公开(公告)号：US20200127060A1

公开(公告)日：2020-04-23

申请号：US16330925

申请日：2018-08-01

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yansong Li ,  Haidong Wu

IPC: H01L27/32

Abstract: The present disclosure is related to a pixel arrangement structure. The pixel arrangement structure may include a plurality of first repeating units and a plurality of second repeating units alternately arranged in both a first direction and a second direction. Each of the plurality of the first repeating units may comprise a first sub-pixel or a second sub-pixel, and each of the plurality of the second repeat units may comprise a third sub-pixel or a second sub-pixel. Second sub-pixels may be uniformly distributed in an array. At least some of first sub-pixels have a shape of a concave polygon, and at least some of third sub-pixels have a shape of a convex polygon.

公开(公告)号：US09859349B2

公开(公告)日：2018-01-02

申请号：US14913037

申请日：2015-07-31

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yansong Li ,  Na Li ,  Li Sun

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

CPC classification number: H01L27/3258 ,  H01L27/32 ,  H01L27/3246 ,  H01L51/0014 ,  H01L51/0021 ,  H01L51/5228 ,  H01L51/5234 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/53 ,  H01L2251/5315 ,  H01L2251/558

Abstract: The present disclosure provides an organic electroluminescent display substrate and a manufacturing method thereof, and a display device. The organic electroluminescent display substrate includes a base substrate and a plurality of pixel units formed on the base substrate, the pixel unit including a light-emitting region and a non-light-emitting region. An organic electroluminescent structure is formed in the light-emitting region, the organic electroluminescent structure including a first electrode layer, an organic luminescent functional layer and a second electrode layer stacked on the base substrate, the second electrode layer including a first portion in the light-emitting region and a second portion in the non-light-emitting region, and a plurality of organic/inorganic material layers are provided between the second electrode layer and the base substrate, the plurality of organic/inorganic material layers including at least the organic luminescent functional layer in the light-emitting region and including a transparent material layer in the non-light-emitting regions of parts of pixel units.

公开(公告)号：US09825106B2

公开(公告)日：2017-11-21

申请号：US15244930

申请日：2016-08-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yansong Li ,  Xiaowei Xu ,  Liangjian Li

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

CPC classification number: H01L27/3246 ,  H01L51/5271 ,  H01L51/56

Abstract: The present disclosure discloses an OLED display substrate and a manufacturing method thereof, and a display apparatus. The OLED display substrate is a top emitting OLED display substrate, and comprises a reflective layer covering side surfaces of a pixel defining layer, thus the reflective layer and a first electrode of the OLED form a reflective cup which increases the reflection of light emitted from the OLED.

公开(公告)号：US09716235B2

公开(公告)日：2017-07-25

申请号：US14361699

申请日：2013-11-06

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Na Li ,  Yansong Li ,  Lujiang Huangfu

IPC: H01L51/54 ,  C09K11/06 ,  H01L51/00 ,  C07D239/26 ,  C07C249/02 ,  H01L51/50 ,  H01L51/52

CPC classification number: H01L51/0067 ,  C07C249/02 ,  C07D239/26 ,  C09K11/06 ,  C09K2211/1074 ,  H01L51/0052 ,  H01L51/5012 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5096 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5231

Abstract: The invention relates to organic electroluminescent materials and provides 9,10-bis[2-(p-substituted phenyl)pyrimidin-4-yl] anthracene compounds and methods of preparing the same, organic electroluminescent devices comprising the compounds, and organic electroluminescent display apparatus comprising the devices. The compounds of the invention are easy to be synthesized and can be used as blue-phosphorescent organic electroluminescent materials. Due to the inherent ability of the materials to block holes, there is no need to arrange a hole-blocking layer between a light-emitting layer and an electron transport layer, which simplifies the manufacturing process of full color display panels of organic electroluminescent display apparatus and reduces the manufacture cost and time. The organic electroluminescent devices made from the materials exhibit high luminous efficiency.

公开(公告)号：US12178060B2

公开(公告)日：2024-12-24

申请号：US17536801

申请日：2021-11-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaobo Du ,  Haidong Wu ,  Yansong Li ,  Bei Wang

IPC: H10K50/11 ,  H10K50/17 ,  H10K71/00 ,  H10K101/30 ,  H10K101/40 ,  H10K102/00

Abstract: An electroluminescent device, a method for manufacturing the electroluminescent device, a display panel and a display device are provided in the embodiments of the present application. The electroluminescent device includes an anode layer, a first hole injection layer and a hole transport layer. The first hole injection layer is located between the anode layer and the hole transport layer; the first hole injection layer includes at least two secondary hole injection layers, and an equivalent resistance value of the at least two secondary hole injection layers is greater than a first threshold value.

公开(公告)号：US20240292719A1

公开(公告)日：2024-08-29

申请号：US18025992

申请日：2022-04-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cheng Han ,  Xing Fan ,  Qixiao Wu ,  Songquan Wu ,  Yanming Wang ,  Xu Li ,  Yansong Li

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/122

CPC classification number: H10K59/879 ,  H10K59/1201 ,  H10K59/122

Abstract: Provided are a display panel and a manufacturing method thereof, and a display device. The display panel includes: a base substrate; a pixel defining layer on one side of the base substrate and having a plurality of first openings for defining a plurality of sub-pixels, the plurality of first openings being in one-to-one correspondence to the plurality of sub-pixels; and an encapsulation layer on one side of the pixel defining layer away from the base substrate. The encapsulation layer includes: a first inorganic layer; a second inorganic layer on one side of the first inorganic layer away from the base substrate; an organic layer between the first inorganic layer and the second inorganic layer; and at least one first optical structure between the first inorganic layer and the organic layer. A refractive index of each first optical structure is greater than that of the organic layer.

公开(公告)号：US20240292649A1

公开(公告)日：2024-08-29

申请号：US18020714

申请日：2022-03-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xiaobo Du ,  Haidong Wu ,  Yansong Li

IPC: H10K50/17 ,  H10K50/155 ,  H10K50/165 ,  H10K71/10 ,  H10K85/10 ,  H10K85/30 ,  H10K85/60 ,  H10K101/30 ,  H10K101/40 ,  H10K102/00

CPC classification number: H10K50/171 ,  H10K50/155 ,  H10K50/165 ,  H10K71/10 ,  H10K85/111 ,  H10K85/371 ,  H10K85/633 ,  H10K85/6572 ,  H10K85/6574 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2102/351

Abstract: A light-emitting device includes at least one light-emitting unit including a luminescent layer, an electron functional layer and a hole functional layer; a material of the luminescent layer includes host materials and guest materials, the host materials include hole transport materials and electron transport materials; a material of the electron functional layer is the same as the electron transport materials, and a material of the hole functional layer is the same as the hole transport materials; an energy value HOMOA of a highest occupied molecular orbital of the hole transport materials and an energy value HOMOB of a highest occupied molecular orbital of the electron transport materials satisfy: HOMOA−HOMOB>0.2 eV; and an energy value LUMOA of a lowest unoccupied molecular orbital of the hole transport materials and an energy value LUMOB of a lowest unoccupied molecular orbital of the electron transport materials satisfy: LUMOA−LUMOB>0.2 eV.

公开(公告)号：US11568794B2

公开(公告)日：2023-01-31

申请号：US17315706

申请日：2021-05-10

Applicant: BOE Technology Group Co., Ltd.

Inventor： Haohan Zhang ,  Yue Liu ,  Zhihui Xiao ,  Shanshan Bai ,  Yansong Li

IPC: G09G3/32 ,  H01L27/32 ,  H01L51/56 ,  G09G3/20

Abstract: Disclosed are a pixel arrangement structure, a metal mask, and a display device, and in the pixel arrangement structure, each repeating element includes four sub-pixels of three sub-pixel types distributed in two columns, and at least two of the sub-pixels comprise two sub-pixel components respectively.

公开(公告)号：US11545527B2

公开(公告)日：2023-01-03

申请号：US16330919

申请日：2018-08-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yue Liu ,  Yansong Li ,  Haohan Zhang ,  Shanshan Bai ,  Haidong Wu

IPC: H01L27/32 ,  H01L51/00 ,  G09G3/3208

Abstract: A pixel arrangement structure may include a plurality of repeating units (100). Each of the plurality of the repeating units (100) may include a first sub-pixel (01) being at a center point of a virtual hexagon and second sub-pixels (02) and third sub-pixels (03) being alternately arranged at vertices of the virtual hexagon. Virtual hexagons of adjacent repeating units may share one common side as well as two sub-pixels on the common side.

公开(公告)号：US10998532B2

公开(公告)日：2021-05-04

申请号：US16196276

申请日：2018-11-20

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yansong Li ,  Haidong Wu

IPC: H01L51/56 ,  H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  H01L51/00

Abstract: A display substrate, a manufacturing method thereof, and a display device are provided. The display substrate includes: a base substrate; an anode conductive layer; a cathode conductive layer, wherein the cathode conductive layer and the anode conductive layer are at a same side in a thickness direction of the base substrate; and an organic functional layer between the anode conductive layer and the cathode conductive layer, wherein the display substrate comprises first sub-pixel units and second sub-pixel units that are different in color category, the organic functional layer in the first sub-pixel units comprises a first light-emitting layer, the organic functional layer in the second sub-pixel units comprises the first light-emitting layer, a first electron blocking layer and a second light-emitting layer that are sequentially laminated in a direction away from the anode conductive layer, and a light-emitting color of the first light-emitting layer is different from a light-emitting color of the second light-emitting layer.