公开(公告)号：US20200220112A1

公开(公告)日：2020-07-09

申请号：US15751703

申请日：2017-08-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.

Inventor： Guanyin WEN ,  Lei CHEN ,  Haidong WU ,  Na LI

IPC: H01L51/52 ,  H01L51/56

Abstract: The present disclosure discloses an organic light-emitting diode device, a manufacturing method thereof and a display device. The organic light-emitting diode device comprises: a substrate (100); an organic light-emitting diode layer (200) on a side of the substrate (100); and a barrier layer (510) configured to block ultraviolet rays from entering the organic light-emitting diode layer, wherein the barrier layer is on a side of the organic light-emitting diode layer away from the substrate or on a side of the organic light-emitting diode layer close to the substrate. The organic light-emitting diode device can solve the technical problem of short service life due to the influence of ultraviolet rays in the sunlight.

公开(公告)号：US20200209916A1

公开(公告)日：2020-07-02

申请号：US16624076

申请日：2019-04-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaojin ZHANG ,  Dan WANG ,  Lei CHEN

IPC: G06F1/16 ,  G02B1/14 ,  G09F9/30 ,  H01L51/00 ,  H01L51/56 ,  H01L51/52

Abstract: A display panel includes: a flexible substrate, and the flexible substrate includes an intermediate region and a preset bending region located at at least one side of a periphery of the intermediate region; a display layer located at a side of the flexible substrate; and a transparent cover film layer located at a side of the display layer away from the flexible substrate, and the transparent cover film layer includes a first portion located at a side of the display layer away from the intermediate region, and a second portion located at a side of the display layer away from the preset bending region. The first portion is connected to the second portion, and the thickness of at least partial region of the second portion progressively decreases in a direction away from the first portion.

公开(公告)号：US20200168831A1

公开(公告)日：2020-05-28

申请号：US16617082

申请日：2019-04-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lei CHEN

IPC: H01L51/50 ,  H01L51/00

Abstract: An organic electroluminescent diode, a display panel, a display device and a manufacturing method of an organic electroluminescent diode are provided. The organic electroluminescent diode includes a first electrode, a first electron blocking layer, a light-emitting layer and a second electrode which are stacked arranged in sequence, a surface of the first electron blocking layer in contact with the light-emitting layer is doped with a hole-type non-metallic material. In the embodiment of the present disclosure, by doping the hole-type non-metallic material in the first electron blocking layer, the density of the holes at the recombination interface is increased, the utilization rate of the holes is improved, and the loss of holes in the transmission process is avoided, which ensures that the holes are timely recombined with the transmitted electrons, and avoids the accumulation of too many electrons at the interface between the first electron blocking layer and the light-emitting layer.

公开(公告)号：US20170104171A1

公开(公告)日：2017-04-13

申请号：US15036190

申请日：2015-09-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.

Inventor： Lei CHEN ,  Xiaojin ZHANG ,  Weilin LAI

IPC: H01L51/50 ,  H01L51/56

CPC classification number: H01L51/504 ,  H01L51/0072 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/5076 ,  H01L51/56 ,  H01L2251/558

Abstract: A double-layer doped phosphorescent light emitting device and a fabrication method thereof are provided, and the double-layer doped phosphorescent light emitting device includes a light emitting double-layer, wherein the light emitting double-layer comprises a first light emitting layer and a second light emitting layer, the first light emitting layer and the second light emitting layer each include a host material and a guest material, the host material of the first light emitting layer is a hole type host material and the host material of the second light emitting layer is an electron type host material.

公开(公告)号：US20250081846A1

公开(公告)日：2025-03-06

申请号：US18279218

申请日：2022-11-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Rongrong GAO ,  Dan WANG ,  Lei CHEN ,  Lixia QIU ,  Yuqian SUN

IPC: H10K85/60 ,  H10K50/15 ,  H10K50/18 ,  H10K101/40

Abstract: An organic light emitting device includes an anode, a cathode, and a first hole transport layer and a first light emitting layer arranged between the anode and the cathode, wherein the first hole transport layer is located between the first light emitting layer and the anode; the first hole transport layer at least includes a first hole sublayer and a second hole sublayer; a material of the first hole sublayer includes a first material and a second material, and a material of the second hole sublayer includes at least one of the first material and the second material.

公开(公告)号：US20240431206A1

公开(公告)日：2024-12-26

申请号：US18704947

申请日：2023-05-17

Applicant: Chengdu BOE Optoelectronics Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Xianwen MENG ,  Juncong LI ,  Junming ZHU ,  Lei CHEN

IPC: H10K85/60 ,  C07F5/02 ,  C09K11/06 ,  H10K50/11 ,  H10K101/20

Abstract: A thermally activated delayed fluorescent material and an electroluminescent device. The thermally activated delayed fluorescent material has a structure as shown in the following formula.

公开(公告)号：US20240397745A1

公开(公告)日：2024-11-28

申请号：US18695177

申请日：2023-08-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yang LIU ,  Dan WANG ,  Lei CHEN

IPC: H10K50/19 ,  H10K59/12 ,  H10K59/122 ,  H10K59/35 ,  H10K71/16

Abstract: A light-emitting device includes a first electrode, at least two light-emitting units and a second electrode sequentially stacked in a first direction. The at least two light-emitting units include a first light-emitting unit and a second light-emitting unit. The first light-emitting unit includes a first light-emitting layer. The second light-emitting unit includes a second light-emitting layer. A light-emitting layer of each light-emitting unit includes a first compound, a second compound, and a third compound. An absolute value of a difference between ratios of weights of first compounds in different light-emitting layers to weights of the light-emitting layers to which the first compounds belong is in a range of 0% to 3%, and/or an absolute value of a difference between ratios of weights of second compounds in different light-emitting layers to weights of the light-emitting layers to which the second compounds belong is in a range of 0% to 3%.

公开(公告)号：US20240237510A1

公开(公告)日：2024-07-11

申请号：US17913791

申请日：2021-11-09

Applicant: BOE Technology Group Co., Ltd.

Inventor： Rongrong GAO ,  Lei CHEN

IPC: H10K85/60 ,  H10K50/11 ,  H10K50/16 ,  H10K101/40 ,  H10K101/60

CPC classification number: H10K85/615 ,  H10K85/624 ,  H10K85/626 ,  H10K85/654 ,  H10K85/6574 ,  H10K50/11 ,  H10K50/16 ,  H10K2101/40 ,  H10K2101/60

Abstract: The present disclosure provides an organic light-emitting diode structure and a display device. In the organic light-emitting diode structure, the light-emitting layer, the hole blocking layer and the electron blocking layer satisfy the following conditions: T1 (HBL)>T1 (Host); T1 (EBL)>T1 (Host); T1 (Dopant)>T1 (Host); S1 (Host)>S1 (Dopant); wherein T1 (HBL) is the lowest triplet energy of the hole blocking layer material, T1 (Host) is the lowest triplet energy of the host material, T1 (EBL) is the lowest triplet energy of the electron blocking layer material, T1 (Dopant) is the lowest triplet energy of the guest material, S1 (Host) is the lowest singlet energy of the host material, and S1 (Dopant) is the lowest singlet energy of the guest material.

公开(公告)号：US20230371365A1

公开(公告)日：2023-11-16

申请号：US17426652

申请日：2021-01-26

Applicant: BOE Technology Group Co., Ltd.

Inventor： Kun MA ,  Lei CHEN ,  Dan WANG

IPC: H10K85/60 ,  C09K11/06

CPC classification number: H10K85/633 ,  C09K11/06 ,  H10K85/636 ,  H10K50/181

Abstract: Provided is an organic light emitting device, including a first electrode, a second electrode, and an emitting layer disposed between the first electrode and the second electrode. An electron blocking layer and a hole transport layer are disposed between the emitting layer and the first electrode. The electron blocking layer is located between the hole transport layer and the emitting layer. The material of the electron blocking layer includes a compound having the following structural formula:

公开(公告)号：US20230232651A1

公开(公告)日：2023-07-20

申请号：US17626147

申请日：2021-01-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Rongrong GAO ,  Lei CHEN

IPC: H10K50/18 ,  H10K85/60 ,  H10K85/40 ,  H10K50/15

CPC classification number: H10K50/18 ,  H10K85/654 ,  H10K85/6574 ,  H10K85/40 ,  H10K85/6576 ,  H10K85/658 ,  H10K85/6572 ,  H10K50/181 ,  H10K50/15 ,  H10K2101/30

Abstract: An organic light-emitting device includes: an anode, an emitting layer, and a cathode that are stacked; a first functional material layer located between the emitting layer and the anode; and a second functional material layer located between the emitting layer and the cathode. Under a same test condition, a hole mobility of a material of the first functional material layer is at least ten times an electron mobility of a material of the second functional material layer.