Patents by Inventor Ik Rang CHOE
Ik Rang CHOE 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: 12201009Abstract: An organic light emitting diode (OLED) including at least one emitting material layer (EML) disposed between two electrodes and comprising a first compound including a fused ring of boron and oxygen as a nuclear atom and a second compound including a fused ring of born and nitrogen as a nuclear atom and an organic light emitting device including the OLED is disclosed. The first compound and the second compound may be the same emitting material layer or adjacently disposed emitting material layers. The OLED can lower its driving voltage and improve its luminous efficiency using the first and second compounds with adjusting their energy levels.Type: GrantFiled: November 4, 2021Date of Patent: January 14, 2025Assignee: LG Display Co., Ltd.Inventors: Dong-Ryun Lee, Hye-Gun Ryu, Ik-Rang Choe, Jun-Yun Kim
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Patent number: 11968898Abstract: An organic light emitting diode (OLED) includes a first emitting material layer disposed adjacently to a first electrode and a second emitting material layer disposed adjacently to a second electrode. The first emitting material layer includes a first compound having high affinity to holes and a second compound of thermally activated delayed fluorescent material, and the second emitting material layer includes a fourth compound having high affinity to electrons and implementing triplet-triplet annihilation. Two emitting material layers having adjusted energy levels allow the OLED to lower its driving voltages and improve its luminous efficiency and luminous lifetime.Type: GrantFiled: October 22, 2020Date of Patent: April 23, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Hye-Gun Ryu, Ik-Rang Choe, Jun-Yun Kim, Seong-Keun Kim, Ju-Young Lee
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Patent number: 11943998Abstract: The present disclosure provides an organic light emitting diode including a first electrode; a second electrode facing the first electrode; and an emitting material layer including a first compound and a second compound positioned between the first and second electrodes, wherein the first compound includes a hexagonal-ring moiety including one boron atom, one oxygen atom and four carbon atoms, and the second compound includes a hexagonal-ring moiety including one boron atom, one nitrogen atom and four carbon atoms, and an organic light emitting device including the organic light emitting diode.Type: GrantFiled: November 20, 2020Date of Patent: March 26, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Ik-Rang Choe, Hye-Gun Ryu, Jun-Yun Kim, Seong-Keun Kim, Ju-Young Lee
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Patent number: 11856853Abstract: The present disclosure relates to an organic compound having the following structure of Chemical Formula 1, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound is a bipolar organic compound having a p-type moiety and an n-type moiety. The organic compound has a high excited triplet energy level, a wide energy bandgap and excellent thermal stability. When the organic compound is introduced into an emitting material layer (EML) of the OLED, holes and electrons are recombined in the whole area of the EML, thus the OLED can improve its luminous efficiency and luminous lifetime.Type: GrantFiled: November 25, 2020Date of Patent: December 26, 2023Assignees: LG DISPLAY CO., LTD., LG CHEM, LTD.Inventors: Hyong-Jong Choi, Bo-Min Seo, Ik-Rang Choe, Hye-Gun Ryu, Jin-Joo Kim
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Patent number: 11814374Abstract: The present disclosure provides an organic compound of following formula and an organic light emitting diode and an OLED device including the organic compound.Type: GrantFiled: July 17, 2020Date of Patent: November 14, 2023Assignee: LG Display Co., Ltd.Inventors: Ik-Rang Choe, Kyung-Jin Yoon, In-Ae Shin, Mi-Sang Yoo
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Organic compound, organic light emitting diode and organic light emitting device having the compound
Patent number: 11420979Abstract: Disclosed is an organic compound that includes a fused hetero aromatic moiety of a spiro structure as an electron donor and a triazine moiety as an electron acceptor that is linked to the electron donor via an arylene linker substituted with at least one electron withdrawing group, an organic light emitting diode and an organic light emitting device each of which applies the organic compound into at least one emitting unit. The organic compound enables the organic light emitting diode to increase its luminous efficiency and to improve its color purity.Type: GrantFiled: December 24, 2019Date of Patent: August 23, 2022Assignees: LG DISPLAY CO., LTD., SOULBRAIN CO., LTD.Inventors: Ik-Rang Choe, Tae-Ryang Hong, Jun-Yun Kim, Jin Hee Kim, Eun Chul Shin -
Publication number: 20220209121Abstract: An organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first emitting material layer including a first compound, a second compound and a third compound and positioned between the first and second electrodes, wherein an onset wavelength of the second compound is greater than an onset wavelength of the first compound and is smaller than an onset wavelength of the third compound, wherein a maximum emission wavelength of the second compound is smaller than a maximum emission wavelength of the first compound, and a maximum emission wavelength of the third compound is equal to or smaller than a maximum emission wavelength of the first compound, and wherein a full width at half maximum of each of the second and third compounds is smaller than a full width at half maximum of the first compound.Type: ApplicationFiled: November 11, 2021Publication date: June 30, 2022Applicant: LG DISPLAY CO., LTD.Inventors: Gyeong-Woo KIM, Ji-Seon JANG, Ik-Rang CHOE, Hye-Gun RYU, Han-Jin AHN, Jun-Yun KIM
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Publication number: 20220149280Abstract: An organic light emitting diode (OLED) including at least one emitting material layer (EML) disposed between two electrodes and comprising a first compound including a fused ring of boron and oxygen as a nuclear atom and a second compound including a fused ring of born and nitrogen as a nuclear atom and an organic light emitting device including the OLED is disclosed. The first compound and the second compound may be the same emitting material layer or adjacently disposed emitting material layers. The OLED can lower its driving voltage and improve its luminous efficiency using the first and second compounds with adjusting their energy levels.Type: ApplicationFiled: November 4, 2021Publication date: May 12, 2022Applicant: LG DISPLAY CO., LTD.Inventors: Dong-Ryun LEE, Hye-Gun RYU, Ik-Rang CHOE, Jun-Yun KIM
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Publication number: 20220149296Abstract: An organic light emitting diode (OLED) including at least one emitting material layer (EML) disposed between two electrodes and comprising a first compound including a fused hetero aromatic ring with at least one nitrogen atom and a second compound of a boron-based compound and an organic light emitting device including the OLED is disclosed. The first compound and the second compound may be the same emitting material layer or adjacently disposed emitting material layers. The OLED can lower its driving voltage and improve its luminous efficiency using the first and second compounds with adjusting their energy levels.Type: ApplicationFiled: November 4, 2021Publication date: May 12, 2022Applicant: LG DISPLAY CO., LTD.Inventors: Ik-Rang CHOE, Hye-Gun RYU, Dong-Ryun LEE, Jun-Yun KIM
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Publication number: 20210167300Abstract: The present disclosure relates to an organic compound having the following structure of Chemical Formula 1, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound is a bipolar organic compound having a p-type moiety and an n-type moiety. The organic compound has a high excited triplet energy level, a wide energy bandgap and excellent thermal stability. When the organic compound is introduced into an emitting material layer (EML) of the OLED, holes and electrons are recombined in the whole area of the EML, thus the OLED can improve its luminous efficiency and luminous lifetime.Type: ApplicationFiled: November 25, 2020Publication date: June 3, 2021Applicants: LG DISPLAY CO., LTD., LG CHEM, LTD.Inventors: Hyong-Jong CHOI, Bo-Min SEO, Ik-Rang CHOE, Hye-Gun RYU, Jin-Joo KIM
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Publication number: 20210167289Abstract: The present disclosure provides an organic light emitting diode including a first electrode; a second electrode facing the first electrode; and an emitting material layer including a first compound and a second compound positioned between the first and second electrodes, wherein the first compound includes a hexagonal-ring moiety including one boron atom, one oxygen atom and four carbon atoms, and the second compound includes a hexagonal-ring moiety including one boron atom, one nitrogen atom and four carbon atoms, and an organic light emitting device including the organic light emitting diode.Type: ApplicationFiled: November 20, 2020Publication date: June 3, 2021Applicant: LG Display Co., Ltd.Inventors: Ik-Rang CHOE, Hye-Gun RYU, Jun-Yun KIM, Seong-Keun KIM, Ju-Young LEE
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Publication number: 20210126205Abstract: An organic light emitting diode (OLED) includes a first emitting material layer disposed adjacently to a first electrode and a second emitting material layer disposed adjacently to a second electrode. The first emitting material layer includes a first compound having high affinity to holes and a second compound of thermally activated delayed fluorescent material, and the second emitting material layer includes a fourth compound having high affinity to electrons and implementing triplet-triplet annihilation. Two emitting material layers having adjusted energy levels allow the OLED to lower its driving voltages and improve its luminous efficiency and luminous lifetime.Type: ApplicationFiled: October 22, 2020Publication date: April 29, 2021Applicant: LG DISPLAY CO., LTD.Inventors: Hye-Gun RYU, Ik-Rang CHOE, Jun-Yun KIM, Seong-Keun KIM, Ju-Young LEE
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Publication number: 20210024509Abstract: The present disclosure provides an organic compound of following formula and an organic light emitting diode and an OLED device including the organic compound.Type: ApplicationFiled: July 17, 2020Publication date: January 28, 2021Applicant: LG DISPLAY CO., LTD.Inventors: Ik-Rang CHOE, Kyung-Jin YOON, In-Ae SHIN, Mi-Sang YOO
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ORGANIC COMPOUND, ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DEVICE HAVING THE COMPOUND
Publication number: 20200199149Abstract: Disclosed is an organic compound that includes a fused hetero aromatic moiety of a spiro structure as an electron donor and a triazine moiety as an electron acceptor that is linked to the electron donor via an arylene linker substituted with at least one electron withdrawing group, an organic light emitting diode and an organic light emitting device each of which applies the organic compound into at least one emitting unit. The organic compound enables the organic light emitting diode to increase its luminous efficiency and to improve its color purity.Type: ApplicationFiled: December 24, 2019Publication date: June 25, 2020Applicants: LG Display Co., Ltd., Soulbrain Co., Ltd.Inventors: Ik-Rang Choe, Tae-Ryang Hong, Jun-Yun Kim, Jin Hee Kim, Eun Chul Shin -
Publication number: 20200190122Abstract: The present disclosure provides a delayed fluorescent compound of following Formula, and an organic light emitting diode including a first electrode, a second electrode and an organic emitting layer between the first and second electrodes, where the delayed fluorescent compound is included in the organic emitting layer, and an organic light emitting display device including the organic emitting compound.Type: ApplicationFiled: December 3, 2019Publication date: June 18, 2020Applicant: LG Display Co., Ltd.Inventors: Suk-Young BAE, In-Ae SHIN, Jun-Yun KIM, Ik-Rang CHOE
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Publication number: 20200194674Abstract: The present disclosure provides an organic compound of following Formula, and an organic light emitting diode and an organic light emitting display device including the organic emitting compound.Type: ApplicationFiled: December 3, 2019Publication date: June 18, 2020Applicant: LG Display Co., Ltd.Inventors: Suk-Young BAE, Ik-Rang CHOE, Jun-Yun KIM
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Patent number: 10686203Abstract: A peptide-inorganic material composite film according to an exemplary embodiment of the present invention includes: a unit peptide including 4 to 15 amino acids, and a transition metal oxide hybridized with the unit peptide, wherein the unit peptide includes at least two tyrosines, and the plurality of unit peptides positioned adjacent to each other have a form in which the tyrosines are linked.Type: GrantFiled: December 8, 2017Date of Patent: June 16, 2020Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Ki Tae Nam, Yoon-Sik Lee, Young-O Kim, Jaehun Lee, Ik Rang Choe
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Publication number: 20180166722Abstract: A peptide-inorganic material composite film according to an exemplary embodiment of the present invention includes: a unit peptide including 4 to 15 amino acids, and a transition metal oxide hybridized with the unit peptide, wherein the unit peptide includes at least two tyrosines, and the plurality of unit peptides positioned adjacent to each other have a form in which the tyrosines are linked.Type: ApplicationFiled: December 8, 2017Publication date: June 14, 2018Inventors: Ki Tae NAM, Yoon-Sik LEE, Young-O KIM, Jaehun LEE, Ik Rang CHOE