Patents by Inventor Ji-Hye Eom

Ji-Hye Eom 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: 20140097743
    Abstract: A method of manufacturing a display panel of an organic light emitting display device includes determining a plurality of pixel groups, the pixel groups corresponding to groups of pixels of the display panel, calculating aperture ratios for the pixels, respective aperture ratios being calculated by pixel group based on respective distances between a power unit and the pixel groups, and forming the pixels of the display panel to have the respective aperture ratios according to the corresponding pixel groups.
    Type: Application
    Filed: May 24, 2013
    Publication date: April 10, 2014
    Inventors: Ji-Hye EOM, Hae-Yeon LEE
  • Publication number: 20140009509
    Abstract: An organic light emitting display apparatus includes a power generating unit and a display panel. The power generating unit generates a first power voltage and a second power voltage. The display panel includes a plurality of organic light emitting elements. The organic light emitting elements have first electrodes to which the first power voltage is applied in a first direction and second electrodes to which the second power voltage is applied in a second direction.
    Type: Application
    Filed: May 20, 2013
    Publication date: January 9, 2014
    Inventors: Ji-Hye EOM, Do-Ik KIM
  • Publication number: 20130307840
    Abstract: A display device and a method of driving the same in which moving image blurring is prevented and a contrast ratio is enhanced by providing a light-emitting element, switching transistors, and a driving transistor with driving signals that include specific voltages at predetermined times, so that the light-emitting element does not emit light for an entire frame and the light output is not influenced by a threshold voltage of the driving transistor.
    Type: Application
    Filed: July 26, 2013
    Publication date: November 21, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Baek-Woon LEE, Doo-Hyung Woo, Kyong-Tae Park, Ji-Hye Eom, Seong-Il Park
  • Patent number: 8552938
    Abstract: A display device and a method of driving the same in which moving image blurring is prevented and a contrast ratio is enhanced by providing a light-emitting element, switching transistors, and a driving transistor with driving signals that include specific voltages at predetermined times, so that the light-emitting element does not emit light for an entire frame and the light output is not influenced by a threshold voltage of the driving transistor.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: October 8, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Baek-Woon Lee, Doo-Hyung Woo, Kyong-Tae Park, Ji-Hye Eom, Seong-Il Park
  • Patent number: 8537077
    Abstract: A display device and a method of driving the same in which moving image blurring is prevented and a contrast ratio is enhanced by providing a light-emitting element, switching transistors, and a driving transistor with driving signals that include specific voltages at predetermined times, so that the light-emitting element does not emit light for an entire frame and the light output is not influenced by a threshold voltage of the driving transistor.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: September 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Baek-Woon Lee, Doo-Hyung Woo, Kyong-Tae Park, Ji-Hye Eom, Seong-Il Park
  • Patent number: 8310419
    Abstract: The present invention relates to a display device and a driving method thereof. The display device includes a light emitting device, a capacitor connected between a first electrical contact and a second electrical contact, a driving transistor, a switching transistor being controlled by a scanning signal to be connected between a data voltage and the first electrical contact, a first compensation transistor being controlled by a first compensation signal to be connected between the first electrical contact and a first voltage, and a second compensation transistor being controlled by a second compensation signal to be connected between the second electrical contact and a second voltage. The driving transistor includes an input terminal that is connected to a driving voltage, an output terminal that is connected to the second electrical contact, and a control terminal that is connected to the first electrical contact.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: November 13, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Doo-Hyung Woo, Kwang-Sub Shin, Young-Il Kim, Ji-Hye Eom
  • Publication number: 20120038683
    Abstract: A pixel capable of reducing leakage current (to display an image with desired brightness) is provided. The pixel includes: an organic light emitting diode (OLED) coupled to a second power source; a first transistor for controlling an amount of current that flows from a first power source to the second power source via the OLED; a second transistor coupled between a data line and the first transistor, and configured to turn on when a scan signal is supplied to a scan line; a third transistor and a fourth transistor serially coupled between the first transistor and an initializing power source; and a fifth transistor coupled between a first node coupled to a gate electrode of the first transistor, and a second node that is a common node between the third transistor and the fourth transistor, and configured to turn off in a period where current is supplied to the OLED.
    Type: Application
    Filed: February 17, 2011
    Publication date: February 16, 2012
    Inventors: Yong-Sung Park, Deok-Young Choi, Ji-Hye Eom
  • Patent number: 8084772
    Abstract: Disclosed are an organic light emitting display and a method of manufacturing the same. The organic light emitting includes a first substrate, a first electrode, an organic light emitting layer, and a second electrode. The first substrate includes a pixel region showing an image and a peripheral region surrounding the pixel region. The first electrode is formed in the pixel region of the first substrate. The organic light emitting layer is formed on the first electrode. The second electrode is formed on the organic light emitting layer and extends to the peripheral region. An auxiliary electrode is formed on the second electrode to contact the second electrode on an entire surface of the first substrate, thereby applying a voltage having the same voltage level as that of the second electrode.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: December 27, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-Hye Eom, Kwang-Sub Shin, Young-Il Kim, Sun-Min Kim, Doo-Hyung Woo
  • Patent number: 7990050
    Abstract: The present invention provides an organic light emitting display (OLED). The OLED includes a substrate, a first electrode arranged on a subpixel area of the substrate, an organic light emitting layer arranged on the first electrode, and a second electrode arranged on the organic light emitting layer, which extends to a non-subpixel area. An auxiliary electrode that is connected to the second electrode is arranged on the substrate, thereby the auxiliary electrode applies a same voltage as that of the second electrode.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ji-Hye Eom
  • Publication number: 20100141644
    Abstract: A display device and a method of driving the same in which moving image blurring is prevented and a contrast ratio is enhanced by providing a light-emitting element, switching transistors, and a driving transistor with driving signals that include specific voltages at predetermined times, so that the light-emitting element does not emit light for an entire frame and the light output is not influenced by a threshold voltage of the driving transistor.
    Type: Application
    Filed: April 16, 2009
    Publication date: June 10, 2010
    Inventors: Baek-Woon Lee, Doo-Hyung Woo, Kyong-Tae Park, Ji-Hye Eom, Seong-Il Park
  • Publication number: 20100134461
    Abstract: A display device and a method of driving the same, in which the display device includes: a light-emitting element; a first capacitor connected between first and second contact points; a driving transistor that has a control terminal connected to the second contact point, an input terminal connected to a driving voltage, and an output terminal connected to the light-emitting element; a first switching transistor connected between a data voltage or a sustain voltage and the first contact point; a second switching transistor connected between the second contact point and the output terminal of the driving transistor; and a third switching transistor connected between a reference current source and the output terminal of the driving transistor.
    Type: Application
    Filed: May 4, 2009
    Publication date: June 3, 2010
    Inventors: Sang-Myeon Han, Jae Beom Choi, Bong-Ju Kim, Kwon-Hyung Lee, Ji-Hye Eom, Sang-Hyan Jun, Hyun-Been Hwang
  • Publication number: 20100078647
    Abstract: In an organic light emitting display, a switching transistor includes an active pattern having a crystal structure grown at an angle of 0°±10° relative to a current flow direction, and a driving transistor includes an active pattern having a crystal structure grown at an angle of 90°±10° relative to a current flow direction. As a result, the driving transistor more precisely controls intensity of supply voltage applied to an organic light emitting layer.
    Type: Application
    Filed: September 29, 2009
    Publication date: April 1, 2010
    Inventor: Ji-Hye Eom
  • Publication number: 20100072482
    Abstract: Disclosed are an organic light emitting display and a method of manufacturing the same. The organic light emitting includes a first substrate, a first electrode, an organic light emitting layer, and a second electrode. The first substrate includes a pixel region showing an image and a peripheral region surrounding the pixel region. The first electrode is formed in the pixel region of the first substrate. The organic light emitting layer is formed on the first electrode. The second electrode is formed on the organic light emitting layer and extends to the peripheral region. An auxiliary electrode is formed on the second electrode to contact the second electrode on an entire surface of the first substrate, thereby applying a voltage having the same voltage level as that of the second electrode.
    Type: Application
    Filed: April 15, 2009
    Publication date: March 25, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ji-Hye Eom, Kwang-Sub Shin, Young-Il Kim, Sun-Min Kim, Doo-Hyung Woo
  • Publication number: 20100073266
    Abstract: The present invention provides a display device and a method of driving the same.
    Type: Application
    Filed: March 20, 2009
    Publication date: March 25, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyung-Don NA, Young-ll Kim, Doo-Hyung Woo, Young-Jin Chang, Ji-Hye Eom, In-Do Chung, Seong-Hyun Jin
  • Publication number: 20100060147
    Abstract: The present invention provides an organic light emitting display (OLED). The OLED includes a substrate, a first electrode arranged on a subpixel area of the substrate, an organic light emitting layer arranged on the first electrode, and a second electrode arranged on the organic light emitting layer, which extends to a non-subpixel area. An auxiliary electrode that is connected to the second electrode is arranged on the substrate, thereby the auxiliary electrode applies a same voltage as that of the second electrode.
    Type: Application
    Filed: February 5, 2009
    Publication date: March 11, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Ji-Hye EOM
  • Publication number: 20090315815
    Abstract: The present invention relates to a display device and a driving method thereof. The display device includes a light emitting device, a capacitor connected between a first electrical contact and a second electrical contact, a driving transistor, a switching transistor being controlled by a scanning signal to be connected between a data voltage and the first electrical contact, a first compensation transistor being controlled by a first compensation signal to be connected between the first electrical contact and a first voltage, and a second compensation transistor being controlled by a second compensation signal to be connected between the second electrical contact and a second voltage. The driving transistor includes an input terminal that is connected to a driving voltage, an output terminal that is connected to the second electrical contact, and a control terminal that is connected to the first electrical contact.
    Type: Application
    Filed: December 26, 2008
    Publication date: December 24, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Doo-Hyung WOO, Kwang-Sub Shin, Young-Il Kim, Ji-Hye Eom