Abstract: A compound comprising a ligand LA of Formulae I, II, or III wherein the ligand LA is coordinated to a transition metal M, and optionally, M is also coordinated to a ligand LB; A is N, B, or CR7; Y is absent, or selected from the group consisting of C(O), C(Rya)(Ryb), C?C(Rya)(Ryb), and Si(Rya)(Ryb), where if Y of Ring A is absent then ring carbon of R2 is bonded to N; wherein for the compounds of formula III at least one of R2, R3, and R4 is selected from N(Ar1)RN? or aryloxy; wherein Ar1 is selected from aryl or heteroaryl, each of which is optionally substituted. An OLED that includes an organic layer disposed between an anode and a cathode, and the organic layer includes a compound comprising a ligand LA of Formulae I, II, or III above. The OLED can be incorporated into one or more of a consumer product, e.g., an electronic component module, a flat panel display, e.g., a display for a phone, television, laptop, and/or a lighting panel for either commercial or residential applications.
Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between al anode and a cathode, and the at least one light emitting part having at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound represented by Chemical Formula 1 or 2.
Type:
Grant
Filed:
April 20, 2022
Date of Patent:
January 16, 2024
Assignees:
LG Display Co., Ltd., LG Chem, Ltd.
Inventors:
Jungkeun Kim, Dohan Kim, Jeongdae Seo, Hyoseok Kim, Heungwoo Choi, Wanpyo Hong
Abstract: An organic light-emitting device is provided. The organic light-emitting device includes: a first electrode; a second electrode; an organic layer between the first electrode and the second electrode, the organic layer including: an emission layer; 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, 50% or more of a total volume of the second electrode being silver (Ag), the hole transport region including an amine-based polymer including a first repeating unit represented by Formula 1, and a number average molecular weight of the amine-based polymer being about 1,000 or more.
Abstract: Provided herein are chiral compounds that exhibit circularly polarized photoluminescence and electroluminescence and electroluminescent devices and circularly polarized fluorescent probes comprising the same.
Type:
Grant
Filed:
February 14, 2019
Date of Patent:
January 9, 2024
Assignee:
The Hong Kong University of Science and Technology
Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the organic layer includes a first compound represented by Formula 1 and a second compound represented by Formula 501. The organic light-emitting device including the first compound and the second compound may have low driving voltage, high efficiency, and high luminance.
Type:
Grant
Filed:
December 13, 2016
Date of Patent:
January 9, 2024
Assignee:
Samsung Display Co., Ltd.
Inventors:
Sung-Wook Kim, Myeong-Suk Kim, Hwan-Hee Cho, Jin-Soo Hwang
Abstract: An organometallic compound represented by Formula 1, an organic light-emitting device including the organometallic compound, and a diagnostic composition including the organometallic compound: M(L1)n1(L2)n2??Formula 1 wherein, in Formula 1, M, L1, L2, n1, and n2 are each described herein.
Abstract: An organometallic compound represented by Formula 1: wherein, Formula 1, R1 to R10 and A1 to A7 are the same as described in the detailed description of the specification.
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.
Type:
Grant
Filed:
October 12, 2020
Date of Patent:
December 12, 2023
Assignees:
LG DISPLAY CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
Abstract: Hole injection layer and charge generation layer containing a truxene based compound are disclosed for organic electronic devices. By applying the truxene based compound for the hole injection layer, low driving voltage, high efficiency and long lifetime of the device can be achieved. In addition, a P-type charge generation layer comprising the truxene based compound can be used in tandem OLEDs structure and can further improve the voltage, efficiency and lifetime of the device.
Abstract: A compound represented by the following general formula is an excellent light-emitting material. R1 to R5 each independently represent a hydrogen atom or a substituent, and one of R1 to R5 is a cyano group, one to three of R1 to R5 each are an aryl group Ar optionally substituted with an alkyl group or an aryl group, and one to three of R1 to R5 each are a donor group D (but excepting one that corresponds to Ar).
Abstract: A compound of Formula I having isoindoline moiety is disclosed. Their unique configuration of the fused rings enable the compound to exhibit phosphorescent emission in red color region to near infrared region and are useful as emitter materials in organic electroluminescence device.
Type:
Grant
Filed:
November 13, 2019
Date of Patent:
November 21, 2023
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Zhiqiang Ji, Tongxiang Lu, Pierre-Luc T. Boudreault, George Fitzgerald
Abstract: An organic light-emitting device includes an auxiliary layer located between a first electrode and a hole injection layer or a hole transport layer and including a metal fluoride. The metal of the metal fluoride may be a Group III metal having a high work function of 3.8 eV or more. The hole injection barrier at the interface between the first electrode and the hole injection layer may be adjusted by the fluoride of the high work function metal in the auxiliary layer so that the electron-hole charge balance and the efficiency of the organic light-emitting device may be improved.
Type:
Grant
Filed:
September 24, 2020
Date of Patent:
November 21, 2023
Assignee:
Samsung Display Co., Ltd.
Inventors:
Wonsuk Han, Donghui Lee, Hakchoong Lee, Dongchan Kim, Jiyoung Moon, Jihye Lee, Chulsoon Lee, Haemyeong Lee, Yoonhyeung Cho
Abstract: Tetradentate platinum complexes comprising an imidazole/benzimidazole carbene having a structure of Formula I is disclosed. In Formula I, M is Pd or Pt. These platinum carbenes with the specific substituents disclosed herein are novel and provides phosphorescent emissive compounds that exhibit physical properties that can be tuned, such as sublimation temperature, emission color, and device stability.
Type:
Grant
Filed:
March 3, 2020
Date of Patent:
November 14, 2023
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Hsiao-Fan Chen, Tyler Fleetham, Peter Wolohan, Jason Brooks, Pierre-Luc T. Boudreault, Charles J. Stanton, III, Olexandr Tretyak, Raghupathi Neelarapu, Katarina Rohlfing, Douglas Williams
Abstract: The present disclosure provides an organic compound of following formula and an organic light emitting diode and an OLED device including the organic compound.
Abstract: A compound having a formula M(LA)x(LB)y(LC)z is provided. In the compound of M(LA)x(LB)y(LC)z, ligand LA is ligand LB is and ligand LC is In addition, M is a metal having an atomic mass greater than 40, x is 1, 2, or 3, and y and z are independently 0, 1, or 2. In the compound, Z5 is carbon or nitrogen; one of Z1 to Z4 is nitrogen and three of Z1 to Z4 are carbon substituted by RB, and rings C and D are each independently a 5 or 6-membered carbocyclic or heterocyclic ring. Each RA, RB, RC, and RD is independently selected from a group of substituents, where at least one RB is heteroaryl, which can be further substituted, and any adjacent substitutents are optionally joined or fused into a ring. Formulations and devices, such as OLEDs, that include the first compound are also provided.
Type:
Grant
Filed:
March 31, 2020
Date of Patent:
November 7, 2023
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Pierre-Luc T. Boudreault, Chuanjun Xia, Scott Joseph
Abstract: A compound having the following formula is disclosed. The compound is useful as an emitter in OLED applications.
Type:
Grant
Filed:
December 18, 2019
Date of Patent:
October 31, 2023
Assignee:
UNIVERSAL DISPLAY CORPORATION
Inventors:
Hsiao-Fan Chen, Morgan C. Macinnis, Nicholas J. Thompson, Tyler Fleetham, Jason Brooks, Scott Beers, Peter Wolohan, Sean Michael Ryno, Ivan Milas, Charles J. Stanton, III, Olexandr Tretyak, Raghupathi Neelarapu, Katarina Rohlfing, Douglas Williams