Patents by Inventor Chang-woong Chu
Chang-woong Chu 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).
-
Patent number: 11910707Abstract: According to one or more embodiments, an organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer.Type: GrantFiled: December 23, 2016Date of Patent: February 20, 2024Assignee: Samsung Display Co., Ltd.Inventors: Myeong-Suk Kim, Sung-Wook Kim, Hwan-Hee Cho, Jin-Soo Hwang, Chang-Woong Chu
-
Patent number: 11793012Abstract: An organic light emitting diode, including a first electrode; a second electrode facing the first electrode, the second electrode including magnesium; an emission layer between the first electrode and the second electrode; and an electron injection layer between the second electrode and the emission layer, the electron injection layer including a dipole material including a first component and a second component having different polarities, the dipole material including halide, and a content of the magnesium included in the second electrode being in a range of from 10 to 40 volume %.Type: GrantFiled: November 17, 2021Date of Patent: October 17, 2023Assignee: Samsung Display Co., Ltd.Inventors: Dong Chan Kim, Won Jong Kim, Eung Do Kim, Dong Kyu Seo, Da Hea Im, Sang Hoon Yim, Chang Woong Chu
-
Patent number: 11678498Abstract: An organic light-emitting device including a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode, the emission layer including a first compound and a second compound; a hole transport region between the first electrode and the emission layer; and an electron transport region, the electron transport region including a buffer layer between the emission layer and the second electrode, the buffer layer including a third compound, and an electron transport layer between the buffer layer and the second electrode, the electron transport layer including a fourth compound, wherein, in the emission layer, the first compound is a phosphorescent host and the second compound is a phosphorescent dopant, wherein the first compound and the third compound are different from each other, wherein the first compound and the third compound each independently include both an electron transport group and a hole transport group.Type: GrantFiled: March 15, 2017Date of Patent: June 13, 2023Assignee: Samsung Display Co., Ltd.Inventors: Hwan-Hee Cho, Myeong-Suk Kim, Sung-Wook Kim, Chang-Woong Chu
-
Publication number: 20230180500Abstract: A light-emitting device includes a first electrode; a second electrode that overlaps the first electrode in a plan view; an emission layer disposed between the first electrode and the second electrode; a hole transport region disposed between the first electrode and the emission layer; and an electron transport region disposed between the emission layer and the second electrode, and at least one of the hole transport region or the electron transport region includes a recess portion.Type: ApplicationFiled: July 27, 2022Publication date: June 8, 2023Applicant: Samsung Display Co., LTD.Inventors: Jin-Won SUN, Sung Han KIM, Chang Woong CHU
-
Patent number: 11569484Abstract: The described technology relates to an organic light emitting diode including: a first electrode; a second electrode overlapping the first electrode; an organic emission layer between the first electrode and the second electrode; and a capping layer on the second electrode, wherein the capping layer has an absorption rate of 0.25 or more for light having a wavelength of 405 nm, thereby preventing degradation of the organic emission layer by blocking the light of the harmful wavelength region and providing the organic light emitting diode in which a blue emission efficiency is not deteriorated.Type: GrantFiled: October 8, 2021Date of Patent: January 31, 2023Inventors: Myeong Suk Kim, Sung Wook Kim, Chang Woong Chu, Jin Soo Hwang, Sang Hoon Yim
-
Patent number: 11515481Abstract: A composition for forming organic film, a display device utilizing the composition, and a method of manufacturing the display device are provided. The composition for forming an organic film includes a solvent; and a compound of Formula 1: ArR)k.Type: GrantFiled: January 5, 2018Date of Patent: November 29, 2022Assignee: Samsung Display Co., Ltd.Inventors: Se Hun Kim, Chang Woong Chu, Duk Ki Kim, Dong Woo Shin, Jae Kook Ha
-
Patent number: 11329231Abstract: According to one or more embodiments, 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 may include a first compound represented by one selected from Formulae 1-1 and 1-2, and a second compound represented by Formula 2:Type: GrantFiled: October 18, 2019Date of Patent: May 10, 2022Assignee: Samsung Display Co., Ltd.Inventors: Hwan-Hee Cho, Myeong-Suk Kim, Hee-Yeon Kim, Chang-Woong Chu
-
Patent number: 11322705Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; and an electron transport region between the second electrode and the emission layer, wherein the emission layer includes a first host and a second host, the first host includes a first compound represented by Formula 1, the second host includes at least one selected from a second compound represented by Formula 2 and a third compound represented by Formula 3, and the hole transport region includes an amine-based compound represented by Formula 40:Type: GrantFiled: April 15, 2016Date of Patent: May 3, 2022Assignee: Samsung Display Co., Ltd.Inventors: Myeong-Suk Kim, Sung-Wook Kim, Hwan-Hee Cho, Chang-Woong Chu
-
Publication number: 20220077415Abstract: An organic light emitting diode, including a first electrode; a second electrode facing the first electrode, the second electrode including magnesium; an emission layer between the first electrode and the second electrode; and an electron injection layer between the second electrode and the emission layer, the electron injection layer including a dipole material including a first component and a second component having different polarities, the dipole material including halide, and a content of the magnesium included in the second electrode being in a range of from 10 to 40 volume %.Type: ApplicationFiled: November 17, 2021Publication date: March 10, 2022Inventors: Dong Chan KIM, Won Jong KIM, Eung Do KIM, Dong Kyu SEO, Da Hea IM, Sang Hoon YIM, Chang Woong CHU
-
Publication number: 20220029139Abstract: The described technology relates to an organic light emitting diode including: a first electrode; a second electrode overlapping the first electrode; an organic emission layer between the first electrode and the second electrode; and a capping layer on the second electrode, wherein the capping layer has an absorption rate of 0.25 or more for light having a wavelength of 405 nm, thereby preventing degradation of the organic emission layer by blocking the light of the harmful wavelength region and providing the organic light emitting diode in which a blue emission efficiency is not deteriorated.Type: ApplicationFiled: October 8, 2021Publication date: January 27, 2022Inventors: Myeong Suk KIM, Sung Wook KIM, Chang Woong CHU, Jin Soo HWANG, Sang Hoon YIM
-
Patent number: 11211575Abstract: An organic light emitting diode, including a first electrode; a second electrode facing the first electrode, the second electrode including magnesium; an emission layer between the first electrode and the second electrode; and an electron injection layer between the second electrode and the emission layer, the electron injection layer including a dipole material including a first component and a second component having different polarities, the dipole material including halide, and a content of the magnesium included in the second electrode being in a range of from 10 to 40 volume %.Type: GrantFiled: May 21, 2020Date of Patent: December 28, 2021Assignee: Samsung Display Co., Ltd.Inventors: Dong Chan Kim, Won Jong Kim, Eung Do Kim, Dong Kyu Seo, Da Hea Im, Sang Hoon Yim, Chang Woong Chu
-
Patent number: 11145843Abstract: The described technology relates to an organic light emitting diode including: a first electrode; a second electrode overlapping the first electrode; an organic emission layer between the first electrode and the second electrode; and a capping layer on the second electrode, wherein the capping layer has an absorption rate of 0.25 or more for light having a wavelength of 405 nm, thereby preventing degradation of the organic emission layer by blocking the light of the harmful wavelength region and providing the organic light emitting diode in which a blue emission efficiency is not deteriorated.Type: GrantFiled: January 8, 2020Date of Patent: October 12, 2021Inventors: Myeong Suk Kim, Sung Wook Kim, Chang Woong Chu, Jin Soo Hwang, Sang Hoon Yim
-
Publication number: 20210074924Abstract: An organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer, and the emission layer includes at least one light-emitting material represented by one of Formulas 1 and 2. The organic layer further includes at least one hole-transporting material represented by one of Formulas 2(1) and 2(2).Type: ApplicationFiled: November 16, 2020Publication date: March 11, 2021Inventors: Hwan-Hee CHO, Mi-Kyung KIM, Se-Hun KIM, Dong-Hyun KIM, Chang-Woong CHU
-
Patent number: 10840454Abstract: An organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer, and the emission layer includes at least one light-emitting material represented by one of Formulas 1 and 2. The organic layer further includes at least one hole-transporting material represented by one of Formulas 2(1) and 2(2).Type: GrantFiled: April 20, 2015Date of Patent: November 17, 2020Assignee: Samsung Display Co., Ltd.Inventors: Hwan-Hee Cho, Mi-Kyung Kim, Se-Hun Kim, Dong-Hyun Kim, Chang-Woong Chu
-
Patent number: 10826000Abstract: An organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the emission layer includes a first host and a dopant, the first host is represented by one selected from Formulae 1 and 2, and the dopant is represented by Formula 7: Ar11(L11)a11-(R11)b11]n11??Formula 1 Ar21(L21)a21-(R21)b21]n21??Formula 2 M(L1)n71(L2)n72.??Formula 7 The organic light-emitting device may have high efficiency and long lifespan and may show little change in the efficiency at an x-coordinate (CIEx) value of 0.21.Type: GrantFiled: October 16, 2015Date of Patent: November 3, 2020Assignee: Samsung Display Co., Ltd.Inventors: Naoyuki Ito, Myeong-Suk Kim, Youn-Sun Kim, Sung-Wook Kim, Hwan-Hee Cho, Chang-Woong Chu
-
Patent number: 10790452Abstract: An antiaromatic compound and an organic light-emitting device including the same.Type: GrantFiled: November 4, 2014Date of Patent: September 29, 2020Assignees: Samsung Display Co., Ltd., Industry-Academic Cooperation Foundation Gyeongsang National UniversityInventors: Mi-Kyung Kim, Yun-Hi Kim, Soon-Ki Kwon, Chang-Woong Chu
-
Publication number: 20200287152Abstract: An organic light emitting diode, including a first electrode; a second electrode facing the first electrode, the second electrode including magnesium; an emission layer between the first electrode and the second electrode; and an electron injection layer between the second electrode and the emission layer, the electron injection layer including a dipole material including a first component and a second component having different polarities, the dipole material including halide, and a content of the magnesium included in the second electrode being in a range of from 10 to 40 volume %.Type: ApplicationFiled: May 21, 2020Publication date: September 10, 2020Inventors: Dong Chan KIM, Won Jong KIM, Eung Do KIM, Dong Kyu SEO, Da Hea IM, Sang Hoon YIM, Chang Woong CHU
-
Patent number: 10665809Abstract: An organic light emitting diode, including a first electrode; a second electrode facing the first electrode, the second electrode including magnesium; an emission layer between the first electrode and the second electrode; and an electron injection layer between the second electrode and the emission layer, the electron injection layer including a dipole material including a first component and a second component having different polarities, the dipole material including halide, and a content of the magnesium included in the second electrode being in a range of from 10 to 40 volume %.Type: GrantFiled: February 21, 2019Date of Patent: May 26, 2020Assignee: Samsung Display Co., Ltd.Inventors: Dong Chan Kim, Won Jong Kim, Eung Do Kim, Dong Kyu Seo, Da Hea Im, Sang Hoon Yim, Chang Woong Chu
-
Publication number: 20200144554Abstract: The described technology relates to an organic light emitting diode including: a first electrode; a second electrode overlapping the first electrode; an organic emission layer between the first electrode and the second electrode; and a capping layer on the second electrode, wherein the capping layer has an absorption rate of 0.25 or more for light having a wavelength of 405 nm, thereby preventing degradation of the organic emission layer by blocking the light of the harmful wavelength region and providing the organic light emitting diode in which a blue emission efficiency is not deteriorated.Type: ApplicationFiled: January 8, 2020Publication date: May 7, 2020Inventors: Myeong Suk KIM, Sung Wook KIM, Chang Woong CHU, Jin Soo HWANG, Sang Hoon YIM
-
Patent number: 10581023Abstract: The described technology relates to an organic light emitting diode including: a first electrode; a second electrode overlapping the first electrode; an organic emission layer between the first electrode and the second electrode; and a capping layer on the second electrode, wherein the capping layer has an absorption rate of 0.25 or more for light having a wavelength of 405 nm, thereby preventing degradation of the organic emission layer by blocking the light of the harmful wavelength region and providing the organic light emitting diode in which a blue emission efficiency is not deteriorated.Type: GrantFiled: September 19, 2018Date of Patent: March 3, 2020Assignee: Samsung Display Co., Ltd.Inventors: Myeong Suk Kim, Sung Wook Kim, Chang Woong Chu, Jin Soo Hwang, Sang Hoon Yim