Patents by Inventor Seong Mok Cho
Seong Mok 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: 20250098218Abstract: A thin film transistor includes a first gate electrode on a substrate, a gate insulating film on the first gate electrode, a first active layer on the gate insulating film, a drain electrode on one side of the first active layer, a sidewall spacer on a side wall of the drain electrode, and a first source electrode provided on the other side of the first active layer and a sidewall of the sidewall spacer.Type: ApplicationFiled: July 2, 2024Publication date: March 20, 2025Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jae-Eun PI, Seung Youl KANG, Yong Hae KIM, Joo Yeon KIM, Hee-ok KIM, Jaehyun MOON, Jong-Heon YANG, Himchan OH, Seong-Mok CHO, Ji Hun CHOI, Chi-Sun HWANG
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Publication number: 20250089300Abstract: Provided is an oxide thin film transistor. The transistor includes a gate electrode on a center of a substrate, an active layer provided on the gate electrode and the substrate and including a metal oxide, and a source electrode and a drain electrode provided on the active layer, which is on both sides of the gate electrode. The source electrode and the drain electrode may each include a first metal layer and a second metal layer on the first metal layer.Type: ApplicationFiled: July 9, 2024Publication date: March 13, 2025Inventors: Yong Hae KIM, Chi-Sun HWANG, Jong-Heon YANG, Seong-Mok CHO, Jae-Eun PI
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Patent number: 12211630Abstract: Provided are stretchable electronics and a method for manufacturing the same. The stretchable electronics may include a substrate, a plurality of electronic elements disposed to be spaced apart from each other on the substrate, and a wire structure disposed on the substrate to connect the plurality of electronic elements to each other. The wire structure may include an insulator extending from one of the electronic elements to the other of the adjacent electronic elements and a metal wire configured to cover a top surface and side surfaces of the insulator. The insulator may include at least one bent part in a plan view.Type: GrantFiled: August 16, 2022Date of Patent: January 28, 2025Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ji Hun Choi, Chan Woo Park, Ji-Young Oh, Seung Youl Kang, Yong Hae Kim, Hee-ok Kim, Jeho Na, Jaehyun Moon, Jong-Heon Yang, Himchan Oh, Seong-Mok Cho, Sung Haeng Cho, Jae-Eun Pi, Chi-Sun Hwang
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Patent number: 12055891Abstract: Provided is an operation method for a digital hologram implementation device including a backlight and a spatial light modulator, the operation method including setting an initial phase value of an optical signal to a remedy phase, computing a reduced phase based on the remedy phase, correcting the remedy phase based on a difference between the reduced phase and a preset optimized phase, determining whether the corrected remedy phase is a stabilized phase, performing forward propagation on the stabilized phase and an amplitude of the optical signal, correcting the amplitude of the optical signal, performing backward propagation on the corrected amplitude and the stabilized phase, and determining whether a phase derived by the backward propagation is an optimized phase.Type: GrantFiled: September 30, 2021Date of Patent: August 6, 2024Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Yong Hae Kim, Gi Heon Kim, Joo Yeon Kim, Jong-Heon Yang, Sang Hoon Cheon, Seong-Mok Cho, Kyunghee Choi, Ji Hun Choi, Jae-Eun Pi, Chi-Sun Hwang
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Publication number: 20240213372Abstract: Provided is a method for manufacturing a vertical channel thin film transistor. The method for manufacturing the vertical channel thin film transistor includes forming a bottom source drain electrode, forming a first interlayer insulating layer, forming first middle source drain electrodes, forming a second interlayer insulating layer, forming a top source drain electrode, forming an opening through which portions of the bottom source drain electrode, the first middle source drain electrodes, and the top source drain electrode are exposed, forming channel layers, forming a gate insulating layer on the channel layers, the bottom source drain electrode, the first middle source drain electrodes, and the top source drain electrode, and forming gate electrodes on the gate insulating layer.Type: ApplicationFiled: October 16, 2023Publication date: June 27, 2024Inventors: Yong Hae KIM, Jong-Heon YANG, Seong-Mok CHO, Ji Hun CHOI, Jae-Eun PI, Chi-Sun HWANG
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Patent number: 12013662Abstract: An apparatus which analyses a depth of a holographic image is provided. The apparatus includes an acquisition unit that acquires a hologram, a restoration unit that restores a three-dimensional holographic image by irradiating the hologram with a light source, an image sensing unit that senses a depth information image of the restored holographic image, and an analysis display unit that analyzes a depth quality of the holographic image, based on the sensed depth information image, and the image sensing unit uses a lensless type of photosensor.Type: GrantFiled: November 10, 2021Date of Patent: June 18, 2024Assignees: Electronics and Telecommunications Research Institute, MVTECHInventors: Jae-Eun Pi, Yong Hae Kim, Jong-Heon Yang, Chul Woong Joo, Chi-Sun Hwang, Ha Kyun Lee, Seung Youl Kang, Gi Heon Kim, Joo Yeon Kim, Hee-ok Kim, Jeho Na, Jaehyun Moon, Won Jae Lee, Seong-Mok Cho, Ji Hun Choi
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Patent number: 11832486Abstract: Provided are a semiconductor device, a display panel, and a display device including the same. The semiconductor device includes a lower electrode on one side of a substrate, a spacer on another side of the substrate, a middle electrode on the spacer, a lower channel layer on portions of a sidewall of the spacer, the middle electrode, and the lower electrode, a lower gate insulating layer on the lower channel layer, a common gate electrode on the gate insulating layer, an upper gate insulating layer on the common gate electrode, an upper electrode on the spacer and the upper gate insulating layer of the middle electrode, an upper channel layer connected to the upper electrode and disposed on a sidewall of the upper gate insulating layer, and a contact electrode connected to a portion of the upper channel layer and passing through the lower gate insulating layer and the upper gate insulating layer outside the common gate electrode so as to be connected to the lower electrode.Type: GrantFiled: September 13, 2022Date of Patent: November 28, 2023Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jong-Heon Yang, Seung Youl Kang, Yong Hae Kim, Hee-ok Kim, Jeho Na, Jaehyun Moon, Chan Woo Park, Himchan Oh, Seong-Mok Cho, Sung Haeng Cho, Ji Hun Choi, Jae-Eun Pi, Chi-Sun Hwang
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Patent number: 11726330Abstract: Provided are a display device and an augmented reality apparatus including the same. The display device includes a display panel including display blocks and an optics array including pin hole structures that one-to-one correspond to the display blocks. Here, each of the pin hole structures includes a pin hole and a shielding area surrounding the pin hole, and the display blocks are spaced apart from each other in a first direction parallel to a top surface of the display panel and a second direction crossing the first direction and parallel to the top surface of the display panel.Type: GrantFiled: January 21, 2021Date of Patent: August 15, 2023Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seong-Mok Cho, Yong Hae Kim, Hyunkoo Lee, Sang Hoon Cheon, Kyunghee Choi, Chi-Sun Hwang
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Publication number: 20230091070Abstract: Provided are stretchable electronics and a method for manufacturing the same. The stretchable electronics may include a substrate, a plurality of electronic elements disposed to be spaced apart from each other on the substrate, and a wire structure disposed on the substrate to connect the plurality of electronic elements to each other. The wire structure may include an insulator extending from one of the electronic elements to the other of the adjacent electronic elements and a metal wire configured to cover a top surface and side surfaces of the insulator. The insulator may include at least one bent part in a plan view.Type: ApplicationFiled: August 16, 2022Publication date: March 23, 2023Inventors: Ji Hun CHOI, Chan Woo PARK, Ji-Young OH, Seung Youl KANG, Yong Hae KIM, Hee-ok KIM, Jeho NA, Jaehyun MOON, Jong-Heon YANG, Himchan OH, Seong-Mok CHO, Sung Haeng CHO, Jae-Eun PI, Chi-Sun HWANG
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Publication number: 20230083225Abstract: Provided are a semiconductor device, a display panel, and a display device including the same. The semiconductor device includes a lower electrode on one side of a substrate, a spacer on another side of the substrate, a middle electrode on the spacer, a lower channel layer on portions of a sidewall of the spacer, the middle electrode, and the lower electrode, a lower gate insulating layer on the lower channel layer, a common gate electrode on the gate insulating layer, an upper gate insulating layer on the common gate electrode, an upper electrode on the spacer and the upper gate insulating layer of the middle electrode, an upper channel layer connected to the upper electrode and disposed on a sidewall of the upper gate insulating layer, and a contact electrode connected to a portion of the upper channel layer and passing through the lower gate insulating layer and the upper gate insulating layer outside the common gate electrode so as to be connected to the lower electrode.Type: ApplicationFiled: September 13, 2022Publication date: March 16, 2023Inventors: Jong-Heon YANG, Seung Youl KANG, Yong Hae KIM, Hee-ok KIM, Jeho NA, Jaehyun MOON, Chan Woo PARK, Himchan OH, Seong-Mok CHO, Sung Haeng CHO, Ji Hun CHOI, Jae-Eun PI, Chi-Sun HWANG
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Patent number: 11550198Abstract: Provided is an electrochromic display device including: a first substrate; a second substrate on the first substrate; an electrolyte layer disposed between the first substrate and the second substrate; a first transparent electrode provided between the electrolyte layer and the first substrate; second transparent electrodes provided between the electrolyte layer and the second substrate; a first electrochromic layer provided between the first transparent electrode and the electrolyte layer; and a second electrochromic layer provided between the second transparent electrodes and the electrolyte layer, wherein the second transparent electrodes each extend in a first direction and be disposed apart from each other in a second direction perpendicular to the first direction, the second electrochromic layer extends between the second transparent electrodes and contacts a lower surface of the second substrate, the first electrochromic layer includes an inorganic electrochromic material, and the second electrochromicType: GrantFiled: November 4, 2021Date of Patent: January 10, 2023Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Chil Seong Ah, Juhee Song, Hojun Ryu, Tae-Youb Kim, Sang Hoon Cheon, Doo-Hee Cho, Seong-Mok Cho, Chi-Sun Hwang
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Patent number: 11392086Abstract: A 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: GrantFiled: August 7, 2020Date of Patent: July 19, 2022Assignee: 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: 20220179359Abstract: Disclosed is an apparatus of analyzing a depth of a holographic image according to the present disclosure, which includes an acquisition unit that acquires a hologram, a restoration unit that restores a three-dimensional holographic image by irradiating the hologram with a light source, an image sensing unit that senses a depth information image of the restored holographic image, and an analysis display unit that analyzes a depth quality of the holographic image, based on the sensed depth information image, and the image sensing unit uses a lensless type of photosensor.Type: ApplicationFiled: November 10, 2021Publication date: June 9, 2022Applicants: Electronics and Telecommunications Research Institute, MVTECHInventors: Jae-Eun PI, Yong Hae KIM, Jong-Heon YANG, Chul Woong JOO, Chi-Sun HWANG, HA KYUN LEE, Seung Youl KANG, Gi Heon KIM, Joo Yeon KIM, Hee-ok KIM, Jeho NA, Jaehyun MOON, Won Jae LEE, Seong-Mok CHO, Ji Hun CHOI
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Publication number: 20220179272Abstract: Provided is an electrochromic display device including: a first substrate; a second substrate on the first substrate; an electrolyte layer disposed between the first substrate and the second substrate; a first transparent electrode provided between the electrolyte layer and the first substrate; second transparent electrodes provided between the electrolyte layer and the second substrate; a first electrochromic layer provided between the first transparent electrode and the electrolyte layer; and a second electrochromic layer provided between the second transparent electrodes and the electrolyte layer, wherein the second transparent electrodes each extend in a first direction and be disposed apart from each other in a second direction perpendicular to the first direction, the second electrochromic layer extends between the second transparent electrodes and contacts a lower surface of the second substrate, the first electrochromic layer includes an inorganic electrochromic material, and the second electrochromicType: ApplicationFiled: November 4, 2021Publication date: June 9, 2022Inventors: Chil Seong AH, Juhee SONG, Hojun RYU, Tae-Youb KIM, Sang Hoon CHEON, Doo-Hee CHO, Seong-Mok CHO, Chi-Sun HWANG
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Publication number: 20220137556Abstract: Provided is an operation method for a digital hologram implementation device including a backlight and a spatial light modulator, the operation method including setting an initial phase value of an optical signal to a remedy phase, computing a reduced phase based on the remedy phase, correcting the remedy phase based on a difference between the reduced phase and a preset optimized phase, determining whether the corrected remedy phase is a stabilized phase, performing forward propagation on the stabilized phase and an amplitude of the optical signal, correcting the amplitude of the optical signal, performing backward propagation on the corrected amplitude and the stabilized phase, and determining whether a phase derived by the backward propagation is an optimized phase.Type: ApplicationFiled: September 30, 2021Publication date: May 5, 2022Inventors: Yong Hae KIM, Gi Heon KIM, Joo Yeon KIM, Jong-Heon YANG, Sang Hoon CHEON, Seong-Mok CHO, Kyunghee CHOI, Ji Hun CHOI, Jae-Eun PI, Chi-Sun HWANG
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Publication number: 20210325826Abstract: Disclosed is an apparatus for displaying a hologram including a pixel circuit array including first to nth pixel circuits, a first insulating layer provided on the pixel circuit array, first to nth pixel electrodes provided on the first insulating layer and electrically connected to the first to nth pixel circuits, respectively, a second insulating layer provided on the first insulating layer, first to nth display electrodes provided on the second insulating layer and electrically connected to the first to nth pixel electrodes, respectively, a display panel formed on the first to nth display electrodes, and a common electrode formed on the display panel. The first to nth display electrodes are clustery formed, and an area of the first to nth display electrodes is smaller than an area of the pixel circuit array.Type: ApplicationFiled: April 16, 2021Publication date: October 21, 2021Applicant: Electronics and Telecommunications Research InstituteInventors: Sang Hoon CHEON, Yong Hae KIM, Seong-Mok CHO, Kyunghee CHOI, Chi-Sun HWANG
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Publication number: 20210231956Abstract: Provided are a display device and an augmented reality apparatus including the same. The display device includes a display panel including display blocks and an optics array including pin hole structures that one-to-one correspond to the display blocks. Here, each of the pin hole structures includes a pin hole and a shielding area surrounding the pin hole, and the display blocks are spaced apart from each other in a first direction parallel to a top surface of the display panel and a second direction crossing the first direction and parallel to the top surface of the display panel.Type: ApplicationFiled: January 21, 2021Publication date: July 29, 2021Applicant: Electronics and Telecommunications Research InstituteInventors: Seong-Mok CHO, Yong Hae KIM, Hyunkoo LEE, Sang Hoon CHEON, Kyunghee CHOI, 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: 10914555Abstract: Provided is an active camouflage device including a reflective layer, a first electrode disposed on the reflective layer, a second electrode facing the first electrode, and an electrolyte provided between the first and second electrodes. The first electrode includes a transparent electrode, and the second electrode includes a metal mesh.Type: GrantFiled: April 10, 2018Date of Patent: February 9, 2021Assignee: Electronics and Telecommunications Research InstituteInventors: Tae-Youb Kim, Juhee Song, Chil Seong Ah, Seong-Mok Cho, Sujung Kim, Joo Yeon Kim, Hojun Ryu, Jeong Ik Lee, Sang Hoon Cheon, Chi-Sun Hwang