Patents by Inventor Chan Oh

Chan Oh 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).

  • Patent number: 11453803
    Abstract: Disclosed is a semi-hardened pressure sensitive adhesive film to be used in the semi-hardened state and having excellent printing step absorption properties. The adhesive film according to the present invention contains a radial polymer composition and a cationic polymer composition, and the radial polymer composition is primarily cross-linked to maintain the semi-hardened state. When applied onto a substrate through a printing step, the present invention has excellent step absorption properties and adhesion properties and excellent durability even under high-temperature and high-humidity conditions.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: September 27, 2022
    Inventors: Min-Seok Song, Chan-Oh Yoon, Eun-Kyung Park, Bu-Gi Jung, Jang-Soon Kim
  • Patent number: 11380133
    Abstract: A domain adaptation-based object recognition apparatus includes a memory configured to store a domain adaptation-based object recognition program and a processor configured to execute the program. The processor learns a generative model for generating a feature or an image similar to a gallery image on the basis of domain adaptation in association with an input probe image and learns an object recognition classification model by using a learning database corresponding to the gallery image and the input probe image, thereby performing object recognition using the input probe image.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: July 5, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyung Il Kim, Yong Jin Kwon, Jin Young Moon, Jong Youl Park, Sung Chan Oh, Ki Min Yun, Jeun Woo Lee
  • Patent number: 11309360
    Abstract: A color conversion substrate includes a base on which first to third light outputting regions and a light shielding region surrounding the first to third light outputting regions are defined; first to third color filters on the base in the first to third light outputting regions, respectively; a first light shielding member on the first color filter in the light shielding region; a light transmission pattern on the first color filter; a first wavelength conversion pattern on the second color filter and which converts light of a first color into light of a second color; and a second wavelength conversion pattern on the third color filter and which converts the light of the first color into light of a third color. A first opening located in the light shielding region is defined in at least one of the light transmission pattern and the first and second wavelength conversion patterns.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: April 19, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun Kyu Joo, Byung Chul Kim, In Ok Kim, Jae Min Seong, In Seok Song, Keun Chan Oh, Gak Seok Lee, Ji Eun Jang, Chang Soon Jang
  • Patent number: 11289544
    Abstract: A display device is provided. A display device includes a plurality of pixels arranged in a row axis and in a column axis that intersects the row axis, a first substrate on which a light-emitting element disposed in each of the pixels is disposed, a second substrate which faces the first substrate, and a first wavelength conversion pattern disposed on the second substrate in a first pixel column and which converts wavelength of light emitted from the light-emitting element. The first wavelength conversion pattern includes a first main pattern part arranged in a stripe fashion along the column axis and a protruding pattern part projected from the first main pattern part toward at least one of first and second directions of the row axis.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: March 29, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun Kyu Joo, Keun Chan Oh, Byung Chul Kim, In Ok Kim, In Seok Song, Gak Seok Lee, Chang Soon Jang
  • Patent number: 11281045
    Abstract: Provided are a wavelength conversion layer and a display device. A color conversion element comprises: a wavelength conversion layer; one or more low refractive layers which are disposed on and/or under the wavelength conversion layer and have a lower refractive index than the wavelength conversion layer; and one or more capping layers which are disposed between the wavelength conversion layer and the low refractive layers and/or on a surface opposite to a surface of each of the low refractive layers which faces the wavelength conversion layer.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: March 22, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Taek Joon Lee, Young Gu Kim, Keun Chan Oh, Sun Young Chang, Hye Lim Jang, Baek Kyun Jeon, Jin Soo Jung, Kyung Seon Tak, Jae Jin Lyu, Moon Jung Baek
  • Publication number: 20220085334
    Abstract: A display device is provided. The display device comprises: a first substrate including a plurality of pixels; a second substrate opposite to the first substrate; and an optical path change layer disposed between the first and second substrates and including a first pattern portion and a second pattern portion, wherein the first pattern portion has a first refractive index and includes a blue colorant, and the second pattern portion has a second refractive index smaller than the first refractive index.
    Type: Application
    Filed: February 19, 2019
    Publication date: March 17, 2022
    Inventors: Keun Chan OH, Sun Kyu JOO
  • Publication number: 20220085114
    Abstract: A color transformation substrate comprises: a base portion having first and second light-blocking areas and first to third light-transmitting areas, where the light-transmitting areas are successively positioned along a first direction; first to third color filters positioned in the first to third light-transmitting areas, respectively; a light-blocking member positioned in the first light-blocking area, and including part contacting the base portion; a color pattern positioned in the second light-blocking area so as to contact the base portion; a first wavelength conversion pattern positioned on the second color filter so as to wavelength-convert light having a first color into light having a second color; and a second wavelength conversion pattern positioned on the third color filter so as to wavelength-convert light having the first color into light having a third color different from light having the second color. The color pattern and the first color filter comprise the same color material.
    Type: Application
    Filed: March 13, 2019
    Publication date: March 17, 2022
    Inventors: Jae Min SEONG, Keun Chan OH, Gak Seok LEE, Sun Kyu JOO, Byung Chul KIM, In Ok KIM, In Seok SONG, Ji Eun JANG, Chang Soon JANG
  • Patent number: 11264437
    Abstract: A display device includes a substrate, a thin film transistor provided on the substrate, a first electrode connected to the thin film transistor, a second electrode overlapping the first electrode, and a partition wall and a light-emitting device layer provided between the first electrode and the second electrode. The partition wall may include a main chain and a side chain connected to the main chain, and a carbon number of the side chain may be equal to or greater than 14.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: March 1, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk Hoon Kang, Hoi-Lim Kim, Min-Jae Kim, Beom-Soo Shin, Keun Chan Oh, Hong Yeon Lee
  • Publication number: 20220052121
    Abstract: Provided is a display device. The display device includes a first base portion, a second base portion facing the first base portion, a light emitting layer disposed on one surface of the first base portion and emitting first light, a first wavelength conversion pattern disposed on the light emitting layer and converting the first light into second light having a different wavelength from the first light, a first color filter overlapping the first wavelength conversion pattern on one surface of the second base portion and spaced apart from the first wavelength conversion pattern, and an air layer interposed between the first wavelength conversion pattern and the first color filter.
    Type: Application
    Filed: June 3, 2021
    Publication date: February 17, 2022
    Inventors: Chang Soon JANG, Keun Chan OH, Gak Seok LEE, Sang Hun LEE, So Yun LEE, Ji Eun JANG
  • Publication number: 20220036427
    Abstract: An electronic device including a display, a camera, and a processor is proposed. The processor may be set to activate the camera while outputting a content-playback screen on the display when a playback of content is requested, obtain a face-related image of a user by using the activated camera, extract eye-blink information, information on a change in outer corners of eyes and information on a change in corners of mouth from the face-related image, and calculate an immersion level of the user with the content on the basis of the eye-blink information, the information on the change in outer corners of eyes, and the information on the change in corners of mouth.
    Type: Application
    Filed: November 20, 2019
    Publication date: February 3, 2022
    Inventor: Dang Chan OH
  • Publication number: 20210384274
    Abstract: A display device includes a substrate including a light emitting area and a light blocking area that surrounds the light emitting area, and a bank structure disposed in the light blocking area and having an opening that corresponds to the light emitting area. The bank structure has a concave portion that is formed on an upper surface.
    Type: Application
    Filed: April 8, 2021
    Publication date: December 9, 2021
    Inventors: Jea Heon AHN, Keun Chan OH, Jeong Ki KIM, Jong-Hoon KIM, Ji Seong YANG
  • Publication number: 20210362757
    Abstract: A system for exclusive track resource sharing is provided. Some embodiments provide an exclusive track resource sharing system including onboard control units and a resource manager. Onboard control unit is provided in each of trains and is configured to communicate with another onboard control unit in another train. The resource manager is configured to record ownership status information of track resources of the plurality of trains, to provide the ownership status information of the track resources to the onboard control unit, and to generate and deliver a resource entitlement or resource authority to the onboard control unit. The resource authority is configured to be owned by a single onboard control unit. The onboard control unit possessing the resource authority is configured to seize or release the track resources corresponding to the resource authority and to control the track resources corresponding to the resource authority.
    Type: Application
    Filed: December 11, 2018
    Publication date: November 25, 2021
    Applicant: Korea Railroad Research Institute
    Inventors: Seh Chan OH, Jong Hyen BAEK, Hyeon Yeong CHOI, Byung Hun LEE
  • Patent number: 11182696
    Abstract: Embodiments of the present invention provide a method for detecting a temporal change of name associated with performance data. The method comprises receiving at least one candidate name replacement pair comprising a pair of names. The method further comprises, in a training stage, for each known name replacement pair included in the performance data, determining a window of time covering a most recent appearance of a first name of the known name replacement pair. The window of time is determined based on quantitative features of a time series model comprising performance data for the first name and a second name of the known name replacement pair. The method further comprises, in the training stage, training a machine learning classifier based on quantitative features computed using a portion of the performance data for the first name and the second name, where the portion is within the window of time determined.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: November 23, 2021
    Assignee: International Business Machines Corporation
    Inventors: Jeanette L. Blomberg, Anca A. Chandra, Pawan R. Chowdhary, Se Chan Oh, Hovey R. Strong, Jr., Suppawong Tuarob
  • Patent number: 11157853
    Abstract: Embodiments of the present invention provide a system, method and computer program product for forecasting a time series based on actuals and a plan. A method comprises generating a first and a second sequence of segments that rise and fall alternately based on a first and a second sequence of data values over time, respectively. The first and second sequence of data values represent actual data for an ongoing project and estimated data for a planned project, respectively. The method further comprises aligning at least one segment of the second sequence of segments with at least one segment of the first sequence of segments, and adjusting the estimated data by replacing at least one segment of the second sequence of segments with a scaled version of at least one corresponding aligned segment of the first sequence of segments. The scaled version maintains an estimated total for the planned project.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: October 26, 2021
    Assignee: International Business Machines Corporation
    Inventors: Jeanette L. Blomberg, Neil H. A. Boyette, Anca A. Chandra, Se Chan Oh, Hovey R. Strong, Jr.
  • Publication number: 20210311338
    Abstract: Provided are a wavelength conversion layer and a display device. A color conversion element comprises: a wavelength conversion layer; one or more low refractive layers which are disposed on and/or under the wavelength conversion layer and have a lower refractive index than the wavelength conversion layer; and one or more capping layers which are disposed between the wavelength conversion layer and the low refractive layers and/or on a surface opposite to a surface of each of the low refractive layers which faces the wavelength conversion layer.
    Type: Application
    Filed: June 16, 2021
    Publication date: October 7, 2021
    Inventors: Taek Joon LEE, Young Gu KIM, Keun Chan OH, Sun Young CHANG, Hye Lim JANG, Baek Kyun JEON, Jin Soo JUNG, Kyung Seon TAK, Jae Jin LYU, Moon Jung BAEK
  • Patent number: 11131889
    Abstract: A liquid crystal display device and a method of manufacturing a liquid crystal display device are provided. The liquid crystal display device includes: a base; an alignment inducing layer on the base and including a first compound represented by formula A1 or a polymer of the first compound; and a liquid crystal layer on the alignment inducing layer that includes liquid crystals: where R1 may be hydrogen or a polymerizable group, R2 may be a hydrophilic group, SP1 and SP2 may each independently be a single bond, a C1-C12 alkylene group, or a C1-C12 alkoxylene group, Z may be a single bond, an ester group, or an ether group, and X1, X2 and X3 may each independently be hydrogen, a methyl group, fluorine, or chlorine.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: September 28, 2021
    Assignees: Samsung Display Co., Ltd., Industrial Cooperation Foundation Chonbuk National University
    Inventors: Ho Lim, Shin Woong Kang, Keun Chan Oh, Jae Jin Lyu, Aboozar Nasrollahi, Vineet Kumar
  • Publication number: 20210256322
    Abstract: Provided is an apparatus for classifying an attribute of an image object, including: a first memory configured to store target object images that are indexed; a second memory configured to store target object images that are un-indexed; and an object attribute classification module configured to perform learning on the un-indexed target object images to construct a classifier for classifying a detailed attribute of target object, and finely adjust the classifier on the basis of the indexed target object images.
    Type: Application
    Filed: February 12, 2021
    Publication date: August 19, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jeun Woo LEE, Sung Chan OH
  • Patent number: 11091671
    Abstract: A high-refractive adhesive film includes: a thermosetting resin matrix; and high refractive particles dispersed in the thermosetting resin matrix. The refraction index of the high-refractive particles is higher than that of the thermosetting resin matrix.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: August 17, 2021
    Inventors: Chan-Oh Yoon, Sung-Chan Park, Jang-Soon Kim, Eun-Kyung Park, Bu-Gi Jung, Won-Ho Kim
  • Patent number: 11078422
    Abstract: An LCD panel, comprises substrates facing each other, a liquid crystal layer disposed between the substrates and liquid crystal alignment layers, each sandwiched between the liquid crystal layer and a respective one of the substrates, wherein the liquid crystal alignment layers comprises hydrocarbon derivative having perfluorocarbon group.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: August 3, 2021
    Inventors: Shin Woong Kang, Kundu Sudarshan, Byung Wook Ahn, Keun Chan Oh, Chang Hun Lee, Soon Joon Rho, Jae Jin Lyu
  • Patent number: 11042059
    Abstract: Provided are a wavelength conversion layer and a display device. A color conversion element comprises: a wavelength conversion layer; one or more low refractive layers which are disposed on and/or under the wavelength conversion layer and have a lower refractive index than the wavelength conversion layer; and one or more capping layers which are disposed between the wavelength conversion layer and the low refractive layers and/or on a surface opposite to a surface of each of the low refractive layers which faces the wavelength conversion layer.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: June 22, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Taek Joon Lee, Young Gu Kim, Keun Chan Oh, Sun Young Chang, Hye Lim Jang, Baek Kyun Jeon, Jin Soo Jung, Kyung Seon Tak, Jae Jin Lyu, Moon Jung Baek