Patents by Inventor Dong il Yoo
Dong il Yoo 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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Anode active material for lithium secondary battery and lithium secondary battery including the same
Patent number: 11967705Abstract: An anode active material for a lithium secondary battery includes a carbon-based particle including pores therein, a silicon-containing coating layer formed at an inside the pores of the carbon-based particle or on a surface of the carbon-based particle, and a carbon coating layer formed on the silicon-containing coating layer. A full width at half maximum (FWHM) of an O1s peak of a surface measured by an X-ray photoelectron spectroscopy (XPS) is 2.0 or more. A lithium secondary battery including the anode active material having improved initial discharge capacity and capacity efficiency is provided.Type: GrantFiled: July 1, 2022Date of Patent: April 23, 2024Assignee: SK ON CO., LTD.Inventors: Gwi Ok Park, Seok Keun Yoo, Dong Il Jang, Ju Ho Chung -
Publication number: 20240121955Abstract: A manufacturing method of a semiconductor device may include: forming a stack comprising first material layers and second material layers that are alternately stacked; forming an opening in the stack; forming a first seed layer in the opening; forming a first buffer layer by surface-treating the first seed layer; and forming a blocking layer by oxidizing the first seed layer through the first buffer layer.Type: ApplicationFiled: March 21, 2023Publication date: April 11, 2024Applicant: SK hynix Inc.Inventors: Jong Gi KIM, Young Jin NOH, Jae O PARK, Jin Ho BIN, Dong Chul YOO, Yoo Il JEON
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Patent number: 11215892Abstract: The display device according to an exemplary embodiment of the present inventive concept includes: a signal line extending in a direction perpendicular to a first direction; a transistor electrically connected to the signal line; and a pixel electrode electrically connected to the transistor and including a branch electrode, wherein the branch electrode incudes a first portion and a second portion extending from the first portion and extending in a direction different from an extending direction of the first portion, an acute angle formed between an extending direction of the second portion and the first direction is smaller than an acute angle formed between the extending direction of the first portion and the first direction, and the signal line overlaps the second portion in a plan view.Type: GrantFiled: May 28, 2020Date of Patent: January 4, 2022Inventors: Kyeong Hwan Shin, Kyu Su Ahn, Dong Il Yoo
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Publication number: 20210132456Abstract: The present disclosure relates to a display device. The display device according to an exemplary embodiment of the present inventive concept includes: a signal line extending in a direction perpendicular to a first direction; a transistor electrically connected to the signal line; and a pixel electrode electrically connected to the transistor and including a branch electrode, wherein the branch electrode incudes a first portion and a second portion extending from the first portion and extending in a direction different from an extending direction of the first portion, an acute angle formed between an extending direction of the second portion and the first direction is smaller than an acute angle formed between the extending direction of the first portion and the first direction, and the signal line overlaps the second portion in a plan view.Type: ApplicationFiled: May 28, 2020Publication date: May 6, 2021Inventors: Kyeong Hwan SHIN, Kyu Su AHN, Dong Il YOO
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Patent number: 10222664Abstract: A liquid crystal display device includes a substrate, a first coupling electrode disposed on the substrate, a first insulating layer disposed on the first coupling electrode, a second coupling electrode disposed on the first insulating layer and capacitively coupled to the first coupling electrode, a second insulating layer disposed on the second coupling electrode, and a pixel electrode including first and second sub-pixel electrodes, which are disposed on the second insulating layer and are electrically insulated from each other, where the first sub-pixel electrode is electrically connected to the first coupling electrode via a first contact hole, which is defined in the first and second insulating layers, and the second sub-pixel electrode is electrically connected to the second coupling electrode via a second contact hole which is defined in the second insulating layer.Type: GrantFiled: November 8, 2016Date of Patent: March 5, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Il Joo Kim, Cheol Gon Lee, Gun Woo Yang, Hyun Young Choi, Tae Ho Kang, Chol Ho Kim, Hae Ryeong Park, Dong Il Yoo, Yong Woo Lee, Mee Hye Jung, Joong Gun Chong
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Patent number: 9846339Abstract: A liquid crystal display includes a substrate on which a pixel region is defined, a first sub-pixel electrode in the pixel region on the substrate, an insulating layer on the first sub-pixel electrode, a second sub-pixel electrode in the pixel region on the insulating layer, a floating electrode in the pixel region on the insulating layer and disconnected from the second sub-pixel electrode, a liquid crystal layer on the second sub-pixel electrode and the floating electrode, and a common electrode disposed on the liquid crystal layer. The floating electrode includes first to fourth floating electrodes in first to fourth quadrants of the pixel region, respectively. The first to fourth floating electrodes are separated from one another, and the first sub-pixel electrode partially overlaps the second sub-pixel electrode and the first to fourth floating electrodes.Type: GrantFiled: June 15, 2016Date of Patent: December 19, 2017Assignee: SAMSUNG DISPLAY CO. LTD.Inventors: Tae Ho Kang, Hae Ryeong Park, Yong Jo Kim, Dong Il Yoo, Tae Kyung Yim, Nak Cho Choi
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Publication number: 20170322468Abstract: A liquid crystal display device includes a substrate, a first coupling electrode disposed on the substrate, a first insulating layer disposed on the first coupling electrode, a second coupling electrode disposed on the first insulating layer and capacitively coupled to the first coupling electrode, a second insulating layer disposed on the second coupling electrode, and a pixel electrode including first and second sub-pixel electrodes, which are disposed on the second insulating layer and are electrically insulated from each other, where the first sub-pixel electrode is electrically connected to the first coupling electrode via a first contact hole, which is defined in the first and second insulating layers, and the second sub-pixel electrode is electrically connected to the second coupling electrode via a second contact hole which is defined in the second insulating layer.Type: ApplicationFiled: November 8, 2016Publication date: November 9, 2017Inventors: Il Joo KIM, Cheol Gon LEE, Gun Woo YANG, Hyun Young CHOI, Tae Ho KANG, Chol Ho KIM, Hae Ryeong PARK, Dong Il YOO, Yong Woo LEE, Mee Hye JUNG, Joong Gun CHONG
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Publication number: 20170123280Abstract: A liquid crystal display includes a substrate on which a pixel region is defined, a first sub-pixel electrode in the pixel region on the substrate, an insulating layer on the first sub-pixel electrode, a second sub-pixel electrode in the pixel region on the insulating layer, a floating electrode in the pixel region on the insulating layer and disconnected from the second sub-pixel electrode, a liquid crystal layer on the second sub-pixel electrode and the floating electrode, and a common electrode disposed on the liquid crystal layer. The floating electrode includes first to fourth floating electrodes in first to fourth quadrants of the pixel region, respectively. The first to fourth floating electrodes are separated from one another, and the first sub-pixel electrode partially overlaps the second sub-pixel electrode and the first to fourth floating electrodes.Type: ApplicationFiled: June 15, 2016Publication date: May 4, 2017Inventors: Tae Ho KANG, Hae Ryeong PARK, Yong Jo KIM, Dong Il YOO, Tae Kyung YIM, Nak Cho CHOI
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Patent number: 9519194Abstract: A liquid crystal display, including: a first substrate; a gate line and a data line disposed on the first substrate; a pixel electrode disposed on the first substrate and including a stem portion and a plurality of branch electrodes that extends obliquely from the stem portion; a second substrate facing the first substrate; and a common electrode disposed on the second substrate, and the pixel electrode further includes a plurality of oblique portions disposed between the plurality of branch electrodes and the stem portion, and the plurality of oblique portions extends in a direction different from a direction in which the plurality of branch electrodes extends.Type: GrantFiled: July 1, 2014Date of Patent: December 13, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hee Hwan Lee, Hae Ryeong Park, Dong Il Yoo, Mun-Soo Park, Kyu Su Ahn, Yong Woo Lee
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Publication number: 20150009442Abstract: A liquid crystal display, including: a first substrate; a gate line and a data line disposed on the first substrate; a pixel electrode disposed on the first substrate and including a stem portion and a plurality of branch electrodes that extends obliquely from the stem portion; a second substrate facing the first substrate; and a common electrode disposed on the second substrate, and the pixel electrode further includes a plurality of oblique portions disposed between the plurality of branch electrodes and the stem portion, and the plurality of oblique portions extends in a direction different from a direction in which the plurality of branch electrodes extends.Type: ApplicationFiled: July 1, 2014Publication date: January 8, 2015Inventors: Hee Hwan Lee, Hae Ryeong Park, Dong il Yoo, Mun-Soo Park, Kyu Su Ahn, Yong Woo Lee