Patents by Inventor Youngeun Park
Youngeun 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: 12058911Abstract: Provided is a color filter having improved light efficiency and color reproducibility. The color filter includes: a substrate having a plurality of pixel areas and a light blocking area surrounding the plurality of pixel areas; a light blocking layer on the light blocking area; a first color conversion layer on a first pixel area among the plurality of pixel areas and configured to convert incident light into light of a first color; a first color filter layer between the substrate and the first color conversion layer and configured to selectively transmit the light of the first color emitted from the first color conversion layer; and a light reflection layer between the first color conversion layer and the first color filter layer and including a reflective material.Type: GrantFiled: June 13, 2019Date of Patent: August 6, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Youngeun Park, Gunshik Kim, Junghwan Yi, Mira Gwon, Seungin Baek, Sangyun Lim, Sujin Choi, Younho Han
-
Publication number: 20210351238Abstract: Provided is a color filter having improved light efficiency and color reproducibility. The color filter includes: a substrate having a plurality of pixel areas and a light blocking area surrounding the plurality of pixel areas; a light blocking layer on the light blocking area; a first color conversion layer on a first pixel area among the plurality of pixel areas and configured to convert incident light into light of a first color; a first color filter layer between the substrate and the first color conversion layer and configured to selectively transmit the light of the first color emitted from the first color conversion layer; and a light reflection layer between the first color conversion layer and the first color filter layer and including a reflective material.Type: ApplicationFiled: June 13, 2019Publication date: November 11, 2021Inventors: Youngeun Park, Gunshik Kim, Junghwan Yi, Mira Gwon, Seungin Baek, Sangyun Lim, Sujin Choi, Younho Han
-
Patent number: 11092841Abstract: A color filter includes a substrate including pixel areas and a light-shielding area which is disposed between adjacent pixels areas; and a color conversion layer which color-converts incident light of an incident color and emits color-converted light toward the substrate, the color conversion layer including a first color conversion pattern in a first pixel area among the pixel areas and with which the incident light of the incident color is converted into light of a first color; and a second color conversion pattern in a second pixel area among the pixel areas and with which the incident light of the incident color is converted into light of a second color; and a partition wall in the light-shielding area and between the first color conversion pattern and the second color conversion pattern, the partition wall including a light-scattering material which scatters light incident thereto.Type: GrantFiled: February 15, 2019Date of Patent: August 17, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seungin Baek, Mira Gwon, Gunshik Kim, Youngeun Park, Junghwan Lee, Yunmo Chung, Sujin Choi, Younho Han, Jungbae Song, Daewoo Lee
-
Patent number: 10989859Abstract: A display apparatus includes a light guide member disposed below a display member. A light source configured to generate light is disposed adjacent to the light guide member. The light guide member includes a plurality of diffraction on the light guide member. The diffraction patterns are spaced apart from each other in the first direction. The plurality of diffraction patterns diffract incident light, which is incident at an incident angle, to change the incident light to diffraction light having a diffraction angle. The incident angle is defined as an angle between the incident light and a normal line that is perpendicular to a top surface or a bottom surface of the light guide member. The diffraction angle, which is defined as an angle between the diffraction light and the normal line, has a magnitude less than that of the incident angle.Type: GrantFiled: January 25, 2019Date of Patent: April 27, 2021Assignees: SAMSUNG DISPLAY CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SEJONG CAMPUSInventors: Seungin Baek, Sujin Choi, Hwi Kim, Mira Gwon, Youngeun Park, Jongha Park, Junghwan Yi, Young jin Jeon, Jungbeom Choi, Younho Han
-
Patent number: 10725339Abstract: A display device includes a display panel, a light guide plate disposed under the display panel, a light source disposed adjacent to one side surface of the light guide plate that generates a first light, a first refractive layer disposed between the light source and the one side surface of the light guide plate that has a refractive index greater than a refractive index of the light guide plate, and a second refractive layer disposed between the display panel and the light guide plate that has a refractive index less than the refractive index of the light guide plate. The first refractive layer includes a convex portion that protrudes into the one side surface of the light guide plate.Type: GrantFiled: March 19, 2019Date of Patent: July 28, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seungin Baek, Jinho Park, Sujin Choi, Mira Gwon, Youngeun Park, Seon-Tae Yoon, Kwangkeun Lee, Junghwan Yi, Younho Han
-
Publication number: 20200089047Abstract: A color filter includes a substrate including pixel areas and a light-shielding area which is disposed between adjacent pixels areas; and a color conversion layer which color-converts incident light of an incident color and emits color-converted light toward the substrate, the color conversion layer including a first color conversion pattern in a first pixel area among the pixel areas and with which the incident light of the incident color is converted into light of a first color; and a second color conversion pattern in a second pixel area among the pixel areas and with which the incident light of the incident color is converted into light of a second color; and a partition wall in the light-shielding area and between the first color conversion pattern and the second color conversion pattern, the partition wall including a light-scattering material which scatters light incident thereto.Type: ApplicationFiled: February 15, 2019Publication date: March 19, 2020Inventors: Seungin Baek, Mira Gwon, Gunshik Kim, Youngeun Park, Junghwan LEE, Yunmo Chung, Sujin Choi, Younho Han, Jungbae Song, Daewoo Lee
-
Publication number: 20190302535Abstract: A display device includes a display panel, a light guide plate disposed under the display panel, a light source disposed adjacent to one side surface of the light guide plate that generates a first light, a first refractive layer disposed between the light source and the one side surface of the light guide plate that has a refractive index greater than a refractive index of the light guide plate, and a second refractive layer disposed between the display panel and the light guide plate that has a refractive index less than the refractive index of the light guide plate. The first refractive layer includes a convex portion that protrudes into the one side surface of the light guide plate.Type: ApplicationFiled: March 19, 2019Publication date: October 3, 2019Inventors: SEUNGIN BAEK, JINHO PARK, SUJIN CHOI, MIRA GWON, YOUNGEUN PARK, SEON-TAE YOON, KWANGKEUN LEE, JUNGHWAN YI, YOUNHO HAN
-
Publication number: 20190243054Abstract: A display apparatus includes a light guide member disposed below a display member. A light source configured to generate light is disposed adjacent to the light guide member. The light guide member includes a plurality of diffraction on the light guide member. The diffraction patterns are spaced apart from each other in the first direction. The plurality of diffraction patterns diffract incident light, which is incident at an incident angle, to change the incident light to diffraction light having a diffraction angle. The incident angle is defined as an angle between the incident light and a normal line that is perpendicular to a top surface or a bottom surface of the light guide member. The diffraction angle, which is defined as an angle between the diffraction light and the normal line, has a magnitude less than that of the incident angle.Type: ApplicationFiled: January 25, 2019Publication date: August 8, 2019Inventors: Seungin Baek, Sujin Choi, Hwi Kim, Mira Gwon, Youngeun Park, Jongha Park, Junghwan Yi, Young jin Jeon, Jungbeom Choi, Younho Han
-
Patent number: 6981266Abstract: A network management system and method is disclosed that can add or modify, for example, a managed object, without recompiling or stopping operations of an executing network management system. Thus, preferred embodiments of the present invention allow a dynamic management of managed objects in a network management system.Type: GrantFiled: September 14, 1999Date of Patent: December 27, 2005Assignee: LG Information & Communications, Ltd.Inventors: Sunshin An, Dongjin Han, Wenzhe Cui, Youngeun Park, Shinhyuk Kang, Soo Hyun Park