公开(公告)号：US20230217822A1

公开(公告)日：2023-07-06

申请号：US18088430

申请日：2022-12-23

申请人： LG Display Co., Ltd.

发明人： Wook Song ,  Ji Cheol Shin ,  Sae Mi Park ,  Myeong Seon Cho ,  Hui Kun Yun ,  Jung Keun Kim ,  Byung Soo Kim

IPC分类号： H10K85/60 ,  H10K50/19 ,  H10K85/30

CPC分类号： H10K85/6572 ,  H10K50/19 ,  H10K85/631 ,  H10K85/636 ,  H10K85/626 ,  H10K85/658 ,  H10K85/342 ,  H10K59/12

摘要： Disclosed is a light emitting device that is capable of reducing lateral leakage current and a driving voltage by improving a structure for connecting a plurality of stacks to one another in a structure using the plurality of stacks, and a light emitting display device including the same. The light emitting device includes a first electrode and a second electrode facing each other, a plurality of stacks provided between the first electrode and the second electrode, and a charge generation layer including an electron generation layer and a hole generation layer stacked between the stacks, wherein the electron generation layer contains a first host of Formula 1 and a metal dopant, and the hole generation layer contains a second host and an organic dopant.

公开(公告)号：US12108659B2

公开(公告)日：2024-10-01

申请号：US16515738

申请日：2019-07-18

申请人： LG Display Co., Ltd. ,  Material Science Co., Ltd.

发明人： Inbum Song ,  Seunghee Yoon ,  Sang-Hoon Hong ,  Hyun Bin Kang ,  Jaemin Ryu

IPC分类号： H01L51/00 ,  C07C211/61 ,  C07D307/91 ,  C07F5/02 ,  C09K11/06 ,  H10K85/30 ,  H10K85/60 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/19 ,  H10K101/10

CPC分类号： H10K85/633 ,  C07C211/61 ,  C07D307/91 ,  C07F5/027 ,  C09K11/06 ,  H10K85/322 ,  H10K85/636 ,  C07C2603/50 ,  C07C2603/52 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1018 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/19 ,  H10K85/622 ,  H10K85/623 ,  H10K85/626 ,  H10K85/6574 ,  H10K2101/10

摘要： Disclosed is an organic electroluminescent device. More specifically, disclosed is an organic electroluminescent device comprising at least one organic layer comprising at least two dopant compounds therein. The electroluminescent device employs both of a boron-based dopant and a pyrene-based dopant to provide improved color characteristics, efficiency and lifespan.

公开(公告)号：US20240324273A1

公开(公告)日：2024-09-26

申请号：US18028346

申请日：2022-04-29

申请人： BOE Technology Group Co., Ltd.

发明人： Qingyu HUANG ,  Zhiqiang JIAO ,  Wenqi LIU

IPC分类号： H10K50/19 ,  H10K50/15 ,  H10K50/16 ,  H10K50/818 ,  H10K50/828 ,  H10K102/00

CPC分类号： H10K50/19 ,  H10K50/15 ,  H10K50/16 ,  H10K50/818 ,  H10K50/828 ,  H10K2102/351

摘要： The present disclosure provides a display apparatus and a display panel. The display panel includes: an anode; a cathode opposed to the anode, where one of the anode and the cathode is a reflection electrode and the other is a transmission electrode; a first light emitter, disposed between the anode and the cathode, where the first light emitter includes a first hole transport layer, a first electron transport layer and a first light-emitting structure, the first hole transport layer is opposed to the first electron transport layer, and the first light-emitting structure is disposed between the first hole transport layer and the first electron transport layer; the first light-emitting structure includes a red light-emitting layer and a first blue light-emitting layer. The present disclosure can improve luminous intensity.

公开(公告)号：US20240268142A1

公开(公告)日：2024-08-08

申请号：US18021733

申请日：2022-04-26

申请人： BOE Technology Group Co., Ltd.

发明人： Wei QUAN

IPC分类号： H10K50/165 ,  H10K50/17 ,  H10K50/19 ,  H10K85/60 ,  H10K102/00

CPC分类号： H10K50/165 ,  H10K50/171 ,  H10K50/19 ,  H10K85/6572 ,  H10K2102/351

摘要： A charge generation layer, an organic electroluminescent device, and an organic light-emitting apparatus. A material of the charge generation layer includes a first electron transport material, a second electron transport material, and a first metal material doped in the first electron transport material and the second electron transport material, and the electron mobility of the first electron transport material is different from that of the second electron transport material.

公开(公告)号：US20240260303A1

公开(公告)日：2024-08-01

申请号：US18347968

申请日：2023-07-06

申请人： HKC CORPORATION LIMITED

发明人： Zhaoyang LU ,  Rongrong LI

IPC分类号： H10K50/19 ,  H05B45/60 ,  H10K59/123

CPC分类号： H10K50/19 ,  H05B45/60 ,  H10K59/123

摘要： A light emitting device includes: a first light emitting unit and a second light emitting unit arranged beneath the first light emitting unit. The first light emitting unit and the second light emitting unit are alternately conducted. The first light emitting unit includes: a first cathode, a first electron transport layer, a first luminescent layer, a first hole transport layer, and a first anode arranged sequentially from bottom to top. The second light emitting unit includes: a second anode, a second hole transport layer, a second luminescent layer, a second electron transport layer, and a second cathode arranged sequentially from bottom to top. The first cathode, the first anode, the second cathode, and the second anode are all connected to AC power supplies, respectively.

公开(公告)号：US20240237391A1

公开(公告)日：2024-07-11

申请号：US18360048

申请日：2023-07-27

申请人： Samsung Display Co., Ltd.

发明人： Jongwon Lee ,  Seungcheol Kim ,  Heungsu Park ,  Changmin Lee ,  Hyunshik Lee

IPC分类号： H10K50/19 ,  H10K50/13

CPC分类号： H10K50/19 ,  H10K50/131 ,  H10K2102/351

摘要： A tandem light-emitting device including a first electrode, a second electrode facing the first electrode, m light-emitting units stacked between the first electrode and the second electrode, the m light-emitting units each including an emission layer, and m−1 charge generation layers between two adjacent light-emitting units of the m light-emitting units. M is an integer of 5 or more. The m light-emitting units include first to fifth light-emitting units, in order of proximity to the first electrode. The m−1 charge generation layers include first to fourth charge generation layers, in order of proximity to the first electrode. At least one of the first to fifth light-emitting units emits blue light. At least one of the first to fifth light-emitting units emits green light. The formula 3≤D/(2*λb)≤ 4 is satisfied.

公开(公告)号：US20240224734A1

公开(公告)日：2024-07-04

申请号：US18555903

申请日：2022-04-12

申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

发明人： Yasuhiro JINBO ,  Toshikazu OHNO ,  Shiyuu NUMATA

IPC分类号： H10K59/80 ,  H10K50/19 ,  H10K71/60

CPC分类号： H10K59/874 ,  H10K50/19 ,  H10K71/60

摘要： A highly reliable display apparatus is provided. The display apparatus includes a first light-emitting device, a second light-emitting device, and an inorganic insulating layer. The first light-emitting device includes a first pixel electrode, a first light-emitting layer over the first pixel electrode, and a common electrode over the first light-emitting layer. The second light-emitting device includes a second pixel electrode, a second light-emitting layer over the second pixel electrode, and the common electrode over the second light-emitting layer. The inorganic insulating layer covers side surfaces of the first pixel electrode, the second pixel electrode, the first light-emitting layer, and the second light-emitting layer. The hydrogen concentration and the carbon concentration in the inorganic insulating layer are each preferably sufficiently low.

公开(公告)号：US20240224706A1

公开(公告)日：2024-07-04

申请号：US18563066

申请日：2022-05-17

申请人： Semiconductor Energy Laboratory Co., Ltd.

发明人： Daisuke KUBOTA ,  Kenichi OKAZAKI ,  Koji KUSUNOKI

IPC分类号： H10K59/65 ,  H10K50/19 ,  H10K59/38

CPC分类号： H10K59/65 ,  H10K50/19 ,  H10K59/38

摘要： A display apparatus having an image capturing function is provided. A display apparatus or an image capturing with a high aperture ratio is provided. The display apparatus includes a light-emitting element and a light-receiving element. A first pixel electrode, a first organic layer, and a common electrode are stacked in this order in the light-emitting element. A second pixel electrode, a second organic layer, and the common electrode are stacked in this order in the light-receiving element. The second organic layer includes a photoelectric conversion layer. A first layer and a second layer are included in a region between the first light-emitting element and the light-receiving element. The first layer overlaps with the second organic layer and contains a material the same as a material of the first organic layer. The second layer overlaps with the first organic layer and contains a material the same as a material of the second organic layer. An end portion of the first organic layer and an end portion of the first layer face each other in the region between the light-emitting element and the light-receiving element. An end portion of the second organic layer and an end portion of the second layer face each other in the region between the light-emitting element and the light-receiving element.

公开(公告)号：US20240215290A1

公开(公告)日：2024-06-27

申请号：US18396801

申请日：2023-12-27

申请人： Semiconductor Energy Laboratory Co., Ltd.

发明人： Hiromi NOWATARI ,  Satoshi SEO ,  Nobuharu OHSAWA ,  Takahiro USHIKUBO ,  Tetsuo TSUTSUI

IPC分类号： H10K50/13 ,  B82Y10/00 ,  H10K50/11 ,  H10K50/19 ,  H10K85/20 ,  H10K85/30 ,  H10K85/60 ,  H10K101/40

CPC分类号： H10K50/13 ,  B82Y10/00 ,  H10K50/11 ,  H10K50/131 ,  H10K50/19 ,  H10K85/221 ,  H10K85/324 ,  H10K85/615 ,  H10K85/621 ,  H10K85/626 ,  H10K85/633 ,  H10K85/636 ,  H10K85/6572 ,  H10K2101/40

摘要： An object is to provide a light-emitting element capable of emitting light with a high luminance even at a low voltage, and having a long lifetime. The light-emitting element includes n EL layers between an anode and a cathode (n is a natural number of two or more), and also includes, between m-th EL layer from the anode and (m+1)-th EL layer (m is a natural number, 1≤m≤n−1), a first layer including a first donor material in contact with the m-th EL layer, a second layer including an electron-transport material and a second donor material in contact with the first layer, and a third layer including a hole-transport material and an acceptor material in contact with the second layer and the (m+1)-th EL layer.

公开(公告)号：US12016194B2

公开(公告)日：2024-06-18

申请号：US17203683

申请日：2021-03-16

申请人： Samsung Display Co., LTD.

发明人： Cheol Eon Park ,  Eung Seok Park ,  Yong Tack Kim

IPC分类号： H10K50/844 ,  H10K50/842 ,  H10K59/131 ,  H10K59/38 ,  H10K50/13 ,  H10K50/19 ,  H10K59/122 ,  H10K59/124

CPC分类号： H10K50/844 ,  H10K50/8426 ,  H10K59/131 ,  H10K59/38 ,  H10K50/131 ,  H10K50/19 ,  H10K59/122 ,  H10K59/124

摘要： A display device includes a first base on which a display area and a non-display area are defined; a first support member disposed on the first base and located in the non-display area; a light emitting element disposed on the first base and located in the display area; an encapsulation layer which disposed on the light emitting element; a second base disposed on the encapsulation layer; a color filter disposed between the second base and the encapsulation layer, where the color filter overlaps the light emitting element; a wavelength conversion pattern disposed on the color filter; and a sealing member disposed between the first base and the second base and located in the non-display area, where the sealing member is located between the display area and the first support member and overlaps the encapsulation layer.