Patents by Inventor Ji Young Ahn
Ji Young Ahn 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: 11954891Abstract: Provided is a method of compressing an occupancy map of a three-dimensional (3D) point cloud, and more specifically, a method of compressing an occupancy map of a point cloud in which an occupancy map image of a point cloud existing in a 3D space is compressed based on a compression quality or a patch-by-patch inspection method of the occupancy map image so that compression distortion is minimized when reconstructing the compressed occupancy map image so as to remarkably improve the quality of a reconstructed occupancy map image.Type: GrantFiled: June 30, 2021Date of Patent: April 9, 2024Assignees: Electronics and Telecommunications Research Institute, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)Inventors: Eun Young Chang, Euee Seon Jang, Tian Yu Dong, Ji Hun Cha, Kyu Tae Kim, Jae Young Ahn
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Publication number: 20240089859Abstract: An electronic device is provided. The electronic device includes a first communication circuit, a second communication circuit, a processor configured to be electrically connected with the first communication circuit and the second communication circuit, and a memory configured to be electrically connected with the processor. The memory includes instructions, when executed by the processor, cause the processor to obtain location information of the electronic device, transmit a first message for requesting to change a state of the electronic device to a network, receive a first response message to the transmitted first message from the network, transmit a second message for requesting a parameter for an operation cycle of the second communication circuit to the network, receive a second response message to the second message from the network, and change the operation cycle of the second communication circuit to a value corresponding to a current state of the electronic device.Type: ApplicationFiled: October 18, 2023Publication date: March 14, 2024Inventors: Ji Young CHA, Hye Jeong KIM, Jung Hoon AHN
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Patent number: 10510813Abstract: Disclosed is a transparent display device. The transparent display device includes a first display panel, including a transmissive area and an emissive area where a first pixel including a plurality of subpixels displaying an image is provided, and a second display panel including a second pixel provided to overlap the emissive area and the transmissive area of the first display panel, the second display panel being provided on a first surface of the first display panel. The second pixel of the second display panel controls an amount of light incident on the first display panel, thereby preventing a visibility of an image displayed by the first display panel from being reduced by external light.Type: GrantFiled: December 23, 2017Date of Patent: December 17, 2019Assignee: LG Display Co., Ltd.Inventors: Hyeon Ho Son, Ji Young Ahn
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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: 10378054Abstract: There is provided a sol-gel chip using a porous substrate for entrapping small molecules and a method for screening a small molecule-specific material using the same, and more particularly, a porous substrate sol-gel chip characterized in that a sol-gel composition for entrapping small molecules is spotted on a surface of the porous substrate, a method for manufacturing the porous substrate sol-gel chip for entrapping small molecules, and a method for screening a material specifically binding to the small molecules using the porous substrate sol-gel chip for entrapping small molecules. According to the present invention, the small molecules can be effectively entrapped in the chip and the inflow of aptamers can be maintained as compared with the existing methods and thus aptamers specific to an extensive range of small molecules can be more easily selected.Type: GrantFiled: January 26, 2013Date of Patent: August 13, 2019Assignee: DONGGUK UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: So Youn Kim, Ji Young Ahn
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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: 10221412Abstract: The present invention relates to a multiplex microfluidic device for selection of nucleic acid aptamers and a method for high-throughput selection of nucleic acid aptamers using the same, and more particularly to a multiplex microfluidic device (SELEX lap-on-a-chip) that uses an improved multiplex platform in place of the development of an aptamer for a single target and to a method for high throughput selection of aptamers using the same together with high-throughput sequencing. A multiplex microfluidic device according to the present invention can simultaneously detect aptamers for a plurality of targets, and it can greatly increase the screening throughput and greatly shorten the process time compared to conventional multiplex techniques.Type: GrantFiled: October 5, 2011Date of Patent: March 5, 2019Assignees: PCL, INC., DONGGUK UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: So Youn Kim, Ji-Young Ahn, Minjoung Jo, Tae Kyung Kim
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Publication number: 20180190735Abstract: Disclosed is a transparent display device. The transparent display device includes a first display panel, including a transmissive area and an emissive area where a first pixel including a plurality of subpixels displaying an image is provided, and a second display panel including a second pixel provided to overlap the emissive area and the transmissive area of the first display panel, the second display panel being provided on a first surface of the first display panel. The second pixel of the second display panel controls an amount of light incident on the first display panel, thereby preventing a visibility of an image displayed by the first display panel from being reduced by external light.Type: ApplicationFiled: December 23, 2017Publication date: July 5, 2018Applicant: LG Display Co., Ltd.Inventors: Hyeon Ho SON, Ji Young AHN
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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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Patent number: 9858893Abstract: A display device capable of displaying a standby screen on a display panel with various colors in a standby mode, and a method for controlling the same are disclosed. The display device includes a display panel including pixels, gate lines and data lines connected to the pixels and a common line connected to the pixels, a gate switching unit for connecting the gate lines in response to an external standby mode signal, a data switching unit for grouping the data lines in response to the standby mode signal and connecting the data lines belonging to the same group, and a standby mode driving unit for driving the gate lines in response to the standby mode signal and driving the data lines of at least one group and the common line so as to generate a potential difference between the data lines of the group and the common line.Type: GrantFiled: November 3, 2015Date of Patent: January 2, 2018Assignee: LG Display Co., Ltd.Inventor: Ji-Young Ahn
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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: 20160055824Abstract: A display device capable of displaying a standby screen on a display panel with various colors in a standby mode, and a method for controlling the same are disclosed. The display device includes a display panel including pixels, gate lines and data lines connected to the pixels and a common line connected to the pixels, a gate switching unit for connecting the gate lines in response to an external standby mode signal, a data switching unit for grouping the data lines in response to the standby mode signal and connecting the data lines belonging to the same group, and a standby mode driving unit for driving the gate lines in response to the standby mode signal and driving the data lines of at least one group and the common line so as to generate a potential difference between the data lines of the group and the common line.Type: ApplicationFiled: November 3, 2015Publication date: February 25, 2016Applicant: LG DISPLAY CO., LTD.Inventor: Ji-Young AHN
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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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Patent number: 9236025Abstract: A display device for displaying a standby screen in a standby mode (SM), and a method for driving the same are disclosed. The display device includes: a display panel including pixels, and gate lines (GLs), data lines (DLs), and a common line (CL) connected to the pixels, a gate switching unit connecting the GLs due to an external SM signal, a data driver (DD): converting input data signals into analog signals due to a display mode signal, and supplying the analog signals to the DLs, a data switching unit: grouping the DLs due to the SM signal, and connecting DLs of the same group, and a SM driving unit: driving the GLs due to the SM signal, and driving the DLs of at least one group and the CL to generate a potential difference therebetween. When the SM signal is supplied to the DD, operation of the DD is stopped.Type: GrantFiled: April 4, 2013Date of Patent: January 12, 2016Assignee: LG Display Co., Ltd.Inventor: Ji-Young Ahn
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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: 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