公开(公告)号：US11670643B2

公开(公告)日：2023-06-06

申请号：US17500748

申请日：2021-10-13

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni Liu ,  Liang Chen ,  Minghua Xuan ,  Haoliang Zheng ,  Qi Qi ,  Jing Liu

IPC: G09G3/32 ,  G09G3/34 ,  H01L27/12 ,  H01L25/16

CPC classification number: H01L27/124 ,  G09G3/32 ,  G09G3/3446 ,  G09G3/3453 ,  H01L25/167 ,  G09G2300/0426 ,  G09G2300/0465 ,  G09G2300/0809

Abstract: A driving backplane, a display panel and a display device are disclosed. The driving backplane includes: a base substrate; a plurality of pixel driving circuits located on the base substrate; an electrode located on a side of each of the pixel driving circuits facing away from the base substrate and coupled with the pixel driving circuits; and a potential wire located between the electrode and the base substrate and coupled with the pixel driving circuits. Every at least two pixel driving circuits are coupled with a same signal line through a multiplexing controller, an orthographic projection of the controller on the base substrate completely falls into a range of a corresponding micro light emitting diode bonding region, and an orthographic projection of a control wire coupled with the controller on the base substrate completely falls into a range of an orthographic projection of the potential wire on the base substrate.

公开(公告)号：US11663961B2

公开(公告)日：2023-05-30

申请号：US17771739

申请日：2021-05-25

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni Liu

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2310/0267

Abstract: A pixel circuit, a pixel driving method and a display device are provided. The pixel circuit includes a driving circuit, a first light-emitting control circuit and a light-emitting circuit; the light-emitting circuit includes a path control sub-circuit, a first light-emitting sub-circuit, a first light-emitting element, a second light-emitting sub-circuit and a second light-emitting element; a path control sub-circuit controls to write a second data voltage on a second data line into the control terminal, and maintains a potential of the control terminal; a first light-emitting sub-circuit connects the writing node to or disconnects the writing node from the first light-emitting element under the control of the potential of the control terminal; the second light-emitting sub-circuit electrically connects the writing node to or electrically disconnects the writing node from the second light-emitting element under the control of the potential of the control terminal and the second light-emitting control signal.

公开(公告)号：US11616043B2

公开(公告)日：2023-03-28

申请号：US17057351

申请日：2020-02-11

Applicant: BOE Technology Group Co., Ltd.

Inventor： Liang Chen ,  Lei Wang ,  Minghua Xuan ,  Li Xiao ,  Dongni Liu ,  Detao Zhao ,  Hao Chen

IPC: H01L23/00 ,  H01L25/16 ,  H01L33/62

Abstract: A chip transfer method including: disposing a target substrate in a closed cavity, the target substrate including a first alignment bonding structure and a second alignment bonding structure; applying a charge of a first polarity to the first alignment bonding structure of the target substrate; applying a charge of a second polarity to a first chip bonding structure of a chip; injecting an insulating fluid into the closed cavity to suspend the chip in the insulating fluid within the closed cavity; and applying a bonding force to the chip.

公开(公告)号：US11610943B2

公开(公告)日：2023-03-21

申请号：US16916205

申请日：2020-06-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongni Liu ,  Minghua Xuan ,  Li Xiao

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/00

Abstract: The present application relates to the field of display technology, and in particular, to a display panel, method for manufacturing a display panel and display device. The display panel includes: a base substrate; a pixel layer, provided on the base substrate and comprising a plurality of pixel islands; and a microlens layer, provided on a surface of the pixel layer facing away from the base substrate. Each of pixel islands includes a plurality of sub-pixels that emit light of a same color and are seamlessly coupled to each other, and the light emitted by the plurality of sub-pixels in each of the pixel islands is refracted by the microlens layer to be dispersed to different pixel areas.

公开(公告)号：US11538406B2

公开(公告)日：2022-12-27

申请号：US17254069

申请日：2019-11-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jiao Zhao ,  Li Xiao ,  Minghua Xuan ,  Haoliang Zheng ,  Dongni Liu ,  Jing Liu ,  Qi Qi

IPC: G09G3/3225 ,  G09F9/302

Abstract: The present application provides a display substrate, a display panel and a spliced screen, and belongs to the field of display technology. The display substrate in the present application is divided into display and boding regions, and includes a base substrate, and a pixel driving circuit on the base substrate and corresponding to the display region. The display substrate further includes an interlayer insulating layer and a signal lead-in wire on the base substrate. The signal lead-in wire at least includes a first signal lead-in sub-wire on a side of the interlayer insulating layer away from the base substrate. The first signal lead-in sub-wire is connected to a first connection pad in the bonding region for introducing an external signal to the pixel driving circuit. The interlayer insulating layer includes sub-insulating layers defining a multi-stepped structure at a position where the display region is adjacent to the bonding region.

公开(公告)号：US11508294B2

公开(公告)日：2022-11-22

申请号：US17530101

申请日：2021-11-18

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jiao Zhao ,  Seungwoo Han ,  Haoliang Zheng ,  Minghua Xuan ,  Li Xiao ,  Dongni Liu ,  Liang Chen ,  Hao Chen

IPC: G09G3/32

Abstract: The present application provides a pixel circuit, a pixel driving method and a display device. The pixel circuit is to be coupled to a to-be-driven element. The pixel circuit includes a first energy storage circuit, a driving circuit, a light-emitting control circuit, a data writing circuit, and a compensation control circuit. The compensation control circuit is configured to, under control of a third control signal, control conduction between the first node and the first terminal of the driving circuit, and control conduction between the second node and the second terminal of the driving circuit.

公开(公告)号：US11495718B2

公开(公告)日：2022-11-08

申请号：US17265806

申请日：2020-05-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhanfeng Cao ,  Yingwei Liu ,  Ke Wang ,  Dongni Liu ,  Minghua Xuan ,  Guangcai Yuan ,  Lei Chen ,  Xue Dong

IPC: H01L33/62 ,  G09G3/00 ,  G09G3/32

Abstract: The present disclosure provides a driving substrate, a method for preparing the same, and a flexible display device. The driving substrate includes: a base substrate; a first driving function layer arranged on a first surface of the base substrate, the first driving function layer including a plurality of driving thin film transistors and a plurality of signal wirings, and at least one of the plurality of signal wirings being of a single-layer structure and having a thickness greater than a threshold; a pad layer arranged on a surface of the first driving function layer away from the base substrate, the pad layer including a plurality of first pads and a plurality of second pads, and each first pad being connected to a first electrode of the corresponding driving thin film transistor and each second pad being connected to a common electrode line in the plurality of signal wirings.

公开(公告)号：US11424232B2

公开(公告)日：2022-08-23

申请号：US16920771

申请日：2020-07-06

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yingwei Liu ,  Ke Wang ,  Zhiwei Liang ,  Muxin Di ,  Zhanfeng Cao ,  Shuang Liang ,  Guangcai Yuan ,  Qi Yao ,  Dongni Liu

IPC: H01L23/538 ,  H01L25/18 ,  H01L23/00 ,  H01L25/00 ,  H01L25/16

Abstract: Provided are a display structure and a preparation method thereof, and a display apparatus. The display structure includes a flexible back plate and a display substrate which are stacked, the flexible back plate including a bonding electrode for bonding to an integrated circuit chip, and the flexible back plate being bent to form a bent portion on which the bonding electrode is located.

公开(公告)号：US11374032B2

公开(公告)日：2022-06-28

申请号：US16642584

申请日：2019-02-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ming Yang ,  Minghua Xuan ,  Can Zhang ,  Can Wang ,  Han Yue ,  Ning Cong ,  Jiayao Liu ,  Wenqing Zhao ,  Li Xiao ,  Dongni Liu ,  Lei Wang ,  Liang Chen ,  Xiaochuan Chen ,  Shengji Yang ,  Pengcheng Lu

IPC: G02F1/1362 ,  G02F1/1343 ,  G02F1/1368 ,  H01L27/12 ,  G02B30/26 ,  G02F1/1335 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/36

Abstract: There is provided an array substrate including a plurality of pixel regions arranged in rows and columns. The plurality of pixel regions include a corresponding pixel electrode array and a corresponding pixel circuit associated with the corresponding pixel electrode array. Each of the pixel electrode arrays is arranged in rows and columns, and each pixel electrode array includes a plurality of pixel electrodes arranged in an array. The array substrate further includes a plurality of sets of gate lines extending in a row direction and a plurality of sets of data lines extending in a column direction. The plurality of sets of gate lines and rows of the pixel electrode arrays are alternately arranged with each other in the column direction. The plurality of sets of data lines and columns of the pixel regions are alternately arranged with each other in the row direction.

公开(公告)号：US11341920B2

公开(公告)日：2022-05-24

申请号：US17407156

申请日：2021-08-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni Liu ,  Haoliang Zheng ,  Minghua Xuan

IPC: G09G3/3258 ,  G09G3/3291

Abstract: A pixel circuit, a driving method thereof and electronic device, relates to the technical field of display configured for. The pixel circuit comprises a driving sub-circuit comprising a control terminal, a first terminal and a second terminal, the driving sub-circuit being configured to control a driving signal flowing through the first terminal and the second terminal according to a signal of the control terminal; a voltage division control sub-circuit configured to conduct voltage division on an input data signal in response to a first scanning signal to obtain a voltage division signal, and write the voltage division signal to the first terminal of the driving sub-circuit; and a compensation sub-circuit coupled to the control terminal of the driving sub-circuit and the second terminal of the driving sub-circuit, and configured to write voltage division signal passing through driving sub-circuit to control terminal of driving sub-circuit in response to first scanning signal.