Patents by Inventor Heungwoo CHOI
Heungwoo CHOI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11877464Abstract: Provided is an organic light emitting device that includes an anode, a cathode provided to face the anode, and one or more light emitting units provided between the anode and the cathode, wherein the organic light emitting device includes a charge generation layer provided between the anode and the one light emitting unit, or between the two light emitting units adjacent to each other among the light emitting units, the charge generation layer comprises a p-type charge injection layer, a p-type charge generation layer, or a layer which simultaneously injects and generates p-type charges, and the p-type charge injection layer, the p-type charge generation layer, or the layer which simultaneously injects and generates p-type charges has electric conductivity of 1×10?6 S/cm or more.Type: GrantFiled: May 11, 2018Date of Patent: January 16, 2024Assignee: LG Chem, Ltd.Inventors: Dongheon Kim, Nansra Heo, Wanpyo Hong, Yeon Hwan Kim, Heungwoo Choi, Jun Yun, Hyungjin Lee, Jae Seung Ha
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Patent number: 11877507Abstract: 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: GrantFiled: April 20, 2022Date of Patent: January 16, 2024Assignees: LG Display Co., Ltd., LG Chem, Ltd.Inventors: Jungkeun Kim, Dohan Kim, Jeongdae Seo, Hyoseok Kim, Heungwoo Choi, Wanpyo Hong
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Publication number: 20230389415Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an 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: ApplicationFiled: August 10, 2023Publication date: November 30, 2023Applicants: LG Display Co., Ltd., LG Chem, Ltd.Inventors: Jungkeun KIM, Dohan KIM, Jeongdae SEO, Hyoseok KIM, Heungwoo CHOI, Wanpyo HONG
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Patent number: 11805696Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an 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: GrantFiled: December 30, 2021Date of Patent: October 31, 2023Assignees: Display Co., Ltd., LG Chem., Ltd.Inventors: Jungkeun Kim, Dohan Kim, Jeongdae Seo, Hyoseok Kim, Heungwoo Choi, Wanpyo Hong
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Publication number: 20220246855Abstract: An organic light emitting display device is provided.Type: ApplicationFiled: April 20, 2022Publication date: August 4, 2022Applicants: LG Display Co., Ltd., LG Chem, Ltd.Inventors: Jungkeun KIM, Dohan KIM, Jeongdae SEO, Hyoseok KIM, Heungwoo CHOI, Wanpyo HONG
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Patent number: 11349079Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an 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: GrantFiled: June 4, 2020Date of Patent: May 31, 2022Assignees: LG Display Co., Ltd., LG Chem, Ltd.Inventors: Jungkeun Kim, Dohan Kim, Jeongdae Seo, Hyoseok Kim, Heungwoo Choi, Wanpyo Hong
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Publication number: 20220123217Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an 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: ApplicationFiled: December 30, 2021Publication date: April 21, 2022Applicants: LG Display Co., Ltd., LG Chem, Ltd.Inventors: Jungkeun KIM, Dohan KIM, Jeongdae SEO, Hyoseok KIM, Heungwoo CHOI, Wanpyo HONG
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Publication number: 20220102640Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an 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: ApplicationFiled: June 4, 2020Publication date: March 31, 2022Applicants: LG Display Co., Ltd., LG CHEM, LTD.Inventors: Jungkeun KIM, Dohan KIM, Jeongdae SEO, Hyoseok KIM, Heungwoo CHOI, Wanpyo HONG
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Patent number: 11158810Abstract: The present specification provides a multicyclic compound of Chemical Formula 1, and an organic light emitting device including the same.Type: GrantFiled: October 12, 2016Date of Patent: October 26, 2021Inventors: Wanpyo Hong, Hyoungcheul Kim, Yun Hwan Kim, Heungwoo Choi, Jun Yun
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Patent number: 11158808Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an 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: GrantFiled: April 7, 2020Date of Patent: October 26, 2021Assignees: LG Display Co., Ltd., LG Chem, Ltd.Inventors: Jungkeun Kim, Dohan Kim, Jeongdae Seo, Hyoseok Kim, Heungwoo Choi, Wanpyo Hong
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Publication number: 20200303651Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an 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: ApplicationFiled: June 4, 2020Publication date: September 24, 2020Applicants: LG Display Co., Ltd., LG CHEM, LTD.Inventors: Jungkeun KIM, Dohan KIM, Jeongdae SEO, Hyoseok KIM, Heungwoo CHOI, Wanpyo HONG
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Publication number: 20200235302Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an 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: ApplicationFiled: April 7, 2020Publication date: July 23, 2020Applicant: LG Display Co., Ltd.Inventors: Jungkeun KIM, Dohan KIM, Jeongdae SEO, Hyoseok KIM, Heungwoo CHOI, Wanpyo HONG
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Patent number: 10658593Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an 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: GrantFiled: August 29, 2016Date of Patent: May 19, 2020Assignees: LG DISPLAY CO., LTD, LG CHEM, LTD.Inventors: Jungkeun Kim, Dohan Kim, Jeongdae Seo, Hyoseok Kim, Heungwoo Choi, Wanpyo Hong
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Publication number: 20200144552Abstract: Provided is an organic light emitting device that includes an anode, a cathode provided to face the anode, and one or more light emitting units provided between the anode and the cathode, wherein the organic light emitting device includes a charge generation layer provided between the anode and the one light emitting unit, or between the two light emitting units adjacent to each other among the light emitting units, the charge generation layer comprises a p-type charge injection layer, a p-type charge generation layer, or a layer which simultaneously injects and generates p-type charges, and the p-type charge injection layer, the p-type charge generation layer, or the layer which simultaneously injects and generates p-type charges has electric conductivity of 1×10?6 S/cm or more.Type: ApplicationFiled: May 11, 2018Publication date: May 7, 2020Inventors: Dongheon KIM, Nansra HEO, Wanpyo HONG, Yeon Hwan KIM, Heungwoo CHOI, Jun YUN, Hyungjin LEE, Jae Seung HA
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Publication number: 20200127207Abstract: The present specification provides a multicyclic compound of Chemical Formula 1, and an organic light emitting device including the same.Type: ApplicationFiled: October 12, 2016Publication date: April 23, 2020Applicant: LG Chem, Ltd.Inventors: Wanpyo Hong, Hyoungcheul Kim, Yun Hwan Kim, Heungwoo Choi, Jun Yun
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Publication number: 20170162792Abstract: An organic light emitting display device is provided. The organic light emitting display device may include at least one light emitting part between an 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: ApplicationFiled: August 29, 2016Publication date: June 8, 2017Applicants: LG DISPLAY CO., LTD., LG CHEM, LTD.Inventors: Jungkeun KIM, Dohan KIM, Jeongdae SEO, Hyoseok KIM, Heungwoo CHOI, Wanpyo HONG
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Publication number: 20150060833Abstract: The present specification provides a novel compound that is capable of largely improving an expected life span, efficiency, electrochemical stability, and thermal stability of an organic electronic device, and an organic electronic device that includes an organic material layer including the compound.Type: ApplicationFiled: September 24, 2014Publication date: March 5, 2015Inventors: Hyok Joon KWON, Kidong KOO, Kongkyeom KIM, Minjun KIM, Seong So KIM, Hyoung Seok KIM, Hyoungcheul KIM, Sang Young JEON, Heungwoo CHOI