Patents by Inventor Illsoo Park
Illsoo Park 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: 12207532Abstract: A method of manufacturing a display apparatus includes forming a first electrode on a substrate, forming a pixel-defining layer on the first electrode, the pixel-defining layer including an opening through which at least part of the first electrode is exposed, and performing a first dry cleaning on a surface of the at least part of the first electrode that is exposed through the opening. An indium-fluorine bond is formed on the surface of the at least part of the first electrode through the first dry cleaning.Type: GrantFiled: January 12, 2022Date of Patent: January 21, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sijin Sung, Jaehong Kim, Hyomin Kim, Illsoo Park, Jongseok Han
-
Publication number: 20240188388Abstract: A display panel includes a display element layer including a pixel defining film having a pixel opening defined therein and a light emitting element. An encapsulation layer is disposed on the display element layer. The encapsulation layer includes a first inorganic encapsulation film. An organic encapsulation film is disposed on the first inorganic encapsulation film. A second inorganic encapsulation film is disposed on the organic encapsulation film. The second inorganic encapsulation film has a refractive index in a range of about 1.89 to about 2.20.Type: ApplicationFiled: September 5, 2023Publication date: June 6, 2024Inventors: SIJIN Sung, Shogo Nishizaki, Jaehyun Kim, Illsoo Park
-
Patent number: 11910626Abstract: A light-emitting device includes: a substrate including a first subpixel, as second subpixel, and a third subpixel; a plurality of first electrodes respectively in the first subpixel, the second subpixel, and the third subpixel of the substrate; a second electrode facing the first electrode; an emission layer located between the plurality of first electrodes and the second electrode; a hole injection layer between the plurality of first electrodes and the emission layer; a first common layer between the hole injection layer and the emission layer, the first common layer integrated with the first subpixel, the second subpixel, and the third subpixel; a second common layer between the hole injection layer and the first common layer, the second common layer integrated with the first subpixel, the second subpixel, and the third subpixel, wherein the first common layer and the second common layer satisfy certain conditions.Type: GrantFiled: September 26, 2020Date of Patent: February 20, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hyomin Kim, Illsoo Park, Sijin Sung, Gina Yoo, Sunhwa Kim, Jaehong Kim, Heeseong Jeong, Jongseok Han
-
Publication number: 20230380205Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer located between the first electrode and the second electrode; and an electron transport region located between the second electrode and the emission layer, wherein the electron transport region includes an electron injection layer including a first material and a second material, the first material and the second material each independently include an alkali metal, an alkaline earth metal, a rare earth metal, or any combination thereof, each of the first material and the second material does not include any halide of the alkali metal, and the first material and the second material are different from each other.Type: ApplicationFiled: May 12, 2023Publication date: November 23, 2023Inventors: Jongseok Han, Dalho Kim, Illsoo Park, Heeseong Jeong, Jaehong Kim, Hyomin Kim, Eunji Park, Sijin Sung
-
Publication number: 20220359851Abstract: A method of manufacturing a display apparatus includes forming a first electrode on a substrate, forming a pixel-defining layer on the first electrode, the pixel-defining layer including an opening through which at least part of the first electrode is exposed, and performing a first dry cleaning on a surface of the at least part of the first electrode that is exposed through the opening. An indium-fluorine bond is formed on the surface of the at least part of the first electrode through the first dry cleaning.Type: ApplicationFiled: January 12, 2022Publication date: November 10, 2022Applicant: Samsung Display Co., Ltd.Inventors: Sijin SUNG, Jaehong KIM, Hyomin KIM, Illsoo PARK, Jongseok HAN
-
Patent number: 11404641Abstract: A method of manufacturing a display apparatus includes: forming a pixel electrode on a substrate; forming a pixel defining layer covering at least an edge of the pixel electrode and including an opening exposing a part of the pixel electrode; performing first dry cleaning by adding oxygen gas (O2) to a surface of the pixel electrode exposed by the opening in the pixel defining layer, wherein the oxygen gas (O2) is added at a flow rate in a range of about 1,200 sccm to about 3,600 sccm; performing second dry cleaning after the first dry cleaning; forming an intermediate layer on the pixel electrode after the second dry cleaning; and forming an opposite electrode on the intermediate layer and the pixel defining layer.Type: GrantFiled: August 21, 2020Date of Patent: August 2, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sijin Sung, Hyomin Kim, Illsoo Park, Gina Yoo, Jongseok Han
-
Publication number: 20210210686Abstract: A method of manufacturing a display apparatus includes: forming a pixel electrode on a substrate; forming a pixel defining layer covering at least an edge of the pixel electrode and including an opening exposing a part of the pixel electrode; performing first dry cleaning by adding oxygen gas (O2) to a surface of the pixel electrode exposed by the opening in the pixel defining layer, wherein the oxygen gas (O2) is added at a flow rate in a range of about 1,200 sccm to about 3,600 sccm; performing second dry cleaning after the first dry cleaning; forming an intermediate layer on the pixel electrode after the second dry cleaning; and forming an opposite electrode on the intermediate layer and the pixel defining layer.Type: ApplicationFiled: August 21, 2020Publication date: July 8, 2021Inventors: Sijin SUNG, Hyomin KIM, Illsoo PARK, Gina YOO, Jongseok HAN
-
Patent number: 11043646Abstract: An organic light-emitting device including: a first electrode, a hole transport region including a first hole transport layer (HTL), an emission layer, an electron transport region; and a second electrode; wherein the first HTL includes a first compound and a second compound, the emission layer includes a third compound and a fourth compound, the electron affinity of the second compound is greater than the electron affinity of the first compound, a lowest unoccupied molecular orbital (LUMO) energy level of the fourth compound is greater than a LUMO energy level of the third compound, the second compound and the third compound are different from each other, and the minimum anionic dissociation energy of the second compound is greater than the triplet energy of the third compound.Type: GrantFiled: April 21, 2016Date of Patent: June 22, 2021Assignee: Samsung Display Co., Ltd.Inventors: Sunghun Lee, Seulong Kim, Illsoo Park, Hyosup Shin, Sunwoo Kang, Eunkyung Koh, Minkyung Kim, Taekyung Kim, Jaeyong Lee
-
Publication number: 20210184148Abstract: A light-emitting device includes: a substrate including a first subpixel, as second subpixel, and a third subpixel; a plurality of first electrodes respectively in the first subpixel, the second subpixel, and the third subpixel of the substrate; a second electrode facing the first electrode; an emission layer located between the plurality of first electrodes and the second electrode; a hole injection layer between the plurality of first electrodes and the emission layer; a first common layer between the hole injection layer and the emission layer, the first common layer integrated with the first subpixel, the second subpixel, and the third subpixel; a second common layer between the hole injection layer and the first common layer, the second common layer integrated with the first subpixel, the second subpixel, and the third subpixel, wherein the first common layer and the second common layer satisfy certain conditions.Type: ApplicationFiled: September 26, 2020Publication date: June 17, 2021Inventors: Hyomin KIM, Illsoo PARK, Sijin SUNG, Gina YOO, Sunhwa KIM, Jaehong KIM, Heeseong JEONG, Jongseok HAN
-
Patent number: 10879470Abstract: Provided are condensed cyclic compounds represented by Formula 1: and an organic light-emitting device having the compounds which has decreased driving voltage, higher efficiency, and increased overall lifespan.Type: GrantFiled: December 9, 2016Date of Patent: December 29, 2020Assignee: Samsung Display Co., Ltd.Inventors: Seulong Kim, Illsoo Park, Hyosup Shin, Sunghun Lee
-
Patent number: 10069077Abstract: A compound for an organic light-emitting device, the compound represented by Chemical Formula 1 and satisfying Mathematical Formula 1: ES1<2ET1<ET2,??Mathematical Formula 1 wherein, in Mathematical Formula 1, ES1 is a first singlet energy of the compound; ET1 is a first triplet energy of the compound; and ET2 is a second triplet energy of the compound.Type: GrantFiled: March 10, 2015Date of Patent: September 4, 2018Assignee: Samsung Display Co., Ltd.Inventors: Illsoo Park, Seulong Kim, Hyosup Shin
-
Patent number: 9812665Abstract: A display apparatus includes an emission portion disposed on a substrate and comprising an intermediate layer; and an encapsulation portion sealing the emission portion by overlapping the emission portion, wherein the intermediate layer comprises at least two organic materials, the organic materials having different phase transition temperatures at a first saturated vapor pressure in a range from 5×10?4 Torr to 3×10?2 Torr, and the difference between the phase transition temperatures being less than or equal to 5° C.Type: GrantFiled: August 31, 2016Date of Patent: November 7, 2017Assignee: Samsung Display Co., Ltd.Inventors: Illsoo Park, Seulong Kim, Sunghun Lee, Jaeyong Lee, Mugyeom Kim, Hyosup Shin
-
Publication number: 20170170401Abstract: Provided are condensed cyclic compounds and an organic light-emitting device having the compounds which has decreased driving voltage, higher efficiency, and increased overall lifespan.Type: ApplicationFiled: December 9, 2016Publication date: June 15, 2017Inventors: Seulong Kim, Illsoo Park, Hyosup Shin, Sunghun Lee
-
Publication number: 20170069864Abstract: An organic light-emitting device including: a first electrode, a hole transport region including a first hole transport layer (HTL), an emission layer, an electron transport region; and a second electrode; wherein the first HTL includes a first compound and a second compound, the emission layer includes a third compound and a fourth compound, the electron affinity of the second compound is greater than the electron affinity of the first compound, a lowest unoccupied molecular orbital (LUMO) energy level of the fourth compound is greater than a LUMO energy level of the third compound, the second compound and the third compound are different from each other, and the minimum anionic dissociation energy of the second compound is greater than the triplet energy of the third compound.Type: ApplicationFiled: April 21, 2016Publication date: March 9, 2017Inventors: Sunghun Lee, Seulong Kim, Illsoo Park, Hyosup Shin, Sunwoo Kang, Eunkyung Koh, Minkyung Kim, Taekyung Kim, Jaeyong Lee
-
Publication number: 20170062758Abstract: A display apparatus includes an emission portion disposed on a substrate and comprising an intermediate layer; and an encapsulation portion sealing the emission portion by overlapping the emission portion, wherein the intermediate layer comprises at least two organic materials, the organic materials having different phase transition temperatures at a first saturated vapor pressure in a range from 5×10?4 Torr to 3×10?2 Torr, and the difference between the phase transition temperatures being less than or equal to 5° C.Type: ApplicationFiled: August 31, 2016Publication date: March 2, 2017Inventors: Illsoo PARK, Seulong KIM, Sunghun LEE, Jaeyong LEE, Mugyeom KIM, Hyosup SHIN
-
Publication number: 20160079543Abstract: A compound for an organic light-emitting device, the compound represented by Chemical Formula 1 and satisfying Mathematical Formula 1: ES1<2ET1<ET2,??Mathematical Formula 1 wherein, in Mathematical Formula 1, ES1 is a first singlet energy of the compound; ET1 is a first triplet energy of the compound; and ET2 is a second triplet energy of the compound.Type: ApplicationFiled: March 10, 2015Publication date: March 17, 2016Inventors: Illsoo Park, Seulong Kim, Hyosup Shin