Patents by Inventor Jae-Bon Koo
Jae-Bon Koo 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: 20170053894Abstract: Provided is a method for manufacturing a stretchable wire, the method including removing a portion of a photoresist layer on a substrate to form a photoresist pattern comprising at least one pattern slit, applying a liquid-phase conductive material on the photoresist pattern to form a liquid-phase conductive structure in the pattern slit, forming a stretchable first insulating layer on the liquid-phase conductive structure, after removing the photoresist pattern, and separating the liquid-phase conductive structure and the first insulating layer from the substrate.Type: ApplicationFiled: July 26, 2016Publication date: February 23, 2017Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Chan Woo PARK, Jae Bon KOO, Bock Soon NA, Rae-Man PARK, Ji-Young OH, Sang Seok LEE, Soon-Won JUNG
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Patent number: 9535283Abstract: Provided is a display device and a method of manufacturing the same. The display device includes a reflective display part including a first cathode electrode and a first anode electrode and a liquid crystal layer, a light emitting display part including a second cathode electrode and a second anode electrode and a light emission film, and a thin film transistor part being electrically connected to the first and second anode electrodes. The light emitting display part further includes a bank disposed on one side of the second anode electrode between the second anode electrode and the light emission film.Type: GrantFiled: May 23, 2014Date of Patent: January 3, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Yong Hae Kim, Gi Heon Kim, Hojun Ryu, Chi-Sun Hwang, Jong-Heon Yang, Sang Chul Lim, Jae Bon Koo, Jonghee Lee, Jeong Ik Lee
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Publication number: 20160266459Abstract: Provided is a complex display device Including a first substrate and an opposed second substrate, a first electrode, an electrochromic layer, a common electrode, an emission part and a second electrode, laminated between the first substrate and the second substrate one by one, and an organic layer disposed between the first electrode and the electrochromic layer, or between the electrochromic layer and the common electrode. The organic layer of the complex display device may include at least one of a hole injection material, a hole transport material and a mixture thereof, or at least one of an electron injection material, an electron transport material or a mixture thereof.Type: ApplicationFiled: January 27, 2016Publication date: September 15, 2016Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ji-Young OH, Jae Bon KOO, Joo Yeon KIM, Bock Soon NA, Chan Woo PARK, Sang Seok LEE, Soon-Won JUNG, Hye Yong CHU
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Publication number: 20160246151Abstract: Provided is a color changeable device which includes a first substrate and a second substrate that are spaced apart from each other, a first transparent electrode disposed on the first substrate, a second transparent electrode disposed on the second substrate, an electrochromic layer disposed between the first transparent electrode and the second transparent electrode, an organic layer disposed between the first transparent electrode and the electrochromic layer. The organic layer may include a hole injection layer or an electron injection layer. The organic layer may further include a hole transport layer or an electron transport layer.Type: ApplicationFiled: January 27, 2016Publication date: August 25, 2016Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ji-Young OH, Jae Bon KOO, Joo Yeon KIM, Bock Soon NA, Chan Woo PARK, Sang Seok LEE, Soon-Won JUNG, Seong-Mok CHO, Hye Yong CHU
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Publication number: 20160246116Abstract: Provided is a display device. The display device includes a lower display element where a substrate, a first lower electrode, a liquid crystal part, and a second lower electrode are sequentially stacked, an upper display element stacked vertical to the lower display element, where a first upper electrode, a light emitting part, a second upper electrode, and a protective part are sequentially stacked, and a middle part configured to deliver a driving signal to the lower and upper display elements, between the lower and upper display elements.Type: ApplicationFiled: January 29, 2016Publication date: August 25, 2016Inventors: Jong-Heon YANG, Jae Bon KOO, Byoung-Hwa KWON, Gi Heon KIM, Yong Hae KIM, Hojun RYU, Chan Woo PARK, Chunwon BYUN, Hyunkoo LEE, Jong Tae LIM, Kyoung Ik CHO, Seong-Mok CHO, Hye Yong CHU, Chi-Sun HWANG
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Publication number: 20160234930Abstract: Provided is a stretchable transparent electrode including a first substrate having an uneven surface, a first conductive film conformally covering the uneven surface of the first substrate to have an uneven top surface, a second conductive film conformally covering the first conductive film to have an uneven top surface, and a second substrate covering the second conductive film, wherein one of the first and second conductive films is a metal film and the other is a graphene film.Type: ApplicationFiled: September 29, 2015Publication date: August 11, 2016Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Chan Woo PARK, Jae Bon KOO, Bock Soon NA, Ji-Young OH, Sang Seok LEE, Soon-Won JUNG
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Patent number: 9379350Abstract: A dual mode display apparatus according to the inventive concept includes a lower substrate, a first lower electrode on the lower substrate, a light switching layer on the first lower electrode, a first upper electrode on the light switching layer, a passivation layer on the first upper electrode, a contact plug connected to the first upper electrode and penetrating the passivation layer, a second lower electrode on the contact plug and the passivation layer, an organic light-emitting layer on the second lower electrode, a second upper electrode on the organic light-emitting layer, and an upper substrate on the second upper electrode.Type: GrantFiled: March 14, 2013Date of Patent: June 28, 2016Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jae Bon Koo, Hojun Ryu, Chi-Sun Hwang, Jeong Ik Lee, Hye Yong Chu
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Patent number: 9331126Abstract: Provided is a method for fabricating a flexible display device. The method includes attaching a shape memory alloy film memorizing a shape thereof as a curved shape at a shape memory temperature or lower to a flexible substrate at a temperature higher than the shape memory temperature, forming a display device on the flexible substrate, and returning the shape memory alloy to the curved shape to remove the shape memory alloy film from the flexible substrate.Type: GrantFiled: May 17, 2014Date of Patent: May 3, 2016Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sang Seok Lee, Kyoung Ik Cho, Bock Soon Na, Sang Chul Lim, Chan Woo Park, Soon-Won Jung, Jae Bon Koo, Hye Yong Chu
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Patent number: 9276119Abstract: Provided is a method of manufacturing a gradually stretchable substrate. The method includes forming convex regions and concave regions on a top surface of a stretchable substrate by compressing a mold onto the stretchable substrate and forming non-stretchable patterns by filling the concave regions of the stretchable substrate. The stretchable substrate includes a stretchable region defined by the non-stretchable patterns, the non-stretchable patterns have side surfaces in contact with the stretchable region, and the side surfaces of the non-stretchable patterns are formed of protrusions and a non-protrusion between the protrusions repetitively connected to one another.Type: GrantFiled: April 2, 2014Date of Patent: March 1, 2016Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ji-Young Oh, Jae Bon Koo, Sang Chul Lim, Chan Woo Park, Soon-Won Jung, Bock Soon Na, Sang Seok Lee, Hye Yong Chu
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Patent number: 9236577Abstract: Provided are a dual-mode display device and a method of manufacturing the same. The device includes a lower substrate, an upper substrate facing the lower substrate, a thin-film transistor portion between the upper substrate and the lower substrate, a first anode on one side of the thin-film transistor portion, a first cathode between the first anode and the upper substrate, an organic light-emitting layer between the first cathode and the first anode, a second anode on the other side of the thin-film transistor portion, a second cathode between the second anode and the upper substrate, or the second anode and the lower substrate, and a optical switching layer between the second cathode and the second anode.Type: GrantFiled: March 14, 2013Date of Patent: January 12, 2016Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jae Bon Koo, Jeong Ik Lee, Chi-Sun Hwang, Hojun Ryu, Hye Yong Chu
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Publication number: 20150349136Abstract: Methods for manufacturing semiconductor devices according to embodiments of the present invention may include providing a sacrificial substrate including a wiring region and a device region, sequentially forming a sacrificial layer and a buffer layer on the sacrificial substrate, forming a thin-film transistor on the buffer layer of the device region, forming a device protection element surrounding the thin-film transistor within the device region, forming a flexible substrate on the buffer layer, and exposing a surface of the buffer layer by separating the sacrificial substrate by removing the sacrificial layer. Since typical semiconductor process technologies may be directly used, the process compatibility may be improved, and semiconductor devices having high resolution and high performance may be manufactured.Type: ApplicationFiled: January 30, 2015Publication date: December 3, 2015Inventors: Jae Bon KOO, Chan Woo PARK, Soon-Won JUNG, Bock Soon NA, Sang Chul LIM, Sang Seok LEE, Kyoung Ik CHO, Hye Yong CHU
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Publication number: 20150348800Abstract: Provided is a method for fabricating an electronic device, the method including: preparing a carrier substrate including an element region and a wiring region; forming a sacrificial layer on the carrier substrate; forming an electronic element on the sacrificial layer of the element region; forming a first elastic layer having a corrugated surface on the first elastic layer of the wiring region; forming a metal wirings electrically connecting the electronic element thereto, on the first elastic layer of the wiring region; forming a second elastic layer covering the metal wirings, on the first elastic layer; forming a high rigidity pattern filling in a recess of the second elastic layer above the electronic element so as to overlap the electronic element, and having a corrugated surface; forming a third elastic layer on the second elastic layer and the high rigidity pattern; and separating the carrier substrate.Type: ApplicationFiled: January 30, 2015Publication date: December 3, 2015Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Kyoung Ik CHO, Jae Bon KOO, Chan Woo PARK, Bock Soon NA, Sang Seok LEE, Sang Chul LIM, Soon-Won JUNG, Hye Yong CHU
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Patent number: 9184063Abstract: Provided are a multi-layer interconnection structure and a manufacturing method thereof. The multi-layer interconnection structure includes a substrate; a first wiring on the substrate; an interlayer insulation layer on the first wiring; a second wiring on the interlayer insulation layer; and a via contact including at least one conductive filament penetrating through the interlayer insulation layer between the second wiring and the first wiring to be electrically connected to the first wiring and the second wiring.Type: GrantFiled: July 11, 2013Date of Patent: November 10, 2015Assignee: Electronics and Telecommunications Research InstituteInventors: Yong Suk Yang, In-Kyu You, Jae Bon Koo, Yong-Young Noh
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Patent number: 9177821Abstract: Provided is a method of fabricating an electronic circuit. The method includes preparing a substrate, forming a polymer film on the substrate, patterning the polymer film to form a polymer pattern, and forming an electronic device on the polymer pattern.Type: GrantFiled: April 22, 2014Date of Patent: November 3, 2015Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon-Won Jung, Jae Bon Koo, Chan Woo Park, Bock Soon Na, Sang Chul Lim, Sang Seok Lee, Kyoung Ik Cho, Hye Yong Chu
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Patent number: 9153651Abstract: Provided are a thin film transistor and a method for manufacturing the same. The thin film transistor manufacturing method includes forming a gate electrode on a substrate, forming an active layer that is adjacent to the gate electrode and includes an oxide semiconductor, forming an oxygen providing layer on the active layer, forming a gate dielectric between the gate electrode and the active layer, forming source and drain electrodes coupled to the active layer, forming a planarizing layer covering the gate electrode and the gate dielectric, forming a hole exposing the active layer, and performing a heat treatment process onto the planarizing layer in an atmosphere of oxygen.Type: GrantFiled: February 1, 2013Date of Patent: October 6, 2015Assignee: Electronics and Telecommunications Research InstituteInventors: Sang Chul Lim, Ji-Young Oh, Seongdeok Ahn, Kyoung Ik Cho, Sang Seok Lee, Jae Bon Koo
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Patent number: 9142801Abstract: Provided is a method for manufacturing a flexible electrode substrate. The method includes forming a microlens array under a film, forming a transparent electrode layer on the film so as to oppose the microlens array, and forming a grid electrode between the film and the transparent electrode layer or on the transparent electrode layer. Herein, the grid electrode and the microlens array are formed on the both sides of the film by performing at least one of an inkjet printing process, a roll-to-roll printing process, a screen printing process, and a stamping printing process.Type: GrantFiled: July 20, 2012Date of Patent: September 22, 2015Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jae Bon Koo, In-Kyu You, Yong Suk Yang, Minseok Kim
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Publication number: 20150173186Abstract: Provided is a stretchable devices. The stretchable device includes a first stretchable substrate having a first wavy surface that wrinkles in a first direction; first wiring lines extending along the first wavy surface in the first direction; a second stretchable substrate having a second wavy surface that faces the first wavy surface and wrinkles in a second direction intersecting the first direction, wherein the second stretchable substrate is disposed on the first stretchable substrate; second wiring lines extending along the second wavy surface in the second direction; and interlayer insulating layers disposed on the intersections of the first wiring lines and the second wiring lines and disposed between the first wiring lines and the second wiring lines.Type: ApplicationFiled: May 16, 2014Publication date: June 18, 2015Applicant: Electronics and Telecommunications Research InstituteInventors: Bock Soon NA, Soon-Won JUNG, Jae Bon KOO, Chan Woo PARK, Sang Chul LIM, Sang Seok LEE, Kyoung Ik CHO, Hye Yong CHU
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Publication number: 20150171354Abstract: Provided is a method for fabricating a flexible display device. The method includes attaching a shape memory alloy film memorizing a shape thereof as a curved shape at a shape memory temperature or lower to a flexible substrate at a temperature higher than the shape memory temperature, forming a display device on the flexible substrate, and returning the shape memory alloy to the curved shape to remove the shape memory alloy film from the flexible substrate.Type: ApplicationFiled: May 17, 2014Publication date: June 18, 2015Applicant: Electronics and Telecommunications Research InstituteInventors: Sang Seok LEE, Kyoung Ik CHO, Bock Soon NA, Sang Chul LIM, Chan Woo PARK, Soon-Won JUNG, Jae Bon KOO, Hye Yong CHU
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Patent number: 9059512Abstract: The present invention relates to a radio communication antenna and a radio communication device including the same. The radio communication antenna of the present invention includes first conductive wires extending in opposite directions with respect to a first direction on a substrate to form a dipole antenna, second conductive wires separated from the first conductive wires to be parallel with the first conductive wires, and stubs connected between the first conductive wires and the second conductive wires in a second direction intersecting with the first direction.Type: GrantFiled: June 27, 2013Date of Patent: June 16, 2015Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sang Seok Lee, Seongdeok Ahn, Jae Bon Koo
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Publication number: 20150160511Abstract: Provided is a display device and a method of manufacturing the same. The display device includes a reflective display part including a first cathode electrode and a first anode electrode and a liquid crystal layer, a light emitting display part including a second cathode electrode and a second anode electrode and a light emission film, and a thin film transistor part being electrically connected to the first and second anode electrodes. The light emitting display part further includes a bank disposed on one side of the second anode electrode between the second anode electrode and the light emission film.Type: ApplicationFiled: May 23, 2014Publication date: June 11, 2015Applicant: Electronics and Telecommunications Research InstituteInventors: Yong Hae KIM, Gi Heon KIM, Hojun RYU, Chi-Sun HWANG, Jong-Heon YANG, Sang Chul LIM, Jae Bon KOO, Jonghee LEE, Jeong Ik LEE