Patents by Inventor Kwan Hyun Cho
Kwan Hyun 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: 20240104115Abstract: Disclosed herein are a method and apparatus for converting a credential data schema.Type: ApplicationFiled: July 11, 2023Publication date: March 28, 2024Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seok-Hyun KIM, Soo-Hyung KIM, Young-Seob CHO, Geon-Woo KIM, Young-Sam KIM, Jong-Hyouk NOH, Kwan-Tae CHO, Sang-Rae CHO, Jin-Man CHO, Seung-Hun JIN
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Publication number: 20240104990Abstract: Disclosed herein is a method for user-centered visitor access management, which may include issuing, by a management office server, a digital certificate to a householder terminal; registering, by a wall-pad, a householder in response to a request to register the householder based on the digital certificate; requesting, by the householder terminal, the management office server to register a visitor based on a visit request from a visitor terminal and delegating the digital certificate to the visitor terminal; making an entry request to a management terminal based on the digital certificate; verifying, by the wall-pad, the digital certificate based on a request for verification for entry from a wall-pad management terminal and providing a verification result to the wall-pad management terminal when the management terminal is the wall-pad management terminal; and managing and controlling, by the wall-pad, permission to use home devices based on delegated permission information of the digital certificate.Type: ApplicationFiled: March 22, 2023Publication date: March 28, 2024Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seok-Hyun KIM, Young-Seob CHO, Soo-Hyung KIM, Geon-Woo KIM, Young-Sam KIM, Jong-Hyouk NOH, Kwan-Tae CHO, Sang-Rae CHO, Jin-Man CHO, Seung-Hun JIN
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Patent number: 11104805Abstract: Highly saturated scarlet dye ink for a high-speed inkjet process and a method of preparing the highly saturated scarlet dye ink are disclosed. In particular, an ink composition according to the present invention includes a dye including a compound represented by Formula 1, and further includes, in addition to the dye, distilled water, a surfactant, and an additive. The ink composition develops a highly saturated scarlet color that is unable to be developed by existing inks for digital textile printing (DTP), and has high water solubility, excellent heat resistance, and light-fastness, and thus may be effectively used as dye and ink for a high-speed inkjet process.Type: GrantFiled: April 26, 2019Date of Patent: August 31, 2021Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventors: Jun Choi, Sol Choi, Kwan Hyun Cho, Eui Sang Yoo
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Publication number: 20210038494Abstract: The disclosed technology relates to a phase stable personal care cleansing composition containing high amounts of a non-polar oil. The compositions are high foaming and provide conditioning benefits to the scalp and skin. The composition comprises: a) water; b) a crosslinked nonionic amphiphilic polymer; c) a non-polar oil phase; d) at least one fatty acid soap; and e) an optional detersive surfactant other than d).Type: ApplicationFiled: March 11, 2019Publication date: February 11, 2021Inventors: Xianghua Qu, Kwan Hyun Cho, Brian D. Figura, Yan Zhang
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Patent number: 10831060Abstract: A display device and a method of manufacturing the same. The display device includes: a substrate; and a reflection member that is disposed on a surface of the substrate and has a first thickness in a first reflection region corresponding to a light-emitting region and a second thickness in a second reflection region corresponding to a non-light-emitting region.Type: GrantFiled: December 19, 2016Date of Patent: November 10, 2020Assignee: Samsung Display Co., Ltd.Inventors: Sang-Hoon Yim, Seong-Min Kim, Kyung-Ho Kim, Kwan-Hyun Cho, Young-Woo Song
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Publication number: 20200109288Abstract: Highly saturated scarlet dye ink for a high-speed inkjet process and a method of preparing the highly saturated scarlet dye ink are disclosed. In particular, an ink composition according to the present invention includes a dye including a compound represented by Formula 1, and further includes, in addition to the dye, distilled water, a surfactant, and an additive. The ink composition develops a highly saturated scarlet color that is unable to be developed by existing inks for digital textile printing (DTP), and has high water solubility, excellent heat resistance, and light-fastness, and thus may be effectively used as dye and ink for a high-speed inkjet process.Type: ApplicationFiled: April 26, 2019Publication date: April 9, 2020Inventors: Jun CHOI, Sol CHOI, Kwan Hyun CHO, Eui Sang YOO
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Patent number: 9905802Abstract: An organic light emitting display apparatus and a method of manufacturing the same are provided. The apparatus includes a substrate, a first electrode formed on the substrate, an intermediate layer formed on the first electrode. The intermediate layer includes an organic emission layer. A second electrode is formed on the intermediate layer, and a capping layer is formed on the second electrode in a first region. The capping layer includes a first edge portion and at least two layers. A third electrode is formed on the second electrode in a second region. The second region is not overlapped with the first region, and the third electrode includes a second edge portion having a side portion facing a side portion of the first edge portion of the capping layer. Electric properties and image quality may be improved.Type: GrantFiled: April 4, 2016Date of Patent: February 27, 2018Assignee: Samsung Display Co., Ltd.Inventors: Jun-Ho Choi, Kwan-Hyun Cho, Jin-Koo Chung
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Patent number: 9793331Abstract: An organic light emitting display apparatus includes a substrate, an encapsulation member facing the substrate, a plurality of pixels between the substrate and the encapsulation member, each pixel including a light emission area and a non-emission area, a first electrode overlapping at least the light emission area, an intermediate layer on the first electrode and including an organic emission layer, a second electrode on the intermediate layer, and a reflective member on a bottom surface of the encapsulation member, the bottom surface of the encapsulation member facing the substrate, and the reflective member including an opening corresponding to the light emission area, and a reflective surface around the opening and corresponding to the non-emission area.Type: GrantFiled: September 15, 2016Date of Patent: October 17, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sang-Hoon Yim, Seong-Min Kim, Kwan-Hyun Cho, Kyung-Ho Kim, Jun-Ho Choi, Jin-Koo Chung, Young-Woo Song
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Publication number: 20170097545Abstract: A display device and a method of manufacturing the same. The display device includes: a substrate; and a reflection member that is disposed on a surface of the substrate and has a first thickness in a first reflection region corresponding to a light-emitting region and a second thickness in a second reflection region corresponding to a non-light-emitting region.Type: ApplicationFiled: December 19, 2016Publication date: April 6, 2017Inventors: Sang-Hoon YIM, Seong-Min KIM, Kyung-Ho KIM, Kwan-Hyun CHO, Young-Woo SONG
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Patent number: 9557599Abstract: A display device and a method of manufacturing the same. The display device includes: a substrate; and a reflection member that is disposed on a surface of the substrate and has a first thickness in a first reflection region corresponding to a light-emitting region and a second thickness in a second reflection region corresponding to a non-light-emitting region.Type: GrantFiled: May 13, 2015Date of Patent: January 31, 2017Assignee: Samsung Display Co., Ltd.Inventors: Sang-Hoon Yim, Seong-Min Kim, Kyung-Ho Kim, Kwan-Hyun Cho, Young-Woo Song
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Publication number: 20170005157Abstract: An organic light emitting display apparatus includes a substrate, an encapsulation member facing the substrate, a plurality of pixels between the substrate and the encapsulation member, each pixel including a light emission area and a non-emission area, a first electrode overlapping at least the light emission area, an intermediate layer on the first electrode and including an organic emission layer, a second electrode on the intermediate layer, and a reflective member on a bottom surface of the encapsulation member, the bottom surface of the encapsulation member facing the substrate, and the reflective member including an opening corresponding to the light emission area, and a reflective surface around the opening and corresponding to the non-emission area.Type: ApplicationFiled: September 15, 2016Publication date: January 5, 2017Inventors: Sang-Hoon YIM, Seong-Min KIM, Kwan-Hyun CHO, Kyung-Ho KIM, Jun-Ho CHOI, Jin-Koo CHUNG, Young-Woo SONG
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Patent number: 9502692Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a plurality of pixels and each pixel includes a first area configured to emit light and a second area configured to transmit external light therethrough. Each pixel also includes a first electrode formed in the first area and an organic layer formed in the first area and the second area, wherein the organic layer covers the first electrode. Each pixel further includes a second electrode covering at least the organic layer formed in the first area and having a first opening exposing at least a portion of the organic layer formed in the second area. A reflection prevention layer is formed substantially covering the organic layer formed in the second area. The reflection prevention layer has a refractive index lower than that of the organic layer.Type: GrantFiled: December 10, 2015Date of Patent: November 22, 2016Assignee: Samsung Display Co., Ltd.Inventors: Kwan-Hyun Cho, Jin-Koo Chung, Jun-Ho Choi
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Patent number: 9450201Abstract: An organic light emitting display apparatus includes a substrate, an encapsulation member facing the substrate, a plurality of pixels between the substrate and the encapsulation member, each pixel including a light emission area and a non-emission area, a first electrode overlapping at least the light emission area, an intermediate layer on the first electrode and including an organic emission layer, a second electrode on the intermediate layer, and a reflective member on a bottom surface of the encapsulation member, the bottom surface of the encapsulation member facing the substrate, and the reflective member including an opening corresponding to the light emission area, and a reflective surface around the opening and corresponding to the non-emission area.Type: GrantFiled: September 10, 2015Date of Patent: September 20, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sang-Hoon Yim, Seong-Min Kim, Kwan-Hyun Cho, Kyung-Ho Kim, Jun-Ho Choi, Jin-Koo Chung, Young-Woo Song
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Patent number: 9406899Abstract: An organic light-emitting display apparatus includes: a substrate; pixels defined on the substrate, where each pixel includes a first region including a light-emitting region and a second region including a transmission region; a third region defined on the substrate disposed between the pixels; first electrodes disposed in the pixels on the substrate, respectively, where each first electrode is disposed in the first region of a corresponding pixel; an organic emission layer disposed to cover the first electrodes; a first auxiliary layer disposed on the organic emission layer in the second region and which exposes the first region; a second electrode disposed on the organic emission layer in the first region; a second auxiliary layer disposed in the first and second regions and which exposes the third region; and a third electrode disposed in the third region and in contact with the second electrode.Type: GrantFiled: June 16, 2015Date of Patent: August 2, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin-Koo Chung, Jun-Ho Choi, Kwan-Hyun Cho
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Publication number: 20160218321Abstract: An organic light emitting display apparatus and a method of manufacturing the same are provided. The apparatus includes a substrate, a first electrode formed on the substrate, an intermediate layer formed on the first electrode. The intermediate layer includes an organic emission layer. A second electrode is formed on the intermediate layer, and a capping layer is formed on the second electrode in a first region. The capping layer includes a first edge portion and at least two layers. A third electrode is formed on the second electrode in a second region. The second region is not overlapped with the first region, and the third electrode includes a second edge portion having a side portion facing a side portion of the first edge portion of the capping layer. Electric properties and image quality may be improved.Type: ApplicationFiled: April 4, 2016Publication date: July 28, 2016Inventors: Jun-Ho Choi, Kwan-Hyun Cho, Jin-Koo Chung
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Patent number: 9331308Abstract: An organic light emitting display apparatus and a method of manufacturing the same are provided. The apparatus includes a substrate, a first electrode formed on the substrate, an intermediate layer formed on the first electrode. The intermediate layer includes an organic emission layer. A second electrode is formed on the intermediate layer, and a capping layer is formed on the second electrode in a first region. The capping layer includes a first edge portion and at least two layers. A third electrode is formed on the second electrode in a second region. The second region is not overlapped with the first region, and the third electrode includes a second edge portion having a side portion facing a side portion of the first edge portion of the capping layer. Electric properties and image quality may be improved.Type: GrantFiled: October 29, 2013Date of Patent: May 3, 2016Assignee: Samsung Display Co., Ltd.Inventors: Jun-Ho Choi, Kwan-Hyun Cho, Jin-Koo Chung
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Patent number: 9324771Abstract: An organic light-emitting display apparatus includes a first substrate including a display unit having a light-emitting region and a non-light-emitting region, a second substrate parallel to the first substrate, and a reflective member on a surface of the second substrate that faces the first substrate, the reflective member corresponding to the non-light-emitting region of the display unit and being configured to sense touch, and the reflective member including a plurality of first pattern parts electrically connected along a first direction and a plurality of second pattern parts electrically connected along a second direction.Type: GrantFiled: April 11, 2014Date of Patent: April 26, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sang-Hoon Yim, Kyung-Ho Kim, Young-Woo Song, Jong-Hyuk Lee, Kwan-Hyun Cho
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Publication number: 20160099438Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a plurality of pixels and each pixel includes a first area configured to emit light and a second area configured to transmit external light therethrough. Each pixel also includes a first electrode formed in the first area and an organic layer formed in the first area and the second area, wherein the organic layer covers the first electrode. Each pixel further includes a second electrode covering at least the organic layer formed in the first area and having a first opening exposing at least a portion of the organic layer formed in the second area. A reflection prevention layer is formed substantially covering the organic layer formed in the second area. The reflection prevention layer has a refractive index lower than that of the organic layer.Type: ApplicationFiled: December 10, 2015Publication date: April 7, 2016Inventors: Kwan-Hyun CHO, Jin-Koo CHUNG, Jun-Ho CHOI
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Patent number: 9293515Abstract: An organic light-emitting display device and a method of manufacturing the organic light-emitting display device. The organic light-emitting display device is a dual emission display capable of displaying differing images on either side of the display, and includes a facing electrode that is selectively deposited in the first area but not in the second area, the selectivity being brought about by a varying an underlying material having differing adhesive forces with the material of the facing electrode. In addition, the underlying materials of the facing electrode and other intermediate layers of the organic light emitting diode device provide extra distance between the organic light emitting layer and a reflective electrode, so that exciton quenching is reduced, resulting in improved light emitting efficiency.Type: GrantFiled: February 5, 2014Date of Patent: March 22, 2016Assignee: Samsung Display Co., Ltd.Inventors: Jun-Ho Choi, Jin-Koo Chung, Kwan-Hyun Cho
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Patent number: 9257667Abstract: An organic light-emitting display apparatus includes a substrate including a display area and a peripheral area surrounding the display area, a plurality of pixels being disposed in the display area, a plurality of first electrodes in the display area, a plurality of stripe-shaped second electrodes in the display area, the second electrodes extending in a first direction and being spaced apart from each other in a second direction crossing the first direction, and each of the plurality of the second electrodes having an uneven thickness along a third direction inside the display area, an intermediate layer between corresponding first and second electrodes, the intermediate layer having a light-emitting layer, and a connection wiring in the peripheral area, the connection wiring electrically connecting the plurality of the second electrodes with each other.Type: GrantFiled: March 27, 2014Date of Patent: February 9, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kwan-Hyun Cho, Jin-Koo Chung, Jun-Ho Choi