Patents by Inventor Dong Yung Kim
Dong Yung Kim 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: 9876221Abstract: Embodiments of the present invention are directed to negative active materials for lithium rechargeable batteries and to lithium rechargeable batteries including the negative active materials. The negative active material includes a crystalline carbon material having pores, and amorphous conductive nanoparticles in the pores, on the surface of the crystalline carbon, or both in the pores and on the surface of the crystalline carbon. The conductive nanoparticles have a FWHM of about 0.35 degrees (°) or greater at the crystal plane that produces the highest peak as measured by X-ray diffraction.Type: GrantFiled: May 3, 2011Date of Patent: January 23, 2018Assignee: Samsung SDI Co., Ltd.Inventors: Bong-Chull Kim, Cheol-Hee Hwang, Dong-Yung Kim, Se-Ho Park, Hyun-Jun Choi
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Patent number: 9857644Abstract: A transflective liquid crystal display includes: a first substrate divided into a pixel part and first and second pad parts; a gate electrode and a gate line formed at the pixel part of the first substrate; a first insulation film formed on the first substrate; an active pattern formed as an island at an upper portion of the gate electrode and having a width smaller than the gate electrode; an ohmic-contact layer and a barrier metal layer formed on the first substrate and on source and drain regions of the active pattern; source and drain electrodes formed at the pixel part of the first substrate and electrically connected with the source and drain regions of the active pattern via the ohmic-contact layer and the barrier metal layer; a data line formed at the pixel part of the first substrate and crossing the gate line to define a pixel region including a reflective portion and a transmissive portion; a pixel electrode formed at the transmissive portion of the pixel region and electrically connected with theType: GrantFiled: December 31, 2013Date of Patent: January 2, 2018Assignee: LG Display Co., Ltd.Inventors: Dong-Yung Kim, Byoung-Ho Lim
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Patent number: 9853291Abstract: A negative electrode for a rechargeable lithium battery, including a negative active material layer including a polymer binder including a repeating unit represented by the following Chemical Formula 1 or the following Chemical Formula 2 and a Si-based negative active material; and a current collector supporting the negative active material layer, is provided: wherein in Chemical Formulae 1 and 2, R1 and R2 are the same or different and hydrogen, OH or OOH.Type: GrantFiled: December 15, 2011Date of Patent: December 26, 2017Assignee: Samsung SDI Co., Ltd.Inventors: Se-Ho Park, Bong-Chull Kim, Dong-Yung Kim, Cheol-Hee Hwang, Hyun-Jun Choi
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Patent number: 8906555Abstract: A negative active material for a rechargeable lithium battery includes: a crystalline carbon core including pores; an amorphous carbon shell positioned on the core surface; metal nanoparticles dispersed inside the pores; and amorphous carbon inside the pores, wherein a first particle diameter difference (D50?D10) of the nanoparticles is from about 70 to about 150 nm and the second particle diameter difference (D90?D50) of the nanoparticles is from about 440 to about 520 nm.Type: GrantFiled: November 6, 2012Date of Patent: December 9, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Cheol-Hee Hwang, Bong-Chull Kim, Se-Ho Park, Dong-Yung Kim
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Patent number: 8785049Abstract: A negative active material for a rechargeable lithium battery includes a core including crystalline carbon, a metal nano particle and a MOx nano particle (where x is from 0.5 to 1.5, and M is Si, Sn, In, Al, or a combination thereof) disposed on the core surface, and a coating layer including an amorphous carbon surrounding the core surface, the metal nano particle and the MOx nano particle. A lithium rechargeable battery includes the negative active material.Type: GrantFiled: March 21, 2011Date of Patent: July 22, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Bong-Chull Kim, Cheol-Hee Hwang, Dong-Yung Kim, Se-Ho Park, Hyun-Jun Choi, In-Ho Jung, Su-Ho Song
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Publication number: 20140141684Abstract: A transflective liquid crystal display includes: a first substrate divided into a pixel part and first and second pad parts; a gate electrode and a gate line formed at the pixel part of the first substrate; a first insulation film formed on the first substrate; an active pattern formed as an island at an upper portion of the gate electrode and having a width smaller than the gate electrode; an ohmic-contact layer and a barrier metal layer formed on the first substrate and on source and drain regions of the active pattern; source and drain electrodes formed at the pixel part of the first substrate and electrically connected with the source and drain regions of the active pattern via the ohmic-contact layer and the barrier metal layer; a data line formed at the pixel part of the first substrate and crossing the gate line to define a pixel region including a reflective portion and a transmissive portion; a pixel electrode formed at the transmissive portion of the pixel region and electrically connected with theType: ApplicationFiled: December 31, 2013Publication date: May 22, 2014Applicant: LG Display Co., Ltd.Inventors: Dong-Yung KIM, Byoung-Ho LIM
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Patent number: 8634036Abstract: A trans-reflective LCD and a manufacturing method thereof are provided to simplify a manufacturing process and improve yield by reducing the number of masks and implement high definition by preventing wavy noise. A first substrate divided into a pixel unit and first and second pad units is provided. Through a first mask process, a gate electrode and a gate line are formed in the pixel unit of the first substrate. Through a second mask process, an active pattern of an island type is formed on the gate electrode in a state when a first insulating layer is interposed. On the active pattern, an n+ amorphous silicon thin film pattern and a conductive layer pattern are formed. Through a third mask process, a source electrode and a drain electrode are formed in the pixel unit of the first substrate. A data line crosses the gate line to define a pixel area comprising a reflection unit and a transmission unit.Type: GrantFiled: December 26, 2007Date of Patent: January 21, 2014Assignee: LG Display Co., Ltd.Inventors: Dong-Yung Kim, Byoung-Ho Lim
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Patent number: 8597833Abstract: A rechargeable lithium battery including: a negative electrode having a composite negative active material of a metal and a carbonaceous material; a positive electrode having a mixed positive active material of about 90 to 99 wt % of a first positive active material selected from cobalt, manganese, phosphate acid-based, or combinations thereof and about 1 to about 10 wt % of a nickel-based second positive active material; and a non-aqueous electrolyte.Type: GrantFiled: December 30, 2009Date of Patent: December 3, 2013Assignee: Samsung SDI Co., Ltd.Inventors: Cheol-Hee Hwang, Bong-Chull Kim, Dong-Yung Kim, Se-Ho Park
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Patent number: 8357937Abstract: A liquid crystal display (LCD) includes: a first substrate divided into a pixel part and first and second pad parts; a gate electrode and a gate line formed at the pixel part of the first substrate; an active pattern formed as an island on the gate electrode and having a width smaller than the gate electrode; an insulation film formed on the first substrate and having first and second contact holes exposing source and drain regions of the active pattern, respectively; source and drain electrodes formed at the pixel part of the first substrate and electrically connected with the source and drain regions of the active pattern via the first and second contact holes; a data line formed at the pixel part of the first substrate and crossing the gate line to define a pixel region; an etch stopper positioned between the source and drain electrodes and formed as an insulation film; a pixel electrode electrically connected with the drain electrode; and a second substrate attached with the first substrate in a facing maType: GrantFiled: December 18, 2007Date of Patent: January 22, 2013Assignee: LG Display Co., Ltd.Inventors: Dong-Yung Kim, Chang-Bin Lee
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Patent number: 8309254Abstract: A negative active material for a rechargeable lithium battery includes: a crystalline carbon core including pores; an amorphous carbon shell positioned on the core surface; metal nanoparticles dispersed inside the pores; and amorphous carbon inside the pores, wherein a first particle diameter difference (D50?D10) of the nanoparticles is from about 70 to about 150 nm and the second particle diameter difference (D90?D50) of the nanoparticles is from about 440 to about 520 nm.Type: GrantFiled: May 6, 2010Date of Patent: November 13, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Cheol-Hee Hwang, Bong-Chull Kim, Se-Ho Park, Dong-Yung Kim
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Publication number: 20120244428Abstract: A negative electrode for a rechargeable lithium battery, including a negative active material layer including a polymer binder including a repeating unit represented by the following Chemical Formula 1 or the following Chemical Formula 2 and a Si-based negative active material; and a current collector supporting the negative active material layer, is provided: wherein in Chemical Formulae 1 and 2, R1 and R2 are the same or different and hydrogen, OH or OOH.Type: ApplicationFiled: December 15, 2011Publication date: September 27, 2012Applicant: SAMSUNG, SDI CO., LTD.Inventors: Se-Ho Park, Bong-Chull Kim, Dong-Yung Kim, Cheol-Hee Hwang, Hyun-Jun Choi
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Publication number: 20120115033Abstract: A negative active material for a rechargeable lithium battery includes a core including crystalline carbon, a metal nano particle and a MOx nano particle (where x is from 0.5 to 1.5, and M is Si, Sn, In, Al, or a combination thereof) disposed on the core surface, and a coating layer including an amorphous carbon surrounding the core surface, the metal nano particle and the MOx nano particle.Type: ApplicationFiled: March 21, 2011Publication date: May 10, 2012Inventors: Bong-Chull Kim, Cheol-Hee Hwang, Dong-Yung Kim, Se-Ho Park, Hyun-Jun Choi, In-Ho Jung, Su-Ho Song
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Publication number: 20110281180Abstract: Embodiments of the present invention are directed to negative active materials for lithium rechargeable batteries and to lithium rechargeable batteries including the negative active materials. The negative active material includes a crystalline carbon material having pores, and amorphous conductive nanoparticles in the pores, on the surface of the crystalline carbon, or both in the pores and on the surface of the crystalline carbon. The conductive nanoparticles have a FWHM of about 0.35 degrees (°) or greater at the crystal plane that produces the highest peak as measured by X-ray diffraction.Type: ApplicationFiled: May 3, 2011Publication date: November 17, 2011Inventors: Bong-Chull Kim, Cheol-Hee Hwang, Dong-Yung Kim, Se-Ho Park, Hyun-Jun Choi
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Patent number: 8054424Abstract: A transflective liquid crystal display device includes first and second substrates facing each other, a gate line and a data line on the first substrate, the gate and data lines intersecting each other and defining a pixel region having a transmissive region and a reflective region, a thin film transistor at an intersection between the gate line and the data line, a pixel electrode in the pixel region connected to the thin film transistor, an organic insulating layer on the second substrate, the organic insulating layer including a through-hole in the transmissive region, a reflective electrode on the organic insulating layer in the reflective region, a black matrix on the second substrate, a color filter layer on the second substrate in the pixel region, and a liquid crystal layer between the first and second substrates.Type: GrantFiled: April 18, 2011Date of Patent: November 8, 2011Assignee: LG Display Co., Ltd.Inventor: Dong Yung Kim
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Publication number: 20110194056Abstract: A transflective liquid crystal display device includes first and second substrates facing each other, a gate line and a data line on the first substrate, the gate and data lines intersecting each other and defining a pixel region having a transmissive region and a reflective region, a thin film transistor at an intersection between the gate line and the data line, a pixel electrode in the pixel region connected to the thin film transistor, an organic insulating layer on the second substrate, the organic insulating layer including a through-hole in the transmissive region, a reflective electrode on the organic insulating layer in the reflective region, a black matrix on the second substrate, a color filter layer on the second substrate in the pixel region, and a liquid crystal layer between the first and second substrates.Type: ApplicationFiled: April 18, 2011Publication date: August 11, 2011Inventor: Dong Yung Kim
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Patent number: 7929084Abstract: A transflective liquid crystal display device includes first and second substrates facing each other, a gate line and a data line on the first substrate, the gate and data lines intersecting each other and defining a pixel region having a transmissive region and a reflective region, a thin film transistor at an intersection between the gate line and the data line, a pixel electrode in the pixel region connected to the thin film transistor, an organic insulating layer on the second substrate, the organic insulating layer including a through-hole in the transmissive region, a reflective electrode on the organic insulating layer in the reflective region, a black matrix on the second substrate, a color filter layer on the second substrate in the pixel region, and a liquid crystal layer between the first and second substrates.Type: GrantFiled: October 20, 2009Date of Patent: April 19, 2011Assignee: LG Display Co., Ltd.Inventor: Dong Yung Kim
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Publication number: 20100285359Abstract: A negative active material for a rechargeable lithium battery includes: a crystalline carbon core including pores; an amorphous carbon shell positioned on the core surface; metal nanoparticles dispersed inside the pores; and amorphous carbon inside the pores, wherein a first particle diameter difference (D50?D10) of the nanoparticles is from about 70 to about 150 nm and the second particle diameter difference (D90?D50) of the nanoparticles is from about 440 to about 520 nm.Type: ApplicationFiled: May 6, 2010Publication date: November 11, 2010Applicant: Samsung SDI Co., Ltd.Inventors: Cheol-Hee Hwang, Bong-Chull Kim, Se-Ho Park, Dong-Yung Kim
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Publication number: 20100279172Abstract: A rechargeable lithium battery including: a negative electrode having a composite negative active material of a metal and a carbonaceous material; a positive electrode having a mixed positive active material of about 90 to 99 wt % of a first positive active material selected from cobalt, manganese, phosphate acid-based, or combinations thereof and about 1 to about 10 wt % of a nickel-based second positive active material; and a non-aqueous electrolyte.Type: ApplicationFiled: December 30, 2009Publication date: November 4, 2010Applicant: Samsung SDI Co., Ltd.Inventors: Cheol-Hee HWANG, Bong-Chull KIM, Dong-Yung KIM, Se-Ho PARK
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Publication number: 20100196755Abstract: An electrode assembly and a secondary battery having the same, which include a positive electrode having a positive electrode active material layer deposited on a positive electrode collector, a negative electrode having a negative electrode active material layer deposited on a negative electrode collector, and a separator separating the positive electrode from the negative electrode. The negative electrode active material layer includes a negative electrode active material of a metal-graphite complex, and the thickness of the negative electrode collector is in the range from 16.3 to 24.2% of that of the negative electrode active material layer. The thickness of the secondary battery can be reduced while maintaining battery capacity by controlling the ratio of the thickness of the negative active material layer to the negative electrode collector and controlling the tensile stress of the negative electrode collector.Type: ApplicationFiled: February 4, 2010Publication date: August 5, 2010Applicant: Samsung SDI Co., Ltd.Inventors: Se-Ho Park, Bong-Chull Kim, Cheol-Hee Hwang, Dong-Yung Kim
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Publication number: 20100039593Abstract: A transflective liquid crystal display device includes first and second substrates facing each other, a gate line and a data line on the first substrate, the gate and data lines intersecting each other and defining a pixel region having a transmissive region and a reflective region, a thin film transistor at an intersection between the gate line and the data line, a pixel electrode in the pixel region connected to the thin film transistor, an organic insulating layer on the second substrate, the organic insulating layer including a through-hole in the transmissive region, a reflective electrode on the organic insulating layer in the reflective region, a black matrix on the second substrate, a color filter layer on the second substrate in the pixel region, and a liquid crystal layer between the first and second substrates.Type: ApplicationFiled: October 20, 2009Publication date: February 18, 2010Applicant: LG DISPLAY CO., LTD.Inventor: Dong Yung KIM