Patents by Inventor Mi-Yeon Cho

Mi-Yeon Cho 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: 20250228113
    Abstract: A display device includes: a substrate; a pixel circuit layer on the substrate; anode electrodes on the pixel circuit layer; a pixel defining layer on a portion of the anode electrodes and the pixel circuit layer, and having a recessed shape in a direction of the substrate between the anode electrodes, wherein the recessed shape is arranged along a circumference of each of the anode electrodes; a light emitting structure on the anode electrodes and the pixel defining layer and including a plurality of light generation layers; a cathode electrode on the light emitting structure; and a reflective layer overlapping the recessed shape and located between the light emitting structure and the pixel circuit layer.
    Type: Application
    Filed: December 19, 2024
    Publication date: July 10, 2025
    Inventors: Mi Yeon CHO, Dae Ho SONG, Eun Ho SONG, Seok Hyun LIM
  • Patent number: 12352954
    Abstract: A head mounted display device is provided. The head mounted display device includes a left eye display unit which displays an image for a left eye and is disposed along a trajectory of a left eye ellipse having a first eccentricity, and a left eye lens which faces the left eye display unit and refracts the image for the left eye in a direction of a user's left eye.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: July 8, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min Seong Yi, Jae Wook Kang, Il Hun Seo, Yun Mo Chung, Mi Yeon Cho
  • Publication number: 20250101568
    Abstract: A method of fabricating a deposition mask includes: preparing a silicon on insulator (SOI) substrate including an upper silicon substrate, a lower silicon substrate, and an insulating layer between the upper silicon substrate and the lower silicon substrate; forming a mask membrane having a plurality of openings by patterning the upper silicon substrate; forming a first protective layer on the upper silicon substrate and a second protective layer on the lower silicon substrate; forming a cell opening by patterning the lower silicon substrate; and removing the first protective layer and the second protective layer.
    Type: Application
    Filed: June 10, 2024
    Publication date: March 27, 2025
    Inventors: Jae Been LEE, Mi Yeon CHO, Dae Ho SONG, Ju Won YOON, Yea Hwane CHOI
  • Publication number: 20250048843
    Abstract: According to an embodiment, a display device may include a semiconductor wafer substrate, a complementary metal oxide semiconductor (CMOS) circuit layer disposed on the semiconductor wafer substrate, and a light emitting element layer disposed on the CMOS circuit layer. The light emitting element layer may include a pixel defining film partitioning a plurality of pixels, a pixel electrode disposed independently in each of the plurality of pixels, an aging wiring disposed between the plurality of pixels, a light emitting layer commonly covering the pixel electrodes of each of the plurality of pixels and the aging wiring, and a common electrode covering the light emitting layer. A portion positioned between the aging wiring and the common electrode of the light emitting layer may include an aged portion in which at least a portion of a conductive layer included in the light emitting layer is aged.
    Type: Application
    Filed: May 22, 2024
    Publication date: February 6, 2025
    Inventors: Seok Hyun LIM, Mi Yeon CHO, Eun Ho SONG, Ju Won YOON, Jae Been LEE
  • Publication number: 20240373697
    Abstract: A display device includes: a substrate; a first pixel electrode and a second pixel electrode on the substrate; a dummy pixel electrode between the first pixel electrode and the second pixel electrode, and to receive a dummy voltage; an emissive layer on the first pixel electrode, the second pixel electrode, and the dummy pixel electrode; and a common electrode on the emissive layer. The first pixel electrode is to receive a pixel voltage different from the dummy voltage.
    Type: Application
    Filed: April 9, 2024
    Publication date: November 7, 2024
    Inventors: Seok Hyun LIM, Ju Hoon KANG, Hyung Keun PARK, Eun Ho SONG, Sang Hee JANG, Joo Hee JEON, Mi Yeon CHO, Gun Hee KIM, Dae Ho SONG, Sun Young JUNG
  • Publication number: 20220357573
    Abstract: A head mounted display device is provided. The head mounted display device includes a left eye display unit which displays an image for a left eye and is disposed along a trajectory of a left eye ellipse having a first eccentricity, and a left eye lens which faces the left eye display unit and refracts the image for the left eye in a direction of a user's left eye.
    Type: Application
    Filed: July 11, 2022
    Publication date: November 10, 2022
    Inventors: Min Seong YI, Jae Wook KANG, Il Hun SEO, Yun Mo CHUNG, Mi Yeon CHO
  • Patent number: 11385459
    Abstract: A head mounted display device is provided. The head mounted display device includes a left eye display unit which displays an image for a left eye and is disposed along a trajectory of a left eye ellipse having a first eccentricity, and a left eye lens which faces the left eye display unit and refracts the image for the left eye in a direction of a user's left eye.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: July 12, 2022
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Min Seong Yi, Jae Wook Kang, Il Hun Seo, Yun Mo Chung, Mi Yeon Cho
  • Publication number: 20200400942
    Abstract: A head mounted display device is provided. The head mounted display device includes a left eye display unit which displays an image for a left eye and is disposed along a trajectory of a left eye ellipse having a first eccentricity, and a left eye lens which faces the left eye display unit and refracts the image for the left eye in a direction of a user's left eye.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Inventors: Min Seong YI, Jae Wook KANG, Il Hun SEO, Yun Mo CHUNG, Mi Yeon CHO
  • Patent number: 10795153
    Abstract: A head mounted display device is provided. The head mounted display device includes a left eye display unit which displays an image for a left eye and is disposed along a trajectory of a left eye ellipse having a first eccentricity, and a left eye lens which faces the left eye display unit and refracts the image for the left eye in a direction of a user's left eye.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min Seong Yi, Jae Wook Kang, Il Hun Seo, Yun Mo Chung, Mi Yeon Cho
  • Publication number: 20180373026
    Abstract: A head mounted display device is provided. The head mounted display device includes a left eye display unit which displays an image for a left eye and is disposed along a trajectory of a left eye ellipse having a first eccentricity, and a left eye lens which faces the left eye display unit and refracts the image for the left eye in a direction of a user's left eye.
    Type: Application
    Filed: May 17, 2018
    Publication date: December 27, 2018
    Inventors: Min Seong YI, Jae Wook KANG, Il Hun SEO, Yun Mo CHUNG, Mi Yeon CHO
  • Patent number: 9741784
    Abstract: An organic light emitting display device includes a substrate including a plurality of pixel areas, each of the plurality of pixel areas including a light emitting region and a transmission region, a first electrode disposed on the light emitting region of the substrate, a second electrode opposing the first electrode, an organic light emitting layer which is disposed on the light emitting region of the substrate and disposed between the first electrode and the second electrode, and an auxiliary electrode which is disposed on the transmission region of the substrate and electrically connected to the second electrode.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: August 22, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Eon-Seok Oh, Sang-Yeol Kim, Byeong-Min Jang, Mi-Yeon Cho
  • Publication number: 20160211316
    Abstract: An organic light emitting display device includes a substrate including a plurality of pixel areas, each of the plurality of pixel areas including a light emitting region and a transmission region, a first electrode disposed on the light emitting region of the substrate, a second electrode opposing the first electrode, an organic light emitting layer which is disposed on the light emitting region of the substrate and disposed between the first electrode and the second electrode, and an auxiliary electrode which is disposed on the transmission region of the substrate and electrically connected to the second electrode.
    Type: Application
    Filed: July 9, 2015
    Publication date: July 21, 2016
    Inventors: Eon-Seok OH, Sang-Yeol KIM, Byeong-Min JANG, Mi-Yeon CHO
  • Patent number: 7605596
    Abstract: A probe card, an apparatus and a method of inspecting an object. In the example method, a first inspection current may be divided into a plurality of first divided inspection currents. Each of the first divided inspection currents may be supplied to a different one of a plurality of first chips. A second inspection current may be selectively applied to a second chip other than the first plurality of chips. In an example, the second inspection current may be substantially equal to at least one of the plurality of first divided inspection currents. In a further example, the example probe card and/or the apparatus may perform the example method.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: October 20, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yang-Gi Kim, Sang-Kyu Yoo, Byung-Soo Moon, Mi-Yeon Cho
  • Publication number: 20070046303
    Abstract: A probe card, an apparatus and a method of inspecting an object. In the example method, a first inspection current may be divided into a plurality of first divided inspection currents. Each of the first divided inspection currents may be supplied to a different one of a plurality of first chips. A second inspection current may be selectively applied to a second chip other than the first plurality of chips. In an example, the second inspection current may be substantially equal to at least one of the plurality of first divided inspection currents. In a further example, the example probe card and/or the apparatus may perform the example method.
    Type: Application
    Filed: August 28, 2006
    Publication date: March 1, 2007
    Inventors: Yang-Gi Kim, Sang-Kyu Yoo, Byung-Soo Moon, Mi-Yeon Cho