Patents by Inventor Hai-Jung In

Hai-Jung In 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: 20150302793
    Abstract: Each pixel of a display device includes: an organic light emitting diode between a first and a second power supply; a first transistor to transmit a drive current based on data signals; a second transistor to couple a gate electrode of the first transistor to the data line in response to a scan signal; a first capacitor between the first power supply and the gate electrode of the first transistor; a light receiving element coupled to a third power supply; a second capacitor between the light receiving element and a fourth power supply; a third transistor between the data line and a first electrode of the second capacitor, the third transistor including a gate electrode coupled to a selection signal line; and a fourth transistor between the fourth power supply and the third transistor, the fourth transistor including a gate electrode coupled to the first electrode of the second capacitor.
    Type: Application
    Filed: October 1, 2014
    Publication date: October 22, 2015
    Inventors: Hai-Jung In, Yong-Sung Park
  • Publication number: 20150249119
    Abstract: An organic light-emitting display and a method of manufacturing an organic light-emitting display are described. According to an aspect, the organic light-emitting display includes a substrate, a photodiode on the substrate, a planarization layer covering the photodiode, a first electrode on the planarization layer, a pixel defining layer at least partially exposing the first electrode, an organic layer covering the first electrode which is exposed by the pixel defining layer and a second electrode covering the pixel defining layer and the organic layer.
    Type: Application
    Filed: July 15, 2014
    Publication date: September 3, 2015
    Inventors: Hai Jung In, Yong Sung Park
  • Publication number: 20150243219
    Abstract: An organic light emitting display includes: a display panel including pixels at crossing regions of data lines and scan lines; a scan driver configured to divide one frame into a plurality of sub-fields, to divide each of the subfields into p (p is a positive integer of 2 or more) periods, and to supply scan signals to the scan lines; and a data driver configured to supply data voltages to the data lines concurrently with supply of respective scan signals, wherein a gray scale voltage from among (P+1) gray scale voltages is supplied as at least one of the data voltages.
    Type: Application
    Filed: February 10, 2015
    Publication date: August 27, 2015
    Inventors: Hai-Jung In, Yong-Sung Park, Il-Hun Jeong
  • Publication number: 20150243209
    Abstract: An organic light emitting display can improve display quality by securing a charging time of a data signal. An organic light emitting display includes pixels, a data driver, a plurality of data drivers, and a control signal generator. The pixels are respectively positioned at areas defined by scan lines and data lines. The data driver sequentially supplies i (i is a natural number greater than or equal to 2) data signals to each of output lines during one horizontal period. The plurality of data dividers are respectively coupled to the output lines, and supply the i data signals to i data lines. The control signal generator sequentially supplies i control signals to the data dividers, corresponding to the i data signals. In the organic light emitting display, the data dividers supply a corresponding data signal to each data line during the one horizontal period.
    Type: Application
    Filed: January 23, 2015
    Publication date: August 27, 2015
    Inventors: Hai-Jung In, Yong-Sung Park, Bo-Yong Chung
  • Publication number: 20150170562
    Abstract: An organic light-emitting display apparatus including emitting pixels including drivers for displaying gradation by making a light-emitting device selectively emit light according to a logic level of a data signal transmitted to each of the sub-fields forming a frame, and dummy pixels coupled to a repair line that is coupled to a light-emitting device of a first emitting pixel from among the plurality of the emitting pixels, wherein the dummy pixels include a first dummy driver for making the light-emitting device of the first emitting pixel emit light by charging the repair line when a data signal having a first logic level is transmitted, a second dummy driver for discharging the repair line when a data signal having a second logic level opposite to the first logic level is transmitted, and a boost capacitor coupled to the repair line and for controlling a charging/discharging speed of the repair line.
    Type: Application
    Filed: May 15, 2014
    Publication date: June 18, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hai-Jung In, Il-Hoon Jeong
  • Publication number: 20150103070
    Abstract: A pixel includes a driving circuit, a first organic light emitting diode, a second organic light emitting diode, and a self-repair circuit. The driving circuit supplies current based on a data signal supplied through a data line. The first organic light emitting diode is coupled to the driving circuit through a first current path. The second OLED is coupled to the driving circuit through a second current path. The self-repair circuit interrupts the first current path and supplies the current to the second current path when the first organic light emitting diode has a defect.
    Type: Application
    Filed: September 18, 2014
    Publication date: April 16, 2015
    Inventors: Hai-Jung IN, Yong-Sung PARK
  • Publication number: 20150021591
    Abstract: A thin film transistor is disclosed. In one aspect, the thin film transistor includes a substrate, a semiconductor layer formed on the substrate, and a first gate electrode substantially overlapping the semiconductor layer with a gate insulating layer interposed therebetween. The thin film transistor also includes a second gate electrode substantially overlapping the first gate electrode with an interlayer insulating layer interposed therebetween, and a source electrode and a drain electrode electrically connected to the semiconductor layer, wherein the first gate electrode is electrically connected to the second gate electrode.
    Type: Application
    Filed: December 18, 2013
    Publication date: January 22, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jung-Bae Kim, Bo-Yong Chung, Hae-Yeon Lee, Hai-Jung In
  • Publication number: 20150021595
    Abstract: An electro static discharge (ESD) protection circuit including a signal transmission line coupled to an external input terminal, the ESD protection circuit including: a first power line coupled to a high voltage power supply; a second power line coupled to a low voltage power supply; a plurality of first oxide thin film transistors coupled in parallel between the first power line and the signal transmission line, the first oxide thin film transistors being diode-connected; and a plurality of second oxide thin film transistors coupled in parallel between the signal transmission line and the second power line, the second oxide thin film transistors being diode-connected.
    Type: Application
    Filed: July 8, 2014
    Publication date: January 22, 2015
    Inventors: Hai-Jung In, Bo-Yong Chung
  • Publication number: 20150009199
    Abstract: A pixel circuit including an organic light emitting diode (OLED), a first transistor, a first capacitor, a second transistor, a second capacitor and a third transistor is disclosed. In one aspect, the first transistor controls the amount of current flowing from a first power source to a second power source via the OLED, corresponding to a voltage at a first node. The first capacitor has a first terminal connected to a data line. The second transistor is connected between a second terminal of the first capacitor and a second node. The second capacitor is connected between the second node and the first node. The third transistor is connected between a fixed voltage source and the second terminal of the first capacitor, and has a turn-on period non-overlapping with that of the second transistor.
    Type: Application
    Filed: March 27, 2014
    Publication date: January 8, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hai-Jung In, Yong-Sung Park
  • Publication number: 20140354711
    Abstract: An organic light emitting display device includes pixels, a scan driver, a memory configured to store pixel data containing information indicative of threshold voltages and mobilities of first transistors in the pixels, a timing controller configured to modify one or more bits of first data to generate second data, the first data modified in response to the pixel data, a data driver configured to generate data signals based on the second data, and a control driver configured to supply a first control signal to a first control line commonly coupled to the pixels and a second control signal to a second control line, wherein each of the pixels is configured to store a data signal of a current frame and to emit light corresponding to a data signal of a previous frame.
    Type: Application
    Filed: March 14, 2014
    Publication date: December 4, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hai-Jung IN, Jung-Bae KIM, Bo-Yong CHUNG
  • Publication number: 20140353605
    Abstract: A thin film transistor includes a substrate, a semiconductor layer on the substrate, a first insulating layer covering the substrate and the semiconductor layer, a first gate electrode on the first insulating layer and overlapping the semiconductor layer, a second insulating layer covering the first gate electrode and the first insulating layer, a second gate electrode on the second insulating layer and overlapping the semiconductor layer and the first gate electrode, a third insulating layer covering the second gate electrode, a first contact hole defined in the first insulating layer, the second insulating layer and the third insulating layer, and through which a portion of the semiconductor layer is exposed, and a source electrode and a drain electrode connected to the semiconductor layer through the first contact hole.
    Type: Application
    Filed: October 16, 2013
    Publication date: December 4, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jung-Bae KIM, Bo-Yong CHUNG, Hai-Jung IN, Dong-Gyu KIM
  • Publication number: 20140354517
    Abstract: A pixel includes an organic light emitting diode (OLED) having a cathode electrode coupled to a second power supply, a pixel circuit configured to control an amount of current supplied to the OLED to correspond to a previous data signal, and a driver configured to store a present data signal supplied from a data line and to supply the previous data signal to the pixel circuit. The OLED, pixel circuit, and driver may be controlled by signals in a frame that includes first through fourth periods, the second power supply may be set to a first voltage in the first and second periods and to a second voltage in the third and fourth periods, and the first voltage may be a voltage at which the OLED does not emit light and the second voltage may be a voltage at which the OLED emits light.
    Type: Application
    Filed: April 11, 2014
    Publication date: December 4, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Bo-Yong CHUNG, Hai-Jung IN, Jung-Bae KIM
  • Publication number: 20140333515
    Abstract: A pixel for an organic light emitting diode (OLED) display is disclosed. One inventive aspect includes an organic light emitting diode, a first transistor, a first capacitor, a second transistor and a second capacitor. The first transistor is configured to control an amount of current flowing from a first power source to a second power source via the organic light emitting diode in response to a voltage of a first node. The first capacitor is connected to a data line and has a first terminal. The second transistor is connected to a second terminal of the first capacitor and a second node and is configured to be turned on when a scan signal is supplied to a scan line. The second capacitor is connected to the second and first nodes.
    Type: Application
    Filed: March 10, 2014
    Publication date: November 13, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hai-Jung IN, Yong-Sung PARK
  • Publication number: 20140333512
    Abstract: A pixel circuit for an organic light emitting diode (OLED) display is disclosed. One inventive aspect includes an organic light emitting diode, a first transistor, a storage unit, a second transistor and a third transistor. The first transistor controls the amount of current flowing from a first power source coupled to a second power source via a second node and the organic light emitting diode in response to a voltage at a first node. The storage unit is connected to a data line, and stores a data signal from the data line. The second transistor is connected to a fourth node and the first node and is turned on when a second control signal is supplied. The third transistor is connected to the first node and a third node and is turned on when a third control signal is supplied.
    Type: Application
    Filed: September 26, 2013
    Publication date: November 13, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hai-Jung In, Jung-Bae Kim, Bo-Yong Chung
  • Publication number: 20140313106
    Abstract: An organic light emitting diode (OLED) display device includes a plurality of pixels each having a pixel circuit and an organic light emitting diode coupled to the pixel circuit. The OLED display device includes a scan driver which is configured to supply a scan signal to the scan lines and to supply an emission control signal to an emission control line commonly coupled to the pixels. The OLED display device also includes repair lines and repair circuits coupled to the repair lines. The repair circuits each have an output terminal coupled to an organic light emitting diode in corresponding pixel. A switching unit is configured to allow output lines of the data driver to be selectively coupled to the repair lines or the data lines.
    Type: Application
    Filed: July 30, 2013
    Publication date: October 23, 2014
    Inventors: Hai-Jung In, Yong-Sung Park, Yong-Jae Kim
  • Publication number: 20140292826
    Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a coupling voltage generator. The display panel includes a plurality of pixels. The gate driver provides a gate signal to the display panel. The data driver provides a data voltage to the display panel. The coupling voltage generator provides a coupling voltage to the display panel. The coupling voltage has a plurality of levels.
    Type: Application
    Filed: September 20, 2013
    Publication date: October 2, 2014
    Inventors: Hai-Jung IN, Il-Hun JEONG
  • Publication number: 20140240304
    Abstract: An organic light emitting display including a repair circuit is disclosed. In one aspect the organic light emitting diode (OLED) display includes a pixel unit having a plurality of pixels positioned at the intersection of scanning lines, data lines, and power lines, The OLED display further includes an organic light emitting diode OLED connected to the pixel circuit, and repair lines disposed in parallel with data lines and repair circuits connected to the repair lines and the power lines. The OLED display further includes a switching unit for selectively connecting output lines of the data driving unit to the repair lines or the data lines.
    Type: Application
    Filed: May 23, 2013
    Publication date: August 28, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hai-Jung In, Yong-Sung Park
  • Publication number: 20140198085
    Abstract: A pixel includes an organic light emitting diode, a first driver and a second driver. The second driver controls an amount of current supplied from a first power source to the organic light emitting diode, corresponding to a previous data signal. The first driver stores a current data signal supplied from a data line and supplies the previous data signal to the second driver. In the pixel, the second driver includes a sixth transistor coupled between an initialization power source and a first node coupled to a gate electrode of a first transistor, the sixth transistor being configured to turn on when a first control signal is supplied; and a seventh transistor coupled between the first power source and a second node commonly coupled to the first and second drivers, the seventh transistor being configured to turn on when the first control signal is supplied.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 17, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yong-Sung Park, Tak-Young Lee, Hai-Jung In, Bo-Yong Chung, Min-Hyuk Choi, Yong-Jae Kim
  • Publication number: 20140190390
    Abstract: A portable foldable boat includes a floating body portion, a base plate portion and a boat shell. The floating body portion is disposed with one or more rows of boat base units, each row including at least one but generally a plurality of boat base units. Several connection holes are disposed on a peripheral edge of the boat base unit. The base plate portion includes a waterproof member and a base plate. The boat shell includes a first outboard plate, a second outboard plate and a lateral plate. The base plate portion and the boat shell are superposed and fixed on the floating body portion.
    Type: Application
    Filed: March 15, 2013
    Publication date: July 10, 2014
    Inventor: Hai-Jung LEE
  • Publication number: 20070097035
    Abstract: A plasma display apparatus is disclosed The plasma display apparatus includes a first voltage source, a multiplying unit, and a sustain pulse supply controller. The multiplying unit is charged to a voltage of the first voltage source, and then supplies a multiplying voltage equal to two times the voltage of the first voltage source to a panel capacitor. The sustain pulse supply controller is connected between the multiplying unit and the panel capacitor, and controls the supplying of the multiplying voltage supplied by the multiplying unit to the panel capacitor.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 3, 2007
    Inventors: Byung Ahn, Hai Jung