Patents by Inventor Hyunsu CHO
Hyunsu CHO 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: 20250176345Abstract: Provided is a display device including: a first pixel configured to emit a first optical signal, a second pixel disposed adjacent to the first pixel in a first direction and configured to emit a second optical signal, a third pixel configured to emit a third optical signal, a fourth pixel disposed adjacent to the third pixel in the first direction and configured to emit a fourth optical signal, and an optical part configured to reflect the first to fourth optical signals. The second pixel and the third pixel are disposed between the first pixel and the fourth pixel, the first optical signal and the third optical signal are emitted from a first region of the optical part, the second optical signal and the fourth optical signal are emitted from a second region of the optical part, and the first region and the second region are spaced apart from each other.Type: ApplicationFiled: November 27, 2024Publication date: May 29, 2025Inventors: WOOSEUP YOUM, Kukjoo KIM, DAE HYUN AHN, Hyunsu CHO, Chul Woong JOO
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Patent number: 12293262Abstract: Techniques for adaptive machine learning training via in-flight feature modification are described. A training monitor captures training data during the training of a machine learning model, and a metric generator creates metrics such as feature importance metrics based on the data. A rule evaluation engine determines whether any modification conditions are met for any of the features based on the metrics, and based on such a determination can cause the in-flight training job to be modified.Type: GrantFiled: September 27, 2019Date of Patent: May 6, 2025Assignee: Amazon Technologies, Inc.Inventors: Andrea Olgiati, Hyunsu Cho, Rahul Iyer, Laurence Louis Eric Rouesnel
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Publication number: 20250107337Abstract: Provided is a display panel including a base substrate, a display element layer, and a light control layer, wherein the display element layer includes a first electrode, a second electrode, a light-emitting layer and a first pixel definition layer, the light control layer includes a second pixel definition layer, and a light control pattern including quantum dots, a bottom surface of the first pixel definition layer has a first width in a first direction, the first pixel definition layer has a first height in a second direction, a bottom surface of the second pixel definition layer has a second width in the first direction, the second pixel definition layer has a second height in the second direction, and a first aspect ratio calculated by dividing the first height by the first width is smaller than a second aspect ratio calculated by dividing the second height by the second width.Type: ApplicationFiled: March 27, 2024Publication date: March 27, 2025Inventors: Byoung-Hwa KWON, Chan-mo KANG, Hyungwoo SUH, Jin Wook SHIN, YOONSUNG YOO, Hyunsu CHO, Chul Woong JOO, Sukyung CHOI
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Patent number: 12171560Abstract: A pixel circuit includes a sensing block, a stimulation block, a first line control circuit, and a second line control circuit. The sensing block outputs biometric data of a biosignal in response to a first selection signal. The stimulation block radiates a stimulation signal in response to a second selection signal. The first line control circuit outputs the first selection signal for selecting the sensing block as a target sensing block, and outputs the second selection signal for selecting the stimulation block as a target stimulation block. The second line control circuit processes characteristic data associated with the biometric data and the stimulation signal.Type: GrantFiled: April 20, 2020Date of Patent: December 24, 2024Assignee: Electronics and Telecommunications Research InstituteInventors: Chunwon Byun, O Eun Kwon, Chan Woo Park, Hyunkoo Lee, Sukyung Choi, Chan-Mo Kang, Byoung-Hwa Kwon, Chil Seong Ah, Hyunsu Cho, Jeong Ik Lee, Nam Sung Cho
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Patent number: 12164183Abstract: Provided is a nano structure for controlling optical properties of an optical device. The nano structure includes a substrate, a surface modification layer provided on the substrate to modify surface energy of the substrate, and a capping layer provided on the surface modification layer. The capping layer includes a convex portion having a convex profile away from the surface modification layer and a concave portion that is in contact with the surface modification layer.Type: GrantFiled: October 1, 2021Date of Patent: December 10, 2024Assignee: Electronics and Telecommunications Research InstituteInventors: Doo-Hee Cho, Byoung-Hwa Kwon, Young Sam Park, Jin Wook Shin, Nam Sung Cho, Hyunsu Cho
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Patent number: 12144222Abstract: Provided is a display device. The display device includes a substrate having a pixel area including a first sub-pixel area, a second sub-pixel area, and a third sub-pixel area, a first control layer on the substrate, a second control layer on the first control layer, an intervening layer disposed between the first control layer and the second control layer on the first sub-pixel area and the second sub-pixel area, first quantum dots on the intervening layer of the first sub-pixel area, second quantum dots on the intervening layer of the second sub-pixel area, and an organic layer configured to cover a top surface and a side surface of the intervening layer between the first control layer and the second control layer.Type: GrantFiled: November 12, 2021Date of Patent: November 12, 2024Assignee: Electronics and Telecommunications Research InstituteInventors: Chan-mo Kang, Sukyung Choi, Chunwon Byun, Jin Wook Shin, Hyunsu Cho
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Publication number: 20240271931Abstract: Disclosed herein is an attack detection device for detecting an attack targeting a gyroscope. The attack detection device includes: a data collection unit configured to receive measurement values from an accelerometer and the gyroscope; and an attack detection unit configured to estimate an angular velocity using the measurement value from the accelerometer, and to detect an attack by comparing the estimated angular velocity to an angular velocity measured by the gyroscope.Type: ApplicationFiled: August 11, 2023Publication date: August 15, 2024Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATIONInventors: Dong Hoon LEE, Hyunsu CHO
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Publication number: 20240057429Abstract: Provided is a display device. The display device includes a substrate and a first pixel and a second pixel, which are disposed adjacent to each other in a first direction parallel to a top surface of the substrate. Each of the first pixel and the second pixel is provided in plurality and is alternately and repeatedly arranged in the first direction. The first pixel includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, which are sequentially arranged in the first direction. The second pixel includes a fourth sub-pixel, a fifth sub-pixel, and a sixth sub-pixel, which are sequentially arranged in the first direction. The first to third sub-pixels include sub-pixels having colors different from each other. The fourth to sixth sub-pixels include sub-pixels having colors different from each other. The third sub-pixel and the fourth sub-pixel include sub-pixels that are disposed adjacent to each other and have the same color.Type: ApplicationFiled: June 16, 2023Publication date: February 15, 2024Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventor: Hyunsu CHO
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Publication number: 20240057431Abstract: A display device includes a first pixel and a second pixel, which are disposed adjacent to each other in a first direction and are alternately and repeatedly arranged. The first pixel includes a first sub-pixel, a second sub-pixel, and two third sub-pixels, which are arranged in a 2×2 matrix form. The second pixel includes a fourth sub-pixel, a fifth sub-pixel, and two sixth sub-pixels, which are arranged in a 2×2 matrix form. The first to third sub-pixels include sub-pixels having colors different from each other. The fourth to sixth sub-pixels include sub-pixels having colors different from each other. The first sub-pixel and the fourth sub-pixel include sub-pixels having the same color. The second sub-pixel and the fifth sub-pixel include sub-pixels having the same color. The third sub-pixels and the sixth sub-pixels include sub-pixels having the same color. The first pixel and the second pixel have a line symmetry relationship.Type: ApplicationFiled: June 29, 2023Publication date: February 15, 2024Applicant: Electronics and Telecommunications Research InstituteInventor: Hyunsu CHO
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Publication number: 20240057436Abstract: Disclosed is a display device. An embodiment of the inventive concept provides a display device that includes a substrate including a first sub pixel region, a second sub pixel region, and a third sub pixel region, reflective bottom electrodes provided on the substrate, a blue light emitting layer provided on the lower reflective electrodes, an encapsulation layer provided on the blue light emitting layer, a green color conversion layer provided on the encapsulation layer in the first sub pixel region, a color conversion layer provided on the encapsulation layer in the second sub pixel region, a blue reflective layer provided on both the green color conversion layer and the color conversion layer, and a blue transmissive layer disposed adjacent to the color conversion layer and provided on the encapsulation layer in the third sub pixel region.Type: ApplicationFiled: May 10, 2023Publication date: February 15, 2024Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Chan-mo KANG, Byoung-Hwa KWON, Gi Heon KIM, Jin-Wook SHIN, Nam Sung CHO, Hyunsu CHO, Sukyung CHOI
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Publication number: 20230389400Abstract: Provided is a flexible organic light emitting element that may include a flexible substrate, a circuit element layer on the flexible substrate, an emission layer on the circuit element layer, a first encapsulation structure between the flexible substrate and the circuit element layer, and a second encapsulation structure on the emission layer, wherein the first encapsulation structure includes a first inorganic layer and a first organic layer, which are sequentially stacked on an upper surface of the flexible substrate, and the first organic layer includes a first polymer nanocomposite.Type: ApplicationFiled: April 19, 2023Publication date: November 30, 2023Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Byoung-Hwa KWON, Chan-mo KANG, Kukjoo KIM, Gi Heon KIM, Sujung KIM, Sooji NAM, Chunwon BYUN, Jin-Wook SHIN, Jong-Heon YANG, Hyunsu CHO, Sukyung CHOI
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Patent number: 11476433Abstract: Provided is a light emitting device including a lower electrode, an upper electrode disposed to face the lower electrode, a quantum dot light emitting layer between the lower electrode and the upper electrode, an electron transport layer between the lower electrode and the quantum dot light emitting layer, and a hole transport layer between the upper electrode and the quantum dot light emitting layer, wherein the quantum dot light emitting layer includes a quantum dot, and a first ligand on a surface of the quantum dot, and a second ligand on the surface of the quantum dot.Type: GrantFiled: April 3, 2020Date of Patent: October 18, 2022Assignee: Electronics and Telecommunications Research InstituteInventors: Sukyung Choi, Hyunkoo Lee, Byoung-Hwa Kwon, Jaehyun Moon, Hyunsu Cho, Chan-mo Kang, Chunwon Byun, Jin Wook Shin, Nam Sung Cho
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Patent number: 11430836Abstract: A display device according to an embodiment of the inventive concept provides includes a substrate, a green light emitting element group and a blue light emitting element group, which are repeatedly arranged in a first direction parallel to a top surface of the substrate, and a red conversion pattern on the green light emitting element group and the blue light emitting element group. Here, the red conversion pattern overlaps a portion of the green light emitting element group and a portion of the blue light emitting element group in a second direction perpendicular to the top surface of the substrate.Type: GrantFiled: November 12, 2019Date of Patent: August 30, 2022Assignee: Electronics and Telecommunications Research InstituteInventors: Hyunsu Cho, Chan-mo Kang, Byoung-Hwa Kwon, Chunwon Byun, Jin Wook Shin, Hyunkoo Lee, Sukyung Choi
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Publication number: 20220199706Abstract: Provided is a display device. The display device includes a substrate having a pixel area including a first sub-pixel area, a second sub-pixel area, and a third sub-pixel area, a first control layer on the substrate, a second control layer on the first control layer, an intervening layer disposed between the first control layer and the second control layer on the first sub-pixel area and the second sub-pixel area, first quantum dots on the intervening layer of the first sub-pixel area, second quantum dots on the intervening layer of the second sub-pixel area, and an organic layer configured to cover a top surface and a side surface of the intervening layer between the first control layer and the second control layer.Type: ApplicationFiled: November 12, 2021Publication date: June 23, 2022Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Chan-mo KANG, Sukyung CHOI, CHUNWON BYUN, Jin Wook SHIN, Hyunsu CHO
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Publication number: 20220137436Abstract: Provided is a nano structure for controlling optical properties of an optical device. The nano structure includes a substrate, a surface modification layer provided on the substrate to modify surface energy of the substrate, and a capping layer provided on the surface modification layer. The capping layer includes a convex portion having a convex profile away from the surface modification layer and a concave portion that is in contact with the surface modification layer.Type: ApplicationFiled: October 1, 2021Publication date: May 5, 2022Inventors: Doo-Hee CHO, Byoung-Hwa KWON, YOUNG SAM PARK, Jin Wook SHIN, Nam Sung CHO, Hyunsu CHO
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Publication number: 20210066631Abstract: Provided is a light emitting device including a lower electrode, an upper electrode disposed to face the lower electrode, a quantum dot light emitting layer between the lower electrode and the upper electrode, an electron transport layer between the lower electrode and the quantum dot light emitting layer, and a hole transport layer between the upper electrode and the quantum dot light emitting layer, wherein the quantum dot light emitting layer includes a quantum dot, and a first ligand on a surface of the quantum dot, and a second ligand on the surface of the quantum dot.Type: ApplicationFiled: April 3, 2020Publication date: March 4, 2021Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sukyung CHOI, Hyunkoo LEE, Byoung-Hwa KWON, Jaehyun MOON, Hyunsu CHO, Chan-mo KANG, CHUNWON BYUN, Jin Wook SHIN, Nam Sung CHO
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Publication number: 20210005670Abstract: A display device according to an embodiment of the inventive concept provides includes a substrate, a green light emitting element group and a blue light emitting element group, which are repeatedly arranged in a first direction parallel to a top surface of the substrate, and a red conversion pattern on the green light emitting element group and the blue light emitting element group. Here, the red conversion pattern overlaps a portion of the green light emitting element group and a portion of the blue light emitting element group in a second direction perpendicular to the top surface of the substrate.Type: ApplicationFiled: November 12, 2019Publication date: January 7, 2021Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyunsu CHO, Chan-mo KANG, Byoung-Hwa KWON, CHUNWON BYUN, Jin Wook SHIN, Hyunkoo LEE, Sukyung CHOI
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Publication number: 20200352460Abstract: A pixel circuit includes a sensing block, a stimulation block, a first line control circuit, and a second line control circuit. The sensing block outputs biometric data of a biosignal in response to a first selection signal. The stimulation block radiates a stimulation signal in response to a second selection signal. The first line control circuit outputs the first selection signal for selecting the sensing block as a target sensing block, and outputs the second selection signal for selecting the stimulation block as a target stimulation block. The second line control circuit processes characteristic data associated with the biometric data and the stimulation signal.Type: ApplicationFiled: April 20, 2020Publication date: November 12, 2020Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: CHUNWON BYUN, O Eun KWON, Chan Woo PARK, Hyunkoo LEE, Sukyung CHOI, Chan-mo KANG, Byoung-Hwa KWON, Chil Seong AH, Hyunsu CHO, JEONG IK LEE, Nam Sung CHO
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Patent number: 10789448Abstract: The inventive concept provides an organic electronic device and a method of fabricating the same. The organic electronic device includes a flexible substrate configured to include a first region and a second region which are laterally spaced apart from each other, an organic light-emitting diode disposed in the first region of the flexible substrate, and a photodetector disposed in the second region of the flexible substrate, wherein the organic light-emitting diode and the photodetector are disposed on the same plane.Type: GrantFiled: July 13, 2018Date of Patent: September 29, 2020Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Young Sam Park, Jaehyun Moon, Seongdeok Ahn, Seung Youl Kang, Sung Haeng Cho, Byoung Gon Yu, Jeong Ik Lee, Jonghee Lee, Nam Sung Cho, Doo-Hee Cho, Hyunsu Cho
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Patent number: 10490763Abstract: Provided is a display device and a manufacturing method thereof. More specifically, the present invention relates to a display device including a nickel oxide thin film co-doped with a copper monovalent cation and a copper divalent cation, and a manufacturing method thereof. The present invention provides a display device including a substrate, a first electrode layer disposed on the substrate, a first common layer disposed on the substrate, a light emitting layer disposed on the first common layer, a second common layer disposed on the light emitting layer, and a second electrode layer disposed on the second common layer, wherein the first common layer includes a nickel oxide thin film co-doped with a first metal cation and a second metal cation, and the oxidation number of the first metal cation and the oxidation number the second metal cation are different from each other.Type: GrantFiled: August 2, 2018Date of Patent: November 26, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Byoung-Hwa Kwon, Chul Woong Joo, Jonghee Lee, Hyunkoo Lee, Hyunsu Cho, Nam Sung Cho