Patents by Inventor Heung Su Park

Heung Su 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).

  • Publication number: 20230389402
    Abstract: A display device includes a light emitting device disposed on a substrate, a capping layer disposed on the light emitting device, and an encapsulation layer disposed on the capping layer. The capping layer includes a first surface facing the encapsulation layer, the first surface of the capping layer includes a protrusion protruding toward the encapsulation layer, and a height of the protrusion is greater than or equal to about 600 angstroms in a cross-sectional view.
    Type: Application
    Filed: April 6, 2023
    Publication date: November 30, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: JONGWON LEE, SEUNG CHEOL KIM, Heung Su PARK, Chang-Min LEE, Hyun Shik LEE
  • Publication number: 20230038628
    Abstract: A light emitting device includes: a first electrode; a second electrode overlapping the first electrode; m light emitting units between the first electrode and the second electrode; and m-1 charge generating layers between adjacent light emitting units, wherein the charge generating layer includes: an n-type charge generating layer and a p-type charge generating layer; at least one of a plurality of n-type charge generating layers includes a dopant including an alkali metal, and at least one of a plurality of n-type charge generating layers includes a dopant including a lanthanum metal; contents of the alkali metal and the lanthanum metal doped in the n-type charge generating layer are different from each other; and the m is a natural number of greater than or equal to 3.
    Type: Application
    Filed: June 6, 2022
    Publication date: February 9, 2023
    Inventors: Won Suk HAN, Nam Su KANG, Heung Su PARK, Hui Ju PARK, Song Eun LEE, Hyun Shik LEE, Jae Hoon HWANG
  • Patent number: 11056667
    Abstract: A display device includes: a first base substrate which comprises a plurality of pixels; a pixel electrode on the first base substrate in each of the pixels and comprises a reflective film; an organic layer on the pixel electrode; and a common electrode on the organic layer, wherein the pixel electrode has a reflectance of 80% or more for light in a first wavelength range of 420 nm to 470 nm.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: July 6, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung Ho Choi, Nam Su Kang, Yi Seul Kim, Heung Su Park, Hyun Shik Lee, Heun Seung Lee, Jae Hoon Hwang
  • Patent number: 10985220
    Abstract: A light emitting display device includes a substrate having a first pixel, a second pixel, a third pixel, and an infrared emission portion. The first, second, and third pixels emit light of different colors. The light emitting device also includes a first electrode on the substrate, a second electrode overlapping the first electrode, an emission layer between the first electrode and the second electrode, and an auxiliary layer between the first electrode and the emission layer. The auxiliary layer includes a first auxiliary layer on the first pixel and a second auxiliary layer in the infrared emission portion. The first auxiliary layer and second auxiliary layer include a same material.
    Type: Grant
    Filed: July 14, 2019
    Date of Patent: April 20, 2021
    Inventors: Sang Woo Lee, Heung Su Park, Ji Hwan Yoon, Jae Hoon Hwang
  • Publication number: 20200185638
    Abstract: A display device includes: a first base substrate which comprises a plurality of pixels; a pixel electrode on the first base substrate in each of the pixels and comprises a reflective film; an organic layer on the pixel electrode; and a common electrode on the organic layer, wherein the pixel electrode has a reflectance of 80% or more for light in a first wavelength range of 420 nm to 470 nm.
    Type: Application
    Filed: November 26, 2019
    Publication date: June 11, 2020
    Inventors: Jung Ho CHOI, Nam Su KANG, Yi Seul KIM, Heung Su PARK, Hyun Shik LEE, Heun Seung LEE, Jae Hoon HWANG
  • Publication number: 20190341434
    Abstract: A light emitting display device includes a substrate having a first pixel, a second pixel, a third pixel, and an infrared emission portion. The first, second, and third pixels emit light of different colors. The light emitting device also includes a first electrode on the substrate, a second electrode overlapping the first electrode, an emission layer between the first electrode and the second electrode, and an auxiliary layer between the first electrode and the emission layer. The auxiliary layer includes a first auxiliary layer on the first pixel and a second auxiliary layer in the infrared emission portion. The first auxiliary layer and second auxiliary layer include a same material.
    Type: Application
    Filed: July 14, 2019
    Publication date: November 7, 2019
    Inventors: Sang Woo Lee, Heung Su Park, Ji Hwan Yoon, Jae Hoon Hwang
  • Patent number: 10388706
    Abstract: A light emitting display device includes a substrate having a first pixel, a second pixel, a third pixel, and an infrared emission portion. The first, second, and third pixels emit light of different colors. The light emitting device also includes a first electrode on the substrate, a second electrode overlapping the first electrode, an emission layer between the first electrode and the second electrode, and an auxiliary layer between the first electrode and the emission layer. The auxiliary layer includes a first auxiliary layer on the first pixel and a second auxiliary layer in the infrared emission portion. The first auxiliary layer and second auxiliary layer include a same material.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: August 20, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Woo Lee, Heung Su Park, Ji Hwan Yoon, Jae Hoon Hwang
  • Publication number: 20180261655
    Abstract: A light emitting display device includes a substrate having a first pixel, a second pixel, a third pixel, and an infrared emission portion. The first, second, and third pixels emit light of different colors. The light emitting device also includes a first electrode on the substrate, a second electrode overlapping the first electrode, an emission layer between the first electrode and the second electrode, and an auxiliary layer between the first electrode and the emission layer. The auxiliary layer includes a first auxiliary layer on the first pixel and a second auxiliary layer in the infrared emission portion. The first auxiliary layer and second auxiliary layer include a same material.
    Type: Application
    Filed: October 19, 2017
    Publication date: September 13, 2018
    Inventors: Sang Woo LEE, Heung Su PARK, Ji Hwan YOON, Jae Hoon HWANG
  • Publication number: 20120330353
    Abstract: The present disclosure relates to a method of manufacturing a biodegradable surgical suture with a distal end shaped like a loop by using a twist braider. The surgical suture enables a doctor to easily tie the suture with a knot in a bodily region through which a needle passes after the needle passes through a bodily incision to be sutured once without making the knot.
    Type: Application
    Filed: April 15, 2011
    Publication date: December 27, 2012
    Applicant: META BIOMED CO., LTD.
    Inventors: Yeon Chun Yoo, Heung Su Park, Joon Hyung Kim, Joon Sub Chon, Do Kyoung Lee, Jae Woon Choi