Patents by Inventor Hoon Yim
Hoon Yim 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: 8878181Abstract: An oxide thin film transistor (TFT) and a fabrication method thereof are provided.Type: GrantFiled: November 12, 2013Date of Patent: November 4, 2014Assignee: LG Display Co., Ltd.Inventors: Hoon Yim, Dae-Hwan Kim
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Patent number: 8803144Abstract: The present disclosure relates to a thin film transistor substrate for flat panel display device including oxide semiconductor. The present disclosure suggests a thin film transistor substrate for flat panel display device comprising: a transparent substrate; a thin film transistor layer having an oxide semiconductor material disposed on the transparent substrate; a passivation layer disposed on the whole surface of the thin film transistor layer; a pixel electrode formed on the passivation layer and contact the thin film transistor layer through a contact hole formed at the passivation layer; and a first ultra violet light absorbing layer disposed on the whole surface of the pixel electrode. Absorbing all of ultra violet light and passing all of the visible light, the photo-thermal characteristic is enhanced and the transparency property is not degraded.Type: GrantFiled: December 21, 2011Date of Patent: August 12, 2014Assignee: LG Display Co., LtdInventors: Hoon Yim, Daehwan Kim, Byungkook Choi, Sul Lee
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Patent number: 8735883Abstract: A method for fabricating an oxide thin film transistor includes sequentially forming a gate insulating film, an oxide semiconductor layer, and a first insulating layer; selectively patterning the oxide semiconductor layer and the first insulating layer to form an active layer and an insulating layer pattern on the gate electrode; forming a second insulating layer on the substrate having the active layer and the insulating layer pattern formed thereon; and selectively patterning the insulating layer pattern and the second insulating layer to form first and second etch stoppers on the active layer. The oxide semiconductor layer may be a ternary system or quaternary system oxide semiconductor comprising a combination of AxByCzO (A, B, C=Zn, Cd, Ga, In, Sn, Hf, Zr; x, y, z?0).Type: GrantFiled: December 13, 2011Date of Patent: May 27, 2014Assignee: LG Display Co., Ltd.Inventors: Dae-Hwan Kim, Byung-Kook Choi, Sul Lee, Hoon Yim
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Publication number: 20140070210Abstract: An oxide thin film transistor (TFT) and a fabrication method thereof are provided.Type: ApplicationFiled: November 12, 2013Publication date: March 13, 2014Applicant: LG DISPLAY CO., LTD.Inventors: Hoon Yim, Dae-Hwan Kim
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Patent number: 8604470Abstract: An oxide thin film transistor (TFT) and a fabrication method thereof are provided.Type: GrantFiled: May 12, 2011Date of Patent: December 10, 2013Assignee: LG Display Co., LtdInventors: Hoon Yim, Dae-Hwan Kim
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Publication number: 20120168746Abstract: The present disclosure relates to a thin film transistor substrate for flat panel display device including oxide semiconductor. The present disclosure suggests a thin film transistor substrate for flat panel display device comprising: a transparent substrate; a thin film transistor layer having an oxide semiconductor material disposed on the transparent substrate; a passivation layer disposed on the whole surface of the thin film transistor layer; a pixel electrode formed on the passivation layer and contact the thin film transistor layer through a contact hole formed at the passivation layer; and a first ultra violet light absorbing layer disposed on the whole surface of the pixel electrode. Absorbing all of ultra violet light and passing all of the visible light, the photo-thermal characteristic is enhanced and the transparency property is not degraded.Type: ApplicationFiled: December 21, 2011Publication date: July 5, 2012Inventors: Hoon Yim, Daehwan Kim, Byungkook Choi, Sul Lee
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Publication number: 20120146017Abstract: A method for fabricating an oxide thin film transistor includes sequentially forming a gate insulating film, an oxide semiconductor layer, and a first insulating layer; selectively patterning the oxide semiconductor layer and the first insulating layer to form an active layer and an insulating layer pattern on the gate electrode; forming a second insulating layer on the substrate having the active layer and the insulating layer pattern formed thereon; and selectively patterning the insulating layer pattern and the second insulating layer to form first and second etch stoppers on the active layer. The oxide semiconductor layer may be a ternary system or quaternary system oxide semiconductor comprising a combination of AxByCzO (A, B, C?Zn, Cd, Ga, In, Sn, Hf, Zr; x, y, z?0).Type: ApplicationFiled: December 13, 2011Publication date: June 14, 2012Inventors: Dae-Hwan KIM, Byung-Kook Choi, Sul Lee, Hoon Yim
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Publication number: 20110278565Abstract: An oxide thin film transistor (TFT) and a fabrication method thereof are provided.Type: ApplicationFiled: May 12, 2011Publication date: November 17, 2011Inventors: Hoon Yim, Dae-Hwan Kim
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Patent number: 7993778Abstract: A lithium ion secondary battery having a safety vent responsive to temperature and pressure. The lithium ion secondary battery includes an electrode assembly having a positive electrode plate, a separator, and a negative electrode plate which are simultaneously wound and laminated, and positive and negative electrode leads extending outward from the positive and negative electrode plates, respectively. A can containing the electrode assembly and having an opening; and a cap plate coupled to the opening of the can, wherein an electrode terminal extends through and is coupled to the center of the cap plate with a gasket interposed therein, the negative electrode lead being connected to the electrode terminal, the positive electrode lead being connected to the cap plate, a coupling hole being formed on the cap plate, and a safety vent adapted to soften at a predetermined temperature is coupled to the coupling hole.Type: GrantFiled: June 20, 2005Date of Patent: August 9, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Hoon Yim, Soo-Yeon Maeng
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Patent number: 7931980Abstract: An electrode assembly is adapted to prevent the separator from contracting due to heat that is generated near the electrode tab during overcharging, over-discharging, or in the case of an internal short circuit. The electrode assembly also prevents an additional short circuit between the electrode plates. A rechargeable battery that comprises the electrode assembly is also provided. The present invention prevents the electrode tab from being short-circuited due to increased heat generation during overcharging or in the case of a short circuit, thus improving the safety of the rechargeable battery.Type: GrantFiled: June 24, 2005Date of Patent: April 26, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Yoon Tai Kwak, Eui Sun Hong, Soo Yeon Maeng, Hoon Yim
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Patent number: 7754378Abstract: In a secondary battery having an electrolyte injection hole having improved sealing structure to improve the safety of the can-type secondary battery and to prevent the electrolyte from leaking, the electrolyte injection hole is sealed by welding the sealing plate on top of the cap plate so that the electrolyte is prevented from flowing into the welded portion. Since no fine gap is created in the electrolyte injection hole, the electrolyte is prevented from flowing into the welded portion due to a capillary phenomenon and no pin hole caused by the electrolyte is formed in the welded portion.Type: GrantFiled: June 21, 2005Date of Patent: July 13, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Hoon Yim, Soo-Yeon Maeng, Kyu-Woong Cho
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Patent number: 7754372Abstract: A lithium secondary battery having a cap assembly including a cap plate, an insulation plate and a terminal plate. The insulation plate and the terminal plate each have a predetermined vent hole corresponding to a safety vent formed on the cap plate so that if the secondary battery is dropped, an electrolyte passes through the vent-holes and undergoes a pressure reduction, thereby preventing fracture of a safety vent by the electrolyte while allowing gas to be exhausted upon battery overcharge, full discharge or by overheating.Type: GrantFiled: March 16, 2006Date of Patent: July 13, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Teak Hyen Kwon, Chang Kyu Shin, Hoon Yim
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Publication number: 20060216578Abstract: A lithium secondary battery having a cap assembly including a cap plate, an insulation plate and a terminal plate. The insulation plate and the terminal plate each have a predetermined vent hole corresponding to a safety vent formed on the cap plate so that if the secondary battery is dropped, an electrolyte passes through the vent-holes and undergoes a pressure reduction, thereby preventing fracture of a safety vent by the electrolyte while allowing gas to be exhausted upon battery overcharge, full discharge or by overheating.Type: ApplicationFiled: March 16, 2006Publication date: September 28, 2006Inventors: Teak Kwon, Chang Shin, Hoon Yim
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Publication number: 20060099501Abstract: A secondary battery having an electrode assembly with improved battery capacity. The secondary battery has an electrode assembly including two electrodes and a separator, a case made from an insulative material and having an opening at an upper portion thereof for receiving the electrode assembly therein, and a cap assembly including a cap plate made from an insulative material for sealing the opening to prevent the electrode assembly from being separated from the case.Type: ApplicationFiled: October 27, 2005Publication date: May 11, 2006Inventors: Ka Kim, Eui Hong, Kyoung Kim, Byung Jung, Young Kwon, Jin Lee, Hoon Yim, Kum Kim
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Publication number: 20060051662Abstract: An electrode assembly is adapted to prevent the separator from contracting due to heat that is generated near the electrode tab during overcharging, over-discharging, or in the case of an internal short circuit. The electrode assembly also prevents an additional short circuit between the electrode plates. A rechargeable battery that comprises the electrode assembly is also provided. The present invention prevents the electrode tab from being short-circuited due to increased heat generation during overcharging or in the case of a short circuit, thus improving the safety of the rechargeable battery.Type: ApplicationFiled: June 24, 2005Publication date: March 9, 2006Inventors: Yoon Kwak, Eui Hong, Soo Maeng, Hoon Yim
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Publication number: 20060024574Abstract: A lithium ion secondary battery having a safety vent responsive to temperature and pressure. The lithium ion secondary battery includes an electrode assembly having a positive electrode plate, a separator, and a negative electrode plate which are simultaneously wound and laminated, and positive and negative electrode leads extending outward from the positive and negative electrode plates, respectively. A can containing the electrode assembly and having an opening; and a cap plate coupled to the opening of the can, wherein an electrode terminal extends through and is coupled to the center of the cap plate with a gasket interposed therein, the negative electrode lead being connected to the electrode terminal, the positive electrode lead being connected to the cap plate, a coupling hole being formed on the cap plate, and a safety vent adapted to soften at a predetermined temperature is coupled to the coupling hole.Type: ApplicationFiled: June 20, 2005Publication date: February 2, 2006Inventors: Hoon Yim, Soo-Yeon Maeng
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Publication number: 20060024573Abstract: In a secondary battery having an electrolyte injection hole having improved sealing structure to improve the safety of the can-type secondary battery and to prevent the electrolyte from leaking, the electrolyte injection hole is sealed by welding the sealing plate on top of the cap plate so that the electrolyte is prevented from flowing into the welded portion. Since no fine gap is created in the electrolyte injection hole, the electrolyte is prevented from flowing into the welded portion due to a capillary phenomenon and no pin hole caused by the electrolyte is formed in the welded portion.Type: ApplicationFiled: June 21, 2005Publication date: February 2, 2006Inventors: Hoon Yim, Soo-Yeon Maeng, Kyu-Woong Cho