公开(公告)号：US20230413591A1

公开(公告)日：2023-12-21

申请号：US18036153

申请日：2020-11-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yang LIU ,  Xueqin CHEN ,  Yuqian SUN ,  Lixia QIU ,  Dongxu ZHANG

IPC: H10K50/12 ,  H10K50/18 ,  H10K71/60 ,  H10K85/60

CPC classification number: H10K50/12 ,  H10K50/181 ,  H10K71/60 ,  H10K85/633 ,  H10K85/622 ,  H10K85/6574 ,  H10K2101/40

Abstract: An organic light-emitting diode includes: an anode, a cathode and a light-emitting layer between the anode and the cathode. The light-emitting layer has a blue light host material; on the side of the light-emitting layer facing the anode, an electron blocking layer is provided in the direction away from the light-emitting layer; the electron blocking layer has a hole material; and the hole material has a structural formula as shown in the following formula (I), and the blue light host material has a structural formula as shown in the following formula (II).

公开(公告)号：US20220320451A1

公开(公告)日：2022-10-06

申请号：US17512547

申请日：2021-10-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lei CHEN ,  Xueqin CHEN ,  Yuqian SUN

IPC: H01L51/50

Abstract: The present disclosure provides a light emitting device, a display substrate and a display equipment. The light emitting device includes a hole injection layer, a hole transport layer, an electron blocking layer, a light emitting layer and an electron injection layer that are stacked in sequence; the light emitting layer includes a plurality of light emitting units, and the wavelengths of lights emitted by at least two of the plurality of light emitting units are different from each other; a hole mobility of the electron blocking layer is greater than or equal to a hole mobility of the hole injection layer or the hole transport layer; and a square resistance of the hole injection layer and a square resistance of the hole transport layer are both greater than or equal to 5×1010 Ω/sq.

公开(公告)号：US20240298526A1

公开(公告)日：2024-09-05

申请号：US18023000

申请日：2022-04-20

Applicant: BOE Technology Group Co., Ltd.

Inventor： Yang LIU ,  Xueqin CHEN ,  Kun MA

IPC: H10K85/60 ,  C09K11/06 ,  H10K50/11 ,  H10K101/30

CPC classification number: H10K85/633 ,  C09K11/06 ,  H10K85/615 ,  H10K85/626 ,  H10K85/636 ,  H10K85/654 ,  H10K85/657 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  C09K2211/1003 ,  H10K50/11 ,  H10K2101/30

Abstract: A light emitting material includes a host material, the host material comprises a first compound having a structural general Formula I.

公开(公告)号：US20220416175A1

公开(公告)日：2022-12-29

申请号：US17611676

申请日：2020-12-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueqin CHEN ,  Yang LIU

IPC: H01L51/00

Abstract: An organic electroluminescent device, a display panel, a display device, and a light emitting device are described. The organic electroluminescent device includes an anode, an electron blocking layer, a buffer layer, an organic light emitting layer, and a cathode that are sequentially stacked. The thickness of the buffer layer is in a range from 1 nm to 100 nm. The material of the buffer layer comprises a compound shown in a first chemical formula as below: The organic electroluminescence device can improve the life of the device.

公开(公告)号：US20250081722A1

公开(公告)日：2025-03-06

申请号：US18561324

申请日：2023-02-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xueqin CHEN ,  Lei CHEN ,  Dan WANG ,  Lixia QIU

IPC: H10K50/19 ,  H10K50/16 ,  H10K50/18 ,  H10K85/60 ,  H10K101/40 ,  H10K102/00

Abstract: The present disclosure provides a light emitting device and a display panel, and belongs to the field of display technology. The light emitting device includes an anode, a cathode, a plurality of light emitting units between the anode and the cathode, and a charge separation generation unit between every two adjacent light emitting units; the plurality of light emitting units include a first light emitting unit and a second light emitting unit, and the first light emitting unit is closer to the anode than the second light emitting unit; and the first light emitting unit at least includes a first electron transport sub-unit, the second light emitting unit at least includes a second electron transport sub-unit, and a thickness of the first electron transport sub-unit is less than that of the second electron transport sub-unit.

公开(公告)号：US20240315129A1

公开(公告)日：2024-09-19

申请号：US18273262

申请日：2021-12-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lei CHEN ,  Dan WANG ,  Bingyan LIANG ,  Xueqin CHEN ,  Dongxu ZHANG

IPC: H10K85/60 ,  C07D235/18 ,  C07D263/57 ,  C07D277/66 ,  C07D409/14 ,  C07D413/12 ,  C07D413/14 ,  C07D417/14 ,  C09K11/06 ,  H10K50/858

CPC classification number: H10K85/636 ,  C07D235/18 ,  C07D263/57 ,  C07D277/66 ,  C07D409/14 ,  C07D413/12 ,  C07D413/14 ,  C07D417/14 ,  C09K11/06 ,  H10K85/633 ,  C09K2211/1018 ,  H10K50/858 ,  H10K85/615 ,  H10K85/626 ,  H10K85/654 ,  H10K85/657 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576

Abstract: A structural general formula of a diarylamine compound is formula (I):

公开(公告)号：US20210249621A1

公开(公告)日：2021-08-12

申请号：US16767859

申请日：2019-12-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueqin CHEN

IPC: H01L51/50 ,  H01L51/00 ,  H01L51/56

Abstract: The present disclosure provides an OLED display device, a display panel and a manufacturing method of the OLED display device, and belongs to the field of display technology. The OLED display device includes a light-emitting layer, a material of the light-emitting layer includes a host light-emitting material and a carrier balance material doped in the host light-emitting material; and the carrier balance material is used for balancing an electron mobility and a hole mobility of the light-emitting layer.

公开(公告)号：US20240425535A1

公开(公告)日：2024-12-26

申请号：US18703729

申请日：2023-05-18

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lei CHEN ,  Xueqin CHEN ,  Bingyan LIANG ,  Dongxu ZHANG

IPC: C07F9/46 ,  C07F7/08 ,  H10K85/40 ,  H10K85/60

Abstract: A phosphoryl derivative, the use, an organic light-emitting diode, and a display apparatus. A phosphoryl group of the phosphoryl derivative is directly bonded to two substituted or unsubstituted aryl groups, and at least is directly bonded to or is indirectly bonded via a bridge group to a non-conjugated substituent group.

公开(公告)号：US20230329098A1

公开(公告)日：2023-10-12

申请号：US17927498

申请日：2021-11-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xueqin CHEN ,  Yang LIU

IPC: H10K85/60 ,  H10K50/12

CPC classification number: H10K85/657 ,  H10K50/12 ,  H10K85/615

Abstract: A material for forming a blue light-emitting layer, comprising: a main material and a dopant material doped in the main material, wherein there is an overlapping region between the normalized fluorescence emission spectrum of the main material and the normalized absorption spectrum of the dopant material, and the integrated area of the overlapping region is greater than or equal to 50% of the integrated area of the normalized fluorescence emission spectrum of the main material.

公开(公告)号：US20230209855A1

公开(公告)日：2023-06-29

申请号：US17927954

申请日：2021-10-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yang LIU ,  Xueqin CHEN ,  Lixia QIU

IPC: H10K50/12 ,  H10K85/60

CPC classification number: H10K50/121 ,  H10K85/626 ,  H10K85/633 ,  H10K85/636 ,  H10K85/6574 ,  H10K2101/25

Abstract: A light-emitting device includes a light-emitting layer. The light-emitting layer includes a host material. The host material includes a p-type material and an n-type material. The p-type material and the n-type material are configured to form an exciplex. An absolute value of a difference between a wavelength corresponding to a peak of a normalized fluorescence emission spectrum of the exciplex and a wavelength corresponding to a peak of a normalized fluorescence emission spectrum of the n-type material being less than or equal to 5 nm.