layer in a collimated manner, and the first electrode and the second electrode are configured to form an electric field in response to voltages applied to the first electrode and the second electrode, so that liquid crystal molecules within an area of the electric field are deflected to form a convex lens structure.

公开(公告)号：US11308876B2

公开(公告)日：2022-04-19

申请号：US16491547

申请日：2019-03-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongni Liu ,  Minghua Xuan ,  Xiaochuan Chen ,  Lei Wang ,  Zheng Fang ,  Li Xiao ,  Liang Chen ,  Shengji Yang ,  Pengcheng Lu

IPC: G09G3/3233

Abstract: A pixel driving circuit including: N pixel circuits each including a first node and a power supply terminal, N being an integer greater than 1; and N multiplexing circuits configured to selectively couple a data line to the first nodes of the N pixel circuits. A first one of the N multiplexing circuits includes a multiplexing control circuit, and a second one to an N-th one of the N multiplexing circuits include respective multiplexing control circuits and respective reset circuits. The reset circuit of a (j+1)-th one of the N multiplexing circuits is configured to reset the first node of a (j+1)-th one of the N pixel circuits with a power supply voltage in response to a j-th multiplexing control signal being active, j being an integer and 1≤j

公开(公告)号：US11308860B2

公开(公告)日：2022-04-19

申请号：US16605932

申请日：2019-05-10

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ning Cong ,  Minghua Xuan ,  Han Yue ,  Ming Yang ,  Xiaochuan Chen ,  Detao Zhao ,  Liang Chen ,  Can Zhang ,  Can Wang

IPC: G09G3/32

Abstract: The present application discloses a pixel circuit and its driving method. The pixel circuit includes an input circuit, a control circuit, and 2N output circuits with N being a positive integer. The input circuit is configured to control a voltage level of a respective one of N control nodes under control of a gate-driving signal from each gate line and a first control signal. The control circuit is configured to respectively control a voltage level of each of 2N switching nodes under control of the N control nodes. The 2N output circuits are respectively connected to 2N data-signal terminals and the 2N switching nodes. Among the 2N output circuits, an i-th output circuit is configured to input an i-th data signal from an i-th data-signal terminal of the 2N data-signal terminals to an emission circuit under control of an i-th switching node of the 2N switching nodes.

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

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56

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.

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.

公开(公告)号：US11227534B2

公开(公告)日：2022-01-18

申请号：US16611742

申请日：2019-03-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongni Liu ,  Lei Wang ,  Minghua Xuan ,  Xiaochuan Chen ,  Shengji Yang ,  Liang Chen ,  Li Xiao ,  Zheng Fang ,  Detao Zhao ,  Pengcheng Lu

IPC: G09G3/32

Abstract: A display driving circuit includes N levels of display driving sub-circuits and N levels of switching sub-circuits. Each display driving sub-circuit is connected to a corresponding switching sub-circuit. An nth-level display driving sub-circuit includes an nth-level gate driving sub-circuit and an nth-level light-emitting control sub-circuit. An nth-level switching sub-circuit includes an nth-level gate driving switching sub-circuit and an nth-level light-emitting, control switching sub-circuit. The nth-level gate driving switching sub-circuit is configured to enable an nth-level gate driving signal output end to be electrically connected to a (2n−1)th gate line or a 2nth gate line. The nth-level light-emitting control switching sub-circuit is configured to enable an nth-level light-emitting control signal output end to be electrically connected to a (2n−1)th light-emitting control line or a 2nth light-emitting control line, where N is an integer greater than 1, and n is a positive integer smaller than or equal to N.

公开(公告)号：US20220011497A1

公开(公告)日：2022-01-13

申请号：US16474574

申请日：2018-12-25

Applicant: BOE Technology Group Co., Ltd.

Inventor： Wei Wang ,  Jifeng Tan ,  Xiandong Meng ,  Wenqing Zhao ,  Xiaochuan Chen

IPC: F21V8/00

Abstract: The present disclosure relates to a backlight source, a method of manufacturing the backlight source, and a display device. The backlight source comprising: a light guide plate; a light emitting device on a side of the light guide plate in a thickness direction, wherein the light emitting device is configured to emit light irradiated into the light guide plate; and an optical element on a light emitting side of the light emitting device in a thickness direction, wherein the optical element is configured to convert the light emitted from the light emitting device into a parallel beam propagating in the light guide plate by total reflection. The light emitting device and the optical element may convert the light emitted from the light emitting device to be a parallel beam in the thickness direction of the light guide plate, so that the light may be coupled into the light guide plate according to needs when the light guide plate is rather thin, which facilitates to reduce the thickness of the backlight source and related products.

公开(公告)号：US11221441B2

公开(公告)日：2022-01-11

申请号：US16640802

申请日：2019-08-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiandong Meng ,  Wei Wang ,  Jifeng Tan ,  Xianqin Meng ,  Wenqing Zhao ,  Qiuyu Ling ,  Xiaochuan Chen

IPC: F21V8/00 ,  G02F1/1335 ,  G02F1/13357

Abstract: A light collimation structure includes a light guide plate (1) and a light extraction unit (2) on the light guide plate (1). The light extraction unit (2) may be configured to take out lights having a filtered first color having a narrow band of spectrum, a filtered second color having a narrow band of spectrum, and a filtered third color having a narrow band of spectrum in the light guide plate (1) to provide a collimated first color light, a collimated second color light and a collimated third color light.

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.