Patents by Inventor Moon Sun Lee
Moon Sun Lee 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: 10423022Abstract: A light shielding apparatus that may transmit or shield light by using a plurality of PDLC layers, a method of fabricating the light shielding apparatus, and a transparent display device including the light shielding apparatus are discussed. The light shielding apparatus can include first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and first and second polymer dispersed liquid crystal layers between the first electrode and the second electrode, wherein the first polymer dispersed liquid crystal layer includes first droplets having first liquid crystals, and the second polymer dispersed liquid crystal layer includes second droplets having second liquid crystals and first dichroic dyes.Type: GrantFiled: May 28, 2015Date of Patent: September 24, 2019Assignee: LG DISPLAY CO., LTD.Inventors: Moon Sun Lee, Ji Young Ahn, Pu Reum Kim, Ki Han Kim
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Patent number: 10345635Abstract: There are provided a light control device, a method for manufacturing the light control device, and a display device comprising the light control device. The light control device includes a first substrate and a second substrate facing each other, and a plurality of liquid crystal units between the first substrate and the second substrate, and the plurality of liquid crystal units includes a first liquid crystal unit including a droplet including a first liquid crystal and a polymer and a second liquid crystal unit which is disposed on or under the first liquid crystal unit and configured as a polymer networked liquid crystal (PNLC) including a second liquid crystal, a coloring member, and a network.Type: GrantFiled: September 15, 2015Date of Patent: July 9, 2019Assignee: LG Display Co., Ltd.Inventors: Moon Sun Lee, Ji Young Ahn, Pu Reum Kim, Ki Han Kim
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Patent number: 10317720Abstract: There are provided a light control apparatus, a method for manufacturing the light control apparatus, and a display apparatus including the light control apparatus. The light control apparatus includes a first substrate and a second substrate facing each other, and a plurality of liquid crystal units between the first substrate and the second substrate, and the plurality of liquid crystal units includes a first liquid crystal unit having a droplet including a liquid crystal and a polymer and configured as a polymer dispersed liquid crystal (PDLC) and a second liquid crystal unit which is disposed on or under the first liquid crystal unit and configured as a guest-host liquid crystal (GHLC) including a liquid crystal and a coloring member.Type: GrantFiled: September 4, 2015Date of Patent: June 11, 2019Assignee: LG Display Co., Ltd.Inventors: Moon Sun Lee, Ji Young Ahn, Pu Reum Kim, Ki Han Kim
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Patent number: 10228600Abstract: A light controlling apparatus includes first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and a liquid crystal layer between the first electrode and the second electrode, the liquid crystal layer including cholesteric liquid crystals, wherein the cholesteric liquid crystals have a focal conic state in a light shielding mode in case where no voltage is applied, and have a homeotropic state in a transparent mode in case where a voltage is applied.Type: GrantFiled: June 30, 2015Date of Patent: March 12, 2019Assignee: LG Display Co., Ltd.Inventors: Ki Han Kim, Ji Young Ahn, Moon Sun Lee, Pu Reum Kim, Seok Won Ji
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Patent number: 9989798Abstract: A light controlling apparatus, a method of fabricating the light controlling apparatus, and a transparent display device including the light controlling apparatus are disclosed, in which light may be transmitted or shielded using a polymer dispersed liquid crystal (PDLC) layer and a guest-host liquid crystal (GHLC) layer, where the guest-host liquid crystal layer includes dichroic dyes. The light controlling apparatus includes first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and a polymer dispersed liquid crystal (PDLC) layer and a guest-host liquid crystal (GHLC) layer between the first electrode and the second electrode, wherein the PDLC layer includes first liquid crystals having droplets, and the GHLC layer includes second liquid crystals and dichroic dyes.Type: GrantFiled: June 23, 2015Date of Patent: June 5, 2018Assignee: LG Display Co., Ltd.Inventors: Ki Han Kim, Ji Young Ahn, Moon Sun Lee, Pu Reum Kim
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Patent number: 9971222Abstract: A light controlling apparatus includes a first electrode on a first substrate; a first alignment film on the first electrode; a second electrode on a second substrate facing the first substrate; a second alignment film on the second electrode; and a guest-host liquid crystal layer having cholesteric liquid crystals and dichroic dyes between the first and second alignment films. The first and second electrodes provide a vertical electric field, and at least one of the first and second electrodes provides a horizontal electric field. The cholesteric liquid crystals have a homeotropic state when an electric field in a first direction is applied to the guest-host liquid crystal layer to realize a transparent mode. The cholesteric liquid crystals have a focal conic state when an electric field in a second direction is applied to realize a light shielding mode. A same state is maintained when no electric field is applied.Type: GrantFiled: July 24, 2015Date of Patent: May 15, 2018Assignee: LG Display Co., Ltd.Inventors: Ki Han Kim, Ji Young Ahn, Moon Sun Lee, Pu Reum Kim, Seok Won Ji
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Publication number: 20170261782Abstract: There are provided a light control device, a method for manufacturing the light control device, and a display device comprising the light control device. The light control device includes a first substrate and a second substrate facing each other, and a plurality of liquid crystal units between the first substrate and the second substrate, and the plurality of liquid crystal units includes a first liquid crystal unit including a droplet including a first liquid crystal and a polymer and a second liquid crystal unit which is disposed on or under the first liquid crystal unit and configured as a polymer networked liquid crystal (PNLC) including a second liquid crystal, a coloring member, and a network.Type: ApplicationFiled: September 15, 2015Publication date: September 14, 2017Applicant: LG Display Co., Ltd.Inventors: Moon Sun LEE, Ji Young AHN, Pu Reum KIM, Ki Han KIM
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Publication number: 20170261781Abstract: There are provided a light control apparatus, a method for manufacturing the light control apparatus, and a display apparatus including the light control apparatus. The light control apparatus includes a first substrate and a second substrate facing each other, and a plurality of liquid crystal units between the first substrate and the second substrate, and the plurality of liquid crystal units includes a first liquid crystal unit having a droplet including a liquid crystal and a polymer and configured as a polymer dispersed liquid crystal (PDLC) and a second liquid crystal unit which is disposed on or under the first liquid crystal unit and configured as a guest-host liquid crystal (GHLC) including a liquid crystal and a coloring member.Type: ApplicationFiled: September 4, 2015Publication date: September 14, 2017Applicant: LG Display Co., Ltd.Inventors: Moon Sun LEE, Ji Young AHN, Pu Reum KIM, Ki Han KIM
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Publication number: 20160026026Abstract: A light controlling apparatus includes a first electrode on a first substrate; a first alignment film on the first electrode; a second electrode on a second substrate facing the first substrate; a second alignment film on the second electrode; and a guest-host liquid crystal layer having cholesteric liquid crystals and dichroic dyes between the first and second alignment films. The first and second electrodes provide a vertical electric field, and at least one of the first and second electrodes provides a horizontal electric field. The cholesteric liquid crystals have a homeotropic state when an electric field in a first direction is applied to the guest-host liquid crystal layer to realize a transparent mode. The cholesteric liquid crystals have a focal conic state when an electric field in a second direction is applied to realize a light shielding mode. A same state is maintained when no electric field is applied.Type: ApplicationFiled: July 24, 2015Publication date: January 28, 2016Applicant: LG DISPLAY CO., LTD.Inventors: Ki Han Kim, Ji Young Ahn, Moon Sun Lee, Pu Reum Kim, Seok Won Ji
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Publication number: 20150378189Abstract: A light controlling apparatus, a method of fabricating the light controlling apparatus, and a transparent display device including the light controlling apparatus are disclosed, in which light may be transmitted or shielded using a polymer dispersed liquid crystal (PDLC) layer and a guest-host liquid crystal (GHLC) layer, where the guest-host liquid crystal layer includes dichroic dyes. The light controlling apparatus includes first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and a polymer dispersed liquid crystal (PDLC) layer and a guest-host liquid crystal (GHLC) layer between the first electrode and the second electrode, wherein the PDLC layer includes first liquid crystals having droplets, and the GHLC layer includes second liquid crystals and dichroic dyes.Type: ApplicationFiled: June 23, 2015Publication date: December 31, 2015Applicant: LG DISPLAY CO., LTD.Inventors: Ki Han Kim, Ji Young Ahn, Moon Sun Lee, Pu Reum Kim
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Publication number: 20150378205Abstract: A light controlling apparatus includes first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and a liquid crystal layer between the first electrode and the second electrode, the liquid crystal layer including cholesteric liquid crystals, wherein the cholesteric liquid crystals have a focal conic state in a light shielding mode in case where no voltage is applied, and have a homeotropic state in a transparent mode in case where a voltage is applied.Type: ApplicationFiled: June 30, 2015Publication date: December 31, 2015Applicant: LG Display Co., Ltd.Inventors: Ki Han Kim, Ji Young Ahn, Moon Sun Lee, Pu Reum Kim, Seok Won Ji
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Publication number: 20150349028Abstract: A light shielding apparatus that may transmit or shield light by using a plurality of PDLC layers, a method of fabricating the light shielding apparatus, and a transparent display device including the light shielding apparatus are discussed. The light shielding apparatus can include first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and first and second polymer dispersed liquid crystal layers between the first electrode and the second electrode, wherein the first polymer dispersed liquid crystal layer includes first droplets having first liquid crystals, and the second polymer dispersed liquid crystal layer includes second droplets having second liquid crystals and first dichroic dyes.Type: ApplicationFiled: May 28, 2015Publication date: December 3, 2015Applicant: LG DISPLAY CO., LTD.Inventors: Moon Sun LEE, Ji Young AHN, Pu Reum KIM, Ki Han KIM
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Patent number: 9128288Abstract: A light-controlling device is provided. The light-controlling device includes a first substrate, a second substrate disposed opposite the first substrate, and a partition wall separating the first and second substrates to define a cell. An optical medium containing charged particles is disposed within the cell between the first and second substrates. A plurality of first electrodes is disposed on the first substrate, and a plurality of second electrodes is disposed on the second substrate to generate electrical field within the cell to move at least some of the charged particles. Each of the first electrodes has a first width and a first thickness, and each of the second electrodes has a second width and a second thickness. Each of the second electrodes is disposed at an interval of a third width such that the open region on the second substrate between the second electrodes corresponds to the first electrode on the first substrate.Type: GrantFiled: December 9, 2013Date of Patent: September 8, 2015Assignee: LG DISPLAY CO., LTD.Inventors: Moon Sun Lee, HyunJin An
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Patent number: 9091899Abstract: The light-controlling device includes a first substrate, a second substrate and a partition wall separating the first and second substrates to define a cell. A light-adjustment medium containing a plurality of charged particles is disposed between the first and second substrates. One of the first electrode on the first substrate and the second electrode on the second substrate covers lesser area of the light-controlling device than the other electrode. The electrode covering lesser area of the light-controlling device may have grooved surface to increase the surface area without increasing the overall area of the light-controlling device covered by the electrode. Particle guidance member can be used to create a reservoir for holding increased amount of charged particles on the electrode covering lesser area of the light-controlling device.Type: GrantFiled: December 9, 2013Date of Patent: July 28, 2015Assignee: LG Display Co., Ltd.Inventors: MiRyn Seong, YoungHoon Noh, Moon Sun Lee
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Patent number: 5932742Abstract: The present invention relates to a novel arylsulfonylimidazolone derivative represented by the following formula (I) which shows a superior antineoplastic activity in contrast to the known sulfonylurea antitumor agents as well as little side effect: ##STR1## and its pharmaceutically acceptable salt and stereoisomer, in which - -, R.sub.1, and R.sub.2 are as defined in the specification.Type: GrantFiled: December 16, 1998Date of Patent: August 3, 1999Assignee: Dong Wha Pharm. Ind. Co., Ltd.Inventors: Sung June Yoon, Yong Ho Chung, Moon Sun Lee, Dong Rack Choi, Jung A Lee, Hee Soon Lee, Hae Ran Yun, Dug Keun Lee, Eun Yi Moon, Hyun Sook Hwang, Chung Ha Choi, Sang Hun Jung
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Patent number: 5929103Abstract: The present invention relates to a novel arylsulfonylimidazolone derivative represented by the following formula (I) which shows a superior antineoplastic activity in contrast to the known sulfonylurea antitumor agents as well as little side effect: ##STR1## and its pharmaceutically acceptable salt and stereoisomer, in which ----, R.sub.1, and R.sub.2 are as defined in the specification.Type: GrantFiled: August 21, 1997Date of Patent: July 27, 1999Assignee: Dong Wha Pharm. Ind. Co., Ltd.Inventors: Sung June Yoon, Yong Ho Chung, Moon Sun Lee, Dong Rack Choi, Jung A Lee, Hee Soon Lee, Hae Ran Yun, Dug Keun Lee, Eun Yi Moon, Hyun Sook Hwang, Chung Ha Choi, Sang Hun Jung