公开(公告)号：US11895908B2

公开(公告)日：2024-02-06

申请号：US17713931

申请日：2022-04-05

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takahiro Ishisone ,  Shunsuke Hosoumi ,  Tatsuyoshi Takahashi ,  Satoshi Seo

IPC: H10K85/60 ,  H10K50/11 ,  H10K50/19 ,  H10K101/00

CPC classification number: H10K85/611 ,  H10K50/11 ,  H10K50/19 ,  H10K2101/90

Abstract: A light-emitting element containing a fluorescent material and having high emission efficiency is provided. The light-emitting element contains the fluorescent material and a host material. The host material contains a first organic compound and a second organic compound. The first organic compound and the second organic compound can form an exciplex. The proportion of a delayed fluorescence component in light emitted from the exciplex is higher than or equal to 5%, and the delayed fluorescence component contains a delayed fluorescence component whose fluorescence lifetime is 10 ns or longer and 50 μs or shorter.

公开(公告)号：US11889757B2

公开(公告)日：2024-01-30

申请号：US16523902

申请日：2019-07-26

Applicant: LG Display Co., Ltd.

Inventor： Bo-Min Seo ,  Dae-Wi Yoon ,  Jun-Yun Kim ,  Chun-Ki Kim ,  Mi-Sang Yoo

IPC: H10K85/60 ,  H10K85/40 ,  H10K50/11 ,  H10K50/13 ,  H10K50/18 ,  H10K50/81 ,  H10K50/82 ,  H10K101/10 ,  H10K101/00

CPC classification number: H10K85/6572 ,  H10K85/40 ,  H10K85/654 ,  H10K85/6574 ,  H10K50/11 ,  H10K50/13 ,  H10K50/18 ,  H10K50/81 ,  H10K50/82 ,  H10K2101/10 ,  H10K2101/27

Abstract: An organic light emitting diode comprises an emitting material layer implementing a delayed fluorescence and another emitting material layer disposed adjacently to the emitting material layer and implementing fluorescence or phosphorescence and an organic light emitting device including the diode. As exciton generated in the plural emitting material layer drops to a ground state through the luminous materials each of which has a controlled energy level, it is possible to implement excellent luminous efficiency derived from a delayed fluorescent material and improved color purity derived from a fluorescent or phosphorescent material having narrow FWHM.

公开(公告)号：US11856850B2

公开(公告)日：2023-12-26

申请号：US16640082

申请日：2018-09-21

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Bitnari Kim ,  Su-Hyun Lee ,  So-Young Jung ,  Hyo-Soon Park ,  Tae-Jun Han ,  Young-Jun Cho ,  Sang-Hee Cho

IPC: H10K85/60 ,  C07D239/74 ,  C07D241/42 ,  C07D251/24 ,  C07D487/04 ,  C09K11/02 ,  C09K11/06 ,  H10K50/11 ,  H10K101/10 ,  H10K101/00

CPC classification number: H10K85/6572 ,  C07D239/74 ,  C07D241/42 ,  C07D251/24 ,  C07D487/04 ,  C09K11/025 ,  C09K11/06 ,  H10K85/654 ,  H10K85/6574 ,  H10K85/6576 ,  C09K2211/1018 ,  H10K50/11 ,  H10K2101/10 ,  H10K2101/90

Abstract: The present disclosure relates to a plurality of host materials and organic electroluminescent devices comprising the same. The present disclosure may provide a plurality of host materials having a composition favorable to thermal denaturation due to a low deposition temperature, while improving hole properties and electronic properties of HOMO and LUMO, by comprising separate compounds represented by formulas 1 and 2 into a light-emitting layer. By comprising the plurality of host materials of the present disclosure, it is possible to provide an organic electroluminescent device having a lower driving voltage, higher luminous efficiency and/or longer lifetime.

公开(公告)号：US11856842B2

公开(公告)日：2023-12-26

申请号：US17155893

申请日：2021-01-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seulong Kim ,  Younsun Kim ,  Dongwoo Shin ,  Jungsub Lee ,  Naoyuki Ito ,  Jino Lim

IPC: H01L51/00 ,  H10K85/60 ,  H10K85/40 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K85/30 ,  H10K101/10 ,  H10K101/00

CPC classification number: H10K85/633 ,  H10K85/40 ,  H10K85/615 ,  H10K85/622 ,  H10K85/626 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K50/11 ,  H10K50/15 ,  H10K50/156 ,  H10K50/16 ,  H10K50/166 ,  H10K85/324 ,  H10K85/623 ,  H10K85/624 ,  H10K2101/10 ,  H10K2101/90

Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, wherein the hole transport region includes a first compound, the emission layer includes a second compound and a third compound, and the electron transport region includes a fourth compound and a fifth compound. An organic light-emitting device according to the one or more embodiments may have high efficiency and long lifespan.

公开(公告)号：US11844275B2

公开(公告)日：2023-12-12

申请号：US17068313

申请日：2020-10-12

Applicant: LG Display Co., Ltd. ,  Korea University Research and Business Foundation

Inventor： Dae-Wi Yoon ,  Suk-Young Bae ,  In-Ae Shin ,  Su-Na Choi ,  Dong-Hoon Choi ,  Min-Ju Cho ,  Jiwon Yoon

IPC: C07D487/04 ,  C07D513/04 ,  C07D519/00 ,  H10K101/00 ,  H10K101/20 ,  H10K101/40 ,  H10K50/11 ,  H10K50/12 ,  H10K50/16 ,  H10K50/18 ,  H10K85/60

CPC classification number: H10K85/6572 ,  C07D513/04 ,  H10K50/11 ,  H10K50/16 ,  H10K50/18 ,  H10K2101/40

Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound is a bipolar compound having a p-type moiety and an n-type moiety and has high energy level and proper energy bandgap for an emissive layer of the OLED. As the organic compound is applied into the emissive layer, the OLED can maximize its luminous properties as holes and electrons are recombined uniformly over the whole area in an EML.

公开(公告)号：US11832465B2

公开(公告)日：2023-11-28

申请号：US17834973

申请日：2022-06-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Takahiro Ishisone ,  Nobuharu Ohsawa ,  Yusuke Nonaka ,  Toshiki Sasaki

IPC: H01L51/50 ,  H10K50/11 ,  G09G3/3225 ,  H10K50/12 ,  H10K50/13 ,  H10K50/15 ,  H10K50/16 ,  H10K50/81 ,  H10K50/82 ,  H10K50/84 ,  H10K59/00 ,  H10K59/131 ,  H10K59/121 ,  H10K59/38 ,  H10K101/10 ,  H10K101/40 ,  H10K101/00 ,  H10K101/30

CPC classification number: H10K50/11 ,  G09G3/3225 ,  H10K50/12 ,  H10K50/13 ,  H10K50/131 ,  H10K50/15 ,  H10K50/16 ,  H10K50/81 ,  H10K50/82 ,  H10K50/84 ,  H10K59/00 ,  H10K59/1213 ,  H10K59/131 ,  G09G2300/0426 ,  H10K59/38 ,  H10K2101/10 ,  H10K2101/27 ,  H10K2101/30 ,  H10K2101/40

Abstract: Emission efficiency of a light-emitting element is improved. The light-emitting element has a pair of electrodes and an EL layer between the pair of electrodes. The EL layer includes a first light-emitting layer and a second light-emitting layer. The first light-emitting layer includes a fluorescent material and a host material. The second light-emitting layer includes a phosphorescent material, a first organic compound, and a second organic compound. An emission spectrum of the second light-emitting layer has a peak in a yellow wavelength region. The first organic compound and the second organic compound form an exciplex.

公开(公告)号：US20230363266A1

公开(公告)日：2023-11-09

申请号：US18026175

申请日：2021-12-14

Applicant: LG CHEM, LTD.

Inventor： Minjun KIM ,  Dong Hoon LEE ,  Sang Duk SUH ,  Young Seok KIM ,  Da Jung LEE

IPC: H10K85/60 ,  C07D498/04 ,  C07D513/04 ,  C09K11/06 ,  H10K101/00 ,  H10K50/18 ,  H10K50/11

CPC classification number: H10K85/657 ,  H10K85/636 ,  C07D498/04 ,  H10K85/6576 ,  H10K85/615 ,  C07D513/04 ,  C09K11/06 ,  H10K85/6574 ,  H10K85/633 ,  H10K85/654 ,  H10K85/626 ,  H10K2101/90 ,  C09K2211/1018 ,  H10K50/181 ,  H10K50/11

Abstract: Provided is a novel compound of Chemical Formula 1:




wherein: A is a thiazole ring or an oxazole ring fused with an adjacent ring; L1 is a single bond, substituted or unsubstituted C6-60 arylene, or substituted or unsubstituted C2-60 heteroarylene containing at least of N, O and S; R1 is




Ar1 to Ar4 are each independently substituted or unsubstituted C6-60 aryl or substituted or unsubstituted C2-60 heteroaryl containing at least one of N, O and S; L2 to L5 are each independently a single bond, substituted or unsubstituted C6-60 arylene, or substituted or unsubstituted C2-60 heteroarylene containing at least one of N, O and S; R2 is a substituted or unsubstituted C6-60 aryl or substituted or unsubstituted C2-60 heteroaryl containing at least of N, O and S; D is deuterium; and n is an integer of 0 to 5, and an organic light emitting device comprising the same.

公开(公告)号：US11788001B2

公开(公告)日：2023-10-17

申请号：US17103784

申请日：2020-11-24

Applicant: Cambridge Display Technology Limited ,  Sumitomo Chemical Company Limited

Inventor： Ruth Pegington ,  Michael Cass ,  David Mohamad ,  Matthew Roberts ,  William Tarran ,  Martin Humphries

IPC: C09K11/06 ,  C08G61/02 ,  C08G61/12 ,  H10K85/10 ,  H10K85/30 ,  H10K50/11 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K102/10

CPC classification number: C09K11/06 ,  C08G61/02 ,  C08G61/12 ,  H10K85/111 ,  H10K85/151 ,  H10K85/342 ,  H10K85/361 ,  C08G61/122 ,  C08G2261/11 ,  C08G2261/122 ,  C08G2261/1412 ,  C08G2261/312 ,  C08G2261/3142 ,  C08G2261/3422 ,  C08G2261/374 ,  C08G2261/411 ,  C08G2261/5242 ,  C08G2261/95 ,  H10K50/11 ,  H10K85/30 ,  H10K85/623 ,  H10K2101/00 ,  H10K2101/10 ,  H10K2102/103

Abstract: A light-emitting polymer comprising a light-emitting repeat unit in a backbone of the polymer, wherein the polymer has an anisotropy of no more than 0.8 and wherein a transition dipole moment of the light-emitting repeat unit is aligned with the polymer backbone.

公开(公告)号：US11770969B2

公开(公告)日：2023-09-26

申请号：US17485623

申请日：2021-09-27

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeyoshi Watabe ,  Satoshi Seo ,  Satomi Mitsumori

IPC: H10K85/30 ,  C09K11/02 ,  C09K11/06 ,  C07F15/00 ,  G06F3/044 ,  H05B33/14 ,  G09G3/3225 ,  H10K50/11 ,  H10K50/12 ,  G06F3/041 ,  H10K50/84 ,  H10K77/10 ,  H10K85/60 ,  H10K101/40 ,  H10K101/10 ,  H10K101/30 ,  H10K101/00

CPC classification number: H10K85/342 ,  C07F15/0033 ,  C09K11/025 ,  C09K11/06 ,  G06F3/044 ,  G09G3/3225 ,  H05B33/14 ,  H10K50/11 ,  H10K50/121 ,  C09K2211/1007 ,  C09K2211/1059 ,  C09K2211/185 ,  G06F3/0416 ,  G06F3/0446 ,  G06F2203/04111 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0809 ,  G09G2310/0267 ,  G09G2310/0272 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2330/04 ,  G09G2380/02 ,  H10K50/841 ,  H10K77/111 ,  H10K85/322 ,  H10K85/361 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6576 ,  H10K2101/10 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2101/90

Abstract: To provide a light-emitting element with high emission efficiency and low driving voltage. The light-emitting element includes a guest material and a host material. A LUMO level of the host material is higher than a LUMO level of the host material, and a HOMO level of the guest material is lower than a HOMO level of the host material. The guest material has a function of converting triplet excitation energy into light emission. The difference between a singlet excitation energy level and a triplet excitation energy level of the host material is greater than 0 eV and less than or equal to 0.2 eV. The energy difference between the LUMO level and the HOMO level of the host material is larger than or equal to light emission energy of the guest material.

公开(公告)号：US11731975B2

公开(公告)日：2023-08-22

申请号：US17201344

申请日：2021-03-15

Applicant: Universal Display Corporation

Inventor： Jerald Feldman

IPC: H01L51/50 ,  C07D487/04 ,  H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K50/18 ,  H10K85/60 ,  H10K50/11 ,  H10K85/30 ,  H10K101/10 ,  H10K101/40 ,  H10K101/00

CPC classification number: C07D487/04 ,  H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K50/18 ,  H10K85/654 ,  H10K85/6572 ,  H10K50/11 ,  H10K85/341 ,  H10K85/342 ,  H10K85/631 ,  H10K2101/10 ,  H10K2101/40 ,  H10K2101/90

Abstract: The present invention includes novel organic materials comprising indolo[2,3-c]carbazole linked to an aromatic heterocycle via a carbazole linker. These materials may be useful as host materials for PHOLED devices.