Patents by Inventor Dong-Chul Shin
Dong-Chul Shin 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: 8582061Abstract: An optical film assembly includes a first polarization plate disposed below a liquid crystal layer and having a first absorption axis, a second polarization plate disposed above the liquid crystal layer and having a second absorption axis, an A-plate disposed between the first polarization plate and the second polarization plate, and a negative C-plate disposed between the first polarization plate and the second polarization plate. A thickness-direction phase retardation value of the negative C-plate is equal to or less than a value acquired by subtracting about 75 nanometers from a thickness-direction phase retardation value of the liquid crystal layer and the thickness-direction phase retardation value of the negative C-plate is equal to or greater than a value acquired by subtracting about 275 nanometers from the thickness-direction phase retardation value of the liquid crystal layer.Type: GrantFiled: December 7, 2009Date of Patent: November 12, 2013Assignee: Samsung Display Co., Ltd.Inventors: Hwa-Sung Woo, Seung-Ju Lee, Hee-Wook Do, Jeong-Soo Choi, Hee-Seop Kim, Joo-Seok Yeom, Hyang-Yul Kim, Joo-Nyung Jang, Sung-Woon Kim, Cheol Shin, Dong-Chul Shin
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Publication number: 20130228747Abstract: There is provided a nitride semiconductor light emitting device including an active layer having enhanced external quantum efficiency at both low and high current density. The nitride semiconductor light emitting device includes a first conductivity type nitride semiconductor layer; an active layer disposed on the first conductivity type nitride semiconductor layer and having a plurality of quantum well layers and at least one quantum barrier layer alternately arranged; and a second conductivity type nitride semiconductor layer disposed on the active layer. The plurality of quantum well layers disposed adjacent to each other include first and second quantum well layers having different thicknesses.Type: ApplicationFiled: April 2, 2013Publication date: September 5, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang Heon HAN, Joo Young CHEON, Je Won KIM, Dong Ju LEE, Dong Chul SHIN, Hyun Wook SHIM, Jae Woong HAN
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Patent number: 8471991Abstract: An array substrate includes first and second pixel electrodes. The first pixel electrode includes a plurality of first slit electrode portions and a first supporting electrode portion connected with the first slit electrode portions. The first slit electrode portions extend in a zigzag fashion along the shape of a unit pixel area and a first direction. The second pixel electrode includes a plurality of second slit electrode portions and a second supporting electrode portion connected with the second slit electrode portion. The second slit electrode portions extend in the zigzag fashion along the shape of the unit pixel area and the first direction. Side visibility and a response time may be improved, so that display quality may be improved.Type: GrantFiled: November 2, 2009Date of Patent: June 25, 2013Assignee: Samsung Display Co., Ltd.Inventors: Cheol Shin, Hwa-Sung Woo, Kwang-Chul Jung, Dong-Gyu Kim, Hyang-Yul Kim, Joo-Nyung Jang, Dong-Chul Shin, Hee-Seop Kim
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Patent number: 8436955Abstract: A liquid crystal display wherein a first power source supply line and a second power source supply line are respectively applied with a first voltage and a second voltage having a predetermined magnitude, and a first power source supply line and a second power source supply line are disposed as a pair between a first pixel electrode and a second pixel electrode. The first voltage and the second voltage may have different polarities.Type: GrantFiled: February 25, 2011Date of Patent: May 7, 2013Assignee: Samsung Display Co., Ltd.Inventors: Hwa-Sung Woo, Dong-Gyu Kim, Hyang-Yul Kim, Joo-Nyung Jang, Sung-Woon Kim, Cheol Shin, Dong-Chul Shin
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Patent number: 8427594Abstract: A liquid crystal display includes: a first substrate and a second substrate disposed opposite the first substrate; a liquid crystal layer interposed between the first and second substrates and including liquid crystal molecules; a gate line which transmits a gate signal; first and second data lines which respectively transmit first and second data voltages, the first and second data voltages having opposite polarities; a first switching element connected to the gate line and the first data line; a second switching element connected to the gate line and the second data line; a first subpixel electrode connected to the first switching element; and a second subpixel electrode connected to the second switching element. The first and second subpixel electrodes overlap portions of the first and second data lines. The first and second subpixel electrodes include first and second branches, respectively, which are alternately arranged between the first and second data lines.Type: GrantFiled: January 11, 2010Date of Patent: April 23, 2013Assignee: Samsung Display Co., Ltd.Inventors: Sung-Woon Kim, Hee-Seop Kim, Hyang-Yul Kim, Joo-Nyung Jang, Chong-Chul Chai, Mee-Hye Jung, Hwa-Sung Woo, Cheol Shin, Dong-Chul Shin
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Publication number: 20130018052Abstract: The present invention provides a novel 2-pyridyl substituted imidazole derivative, or a pharmaceutically acceptable salt or solvate thereof, which selectively inhibits the transforming growth factor-? (TGF-?) type I receptor (ALK5) and/or the activin type I receptor (ALK4); a pharmaceutical composition comprising same as an active ingredient; and a use of the 2-pyridyl substituted imidazole derivative for the manufacture of a medicament for preventing or treating a disease mediated by ALK5 and/or ALK4 receptors in a mammal.Type: ApplicationFiled: July 13, 2012Publication date: January 17, 2013Applicant: SK CHEMICALS CO., LTD.Inventors: Ju Young LEE, Keun-Ho RYU, Jae-Sun KIM, Yong-Hyuk KIM, Dong Chul SHIN, Bong-yong LEE, Sang-hwan KANG, Hyun-Jung LEE, Hoechul JUNG, Young Ah SHIN, Euisun PARK, Jaeseung AHN
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Publication number: 20120315578Abstract: Disclosed herein are an apparatus and a method for spin coating, and a method for manufacturing a substrate having a structure. The spin-coating apparatus includes a support to support a substrate having a structure, a motor to rotate the support to perform spin-coating with respect to the structure, and a heat source to heat a coating material which is subjected to the spin-coating to perform pre-baking. The method for spin-coating a substrate having a structure includes preparing the substrate having the structure of a predetermined height formed on an upper portion thereof, coating the structure of the substrate with photoresist, and performing spin-coating of the photoresist in a place in which a heat source is provided, while performing pre-baking of the photoresist.Type: ApplicationFiled: May 1, 2012Publication date: December 13, 2012Inventors: Seung Seoup LEE, Dong Chul Shin
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Patent number: 8264778Abstract: A display substrate includes a base substrate, a reflection-polarization member, a first electrode, an insulation layer and a pixel wall. The reflection-polarization member is disposed on the base substrate to reflect and polarize incident light. The first electrode is disposed in a unit pixel area of the reflection-polarization member. The insulation layer is disposed on the first electrode. The pixel wall is disposed on the insulation layer and defines the unit pixel area. Therefore, the entire area of a unit pixel may be used as a reflective area or a transmissive area, and thus an aperture ratio may be improved in a reflection mode or a transmission mode.Type: GrantFiled: April 8, 2011Date of Patent: September 11, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hyang-Yul Kim, Hee-Seop Kim, Joo-Nyung Jang, Hwa-Sung Woo, Cheol Shin, Dong-Chul Shin, Yong-Hwan Shin
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Patent number: 8259278Abstract: A liquid crystal display includes; first and second substrates facing each other, a liquid crystal layer interposed between the first and second substrates and including liquid crystal molecules, a first subpixel electrode disposed on the first substrate, the first subpixel electrode receiving a first data voltage, a second subpixel electrode disposed on the first substrate, the second subpixel electrode receiving a second data voltage; and a short protrusion disposed on the second substrate and simultaneously facing the first and second subpixel electrodes, wherein the liquid crystal layer is vertically aligned and has positive dielectric anisotropy.Type: GrantFiled: July 23, 2009Date of Patent: September 4, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Woon Kim, Hwa-Sung Woo, Joo-Nyung Jang, Mi-Jeong Song, Hwang-Yul Kim, Cheol Shin, Dong-Chul Shin, Hee-Seop Kim, Jung-Hyeon Kim
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Patent number: 8228456Abstract: A liquid crystal display includes; a first substrate, a gate line disposed on the first substrate, a first data line disposed substantially perpendicularly to the gate line on the first substrate, and which insulates and the gate line, a first thin film transistor connected to the gate line and the first data line, a first pixel electrode connected to the first thin film transistor, a liquid crystal capacitor including the first pixel electrode and a second pixel electrode as two terminals thereof, and a liquid crystal layer disposed between the first pixel electrode and the second pixel electrode, and a short transistor having a control terminal connected to a previous gate line, and which is controlled to short the first pixel electrode to a voltage approaching a voltage of the second pixel electrode.Type: GrantFiled: November 16, 2009Date of Patent: July 24, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Woon Kim, Hee-Seop Kim, Hyang-Yul Kim, Joo-Nyung Jang, Hwa-Sung Woo, Cheol Shin, Dong-Chul Shin
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Publication number: 20120044448Abstract: Exemplary embodiments of the present invention provide a liquid crystal display that includes a first substrate, a gate line positioned on the first substrate, a data line and a voltage line crossing the gate line, a first switching element connected to the gate line and the data line, a second switching element connected to the gate line and the voltage line, a first pixel electrode connected to the first switching element and including a plurality of branches inclined with respect to the gate line, and a second pixel electrode connected to the second switching element and including a plurality of branches parallel to the first branches, wherein the sum of the lengths of the first branches is 90% to 100% of the sum of the lengths of the second branches.Type: ApplicationFiled: May 13, 2011Publication date: February 23, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyang-Yul KIM, Dong-Gyu KIM, Joo-Nyung JANG, Sung-Woon KIM, Hwa-Sung WOO, Cheol SHIN, Dong-Chul SHIN
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Publication number: 20120013814Abstract: A liquid crystal display wherein a first power source supply line and a second power source supply line are respectively applied with a first voltage and a second voltage having a predetermined magnitude, and a first power source supply line and a second power source supply line are disposed as a pair between a first pixel electrode and a second pixel electrode. The first voltage and the second voltage may have different polarities.Type: ApplicationFiled: February 25, 2011Publication date: January 19, 2012Inventors: Hwa-Sung Woo, Dong-Gyu Kim, Hyang-Yul Kim, Joo-Nyung Jang, Sung-Woon Kim, Cheol Shin, Dong-Chul Shin
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Patent number: 8089570Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a first and second substrate facing each other, a liquid crystal layer interposed between the substrates, a plurality of gate lines disposed on the first substrate, configured to transmit a gate signal, at least one data line disposed on the first substrate, configured to transmit a data signal, a plurality of power supplying lines disposed on the first substrate, a plurality of switching elements variously connected to the gate lines, data lines, and power supplying lines, a plurality of pixel electrodes connected to the switching elements, wherein corresponding pixel electrodes are separated from each other.Type: GrantFiled: March 29, 2010Date of Patent: January 3, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Woon Kim, Hee-Seop Kim, Hyang-Yul Kim, Joo-Nyung Jang, Soon-Joon Rho, Hwa-Sung Woo, Cheol Shin, Dong-Chul Shin
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Patent number: 8068266Abstract: A display substrate includes a base substrate, a reflection-polarization member, a first electrode, an insulation layer and a pixel wall. The reflection-polarization member is disposed on the base substrate to reflect and polarize incident light. The first electrode is disposed in a unit pixel area of the reflection-polarization member. The insulation layer is disposed on the first electrode. The pixel wall is disposed on the insulation layer and defines the unit pixel area. Therefore, the entire area of a unit pixel may be used as a reflective area or a transmissive area, and thus an aperture ratio may be improved in a reflection mode or a transmission mode.Type: GrantFiled: July 14, 2009Date of Patent: November 29, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Hyang-Yul Kim, Hee-Seop Kim, Joo-Nyung Jang, Hwa-Sung Woo, Cheol Shin, Dong-Chul Shin, Yong-Hwan Shin
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Publication number: 20110181952Abstract: A display substrate includes a base substrate, a reflection-polarization member, a first electrode, an insulation layer and a pixel wall. The reflection-polarization member is disposed on the base substrate to reflect and polarize incident light. The first electrode is disposed in a unit pixel area of the reflection-polarization member. The insulation layer is disposed on the first electrode. The pixel wall is disposed on the insulation layer and defines the unit pixel area. Therefore, the entire area of a unit pixel may be used as a reflective area or a transmissive area, and thus an aperture ratio may be improved in a reflection mode or a transmission mode.Type: ApplicationFiled: April 8, 2011Publication date: July 28, 2011Inventors: Hyang-Yul KIM, Hee-Seop KIM, Joo-Nyung JANG, Hwa-Sung WOO, Cheol SHIN, Dong-Chul SHIN, Yong-Hwan SHIN
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Publication number: 20110121259Abstract: There is provided a nitride semiconductor light emitting device including an active layer having enhanced external quantum efficiency at both low and high current density. The nitride semiconductor light emitting device includes a first conductivity type nitride semiconductor layer; an active layer disposed on the first conductivity type nitride semiconductor layer and having a plurality of quantum well layers and at least one quantum barrier layer alternately arranged; and a second conductivity type nitride semiconductor layer disposed on the active layer. The plurality of quantum well layers disposed adjacent to each other include first and second quantum well layers having different thicknesses.Type: ApplicationFiled: October 12, 2010Publication date: May 26, 2011Inventors: Sang Heon HAN, Joo Young CHEON, Je Won KIM, Dong Ju LEE, Dong Chul SHIN, Hyun Wook SHIM, Jae Woong HAN
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Publication number: 20110037913Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a first and second substrate facing each other, a liquid crystal layer interposed between the substrates, a plurality of gate lines disposed on the first substrate, configured to transmit a gate signal, at least one data line disposed on the first substrate, configured to transmit a data signal, a plurality of power supplying lines disposed on the first substrate, a plurality of switching elements variously connected to the gate lines, data lines, and power supplying lines, a plurality of pixel electrodes connected to the switching elements, wherein corresponding pixel electrodes are separated from each other.Type: ApplicationFiled: March 29, 2010Publication date: February 17, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Sung-Woon KIM, Hee-Seop Kim, Hyang-Yul Kim, Joo-Nyung Jang, Soon-Joon Rho, Hwa-Sung Woo, Cheol Shin, Dong-Chul Shin
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Publication number: 20100328593Abstract: An optical film assembly includes a first polarization plate disposed below a liquid crystal layer and having a first absorption axis, a second polarization plate disposed above the liquid crystal layer and having a second absorption axis, an A-plate disposed between the first polarization plate and the second polarization plate, and a negative C-plate disposed between the first polarization plate and the second polarization plate. A thickness-direction phase retardation value of the negative C-plate is equal to or less than a value acquired by subtracting about 75 nanometers from a thickness-direction phase retardation value of the liquid crystal layer and the thickness-direction phase retardation value of the negative C-plate is equal to or greater than a value acquired by subtracting about 275 nanometers from the thickness-direction phase retardation value of the liquid crystal layer.Type: ApplicationFiled: December 7, 2009Publication date: December 30, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hwa-Sung WOO, Seung-Ju LEE, Hee-Wook DO, Jeong-Soo CHOI, Hee-Seop KIM, Joo-Seok YEOM, Hyang-Yul KIM, Joo-Nyung JANG, Sung-Woon KIM, Cheol SHIN, Dong-Chul SHIN
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Publication number: 20100302471Abstract: A liquid crystal display includes: first and second gate lines disposed on the first substrate and which respectively transmit first and second gate signals; first, second and third data lines disposed on the first substrate; a first switching element connected to the first gate line and the first data line; a second switching element connected to the first gate line and the second data line; a third switching element connected to the second gate line and the second data line; a fourth switching element connected to the second gate line and the third data line; first and second pixel electrodes respectively connected to the first and second switching and which form a first liquid crystal capacitor; and third and fourth pixel electrodes respectively connected to the third and fourth switching elements and which form a second liquid crystal capacitor.Type: ApplicationFiled: December 31, 2009Publication date: December 2, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung-Woon KIM, Hee-Seop KIM, Hyang-Yul KIM, Joo-Nyung JANG, Hwa-Sung WOO, Cheol SHIN, Dong-Chul SHIN
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Publication number: 20100296015Abstract: A liquid crystal display includes: a first substrate and a second substrate disposed opposite the first substrate; a liquid crystal layer interposed between the first and second substrates and including liquid crystal molecules; a gate line which transmits a gate signal; first and second data lines which respectively transmit first and second data voltages, the first and second data voltages having opposite polarities; a first switching element connected to the gate line and the first data line; a second switching element connected to the gate line and the second data line; a first subpixel electrode connected to the first switching element; and a second subpixel electrode connected to the second switching element. The first and second subpixel electrodes overlap portions of the first and second data lines. The first and second subpixel electrodes include first and second branches, respectively, which are alternately arranged between the first and second data lines.Type: ApplicationFiled: January 11, 2010Publication date: November 25, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung-Woon KIM, Hee-Seop KIM, Hyang-Yul KIM, Joo-Nyung JANG, Chong-Chul CHAI, Mee-Hye JUNG, Hwa-Sung WOO, Cheol SHIN, Dong-Chul SHIN