Patents Assigned to Korea University Research and Business Foundation, Sejong Campus
  • Patent number: 11076481
    Abstract: A stretchable substrate according to an embodiment of the present invention comprises a first modulus region which has a first modulus, a second modulus region which is located in a plane direction with respect to the first modulus region and has a second modulus higher than the first modulus, and a third modulus region which is located between the first modulus region and the second modulus region and has an interface modulus which gradually changes between the first modulus and the second modulus, wherein the interface modulus of the third modulus region may be constant in the thickness direction thereof.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: July 27, 2021
    Assignee: Korea University Research and Business Foundation, Sejong Campus
    Inventors: Sang Il Kim, Mun Pyo Hong, Bo Sung Kim, Ho Won Yoon, Kyung Uk Ha, Yun O Im
  • Patent number: 11073721
    Abstract: A display device according to an embodiment of the present invention comprises: a first substrate to which external light is applied; a first and a second control electrode disposed on the first substrate, the second control electrode being spaced apart from the first control electrode; an insulating film disposed on the first and the second control electrode; a first and a second contact electrode formed on the insulation film, wherein the first contact electrode at least partially overlaps the first control electrode, and the second contact electrode is spaced apart from the first contact electrode and at least partially overlaps the second control electrode; a shuttering operation body moving between the first and the second contact electrode so as to transmit or block light; a second substrate opposite to the first substrate; and a quantum dot film disposed on the first or the second substrate and adjusting the wavelength of light passing through the shuttering operation body.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: July 27, 2021
    Assignee: Korea University Research and Business Foundation, Sejong Campus
    Inventors: Mun Pyo Hong, Sang II Kim, Ho Won Yoon, Yun Seong Jang
  • Patent number: 11073794
    Abstract: A holographic display apparatus capable of providing an expanded viewing window and a display method are provided. The holographic display apparatus includes an image processor configured to provide computer generated hologram (CGH) data to a spatial light modulator, wherein the image processor is further configured to generate a hologram data array comprising information of the holographic image to be reproduced at the first resolution or a resolution less than the first resolution, perform an off-axis phase computation on the hologram data array at the second resolution, and then, generate the CHG data at the first resolution.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: July 27, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., Korea University Research and Business Foundation, Sejong Campus
    Inventors: Hoon Song, Hwi Kim, Jungkwuen An, Hongseok Lee, Yunhee Kim, Chilsung Choi
  • Publication number: 20210220809
    Abstract: Provided is a carbon dioxide reduction composite catalyst, comprising an organic-inorganic porous body, and a molecular reduction catalyst combined with the organic-inorganic porous body, wherein the organic-inorganic porous body includes metal oxide clusters, and a light-condensing organic material as linkers between the metal oxide clusters, and the linkers absorb visible light to form excitons, and move the excitons through energy transfer between the linkers to transfer the electrons of the excitons to the molecular reduction catalyst.
    Type: Application
    Filed: February 25, 2021
    Publication date: July 22, 2021
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SEJONG CAMPUS
    Inventors: Ho Jin SON, Sang Ook KANG, Sung Han CHOI, Chul Hoon KIM
  • Publication number: 20210181678
    Abstract: Provided is a holographic display apparatus capable of providing an expanded viewing window when reproducing a holographic image via an off-axis technique. The holographic display apparatus includes a spatial light modulator comprising a plurality of pixels arranged two-dimensionally; and an aperture enlargement film configured to enlarge a beam diameter of a light beam coming from each of the plurality of pixels of the spatial light modulator. The beam diameter of each light beam enlarged by the aperture enlargement film may be greater than the width of an aperture of each pixel of the spatial light modulator.
    Type: Application
    Filed: September 3, 2020
    Publication date: June 17, 2021
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Korea University Research and Business Foundation, Sejong Campus
    Inventors: Yunhee KIM, Hwi KIM, Hoon SONG, Soobin KIM, Hongseok LEE
  • Patent number: 10989859
    Abstract: A display apparatus includes a light guide member disposed below a display member. A light source configured to generate light is disposed adjacent to the light guide member. The light guide member includes a plurality of diffraction on the light guide member. The diffraction patterns are spaced apart from each other in the first direction. The plurality of diffraction patterns diffract incident light, which is incident at an incident angle, to change the incident light to diffraction light having a diffraction angle. The incident angle is defined as an angle between the incident light and a normal line that is perpendicular to a top surface or a bottom surface of the light guide member. The diffraction angle, which is defined as an angle between the diffraction light and the normal line, has a magnitude less than that of the incident angle.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: April 27, 2021
    Assignees: SAMSUNG DISPLAY CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SEJONG CAMPUS
    Inventors: Seungin Baek, Sujin Choi, Hwi Kim, Mira Gwon, Youngeun Park, Jongha Park, Junghwan Yi, Young jin Jeon, Jungbeom Choi, Younho Han
  • Publication number: 20210097902
    Abstract: A method of manufacturing a stretchable display according to an embodiment of the present invention includes preparing a process carrier substrate, forming a flexible substrate on the process carrier substrate, forming a light emitting layer and a driving element controlling the light emitting layer on the flexible substrate, and attaching a stretchable film divided into a low stretchable area and a high stretchable area such that at least a part of the low stretchable area covers at least a part of the driving element in a state in which the high stretchable area is stretched.
    Type: Application
    Filed: November 23, 2020
    Publication date: April 1, 2021
    Applicant: Korea University Research and Business Foundation, Sejong Campus
    Inventors: Mun Pyo Hong, Sang Il Kim, Ho Won Yoon, Jeong Sik Yoon
  • Patent number: 10910232
    Abstract: A copper plasma etching method according an exemplary embodiment includes: placing a substrate on a susceptor in a process chamber of a plasma etching apparatus; supplying an etching gas that include hydrogen chloride into the process chamber; plasma-etching a conductor layer that include copper in the substrate; and maintaining a temperature of the susceptor at 10° C. or less during the plasma-etching.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: February 2, 2021
    Assignees: SAMSUNG DISPLAY CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SEJONG CAMPUS
    Inventors: Sang Gab Kim, MunPyo Hong, Hyun Min Cho, Seong Yong Kwon, Ho Won Yoon
  • Publication number: 20210026298
    Abstract: A holographic display apparatus capable of providing an expanded viewing window and a display method are provided. The holographic display apparatus includes an image processor configured to provide computer generated hologram (CGH) data to a spatial light modulator, wherein the image processor is further configured to generate a hologram data array comprising information of the holographic image to be reproduced at the first resolution or a resolution less than the first resolution, perform an off-axis phase computation on the hologram data array at the second resolution, and then, generate the CHG data at the first resolution.
    Type: Application
    Filed: January 2, 2020
    Publication date: January 28, 2021
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Korea University Research and Business Foundation, Sejong Campus
    Inventors: Hoon SONG, Hwi KIM, Jungkwuen AN, Hongseok LEE, Yunhee KIM, Chilsung CHOI
  • Patent number: 10889794
    Abstract: The present invention relates to an apparatus that uses shadow images of cells to continuously measure cell activity at a high processing rate in order to provide cell activity and cell number results. According to one embodiment of the present invention, instead of a highly experienced examiner or technician using a microscope, ELISA reader, etc. having to collect various cell activity measurements and cell numbers, the collection of said information can be automated so as to reduce cost and largely reduce errors in measurements through the development of computer software coupled with hardware using low cost and compact optoelectronic components and simple image processing techniques.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: January 12, 2021
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SEJONG CAMPUS
    Inventors: Sung-Kyu Seo, Geon-Soo Jin, Un-Hwan Ha, Se-Hwan Paek, Seung-Pil Pack
  • Patent number: 10890675
    Abstract: Provided are a system and method for processing a beam position monitor signal using an analog-to-digital converter (ADC) sampler corresponding to an analog part and an FPGA corresponding to a digital signal processing part. The ADC sampler measures signal intensity through an optimization of an ADC sampling rate and bits using a radio frequency (RF) switch and a low noise amplifier (LNA), and converts an analog signal into a digital signal. The FPGA extracts only an optimized harmonic signal among multiple harmonic signals of the digital signal converted by the ADC sampler, through a digital band pass filter; and performs beam position measurement, beam phase measurement and relative beam current measurement on the extracted digital signal through a digital circuit.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 12, 2021
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SEJONG CAMPUS
    Inventors: Siwon Jang, Eun-San Kim
  • Publication number: 20200389158
    Abstract: Disclosed is a semiconductor device and a clock system including a pulse laser-based clock distribution network. The semiconductor device includes a current pulse generator that generates a current pulse train based on a first optical pulse train and a second optical pulse train, a clock distribution network that outputs a clock based on the current pulse train, a CDN detector that detects at least one of status information of the clock distribution network and the output clock to generate detection information, and control logic that generates a control signal for regulating a current of the current pulse train based on the detection information.
    Type: Application
    Filed: November 19, 2019
    Publication date: December 10, 2020
    Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SEJONG CAMPUS
    Inventors: Jungwon KIM, Hayun Cecillia CHUNG
  • Publication number: 20200350898
    Abstract: A low-jitter digital clock signal generating system which uses optical pulses output from a pulse laser includes a first balanced photodetector that converts first and second optical pulses with a delayed time interval into first and second electrical pulses through first and second photodiodes and outputs first and second modulated pulses generated by allowing the first and second electrical pulses to partially overlap each other, a second balanced photodetector that converts third and fourth optical pulses with the delayed time interval into third and fourth electrical pulses through third and fourth photodiodes, and outputs a second modulated pulse generated by allowing the third and fourth electrical pulses to partially overlap each other, and a capacitor. The capacitor is charged by the first modulated pulse, is discharged by the second modulated pulse, and outputs a voltage according to the charging and discharging as a clock signal.
    Type: Application
    Filed: February 26, 2020
    Publication date: November 5, 2020
    Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SEJONG CAMPUS
    Inventors: Jungwon Kim, Hayun Cecilla Chung, Minji Hyun, Yongjin Na
  • Publication number: 20200340037
    Abstract: The present invention relates to a method for preparing a DNA oligomer into which a single nucleotide is incorporated using a terminal deoxynucleotidyl transferase. According to the present invention, by using a base hydrolysis reaction or a ribose-borate complex formation method, single incorporation of normal and modified nucleotides in a TdT enzyme-based DNA oligomer modification method can be facilitated. In addition, the method simultaneously provides the usability of TdT and the quantitativeness of modification group incorporation, thereby being effectively usable in the development of a quantitative detection technique or in a crosslinking reaction, both of which require quantitativeness and, according to the present invention, a DNA oligomer, into which a single nucleotide which is a product of a TdT reaction is incorporated, has an exposed a 3? hydroxyl terminus, which is an enzyme recognition site, such that an additional enzymatic technique such as primer extension or ligation can be introduced.
    Type: Application
    Filed: October 12, 2018
    Publication date: October 29, 2020
    Applicant: Korea University Research and Business Foundation, Sejong Campus
    Inventors: Seung Pil PACK, Eui Kyoung JANG
  • Patent number: 10809319
    Abstract: The present invention relates to a device and a method for measuring a magnetic field, wherein a spin current is injected into a magnetic body that has magnetic anisotropy using a spin Hall effect occurring in a current applied to a conductor, and the degree of shift of hysteresis in the magnetic body is calculated while reversing the magnetization of the magnetic body by a spin torque such that an external magnetic field applied to the magnetic body can be measured precisely.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: October 20, 2020
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SEJONG CAMPUS
    Inventors: Kung-Won Rhie, Dong-Seok Kim, Sung-Jung Joo
  • Patent number: 10799861
    Abstract: Disclosed is a biochemical-immunological hybrid biosensor. The biochemical-immunological hybrid biosensor includes a reaction strip in the form of a porous membrane through which a sample moves by capillary action. The reaction strip can simultaneously measure heterogeneous multiple biomarkers through both a biochemical analysis and an immunoassay in an independent manner based on membrane chromatography to diagnose a particular disease.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: October 13, 2020
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SEJONG CAMPUS
    Inventor: Se-Hwan Paek
  • Publication number: 20200318007
    Abstract: The present invention relates to a method for producing a core-shell structure including a CdSe core based on a glyme solvent. The method of the present invention enables the production of a core-shell structure including a CdSe core in a simple and economical manner. The present invention also relates to a core-shell structure including a CdSe core produced by the method. The core-shell structure of the present invention includes a large amount of CdSe and is uniform in size. Particularly, the core-shell structure of the present invention can be coated on a flexible plastic substrate of an optical device or semiconductor device due to its high stability.
    Type: Application
    Filed: May 19, 2017
    Publication date: October 8, 2020
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SEJONG CAMPUS
    Inventors: Seung Jun YI, Sang Ook KANG, Ho-Jin SON
  • Publication number: 20200301361
    Abstract: A method for processing a three-dimensional holographic image includes obtaining depth images from depth data of a three-dimensional object, dividing each of the depth images into a predetermined number of sub-images, obtaining interference patterns of computer-generated hologram (CGH) patches corresponding to each of the sub-images by performing a Fourier transform to calculate an interference pattern in a CGH plane for object data included in each of the sub-images, and generating a CGH for the three-dimensional object using the obtained interference patterns of the CGH patches.
    Type: Application
    Filed: February 3, 2020
    Publication date: September 24, 2020
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Korea University Research and Business Foundation, Sejong Campus
    Inventors: Hoon Song, Hwi Kim, Jongha Park, Hojung Kim, Yongkyu Kim
  • Publication number: 20200304345
    Abstract: A differential signal processing device is described which includes an encoder configured to encode input data into one or more differential signals and a transmitter configured to sequentially transmit the one or more differential signals using a plurality of transmission lines. The encoder converts a plurality of bits, corresponding to a transmission time interval, among the input data into an encoding code array in the transmission time interval obtained by increasing an encoding unit time, encoded for each of the one or more differential signals, by an integer multiple.
    Type: Application
    Filed: March 13, 2020
    Publication date: September 24, 2020
    Applicant: Korea University Research and Business Foundation, Sejong Campus
    Inventors: CHULWOO KIM, Yeonho Lee, Jonghyuck Choi
  • Publication number: 20200283364
    Abstract: The present invention relates to a gingerol derivative having inhibitory activity against biofilm formation and a pharmaceutical composition for preventing or treating infections caused by biofilms including the gingerol derivative as an active ingredient. The gingerol derivative of the present invention exhibits significantly improved binding affinity for LasR and inhibitory activity against biofilm formation. Therefore, the gingerol derivative of the present invention can act on various membrane surfaces where biofilms tend to form and can effectively inhibit the formation of the corresponding biofilms. In addition, the use of the pharmaceutical composition according to the present invention can fundamentally prevent or treat a variety of infections caused by biofilms due to the presence of the gingerol derivative in the pharmaceutical composition.
    Type: Application
    Filed: July 19, 2018
    Publication date: September 10, 2020
    Applicants: Korea University Research and Business Foundation, Sejong Campus, Korea University Research and Business Foundation
    Inventors: Youngjoo BYUN, Hee-Deung PARK, Sang-Hyun SON, Eunji CHA, So-Young HAM, Hyunsuk CHOI