Patents by Inventor Jae Hyuk Chang
Jae Hyuk Chang 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).
-
Patent number: 8331011Abstract: Disclosed is a display device including a substrate having a unit pixel area, a fixed member formed on the substrate to receive a ground voltage, an insulating layer formed on the fixed member, a fixed electrode formed on the insulating layer to receive a common voltage, and a plurality of movable members partially fixed on the insulating layer. The movable members are spaced apart from the fixed electrode at regular intervals, and the plurality of movable members and the fixed electrode are placed within the unit pixel area.Type: GrantFiled: October 6, 2009Date of Patent: December 11, 2012Assignee: Samsung Display Co., Ltd.Inventors: Jae-Hyuk Chang, Cheol-Woo Park
-
Publication number: 20120231567Abstract: A method of forming a metal pattern includes forming a precursor layer including a metal precursor on a substrate, irradiating a light on the precursor layer to form a metal seed layer having a predetermined pattern, and electroless-plating the metal seed layer to form a metal pattern layer.Type: ApplicationFiled: February 27, 2012Publication date: September 13, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jeong-Hoon BYEON, In-Seok YEO, Jae-Hyuk CHANG, Seung-Jun LEE, Hyun-Seok KIM, Sung-Hee LEE
-
Patent number: 8253941Abstract: An apparatus for manufacturing a display panel includes an arriving part in which an unfinished display panel is disposed. The apparatus has at least one light transmitting part, a mold which is positioned on the arriving part and which includes at least one alignment key and a pattern forming part, a mold driver which drives the mold, and an alignment sensor which is positioned under the arriving part and which determines whether the display panel and the mold are erroneously aligned through the light transmitting part. Therefore, it is possible to efficiently and accurately pattern a specific material onto the display panel through an imprint lithography process using a pressing mold.Type: GrantFiled: August 31, 2006Date of Patent: August 28, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Hyuk Chang, Nam-Seok Roh, Jung-Mok Bae
-
Publication number: 20120058273Abstract: An ink composition, and a method of forming a pattern, a color filter and a method of manufacturing the color filter using the same. The ink composition includes a binder resin, a multifunctional monomer having an ethylenic unsaturated double bond, a coloring agent, a polymerization initiator containing a certain positive ion and a solvent. Therefore, the composition has excellent coating property and chemical resistance and also an improved adhesion to a printing member, and thus the ink composition may be useful in forming a precise micropattern using a roll printing method, particularly a reversed printing method.Type: ApplicationFiled: September 1, 2011Publication date: March 8, 2012Applicants: DONGWOO FINE-CHEM CO., LTD., Samsung Electronics Co., Ltd.Inventors: Seung-Jun LEE, Gug Rae JO, Jae-Hyuk CHANG, Hyun-Seok KIM, Sung Hee LEE, Sang-Tae KIM, Yong Seok CHOI, Sung Bae MOON, In Kak SONG, Seung-Yong LEE
-
Publication number: 20120031290Abstract: The present invention relates to a cliché, a manufacturing method of a cliché, and a pattern formed by a roll printing method to prevent deteriorations due to sagging and a disconnection of an end portion or a rounded angular portion, the cliché having a surface formed with a groove, wherein the end portion of the groove has a narrower width than the width of the center portion of the groove.Type: ApplicationFiled: December 15, 2010Publication date: February 9, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seung-Jun LEE, Jae-Hyuk CHANG, Hyun-Seok KIM, Sung Hee LEE, Gug-Rae JO, Sin KWON
-
Publication number: 20120033172Abstract: A method of forming a pattern and a manufacturing method of a liquid crystal display includes forming the pattern with a thin thickness by coating a pattern material on a printing roll using a nozzle, removing a surplus portion of the pattern material from the printing roll by using a plate, and transferring the pattern material remaining on the printing roll to a substrate to form the pattern.Type: ApplicationFiled: January 20, 2011Publication date: February 9, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae-Hyuk CHANG, Seung-Jun LEE, Hyun-Seok KIM, Sung Hee LEE, Gug-Rae JO, Sin KWON
-
Publication number: 20120021139Abstract: A method of manufacturing a display device in which a film deposited on a substrate through openings in a covering layer is easily removed from the covering layer, is described herein, includes forming a master layer having a predetermined pattern of openings on a base substrate; spraying a light shielding material on the master layer; fabricating a mold provided with the light shielding film by forming a moldable material layer on the base substrate and the master layer; curing the moldable material layer and the light shielding material; arranging, pressurizing, and exposing the mold on an insulation substrate having a photosensitive film formed thereon after separating the mold from the master layer; and developing the photosensitive film after separating the mold from the insulation substrate.Type: ApplicationFiled: September 23, 2011Publication date: January 26, 2012Inventors: Jae-hyuk CHANG, Mun-pyo Hong, Nam-seok Roh
-
Patent number: 8043550Abstract: A method of manufacturing a display device in which a film deposited on a substrate through openings in a covering layer is easily removed from the covering layer, is described herein, includes forming a master layer having a predetermined pattern of openings on a base substrate; spraying a light shielding material on the master layer; fabricating a mold provided with the light shielding film by forming a moldable material layer on the base substrate and the master layer; the moldable material layer and the light shielding material; arranging, pressurizing, and exposing the mold on an insulation substrate having a photosensitive film formed thereon after separating the mold from the master layer; and developing the photosensitive film after separating the mold from the insulation substrate.Type: GrantFiled: November 2, 2006Date of Patent: October 25, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-hyuk Chang, Mun-pyo Hong, Nam-seok Roh
-
Publication number: 20110254793Abstract: Disclosed is a panel operating apparatus. The panel operating apparatus changes a state of a display device electrically connected to a circuit board located below a panel. The panel operating apparatus includes a tact member mounted on the circuit board, and a resilient member electrically connected to a circuit pattern of the circuit board and separated from the panel and the circuit board. The resilient member is selectively brought into contact with the panel or the tact member depending on a degree of pressure applied to the panel, thereby allowing the apparatus to be operated in a tact manner when the apparatus cannot be operated in a touch manner due to individual features of operators or external conditions.Type: ApplicationFiled: December 30, 2009Publication date: October 20, 2011Applicant: SEOUL SEMICONDUCTOR CO., LTD.Inventors: Hee Jeong Ban, Jae-Hyuk Chang, Hyun-Seok Kim
-
Patent number: 8040474Abstract: A mold for a display device, comprising a supporting frame; at least one pattern forming part provided on a surface of the supporting frame; and a protrusion projecting from the supporting frame and disposed along the circumference of the pattern forming part, an inside wall of the protrusion toward the pattern forming part standing upright from the surface of the supporting frame.Type: GrantFiled: February 7, 2007Date of Patent: October 18, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Nam-seok Roh, Mun-pyo Hong, Jae-hyuk Chang, Jung-mok Bae
-
Publication number: 20110146515Abstract: A printing plate for gravure printing includes; a base body, a first convex portion disposed having a first height on the base body, a concave portion disposed between adjacent regions of the first convex portion, and a second convex portion disposed in the concave portion and having a second height smaller than that of the first height, wherein the concave portion includes a first concave portion and a second concave portion and a width of the second concave portion is larger than that of the first concave portion, and the second convex portion is disposed within the second concave portion.Type: ApplicationFiled: May 27, 2010Publication date: June 23, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Youn-Gu Lee, Seung-Jun Lee, Kyu-Young Kim, Nam-Ok Jung, Jae-Hyuk Chang
-
Patent number: 7957048Abstract: A display device includes an upper substrate and a lower substrate. Black matrixes are formed upon the upper substrate and color filters are formed between the black matrixes. Microshutter electrodes are formed upon the lower substrate and are configured to open and close. The display device also includes fixed electrodes formed in a vertical direction between the upper substrate and the lower substrate.Type: GrantFiled: August 6, 2007Date of Patent: June 7, 2011Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Jae-Hyuk Chang, Seong-Sik Shin, Nam-Seok Roh, Jun-Bo Yoon, Kyung-Ho Lee
-
Patent number: 7948588Abstract: A thin film transistor (TFT) array panel that automatically matches the gamma curves of the reflective mode and the transmissive mode is presented. The TFT array panel includes a substrate, a switching element formed on the substrate and including an input terminal, an output terminal, and a control terminal. A transmissive electrode is connected to the output terminal, and a first reflective electrode is connected to the output terminal. A storage electrode is formed on a layer that underlies the output terminal and separated from the output terminal to form a storage capacitor with the output terminal. A second reflective electrode is formed on a layer that is above the output terminal and separated from the output terminal to form an auxiliary capacitor with the output terminal.Type: GrantFiled: October 3, 2006Date of Patent: May 24, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Young-Chol Yang, Jae-Hyuk Chang, Jeong-Ye Choi
-
Patent number: 7875477Abstract: A method of manufacturing a liquid crystal display at a reduced cost is presented. The method entails: preparing an insulating substrate; forming a gate line and a data line on the insulating substrate to define a pixel area; forming a thin film transistor at an intersection of the gate line and the data line; forming A passivation layer on the thin film transistor; positioning a mold having a concavo-convex pattern on the organic passivation layer, pressing the mold, and forming the concavo-convex pattern on the surface of the organic passivation layer. A pixel electrode on the organic passivation layer is formed.Type: GrantFiled: July 19, 2006Date of Patent: January 25, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-hyuk Chang, Nam-seok Roh, Mun-pyo Hong, Dae-jin Park
-
Patent number: 7851557Abstract: Disclosed is an organic/inorganic composite electrolyte membrane comprising: (a) a sulfonated fluorine-free hydrocarbon-based polymer; and (b) inorganic particles capable of collecting moisture, wherein the inorganic particles include zeolite. Also, disclosed are an electrode comprising the zeolite as a component for forming a catalyst layer, a membrane electrode assembly comprising the electrolyte membrane and/or the electrode, and a fuel cell having the membrane electrode assembly. The organic/inorganic composite electrolyte membrane using the hydrophilic zeolite in combination with the sulfonated fluorine-free hydrocarbon-based polymer shows high proton conductivity, and thus can impart excellent quality to a fuel cell even under high-temperature and low-humidity conditions.Type: GrantFiled: June 19, 2007Date of Patent: December 14, 2010Assignee: LG Chem, Ltd.Inventors: Yong Su Park, Chong Kyu Shin, Kwon Nam Sohn, Bong Keun Lee, Jae Hyuk Chang, Eun Ju Kim
-
Patent number: 7817228Abstract: A manufacturing method of an LCD comprises forming an insulating substrate; forming a gate line extending in a horizontal direction and a data line insulatively crossing the gate line to define a pixel area on the insulating substrate; forming a TFT disposed at an intersection of the gate line and the data line and comprising a drain electrode; forming an organic passivation layer on the TFT; forming a drain contact hole exposing the drain electrode and forming an embossing pattern in the organic passivation layer by disposing and pressurizing a mold having an intaglio pattern corresponding to the pixel area and a projection corresponding to the drain electrode on the organic passivation layer; and forming a pixel electrode connected to the drain electrode through the drain contact hole.Type: GrantFiled: April 5, 2006Date of Patent: October 19, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-hyuk Chang, Mun-pyo Hong, Nam-seok Roh, Dae-jin Park
-
Patent number: 7807759Abstract: The present invention relates to a branched and sulphonated multi block copolymer and an electrolyte membrane using the same, more precisely, a branched and sulphonated multi block copolymer composed of the repeating unit represented by formula 1 and a preparation method thereof, a hydrogenated branched and sulphonated multi block copolymer, a branched and sulphonated multi block copolymer electrolyte membrane and a fuel cell to which the branched and sulphonated multi block copolymer electrolyte membrane is applied. The electrolyte membrane of the present invention has high proton conductivity and excellent mechanical properties as well as chemical stability, so it can be effectively used for the production of thin film without the decrease of membrane properties according to the increase of sulfonic acid group since it enables the regulation of the distribution, the location and the number of sulfonic acid group in polymer backbone.Type: GrantFiled: November 21, 2005Date of Patent: October 5, 2010Assignee: LG Chem, Ltd.Inventors: Chong-kyu Shin, Young-ji Tae, Jae-hyuk Chang, Bong-keun Lee, Chang-ae Cho, Sang-hyun Lee, Hwang-chan Yoo, Go-young Moon
-
Patent number: 7790532Abstract: In a method of manufacturing a thin film transistor substrate, a gate line and a gate electrode are formed on a substrate. A gate insulating layer is formed to cover the gate line and the gate electrode. A semiconductor layer is formed on the gate insulating layer to overlap with the gate electrode. A data line, a source electrode, and a drain electrode are formed on the gate insulating layer and the semiconductor layer. A photoresist layer is formed on the data line, the source electrode, and the drain electrode. The photoresist layer is patterned, and an organic layer is formed on the substrate having the photoresist layer pattern. Then, the photoresist layer pattern is removed.Type: GrantFiled: November 26, 2008Date of Patent: September 7, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Hyuk Chang, Kyu-Young Kim
-
Patent number: 7777936Abstract: The present invention relates to a display device including a substrate having a display area, a first electrode disposed on the substrate to receive a first voltage, a second electrode disposed on the substrate to receive a second voltage having an opposite polarity to that of the first voltage, an insulating layer disposed on the first electrode and the second electrode, and an isolated member disposed on the insulating layer and electrically isolated, wherein an induction charge is generated in the isolated member by application of the first voltage and the second voltage, and wherein light transmittance is controlled according to the application of the first and second voltages.Type: GrantFiled: July 2, 2008Date of Patent: August 17, 2010Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Jae-Hyuk Chang, Nam-Seok Roh, Seong-Sik Shin, Ju-Han Bae, Kyung-Ho Lee, Jun-Bo Yoon
-
Patent number: 7768595Abstract: A display device includes a substrate, a pixel electrode formed on the substrate and allowing light to be transmitted therethrough, a micro-shutter electrode formed on the pixel electrode to be opened and closed, and a reflection preventing layer formed on an upper surface of the micro-shutter electrode. Because the reflection preventing layer is formed on the upper surface of the micro-shutter electrode to prevent light incident thereon from being reflected to be leaked out, the black color does not dim the display, thereby increasing the contrast ratio (CR), and sharpness is not degraded when displaying colors.Type: GrantFiled: January 8, 2007Date of Patent: August 3, 2010Assignee: Samsung Electronics Co., Ltd.Inventor: Jae-Hyuk Chang