公开(公告)号：US20220140047A1

公开(公告)日：2022-05-05

申请号：US17258762

申请日：2020-03-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhijian ZHU ,  Yu AO ,  Yunlong LI ,  Pengcheng LU ,  Yuanlan TIAN

IPC: H01L27/32

Abstract: A display panel includes a drive backplane, a transparent insulating layer and a light-emitting device layer. The drive backplane includes a driving circuit layer, a metal wiring layer, a first insulating layer and a reflective electrode layer. The first insulating layer has first via holes filled with first metal connectors. The reflective electrode layer includes first reflective electrodes respectively connected with the metal wiring layer through the first metal connectors. The light-emitting device layer includes a pixel electrode layer, an organic light-emitting layer and a common electrode layer. The pixel electrode layer includes first pixel electrodes respectively connected with the first reflective electrodes through the connection via holes. A distance between an orthographic projection of the connection via hole on the pixel electrode layer and an edge of the first pixel electrode is not less than a first threshold value.

公开(公告)号：US20220140021A1

公开(公告)日：2022-05-05

申请号：US17260562

申请日：2020-03-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yunlong LI ,  Pengcheng LU ,  Yu Ao ,  Zhijian ZHU ,  Yuanlan TIAN ,  Dacheng ZHANG

IPC: H01L27/32 ,  H01L23/544 ,  H01L51/00 ,  H01L51/52 ,  H01L51/56

Abstract: A display substrate, a manufacturing method thereof and a display apparatus are disclosed. The display substrate includes a silicon base substrate and a color film layer disposed on the silicon base substrate. A plurality of metal traces for connecting a display area and a cathode ring with a bonding area respectively are contained in the silicon base substrate. The color film layer includes a first align mark, and the first align mark has a hollowed-out structure. A projection of the first align mark on the silicon base substrate and projections of the metal traces on the silicon base substrate include overlapping areas.

公开(公告)号：US20220130330A1

公开(公告)日：2022-04-28

申请号：US17257843

申请日：2020-03-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Zhijian ZHU ,  Yu AO ,  Pengcheng LU

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283 ,  H01L27/32 ,  H01L51/00 ,  H01L51/56

Abstract: A display substrate, a display method and a display device are disclosed. The display substrate includes a display region and an offset region surrounding the display region. The display substrate includes a silicon-based substrate, an emitting structure layer arranged on the silicon-based substrate. The first pixel driving circuits are connected with the emitting structure layer of the display region, and at least part of the first pixel driving circuits are configured to provide driving signals for the emitting structure layer electrically connected with the first pixel driving circuits during normal display. The second pixel driving circuits are connected with the emitting structure layer of the offset region, and at least part of the second pixel driving circuits are configured to provide no driving signals for the emitting structure layer electrically connected with the second pixel driving circuits during normal display.

公开(公告)号：US20220102669A1

公开(公告)日：2022-03-31

申请号：US17423865

申请日：2021-01-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Li LIU ,  Pengcheng LU ,  Shengji YANG ,  Kui ZHANG ,  Rongrong SHI ,  Chao PU

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

Abstract: This disclosure relates to an organic electroluminescent structure and a fabrication method thereof, and a display device. The organic electroluminescent structure includes a base substrate; an anode layer formed on the base substrate, in which the anode layer comprises a plurality of anodes arranged at intervals; an organic light-emitting functional layer having a hole injection layer, in which the hole injection layer includes a plurality of hole injection blocks arranged at intervals, and each of the hole injection blocks is correspondingly formed on the second surface of one of the anodes; and a cathode layer formed at a side of the organic light-emitting functional layer facing away from the anode layer.

公开(公告)号：US20210407418A1

公开(公告)日：2021-12-30

申请号：US16959858

申请日：2019-08-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shengji YANG ,  Xiaochuan CHEN ,  Hui WANG ,  Kuanta HUANG ,  Pengcheng LU

IPC: G09G3/3258 ,  H01L51/52 ,  H01L27/32

Abstract: A display substrate and a display panel are provided. The display substrate includes a base substrate, and the base substrate includes a display region, a sensing region, and a dummy region; a plurality of sensing pixel units including a first light emitting element and a first pixel circuit are provided in the sensing region, and the first pixel circuit controls a voltage sensor to sense a voltage at a first terminal of the first light emitting element; a plurality of display pixel units including a second pixel circuit and a second light emitting element are provided in the display region; a plurality of dummy pixel units including a third pixel circuit and a third light emitting element are provided in the dummy region; and the first light emitting element, the second light emitting element, and the third light emitting element are all connected to a common voltage terminal.

公开(公告)号：US20210375203A1

公开(公告)日：2021-12-02

申请号：US16484983

申请日：2019-01-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Liang CHEN ,  Lei WANG ,  Dongni LIU ,  Li XIAO ,  Xiaochuan CHEN ,  Minghua XUAN ,  Shengji YANG ,  Pengcheng LU ,  Detao ZHAO ,  Ning CONG

IPC: G09G3/3233 ,  G09G3/20

Abstract: A display panel and a driving method thereof, and a display device are disclosed. The display panel includes a plurality of sub-pixel unit groups arranged in an array, the array includes a plurality of rows and a plurality of columns, each of the sub-pixel unit groups includes N sub-pixel units disposed along a column direction and a pixel driving circuit each of the N sub-pixel units includes a light-emitting circuit the pixel driving circuit is electrically connected to the light-emitting circuits of the N sub-pixel units, and the pixel driving circuit is configured to provide light-emitting driving currents to the light-emitting circuits of the N sub-pixel units.

公开(公告)号：US20210358412A1

公开(公告)日：2021-11-18

申请号：US16470443

申请日：2018-12-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guohong QIN ,  Xiaochuan CHEN ,  Shengji YANG ,  Pengcheng LU ,  Weihai WANG ,  Rongrong SHI

IPC: G09G3/3258 ,  G09G3/3291

Abstract: A pixel circuit, a driving method thereof and a display panel are disclosed. The pixel circuit includes a data writing circuit, a light-emitting drive circuit, and a voltage amplification circuit; the data writing circuit is electrically connected with a first node and is configured to write a data signal to the first node under control of a scan signal; two ends of the voltage amplification circuit are electrically connected with the first node and a second node respectively, and the voltage amplification circuit are configured to obtain an amplified voltage signal based on the data signal and write the amplified voltage signal to the second node; and the light-emitting drive circuit is electrically connected with the second node and is configured to drive a light-emitting component to emit light under control of the amplified voltage signal.

公开(公告)号：US20210335215A1

公开(公告)日：2021-10-28

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：US20210327976A1

公开(公告)日：2021-10-21

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 comprising 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 for driving is configured to drive the display panel.

公开(公告)号：US20210305535A1

公开(公告)日：2021-09-30

申请号：US17258614

申请日：2020-03-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Kui ZHANG ,  Li LIU ,  Pengcheng LU ,  Yunlong LI ,  Dacheng ZHANG

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

Abstract: The present disclosure provides a display panel, a method for preparing the same, and a display device. The display panel includes: a display substrate, including a base substrate, a driving transistor embedded on the base substrate, and a first electrode layer located on the base substrate; an encapsulation protection structure located on the display substrate and surrounding a display area of the display substrate; a light emitting layer located on a surface of the first electrode layer away from the base substrate; a second electrode layer located on a surface of the light emitting layer away from the base substrate; and a first encapsulation layer located on a surface of the second electrode layer away from the base substrate.