Abstract: The present invention relates to a condensed fluorene derivative comprising a hetero ring, and, more specifically, relates to an intermediate for producing a hetero-ring compound able to exhibit the outstanding element characteristic of a long life and outstanding luminance and light-emission efficiency when used as an organic light-emitting material.
Type:
Grant
Filed:
June 10, 2015
Date of Patent:
June 20, 2023
Assignee:
SFC CO., LTD.
Inventors:
Soon-Wook Cha, Ju-man Song, Yu-rim Lee, Sang-Woo Park, Hee-Dae Kim, Seok-Bae Park
Abstract: The present invention relates to a heterocyclic compound containing an aromatic amine group and an organic light-emitting device comprising the same and, more specifically, to a heterocyclic compound and an organic light-emitting device comprising the same, the heterocyclic compound being excellent in brightness and excellent light emission efficiency and being able to exhibit long life and excellent device characteristics when being used as an organic light-emitting material.
Type:
Grant
Filed:
May 7, 2015
Date of Patent:
June 6, 2023
Assignee:
SFC CO., LTD.
Inventors:
Soon-Wook Cha, Seok-Bae Park, Hee-Dae Kim, Yu-rim Lee, Sang-Woo Park, Ju-man Song
Abstract: An organic light-emitting device including a first compound represented by Formula 1 and a second compound represented by one of Formulae 2A and 2B.
Type:
Grant
Filed:
December 9, 2016
Date of Patent:
May 16, 2023
Assignee:
SAMSUNG DISPLAY CO., LTD.
Inventors:
Myeong-Suk Kim, Hee-Yeon Kim, Hwan-Hee Cho, Seung-Gak Yang
Abstract: The present application relates to an electronic device having defined composition of the emitting layer. The application furthermore relates to the use of the device in displays or in lighting applications.
Type:
Grant
Filed:
December 9, 2013
Date of Patent:
April 18, 2023
Assignee:
MERCK PATENT GMBH
Inventors:
Christof Pflumm, Frank Voges, Jonas Valentin Kroeber, Philipp Stoessel, Holger Heil
Abstract: An organic light-emitting device including a first compound represented by Formula 1 and a second compound represented by one of Formulae 2A and 2B.
Type:
Grant
Filed:
December 9, 2016
Date of Patent:
March 21, 2023
Assignee:
SAMSUNG DISPLAY CO., LTD.
Inventors:
Myeong-Suk Kim, Hee-Yeon Kim, Hwan-Hee Cho, Seung-Gak Yang
Abstract: The present invention relates to organic electroluminescent devices, the emitting layer thereof containing a blend of a luminescent material having a narrow singlet-triplet gap and a fluorescent emission material having high steric shielding.
Type:
Grant
Filed:
February 18, 2015
Date of Patent:
March 21, 2023
Assignee:
MERCK PATENT GMBH
Inventors:
Philipp Stoessel, Amir Hossain Parham, Christof Pflumm, Anja Jatsch, Joachim Kaiser
Abstract: The present invention relates to an organic light emitting device comprising a light emitting layer and an electron transport layer which satisfy the following mathematical expressions, EHOMO-ET>EHOMO-BH and ELUMO-ET>ELUMO-GH, and having improved driving voltage, efficiency, and lifetime.
Type:
Grant
Filed:
March 26, 2018
Date of Patent:
February 28, 2023
Assignee:
LG CHEM, LTD.
Inventors:
Jung Oh Huh, Dong Hoon Lee, Boon Jae Jang, Min Young Kang, Dong Uk Heo, Mi Yeon Han
Abstract: Disclosed is an organic light emitting diode (OLED) includes a first emitting material layer, which includes a first compound and a second compound, and a second emitting material layer, which includes a third compound and a fourth compound, wherein a HOMO energy level of the first compound is higher than a HOMO energy level of the second compound and a HOMO energy level of the third compound is lower than a HOMO energy level of the fourth compound, and an organic light emitting device having the OLED. The OLED and the organic light emitting device disclosed have enhanced luminous efficiency, color purity and luminous life span as well as low driving voltage by applying the emitting material layer.
Type:
Grant
Filed:
July 22, 2019
Date of Patent:
February 21, 2023
Assignees:
LG DISPLAY CO., LTD., LG CHEM, LTD.
Inventors:
Tae-Ryang Hong, Hyong-Jong Choi, Jun-Yun Kim, Wan-Pyo Hong, Jin-Joo Kim, Hong-Sik Yoon
Abstract: Disclosed herein are provided an amine compound represented by the following [Chemical Formula A] or [Chemical Formula B], and an organic light-emitting diode comprising the same. wherein, the ring moieties, A1, A2, Q1, Q2, E, F, L1 to L6, Ar1 to Ar4, p1, p2, r1, r2, s1, s2, x, and y are each as defined in the Specification.
Type:
Grant
Filed:
October 26, 2016
Date of Patent:
January 24, 2023
Assignee:
SFC CO., LTD.
Inventors:
Soon-Wook Cha, Yoona Shin, Jea-Geon Lim, Sang-Woo Park, Ji-Hwam Kim, Jung-Ho Yoo, Young-Hwan Park
Abstract: The present invention relates to a compound represented by formula 1, an organic optoelectronic element comprising the same, and a display device comprising the organic optoeletric element. Formula 1 and the description regarding the samen are as defined in the specification.
Type:
Grant
Filed:
April 13, 2015
Date of Patent:
January 24, 2023
Assignee:
SAMSUNG SDI CO., LTD.
Inventors:
Dong-Wan Ryu, Young-Kyoung Jo, Sung-Hyun Jung, Chang-Ju Shin, Han-Ill Lee, Eui-Su Kang, Chang-Woo Kim, Min-Jee Park, Eun-Sun Yu, Pyeong-Seok Cho
Abstract: Metal complexes with cyclic ligands having Formula (I), are disclosed. Ligands with cyclic structure are believed to be beneficial to the rigidity and stability of the metal complexes, which is desirable for improving OLED device performance.
Type:
Grant
Filed:
November 7, 2017
Date of Patent:
January 17, 2023
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Lichang Zeng, Zhiqiang Ji, Mingjuan Su, Edward Barron, Chun Lin
Abstract: An organic electroluminescence device having an improved performance and a compound represented by formula (1), which is a novel material that enables the organic electroluminescence device: wherein, X, Ar1 to Ar5, R1 to R20, *a, and *b are the same as those defined in the specification.
Abstract: Disclosed herein is an organic light-emitting diode capable of operating at a low voltage with high efficiency. It comprises: a first electrode; a second electrode facing the first electrode; and a light-emitting layer interposed between the first electrode and the second electrode, wherein the light-emitting layer comprises at least one of the amine compounds represented by the following Chemical Formula A or B, and the compound represented by the following Chemical Formula C. Chemical Formulas A, B and C are as described in the Specification.
Type:
Grant
Filed:
October 26, 2016
Date of Patent:
January 3, 2023
Assignee:
SFC CO., LTD.
Inventors:
Sung-Wan Pyo, So Young Shim, Yun-Ah Lee, Se Jin Yu
Abstract: There is disclosed a compound having Formula I In Formula, I: Ar1 is selected from the group consisting of dibenzofuran, dibenzothiophene, or deuterated analogs thereof; Ar2 and Ar3 are the same or different and are hydrocarbon aryl, substituted derivatives thereof, or deuterated analogs thereof, with the proviso that Ar2 and Ar3 are not the same as Ar1; a is 0; and Ar1, Ar2, and Ar3 have no additional amino substituents.
Type:
Grant
Filed:
February 15, 2019
Date of Patent:
December 13, 2022
Inventors:
Norman Herron, Weiying Gao, Nora Sabina Radu, Ying Wang
Abstract: Disclosed herein is an organic light-emitting diode, comprising: a first electrode; a second electrode facing the first electrode; and an electron-blocking layer and a light-emitting layer sequentially interposed between the first electrode and the second electrode, wherein the light-emitting layer comprises at least one of the amine compounds represented by the following Chemical Formula A or B, and the electron-blocking layer comprises the compound represented by the following Chemical Formula C. Chemical Formulas A, B and C are as described in the Specification.
Type:
Grant
Filed:
October 26, 2016
Date of Patent:
December 6, 2022
Assignee:
SFC CO., LTD.
Inventors:
Sung-Wan Pyo, So Young Shim, Yun-Ah Lee, Se Jin Yu
Abstract: A mixture of carbazole and triazine derivatives that can be thermally evaporated from one crucible to fabricate thin films for electroluminescent devices is disclosed.
Abstract: The present disclosure provides an organic light emitting element which has a pair of electrodes and an organic compound layer disposed therebetween and in which the organic compound layer contains an organic compound represented by the following general formula [1], wherein in the formula [1], Ar1 and Ar2 each independently represent an aromatic hydrocarbon group or a heteroaromatic ring group, R1 to R4 are each independently selected from a hydrogen atom or a substituent, R1 and R2 and R3 and R4 each may form a benzene ring, wherein the benzene ring may have at least one substituent.
Abstract: An organic light-emitting device includes a first electrode layer, an emission layer, an electron transporting layer, an electron injection layer, and a second electrode layer sequentially formed from bottom to top. The emission layer includes a guest light-emitting material, a first phenyl phosphine oxide derivative and a hole transporting material. The electron transporting layer includes a second phenyl phosphine oxide derivative and a third phenyl phosphine oxide derivative different from the second phenyl phosphine oxide derivative. One of the second phenyl phosphine oxide derivative and the third phenyl phosphine oxide derivative is identical to the first phenyl phosphine oxide derivative. The electron injection layer includes an alkaline metal compound.
Abstract: Disclosed herein are an organic light emitting diode including: at least two light emitting stacks interposed between an anode and a cathode and including at least one light emitting material layer; and a charge generation layer interposed between the light emitting stacks. The charge generation layer includes an N-type charge generation layer and a P-type charge generation layer, wherein the N-type charge generation layer and the P-type charge generation layer are stacked in such direction for the N-type charge generation layer to face the anode and for the P-type charge generation layer to face the cathode. The N-type charge generation layer includes a compound represented by Formula 1. The P-type charge generation layer includes any one selected from the group consisting of a compound represented by Formula 2, a compound represented by Formula 3, and a combination thereof.
Type:
Grant
Filed:
December 21, 2018
Date of Patent:
December 6, 2022
Assignees:
LG DISPLAY CO., LTD., LG CHEM, LTD.
Inventors:
Seunghee Yoon, Jungkeun Kim, Jicheol Shin, Jeongdae Seo, Seonkeun Yoo, Joon Yoon, Wan Pyo Hong, Joo Yong Yoon