Patents by Inventor Nam-deog Kim

Nam-deog Kim 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: 20080007492
    Abstract: An OLED display includes a pixel having a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel, each of which displays a different color, a gate line for transmitting gate signals to the pixel, a data line for transmitting data signals to the pixel, a first driving voltage line that transmits a driving voltage to the pixel and is substantially parallel to the data line, and a second driving voltage line that is connected to the first driving voltage line and is substantially parallel to the gate line.
    Type: Application
    Filed: November 17, 2006
    Publication date: January 10, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Byung-Sik Koh, Nam-Deog Kim, Beohm-Rock Choi, Kyeng-Eun Roh, Kwang-Chul Jung, Joon-Hoo Choi, Jong-Moo Huh, Seung-Kyu Park, Joon-Chul Goh, Young-Soo Yoon
  • Publication number: 20070278942
    Abstract: A display device includes; a thin film transistor formed on a insulating substrate, a pixel electrode electrically connected to the thin film transistor, an organic layer formed on the pixel electrode, a wall surrounding the organic layer, a reflective film formed on the wall, and a common electrode formed on the organic layer.
    Type: Application
    Filed: August 15, 2007
    Publication date: December 6, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Jae-hoon Jung, Nam-deog Kim
  • Patent number: 7288886
    Abstract: A display device includes; a thin film transistor formed on a insulating substrate, a pixel electrode electrically connected to the thin film transistor, an organic layer formed on the pixel electrode, a wall surrounding the organic layer, a reflective film formed on the wall, and a common electrode formed on the organic layer.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: October 30, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-hoon Jung, Nam-deog Kim
  • Publication number: 20070194316
    Abstract: A display apparatus includes; a switching transistor, a driving transistor, a control terminal of which is connected to an output terminal of the switching transistor, a storage capacitor provided between the output terminal of the switching transistor and an output terminal of the driving transistor, and a complementary metal oxide semiconductor (“CMOS”) transistor connected in parallel with a control terminal of the switching transistor.
    Type: Application
    Filed: February 20, 2007
    Publication date: August 23, 2007
    Applicants: SAMSUNG ELECTRONICS CO., LTD, KYUNGHEE UNIVERSITY
    Inventors: Joon-hoo CHOI, Byung-seong BAE, Kyu-ha CHUNG, Nam-deog KIM, Joon-chul GOH
  • Publication number: 20070126683
    Abstract: A display device having light-emitting pixels, a driving transistor that supplies a current to the light-emitting pixels, a switching transistor that is connected to the driving transistor and selectively transmits a data voltage, and a first capacitor that turns off the driving transistor according to a voltage signal. A capacitor that adjusts a voltage of a control terminal of a driving transistor is provided, thereby performing impulsive driving.
    Type: Application
    Filed: December 5, 2006
    Publication date: June 7, 2007
    Inventors: Si-Duk Sung, Nam-Deog Kim, Kyong-Tae Park, Young-Soo Yoon
  • Publication number: 20070109465
    Abstract: A display device includes a first insulating substrate; an organic light emitting layer which is formed on a first area of the first insulating substrate and emits a light; a second insulating substrate and a third insulating substrate which are sequentially disposed on the organic light emitting layer; and a liquid crystal layer which is formed on a second area between the second insulating substrate and the third insulating substrate with a smaller size than the first area, and is backlit by the light emitted from the organic light emitting layer.
    Type: Application
    Filed: November 9, 2006
    Publication date: May 17, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Jae-hoon JUNG, Nam-deog KIM
  • Publication number: 20070105286
    Abstract: The present invention relates to an OLED display and a manufacturing method thereof, including a substrate, a control electrode formed on the substrate, a polysilicon semiconductor formed on the control electrode, a data line including an input electrode at least partially overlapping the polysilicon semiconductor and an output electrode facing the input electrode, an insulating layer covering the data line and the output electrode and having a contact hole, a gate line connected to the control electrode through the contact hole, and a pixel electrode connected to the output electrode.
    Type: Application
    Filed: October 17, 2006
    Publication date: May 10, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Jong-Moo HUH, Seung-Kyu PARK, Nam-Deog KIM, Joon-Hoo CHOI
  • Publication number: 20070103062
    Abstract: A display device includes; a thin film transistor formed on a insulating substrate, a pixel electrode electrically connected to the thin film transistor, an organic layer formed on the pixel electrode, a wall surrounding the organic layer, a reflective film formed on the wall, and a common electrode formed on the organic layer.
    Type: Application
    Filed: November 3, 2006
    Publication date: May 10, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Jae-hoon JUNG, Nam-deog KIM
  • Publication number: 20070103407
    Abstract: A display device includes a case in which a storage space is formed and an organic light emitting diode (“OLED”) panel inserted into the storage space. The case includes a front face and a rear face, whereby one of the front and the rear face includes an opening defining a display region and a slit for communicating the storage space and an outside of the case formed at one side of the case.
    Type: Application
    Filed: October 24, 2006
    Publication date: May 10, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-sik Koh, Nam-deog KIM
  • Publication number: 20070096636
    Abstract: A method of manufacturing an organic light emitting diode display includes forming a plurality of signal lines and a plurality of TFTs on a substrate, forming a passivation layer on the signal lines and the TFTs, forming a photosensitive layer having a plurality of openings on the passivation layer, etching the passivation layer using the photosensitive layer as a mask, forming a first electrode by depositing and etching a conductive layer on substantially the entire surface including the photosensitive layer, forming a light emitting member in portions of the openings, and forming a second electrode on the light emitting member and the photosensitive layer.
    Type: Application
    Filed: September 26, 2006
    Publication date: May 3, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Seung-Kyu Park, Jong-Moo Huh, Nam-Deog Kim, Kyoung-Ju Shin
  • Publication number: 20070097041
    Abstract: A display device includes: a plurality of pixels comprising normal pixels and sample pixels; a plurality of sensing units which sense luminance of the sample pixels and generate sensing signals based on the sensed luminance; a gray voltage generator which generates a plurality of reference gray voltages having values depending on the sensing signals; and a data driver which generates normal data voltages for the normal pixels and sample data voltages for the sample pixels.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 3, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Kyong-Tae PARK, Chun-Seok KO, Nam-Deog KIM, Si-Duk SUNG
  • Publication number: 20070092981
    Abstract: A display apparatus and method of forming the same comprise an insulating substrate; a thin film transistor formed on the insulating substrate; a first electrode electrically connected to the thin film transistor and having a first maximum roughness; a buffer layer formed on the first electrode and having a second maximum roughness lower than the first maximum roughness; an organic emission layer formed on the buffer layer; and a second electrode formed on the organic emission layer. Accordingly, it is an aspect of the present invention to provide a display apparatus and method of manufacturing the same which reduce the number of defects due to roughness of a pixel electrode.
    Type: Application
    Filed: September 5, 2006
    Publication date: April 26, 2007
    Inventors: Jae-hoon Jung, Nam-deog Kim
  • Publication number: 20070080910
    Abstract: A display device that is capable of reducing the blurring of a moving image without decreasing the luminance level is presented. The display device includes a display panel having a plurality of pixels, a scanning driver for supplying scanning signals to the display panel, and a data driver for generating a first data voltage representing higher luminance than a reference luminance and a second data voltage representing lower luminance than the reference luminance and alternately applying the first data voltage and the second data voltage to the display panel. The display device displays an image having different luminance levels between the first sub-frame and the second sub-frame to reduce the blurring.
    Type: Application
    Filed: October 12, 2006
    Publication date: April 12, 2007
    Inventors: Kyong-Tae Park, Si-Duk Sung, Nam-Deog Kim, Chun-Seok Ko
  • Publication number: 20070080907
    Abstract: A display device includes a display panel including a plurality of scanning signal lines, a plurality of data lines and a plurality of pixels; a scan driver for applying a scanning signal to the scanning signal line; and a data driver for generating a data voltage including a normal data voltage and a reverse bias voltage, sequentially applying the normal data voltage to all pixels during a first period, and then applying a reverse bias voltage to all pixels during a second period which is shorter than the first period. Each pixel includes a switching transistor which is connected to one of the scanning signal lines and one of the data lines, a driving transistor electrically connected to the switching transistor, and an organic light emitting diode which is connected to the driving transistor.
    Type: Application
    Filed: October 6, 2006
    Publication date: April 12, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Kyong-Tae PARK, Si-Duk SUNG, Nam-Deog KIM
  • Publication number: 20070083784
    Abstract: A display device that uniformly supplies a driving voltage to a display device is presented. The display device includes a plurality of power supply lines, a power supply bar electrically connected to a first end portion of the power supply lines, a power supply pad providing a driving voltage to the power supply bar, contact holes formed in the power supply bar and the power supply pad, and a bridge electrode connecting the power supply bar to the power supply pad through the contact holes.
    Type: Application
    Filed: September 22, 2006
    Publication date: April 12, 2007
    Inventors: Seung-kyu Park, Jong-moo Huh, Nam-deog Kim, Joon-hoo Choi
  • Publication number: 20070075938
    Abstract: A display apparatus includes a plurality of pixels arranged in a matrix. Each pixel includes a light emitting device, a driving transistor for supplying a driving current to the light emitting device, a first switching transistor coupled with the control terminal of the driving transistor to transmit a data voltage, and a second switching transistor coupled with the control terminal of the driving transistor to transmit a reverse voltage. The first and second switching transistors are alternately coupled with scanning lines driven by one of two scanning drivers, and are alternately turned on at different times. The display apparatus periodically applies the reverse voltage to the driving transistors to turn off the diving transistors and to compensate for variation of the threshold voltage of the driving transistors.
    Type: Application
    Filed: September 26, 2006
    Publication date: April 5, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Si-Duk SUNG, Kyong-Tae PARK, Nam-Deog KIM, Chun-Seok KO
  • Publication number: 20070075955
    Abstract: The present invention relates to an OLED display including a first pixel, a second pixel, and a third pixel. Each pixel is defined by a gate line and a data line and includes a light-emitting element and a driving transistor connected to the light-emitting element. A light-emitting element of the first pixel has lower light emission efficiency than the light-emitting element of the second pixel and the third pixel, the light-emitting elements for the three pixels have substantially the same size, and an area occupied by the driving transistor of the first pixel is larger than an area occupied by the driving transistor of the second pixel and the third pixel.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 5, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwang-Chul JUNG, Nam-Deog KIM, Beohm-Rock CHOI
  • Publication number: 20070063936
    Abstract: An organic light-emitting diode (OLED) display includes a substrate, an auxiliary electrode disposed on the substrate, a first signal line disposed on the substrate, a second signal line crossing the first signal line, a driving voltage line disposed on the substrate, a first thin film transistor connected to the first signal line and the second signal line, a second thin film transistor connected to the first thin film transistor and the driving voltage line, a first electrode connected to the second thin film transistor, a second electrode facing the first electrode, and a light-emitting member disposed between the first electrode and the second electrode. The auxiliary electrode is connected to one of the driving voltage line and the second electrode.
    Type: Application
    Filed: November 7, 2006
    Publication date: March 22, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwang-Chul Jung, Beohm-Rock Choi, Nam-Deog Kim
  • Publication number: 20070030219
    Abstract: A display device and a method of driving the display device include first and second pixel row groups having at least one pixel row including a plurality of pixels, a plurality of scan lines, a plurality of data lines, and a data driver generating the data voltage including a normal data voltage and a reverse bias voltage. The data driver applies one of the normal data voltage and the reverse bias voltage to the data line according to a selection signal. The normal data voltage is applied to the driving transistors of the first pixel row group, and the reverse bias voltage is applied to the driving transistors of the second pixel row group. Accordingly, the reverse bias voltages are applied to the pixels, preventing transition of threshold voltages of the driving transistors.
    Type: Application
    Filed: April 28, 2006
    Publication date: February 8, 2007
    Inventors: Kyong-Tae Park, Si-Duk Sung, Nam-Deog Kim
  • Publication number: 20070012926
    Abstract: A display device with a decreased number of electrical lines and a method of making such display device are presented. The display device includes: a plurality of thin film transistors electrically connected to data wiring, wherein the data wiring includes a data line and a data electrode; a partition wall formed on the thin film transistor and having a contact hole exposing the data wiring; and a cathode electrically connected to the data wiring through the contact hole.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 18, 2007
    Inventors: Song-mi Hong, Kwang-chul Jung, Nam-deog Kim