公开(公告)号：US11670213B2

公开(公告)日：2023-06-06

申请号：US17613985

申请日：2020-12-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lijun Yuan ,  Can Zhang ,  Ning Cong ,  Can Wang ,  Jinfei Niu ,  Minghua Xuan

IPC: G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/2074 ,  G09G3/3233 ,  G09G3/2003 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2330/021

Abstract: A display panel includes: a plurality of light emitting signal lines. Under a control of switching signals provided from a plurality of switching signal lines and control signals provided from a plurality of control signal lines, working gray scale level signals corresponding to respective display gray scales are written to corresponding sub-pixels in an order from small to large in working gray scale sequentially by a plurality of times in one frame display time through the plurality of light emitting signal lines. Different working gray scale level signals indicate have different durations, and each of the working gray scale level signals is provided to the organic light emitting diode via the second transistor through a light emitting signal line, and a final display gray scale is a gray scale caused by superimposing different working gray scale level signals.

公开(公告)号：US20230069670A1

公开(公告)日：2023-03-02

申请号：US17778540

申请日：2021-06-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wei Li ,  Can Wang ,  Can Zhang ,  Li Xiao ,  Minghua Xuan ,  Lijun Yuan ,  Jinfei Niu ,  Jingjing Zhang ,  Guangcai Yuan

IPC: H01L25/16

Abstract: A display substrate, including: a base substrate including at least a side edge and a display area; a plurality of pixel units disposed in the display area, a second pixel unit is located on a side of a first pixel unit close to the side edge, edges of the second pixel unit include the side edge, a third pixel unit is located between the first pixel unit and the second pixel unit, and the third pixel unit is adjacent to the second pixel unit; and a plurality of light emitting diode chips disposed on the base substrate a first light emitting diode chip is located in the first pixel unit, a part of a second light emitting diode chip is located in the second pixel unit, and the other part of the second light emitting diode chip is located in the third pixel unit.

公开(公告)号：US11515361B2

公开(公告)日：2022-11-29

申请号：US16825922

申请日：2020-03-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Wang ,  Xiaochuan Chen ,  Minghua Xuan ,  Can Zhang ,  Angran Zhang

IPC: H01L27/32 ,  H01L27/15 ,  H01L51/52

Abstract: The present disclosure provides a light emitting device and a method for manufacturing the same, and a display device. The light emitting device includes a plurality of light emitting units including a red light emitting unit, a green light emitting unit, and a blue light emitting unit, each light emitting unit including a micro-cavity structure. The light emitting device includes an anode structure, a cathode and a functional layer therebetween. The functional layer includes a light emitting layer including a red light emitting layer at least partially located in the red light emitting unit, an orthographic projection of the red light emitting layer on the backplane not overlapping with that of the blue light emitting unit on the backplane; a green light emitting layer at least partially located in the green light emitting unit; and a blue light emitting layer at least partially located in the blue light emitting unit.

公开(公告)号：US11475864B2

公开(公告)日：2022-10-18

申请号：US17050380

申请日：2020-04-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Zhang ,  Han Yue ,  Minghua Xuan

IPC: G09G5/10 ,  G09G3/32 ,  H01L25/16 ,  H01L27/12 ,  H01L31/0232 ,  H01L31/105 ,  H01L33/62

Abstract: A display panel, a method of manufacturing the display panel, a method of driving the display panel and a display device are provided. The display panel includes an array substrate and a plurality of micro light-emitting diodes arranged on the array substrate, and further includes: a photoelectric conversion structure in a one-to-one correspondence with a micro light-emitting diode, the photoelectric conversion structure is located on a side of the corresponding micro light-emitting diode facing the array substrate, connected to the corresponding micro light-emitting diode, and configured to convert a received light signal emitted by the micro light-emitting diode into an electrical signal, and charge the corresponding micro light-emitting diode by using the electrical signal. The display panel is used for display.

公开(公告)号：US11417272B2

公开(公告)日：2022-08-16

申请号：US16763219

申请日：2019-11-01

Applicant: BOE Technology Group Co., Ltd.

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

IPC: G09G3/3233 ,  G09G3/00 ,  G09G3/3291

Abstract: A pixel circuit and driving method are provided. The pixel circuit includes a light emitting device having a first terminal and a second terminal; a driving circuit, electrically connected to the first terminal of the light emitting device, for providing power to the light emitting device; a voltage comparator for generating a pulse width modulated signal having a duty cycle based on a data voltage and a reference voltage; an offset voltage detecting circuit, electrically connected to an output terminal of the voltage comparator, for detecting an input offset voltage of the voltage comparator; and a data voltage compensation circuit, electrically connected to the offset voltage detecting circuit, for compensating the data voltage according to the input offset voltage detected.

公开(公告)号：US11342376B2

公开(公告)日：2022-05-24

申请号：US16905933

申请日：2020-06-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Can Zhang

IPC: H01L27/15 ,  H01L33/40 ,  H01L33/62

Abstract: Provided are a light emitting diode, a display substrate and a transfer method. The transfer method includes: preparing a transfer substrate and the display substrate respectively, wherein the transfer substrate includes a plurality of light emitting diodes arranged in a matrix; aligning the transfer substrate with the display substrate, wherein first magnetic layers of the light emitting diodes on the transfer substrate correspond to second magnetic layers of the sub-pixels on the display substrate one by one; and driving the transfer substrate to approach the display substrate, so that the light emitting diodes on the transfer substrate are positioned to fall onto the sub-pixels of the display substrate by action of magnetic attraction forces generated by the first magnetic layers and the second magnetic layers.

公开(公告)号：US11322724B2

公开(公告)日：2022-05-03

申请号：US16494443

申请日：2019-02-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Zhang ,  Can Wang

IPC: H01L29/08 ,  H01L51/52 ,  H01L27/32 ,  H01L51/56

Abstract: The present disclosure relates to the field of display, and specifically provides a display substrate, a fabricating method thereof, and a corresponding display device. The display substrate includes a first transparent electrode and a second reflective electrode opposite to each other, a light emitting layer between the first transparent electrode and the second reflective electrode, an organic material layer on a side of the first transparent electrode away from the light emitting layer, and a transflective layer on a side of the organic material layer away from the light emitting layer.

公开(公告)号：US11315479B2

公开(公告)日：2022-04-26

申请号：US16610007

申请日：2019-02-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/32

Abstract: An array substrate including a plurality of pixel units arranged in a matrix is provided. Each pixel unit at least includes a first sub-pixel, a second sub-pixel and a third sub-pixel that emit light of different colors, the first sub-pixel has a lower luminous efficiency than the second and third sub-pixels. The array substrate further comprises a plurality of first gate lines and a plurality of second gate lines that correspond to respective rows of pixel units of the plurality of pixel units. The first sub-pixel in each row of pixel units of the plurality of pixel units is coupled to a first gate line of the plurality of first gate lines, and the second sub-pixel and the third sub-pixel in the row of pixel units of the plurality of pixel units are both coupled to a second gate line of the plurality of second gate lines.

公开(公告)号：US11283052B2

公开(公告)日：2022-03-22

申请号：US16326463

申请日：2018-02-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Wang ,  Xiaochuan Chen ,  Minghua Xuan ,  Can Zhang ,  Ming Yang ,  Han Yue

IPC: H01L29/08 ,  H01L51/52 ,  H01L51/56 ,  H01L27/32

Abstract: A display panel and a method for manufacturing the display panel are provided. The display substrate includes a plurality of sub-pixels; an anti-reflection layer provided on a light-exiting side of the display panel at positions respectively corresponding to the sub-pixels; a dielectric layer provided between the sub-pixels and the anti-reflection layer; the anti-reflection layer has a thickness enabling a first light and a second light to be not in-phase; the first light is a portion of ambient light reflected by a surface of the anti-reflection layer away from the sub-pixel; the second light is a portion of the ambient light sequentially refracted by and passing through the surface of the anti-reflection layer away from the sub-pixel, entering the anti-reflection layer, reflected by an interface between the anti-reflection layer and the dielectric layer, refracted by the surface of the anti-reflection layer away from the sub-pixel and entering environment.

公开(公告)号：US11271065B2

公开(公告)日：2022-03-08

申请号：US16512924

申请日：2019-07-16

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ming Yang ,  Minghua Xuan ,  Can Zhang ,  Can Wang ,  Han Yue ,  Ning Cong ,  Jiayao Liu

IPC: G09G3/3233 ,  H01L27/32 ,  H01L27/24 ,  H01L51/52 ,  G09G3/3208

Abstract: The embodiments of the present application provide a display substrate, a light field display apparatus, and a method for driving the same. The display substrate includes: a base substrate; a light emitting block on the base substrate, wherein the light emitting block comprises a plurality of first light emitting units, and each of the first light emitting units comprises a plurality of first light emitting points which are located at a plurality of predetermined positions in the first light emitting unit respectively; and first driving leads each electrically connected to first light emitting points located at the same predetermined positions in the respective first light emitting units and configured to receive a first driving signal from a driving circuit.