Patents by Inventor Ji-Heum Uh
Ji-Heum Uh 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: 8113401Abstract: An apparatus for cutting liquid crystal display panels is disclosed in the present invention. The apparatus includes at least one table receiving bonded mother substrates having a plurality of unit liquid crystal display panels, at least one cutting wheel forming a scribing line on a surface of the bonded mother substrates, and a suction unit coupled to the at least one cutting wheel and sucking in glass debris on the surface of the bonded mother substrates.Type: GrantFiled: June 24, 2010Date of Patent: February 14, 2012Assignee: LG Display Co., Ltd.Inventors: Hun-Jun Choo, Ji-Heum Uh, Sang-Sun Shin, Hwa-Seob Shim, Jong-Go Lim
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Publication number: 20100258605Abstract: An apparatus for cutting liquid crystal display panels is disclosed in the present invention. The apparatus includes at least one table receiving bonded mother substrates having a plurality of unit liquid crystal display panels, at least one cutting wheel forming a scribing line on a surface of the bonded mother substrates, and a suction unit coupled to the at least one cutting wheel and sucking in glass debris on the surface of the bonded mother substrates.Type: ApplicationFiled: June 24, 2010Publication date: October 14, 2010Inventors: Hun-Jun CHOO, Ji-Heum Uh, Sang-Sun Shin, Hwa-Seob Shim, Jong-Go Lim
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Patent number: 7710534Abstract: Disclosed is a system for fabricating a liquid crystal display using liquid crystal dropping and a method of fabricating a liquid crystal display using the same. The present invention includes a liquid crystal forming line dropping liquid crystals on the first substrate, a sealant forming line forming the sealant on the second substrate, and a bonding and hardening line bonding the two substrates to each other and hardening the sealant, printing a sealant, bonding the substrates each other, and hardening the sealant and an inspection process line of cutting the bonded substrates into panel units and grinding and inspecting the unit panels.Type: GrantFiled: May 31, 2007Date of Patent: May 4, 2010Assignee: LG Display Co., Ltd.Inventors: Yong Sang Byun, Moo Yeol Park, Sung Su Jung, Sung Chun Kang, Jong Woo Kim, Young Hun Ha, Sang Seok Lee, Sang Ho Park, Hun Jun Choo, Hyug Jin Kweon, Kyung Su Chae, Hae Joon Son, Sang Sun Shin, Jong Go Lim, Wan Soo Kim, Young Hun Jeung, Joung Ho Ryu, Ji Heum Uh, Im Su Lee
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Publication number: 20080170197Abstract: Disclosed is a system for fabricating a liquid crystal display using liquid crystal dropping and a method of fabricating a liquid crystal display using the same. The present invention includes a liquid crystal forming line dropping liquid crystals on the first substrate, a sealant forming line forming the sealant on the second substrate, and a bonding and hardening line bonding the two substrates to each other and hardening the sealant, printing a sealant, bonding the substrates each other, and hardening the sealant and an inspection process line of cutting the bonded substrates into panel units and grinding and inspecting the unit panels.Type: ApplicationFiled: May 31, 2007Publication date: July 17, 2008Applicant: LG.PHILIPS LCD CO., LTD.Inventors: Yong Sang Byun, Moo Yeol Park, Sung Su Jung, Sung Chun Kang, Jong Woo Kim, Young Hun Ha, Sang Seok Lee, Sang Ho Park, Hun Jun Choo, Hyug Jin Kweon, Kyung Su Chae, Hae Joon Son, Sang Sun Shin, Jong Go Lim, Wan Soo Kim, Young Hun Jeung, Joung Ho Ryu, Ji Heum Uh, Im Su Lee
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Patent number: 7365824Abstract: A system for fabricating a liquid crystal display using liquid crystal dropping and a method of fabricating a liquid crystal display using the same includes a liquid crystal forming line dropping liquid crystals on the first substrate, a sealant forming line forming the sealant on the second substrate, and a bonding and hardening line bonding the two substrates to each other and hardening the sealant, printing a sealant, bonding the substrates each other, and hardening the sealant and an inspection process line of cutting the bonded substrates into panel units and grinding and inspecting the unit panels. The present invention includes the processes of dropping LC on a first substrate using a dispenser, forming a main UV hardening sealant on a second substrate, bonding the first and second substrates to each other in a vacuum state, UV hardening the main UV hardening sealant, cutting the bonded substrates into cell units, grinding the cut substrates, and finally inspecting the grinded substrates.Type: GrantFiled: December 3, 2004Date of Patent: April 29, 2008Assignee: LG.Philips LCD Co., Ltd.Inventors: Yong Sang Byun, Moo Yeol Park, Sung Su Jung, Sung Chun Kang, Jong Woo Kim, Young Hun Ha, Sang Seok Lee, Sang Ho Park, Hun Jun Choo, Hyug Jin Kweon, Kyung Su Chae, Hae Joon Son, Sang Sun Shin, Jong Go Lim, Wan Soo Kim, Young Hun Jeung, Joung Ho Ryu, Ji Heum Uh, Im Su Lee
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Patent number: 7365560Abstract: An apparatus and a method testing liquid crystal display panel which are able to test whether or not burr remains on longer sides and on shorter sides of a unit liquid crystal display panel using first to fourth testing bars in a touch method, and able to measure a distance between the longer sides and a distance between the shorter sides of the unit liquid crystal display panel.Type: GrantFiled: December 10, 2004Date of Patent: April 29, 2008Assignee: LG. Philips LCD Co., Ltd.Inventors: Ji-Heum Uh, Sang-Sun Shin
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Patent number: 7329169Abstract: An apparatus and method for fabricating a liquid crystal display panel are disclosed. In case of the single mode that liquid crystal display panels are fabricated with the same size on a large glass substrate, defective unit liquid crystal display panels are kept and discarded not to proceed with a follow-up process. Thus, a material waste is restrained and a yield can be improved. Meanwhile, in case of the multi-mode that liquid crystal display panels are fabricated with difference sizes on a large glass substrate, sub-models are kept, and then after completing the process for the main models, a follow-up process if performed on the sub-models. Thus use efficiency of the glass substrate can be maximized to improve a productivity and a unit cost of the product can be reduced.Type: GrantFiled: November 16, 2004Date of Patent: February 12, 2008Assignee: LG.Philips LCD Co., Ltd.Inventors: Ji-Heum Uh, Sang-Son Shin
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Patent number: 7314403Abstract: An apparatus and method for fabricating a liquid crystal display panel are disclosed. In case of the single mode that liquid crystal display panels are fabricated with the same size on a large glass substrate, unit liquid crystal display panels are kept and discarded not to proceed with a follow-up process. Thus, a material waste is restrained and a yield can be improved. Meanwhile, in case of the multi-mode that liquid crystal display panels are fabricated with difference sizes on a large glass substrate, sub-models are kept, and then after completing the process for the main models, a follow-up process if performed on the sub-models. Thus, use efficiency of the glass substrate can be maximized to improve a productivity and a unit cost of the product can be reduced.Type: GrantFiled: December 18, 2006Date of Patent: January 1, 2008Assignee: LG.Philips LCD Co., Ltd.Inventors: Ji-Heum Uh, Sang-Sun Shin
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Patent number: 7294999Abstract: An apparatus for automatically displaying a grade of a liquid crystal display device and operating method thereof, includes a grade determining unit of a liquid crystal display panel; a grade inputting unit for inputting the grade of the liquid crystal display panel whose grade has been determined in the grade determining unit; a grade discriminating unit for transferring the grade of a corresponding liquid crystal display panel based upon receiving data input to the grade inputting unit; a storing unit having a grade displaying unit for classifying the graded liquid crystal display panels according to grades and storing the grades; and a robot driving unit for transferring the liquid crystal display panel to the storing unit according to instructions from the grade discriminating unit.Type: GrantFiled: December 29, 2004Date of Patent: November 13, 2007Assignee: LG.Philips LCD Co., Ltd.Inventors: Hun-Jun Choo, Ji-Heum Uh, Hye-Sook Kang, Cheol-Han Kim, Seong-Chul Yeo
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Patent number: 7225917Abstract: A conveyor system is disclosed, having a width adjustment unit capable of adjusting a width according to the size of goods to transfer semiprocessed goods in the process line, which includes a transfer unit for transferring goods; conveyor plates provided at both sides of the transfer unit, and guiding the goods by supporting both sides of the goods; and the width adjustment unit including a wire connected with the conveyor plates, a driving pulley operating the wire, and a driven connected with the wire.Type: GrantFiled: September 28, 2004Date of Patent: June 5, 2007Assignee: LG.Philips LCD Co., Ltd.Inventors: Ji Heum Uh, Kyung Su Chae, Jeong Joon Lee, Hyun Ho Song, Hong Seok Lee
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Publication number: 20070099544Abstract: An apparatus and method for fabricating a liquid crystal display panel are disclosed. In case of the single mode that liquid crystal display panels are fabricated with the same size on a large glass substrate, unit liquid crystal display panels are kept and discarded not to proceed with a follow-up process. Thus, a material waste is restrained and a yield can be improved. Meanwhile, in case of the multi-mode that liquid crystal display panels are fabricated with difference sizes on a large glass substrate, sub-models are kept, and then after completing the process for the main models, a follow-up process if performed on the sub-models. Thus, use efficiency of the glass substrate can be maximized to improve a productivity and a unit cost of the product can be reduced.Type: ApplicationFiled: December 18, 2006Publication date: May 3, 2007Inventors: Ji-Heum Uh, Sang-Sun Shin
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Patent number: 7163445Abstract: An apparatus and method for fabricating a liquid crystal display panel are disclosed. In case of the single mode that liquid crystal display panels are fabricated with the same size on a large glass substrate, defective unit liquid crystal display panels are kept and discarded not to proceed with a follow-up process. Thus, a material waste is restrained and a yield can be improved. Meanwhile, in case of the multi-mode that liquid crystal display panels are fabricated with difference sizes on a large glass substrate, sub-models are kept, and then after completing the process for the main models, a follow-up process if performed on the sub-models. Thus, use efficiency of the glass substrate can be maximized to improve a productivity and a unit cost of the product can be reduced.Type: GrantFiled: October 18, 2005Date of Patent: January 16, 2007Assignee: LG.Philips LCD Co., Ltd.Inventors: Ji-Heum Uh, Sang-Sun Shin
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Patent number: 7143493Abstract: A processing line for liquid crystal display fabrication. The process line reduces unnecessary processing steps by removing known defective (NG) individual liquid crystal panels before subsequent processing, with the knowledge about defects depending on stored information.Type: GrantFiled: December 6, 2004Date of Patent: December 5, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Ji Heum Uh, Kyung Su Chae
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Patent number: 7048614Abstract: An apparatus and method for fabricating a liquid crystal display panel are disclosed. In case of the single mode that liquid crystal display panels are fabricated with the same size on a large glass substrate, defective unit liquid crystal display panels are kept and discarded not to proceed with a follow-up process. Thus, a material waste is restrained and a yield can be improved. Meanwhile, in case of the multi-mode that liquid crystal display panels are fabricated with difference sizes on a large glass substrate, sub-models are kept, and then after completing the process for the main models, a follow-up process if performed on the sub-models. Thus, use efficiency of the glass substrate can be maximized to improve a productivity and a unit cost of the product can be reduced.Type: GrantFiled: October 1, 2002Date of Patent: May 23, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Ji-Heum Uh, Sang-Sun Shin
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Publication number: 20060040594Abstract: An apparatus and method for fabricating a liquid crystal display panel are disclosed. In case of the single mode that liquid crystal display panels are fabricated with the same size on a large glass substrate, defective unit liquid crystal display panels are kept and discarded not to proceed with a follow-up process. Thus, a material waste is restrained and a yield can be improved. Meanwhile, in case of the multi-mode that liquid crystal display panels are fabricated with difference sizes on a large glass substrate, sub-models are kept, and then after completing the process for the main models, a follow-up process if performed on the sub-models. Thus, use efficiency of the glass substrate can be maximized to improve a productivity and a unit cost of the product can be reduced.Type: ApplicationFiled: October 18, 2005Publication date: February 23, 2006Inventors: Ji-Heum Uh, Sang-Sun Shin
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Publication number: 20050162183Abstract: An apparatus for automatically displaying a grade of a liquid crystal display device and operating method thereof, includes a grade determining unit of a liquid crystal display panel; a grade inputting unit for inputting the grade of the liquid crystal display panel whose grade has been determined in the grade determining unit; a grade discriminating unit for transferring the grade of a corresponding liquid crystal display panel based upon receiving data input to the grade inputting unit; a storing unit having a grade displaying unit for classifying the graded liquid crystal display panels according to grades and storing the grades; and a robot driving unit for transferring the liquid crystal display panel to the storing unit according to instructions from the grade discriminating unit.Type: ApplicationFiled: December 29, 2004Publication date: July 28, 2005Inventors: Hun-Jun Choo, Ji-Heum Uh, Hye-Sook Kang, Cheol-Han Kim, Seong-Chul Yeo
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Patent number: 6892437Abstract: A processing line for liquid crystal display fabrication. The process line reduces unnecessary processing steps by removing known defective (NG) individual liquid crystal panels before subsequent processing, with the knowledge about defects depending on stored information.Type: GrantFiled: June 28, 2002Date of Patent: May 17, 2005Assignee: LG. Philips LCD Co., Ltd.Inventors: Ji Heum Uh, Kyung Su Chae
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Publication number: 20050099204Abstract: An apparatus and a method testing liquid crystal display panel which are able to test whether or not burr remains on longer sides and on shorter sides of a unit liquid crystal display panel using first to fourth testing bars in a touch method, and able to measure a distance between the longer sides and a distance between the shorter sides of the unit liquid crystal display panel.Type: ApplicationFiled: December 10, 2004Publication date: May 12, 2005Inventors: Ji-Heum Uh, Sang-Sun Shin
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Publication number: 20050090186Abstract: An apparatus and method for fabricating a liquid crystal display panel are disclosed. In case of the single mode that liquid crystal display panels are fabricated with the same size on a large glass substrate, defective unit liquid crystal display panels are kept and discarded not to proceed with a follow-up process. Thus, a material waste is restrained and a yield can be improved. Meanwhile, in case of the multi-mode that liquid crystal display panels are fabricated with difference sizes on a large glass substrate, sub-models are kept, and then after completing the process for the main models, a follow-up process if performed on the sub-models. Thus use efficiency of the glass substrate can be maximized to improve a productivity and a unit cost of the product can be reduced.Type: ApplicationFiled: November 16, 2004Publication date: April 28, 2005Inventors: Ji-Heum Uh, Sang-Son Shin
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Patent number: 6850088Abstract: An apparatus and a method testing liquid crystal display panel which are able to test whether or not burr remains on longer sides and on shorter sides of a unit liquid crystal display panel using first to fourth testing bars in a touch method, and able to measure a distance between the longer sides and a distance between the shorter sides of the unit liquid crystal display panel.Type: GrantFiled: March 2, 2004Date of Patent: February 1, 2005Assignee: LG.Philips LCD Co., Ltd.Inventors: Ji-Heum Uh, Sang-Sun Shin