Patents by Inventor Sang-Ji Park

Sang-Ji Park 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: 11061268
    Abstract: A display device and a method of manufacturing a display device, the display device having a plurality of pixels defined therein and including: a first substrate; a partition wall disposed on the first substrate to define openings corresponding to the plurality of pixels; and color conversion patterns disposed in the openings. The partition wall includes a light-transmitting structure having a groove and a first partition wall portion disposed in the groove and having a higher optical density than the light-transmitting structure.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: July 13, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Ji Park, Kang Uk Kim, Hae Ju Yun, Don Chan Cho, Young Je Cho
  • Patent number: 10802341
    Abstract: A color conversion panel for a display device includes: a substrate including a first region, a second region, and a third region; a light-blocking partition disposed on the substrate and having a plurality of openings via which the first region, the second region and the third region are exposed; color conversion patterns disposed on the substrate in the openings in the first region and in the second region, respectively; and a light-transmitting layer containing scattering particles and including a first portion disposed in the opening in the third region and a second portion disposed to cover the color conversion patterns on the substrate. The scattering particles increase the efficiency of color conversion, such that color gamut may be increased.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: October 13, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang Uk Kim, Sang Ji Park, Hae Ju Yun
  • Publication number: 20190025634
    Abstract: A display device and a method of manufacturing a display device, the display device having a plurality of pixels defined therein and including: a first substrate; a partition wall disposed on the first substrate to define openings corresponding to the plurality of pixels; and color conversion patterns disposed in the openings. The partition wall includes a light-transmitting structure having a groove and a first partition wall portion disposed in the groove and having a higher optical density than the light-transmitting structure.
    Type: Application
    Filed: November 28, 2017
    Publication date: January 24, 2019
    Inventors: Sang Ji PARK, Kang Uk KIM, Hae Ju YUN, Don Chan CHO, Young Je CHO
  • Publication number: 20190025655
    Abstract: A color conversion panel for a display device includes: a substrate including a first region, a second region, and a third region; a light-blocking partition disposed on the substrate and having a plurality of openings via which the first region, the second region and the third region are exposed; color conversion patterns disposed on the substrate in the openings in the first region and in the second region, respectively; and a light-transmitting layer containing scattering particles and including a first portion disposed in the opening in the third region and a second portion disposed to cover the color conversion patterns on the substrate. The scattering particles increase the efficiency of color conversion, such that color gamut may be increased.
    Type: Application
    Filed: January 25, 2018
    Publication date: January 24, 2019
    Inventors: Kang Uk KIM, Sang Ji PARK, Hae Ju YUN
  • Publication number: 20190018286
    Abstract: A display device and a method for manufacturing the same. A display device includes: a first substrate; a partition wall which is disposed on the first substrate to define a first space and includes a top portion and side portions extending from the top portion; a reflective layer which covers the top portion and the side portions; an organic layer which is disposed on the reflective layer to overlap the top portion and has liquid repellency; and a wavelength conversion layer which is disposed in the first space.
    Type: Application
    Filed: February 7, 2018
    Publication date: January 17, 2019
    Inventors: Kang Uk Kim, Jung Suk Bang, Sang Ji Park, Don Chan Cho
  • Patent number: 10011102
    Abstract: A surfactant includes a hydrophobic functional group, a hydrophilic functional group and a linker disposed between the hydrophobic functional group and the hydrophilic functional group. The linker is connected to the hydrophobic functional group and the hydrophilic functional group. The linker has a cleavable bond with a bond energy lower than a bond energy of a bond included in the hydrophilic functional group and a bond included in the hydrophobic functional group.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: July 3, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Sung-Chan Jo, Jae-Cheol Park, Sang-Ji Park, Hye-Young Park, Yiying Jia, Min-Jeong Oh, Hee-June Kwak
  • Patent number: 9874675
    Abstract: The present invention provides a quantum dot panel, including: a first substrate; a plurality of first cavities formed on the first substrate, so that adjacent ones of the cavities are separated from each other; a first roof layer covering the cavities so as to at least partially define the cavities; quantum dots contained in the first cavities; and a distribution layer in which the quantum dots are distributed and which is disposed within the first cavities. The quantum dot panel according to exemplary embodiments of the present invention includes quantum dots contained within predetermined structures formed on the substrate, thereby improving reliability of the quantum dot panel and simplifying the manufacturing process thereof.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: January 23, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Don Chan Cho, Nam Seok Roh, Yu Jin Kim, Sang Ji Park
  • Patent number: 9798176
    Abstract: Provided is a display device including a display unit and a mirror unit adjacent to each other, in which the display unit includes a first substrate, a thin film transistor formed on the substrate, a pixel electrode connected to the thin film transistor, a roof layer formed on the pixel electrode to be spaced apart from the pixel electrode with a microcavity therebetween, and a liquid crystal layer filling the microcavity, and the mirror unit includes a second substrate, a first electrode formed on the second substrate, a second electrode formed on the first substrate to be spaced apart from the first electrode with a microcavity therebetween, and an electrochromic layer formed in the microcavity.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: October 24, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Yeon Choi, Sang Ji Park, Byung-Gon Kum
  • Patent number: 9716832
    Abstract: Provided are an apparatus and method for outputting a stabilized image even when a camera sways. The method includes: applying a first compensated motion to the image to acquire a first stabilized image, wherein an accumulation result of first motions, each of which is estimated between adjacent images from a reference image to an arbitrary image, is inversely transformed into the first compensated motion; and acquiring a second motion estimated between the reference image and the first stabilized image and applying the accumulation result of the first motions and a second compensated motion to the image to acquire a second stabilized image. An accumulation result of the second motion is inversely transformed into the second compensated motion.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: July 25, 2017
    Assignee: Hanwha Techwin Co., Ltd.
    Inventors: Yeon-Geol Ryu, Hwal-Suk Lee, Sang-Ji Park
  • Patent number: 9563077
    Abstract: Provided is a liquid crystal display, including: an insulating substrate, the insulating substrate includes a center region and an edge region surrounding the center region; a roof layer formed on the insulating substrate, and configured to support a plurality of separated microcavities; a pixel electrode formed on the insulating substrate, and formed in the microcavity supported by the roof layer; and a liquid crystal layer positioned within the microcavity, in which the roof layer includes an opening for injecting a liquid crystal into the plurality of microcavities, and the opening in the center region has a substantially uniform size, and the opening in the edge region is smaller than the opening in the center region.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: February 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Ji Park, Hee-Keun Lee, Soo Jung Lee, Ji Yeon Choi
  • Publication number: 20160299377
    Abstract: Provided is a display device including a display unit and a mirror unit adjacent to each other, in which the display unit includes a first substrate, a thin film transistor formed on the substrate, a pixel electrode connected to the thin film transistor, a roof layer formed on the pixel electrode to be spaced apart from the pixel electrode with a microcavity therebetween, and a liquid crystal layer filling the microcavity, and the mirror unit includes a second substrate, a first electrode formed on the second substrate, a second electrode formed on the first substrate to be spaced apart from the first electrode with a microcavity therebetween, and an electrochromic layer formed in the microcavity.
    Type: Application
    Filed: March 2, 2016
    Publication date: October 13, 2016
    Inventors: Ji Yeon CHOI, Sang Ji PARK, Byung-Gon KUM
  • Publication number: 20160291364
    Abstract: The present disclosure provides a liquid crystal display including: a substrate, a thin film transistor formed on the substrate, a pixel electrode connected to the thin film transistor, a roof layer formed to face the pixel electrode, a liquid crystal layer formed between the pixel electrode and the roof layer and formed of a plurality of microcavities, and a capping layer positioned on the roof layer and formed to cover a trench formed between the plurality of microcavities, in which the capping layer includes a water-soluble polymer material, a photosensitive material, and a moisture-curable adhesive.
    Type: Application
    Filed: March 2, 2016
    Publication date: October 6, 2016
    Inventors: Sang Ji PARK, Ho Yun BYUN, Byung-Gon KUM, Ji Yeon CHOI
  • Patent number: 9438804
    Abstract: Provided are a device and method for removing distortion in a photographed image. The method includes estimating a parameter set indicative of an amount of distortion in an input image by a local motion vector between a reference image and the input image, and reconstructing the input image by using the estimated parameter set.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: September 6, 2016
    Assignee: Hanwha Techwin Co., Ltd.
    Inventors: Yeon Geol Ryu, Sang Ji Park, Hwal Suk Lee
  • Publication number: 20160209572
    Abstract: The present invention provides a quantum dot panel, including: a first substrate; a plurality of first cavities formed on the first substrate, so that adjacent ones of the cavities are separated from each other; a first roof layer covering the cavities so as to at least partially define the cavities; quantum dots contained in the first cavities; and a distribution layer in which the quantum dots are distributed and which is disposed within the first cavities. The quantum dot panel according to exemplary embodiments of the present invention includes quantum dots contained within predetermined structures formed on the substrate, thereby improving reliability of the quantum dot panel and simplifying the manufacturing process thereof.
    Type: Application
    Filed: November 3, 2015
    Publication date: July 21, 2016
    Inventors: Don Chan CHO, Nam Seok ROH, Yu Jin KIM, Sang Ji PARK
  • Patent number: 9202128
    Abstract: An image stabilizing apparatus for correcting an image which is shaken due to a movement of a camera. The image stabilizing apparatus includes an image adjusting unit that includes: an image analyzing unit which compares an image frame currently input with a reference image, and if the currently input image frame is shaken, extracts a representative direction and a representative magnitude of the shaking; and an image moving unit which moves the currently input image frame by the representative magnitude in a direction opposite to the representative direction.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: December 1, 2015
    Assignee: Hanwha Techwin Co., Ltd.
    Inventors: Je-Youl Chon, Sang-Ji Park, Ju-Han Bae
  • Publication number: 20150160506
    Abstract: Provided is a liquid crystal display, including: an insulating substrate, the insulating substrate includes a center region and an edge region surrounding the center region; a roof layer formed on the insulating substrate, and configured to support a plurality of separated microcavities; a pixel electrode formed on the insulating substrate, and formed in the microcavity supported by the roof layer; and a liquid crystal layer positioned within the microcavity, in which the roof layer includes an opening for injecting a liquid crystal into the plurality of microcavities, and the opening in the center region has a substantially uniform size, and the opening in the edge region is smaller than the opening in the center region.
    Type: Application
    Filed: July 15, 2014
    Publication date: June 11, 2015
    Inventors: Sang Ji PARK, Hee-Keun LEE, Soo Jung LEE, Ji Yeon CHOI
  • Patent number: 9047673
    Abstract: A target extracting apparatus and method for extracting a target through probability modeling of pixel brightness values in an image, and a recording medium storing a program for performing the method, are disclosed. The method includes extracting a background image from an input image, modeling brightness values of the input image and the background image based on a Gaussian distribution to generate an input image modeling result and a background image modeling result, calculating likelihood ratios for determining whether a pixel in the input image corresponds to a target based on a correlation between the input image modeling result and the background image modeling result and target templates having different sizes; determining a location of the target based on the calculated likelihood ratios; and outputting the determined location of the target.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: June 2, 2015
    Assignee: SAMSUNG TECHWIN CO., LTD.
    Inventors: Hwal-suk Lee, Sang-ji Park
  • Patent number: 9036033
    Abstract: Provided are a digital image processing apparatus which corrects a position of each of a plurality of template motion vectors of an image frame of a captured image by considering relative positions of neighboring motion vectors respectively similar to each of the template motion vectors, calculates a score of each of the template motion vectors by considering a number of the neighboring motion vectors, and selects a global motion vector representing the image frame based on the score, and a method of estimating a global motion of an image to stabilize the captured image using the global motion.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: May 19, 2015
    Assignee: SAMSUNG TECHWIN CO., LTD.
    Inventors: Hwal-suk Lee, Sang-Ji Park
  • Patent number: 9007472
    Abstract: An image stabilizing apparatus and method for correcting an image that is shaken due to a movement of a camera is provided. The image stabilizing apparatus includes a reference image setting unit including: a sample frame extract unit which extracts a plurality of image frames taken for a certain period of time from image data generated by photographing an object; and a reference frame extract unit which the plurality of image frames with one another to extract a most stabilized image frame and set the extracted image frame as a reference image frame.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: April 14, 2015
    Assignee: Samsung Techwin Co., Ltd.
    Inventors: Sang-Ji Park, Je-Youl Chon, Ju-Han Bae
  • Patent number: D923062
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: June 22, 2021
    Assignee: HANKUK CHAIN INDUSTRIAL CO., LTD.
    Inventor: Sang Ji Park