Patents by Inventor Hyun-Ho Lee
Hyun-Ho 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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Publication number: 20110121717Abstract: An organic electroluminescent display device includes: a first substrate having an active area displaying images and a non-active area surrounding the active area; a switching thin film transistor and a driving thin film transistor connected to the switching thin film transistor in the active area on the first substrate; an organic electroluminescent diode connected to the driving thin film transistor; a dummy metal pattern at a corner portion of the non-active area on the first substrate; a second substrate facing and spaced apart from the first substrate, the second substrate including a groove; and a seal pattern attaching the first and second substrates, wherein the dummy metal pattern overlaps a residue at a corner portion of the groove.Type: ApplicationFiled: August 12, 2010Publication date: May 26, 2011Inventors: Hyun-Ho LEE, Young-Hoon Sohn
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Patent number: 7925318Abstract: A slide type portable terminal can include a main unit including separated first and second key sections and a first plate coupled to a surface of the main unit and a display unit with a display screen on a front surface and a second plate. The second plate can slide with respect to the first plate and preferably slides along the surface of the main unit to cause the first and second key sections of the main unit to be covered and exposed by the display unit. Further, first and second magnets can be provided on the first and second plates, respectively, so that the same poles of the magnets face each other to provide a repulsive force when they are positioned to face close to each other. According to embodiments of the present invention, there are various advantages in that the portable terminal can be utilized more conveniently and production costs and failure rates thereof can also be reduced.Type: GrantFiled: January 27, 2010Date of Patent: April 12, 2011Assignee: LG Electronics Inc.Inventors: Sang-Hyuk Im, Hyun-Ho Lee, Chang-Il Lee, Kwon-Jin Kang, Red-Heat Oh, Ji-Sung Park
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Patent number: 7834952Abstract: Light beams are outputted from optical devices and mixed together to obtain uniform white light free from color stains, thereby achieving a backlight unit improved in light mixing feature. In the backlight unit, a surface light source has a reflecting surface with a plurality of optical devices mounted thereon. An optical sheet is disposed in front of the surface light source. A reflecting layer is disposed between the surface light source and the optical sheet and has reflectivity varied by an incident angle of light beams from the optical devices. The backlight unit enables the light beams from the optical devices to be mixed together. The light beams outputted from the optical devices are effectively mixed together by a reflecting layer having reflectively varied by an incident angle of the light beams from the optical devices, thereby achieving uniform white light without color stains.Type: GrantFiled: January 10, 2007Date of Patent: November 16, 2010Assignee: Samsung LED Co., Ltd.Inventors: Hyun Ho Lee, Hyeong Won Yun
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Patent number: 7795635Abstract: Disclosed herein is a backlight unit equipped with LEDs. The backlight includes an insulating substrate, a plurality of LED packages, an upper heat dissipation plate, and a lower heat dissipation plate. The insulating substrate is provided with predetermined circuit patterns. The LED packages are mounted above the insulating substrate, and are electrically connected to the circuit patterns. The upper heat dissipation plate is formed on the insulating substrate, and is configured to come into contact with the circuit patterns and to dissipate heat. The lower heat dissipation plate is formed on the insulating substrate, and is configured to transmit heat transmitted through the upper heat dissipation plate. The upper heat dissipation plate and the lower heat dissipation plate are connected to each other by at least one through hole, and the through hole and the upper heat dissipation plate have a predetermined area ratio.Type: GrantFiled: March 6, 2007Date of Patent: September 14, 2010Assignee: Samsung LED Co., Ltd.Inventors: Gi Ho Jeong, Jae Wook Kwon, Dong Jin Kim, Yoon Tak Yang, Hyeong Won Yun, Hyun Ho Lee, Jeong Hoon Park
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Publication number: 20100136736Abstract: A method for manufacturing a thin film type solar cell is disclosed, which is capable of reducing degradation of solar cell by decreasing the number of dangling bonding sites or SiH2 bonding sites existing in amorphous silicon owing to an optimal content ratio of ingredient gases, an optimal chamber pressure, or an optimal substrate temperature during a process for depositing an I-type semiconductor layer of amorphous silicon by a plasma CVD method, the method comprising forming a front electrode layer on a substrate; sequentially depositing P-type, I-type, and N-type semiconductor layers on the front electrode layer; and forming a rear electrode layer on the N-type semiconductor layer, wherein the process for forming the I-type semiconductor layer comprises forming an amorphous silicon layer by the plasma CVD method under such circumstances that at least one of the aforementioned conditions is satisfied, for example, a content ratio of silicon-containing gas to hydrogen-containing gas is within a range betweType: ApplicationFiled: December 1, 2009Publication date: June 3, 2010Applicant: JUSUNG ENGINEERING CO., LTD.Inventors: Chang Ho LEE, Hyung Dong KANG, Hyun Ho LEE, Yong Hyun LEE, Seon Myung KIM
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Publication number: 20100127281Abstract: Disclosed herein is a backlight unit equipped with LEDs. The backlight includes an insulating substrate, a plurality of LED packages, an upper heat dissipation plate, and a lower heat dissipation plate. The insulating substrate is provided with predetermined circuit patterns. The LED packages are mounted above the insulating substrate, and are electrically connected to the circuit patterns. The upper heat dissipation plate is formed on the insulating substrate, and is configured to come into contact with the circuit patterns and to dissipate heat. The lower heat dissipation plate is formed on the insulating substrate, and is configured to transmit heat transmitted through the upper heat dissipation plate. The upper heat dissipation plate and the lower heat dissipation plate are connected to each other by at least one through hole, and the through hole and the upper heat dissipation plate have a predetermined area ratio.Type: ApplicationFiled: January 26, 2010Publication date: May 27, 2010Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Gi Ho JEONG, Jae Wook Kwon, Dong Jin Kim, Yoon Tak Yang, Hyeong Won Yun, Hyun Ho Lee, Jeong Hoon Park
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Publication number: 20100130272Abstract: A slide type portable terminal can include a main unit including separated first and second key sections and a first plate coupled to a surface of the main unit and a display unit with a display screen on a front surface and a second plate. The second plate can slide with respect to the first plate and preferably slides along the surface of the main unit to cause the first and second key sections of the main unit to be covered and exposed by the display unit. Further, first and second magnets can be provided on the first and second plates, respectively, so that the same poles of the magnets face each other to provide a repulsive force when they are positioned to face close to each other. According to embodiments of the present invention, there are various advantages in that the portable terminal can be utilized more conveniently and production costs and failure rates thereof can also be reduced.Type: ApplicationFiled: January 27, 2010Publication date: May 27, 2010Inventors: Sang-Hyuk Im, Hyun-Ho Lee, Chang-Il Lee, Kwon-Jin Kang, Red-Heat Oh, Ji-Sung Park
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Publication number: 20100120783Abstract: The present invention relates to a compound having a good agonistic activity to melanocortin receptor, or pharmaceutically acceptable salt or isomer thereof, and an agonistic composition for melanocortin receptor comprising the same as an active ingredient.Type: ApplicationFiled: November 10, 2009Publication date: May 13, 2010Applicant: LG LIFE SCIENCE LTD.Inventors: Koo Lee, Sang Dae Lee, Sang Pil Moon, In Ae Ahn, Sung Pil Choi, Hyun Ho Lee, Dong Sup Shim, Soo Yong Chung, Hyun Min Lee
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Publication number: 20100085348Abstract: A display device and a method of driving the same are provided. The display device includes a display panel including a plurality of pixels defined in an area where a plurality of gate lines and data lines cross one another, a clock generator generating a gate clock signal using a clock generation control signal provided from a timing controller and a gate-on voltage, and a gate driver providing a gate signal to the gate lines in response to the gate clock signal. The gate signal includes a pre-charge period having a first gate-on level and a main-charge period having a second gate-on level that is higher than the first gate-on level.Type: ApplicationFiled: May 20, 2009Publication date: April 8, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Hyeon-Seok Bae, Sang -Chul Lee, Kwang-Youl Lee, Hyun-Ho Lee
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Patent number: 7660614Abstract: A slide type portable terminal can include a main unit including separated first and second key sections and a first plate coupled to a surface of the main unit and a display unit with a display screen on a front surface and a second plate. The second plate can slide with respect to the first plate and preferably slides along the surface of the main unit to cause the first and second key sections of the main unit to be covered and exposed by the display unit. Further, first and second magnets can be provided on the first and second plates, respectively, so that the same poles of the magnets face each other to provide a repulsive force when they are positioned to face close to each other. According to embodiments of the present invention, there are various advantages in that the portable terminal can be utilized more conveniently and production costs and failure rates thereof can also be reduced.Type: GrantFiled: November 21, 2007Date of Patent: February 9, 2010Assignee: LG Electronics Inc.Inventors: Sang-Hyuk Im, Hyun-Ho Lee, Chang-Il Lee, Kwon-Jin Kang, Red-Heat Oh, Ji-Sung Park
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Patent number: 7648254Abstract: In an LCD backlight unit using a light emitting diode, a double-sided printed circuit board includes a plurality of divided areas and conductive vias. A plurality of light emitting diodes are disposed on a top surface of the double-sided printed circuit board. A plurality of driving circuit connectors are disposed at a portion of the double-sided printed circuit board. A plurality of first lead patterns are formed on the top surface of the printed circuit board, each of the first lead patterns electrically connecting the light emitting diodes in each of the divided areas with one another. Also, a plurality of second lead patterns are formed on an underside surface of the double-sided printed circuit board to electrically connect the first lead patterns with the connectors through the conductive vias.Type: GrantFiled: April 13, 2007Date of Patent: January 19, 2010Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Chul Hee Yoo, Hyun Ho Lee, Yoon Tak Yang, Myoung Bo Park, Sang Yun Lee
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Publication number: 20090304570Abstract: Disclosed is a method for preparing a porous carbon structure, the method comprising the steps of: (a) mixing a carbon precursor, a pyrolytic template, which is pyrolyzed at the carbonization temperature of the carbon precursor or removed by post-treatment after the carbonization of the carbon precursor so as to form pores, and a solvent, to prepare a spray solution; and (b) subjecting the spray solution either to spray pyrolysis or to spray drying and then spray pyrolysis, so as to form a carbonized carbon structure, and then removing the template from the carbon structure. A mesoporous spherical carbon prepared according to the disclosed method may have a large specific surface area and a large pore volume through the control of the kind and concentration of template, and thus can be used in a wide range of applications, including catalysts, adsorbents, electrode materials, materials for separation and purification, and materials for storing hydrogen and drugs.Type: ApplicationFiled: December 10, 2007Publication date: December 10, 2009Inventors: Sang Ho Kim, Won Jong Kwon, Hyun-Ho Lee, Sunmi Jin, Jaehong Kim, Kwonnam Sohn, Ji Won Suk, Byung-Hee Choi
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Patent number: 7606513Abstract: An image-forming apparatus including a device to attach/detach a transfer roller that attaches and detaches the transfer roller to a main body frame, and the device to attach/detach a transfer roller supports one end of a transfer roller axis to rotate with respect to the main body frame and separates the end of the transfer roller axis from the main body frame by ascending and descending the end of the transfer roller axis in a slanting direction.Type: GrantFiled: March 24, 2006Date of Patent: October 20, 2009Assignee: Samsung Electronics Co., Ltd.Inventor: Hyun-ho Lee
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Publication number: 20090130984Abstract: An apparatus and method for intercepting packet data in a mobile communication system is provided. The method includes the steps of: storing intercepted target and interception related information when a target provision request message including the intercepted target and interception related information is received from a Service Provider ADministration Function (SPADF); establishing a data session of the intercepted target according to whether the data session of the intercepted target is established; and intercepting a packet of the intercepted target when the intercepted target starts packet data communication. Accordingly, solutions capable of properly performing Lawful Interception (LI) can be provided while achieving compliance with existing LI on packet data.Type: ApplicationFiled: October 19, 2007Publication date: May 21, 2009Applicant: Samsung Electronics Co., Ltd.Inventor: Hyun-Ho Lee
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Patent number: 7470309Abstract: The present invention relates to an economically excellent method for manufacturing ultra fine tungsten carbide-cobalt composite powder having tungsten compound and cobalt compound as its raw material. More particularly, the present invention provides a manufacturing method comprising a process for mixing tungsten compounds, cobalt compounds, grain-grown inhibitor compounds and oxide in a mechanical method, a calcination process for removing ammonia and moisture of the mixed powder and forming it into an composite oxide, a reduction process for manufacturing said calcined powder into pure metal powder, a mixing process for adding carbon source to said reduced powder, and a carburization process for manufacturing the mixed powder into a tungsten carbide-cobalt composite powder, which is the final form. Using the manufacturing method of the present invention, ultra-fine tungsten carbide-cobalt composite powder having an ultra-fine particle size of 0.1˜0.2 ?m, 0.2˜0.3 ?m,0.3˜0.Type: GrantFiled: April 27, 2006Date of Patent: December 30, 2008Assignee: Nanotech Co., Ltd.Inventors: Sang-Myun Kim, Hyun-Ho Lee, Min-Sun Hur
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Patent number: 7425729Abstract: An LED backlight unit includes a light source; a board including a circuit pattern printed on an underside thereof, and having at least one mounting hole perforated therein where the light source is inserted; a metal chassis having an inside surface on which an underside of the light source is mounted, and receiving the board to be arranged in parallel to and with a gap from the metal chassis; and a reflector arranged on a top surface of the board to reflect light generated from the light source. The heat radiating path for transferring heat from the light source to the outside can be more simplified to enhance heat radiation efficiency thereby raising product reliability. The number of whole components can be reduced and the board with the light mounted thereon can be replaced with an inexpensive part thereby saving fabrication cost.Type: GrantFiled: October 12, 2006Date of Patent: September 16, 2008Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Hyeong Won Yun, Hyun Ho Lee
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Patent number: 7387421Abstract: A backlight unit for a liquid crystal display is provided. The backlight unit includes a surface light source, a diffuser sheet uniformly diffusing incident light from the surface light source, and a light collection sheet collecting light diffused by the diffuser sheet. The surface light source includes a first LED arrangement in which two green LEDs, a red Led, and a blue LED are arranged in this order and a second LED arrangement in which two green LEDs, a blue LED, and a red LED are arranged in this order. The first and second LED arrangements are done along rows or columns, and, in a combination of the first and second LED arrangement, the two green LEDs are surrounded by the red and/or blue LEDs.Type: GrantFiled: July 11, 2006Date of Patent: June 17, 2008Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Hyun Ho Lee, Jae Wook Kwon, Hyeong Won Yun
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Publication number: 20080117573Abstract: A slide type portable terminal can include a main unit including separated first and second key sections and a first plate coupled to a surface of the main unit and a display unit with a display screen on a front surface and a second plate. The second plate can slide with respect to the first plate and preferably slides along the surface of the main unit to cause the first and second key sections of the main unit to be covered and exposed by the display unit. Further, first and second magnets can be provided on the first and second plates, respectively, so that the same poles of the magnets face each other to provide a repulsive force when they are positioned to face close to each other. According to embodiments of the present invention, there are various advantages in that the portable terminal can be utilized more conveniently and production costs and failure rates thereof can also be reduced.Type: ApplicationFiled: November 21, 2007Publication date: May 22, 2008Inventors: Sang-Hyuk IM, Hyun-Ho Lee, Chang-ll Lee, Kwon-Jin Kang, Red-Heat Oh, Ji-Sung Park
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Patent number: 7363066Abstract: A slide type portable terminal can include a main unit including separated first and second key sections and a first plate coupled to a surface of the main unit and a display unit with a display screen on a front surface and a second plate. The second plate can slide with respect to the first plate and preferably slides along the surface of the main unit to cause the first and second key sections of the main unit to be covered and exposed by the display unit. Further, first and second magnets can be provided on the first and second plates, respectively, so that the same poles of the magnets face each other to provide a repulsive force when they are positioned to face close to each other. According to embodiments of the present invention, there are various advantages in that the portable terminal can be utilized more conveniently and production costs and failure rates thereof can also be reduced.Type: GrantFiled: February 24, 2004Date of Patent: April 22, 2008Assignee: LG Electronics Inc.Inventors: Sang-Hyuk Im, Hyun-Ho Lee, Chang-Il Lee, Kwon-Jin Kang, Red-Heat Oh, Ji-Sung Park
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Publication number: 20080019747Abstract: An image forming apparatus includes a roller shaft, a paper-transporting which is coupled to the roller shaft and transports a document, a driving part to supply a rotational driving force to the paper-transporting roller, a driving wheel which is coupled to the roller shaft and rotates along with the roller shaft, and a clutch unit which includes a clutch shaft having an axial line deviated from an axial line of the roller shaft, a transmission wheel connected with the clutch shaft and which transmits the driving force to the driving wheel, and a rotation connecting part to selectively transmit the rotational driving force to the transmission wheel.Type: ApplicationFiled: July 16, 2007Publication date: January 24, 2008Applicant: Samsung Electronics Co., Ltd.Inventor: Hyun-ho LEE