Patents by Inventor Dan Bi CHOI

Dan Bi CHOI 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: 10256430
    Abstract: An organic light emitting device includes a substrate. An organic light emitting diode is disposed on the substrate. A thin film encapsulation layer is disposed over the organic light emitting diode. The thin film encapsulation layer includes at least one organic layer. An organic passivation layer is disposed directly on the thin film encapsulation layer. The organic passivation layer has a smaller Young's modulus than the organic layer of the thin film encapsulation layer.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: April 9, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Khachatryan Hayk, Ki Hyun Kim, Sun Ho Kim, Jeong Ho Kim, Tae Woong Kim, Dan Bi Choi
  • Patent number: 9941311
    Abstract: Disclosed herein is a flexible display device, including: a substrate that comprises a first surface and a second surface which is an opposite surface to the first surface; a light-emitting device disposed on the first surface; a reduction layer disposed on the second surface; and a barrier layer disposed between the second surface and the reduction layer.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: April 10, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Khachatryan Hayk, Ki Hyun Kim, Sun Ho Kim, Jeong Ho Kim, Tae Woong Kim, Yeon Gon Mo, Dan Bi Choi
  • Publication number: 20170222176
    Abstract: An organic light emitting device includes a substrate. An organic light emitting diode is disposed on the substrate. A thin film encapsulation layer is disposed over the organic light emitting diode. The thin film encapsulation layer includes at least one organic layer. An organic passivation layer is disposed directly on the thin film encapsulation layer. The organic passivation layer has a smaller Young's modulus than the organic layer of the thin film encapsulation layer.
    Type: Application
    Filed: January 19, 2017
    Publication date: August 3, 2017
    Inventors: KHACHATRYAN HAYK, KI HYUN KIM, SUN HO KIM, JEONG HO KIM, TAE WOONG KIM, DAN BI CHOI
  • Publication number: 20170125453
    Abstract: Disclosed herein is a flexible display device, including: a substrate that comprises a first surface and a second surface which is an opposite surface to the first surface; a light-emitting device disposed on the first surface; a reduction layer disposed on the second surface; and a barrier layer disposed between the second surface and the reduction layer.
    Type: Application
    Filed: September 20, 2016
    Publication date: May 4, 2017
    Inventors: Khachatryan HAYK, Ki Hyun KIM, Sun Ho Kim, Jeong Ho KIM, Tae Woong KIM, Yeon Gon MO, Dan Bi CHOI
  • Patent number: 9372379
    Abstract: A thin film transistor substrate, a method for fabricating the same, and a display device including the same are provided. In one aspect of the present invention, there is provided a thin film transistor substrate comprising a substrate, a semiconductor layer formed on the substrate, a gate insulating film formed on the semiconductor layer, a gate electrode formed on the gate insulating film, an interlayer insulating film formed on the gate electrode and including a source contact hole and a drain contact hole for exposing portions of the semiconductor layer, and a source electrode and a drain electrode respectively inserted into the source contact hole and the drain contact hole. The interlayer insulating film includes a first convex portion formed at an inlet of the source contact hole and at an inlet of the drain contact hole.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: June 21, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dan Bi Choi, Jung Hun Lee
  • Patent number: 9123777
    Abstract: A method for fabricating a micro electro device includes forming a conductive pattern on a substrate, forming an organic insulating film on a whole surface of the substrate with an organic insulating material to cover the conductive pattern, preparing a printing plate coated with an insulating film removing material, and forming a contact hole by removing a first portion of the organic insulating film through making the insulating film removing material come in contact with the first portion of the organic insulating film that corresponds to the conductive pattern, and forming a contact in the contact hole.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: September 1, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dan Bi Choi, Jung Hun Lee, Sun Ho Kim
  • Publication number: 20150029429
    Abstract: A thin film transistor substrate, a method for fabricating the same, and a display device including the same are provided. In one aspect of the present invention, there is provided a thin film transistor substrate comprising a substrate, a semiconductor layer formed on the substrate, a gate insulating film formed on the semiconductor layer, a gate electrode formed on the gate insulating film, an interlayer insulating film formed on the gate electrode and including a source contact hole and a drain contact hole for exposing portions of the semiconductor layer, and a source electrode and a drain electrode respectively inserted into the source contact hole and the drain contact hole. The interlayer insulating film includes a first convex portion formed at an inlet of the source contact hole and at an inlet of the drain contact hole.
    Type: Application
    Filed: December 20, 2013
    Publication date: January 29, 2015
    Inventors: Dan Bi CHOI, Jung Hun LEE
  • Publication number: 20140231762
    Abstract: A method for fabricating a micro electro device includes forming a conductive pattern on a substrate, forming an organic insulating film on a whole surface of the substrate with an organic insulating material to cover the conductive pattern, preparing a printing plate coated with an insulating film removing material, and forming a contact hole by removing a first portion of the organic insulating film through making the insulating film removing material come in contact with the first portion of the organic insulating film that corresponds to the conductive pattern, and forming a contact in the contact hole
    Type: Application
    Filed: September 4, 2013
    Publication date: August 21, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dan Bi CHOI, Jung Hun LEE, Sun Ho KIM