Patents by Inventor Youn Chul Oh

Youn Chul Oh 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: 8477125
    Abstract: An organic light-emitting display includes a substrate, a thin film transistor on the substrate, an organic light-emitting diode electrically connected to the thin film transistor, and a photo sensor having a plurality of photo diodes connected to one another in parallel.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: July 2, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye Hyang Park, Byoung Deog Choi, Sun A Yang, Youn Chul Oh, Eun Jung Lee, Won Seok Kang
  • Patent number: 7994517
    Abstract: An organic light emitting display device includes a substrate, a thin film transistor having a gate insulating layer and an inter-insulating layer, an organic light emitting diode electrically connected with the thin film transistor, and a photo sensor, wherein the gate insulating layer includes a relief structure positioned above the photo sensor.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: August 9, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Sun A Yang, Youn Chul Oh, Eun Jung Lee, Won Seok Kang
  • Patent number: 7872288
    Abstract: An organic light-emitting display device includes a substrate, a first buffer layer and a second buffer layer on the substrate, a thin film transistor on the second buffer layer, an organic light-emitting diode electrically connected with the thin film transistor, and a photo sensor with an intrinsic region on the second buffer layer, wherein the photo sensor is capable of absorbing red light from the organic light-emitting diode and of exhibiting quantum efficiency of from about 50% to about 90%.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: January 18, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Sun A Yang, Youn Chul Oh, Eun Jung Lee, Won Seok Kang
  • Publication number: 20080170014
    Abstract: An organic light emitting display and a method of correcting images thereof prevents the occurrence of excessive pixel aging, burning and image sticking caused by loading effect and includes: a loading effect measuring unit to measure a luminance according to a level at which an image signal having an equal gray scale value is loaded into a display panel of the organic light emitting display; an average loading level calculating unit to calculate a loading level at which the luminance averages; a loading effect compensating unit to compensate the power supply voltage corresponding to the image signal to obtain a luminance equal to the luminance at the average loading level; and a power supply control unit to control the power supply voltage to supply the compensated power supply voltage to the display panel of the organic light emitting display.
    Type: Application
    Filed: June 13, 2007
    Publication date: July 17, 2008
    Inventors: Jin Woung Jung, Sun A Yang, Eun Jung Lee, Su Young Kim, Youn Chul Oh, Hye Hyang Park
  • Publication number: 20070285411
    Abstract: An organic light emitting display device includes a substrate, a thin film transistor having a gate insulating layer and an inter-insulating layer, an organic light emitting diode electrically connected with the thin film transistor, and a photo sensor, wherein the gate insulating layer includes a relief structure positioned above the photo sensor.
    Type: Application
    Filed: March 8, 2007
    Publication date: December 13, 2007
    Inventors: Sun A Yang, Youn Chul Oh, Eun Jung Lee, Won Seok Kang
  • Publication number: 20070285942
    Abstract: An organic light-emitting display device includes a substrate, a first buffer layer and a second buffer layer on the substrate, a thin film transistor on the second buffer layer, an organic light-emitting diode electrically connected with the thin film transistor, and a photo sensor with an intrinsic region on the second buffer layer, wherein the photo sensor is capable of absorbing red light from the organic light-emitting diode and of exhibiting quantum efficiency of from about 50% to about 90%.
    Type: Application
    Filed: March 8, 2007
    Publication date: December 13, 2007
    Inventors: Sun A. Yang, Youn Chul Oh, Eun Jung Lee, Won Seok Kang
  • Publication number: 20070257254
    Abstract: An organic light-emitting display device, includes a substrate, a thin film transistor on the substrate, a passivation layer on the thin film transistor, an organic light-emitting diode on the passivation layer and electrically connected to the thin film transistor, a photo sensor between the substrate and the organic light-emitting diode, and a light blocking layer on the passivation layer.
    Type: Application
    Filed: March 28, 2007
    Publication date: November 8, 2007
    Inventors: Sun-a Yang, Youn-chul Oh, Eun-jung Lee, Won-seok Kang
  • Patent number: 6129845
    Abstract: A photo-oxidation device of a water treatment system photo-oxidizes organic material, in particular, aromatic organic material, in the water to facilitate its removal from the water. The photo-oxidation device includes a UV lamp, a flow channel in which the UV lamp is disposed, and a catalyst of an oxidation reaction between an organic material and the UV radiation emitted by the UV lamp. The UV radiation emitted from the UV lamp illuminates the flow channel while the water passes through the flow channel. The catalyst, on the other hand, is fixed to an inner wall of the flow channel to foster the oxidation of the organic material by the UV radiation. The water treatment system in which the photo-oxidation device is incorporated, includes a pre-treatment unit having particle filters, a first treatment section, and a second treatment section.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: October 10, 2000
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sue-ryeon Kim, Hyeon-jun Kim, Youn-chul Oh, Seung-un Kim