Patents by Inventor Dong Hyun Oh
Dong Hyun Oh 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: 20180024397Abstract: The present specification relates to a liquid crystal display device and a method for manufacturing the same.Type: ApplicationFiled: May 2, 2016Publication date: January 25, 2018Applicant: LG CHEM, LTD.Inventors: Ilha LEE, Ji Young HWANG, Seung Heon LEE, Dong Hyun OH, Ki-Hwan KIM, Han Min SEO, Chan Hyoung PARK
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Publication number: 20180011352Abstract: The present invention relates to a liquid crystal device, a method of manufacturing the liquid crystal device, and the use of the liquid crystal device. The liquid crystal device according to the present invention has excellent light shielding rate variability characteristics. Such a liquid crystal device can be applied to various optical modulation devices such as a smart window, a window protection film, a flexible display device, an active retarder for displaying a 3D image, or a viewing angle adjustment film.Type: ApplicationFiled: February 5, 2016Publication date: January 11, 2018Applicant: LG Chem, Ltd.Inventors: Jung Woon Kim, Sung Joon Min, Jung Sun You, Jin Hong Kim, Eun Jung Lim, Dong Hyun Oh
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Patent number: 9840668Abstract: Provided are a liquid crystal device, a composition capable of forming a liquid crystal layer, a method of manufacturing the liquid crystal device, a system for manufacturing the liquid crystal device, and a use of the liquid crystal device. The liquid crystal device is a device capable of exhibiting, for example, a normally transparent or black mode, exhibiting a high contrast ratio, being driven with a low driving voltage, and exhibiting excellent durability such as thermal stability. Such a liquid crystal device may be applied to various optical modulators such as a smart window, a window protective film, a flexible display device, an active retarder for displaying 3D images, or a viewing angle control film.Type: GrantFiled: December 16, 2013Date of Patent: December 12, 2017Assignee: LG CHEM, LTD.Inventors: Sung Joon Min, Jung Sun You, Dong Hyun Oh
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Patent number: 9841857Abstract: The present application provides a conductive pattern laminate including: a substrate having concave portions or protrusion portions on an upper surface thereof; and a conductive film provided on an upper surface of concave portions or protrusion portions of the substrate and on a portion in which no concave portions or protrusion portions are present on the upper surface of the substrate, in which the conductive film provided on the upper surface of concave portions or protrusion portions of the substrate and the conductive film provided on the portion in which no concave portions or protrusion portions are present on the upper surface of the substrate are electrically disconnected from each other, a method for manufacturing the same, and an electronic apparatus including the laminate.Type: GrantFiled: March 24, 2014Date of Patent: December 12, 2017Assignee: LG CHEM, LTD.Inventors: Ji Young Hwang, Dong Hyun Oh, Hang Suk Choi, Seung Heon Lee, Sungjoon Min
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Patent number: 9828550Abstract: Provided are a liquid crystal device, a composition capable of forming a liquid crystal layer, a method of manufacturing the liquid crystal device, a system for manufacturing the liquid crystal device, and a use of the liquid crystal device. The liquid crystal device is a device capable of exhibiting, for example, a normally white or black mode, which may exhibit a high contrast ratio and be driven with a low driving voltage, and exhibit excellent durability such as thermal stability. Such a liquid crystal device may be applied to various optical modulators such as a smart window, a window protective film, a flexible display device, an active retarder for displaying 3D images, or a viewing angle control film.Type: GrantFiled: December 16, 2013Date of Patent: November 28, 2017Assignee: LG CHEM, LTD.Inventors: Jung Sun You, Dong Hyun Oh, Sung Joon Min, Kyung Jun Kim, Dae Hee Lee, Jun Won Chang, Moon Soo Park
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Patent number: 9790429Abstract: Provided are a liquid crystal device, a composition capable of forming a liquid crystal layer, a method of manufacturing the liquid crystal device, a system for manufacturing the liquid crystal device, and a use of the liquid crystal device. The liquid crystal device is a device capable of exhibiting, for example, a normally transparent or black mode, exhibiting a high contrast ratio, being driven with a low driving voltage, and exhibiting excellent durability such as thermal stability. Such a liquid crystal device may be applied to various optical modulators such as a smart window, a window protective film, a flexible display device, an active retarder for displaying 3D images, or a viewing angle control film.Type: GrantFiled: December 16, 2013Date of Patent: October 17, 2017Assignee: LG CHEM, LTD.Inventors: Sung Joon Min, Jung Sun You, Dong Hyun Oh
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Patent number: 9758726Abstract: Provided are a liquid crystal cell and a use thereof. An exemplary liquid crystal cell can be implemented in a bistable mode switching between a haze mode and a non-haze mode even with low driving voltage. Such a liquid crystal cell can be applied to various optical modulation apparatus, such as a smart window, a window protection film, a flexible display element, an active retarder for a 3D visual display, and a viewing angle-controlling film.Type: GrantFiled: July 11, 2014Date of Patent: September 12, 2017Assignee: LG CHEM, LTD.Inventors: Eun Jung Lim, Jung Woon Kim, Dong Hyun Oh
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Publication number: 20170108740Abstract: The present application relates to a liquid crystal element and a use of the liquid crystal element. The exemplary liquid crystal element of the present application is, for example, an element capable of realizing a normally transparent mode, having a high contrast ratio, and being driven with a low driving voltage. Such a liquid crystal element may be applied in a variety of light modulators including a smart window, a window protective film, a flexible display element, an active retarder for displaying a 3D image and a viewing angle controlling film.Type: ApplicationFiled: April 6, 2015Publication date: April 20, 2017Applicant: LG Chem, Ltd.Inventors: Jin Hong Kim, Jung Woon Kim, Dong Hyun Oh, Jung Sun You
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Patent number: 9588369Abstract: The present application relates to a liquid crystal cell, a method for preparing a liquid crystal cell and a display device. An exemplary liquid crystal cell may be applied to various types of display devices so as to control a viewing angle or light transmittance of the display device.Type: GrantFiled: June 6, 2014Date of Patent: March 7, 2017Assignee: LG CHEM, LTD.Inventors: Sung Joon Min, Dong Hyun Oh, Jun Won Chang, Kyung Jun Kim, Hye Won Jeong, Moon Soo Park
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Publication number: 20160377902Abstract: Provided are a light modulation device and a use thereof. The light modulation device may apply an external signal by a composite layer having a high transmittance in a visible region, a low transmittance in an infrared region and a low sheet resistance. Such a light modulation device may be applied in various uses such as a smart window, a window protecting film, a flexible display element, an active retarder for displaying a 3D image or a viewing angle control film.Type: ApplicationFiled: March 6, 2015Publication date: December 29, 2016Applicant: LG CHEM, LTD.Inventors: Sung Joon MIN, Su Jin KIM, Doo Hoon SONG, Jin Hyong LIM, Dong Hyun OH, Ki Hwan KIM
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Publication number: 20160299366Abstract: The present application relates to a method of preparing a liquid crystal capsule, a liquid crystal capsule and the use of the liquid crystal capsule. The liquid crystal capsule prepared according to an embodiment of the present application has advantages in that transmittance and stability are improved and the degree of scattering is uniform.Type: ApplicationFiled: February 26, 2015Publication date: October 13, 2016Applicant: LG CHEM, LTD.Inventors: Dong Hyun OH, Sung Joon MIN, Jung Sun YOU, Kyung Jun KIM
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Publication number: 20160291357Abstract: The present application relates to an optical element. The exemplary optical element may have a variable transmittance by whether an external signal is applied or not. Also, since the optical element may apply the external signal by using a composite layer having a low transmittance to light in an infrared region, the optical element may block heat, and save energy. Such an optical element may be usefully employed in various optical devices, for example, a sunroof.Type: ApplicationFiled: March 9, 2015Publication date: October 6, 2016Applicant: LG CHEM, LTD.Inventors: Sung Joon MIN, Eun Jung LIM, Dong Hyun OH, Jung Woon KIM, Jung Sun YOU, Jin Hong KIM
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Publication number: 20160282982Abstract: The present application provides a conductive pattern laminate including: a substrate having concave portions or protrusion portions on an upper surface thereof; and a conductive film provided on an upper surface of concave portions or protrusion portions of the substrate and on a portion in which no concave portions or protrusion portions are present on the upper surface of the substrate, in which the conductive film provided on the upper surface of concave portions or protrusion portions of the substrate and the conductive film provided on the portion in which no concave portions or protrusion portions are present on the upper surface of the substrate are electrically disconnected from each other, a method for manufacturing the same, and an electronic apparatus including the laminate.Type: ApplicationFiled: March 24, 2014Publication date: September 29, 2016Inventors: Ji Young HWANG, Dong Hyun OH, Hang Suk CHOI, Seung Heon LEE, Sungjoon MIN
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Patent number: 9411189Abstract: A liquid crystal cell, a precursor of the liquid crystal layer, a method of manufacturing a liquid crystal cell, and use of the liquid crystal cell are provided. The liquid crystal cell may be manufactured simply in a consecutive manner using a roll-to-roll process. Also, the liquid crystal cell may be realized as a flexible device, and have an excellent contrast ratio. Such a liquid crystal cell can be applied in various applications including smart windows, window-protecting films, flexible display devices, active retarders for displaying 3D images, or viewing angle-adjusting films.Type: GrantFiled: August 31, 2012Date of Patent: August 9, 2016Assignee: LG CHEM, LTD.Inventors: Dong Hyun Oh, Kyung Jun Kim, Sung Joon Min, Jung Sun You
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Publication number: 20160115389Abstract: Provided are a liquid crystal cell and a use thereof. An exemplary liquid crystal cell can be implemented in a bistable mode switching between a haze mode and a non-haze mode even with low driving voltage. Such a liquid crystal cell can be applied to various optical modulation apparatus, such as a smart window, a window protection film, a flexible display element, an active retarder for a 3D visual display, and a viewing angle-controlling film.Type: ApplicationFiled: July 11, 2014Publication date: April 28, 2016Applicant: LG CHEM, LTD.Inventors: Eun Jung LIM, Jung Woon KIM, Dong Hyun OH
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Publication number: 20150368559Abstract: Provided are a liquid crystal device, a composition capable of forming a liquid crystal layer, a method of manufacturing the liquid crystal device, a system for manufacturing the liquid crystal device, and a use of the liquid crystal device. The liquid crystal device is a device capable of exhibiting, for example, a normally white or black mode, which may exhibit a high contrast ratio and be driven with a low driving voltage, and exhibit excellent durability such as thermal stability. Such a liquid crystal device may be applied to various optical modulators such as a smart window, a window protective film, a flexible display device, an active retarder for displaying 3D images, or a viewing angle control film.Type: ApplicationFiled: December 16, 2013Publication date: December 24, 2015Inventors: Jung Sun YOU, Dong Hyun OH, Sung Joon MIN, Kyung Jun KIM, Dae Hee LEE, Jun Won CHANG, Moon Soo PARK
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Publication number: 20150338689Abstract: Provided are a liquid crystal device, a composition capable of forming a liquid crystal layer, a method of manufacturing the liquid crystal device, a system for manufacturing the liquid crystal device, and a use of the liquid crystal device. The liquid crystal device is a device capable of exhibiting, for example, a normally white or black mode, exhibiting a high contrast ratio, driven with a low driving voltage, and exhibiting excellent durability such as thermal stability. Such a liquid crystal device may be applied to various optical modulators such as a smart window, a window protective film, a flexible display device, an active retarder for displaying 3D images, or a viewing angle control film.Type: ApplicationFiled: December 16, 2013Publication date: November 26, 2015Applicant: LG CHEM, LTD.Inventors: Sung Joon MIN, Jung Sun YOU, Dong Hyun OH
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Publication number: 20150331264Abstract: Provided are a liquid crystal device, a composition capable of forming a liquid crystal layer, a method of manufacturing the liquid crystal device, a system for manufacturing the liquid crystal device, and a use of the liquid crystal device. The liquid crystal device is a device capable of exhibiting, for example, a normally transparent or black mode, exhibiting a high contrast ratio, being driven with a low driving voltage, and exhibiting excellent durability such as thermal stability. Such a liquid crystal device may be applied to various optical modulators such as a smart window, a window protective film, a flexible display device, an active retarder for displaying 3D images, or a viewing angle control film.Type: ApplicationFiled: December 16, 2013Publication date: November 19, 2015Applicant: LG CHEM, LTD.Inventors: Sung Joon MIN, Jung Sun YOU, Dong Hyun OH
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Patent number: 9182624Abstract: The present application relates to a liquid crystal cell, a method for preparing a liquid crystal cell and a display device. An exemplary liquid crystal cell may be applied to various types of display devices so as to control a viewing angle or light transmittance of the display device.Type: GrantFiled: June 6, 2014Date of Patent: November 10, 2015Assignee: LG CHEM, LTD.Inventors: Sung Joon Min, Dong Hyun Oh, Jun Won Chang, Kyung Jun Kim, Hye Won Jeong, Moon Soo Park
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Patent number: 9133353Abstract: In a method for preparing a polyimide resin by reacting diamine and dianhydride, the polyimide resin is polymerized under the presence of a solvent having a boiling point ranging from 130° C. to 180° C. so as to be curable at a low temperature ranging from 150° C. to 250° C. Because the polyimide is curable even at a low temperature, when the polyimide resin is used as an electronic material, damage to equipment due to an otherwise high temperature process can be minimized, and in addition, the polyimide resin can be extensively used as an electronic material such as for a plastic substrate, or the like.Type: GrantFiled: July 13, 2011Date of Patent: September 15, 2015Assignee: LG CHEM, LTD.Inventors: Sang Woo Kim, Se Jin Shin, Dong Hyun Oh, Kyung Jun Kim