Patents by Inventor Joong-Won Sim

Joong-Won Sim 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: 9224966
    Abstract: An organic light-emitting device including: a substrate; a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; and an electron transport layer between the emission layer and the second electrode, wherein the emission layer includes a blue emission layer, the electron transport layer includes a unit that includes a first single layer including a first material, a first mixed layer on the first single layer and including the first material and a second material, a second single layer on the first mixed layer and including the second material, a second mixed layer on the second single layer and including the first and second materials, and a third single layer on the second mixed layer and including the first material, wherein the first mixed layer has a thickness that is larger than that of the second mixed layer.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: December 29, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joong-Won Sim, Kwan-Hee Lee, Ji-Hwan Yoon, Ja-Hyun Im
  • Patent number: 9196859
    Abstract: An organic light-emitting device and a flat panel device, the organic light-emitting device including a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer, the emission layer including at least one N-doping layer.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: November 24, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joong-Won Sim, Kwan-Hee Lee, Byung-Hoon Chun
  • Publication number: 20150008394
    Abstract: An organic light emitting diode (OLED) display includes a substrate, a thin film transistor formed on the substrate, a first electrode formed on the thin film transistor and electrically connected to the thin film transistor, a hole injection layer (HIL) formed on the first electrode, a hole transport layer (HTL) formed on the hole injection layer (HIL), an emission layer formed on the HTL, an electron transport layer (ETL) formed on the emission layer, a first buffer layer located on the ETL, and a second electrode formed on the first buffer layer.
    Type: Application
    Filed: December 5, 2013
    Publication date: January 8, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Il-Soo OH, Chang-Ho Lee, Ji-Hwan Yoon, Dae-Yup Shin, Hee-Joo Ko, Se-Jin Cho, Jin-Young Yun, Bora Lee, Yeon-Woo Lee, Beom-Joon Kim, Pyung-Eun Jeon, Hyun-Ju Choi, Joong-Won Sim, In-Jae Lee
  • Publication number: 20140367653
    Abstract: An organic light-emitting device and a flat panel device, the organic light-emitting device including a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer, the emission layer including at least one N-doping layer.
    Type: Application
    Filed: December 10, 2013
    Publication date: December 18, 2014
    Inventors: Joong-Won SIM, Kwan-Hee Lee, Byung-Hoon Chun
  • Patent number: 8709837
    Abstract: A deposition apparatus includes: a deposition source including a spray nozzle linearly arranged in a first direction and discharging a deposition material; and a pair of angle control members disposed at both sides of the deposition source and controlling a discharging direction angle of the deposition material. Each angle control member includes a rotation axis parallel to the first direction, and a plurality of shielding plates installed about the rotation axis and separated from each other by a predetermined interval around the rotation axis. Although the deposition angle is changed according to the increasing of the process time, the deposition angle is compensated to form a uniform thin film. Also, the organic thin film may be uniformly deposited through each pixel of an organic light emitting diode (OLED) display, thereby increasing luminance uniformity for each pixel.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: April 29, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ja-Hyun Im, Kwan-Hee Lee, Ji-Hwan Yoon, Joong-Won Sim, Tae-Kwang Sung
  • Publication number: 20130323868
    Abstract: A deposition apparatus includes: a deposition source including a spray nozzle linearly arranged in a first direction and discharging a deposition material; and a pair of angle control members disposed at both sides of the deposition source and controlling a discharging direction angle of the deposition material. Each angle control member includes a rotation axis parallel to the first direction, and a plurality of shielding plates inst7lled about the rotation axis and separated from each other by a predetermined interval around the rotation axis. Although the deposition angle is changed according to the increasing of the process time, the deposition angle is compensated to form a uniform thin film. Also, the organic thin film may be uniformly deposited through each pixel of an organic light emitting diode (OLED) display, thereby increasing luminance uniformity for each pixel.
    Type: Application
    Filed: November 1, 2012
    Publication date: December 5, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ja-Hyun Im, Kwan-Hee Lee, Ji-Hwan Yoon, Joong-Won Sim, Tae-Kwang Sung
  • Publication number: 20130112949
    Abstract: An organic light-emitting device including: a substrate; a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; and an electron transport layer between the emission layer and the second electrode, wherein the emission layer includes a blue emission layer, the electron transport layer includes a unit that includes a first single layer including a first material, a first mixed layer on the first single layer and including the first material and a second material, a second single layer on the first mixed layer and including the second material, a second mixed layer on the second single layer and including the first and second materials, and a third single layer on the second mixed layer and including the first material, wherein the first mixed layer has a thickness that is larger than that of the second mixed layer.
    Type: Application
    Filed: July 6, 2012
    Publication date: May 9, 2013
    Inventors: Joong-Won Sim, Kwan-Hee Lee, Ji-Hwan Yoon, Ja-Hyun Im