公开(公告)号：US11367398B2

公开(公告)日：2022-06-21

申请号：US17244977

申请日：2021-04-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lujiang Huangfu ,  Li Wang ,  Libin Liu

IPC: G09G3/3258 ,  G09G3/3291

Abstract: A pixel circuit includes a potential compensation subcircuit configured to control a junction voltage of a light emitting element to be within a preset voltage range according to an initial voltage input by an initialization reset voltage terminal and a reset sequence input by a reset sequence signal terminal. The preset voltage range is higher than zero and lower than an emission threshold voltage of the light emitting element.

公开(公告)号：US11335269B2

公开(公告)日：2022-05-17

申请号：US17043071

申请日：2020-02-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yipeng Chen ,  Libin Liu ,  Lujiang Huangfu

IPC: G09G3/3258 ,  G09G3/20 ,  G09G3/3291 ,  G09G3/3233

Abstract: The present disclosure provides a pixel circuit including: a driving transistor and a voltage control circuit; wherein in the voltage control circuit, at least one transistor directly coupled to a gate of the driving transistor is an oxide thin film transistor. The disclosure also provides a display substrate and a display apparatus.

公开(公告)号：US11315469B2

公开(公告)日：2022-04-26

申请号：US16616522

申请日：2019-03-20

Applicant: BOE Technology Group Co., Ltd.

Inventor： Zhenzhen Li ,  Lujiang Huangfu ,  Shanshan Bai ,  Kuo Sun

IPC: G09G3/20

Abstract: A display substrate, a method for driving the same, a display device, and a high-precision metal mask are provided. The display area includes a first display sub-area in which pixels are distributed at a high density (e.g., a high resolution), and a second display sub-area in which pixels are distributed at a low density (e.g., a low resolution), and a transition display sub-area, with a distribution density of pixels (a resolution) between the distribution density of pixels in the first display sub-area and a distribution density of pixels in the second display sub-area, is arranged between the first display sub-area and the second display sub-area.

公开(公告)号：US11294272B2

公开(公告)日：2022-04-05

申请号：US16302799

申请日：2017-12-14

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lujiang Huangfu

IPC: G03F1/38 ,  C23C14/24 ,  H01L51/00

Abstract: The present application discloses a donor substrate for depositing a deposition material on an acceptor substrate. The donor substrate includes a base substrate; a patterned thermal barrier layer on the base substrate; and a plurality of openings each of which extending through the patterned thermal barrier layer.

公开(公告)号：US11238816B2

公开(公告)日：2022-02-01

申请号：US16626559

申请日：2019-07-25

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lujiang Huangfu ,  Zhenzhen Li ,  Wenjing Tan

IPC: G09G3/36

Abstract: A method of driving a pixel arrangement structure having first subpixels, second subpixels and third subpixels is provided. The method of driving a pixel arrangement structure includes deriving an first actual data signal of a subpixel of the plurality of first subpixels in an i-th column and in a j-th row based on theoretical data signals; deriving a second actual data signal of a subpixel of the plurality of third subpixels in the i-th column and in the j-th row based on theoretical data signals; deriving a third actual data signal of a subpixel of the plurality of second subpixels in an (i+1)-th column and in the j-th row based on theoretical data signals; and deriving a fourth actual data signal of a subpixel of the plurality of third subpixels in the i-th column and in the (j−1)-th row based on theoretical data signals.

公开(公告)号：US20210335297A1

公开(公告)日：2021-10-28

申请号：US16626559

申请日：2019-07-25

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lujiang Huangfu ,  Zhenzhen Li ,  Wenjing Tan

IPC: G09G3/36

Abstract: A method of driving a pixel arrangement structure having first subpixels, second subpixels and third subpixels is provided. The method of driving a pixel arrangement structure includes deriving an first actual data signal of a subpixel of the plurality of first subpixels in an i-th column and in a j-th row based on theoretical data signals; deriving a second actual data signal of a subpixel of the plurality of third subpixels in the i-th column and in the j-th row based on theoretical data signals; deriving a third actual data signal of a subpixel of the plurality of second subpixels in an (i+1)-th column and in the j-th row based on theoretical data signals; and deriving a fourth actual data signal of a subpixel of the plurality of third subpixels in the i-th column and in the (j−1)-th row based on theoretical data signals.

公开(公告)号：US11106098B2

公开(公告)日：2021-08-31

申请号：US16620732

申请日：2018-12-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Hui Zhao ,  Jing Yu ,  Lujiang Huangfu ,  Wenjing Tan

IPC: H01L27/32 ,  G02F1/1343

Abstract: A pixel arrangement structure, a display substrate, a display device, and a mask are provided. The pixel arrangement structure includes: a first repeating unit and a second repeating unit. The first repeating unit includes a first sub-pixel, a second sub-pixel, and two third sub-pixels, and the second repeating unit includes two fourth sub-pixels, a fifth sub-pixel, and a sixth sub-pixel. In a first direction, the two third sub-pixels are between the first sub-pixel and the second sub-pixel, and the two fourth sub-pixels are between the fifth sub-pixel and the sixth sub-pixel. The two fourth sub-pixels are arranged along the first direction, the two third sub-pixels are arranged along a second direction, and the first direction and the second direction are not parallel to each other.

公开(公告)号：US10657883B2

公开(公告)日：2020-05-19

申请号：US14648670

申请日：2014-09-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Liang Sun ,  Ying Wang ,  Tuo Sun ,  Zhanjie Ma ,  Lintao Zhang ,  Lujiang Huangfu

IPC: G09G3/3225 ,  G09G3/3233 ,  G09G3/20

Abstract: There provide a pixel driving circuit and driving method thereof, an array substrate and display apparatus, wherein the pixel driving circuit comprises: a data line; a gate line; a first power supply line; a second power supply line; a light emitting device connected to the second power supply line; a driving transistor connected to the first power supply line; a storage capacitor having a first terminal connected to a gate of the driving transistor and configured to transfer information including the data voltage to the gate of the driving transistor; a resetting unit configured to reset a voltage across the storage capacitor as a predetermined signal voltage; a data writing unit configured to write information including the data voltage into the second terminal of the storage capacitor; a compensating unit configured to write information including a threshold voltage of the driving transistor and information of the first power supply voltage into the first terminal of the storage capacitor; and a light emitting control unit connected to the storage capacitor, the driving transistor and the light emitting device, and configured to control the driving transistor to drive the light emitting device to emit light.

公开(公告)号：US10032988B2

公开(公告)日：2018-07-24

申请号：US14418244

申请日：2014-05-27

Applicant: Boe Technology Group Co., Ltd. ,  JiLin OLED Material Tech Co., Ltd.

Inventor： Na Li ,  Xiaoyu Ma ,  Hui Wang ,  Lujiang Huangfu

IPC: C07C211/31 ,  H01L51/00 ,  C09K11/06 ,  C07C211/61 ,  C07C45/59 ,  C07C46/00 ,  C07C51/00 ,  C09K11/02 ,  H01L51/50

Abstract: The invention discloses an anthracene-containing derivative, the production process thereof and an organic electroluminescent display device, wherein the anthracene-containing derivative has a general molecular structural formula of Formula I, wherein, R1 group is selected from an aromatic group or a fused aromatic group having a carbon atom number of 6 to 18, R2 group is selected from an amine group. By using the above described anthracene-containing derivative as a green phosphorescent host material, a green fluorescent host material, a hole injection material, or a hole transporting material in an organic electroluminescent display device, the light emitting efficiency and the light emitting brightness of the organic electroluminescent display device may be improved.

公开(公告)号：US09946123B2

公开(公告)日：2018-04-17

申请号：US14917200

申请日：2015-07-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lujiang Huangfu ,  Xiaodan Jin ,  Yinan Liang ,  Kelvin Chiang

IPC: H01L29/20 ,  H01L33/00 ,  G02F1/1343 ,  G02F1/1368 ,  H01L27/32

CPC classification number: G02F1/134336 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/1368 ,  G02F2001/134345 ,  G02F2201/52 ,  H01L27/3218

Abstract: The present disclosure provides a pixel arrangement structure, a display panel and a display device. The pixel arrangement structure includes a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels. Each pixel includes one first sub-pixel, each second sub-pixel is shared by at least two adjacent pixels and each third sub-pixel is shared by at least two adjacent pixels. A density of the sub-pixels is 1.5 times larger than a density of the pixels in a first direction of a pixel array, and a density of the sub-pixels is 1.5 times larger than a density of the pixels in a second direction of the pixel array. The first direction is different from the second direction.