Patents by Inventor Gi-heon Kim
Gi-heon Kim 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: 10741777Abstract: Provided is a stretchable display including an elastic body, a light emitting unit on the elastic body, and a wiring unit on the elastic body, wherein the light emitting unit includes a first substrate unit on the elastic body, a buffer layer on the first substrate unit, and a light emitting element on the buffer layer, the wiring unit includes a second substrate unit on the elastic body, a driving element configured to control the light emitting element, a wiring configured to electrically connect the driving element and the light emitting element, and an insulation layer configured to cover the driving element and the wiring, the light emitting unit and the wiring unit have respective corrugation structures, a thickness of the light emitting unit is larger than that of the wiring unit, a modulus of elasticity of the buffer layer is larger than that of the insulation layer, and a modulus of elasticity of the elastic body is smaller than that of the insulation layer.Type: GrantFiled: November 29, 2018Date of Patent: August 11, 2020Assignee: Electronics and Telecommunications Research InstituteInventors: Chi-Sun Hwang, Seung Youl Kang, Byoung-Hwa Kwon, Gi Heon Kim, Seong Hyun Kim, Jaehyun Moon, Young Sam Park, Seongdeok Ahn, Jeong Ik Lee, Sung Haeng Cho
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Publication number: 20190361277Abstract: A light emitting apparatus and a window. The light emitting apparatus includes a liquid crystal device that includes a support substrate, a first electrode, a liquid crystal layer, and a sacrificial structure, separating the sacrificial structure from the liquid crystal layer to expose one surface of the liquid crystal layer, and a second electrode on the one surface of the liquid crystal layer.Type: ApplicationFiled: July 31, 2019Publication date: November 28, 2019Applicant: Electronics and Telecommunications Research InstituteInventors: Gi Heon KIM, Sujung Kim, Yong Hae Kim, Chi-Sun Hwang
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Patent number: 10409116Abstract: Provided are a method for manufacturing a light emitting apparatus, the light emitting apparatus, and a window. The method for manufacturing the light emitting apparatus includes preparing a liquid crystal device including a support substrate, a first electrode, a liquid crystal layer, and a sacrificial structure, separating the sacrificial structure from the liquid crystal layer to expose one surface of the liquid crystal layer, and forming a second electrode on the one surface of the liquid crystal layer.Type: GrantFiled: July 20, 2017Date of Patent: September 10, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Gi Heon Kim, Sujung Kim, Yong Hae Kim, Chi-Sun Hwang
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Publication number: 20190221761Abstract: Provided is a stretchable display including an elastic body, a light emitting unit on the elastic body, and a wiring unit on the elastic body, wherein the light emitting unit includes a first substrate unit on the elastic body, a buffer layer on the first substrate unit, and a light emitting element on the buffer layer, the wiring unit includes a second substrate unit on the elastic body, a driving element configured to control the light emitting element, a wiring configured to electrically connect the driving element and the light emitting element, and an insulation layer configured to cover the driving element and the wiring, the light emitting unit and the wiring unit have respective corrugation structures, a thickness of the light emitting unit is larger than that of the wiring unit, a modulus of elasticity of the buffer layer is larger than that of the insulation layer, and a modulus of elasticity of the elastic body is smaller than that of the insulation layer.Type: ApplicationFiled: November 29, 2018Publication date: July 18, 2019Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Chi-Sun HWANG, Seung Youl KANG, Byoung-Hwa KWON, Gi Heon KIM, Seong Hyun KIM, Jaehyun MOON, Young Sam PARK, Seongdeok AHN, JEONG IK LEE, Sung Haeng CHO
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Publication number: 20190187537Abstract: Provided is an optoelectronic element including a first substrate, a first electrode on the first substrate, a first lens pattern disposed on the first electrode and including a liquid crystal and a black dye molecule, a second lens pattern disposed on the first lens pattern, and a second electrode on the second lens pattern, wherein the black dye molecule includes about 1 to 4 azo groups and about 2 to 5 aromatic cyclic compounds.Type: ApplicationFiled: February 21, 2019Publication date: June 20, 2019Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Gi Heon KIM, Yong Hae KIM, Chi-Sun HWANG
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Publication number: 20190137799Abstract: Provided is a liquid crystal device. The liquid crystal device includes a first substrate and a second substrate facing each other, a first electrode disposed between the first substrate and the second substrate and adjacent to the first substrate, a second electrode disposed between the first substrate and the second substrate and adjacent to the second substrate, a first alignment film disposed between the first electrode and the second electrode and adjacent to the first electrode, a second alignment film disposed between the first electrode and the second electrode and adjacent to the second electrode, and a liquid crystal layer disposed between the first alignment film and the second alignment film, wherein the liquid crystal layer includes a liquid crystal portion containing liquid crystal molecules, and a hydrophobic portion containing a hydrophobic material, the liquid crystal portion and the hydrophobic portion are phase-separated from each other, and the hydrophobic portion includes fluorine.Type: ApplicationFiled: November 7, 2018Publication date: May 9, 2019Applicant: Electronics and Telecommunications Research InstituteInventors: Gi Heon KIM, Yong Hae KIM, Chi-Sun HWANG, Chi-Young HWANG
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Patent number: 10156760Abstract: A method for manufacturing a liquid crystal device includes preparing a precursor solution comprising a monomer, a blue dye, a green dye, and a red dye dissolved in the monomer, and liquid crystal molecules; and polymerizing the monomer of the precursor solution to form a liquid crystal layer. The blue dye, the green dye, and the red dye reflect light of different wavelengths from each other. A black color is available in a single pixel when, based on total amount of the blue dye, the green dye, and the red dye, the blue dye is present in an amount ranging from about 25 wt % to about 30 wt %, the green dye is present in an amount ranging from about 40 wt % to about 50 wt %, and the red dye is present in an amount ranging from about 25 wt % to about 30 wt %.Type: GrantFiled: July 13, 2017Date of Patent: December 18, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sujung Kim, Gi Heon Kim, Yong Hae Kim, Chi-Sun Hwang
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Patent number: 10073315Abstract: A display device includes a polymer layer including dichroic dyes and a liquid crystal, which is not mixed or reacted with the polymer layer, dispersed in the polymer layer. The polymer and the liquid crystal have different refractive indices from each other.Type: GrantFiled: January 26, 2016Date of Patent: September 11, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Gi Heon Kim, Yong Hae Kim, Chi-Sun Hwang
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Publication number: 20180157076Abstract: Provided are a method for manufacturing a light emitting apparatus, the light emitting apparatus, and a window. The method for manufacturing the light emitting apparatus includes preparing a liquid crystal device including a support substrate, a first electrode, a liquid crystal layer, and a sacrificial structure, separating the sacrificial structure from the liquid crystal layer to expose one surface of the liquid crystal layer, and forming a second electrode on the one surface of the liquid crystal layer.Type: ApplicationFiled: July 20, 2017Publication date: June 7, 2018Applicant: Electronics and Telecommunications Research InstituteInventors: Gi Heon KIM, Sujung KIM, Yong Hae KIM, Chi-Sun HWANG
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Publication number: 20180136536Abstract: Provided is an optoelectronic element including a first substrate, a first electrode on the first substrate, a first lens pattern disposed on the first electrode and including a liquid crystal and a black dye molecule, a second lens pattern disposed on the first lens pattern, and a second electrode on the second lens pattern, wherein the black dye molecule includes about 1 to 4 azo groups and about 2 to 5 aromatic cyclic compounds.Type: ApplicationFiled: May 4, 2017Publication date: May 17, 2018Applicant: Electronics and Telecommunications Research InstituteInventors: Gi Heon KIM, Yong Hae KIM, Chi-Sun HWANG
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Publication number: 20180136507Abstract: Provided are a liquid crystal device, a method for manufacturing a liquid crystal device, and a method for operating a liquid crystal device. According to the inventive concept, a method for manufacturing a liquid crystal device includes preparing a precursor solution including a monomer, liquid crystal molecules, a first dye, a second dye, and a third dye, and performing a polymerization process of the precursor solution to form a liquid crystal layer. The first dye, the second dye, and the third dye may reflect lights having different wavelengths from each other.Type: ApplicationFiled: July 13, 2017Publication date: May 17, 2018Applicant: Electronics and Telecommunications Research InstituteInventors: Sujung KIM, Gi Heon KIM, Yong Hae KIM, Chi-Sun HWANG
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Patent number: 9952460Abstract: Provided is a display device. The display device includes a lower display element where a substrate, a first lower electrode, a liquid crystal part, and a second lower electrode are sequentially stacked, an upper display element stacked vertical to the lower display element, where a first upper electrode, a light emitting part, a second upper electrode, and a protective part are sequentially stacked, and a middle part configured to deliver a driving signal to the lower and upper display elements, between the lower and upper display elements.Type: GrantFiled: January 29, 2016Date of Patent: April 24, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jong-Heon Yang, Jae Bon Koo, Byoung-Hwa Kwon, Gi Heon Kim, Yong Hae Kim, Hojun Ryu, Chan Woo Park, Chunwon Byun, Hyunkoo Lee, Jong Tae Lim, Kyoung Ik Cho, Seong-Mok Cho, Hye Yong Chu, Chi-Sun Hwang
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Patent number: 9753334Abstract: Provided are a display device and a method of manufacturing the same. The display device includes a first substrate, a second substrate facing the first substrate and separated from the first substrate, a plurality of liquid crystal parts disposed between the first and second substrates, and separated in a horizontal direction from each other, spacers for separating the liquid crystal parts between the first and the second substrates, and immobilization patterns disposed in each of the liquid crystal parts, and including an optically active material.Type: GrantFiled: March 8, 2016Date of Patent: September 5, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Gi Heon Kim, Hojun Ryu, Won Jae Lee, Yong Hae Kim, Chul Am Kim
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Publication number: 20170210995Abstract: A color display device includes a plurality of pixels. Each of the pixels includes a first transparent electrode and a second transparent electrode, opposing to each other, a polymer layer between the first transparent electrode and the second transparent electrode, a first coloring material dispersed in the polymer layer, liquid crystals provided in the polymer layer, and a second coloring material dispersed in the liquid crystals. The first coloring material and the second coloring material presents different colors, and each of the first coloring material and the second coloring material includes at least one of a red coloring material, a green coloring material, a blue coloring material, a yellow coloring material, a cyan coloring material, and a magenta coloring material.Type: ApplicationFiled: July 18, 2016Publication date: July 27, 2017Inventors: Gi Heon KIM, Yong Hae KIM, Chi-Sun HWANG
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Patent number: 9695362Abstract: A color display device includes a plurality of pixels. Each of the pixels includes a first transparent electrode and a second transparent electrode, opposing to each other, a polymer layer between the first transparent electrode and the second transparent electrode, a first coloring material dispersed in the polymer layer, liquid crystals provided in the polymer layer, and a second coloring material dispersed in the liquid crystals. The first coloring material and the second coloring material presents different colors, and each of the first coloring material and the second coloring material includes at least one of a red coloring material, a green coloring material, a blue coloring material, a yellow coloring material, a cyan coloring material, and a magenta coloring material.Type: GrantFiled: July 18, 2016Date of Patent: July 4, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Gi Heon Kim, Yong Hae Kim, Chi-Sun Hwang
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Patent number: 9665066Abstract: Provided are a spatial light modulator (SLM) and a method of fabricating the same. The complex spatial light modulator includes a thin film transistor (TFT) layer provided on a substrate, an amplitude type SLM and a phase type SLM electrically connected to the TFT layer, and a first polarizer provided on the phase type SLM, wherein the TFT layer includes transistors electrically connected to the amplitude type SLM and the phase type SLM, respectively, and the amplitude type SLM and the phase type SLM are commonly and electrically connected to the TFT layer and driven.Type: GrantFiled: September 30, 2014Date of Patent: May 30, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Yong Hae Kim, Chi-Sun Hwang, Gi Heon Kim, Hojun Ryu, Chunwon Byun, Himchan Oh, Myung Lae Lee, Hye Yong Chu
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Publication number: 20170139241Abstract: Provided are a display device and a method of driving the same. The display device includes a polymer layer including dichroic dyes and a liquid crystal, which is not mixed or reacted with the polymer layer, dispersed in the polymer layer. The polymer and the liquid crystal having different refractive indices from each other are used to provide a display device which is reflective and transmissible.Type: ApplicationFiled: January 26, 2016Publication date: May 18, 2017Inventors: Gi Heon KIM, Yong Hae KIM, Chi-Sun HWANG
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Patent number: 9535283Abstract: Provided is a display device and a method of manufacturing the same. The display device includes a reflective display part including a first cathode electrode and a first anode electrode and a liquid crystal layer, a light emitting display part including a second cathode electrode and a second anode electrode and a light emission film, and a thin film transistor part being electrically connected to the first and second anode electrodes. The light emitting display part further includes a bank disposed on one side of the second anode electrode between the second anode electrode and the light emission film.Type: GrantFiled: May 23, 2014Date of Patent: January 3, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Yong Hae Kim, Gi Heon Kim, Hojun Ryu, Chi-Sun Hwang, Jong-Heon Yang, Sang Chul Lim, Jae Bon Koo, Jonghee Lee, Jeong Ik Lee
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Publication number: 20160246116Abstract: Provided is a display device. The display device includes a lower display element where a substrate, a first lower electrode, a liquid crystal part, and a second lower electrode are sequentially stacked, an upper display element stacked vertical to the lower display element, where a first upper electrode, a light emitting part, a second upper electrode, and a protective part are sequentially stacked, and a middle part configured to deliver a driving signal to the lower and upper display elements, between the lower and upper display elements.Type: ApplicationFiled: January 29, 2016Publication date: August 25, 2016Inventors: Jong-Heon YANG, Jae Bon KOO, Byoung-Hwa KWON, Gi Heon KIM, Yong Hae KIM, Hojun RYU, Chan Woo PARK, Chunwon BYUN, Hyunkoo LEE, Jong Tae LIM, Kyoung Ik CHO, Seong-Mok CHO, Hye Yong CHU, Chi-Sun HWANG
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Publication number: 20160209809Abstract: Provided is a holographic display device. The holographic display device includes a light source unit configured to emit a light, and a spatial light modulator (SLM) configured to modulate at least one of a phase and amplitude of the light emitted from the light source unit to output a hologram image, and including a plurality of pixel groups that are arranged in a first direction, wherein each of the plurality of pixel groups includes: first pixels arranged in a matrix x1×y1 and providing an image having a first wavelength, and second pixels adjacent to the first pixels in the first direction, arranged in a matrix x2×y2, and providing an image having a second wavelength that is different from the first wavelength.Type: ApplicationFiled: January 12, 2016Publication date: July 21, 2016Inventors: Yong Hae Kim, Chi-Sun Hwang, Gi Heon Kim, Himchan Oh, Hojun Ryu, Chunwon Byun, Myung Lae Lee, Jae Won Lee, Jae-Eun Pi