Patents by Inventor Chong Hyun Park
Chong Hyun Park 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: 11923610Abstract: In various embodiments, an antenna array may comprise a dielectric; a first patch antenna disposed on a first region of the dielectric; a second patch antenna disposed on a second region of the dielectric; and a ground layer including a first sub-ground layer in contact with a lower portion of the first region of the dielectric, a third sub-ground layer in contact with a lower portion of the second region of the dielectric, and a second sub-ground layer spaced apart from a lower portion between the first region and the second region of the dielectric.Type: GrantFiled: May 24, 2017Date of Patent: March 5, 2024Assignees: Samsung Electronics Co., Ltd., HONGIK UNIVERSITY INDUSTRY-ACADEMIA COOPERATION FOUNDATIONInventors: Jae-Hyun Park, Jeong-Hae Lee, Min-Seo Park, Young-Ho Ryu, Sung-Bum Park, Kwi-Seob Um, Chong-Min Lee, Chang-Hyun Lee
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Patent number: 9105849Abstract: A deposition mask assembly having a plurality of deposition masks consecutively arranged in parallel is discussed. The deposition mask has a frame coupled with the plurality of deposition masks, wherein cross section of one end of each deposition mask having first and second sectors which are asymmetric and meet each other at a first contact point, wherein the first sector has a first radius and a first center angle, and connected to an upper surface of the deposition mask, the second sector has a second radius different from the first radius and a second center angle different from the first center angle, and connected to a lower surface of the deposition mask, and the contact point is asymmetric, pointed and protruded horn-shaped or arrow-shaped.Type: GrantFiled: June 4, 2014Date of Patent: August 11, 2015Assignee: LG DISPLAY CO., LTD.Inventors: Chong-Hyun Park, Tae-Hyung Kim, Il-Hyun Lee
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Patent number: 9004002Abstract: A mask assembly is disclosed to improve organic material deposition efficiency including: a plurality of deposition masks, at least one of opposite ends of each of the plurality of deposition masks is formed to have a plurality of projections, which form at least one boundary aperture region at a boundary of adjacent two deposition masks.Type: GrantFiled: December 27, 2010Date of Patent: April 14, 2015Assignee: LG Display Co., Ltd.Inventors: Chong-Hyun Park, Tae-Hyung Kim, Il-Hyun Lee
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Publication number: 20140283742Abstract: A deposition mask assembly having a plurality of deposition masks consecutively arranged in parallel is discussed. The deposition mask has a frame coupled with the plurality of deposition masks, wherein cross section of one end of each deposition mask having first and second sectors which are asymmetric and meet each other at a first contact point, wherein the first sector has a first radius and a first center angle, and connected to an upper surface of the deposition mask, the second sector has a second radius different from the first radius and a second center angle different from the first center angle, and connected to a lower surface of the deposition mask, and the contact point is asymmetric, pointed and protruded horn-shaped or arrow-shaped.Type: ApplicationFiled: June 4, 2014Publication date: September 25, 2014Inventors: Chong-Hyun PARK, Tae-Hyung KIM, Il-Hyun LEE
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Patent number: 8776718Abstract: A deposition mask and mask assembly having the same capable of improving deposition efficiency is discussed. Both ends of the deposition mask have a pointed cross section such that at least a part of the neighboring deposition masks overlap each other at a boundary therebetween when deposition masks are consecutively arranged in parallel.Type: GrantFiled: December 28, 2010Date of Patent: July 15, 2014Assignee: LG Display Co., Ltd.Inventors: Chong-Hyun Park, Tae-Hyung Kim, Il-Hyun Lee
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Patent number: 8328941Abstract: The apparatus for fabricating an organic electroluminescent device which can distribute stress applied to the mask uniformly to form precise and reliable light emitting layers is disclosed. The apparatus for fabricating an electroluminescent device according to the present invention comprises a plurality of grippers disposed in a zigzag state at a periphery of a mask for clamping the mask, a plurality of jaws formed on each gripper and contacting with the mask, and power supplying units for supplying power to the grippers to stretch the mask. Each of the grippers is divided into a connecting section connected to the power supplying unit and a head section integrated into the connecting section, and a plurality of jaws are formed on the head section of each gripper, and odd (or even)-numbered grippers disposed at each side of the mask are disposed in a more forward position than even (or odd)-numbered grippers.Type: GrantFiled: October 4, 2010Date of Patent: December 11, 2012Assignee: LG Display Co., Ltd.Inventors: Chong Hyun Park, Yoon Heung Tak
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Publication number: 20110185966Abstract: A mask assembly capable of improving organic material deposition efficiency is disclosed. The mask assembly comprises: a plurality of deposition masks; a frame coupled to the plurality of deposition masks arranged continuously; and a bonding portion for joining adjacent deposition masks.Type: ApplicationFiled: December 29, 2010Publication date: August 4, 2011Inventors: Il Hyun LEE, Tae Hyung Kim, Chong Hyun Park
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Publication number: 20110185965Abstract: A mask assembly is disclosed to improve organic material deposition efficiency including: a plurality of deposition masks, at least one of opposite ends of each of the plurality of deposition masks is formed to have a plurality of projections, which form at least one boundary aperture region at a boundary of adjacent two deposition masks.Type: ApplicationFiled: December 27, 2010Publication date: August 4, 2011Inventors: Chong-Hyun PARK, Tae-Hyun KIM, Il-Hyun LEE
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Publication number: 20110179996Abstract: A deposition mask and mask assembly having the same capable of improving deposition effieiency is discussed. Both ends of the deposition mask have a pointed cross section such that at least a part of the neighboring deposition masks overlap each other at a boundary therebetween when deposition masks are consecutively arranged in parallel.Type: ApplicationFiled: December 28, 2010Publication date: July 28, 2011Inventors: Chong-Hyun Park, Tae-Hyung Kim, Il-Hyun Lee
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Publication number: 20110020488Abstract: The apparatus for fabricating an organic electroluminescent device which can distribute stress applied to the mask uniformly to form precise and reliable light emitting layers is disclosed. The apparatus for fabricating an electroluminescent device according to the present invention comprises a plurality of grippers disposed in a zigzag state at a periphery of a mask for clamping the mask, a plurality of jaws formed on each gripper and contacting with the mask, and power supplying units for supplying power to the grippers to stretch the mask. Each of the grippers is divided into a connecting section connected to the power supplying unit and a head section integrated into the connecting section, and a plurality of jaws are formed on the head section of each gripper, and odd (or even)-numbered grippers disposed at each side of the mask are disposed in a more forward position than even (or odd)-numbered grippers.Type: ApplicationFiled: October 4, 2010Publication date: January 27, 2011Inventors: Chong Hyun Park, Yoon Heung Tak
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Patent number: 7851994Abstract: An organic electro-luminescence display device and a fabricating method thereof for preventing deterioration of light-emission efficiency and picture quality are provided. In the organic electro-luminescence display device, an organic electro-luminescence array has first and second electrodes provided on a substrate with an organic light-emitting layer therebetween and a barrier rib parallel to any one of the first and second electrodes. A dummy barrier rib is connected to each of the barrier ribs and provided in such a manner to enclose the organic electro-luminescence array along with the barrier rib.Type: GrantFiled: June 9, 2009Date of Patent: December 14, 2010Assignee: LG Electronics Inc.Inventor: Chong Hyun Park
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Patent number: 7824823Abstract: This invention relates to a mask, a method of fabricating the same, and a method of fabricating organic electro-luminescence device using the same that is capable of minimizing a difference of a rigidity coefficient value of both an open part and a blocking part. The mask includes: an open part formed in a hole type to pass an organic material for forming a first organic layer on a substrate; and a blocking part having a plurality of grooves formed at other areas except for the open part.Type: GrantFiled: February 2, 2005Date of Patent: November 2, 2010Assignee: LG Display Co., Ltd.Inventors: Il Ho Lee, Chong Hyun Park, Hyo Dae Bae
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Patent number: 7806982Abstract: The apparatus for fabricating an organic electroluminescent device which can distribute stress applied to the mask uniformly to form precise and reliable light emitting layers is disclosed. The apparatus for fabricating an electroluminescent device according to the present invention comprises a plurality of grippers disposed in a zigzag state at a periphery of a mask for clamping the mask, a plurality of jaws formed on each gripper and contacting with the mask, and power supplying units for supplying power to the grippers to stretch the mask. Each of the grippers is divided into a connecting section connected to the power supplying unit and a head section integrated into the connecting section, and a plurality of jaws are formed on the head section of each gripper, and odd (or even)-numbered grippers disposed at each side of the mask are disposed in a more forward position than even (or odd)-numbered grippers.Type: GrantFiled: March 20, 2006Date of Patent: October 5, 2010Assignee: LG Display Co., Ltd.Inventors: Chong Hyun Park, Yoon Heung Tak
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Patent number: 7714499Abstract: An organic electro-luminescence device and a fabricating method thereof wherein an organic light-emitting layer can be provided at an accurate location to prevent a deterioration of picture quality. In the organic electro-luminescence device, a first barrier rib is provided between adjacent organic electro-luminescence cells along a first direction. A second barrier rib is provided between said adjacent organic electro-luminescence cells along a second direction and is positioned between the first barrier ribs.Type: GrantFiled: March 18, 2005Date of Patent: May 11, 2010Assignee: LG Electronics Inc.Inventor: Chong Hyun Park
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Publication number: 20090243480Abstract: An organic electro-luminescence display device and a fabricating method thereof for preventing deterioration of light-emission efficiency and picture quality are provided. In the organic electro-luminescence display device, an organic electro-luminescence array has first and second electrodes provided on a substrate with an organic light-emitting layer therebetween and a barrier rib parallel to any one of the first and second electrodes. A dummy barrier rib is connected to each of the barrier ribs and provided in such a manner to enclose the organic electro-luminescence array along with the barrier rib.Type: ApplicationFiled: June 9, 2009Publication date: October 1, 2009Inventor: Chong Hyun PARK
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Patent number: 7560861Abstract: An organic electro-luminescence display device and a fabricating method thereof for preventing deterioration of light-emission efficiency and picture quality are provided. In the organic electro-luminescence display device, an organic electro-luminescence array has first and second electrodes provided on a substrate with an organic light-emitting layer therebetween and a barrier rib parallel to one of the first and second electrodes. A dummy barrier rib is connected to each of the barrier ribs and provided in such a manner to surround the organic electro-luminescence array along with the barrier rib.Type: GrantFiled: May 2, 2005Date of Patent: July 14, 2009Assignee: LG Electronics Inc.Inventor: Chong Hyun Park
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Publication number: 20080057850Abstract: A mask for compensating transformation of grills included in each of a plurality of grill sections is provided. The mask includes a plurality of grill sections in each of which at least one grill is formed. Some or all of the at least one grill formed in a first grill section are inclined. The first grill section is one of outermost grill sections of the plurality of grill sections. In the mask, the grills deformed by a stretching force may have the same shape as normal grills to which the stretching force is not applied during a stretching process. Accordingly, in the process of evaporating an organic layer, the layer may be accurately evaporated on desired portions of a substrate.Type: ApplicationFiled: December 13, 2006Publication date: March 6, 2008Inventor: Chong Hyun Park
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Patent number: 7291975Abstract: This invention relates to a mask for an organic electro-luminescence device and a method of fabricating the same that is capable of forming an organic layer having a special color without a damage of an organic layer formed on a substrate. The mask for the organic electro-luminescence device includes: an open part formed in a hole type to pass an organic material for forming a first organic layer on a substrate; and a blocking part having a groove on a surface facing to at least one second organic layer formed on the substrate, wherein the groove has a width corresponding to a width of the second organic layer.Type: GrantFiled: February 2, 2005Date of Patent: November 6, 2007Assignee: LG Electronics Inc.Inventors: Jae Young Yang, Hong Seok Choi, Chong Hyun Park
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Publication number: 20050242719Abstract: An organic electro-luminescence display device and a fabricating method thereof for preventing a deterioration of light-emission efficiency and picture quality are disclosed. In the organic electro-luminescence display device, an organic electro-luminescence array has first and second electrodes provided on a substrate with having an organic light-emitting layer therebetween and a barrier rib parallel to any one of the first and second electrodes. A dummy barrier rib is connected to each of the barrier ribs and provided in such a manner to enclose the organic electro-luminescence array along with the barrier rib.Type: ApplicationFiled: May 2, 2005Publication date: November 3, 2005Inventor: Chong-Hyun Park