Patents by Inventor Suk-sun Lee
Suk-sun 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).
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Patent number: 11987861Abstract: A method according to an embodiment is for recovering a valuable metal from a waste electrode material of a lithium secondary battery by using lithium carbonate. An anode-cathode mixed electrode material that has been separated by draining, crushing, screening, and sorting a waste lithium secondary battery is preprocessed. A precipitation operation performed by adding lithium carbonate (Li2CO3) to a metal melt acquired by performing sulfuric acid dissolution using sulfuric acid. A valuable metal such as nickel, cobalt, manganese, aluminum, and copper is recovered as a residue in the form of a carbonate composite, and a lithium sulfate (Li2SO4) aqueous solution including lithium is recovered as a filtrate.Type: GrantFiled: May 21, 2021Date of Patent: May 21, 2024Assignee: ECOPRO INNOVATION CO., LTD.Inventors: Suk Joon Park, Myung Gyu Lee, Jeong Sik Hong, So Yeong Byun, Gwang Seok Lee, Jong Sun Park, Beom Seok Seo, Min Woo Lee, Da Mo A Kim, Hui Sang Kim, A Ram Park
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Patent number: 10564467Abstract: A liquid crystal display device which may prevent a color mixing phenomenon and a driving method thereof, the liquid crystal display device including a first substrate and a second substrate facing each other; a thin film transistor disposed inside the first substrate; a color conversion layer disposed inside the second substrate and including a plurality of quantum rods; a liquid crystal layer disposed between the first substrate and the second substrate; a first polarizer disposed outside the first substrate; and a second polarizer disposed outside the second substrate.Type: GrantFiled: January 12, 2016Date of Patent: February 18, 2020Assignee: Samsung Display Co., Ltd.Inventors: Jong Hyuk Kang, Hyun Min Cho, Jae Byung Park, Jae Woong Kang, Dae Hyun Kim, Suk Sun Lee, Joo Yeol Lee, Hyun Deok Im, Sung-Jin Hong
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Publication number: 20160320664Abstract: A liquid crystal display device which may prevent a color mixing phenomenon and a driving method thereof, the liquid crystal display device including a first substrate and a second substrate facing each other; a thin film transistor disposed inside the first substrate; a color conversion layer disposed inside the second substrate and including a plurality of quantum rods; a liquid crystal layer disposed between the first substrate and the second substrate; a first polarizer disposed outside the first substrate; and a second polarizer disposed outside the second substrate.Type: ApplicationFiled: January 12, 2016Publication date: November 3, 2016Inventors: Jong Hyuk Kang, Hyun Min Cho, Jae Byung Park, Jae Woong Kang, Dae Hyun Kim, Suk Sun Lee, Joo Yeol Lee, Hyun Deok Im, Sung-Jin Hong
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Patent number: 6972807Abstract: A projection television and a convergence control method thereof are provided.Type: GrantFiled: August 29, 2002Date of Patent: December 6, 2005Assignee: Samsung Electronics Co., Ltd.Inventors: Suk-sun Lee, Il-hyun Ryu
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Patent number: 6926412Abstract: A projection display apparatus with red (R), green (G), and blue (B) monochromatic cathode ray tubes (CRTs) and three projection lenses, disposed in front of the R, G, and B monochromatic CRTs respectively, along with a screen having a predetermined curvature concave in a view direction to control a view distance and focus the light rays projected from the respective projection lenses. The screen includes a Fresnel screen converting the light rays incident from the projection lenses to have predetermined optical directional characteristics in an optical axis direction, and a Lenticular screen, disposed in front of the Fresnel screen and having a curvature corresponding to the Fresnel screen, for forming images from the light rays passing through the Fresnel screen, controlling a view angle, and enhancing an entire screen luminance. The view distance is determined based on a focal length and a curvature radius of the Fresnel screen.Type: GrantFiled: December 9, 2003Date of Patent: August 9, 2005Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-gi Kim, Seok-il Yoon, Suk-sun Lee
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Publication number: 20040125345Abstract: A projection display apparatus with red (R), green (G), and blue (B) monochromatic cathode ray tubes (CRTs) and three projection lenses, disposed in front of the R, G, and B monochromatic CRTs respectively, along with a screen having a predetermined curvature concave in a view direction to control a view distance and focus the light rays projected from the respective projection lenses. The screen includes a Fresnel screen converting the light rays incident from the projection lenses to have predetermined optical directional characteristics in an optical axis direction, and a Lenticular screen, disposed in front of the Fresnel screen and having a curvature corresponding to the Fresnel screen, for forming images from the light rays passing through the Fresnel screen, controlling a view angle, and enhancing an entire screen luminance. The view distance is determined based on a focal length and a curvature radius of the Fresnel screen.Type: ApplicationFiled: December 9, 2003Publication date: July 1, 2004Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung-Gi Kim, Seok-Il Yoon, Suk-Sun Lee
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Publication number: 20040008289Abstract: Provided are an apparatus and method for controlling CRT focusing in a television, and more particularly, an apparatus and method for separately controlling focusing of R, G, and B cathode ray tubes in a television using a triple tube type optical system based on a digital method. The apparatus includes a memory, a controller, and an R/G/B focusing correction signal generator. The memory stores focusing correction data of R, G, and B cathode ray tubes for a position of a screen. The controller reads and outputs the focusing correction data of the R, G, and B cathode ray tubes from the memory for the position of the screen, based on horizontal and vertical synchronization signals. The R/G/B focusing correction signal generator calculates the focusing correction data of the R, G, and B cathode ray tubes read from the memory and generates R, G, and B analog focusing correction signals that will be applied to R, G, and B coils.Type: ApplicationFiled: June 27, 2003Publication date: January 15, 2004Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Gyu-Hwa Hwang, Suk-Sun Lee, Jong-Sul Min, Il-Hyeon Ryu, Nam-Gyu Lim
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Patent number: 6600276Abstract: A convergence control method and apparatus for a projection television are provided. The convergence control apparatus includes an image signal decoder, a convergence control unit, and a main microcomputer. The image signal decoder processes an input image signal and generates a data signal and horizontal and vertical synchronization signals, and a start signal indicating the start of either the horizontal and vertical synchronization signals. The convergence control unit performs convergence adjustment according to a convergence control command it receives, and generates a completion signal when convergence adjustment is complete. The main microcomputer inputs the convergence control command to the convergence control unit when the start signal is input from the image signal decoder, and performs a control operation to display the image signal when the completion signal is input from the convergence control unit.Type: GrantFiled: April 29, 2002Date of Patent: July 29, 2003Assignee: Samsung Electronics Co., Ltd.Inventor: Suk-sun Lee
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Publication number: 20030076450Abstract: A projection television and a convergence control method thereof are provided.Type: ApplicationFiled: August 29, 2002Publication date: April 24, 2003Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Suk-sun Lee, Il-hyun Ryu
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Publication number: 20030057892Abstract: A convergence control method and apparatus for a projection television are provided. The convergence control apparatus includes an image signal decoder, a convergence control unit, and a main microcomputer. The image signal decoder processes an input image signal and generates a data signal and horizontal and vertical synchronization signals, and a start signal indicating the start of either the horizontal and vertical synchronization signals. The convergence control unit performs convergence adjustment according to a convergence control command it receives, and generates a completion signal when convergence adjustment is complete. The main microcomputer inputs the convergence control command to the convergence control unit when the start signal is input from the image signal decoder, and performs a control operation to display the image signal when the completion signal is input from the convergence control unit.Type: ApplicationFiled: April 29, 2002Publication date: March 27, 2003Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Suk-Sun Lee