Patents by Inventor Tae-Hyung Hwang

Tae-Hyung Hwang 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: 11495642
    Abstract: A display panel including a lower display substrate including a light emitting element configured to generate source light, and an upper display substrate including first, second, and third pixel areas and a peripheral area adjacent thereto, in which the upper display substrate includes a base substrate, a first partition pattern disposed on a bottom surface of the base substrate, overlaps with the peripheral area, and has first, second, and third openings corresponding to the first, second, and third pixel areas, respectively, first, second, and third color filters disposed on the bottom surface of the base substrate and overlapping with the first, second, and third pixel areas, respectively, first, second, and third color control layers disposed on the first, second, and third color filters, respectively, and an encapsulation inorganic layer covering the second color control layer and exposing at least one of the first and third color control layers.
    Type: Grant
    Filed: May 10, 2020
    Date of Patent: November 8, 2022
    Assignee: Samsung Display Co., LTD.
    Inventors: Jeongki Kim, Jeaheon Ahn, Seongyeon Lee, Si-Wan Jeon, Tae Hyung Hwang
  • Patent number: 11456338
    Abstract: Disclosed are display panels and methods of manufacturing substrates. The display panel comprises a lower display substrate that includes a plurality of light emitting elements, and an upper display substrate that includes a color control layer and is on the lower display substrate. The color control layer includes a plurality of walls each of which includes a wall base including an organic material and a reflective layer including a metallic material, and the color control layer also includes a plurality of color control parts which are disposed between the plurality of walls and at least one of which includes a quantum dot. The reflective layer surrounds at least a portion of a sidewall of the wall base, which results in an increase in luminous efficiency and an improvement in brightness.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: September 27, 2022
    Inventors: Seon Uk Lee, Kanguk Kim, Sanggab Kim, Donchan Cho, Tae Hyung Hwang, KyeongSu Ko, Sungwon Cho
  • Publication number: 20210384271
    Abstract: A display device includes a first light emitting element on a first substrate and overlapping a first effective pixel area; test light emitting elements on the first substrate and overlapping the test pixel area; a first color filter on a second substrate and overlapping the first light emitting element; a first wavelength conversion pattern on the first color filter and overlapping the first color filter and the first light emitting element; a first test color filter on the second substrate and overlapping one of the test light emitting elements; and a first test wavelength conversion pattern on the second substrate and overlapping another one of the test light emitting elements. The first test wavelength conversion pattern and the first wavelength conversion pattern include a same first wavelength conversion material, and the first test color filter and the first color filter include a same first color colorant.
    Type: Application
    Filed: January 25, 2021
    Publication date: December 9, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Jea Heon AHN, Jeong Ki KIM, Seong Yeon LEE, Si Wan JEON, Tae Hyung HWANG
  • Publication number: 20210318474
    Abstract: A display device includes: a substrate, where a first pixel area, a second pixel area, and a third pixel area which are defined on the substrate; and a plurality of light blocking members disposed on the substrate between the pixel areas. The light blocking members include a plurality of first light blocking members continuously extends along a first direction between the first, second and third pixel areas, and a second light blocking member disposed along a second direction perpendicular to the first direction, the second light blocking member is disposed between neighboring third pixel areas which neighbor each other in the first direction, and a width of the first light blocking member and a width of the second light blocking member are substantially the same as each other.
    Type: Application
    Filed: April 1, 2021
    Publication date: October 14, 2021
    Inventors: Si-Wan JEON, Jeong Ki KIM, Jea Heon AHN, Myoung Jong LEE, Seok-Joon HONG, Tae Hyung HWANG
  • Publication number: 20210249477
    Abstract: A display device includes a lower substrate, a plurality of pixels, an upper substrate, a light blocking member, first and second color filters, first and second color conversion patterns, and a light blocking pattern. The light blocking pattern is disposed between the first and second color conversion patterns, and includes a first portion and a second portion which overlaps the light blocking member. A shape the second portion is different from a shape of the first portion.
    Type: Application
    Filed: January 24, 2021
    Publication date: August 12, 2021
    Inventors: Seok-Joon HONG, Jang-Il Kim, Tae Hyung Hwang
  • Publication number: 20210111363
    Abstract: A color-converting substrate including light-emitting areas and a light blocking area surrounding the light-emitting areas, the light-emitting areas including first light-emitting areas configured to emit a first color light, a partition wall including a first opening continuously overlapping the first light-emitting areas and a first portion of the light-blocking area disposed between the first light-emitting areas, a first color-converting layer including a wavelength-converting material and disposed in the first opening to overlap the first light-emitting areas and the first portion of the light-blocking area, and a color filter layer including a portion configured to block the first color light, the color filter layer overlapping the first color-converting layer and the first portion of the light-blocking area.
    Type: Application
    Filed: July 28, 2020
    Publication date: April 15, 2021
    Inventors: Tae Hyung HWANG, Jiseong YANG, Seon Uk LEE
  • Publication number: 20210036063
    Abstract: In a color conversion panel including pixel areas emitting a light having a same color and a non-pixel area between the pixel areas, the color conversion panel may include a substrate, a light shielding pattern disposed on the substrate in the non-pixel area, a color conversion layer disposed on the substrate, covering the light shielding pattern, and configured to convert an incident light, a height of a first portion of the color conversion layer corresponding to the non-pixel area from the substrate being less than each of heights of second portions of the color conversion layer respectively corresponding to the pixel areas from the substrate, and a light shielding partition wall disposed on the color conversion layer in the non-pixel area.
    Type: Application
    Filed: June 8, 2020
    Publication date: February 4, 2021
    Inventors: Jang-Il KIM, Jeongki KIM, Myoungjong LEE, Tae Hyung HWANG
  • Publication number: 20210005671
    Abstract: A display panel including a lower display substrate including a light emitting element configured to generate source light, and an upper display substrate including first, second, and third pixel areas and a peripheral area adjacent thereto, in which the upper display substrate includes a base substrate, a first partition pattern disposed on a bottom surface of the base substrate, overlaps with the peripheral area, and has first, second, and third openings corresponding to the first, second, and third pixel areas, respectively, first, second, and third color filters disposed on the bottom surface of the base substrate and overlapping with the first, second, and third pixel areas, respectively, first, second, and third color control layers disposed on the first, second, and third color filters, respectively, and an encapsulation inorganic layer covering the second color control layer and exposing at least one of the first and third color control layers.
    Type: Application
    Filed: May 10, 2020
    Publication date: January 7, 2021
    Inventors: Jeongki Kim, Jeaheon Ahn, Seongyeon Lee, Si-Wan Jeon, Tae Hyung Hwang
  • Publication number: 20200373359
    Abstract: Disclosed are display panels and methods of manufacturing substrates. The display panel comprises a lower display substrate that includes a plurality of light emitting elements, and an upper display substrate that includes a color control layer and is on the lower display substrate. The color control layer includes a plurality of walls each of which includes a wall base including an organic material and a reflective layer including a metallic material, and the color control layer also includes a plurality of color control parts which are disposed between the plurality of walls and at least one of which includes a quantum dot. The reflective layer surrounds at least a portion of a sidewall of the wall base, which results in an increase in luminous efficiency and an improvement in brightness.
    Type: Application
    Filed: April 16, 2020
    Publication date: November 26, 2020
    Inventors: Seon Uk LEE, Kanguk KIM, SANGGAB KIM, DONCHAN CHO, TAE HYUNG HWANG, KyeongSu KO, Sungwon CHO
  • Publication number: 20200321524
    Abstract: In a device for fabricating a display panel, the device includes: an inkjet printer including a plurality of nozzles configured to discharge an ink to effective areas of the display panel for each of a plurality of scan times; a discharge amount detection sensor configured to detect ink discharge amounts corresponding to the plurality of nozzles, respectively; and a controller configured to: generate a plurality of ink distributions based on shift values of the plurality of nozzles for the effective areas at each of the scan times and the ink discharge amounts; select a first ink distribution discharging the ink to a first effective area during a first scan time; and select a second ink distribution discharging the ink to a second effective area based on the first ink distribution during a second scan time after the first scan time.
    Type: Application
    Filed: February 21, 2020
    Publication date: October 8, 2020
    Inventors: Tae Hyung HWANG, Donchan CHO
  • Publication number: 20200117046
    Abstract: A display device is provided. The display device comprises a first substrate, a second substrate facing the first substrate, a first polarizing layer disposed between the first substrate and the second substrate and including first line grid patterns, a light scattering layer disposed between the first polarizing layer and the second substrate, and color filter layers disposed between the light scattering layer and the second substrate.
    Type: Application
    Filed: July 10, 2019
    Publication date: April 16, 2020
    Inventors: Tae Hyung HWANG, Dong Il SON
  • Patent number: 10473971
    Abstract: A color conversion display panel according to an exemplary embodiment includes a transmission layer disposed on a substrate, a color conversion layer disposed on the substrate and including at least one of a quantum dot and a phosphor, a wire grid pattern disposed on the color conversion layer and the transmission layer, and a reflection pattern connected to a part of the wire grid pattern and disposed between the color conversion layer and the transmission layer disposed adjacent to the color conversion layer.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: November 12, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon Uk Lee, Sung Man Kim, Han Jun Yu, Seong Su Lim, Kyung Tae Chae, Tae Hyung Hwang
  • Patent number: 10417978
    Abstract: A liquid-crystal display device is provided. The liquid-crystal display device includes super-pixels, each of the super-pixels including a first pixel, a second pixel and a third pixel arranged in a first row, and a fourth pixel arranged in a second row, and first and second data lines extending in a column direction, wherein a width of the fourth pixel is equal to a sum of widths of the first to third pixels, each of the first to fourth pixels is connected to one of the first and second data lines, each of the first data lines is disposed adjacent to one side of the first pixel, and each of the second data lines is disposed between the second pixel and the third pixel.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: September 17, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Man Kim, Jun Ho Song, Tae Hyung Hwang
  • Patent number: 10401676
    Abstract: A method of manufacturing a wire grid polarizer for a display apparatus includes the steps of forming a first layer on a base substrate including an active area and a peripheral area surrounding the active area, forming a hard mask layer on the first layer, coating an imprint resin on the hard mask layer, forming an imprint resin pattern by imprinting a stamp on the imprint resin, wherein the stamp is larger than the base substrate, forming a hard mask pattern by patterning the hard mask layer using the imprint resin pattern, forming a wire grid pattern layer by pattering the first layer using the hard mask pattern, forming a photoresist pattern in the active area on the base substrate, removing the hard mask pattern and the wire grid pattern layer in the peripheral area using the photoresist pattern, and forming a capping layer on the wire grid pattern.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: September 3, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sungman Kim, Junho Song, Hanjun Yu, Seon Uk Lee, Seongsu Lim, Tae Hyung Hwang
  • Patent number: 10274780
    Abstract: A liquid crystal display according to an exemplary embodiment of the invention includes: a first type pixel including first liquid crystal molecules aligned approximately in a first direction; a second type pixel including second liquid crystal molecules aligned approximately in a second direction different from the first direction; a first lower polarizer disposed opposite to the first type pixel and having a transmissive axis approximately parallel to the first direction; and a second lower polarizer disposed opposite to the second type pixel and having a transmissive axis approximately parallel to the second direction.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: April 30, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Won Ho Kim, Tae Hyung Hwang, Young Jin Park, Seong Su Lim, Young Je Cho
  • Patent number: 10133138
    Abstract: A display device may include a pixel electrode, a transistor, a first gate line, a second gate line, and a third gate line. The transistor may be electrically connected to the pixel electrode. The first gate line may be electrically connected to the transistor. The second gate line may extend not parallel to the first gate line. The third gate line may overlap the pixel electrode and may extend not parallel to the first gate line. The second gate line or the third gate line may be electrically connected to the first gate line. The pixel electrode may be partially positioned between the second gate line and the third gate line in a plan view of the display device.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: November 20, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hwa Yeul Oh, Sung Man Kim, Min Chul Song, Seong Su Lim, Tae Hyung Hwang
  • Patent number: 10001638
    Abstract: An electrowetting display device includes first and second barrier layers which cover first and second electrodes. The electrowetting display device includes a first base substrate which faces a second base substrate, the first electrode on the first base substrate, the first barrier layer which covers the first electrode, the second electrode on the second base substrate, the second barrier layer which covers the second electrode, a barrier wall between the first base substrate and the second base substrate, and an electrowetting layer between the first base substrate and the second base substrate. The barrier wall defines a pixel area corresponding to the first electrode, and the electrowetting layer is in the pixel area. The electrowetting layer includes a polar fluid and a non-polar fluid which are separated from each other.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: June 19, 2018
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Tae Woo Lim, Keunkyu Song, Jihoon Yang, Tae Hyung Hwang
  • Publication number: 20180101056
    Abstract: A color conversion display panel according to an exemplary embodiment includes a transmission layer disposed on a substrate, a color conversion layer disposed on the substrate and including at least one of a quantum dot and a phosphor, a wire grid pattern disposed on the color conversion layer and the transmission layer, and a reflection pattern connected to a part of the wire grid pattern and disposed between the color conversion layer and the transmission layer disposed adjacent to the color conversion layer.
    Type: Application
    Filed: April 20, 2017
    Publication date: April 12, 2018
    Inventors: Seon Uk Lee, Sung Man Kim, Han Jun Yu, Seong Su Lim, Kyung Tae Chae, Tae Hyung Hwang
  • Publication number: 20180101058
    Abstract: A method of manufacturing a wire grid polarizer for a display apparatus includes the steps of forming a first layer on a base substrate including an active area and a peripheral area surrounding the active area, forming a hard mask layer on the first layer, coating an imprint resin on the hard mask layer, forming an imprint resin pattern by imprinting a stamp on the imprint resin, wherein the stamp is larger than the base substrate, forming a hard mask pattern by patterning the hard mask layer using the imprint resin pattern, forming a wire grid pattern layer by pattering the first layer using the hard mask pattern, forming a photoresist pattern in the active area on the base substrate, removing the hard mask pattern and the wire grid pattern layer in the peripheral area using the photoresist pattern, and forming a capping layer on the wire grid pattern.
    Type: Application
    Filed: October 3, 2017
    Publication date: April 12, 2018
    Inventors: Sungman KIM, Junho SONG, Hanjun YU, Seon Uk LEE, Seongsu LIM, Tae Hyung HWANG
  • Patent number: 9910326
    Abstract: A liquid crystal display device includes a pixel electrode that includes a first central portion and a first stem portion and sequentially disposed on one side of a reference line extending in a first direction, and a second central portion and a second stem portion sequentially disposed on the other side, where the first stem portion extends at a first oblique angle in which a center line of a line width has a positive sign with respect to the first direction, the first central portion extends from one end of the first stem portion and has a shape in which a center line of the line width is inclined at a second oblique angle having a positive sign with respect to the first direction, and a line width of the first central portion is smaller than the line width of the first stem portion.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: March 6, 2018
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Ji Eun Lee, Sung Man Kim, Won Ho Kim, Tae Hyung Hwang