Patents by Inventor Dai Hyun Kim
Dai Hyun 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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Publication number: 20160221377Abstract: A thermal transfer paper for printing or digital printing includes a release paper and a thermal transfer layer, wherein the thermal transfer layer is a semitransparent or opaque coating layer in which ink used by a printer or a digital printer is absorbed therein such that a color patterned layer is formed. Accordingly, the thermal transfer paper can be used regardless of the printing method and the kind of ink according to the printing method and allows thermal transferring to be carried out at a temperature of 90-180° C. which is lower than a temperature of 200-280° C. of conventional thermal transfer methods, thereby preventing the deformation of a subject and the emission of toxic gas from the thermal transfer paper so as to be safe for workers.Type: ApplicationFiled: April 11, 2016Publication date: August 4, 2016Inventor: Dai Hyun Kim
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Patent number: 9315699Abstract: Provided is an adhesive composition comprising: a thermosetting epoxy resin formed with an epoxy copolymer containing a hydroxyl group; and a UV curable epoxy resin having an epoxy equivalence of 100 g/eq to 500 g/eq.Type: GrantFiled: September 4, 2013Date of Patent: April 19, 2016Assignee: LG HAUSYS, LTD.Inventors: Sang Hwan Kim, Yong Hoon Lee, Dai Hyun Kim, Won Gu Choi, Jang Soon Kim
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Patent number: 9312490Abstract: Disclosed are a photothermal conversion film having good photothermal conversion effects and also good visible light penetrability, and a transfer film for an OLED using same. The photothermal conversion film according to the present invention comprises a base film and a photothermal conversion layer formed on the base film, wherein the photothermal conversion layer includes a tungsten oxide-based material and has visible light penetrability of 20% or greater.Type: GrantFiled: June 25, 2013Date of Patent: April 12, 2016Assignee: LG HAUSYS, LTD.Inventors: Tae-Yi Choi, Jang-Soon Kim, Sang-Hwan Kim, Myung-Hyun Jo, Dai-Hyun Kim
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Publication number: 20150203726Abstract: Provided is an adhesive composition comprising: a thermosetting epoxy resin formed with an epoxy copolymer containing a hydroxyl group; and a UV curable epoxy resin having an epoxy equivalence of 100 g/eq to 500 g/eq.Type: ApplicationFiled: September 4, 2013Publication date: July 23, 2015Inventors: Sang Hwan Kim, Yong Hoon Lee, Dai Hyun Kim, Won Gu Choi, Jang Soon Kim
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Publication number: 20150179939Abstract: Disclosed are a photothermal conversion film having good photothermal conversion effects and also good visible light penetrability, and a transfer film for an OLED using same. The photothermal conversion film according to the present invention comprises a base film and a photothermal conversion layer formed on the base film, wherein the photothermal conversion layer includes a tungsten oxide-based material and has visible light penetrability of 20% or greater.Type: ApplicationFiled: June 25, 2013Publication date: June 25, 2015Inventors: Tae-Yi Choi, Jang-Soon Kim, Sang-Hwan Kim, Myung-Hyun Jo, Dai-Hyun Kim
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Patent number: 7613018Abstract: An apparatus and method for supplying a direct current power source which is capable of compensating a power factor of an input power source by detecting an input current amount according to load changes, the apparatus comprising an input current detecting unit for detecting an input current amount to determine a load size, a power factor control unit for outputting a power factor control signal and an input current amount control signal according to the determined load size, an input current refluxing unit for refluxing the input current by cutting off an input power source based upon the input current amount control signal, an active filter for reducing a harmonic of the input current, rectifying an input alternating current (AC) voltage and boosting a smoothing voltage, a power factor compensating unit for supplying charged energy to the load based upon the power factor control signal, a smoothing unit for smoothing the rectified input AC voltage into a direct current (DC) voltage, and an inverter for convType: GrantFiled: September 18, 2006Date of Patent: November 3, 2009Assignee: LG Electronics Inc.Inventors: Sun-Kyoung Lim, Dai-Hyun Kim, Hag-Wone Kim
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Publication number: 20090228147Abstract: An apparatus and method for controlling an air conditioner capable of reducing a fabrication cost by using one high-speed microcomputer and one port-ex-tension microcomputer, enhancing a reliability thereof by reducing a data communication amount between the microcomputers, and implementing a simple circuit construction. The apparatus for controlling an air conditioner comprising: a converter for converting an alternating current voltage (ACV) into a direct current voltage (DCV), and boosting the DCV; a smoothening unit for smoothening the DCV from the converter; an inverter for converting the smoothened DCV into an ACV; and a motor, comprises: a supplementary microcomputer for controlling a valve for controlling a refrigerant flow inside a pipe of the air conditioner and a relay for controlling a current flow by receiving a control signal; and a main microcomputer for entirely controlling the air conditioner with the real-time controlling unit of the air conditioner and the supplementary microcomputer.Type: ApplicationFiled: October 24, 2006Publication date: September 10, 2009Inventors: Sun-Kyoung Lim, Dai-Hyun Kim, Hag-Wone Kim
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Patent number: 7532491Abstract: An apparatus and method for supplying a direct current power source capable of compensating a power factor of an input power source by increasing and decreasing energy required by load changes, the apparatus comprising: an input current detecting unit for detecting an input current amount to determine a load size, a switching control unit for outputting a switching control signal to compensate a power factor of an input power source based upon the determined load size, a filtering/rectifying unit for reducing a harmonic of the input current and rectifying an input AC voltage, a power factor compensating unit for supplying charged energy to the load based upon the switching control signal, a smoothing unit for smoothing the rectified input AC voltage into a DC voltage, and an inverter for converting the smoothed DC voltage into an AC voltage and outputting the converted AC voltage to drive the load, whereby the power factor compensation (PFC) standard can be satisfied although the load is increased, and a fabrType: GrantFiled: September 6, 2006Date of Patent: May 12, 2009Assignee: LG Electronics Inc.Inventors: Sun-Kyoung Lim, Dai-Hyun Kim, Hag-Wone Kim
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Patent number: 7417604Abstract: A method and an apparatus for driving a plasma display panel with improved image quality are provided. The method for driving a PDP includes: determining whether a frame period is varied on the basis of order of an inputted vertical synchronization signal; varying the frame period; and shifting and arranging the first and second frames in the varied frame period.Type: GrantFiled: April 16, 2004Date of Patent: August 26, 2008Assignee: LG Electronics Inc.Inventor: Dai Hyun Kim
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Publication number: 20080174524Abstract: The present invention relates to a driving method of a plasma display panel for improving a picture quality. The driving method of a plasma display panel in which an nth frame having a first brightness weighting value and a (n+1)th frame having a brightness weighting value different from the first brightness weighting value are alternatively arranged every vertical synchronous signal to display a certain image, wherein one frame period of the nth frame or the (n+1)th frame is variably set such that a brightness expression period can be identically set at the nth frame and the (n+1)th frame.Type: ApplicationFiled: September 13, 2007Publication date: July 24, 2008Inventors: Dai Hyun Kim, Jeong Pil Choi, Kyu Seon Lee
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Patent number: 7372435Abstract: The present invention relates to a driving method of a plasma display panel for improving a picture quality. The driving method of a plasma display panel in which an nth frame having a first brightness weighting value and a (n+1)th frame having a brightness weighting value different from the first brightness weighting value are alternatively arranged every vertical synchronous signal to display a certain image, wherein one frame period of the nth frame or the (n+1)th frame is variably set such that a brightness expression period can be identically set at the nth frame and the (n+1)th frame.Type: GrantFiled: March 11, 2004Date of Patent: May 13, 2008Assignee: LG Electronics Inc.Inventors: Dai Hyun Kim, Jeong Pil Choi, Kyu Seon Lee
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Publication number: 20070217236Abstract: An apparatus and method for supplying a direct current power source capable of compensating a power factor of an input power source by increasing and decreasing energy required by load changes, the apparatus comprising: an input current detecting unit for detecting an input current amount to determine a load size, a switching control unit for outputting a switching control signal to compensate a power factor of an input power source based upon the determined load size, a filtering/rectifying unit for reducing a harmonic of the input current and rectifying an input AC voltage, a power factor compensating unit for supplying charged energy to the load based upon the switching control signal, a smoothing unit for smoothing the rectified input AC voltage into a DC voltage, and an inverter for converting the smoothed DC voltage into an AC voltage and outputting the converted AC voltage to drive the load, whereby the power factor compensation (PFC) standard can be satisfied although the load is increased, and a fabrType: ApplicationFiled: September 6, 2006Publication date: September 20, 2007Applicant: LG Electronics Inc.Inventors: Sun-Kyoung LIM, Dai-Hyun KIM, Hag-Wone KIM
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Publication number: 20070217233Abstract: An apparatus and method for supplying a direct current power source which is capable of compensating a power factor of an input power source by detecting an input current amount according to load changes, the apparatus comprising an input current detecting unit for detecting an input current amount to determine a load size, a power factor control unit for outputting a power factor control signal and an input current amount control signal according to the determined load size, an input current refluxing unit for refluxing the input current by cutting off an input power source based upon the input current amount control signal, an active filter for reducing a harmonic of the input current, rectifying an input alternating current (AC) voltage and boosting a smoothing voltage, a power factor compensating unit for supplying charged energy to the load based upon the power factor control signal, a smoothing unit for smoothing the rectified input AC voltage into a direct current (DC) voltage, and an inverter for convType: ApplicationFiled: September 18, 2006Publication date: September 20, 2007Applicant: LG ELECTRONICS INC.Inventors: Sun-Kyoung LIM, Dai-Hyun KIM, Hag-Wone KIM
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Patent number: 7164395Abstract: Method for driving a plasma display panel, wherein an address reinforcement period is added between an address period and a sustain period, and a scan voltage Vw of positive polarity and a third DC voltage Zdc3 are applied, for inducing floating charges in discharge cells, whereby preventing erratic discharge caused by the floating charges at a high temperature.Type: GrantFiled: December 10, 2002Date of Patent: January 16, 2007Assignee: LG Electronics Inc.Inventors: Dae Jin Myoung, Dai Hyun Kim, Geun Soo Kim
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Patent number: 7046216Abstract: A plasma display panel that minimizes the power consumption required for driving the PDP is disclosed. A reset pulse of a ramp-down waveform supplied in a reset period goes down to a voltage level higher than a negative scan reference voltage, and is kept for a specified period. Also, a sustain pulse voltage level of a selective erase type sub-field is provided with a voltage level relatively higher than the sustain pulse provided from the selective write type sub-field, or a reset pulse of a ramp-up waveform that goes from a maximum voltage level of the ramp-up waveform down to a ground voltage level or more is supplied to a scan electrode as well as a selective erase scan pulse descends from a predetermined selective erase scan voltage level to the ground level or more. Therefore, the data driving voltage is minimized, and the display state is stabilized.Type: GrantFiled: July 8, 2002Date of Patent: May 16, 2006Assignee: LG Electronics Inc.Inventors: Geun Soo Lim, Jeong Pil Choi, Tae Hyung Kim, Dai Hyun Kim
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Patent number: 6876343Abstract: Method for driving a plasma display panel, wherein a pulse of ramp-down waveform is applied to scan electrode lines between a sustain period of a last selective write sub-field and an address period of a first selective erase sub-field continuous thereto, or between the sustain period of a preceding selective erase sub-field and the address period of a next selective erase sub-field continuous thereto after the first selective erase sub-field, whereby causing more stable address discharge at a higher sustain voltage, or a lower selective erase scan voltage.Type: GrantFiled: November 26, 2002Date of Patent: April 5, 2005Assignee: LG Electronics Inc.Inventors: DaeJin Myoung, Tae Hyung Kim, Dai Hyun Kim, Jong Woon Kwak, Geun Soo Lim
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Publication number: 20040233135Abstract: The present invention relates to a driving method of a plasma display panel for improving a picture quality. The driving method of a plasma display panel in which an nth frame having a first brightness weighting value and a (n+1)th frame having a brightness weighting value different from the first brightness weighting value are alternatively arranged every vertical synchronous signal to display a certain image, wherein one frame period of the nth frame or the (n+1)th frame is variably set such that a brightness expression period can be identically set at the nth frame and the (n+1)th frame.Type: ApplicationFiled: March 11, 2004Publication date: November 25, 2004Inventors: Dai Hyun Kim, Jeong Pil Choi, Kyu Seon Lee
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Publication number: 20040207571Abstract: A method and an apparatus for driving a plasma display panel with improved image quality are provided. The method for driving a PDP includes: determining whether a frame period is varied on the basis of order of an inputted vertical synchronization signal; varying the frame period; and shifting and arranging the first and second frames in the varied frame period.Type: ApplicationFiled: April 16, 2004Publication date: October 21, 2004Applicant: LG Electronics Inc.Inventor: Dai Hyun Kim
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Publication number: 20030214464Abstract: A method of driving a plasma display panel wherein a wide-band flicker can be minimized in a driving method of carrying out a selective writing and a selective erasing at the same time. In the method, the plasma display panel has first and second sustain electrodes and an address electrode and including at least one selective writing sub-fields for expressing a low gray level by turning on selected discharge cells and sustaining a discharge of the turned-on cells, and at least one selective erasing sub-fields for expressing a high gray level by sequentially turning off the cells turned on at the last selective writing sub-field of said selective writing sub-fields. Any one of said selective erasing sub-fields is divided into at least two sub-fields in such a manner to be arranged into low gray level sub-fields.Type: ApplicationFiled: May 16, 2003Publication date: November 20, 2003Inventors: Geun Soo Lim, Dai Hyun Kim
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Publication number: 20030189533Abstract: Method for driving a plasma display panel, wherein a pulse of ramp-down waveform is applied to scan electrode lines between a sustain period of a last selective write sub-field and an address period of a first selective erase sub-field continuous thereto, or between the sustain period of a preceding selective erase sub-field and the address period of a next selective erase sub-field continuous thereto after the first selective erase sub-field, whereby causing more stable address discharge at a higher sustain voltage, or a lower selective erase scan voltage.Type: ApplicationFiled: November 26, 2002Publication date: October 9, 2003Applicant: LG Electronics Inc.Inventors: DaeJin Myoung, Tae Hyung Kim, Dai Hyun Kim, Jong Woon Kwak, Geun Soo Lim