Patents by Inventor Deok Young Choi

Deok Young 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).

  • Publication number: 20190221165
    Abstract: A pixel includes an organic light emitting diode including an anode electrode and a cathode electrode; a driving transistor including an input electrode connected to a first node (FN), a control electrode connected to a second node, and an output electrode connected to a third node; a switching transistor to apply a data signal to the FN in response to a scan signal in a second period; a first initialization transistor to apply a first initialization voltage to the second node in response to an initialization control signal in a first period (FP); a second initialization transistor to apply a second initialization voltage having a voltage level different from the first initialization voltage to the anode electrode in response to the initialization control signal in the FP; and an on-bias transistor to apply a first driving voltage to the FN in response to an on-bias control signal in the FP.
    Type: Application
    Filed: December 11, 2018
    Publication date: July 18, 2019
    Inventors: Yongsung Park, Minwoo Byun, Keonwoo Kim, Seungbin Lee, Deok-young Choi
  • Publication number: 20190214450
    Abstract: A display panel including a first pixel row comprising a plurality of first pixels arranged in a first direction; a second pixel row comprising a plurality of second pixels, each of the plurality of second pixels overlaps each of the plurality of first pixels in a second direction crossing the first direction, and a third pixel, the third pixel does not overlap the plurality of first pixels in the second direction, wherein the plurality of second pixels and the third pixel being arranged in the first direction; and a first vertical line comprising a first sub-line, the first sub-line is extended in the second direction and is connected to the third pixel, and a second sub-line, the second sub-line is extended from an end portion of the first sub-line in a direction away from the plurality of first pixels at a first angle relative to the second direction.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 11, 2019
    Inventors: Dong-hyun LEE, Deukjong KIM, Jaehak LEE, Deok-young CHOI
  • Patent number: 10255850
    Abstract: A pixel includes: a first transistor connected between a data line and a first node; a second transistor connected between a first power source and a second node, the second transistor including a gate electrode connected to the first node; a third transistor connected between the first power source and the second transistor; a capacitor connected between the first node and the second node; an organic light emitting diode (OLED) connected between the second node and a second power source; and a fourth transistor including a second electrode connected to a cathode of the OLED.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: April 9, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Jin Cho, Young In Hwang, Yong Jae Kim, Deok Young Choi
  • Patent number: 10224345
    Abstract: A display apparatus includes at least one pixel in a display area, a driving circuit disposed in a peripheral area adjacent the display area, the peripheral area including a first fan-out area and a second fan-out area disposed between the first fan-out area and the display area, a first fan-out line disposed in the first fan-out area and the second fan-out area, and fanned out from the first fan-out area to the display area, a second fan-out line disposed in the second fan-out area, and fanned out from the second fan-out area to the display area, a first horizontal power line disposed in the second fan-out area, and a second horizontal power line disposed in the first fan-out area, and electrically connected to the second fan-out line.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: March 5, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Deok-Young Choi, So-Hyun Lee, Young-Jin Cho
  • Patent number: 10109237
    Abstract: A pixel includes first through sixth transistors and an organic light emitting diode. The first transistor includes a gate electrode connected to a first node, a first electrode, and a second electrode connected to a second node. The second transistor provides a data signal to the first node in response to a scan signal. The third transistor provides a first power voltage to the first transistor in response to an emission control signal. The fourth transistor provides a reference voltage to the first node in response to a voltage control signal. The fifth transistor provides the reference voltage to the first node in response to an initialization control signal. The sixth transistor provides an initialization voltage to the second node in response to the initialization control signal. The organic light emitting diode is connected between the second node and a second power voltage.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: October 23, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyoung-Jin Park, Yong-Jae Kim, Young-Jin Cho, Deok-Young Choi
  • Patent number: 10096662
    Abstract: An organic light emitting display (OLED) device includes a substrate including a light emitting region and a peripheral region. An auxiliary power supply wire is disposed in the peripheral region. A lower electrode is disposed in the light emitting region. A pixel defining layer, disposed on the substrate, exposes a portion of the lower electrode and a portion of the auxiliary power supply wire. A first common layer, disposed on the pixel defining layer and the lower electrode, exposes the auxiliary power supply wire. A light emitting structure is disposed on the first common layer. The light emitting structure exposes the auxiliary power supply wire. A second common layer is disposed on the light emitting structure, the second common layer covering the light emitting structure and exposing the auxiliary power supply wire. An upper electrode is disposed on the second common layer and contacts the auxiliary power supply wire.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: October 9, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Deok-Young Choi, Young-Jin Cho, Yong-Jae Kim, Kyoung-Jin Park, Jin-Gon Oh, Wang-Jo Lee
  • Patent number: 10074314
    Abstract: An organic light-emitting display device includes a substrate having a display area and a non-display area, a thin-film transistor (TFT) that includes a gate electrode and that is disposed in the display area of the substrate, a first scan line disposed in a same layer as the gate electrode that is connected to the gate electrode; and a second scan line disposed in a different layer from the first scan line that overlaps the first scan line, wherein the first scan line is connected to the second scan line in the non-display area of the substrate.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: September 11, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tak Young Lee, Chul Kyu Kang, Young In Hwang, Ji Hye Kong, Deok Young Choi
  • Publication number: 20180240382
    Abstract: A stage circuit including an input unit controlling voltages of a first node and a second node by using a shift pulse or a gate start pulse input to a first input terminal, a first clock signal input to a second input terminal, a second clock signal input to a third input terminal, a first power supply input to a first power supply input terminal and a second power supply input to a second power supply input terminal, and a first output unit receiving a third clock signal from a fourth input terminal and the second power supply from the second power supply input terminal and outputting a high-level scan signal to a first output terminal corresponding to the voltages of the first node and the second node.
    Type: Application
    Filed: August 31, 2017
    Publication date: August 23, 2018
    Inventors: Deok Young CHOI, Yong Jae KIM, Chang Yeop KIM, Jin JEON
  • Publication number: 20180145119
    Abstract: An organic light emitting display (OLED) device includes a substrate including a light emitting region and a peripheral region. An auxiliary power supply wire is disposed in the peripheral region. A lower electrode is disposed in the light emitting region. A pixel defining layer, disposed on the substrate, exposes a portion of the lower electrode and a portion of the auxiliary power supply wire. A first common layer, disposed on the pixel defining layer and the lower electrode, exposes the auxiliary power supply wire. A light emitting structure is disposed on the first common layer. The light emitting structure exposes the auxiliary power supply wire. A second common layer is disposed on the light emitting structure, the second common layer covering the light emitting structure and exposing the auxiliary power supply wire. An upper electrode is disposed on the second common layer and contacts the auxiliary power supply wire.
    Type: Application
    Filed: January 3, 2018
    Publication date: May 24, 2018
    Inventors: Deok-Young CHOI, Young-Jin CHO, Yong-Jae KIM, Kyoung-Jin PARK, Jin-Gon OH, Wang-Jo LEE
  • Publication number: 20180108721
    Abstract: An organic light-emitting display device is provided. The organic light-emitting display device comprises a plurality of data lines, first and second sensing lines disposed on a same layer as the data lines, an insulating layer disposed on the data lines and the first and second sensing lines, and a power line disposed on the insulating layer. An area of overlap between the first sensing line and the power line is the same as an area of overlap between the second sensing line and the power line.
    Type: Application
    Filed: September 27, 2017
    Publication date: April 19, 2018
    Inventors: So Hyun Lee, Deok Young Choi
  • Patent number: 9893128
    Abstract: An organic light emitting display (OLED) device includes a substrate including a light emitting region and a peripheral region. An auxiliary power supply wire is disposed in the peripheral region. A lower electrode is disposed in the light emitting region. A pixel defining layer, disposed on the substrate, exposes a portion of the lower electrode and a portion of the auxiliary power supply wire. A first common layer, disposed on the pixel defining layer and the lower electrode, exposes the auxiliary power supply wire. A light emitting structure is disposed on the first common layer. The light emitting structure exposes the auxiliary power supply wire. A second common layer is disposed on the light emitting structure, the second common layer covering the light emitting structure and exposing the auxiliary power supply wire. An upper electrode is disposed on the second common layer and contacts the auxiliary power supply wire.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: February 13, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Deok-Young Choi, Young-Jin Cho, Yong-Jae Kim, Kyoung-Jin Park, Jin-Gon Oh, Wang-Jo Lee
  • Publication number: 20170358603
    Abstract: A display apparatus includes at least one pixel in a display area, a driving circuit disposed in a peripheral area adjacent the display area, the peripheral area including a first fan-out area and a second fan-out area disposed between the first fan-out area and the display area, a first fan-out line disposed in the first fan-out area and the second fan-out area, and fanned out from the first fan-out area to the display area, a second fan-out line disposed in the second fan-out area, and fanned out from the second fan-out area to the display area, a first horizontal power line disposed in the second fan-out area, and a second horizontal power line disposed in the first fan-out area, and electrically connected to the second fan-out line.
    Type: Application
    Filed: January 17, 2017
    Publication date: December 14, 2017
    Inventors: DEOK-YOUNG CHOI, SO-HYUN LEE, YOUNG-JIN CHO
  • Patent number: 9786730
    Abstract: An organic light emitting device includes: a first transistor including a source electrode connected to a data line and a gate electrode connected to a scan line; a second transistor including a source electrode connected to a driving voltage and a gate electrode connected to a drain electrode of the first transistor; a capacitor connected between the gate electrode of the second transistor and the source electrode of the second transistor; an organic light emitting diode connected to a drain electrode of the second transistor; and a third transistor connected to the organic light emitting diode and a common voltage.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: October 10, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Jin Cho, Deok-Young Choi, Young-In Hwang, Chul Kyu Kang, Yong Jae Kim
  • Publication number: 20170278910
    Abstract: An organic light emitting display (OLED) device includes a substrate including a light emitting region and a peripheral region. An auxiliary power supply wire is disposed in the peripheral region. A lower electrode is disposed in the light emitting region. A pixel defining layer, disposed on the substrate, exposes a portion of the lower electrode and a portion of the auxiliary power supply wire. A first common layer, disposed on the pixel defining layer and the lower electrode, exposes the auxiliary power supply wire. A light emitting structure is disposed on the first common layer. The light emitting structure exposes the auxiliary power supply wire. A second common layer is disposed on the light emitting structure, the second common layer covering the light emitting structure and exposing the auxiliary power supply wire. An upper electrode is disposed on the second common layer and contacts the auxiliary power supply wire.
    Type: Application
    Filed: December 27, 2016
    Publication date: September 28, 2017
    Inventors: Deok-Young CHOI, Young-Jin CHO, Yong-Jae KIM, Kyoung-Jin PARK, Jin-Gon OH, Wang-Jo LEE
  • Publication number: 20170249902
    Abstract: A pixel includes first through sixth transistors and an organic light emitting diode. The first transistor includes a gate electrode connected to a first node, a first electrode, and a second electrode connected to a second node. The second transistor provides a data signal to the first node in response to a scan signal. The third transistor provides a first power voltage to the first transistor in response to an emission control signal. The fourth transistor provides a reference voltage to the first node in response to a voltage control signal. The fifth transistor provides the reference voltage to the first node in response to an initialization control signal. The sixth transistor provides an initialization voltage to the second node in response to the initialization control signal. The organic light emitting diode is connected between the second node and a second power voltage.
    Type: Application
    Filed: January 12, 2017
    Publication date: August 31, 2017
    Inventors: Kyoung-Jin PARK, Yong-Jae KIM, Young-Jin CHO, Deok-Young CHOI
  • Patent number: 9721501
    Abstract: An organic light-emitting display panel including a plurality of pixels arranged at a display area in column and row directions, the plurality of pixels being configured to receive power voltages; a voltage line associated with a pixel column, the voltage line being configured to apply a power voltage to the plurality of pixels included in the pixel column, the power voltage being supplied from a power line; and an auxiliary line coupled to a center node of the voltage line, the center node being located at a middle point of the voltage line, wherein the power voltage supplied from the power line is configured to be applied to the voltage line through the center node.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: August 1, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Jin Cho, Deok-Young Choi, Young-In Hwang
  • Patent number: 9691822
    Abstract: An organic light emitting diode display including: a substrate; a plurality of first signal lines on the substrate extending in a first direction; a first insulating layer covering the substrate and the first signal lines; a plurality of auxiliary signal lines formed on the first insulating layer and overlapping the first signal lines; a second insulating layer covering the auxiliary signal lines; a plurality of first signal line connecting members formed on the second insulating layer while overlapping parts of the auxiliary signal lines; a plurality of second signal lines crossing the first signal lines; a plurality of switching transistors and a plurality of driving transistors connected with the first signal lines and the second signal lines; and a plurality of organic light emitting diodes electrically connected to the driving transistors, where the first signal line connecting members connect the first signal lines to the auxiliary signal lines.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: June 27, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Deuk Jong Kim, Tak-Young Lee, Won Kyu Lee, Hae-Yeon Lee, Ji Hye Kong, Hyun Tae Kim, Yong Sung Park, Yong Ho Yang, Dong-Beom Lee, Deok-Young Choi
  • Publication number: 20170025060
    Abstract: A pixel includes: a first transistor connected between a data line and a first node; a second transistor connected between a first power source and a second node, the second transistor including a gate electrode connected to the first node; a third transistor connected between the first power source and the second transistor; a capacitor connected between the first node and the second node; an organic light emitting diode (OLED) connected between the second node and a second power source; and a fourth transistor including a second electrode connected to a cathode of the OLED.
    Type: Application
    Filed: March 8, 2016
    Publication date: January 26, 2017
    Inventors: Young Jin Cho, Young In Hwang, Yong Jae Kim, Deok Young Choi
  • Publication number: 20160300533
    Abstract: An organic light-emitting display device includes a substrate having a display area and a non-display area, a thin-film transistor (TFT) that includes a gate electrode and that is disposed in the display area of the substrate, a first scan line disposed in a same layer as the gate electrode that is connected to the gate electrode; and a second scan line disposed in a different layer from the first scan line that overlaps the first scan line, wherein the first scan line is connected to the second scan line in the non-display area of the substrate.
    Type: Application
    Filed: September 22, 2015
    Publication date: October 13, 2016
    Inventors: TAK YOUNG LEE, CHUL KYU KANG, YOUNG IN HWANG, JI HYE KONG, DEOK YOUNG CHOI
  • Patent number: 9437664
    Abstract: A display device may include a display area for displaying an image. The display device may further include a peripheral area that surrounds the display area. The display device may further include a pixel disposed in the display area. The display device may further include a bus line disposed in the peripheral area and configured to transmit a signal. The display device may further include a connection conductor set electrically connected to the bus line. The display device may further include a branch line electrically connected to the connection conductor set, configured to receive the signal from the bus line, and configured to transmit the signal to the pixel, wherein a portion of the branch line is disposed in the display area.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: September 6, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Mi Choi, Dong-Gyu Kim, Young-In Hwang, Deok-Young Choi, Seong-Il Park