Patents by Inventor Ki Woo Lee

Ki Woo Lee 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: 12069917
    Abstract: A display device includes a substrate including a display area including pixels, and a light transmissive area including a portion in the display area, and signal lines disposed in the display area and electrically connected with the pixels, where the signal lines include a first signal line on a first side, a second signal line on a second side and arranged with the first signal line in a first direction, and a third signal line on a third side, and the third signal line is arranged with the first signal line and the second signal line in a second direction, the first and second signal lines are insulated from each other in the display area, and a length of the third signal line is longer than a length of the second signal line in the first direction.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: August 20, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Hoon Lee, Ki Nyeng Kang, Sun Kwang Kim, Tae Woo Kim, Jong Hyun Choi, Tae Hoon Yang
  • Patent number: 12060372
    Abstract: Provided is a compound of Chemical Formula 1: wherein: Y is a direct bond, O or S; A1 and A2 are each independently a benzene ring, a naphthalene ring, or ?with the proviso that at least one of them is a naphthalene ring or each X is independently CR1R2, SiR3R4, NR5, O, S, or SO2; R1 to R5 are each independently hydrogen, deuterium, or a substituted or unsubstituted: C1-60 alkyl, C3-60 cycloalkyl, or C6-60 aryl; L1 and L2 are each independently a direct bond, or a substituted or unsubstituted C6-60 arylene or C2-60 heteroarylene; B1 and B2 are each independently *—NR6R7; and R?1 and R?2 are each independently hydrogen, deuterium, halogen, cyano, or a substituted or unsubstituted: C1-60 alky, C1-60 alkoxy, C1-60 haloalkyl, C1-60 haloalkoxy, tri(C1-60 alkyl)silyl, or C6-60 aryl; and and an organic light emitting diode comprising: a first electrode; a second electrode opposite to the first electrode; and at least one organic material layer between the first electrode and the se
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: August 13, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Jung Min Yoon, Kongkyeom Kim, Ki Dong Koo, Young Seok Kim, Joongsuk Oh, Min Woo Lee
  • Patent number: 12054609
    Abstract: A thermoplastic resin composition comprises: about 100 parts by weight of a polycarbonate resin; about 3 parts by weight to about 20 parts by weight of a rubber-modified aromatic vinyl copolymer resin; about 12 parts by weight to about 28 parts by weight of talc having an average particle size of about 8 ?m to about 20 ?m and a blackness degree L* of less than about 90; about 5 parts by weight to about 20 parts by weight of acicular inorganic fillers; and about 10 parts by weight to about 30 parts by weight of a phosphorus flame retardant. The thermoplastic resin composition can have good properties in terms of light shielding, impact resistance, dimensional stability, flame retardancy, balance therebetween, and the like.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: August 6, 2024
    Assignee: Lotte Chemical Corporation
    Inventors: Ki Hong Choi, Tae Gon Kang, Dong Yeop Shin, Ye Seul Shin, Sung Woo Yang, Seo Yun Lee, Dong In Ha
  • Patent number: 12057567
    Abstract: The present invention relates to an electrode slurry coating device and method, wherein the heights of first and second slot die heads for discharging active material can be controlled according to time to improve process efficiency and reduce defect rates when forming an active material layer having a double layer structure.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: August 6, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Taek Soo Lee, Sang Hoon Choy, Ki Tae Kim, Cheol Woo Kim, Young Joon Jo
  • Publication number: 20240246106
    Abstract: A system for depositing a material is provided. The system includes a die for extruding the material along a principal deposition direction through an opening of the die. The die includes a cavity fluidly connected to the opening, and a flow guide extending through the cavity towards the opening for shaping a flow of the material extruded via the opening and flowing past a side of the flow guide in the cavity. The side of the flow guide comprises a widening side portion of which a width of the widening side portion increases along the principal deposition direction towards the opening.
    Type: Application
    Filed: February 17, 2023
    Publication date: July 25, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jong Goo PARK, Ki Hun KIM, Kyoung Rok MUN, Jong Woo SHIN, Sung Mo KANG, Jae Pil LEE
  • Patent number: 11054615
    Abstract: Provided are an optical lens assembly and an electronic apparatus including the same, according to various embodiments. The optical lens assembly includes a bending portion including a reflection surface for reflecting light and at least one surface having a refractive power, and a plurality of lenses arranged between the bending portion and an image plane. Other embodiments are possible.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: July 6, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ki-woo Lee
  • Patent number: 10908387
    Abstract: Provided are an optical lens assembly and an electronic apparatus having the same. The optical lens assembly having a plurality of lenses arranged from an object side toward an image side where an image sensor is disposed, includes a bending unit configured to reflect light input from the object side in a first direction toward a second direction; and a first lens group having negative refractive power, a second lens group having positive refractive power, and a third lens group having negative refractive power, which are arranged in the second direction in order from the bending unit toward the image side. The first lens group includes a first lens having negative refractive power and disposed adjacent to the bending unit and a second lens having positive refractive power.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: February 2, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ki-woo Lee
  • Publication number: 20190331897
    Abstract: Provided are an optical lens assembly and an electronic apparatus including the same, according to various embodiments. The optical lens assembly includes a bending portion including a reflection surface for reflecting light and at least one surface having a refractive power, and a plurality of lenses arranged between the bending portion and an image plane. Other embodiments are possible.
    Type: Application
    Filed: April 13, 2017
    Publication date: October 31, 2019
    Inventor: Ki-woo LEE
  • Patent number: 10261295
    Abstract: An optical system is provided. The optical system includes a first lens group that has a positive refractive power, a second lens group that has a negative refractive power, a third lens group that has a negative refractive power, a fourth lens group that has a positive refractive power, and a fifth lens group that includes one or more lens groups, in sequence from an object, wherein the first lens group and the fifth lens group are fixed and the third lens group moves parallel to an optical axis to perform focusing when adjusting a magnification of the optical system.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: April 16, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Tae-Kun Lee, Ki-Woo Lee
  • Publication number: 20190086638
    Abstract: Provided are an optical lens assembly and an electronic apparatus having the same. The optical lens assembly having a plurality of lenses arranged from an object side toward an image side where an image sensor is disposed, includes a bending unit configured to reflect light input from the object side in a first direction toward a second direction; and a first lens group having negative refractive power, a second lens group having positive refractive power, and a third lens group having negative refractive power, which are arranged in the second direction in order from the bending unit toward the image side. The first lens group includes a first lens having negative refractive power and disposed adjacent to the bending unit and a second lens having positive refractive power.
    Type: Application
    Filed: September 11, 2018
    Publication date: March 21, 2019
    Inventor: Ki-woo LEE
  • Patent number: 10215968
    Abstract: A curved-type optical lens assembly and an electronic device are provided. The optical lens assembly focuses an image of an object on the image sensor. The optical lens assembly includes a reflector configured to reflect incident light, a lens array including a plurality of lenses arranged between the reflector and the image sensor, a first light blocker arranged at an object side of the reflector to block the light, and a second light blocker arranged at an image side of the reflector to block the light. The optical lens assembly further includes a first optical axis of the light proceeding towards the reflector and a second optical axis of the light reflected by the reflector.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: February 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-cheol Bae, Shi-hong Park, Ki-woo Lee
  • Publication number: 20180081149
    Abstract: A curved-type optical lens assembly and an electronic device are provided. The optical lens assembly focuses an image of an object on the image sensor. The optical lens assembly includes a reflector configured to reflect incident light, a lens array including a plurality of lenses arranged between the reflector and the image sensor, a first light blocker arranged at an object side of the reflector to block the light, and a second light blocker arranged at an image side of the reflector to block the light. The optical lens assembly further includes a first optical axis of the light proceeding towards the reflector and a second optical axis of the light reflected by the reflector.
    Type: Application
    Filed: September 6, 2017
    Publication date: March 22, 2018
    Inventors: Jae-cheol BAE, Shi-hong PARK, Ki-woo LEE
  • Publication number: 20170123195
    Abstract: An optical system is provided. The optical system includes a first lens group that has a positive refractive power, a second lens group that has a negative refractive power, a third lens group that has a negative refractive power, a fourth lens group that has a positive refractive power, and a fifth lens group that includes one or more lens groups, in sequence from an object, wherein the first lens group and the fifth lens group are fixed and the third lens group moves parallel to an optical axis to perform focusing when adjusting a magnification of the optical system.
    Type: Application
    Filed: November 3, 2016
    Publication date: May 4, 2017
    Inventors: Tae-Kun LEE, Ki-Woo LEE
  • Patent number: 9377604
    Abstract: A zoom lens includes: a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive refractive power; a fourth lens group having a negative refractive power; and a fifth lens group having a positive refractive power, wherein the first to fifth lens groups are sequentially arranged in a direction from an object side, during zooming from a wide-angle position to a telephoto position, the first to fifth lens groups are moved, the third lens group includes a first positive lens, a second negative lens, and a third positive lens, and the second negative lens of the third lens group includes a concave object-side surface. The zoom lens may be part of an electronic apparatus, such as a photographing apparatus.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: June 28, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ki-woo Lee
  • Publication number: 20150160433
    Abstract: A zoom lens includes: a first lens group having a positive refractive power; a second lens group having a negative refractive power; a third lens group having a positive refractive power; a fourth lens group having a negative refractive power; and a fifth lens group having a positive refractive power, wherein the first to fifth lens groups are sequentially arranged in a direction from an object side, during zooming from a wide-angle position to a telephoto position, the first to fifth lens groups are moved, the third lens group includes a first positive lens, a second negative lens, and a third positive lens, and the second negative lens of the third lens group includes a concave object-side surface. The zoom lens may be part of an electronic apparatus, such as a photographing apparatus.
    Type: Application
    Filed: May 21, 2014
    Publication date: June 11, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Ki-woo Lee
  • Patent number: 8253008
    Abstract: There is provided an AMTEC (alkali metal thermal-electric converter) with a heat pipe and more particularly, to an AMTEC with a heat pipe minimized a heating part and a condensation part of the AMTEC and improved in efficiency of thermal to electric conversion through installing the heating and cooling heat pipes in the AMTEC, in which a metal fluid is heated by latent heat of an operating fluid of the heat pipe, instead of the heat conduction from a heat source, thereby reducing a temperature difference needed for heat transfer to vaporize the metal fluid even by a heat source of a lower temperature than a conventional heat source; improving a cooling performance in a condensation part to result in the high efficiency of thermal to electric conversion; using no additional driving components for driving the heat pipe.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: August 28, 2012
    Assignee: Korea Institute of Energy Research
    Inventors: Ki-Woo Lee, Won-Pyo Chun
  • Publication number: 20110168222
    Abstract: There is provided an AMTEC (alkali metal thermal-electric converter) with a heat pipe and more particularly, to an AMTEC with a heat pipe minimized a heating part and a condensation part of the AMTEC and improved in efficiency of thermal to electric conversion through installing the heating and cooling heat pipes in the AMTEC, in which a metal fluid is heated by latent heat of an operating fluid of the heat pipe, instead of the heat conduction from a heat source, thereby reducing a temperature difference needed for heat transfer to vaporize the metal fluid even by a heat source of a lower temperature than a conventional heat source; improving a cooling performance in a condensation part to result in the high efficiency of thermal to electric conversion; using no additional driving components for driving the heat pipe.
    Type: Application
    Filed: September 24, 2008
    Publication date: July 14, 2011
    Inventors: Ki-Woo Lee, Won-Pyo Chun
  • Patent number: 7791818
    Abstract: A zoom lens system includes, arranged sequentially from an object side, a first lens group including at least one reflective optical member changing the optical path of an incident light ray, and having positive refractive power; a second lens group having negative refractive power; a third lens group having positive refractive power; and a fourth lens group having positive refractive power, and during a magnification change from a wide-angle position to a telephoto position, the first lens group and the third lens group are not moved, the second lens group is moved from the object side towards an image side, and the fourth lens group is linearly moved from the image side towards the object side.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: September 7, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ki-woo Lee
  • Publication number: 20090161228
    Abstract: A zoom lens system includes, arranged sequentially from an object side, a first lens group including at least one reflective optical member changing the optical path of an incident light ray, and having positive refractive power; a second lens group having negative refractive power; a third lens group having positive refractive power; and a fourth lens group having positive refractive power, and during a magnification change from a wide-angle position to a telephoto position, the first lens group and the third lens group are not moved, the second lens group is moved from the object side towards an image side, and the fourth lens group is linearly moved from the image side towards the object side.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 25, 2009
    Applicant: Samsung Techwin Co., Ltd.
    Inventor: Ki-woo Lee
  • Patent number: 7365912
    Abstract: A compact zoom lens suitable for an imaging optical system using a solid-state image sensing device is provided. The zoom lens includes a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power. The first through third lens groups are sequentially arranged from an object side toward an image side. The first, second, and third lens groups move when magnification changes from the wide-angle position to the telephoto position, and a refractive index G1n of at least one lens element included in the first lens group satisfies 1.90<G1n<2.00.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: April 29, 2008
    Assignee: Samsung Techwin Co., Ltd.
    Inventor: Ki-woo Lee