Patents by Inventor Yong Hae Kim
Yong Hae 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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Publication number: 20210173242Abstract: 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: February 11, 2021Publication date: June 10, 2021Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Gi Heon KIM, Sujung KIM, Yong Hae KIM, Chi-Sun HWANG
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Publication number: 20210124305Abstract: Provided are a hologram display device and a method of manufacturing the hologram display device. The hologram display device includes a light source unit that emits light, a spatial light modulator that modulates the light emitted from the light source unit, and a random pinhole panel. The random pinhole panel includes a plurality of pinholes of a random position or a random size and is arranged in line with an output part of the spatial light modulator. In the hologram display device and the method of manufacturing the hologram display device, a position and size of a random pinhole on the random pinhole are not limited to inside each pixel of the spatial light modulator.Type: ApplicationFiled: August 7, 2020Publication date: April 29, 2021Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Yong Hae KIM, Seong-Mok CHO, Chi-Sun HWANG, Ji Hun CHOI, Gi Heon KIM, Jong-Heon YANG, Sang Hoon CHEON, Kyunghee CHOI, Jae-Eun PI
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Publication number: 20210096434Abstract: Provided is a display device. The display device includes first to second gate lines provided on a substrate having first and second pixel areas and extending in a first direction, first to third data lines extending in a second direction perpendicular to the first direction and intersecting the first to second gate lines, and a first reflective electrode provided inside the first pixel area and a second reflective electrode provided inside the second pixel area, from a planar viewpoint, wherein the first to second gate lines and the first to third data lines define the first pixel area and the second pixel area, wherein the first to second gate lines are spaced apart from each other in the second direction, wherein the first to third data lines are spaced apart from each other in the first direction.Type: ApplicationFiled: August 7, 2020Publication date: April 1, 2021Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ji Hun CHOI, Yong Hae KIM, Seong-Mok CHO, Chi-Sun HWANG
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Patent number: 10948784Abstract: 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: GrantFiled: July 31, 2019Date of Patent: March 16, 2021Assignee: Electronics and Telecommunications Research InstituteInventors: Gi Heon Kim, Sujung Kim, Yong Hae Kim, Chi-Sun Hwang
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Patent number: 10935846Abstract: A 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: GrantFiled: November 7, 2018Date of Patent: March 2, 2021Assignee: Electronics and Telecommunications Research InstituteInventors: Gi Heon Kim, Yong Hae Kim, Chi-Sun Hwang, Chi-Young Hwang
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Publication number: 20210034013Abstract: A spatial light modulator according to the inventive concept includes a light modulation layer including a plurality of pixels arranged on a plane perpendicular to a first direction, a first lens array including first lenses corresponding one-to-one with the pixels, a second lens array including second lenses corresponding one-to-one with the first lenses, and a spacer layer between the first lens array and the second lens array. Each of the first lenses has a first central axis extending in the first direction and the first central axes of the first lenses meet at different positions for each of the pixels.Type: ApplicationFiled: April 13, 2020Publication date: February 4, 2021Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seong-Mok CHO, Yong Hae KIM, Sang Hoon CHEON, Kyunghee CHOI, Chi-Sun HWANG
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Publication number: 20200379313Abstract: 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: August 19, 2020Publication date: December 3, 2020Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Gi Heon KIM, Yong Hae KIM, Chi-Sun HWANG
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Patent number: 10782588Abstract: 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: GrantFiled: February 21, 2019Date of Patent: September 22, 2020Assignee: Electronics and Telecommunications Research InstituteInventors: Gi Heon Kim, Yong Hae Kim, Chi-Sun Hwang
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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: 10481461Abstract: Provided is a reversible electrochemical mirror including a first substrate and a second substrate, which face each other, a first transparent electrode disposed on the first substrate and facing the second substrate, a second transparent electrode disposed on the second substrate and facing the first transparent electrode, an electrolyte solution interposed between the first transparent electrode and the second transparent electrode, and a counter electrode material layer disposed on the second transparent electrode and contacting the electrolyte solution.Type: GrantFiled: April 4, 2018Date of Patent: November 19, 2019Assignee: Electronics and Telecommunications Research InstituteInventors: Seong-Mok Cho, Sujung Kim, Tae-Youb Kim, Juhee Song, Chil Seong Ah, Yong Hae Kim, Joo Yeon Kim, Hojun Ryu, Jeong Ik Lee, Sang Hoon Cheon, 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: 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: 10281792Abstract: An electrochromic mirror includes a first electrode structure, a second electrode structure provided on the first electrode structure, and an electrolyte provided between the first and second electrode structures. Here, the first electrode structure further includes a metal layer, a graphene layer disposed on the metal layer, and an interface part disposed between the metal layer and the graphene layer. The interface part includes a micro/nano-porous polymer material.Type: GrantFiled: January 8, 2018Date of Patent: May 7, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Joo Yeon Kim, Jeong Ik Lee, Sang Hoon Cheon, Nam Sung Cho, Seong-Mok Cho, Yong Hae Kim, Tae-Youb Kim, Hojun Ryu, Chil Seong Ah, Chi-Sun Hwang
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Patent number: 10261382Abstract: Provided is a light modulating device including a light modulating unit provided on a substrate, a driving unit electrically connected to the light modulating unit and configured to drive the light modulating unit, and a cover disposed on the light modulating unit and configured to seal the light modulating unit, wherein the light modulating unit comprises an electrochromic device.Type: GrantFiled: November 16, 2016Date of Patent: April 16, 2019Assignee: Electronics and Telecommunications Research InstitInventors: Tae-Youb Kim, Yong Hae Kim, Seong-Mok Cho, Jong-Heon Yang, Jae-Eun Pi
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Publication number: 20190025665Abstract: Provided is a reversible electrochemical mirror including a first substrate and a second substrate, which face each other, a first transparent electrode disposed on the first substrate and facing the second substrate, a second transparent electrode disposed on the second substrate and facing the first transparent electrode, an electrolyte solution interposed between the first transparent electrode and the second transparent electrode, and a counter electrode material layer disposed on the second transparent electrode and contacting the electrolyte solution.Type: ApplicationFiled: April 4, 2018Publication date: January 24, 2019Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seong-Mok CHO, Sujung KIM, Tae-Youb KIM, Juhee SONG, Chil Seong AH, Yong Hae KIM, Joo Yeon KIM, Hojun RYU, Jeong Ik LEE, Sang Hoon CHEON, Chi-Sun 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: 20180231856Abstract: An electrochromic mirror includes a first electrode structure, a second electrode structure provided on the first electrode structure, and an electrolyte provided between the first and second electrode structures. Here, the first electrode structure further includes a metal layer, a graphene layer disposed on the metal layer, and an interface part disposed between the metal layer and the graphene layer. The interface part includes a micro/nano-porous polymer material.Type: ApplicationFiled: January 8, 2018Publication date: August 16, 2018Applicant: Electronics and Telecommunications Research InstituteInventors: Joo Yeon KIM, JEONG IK LEE, Sang Hoon CHEON, Nam Sung CHO, Seong-Mok CHO, Yong Hae KIM, Tae-Youb KIM, Hojun RYU, Chil Seong AH, Chi-Sun HWANG
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Patent number: 10012886Abstract: Disclosed is an optical modulator. An optical modulator comprises a substrate, an upper transparent electrode on the substrate, a partition wall providing a chamber between the substrate and the upper transparent electrode, an optical modulation member provided in the chamber and disposed on the substrate, and an electrolyte filling the chamber and including a first metal in an ionic state. The optical modulation member comprises a reflection layer on the substrate, and a lower transparent electrode on the reflection layer.Type: GrantFiled: March 17, 2017Date of Patent: July 3, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seong-Mok Cho, Tae-Youb Kim, Seung Youl Lee, Yong Hae Kim, Hojun Ryu, Juhee Song, Chil Seong Ah, Jeong Ik Lee, Chi-Sun Hwang