Patents by Inventor June Woo Lee

June Woo Lee 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: 8692254
    Abstract: An organic light-emitting display device in which a pixel electrode is formed by extending from source and drain electrodes, a capacitor including a thin upper capacitor electrode formed below the pixel electrode and constituting a metal-insulator-metal (MIM) CAP structure, thereby simplifying manufacturing processes, increasing an aperture ratio, and improving a voltage design margin.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: April 8, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: June-Woo Lee
  • Publication number: 20140071027
    Abstract: A display device includes a plurality of pixels, each pixel including an organic light emitting diode (OLED) and a driving transistor, a sustain power supply unit applying a first sustain voltage to a plurality of data lines connected to the plurality of pixels, and a data driver applying one of a data signal and a second sustain voltage to the plurality of data lines. For each pixel, the sustain power supply unit applies the first sustain voltage as a first level voltage to reset a gate voltage of the driving transistor and applies the first sustain voltage as a second level voltage to increase the gate voltage of the driving transistor. When an anode voltage of the OLED in each pixel is discharged to be reset, the anode voltage of the OLED is controlled according to a voltage difference between the first level voltage and the second level voltage.
    Type: Application
    Filed: January 28, 2013
    Publication date: March 13, 2014
    Inventors: Guang hai JIN, Dong-Gyu KIM, Kwan-Wook JUNG, Ho-Young KIM, June-Woo LEE, In-Ho CHOI
  • Patent number: 8669548
    Abstract: An organic light-emitting display apparatus includes a first insulating layer, a second insulating layer on the first insulating layer and including an unevenness portion, a third insulating layer on the second insulating layer, a pixel electrode on the third insulating layer, an opposite electrode facing the pixel electrode, and an organic emission layer between the pixel electrode and the opposite electrode; a thin film transistor including an active layer, a gate electrode, and source/drain electrodes connected to the active layer, the first insulating layer being between the active layer and the gate electrode and the second insulating layer being between the gate electrode, and the source/drain electrodes; and a capacitor including a lower electrode on a same layer as the gate electrode, a dielectric layer of a same material as the third insulating layer, and an upper electrode on a same layer as the pixel electrode.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: March 11, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Hwan Oh, Young-Jin Chang, Seong-Hyun Jin, Se-Hun Park, June-Woo Lee, Kwang-Hae Kim, Jong-Hyun Choi, Kwan-Wook Jung, Won-Kyu Lee, Jae-Beom Choi
  • Patent number: 8624249
    Abstract: An organic light emitting display device includes a substrate, a thin film transistor formed on the substrate and including an active layer, a gate electrode including a gate lower electrode and a gate upper electrode, a source electrode, and a drain electrode, an organic light emitting device electrically connected to the thin film transistor, wherein a pixel electrode formed of the same material as at least a part of the gate electrode in the same layer, an intermediate layer including a light emitting layer, and an opposed electrode arranged to face the pixel electrode are sequentially deposited.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: January 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: June-Woo Lee, Chun-Gi You, Joon-Hoo Choi
  • Publication number: 20140002334
    Abstract: A gate driving apparatus includes a first stage which outputs a first gate output signal, and a second stage which outputs a second gate output signal. The first stage includes: a transistor which includes a gate electrode, a source electrode and a drain electrode; and a dummy transistor which includes a dummy gate electrode, a dummy source electrode and a dummy drain electrode. The gate electrode receives the second gate output signal, and the dummy source electrode is connected to the source electrode or the drain electrode of the transistor and prevents static electricity from flowing to the first stage.
    Type: Application
    Filed: September 5, 2013
    Publication date: January 2, 2014
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyung-Gi JUNG, Jeong-Young LEE, June-Woo LEE, Sok LEE
  • Publication number: 20130307833
    Abstract: A display apparatus is disclosed. The display apparatus includes a plurality of scan lines branching off from each of a plurality of scan wires. Each scan line connects one of the scan wires to adjacent sub pixels of the same color. An insulating layer is disposed between the scan lines and the scan wire. A plurality of contact holes is formed in the insulating layer so as to electrically connect the scan lines and the scan wires. In addition, a plurality of data lines intersect the scan lines, and are connected to the sub pixels, and first power supply lines extend in the second direction and connected to the plurality of sub pixels.
    Type: Application
    Filed: October 31, 2012
    Publication date: November 21, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: June-Woo Lee, Jae-Beom Choi, Kwan-Wook Jung, Sung-Soo Choi, Seong-Jun Kim, Guang-Hai Jin, Ga-Young Kim, Jee-Hoon Kim
  • Publication number: 20130307557
    Abstract: A method of inspecting a short circuit defect between first wires extending in a first direction and a second direction intersecting the first direction and second wires extending in the first or second direction, the method including inspecting a short circuit defect between the first and second wires by using a potential difference monitored only in the second wires.
    Type: Application
    Filed: November 8, 2012
    Publication date: November 21, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: June-Woo Lee, Jae-Beom Choi, Kwan-Wook Jung, Sung-Soo Choi, Seong-Jun Kim, Guang-Hai Jin, Ga-Young Kim, Jee-Hoon Kim
  • Publication number: 20130307548
    Abstract: A display apparatus is disclosed. The apparatus includes a plurality of unit pixels each comprising a plurality of sub pixels, a plurality of scan wires, and a plurality of scan lines branching off from each of the scan wires and extending in a first direction. The number of scan lines from each scan wire equals the number of sub pixels for each pixel, and each scan line connects one of the scan wires with one of the sub pixels of each of a plurality of unit pixels. The apparatus also includes a plurality of data lines extending in a second direction orthogonal to the first direction and which are connected to the plurality of sub pixels. The apparatus also includes a first power supply line extending in the second direction and connected to the sub pixels, and a plurality of test pads, each connected to the scan lines of one of the scan wires.
    Type: Application
    Filed: October 31, 2012
    Publication date: November 21, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: June-Woo Lee, Jae-Beom Choi, Kwan-Wook Jung, Sung-Soo Choi, Seong-Jun Kim, Guang-Hai Jin, Ga-Young Kim, Jee-Hoon Kim
  • Publication number: 20130300966
    Abstract: A thin film transistor and a display apparatus include: a substrate; a plurality of first conductive lines formed on the substrate, each including a main body and a curved portion connected to the main body; a plurality of second conductive lines crossing the curved portions of the first conductive lines; and a plurality of pixel electrodes formed adjacent to the first conductive lines. The plurality of pixel electrodes includes a first pixel electrode disposed toward a side of one first conductive line, and a second pixel electrode disposed toward the other side of the one first conductive line. The display apparatus also includes an intermediate layer connected to the pixel electrodes for displaying images and an opposite electrode formed thereon.
    Type: Application
    Filed: October 11, 2012
    Publication date: November 14, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Guang-Hai Jin, Jae-Beom Choi, Kwan-Wook Jung, June-Woo Lee, Sung-Soo Choi, Seong-Jun Kim
  • Publication number: 20130293236
    Abstract: An organic light emitting diode display apparatus and a method and apparatus for easily inspecting the organic light emitting diode display apparatus to determine whether an electrical failure occurs. The organic light emitting diode display apparatus comprises a plurality of pixels each comprising a pixel electrode, an intermediate layer including an organic emission layer, and an opposite electrode; scan lines and data lines corresponding to the plurality of pixels; first power supply lines connected to the plurality of pixels and extending in a first direction; second power supply lines connected to the first power supply lines; and a control line unit for simultaneously supplying control signals to the plurality of pixels, the control line unit including a plurality of control lines extending in one direction and two common lines being respectively connected to both ends of each of the plurality of control lines.
    Type: Application
    Filed: November 6, 2012
    Publication date: November 7, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: June-Woo Lee, Jae-Beom Choi, Kwan-Wook Jung, Sung-Soo Choi, Seong-Jun Kim, Guang-Hai Jin, Ga-Young Kim, Jee-Hoon Kim
  • Patent number: 8575607
    Abstract: A flat panel display device that can achieve uniformity between pixel circuits and improved image quality includes: a first pixel including a first light emitting device and not including a pixel circuit; and a second pixel spaced apart from the first pixel and including a first circuit that is electrically connected to the first light emitting device. Active layers of thin film transistors in the pixel circuits are formed of polycrystalline silicon crystallized from an amorphous silicon and patterned from an area of the polycrystalline silicon in which lasers of an excimer laser annealing process did not overlap.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: November 5, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: June-Woo Lee
  • Publication number: 20130285996
    Abstract: An organic light emitting display apparatus and a method of easily inspecting the apparatus to determine whether an electrical failure occurs are disclosed. The organic light emitting display apparatus includes a plurality of pixels each including a pixel electrode, an intermediate layer including an organic emission layer, and an opposite electrode, pluralities of scan lines and data lines corresponding to the plurality of pixels, first power supply lines connected to the plurality of pixels and extending in a first direction; second power supply lines connected to the first power supply lines, and a controller that simultaneously supplies control signals to the plurality of pixels, and includes a plurality of control lines and a common line. The common line is connected to a first end of each of the plurality of control lines and is separated from a second, opposing end of each of the plurality of control lines.
    Type: Application
    Filed: October 9, 2012
    Publication date: October 31, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: June-Woo Lee, Jae-Beom Choi, Kwan-Wook Jung, Sung-Soo Choi, Seong-Jun Kim, Guang-Hai Jin, Ga-Young Kim, Jee-Hoon Kim
  • Patent number: 8569766
    Abstract: Disclosed is an organic light-emitting display device including a transparent substrate which includes a display portion and a pad portion formed in a region around the display portion, a first semiconductor layer formed on the display portion, a second semiconductor layer formed on the pad portion, and a transparent electrode formed on each of the first the second semiconductor layers, where the first and second semiconductor layers include the same material.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: October 29, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun Park, Chun-Gi You, June-Woo Lee
  • Publication number: 20130271440
    Abstract: An organic light emitting diode display includes a substrate, a first pixel and a second pixel on the substrate, the first pixel and the second pixel have different sizes, a first driving voltage line and a second driving voltage line connected to the first pixel and the second pixel, respectively, and the first driving voltage line is capable of applying a first driving voltage to the first pixel and the second driving voltage line is capable of applying a second driving voltage to the second pixel. The second pixel is bigger than the first pixel, and the second driving voltage is less than the first driving voltage.
    Type: Application
    Filed: September 12, 2012
    Publication date: October 17, 2013
    Inventors: Guan hai JIN, Jae-Beom CHOI, Kwan-Wook JUNG, June-Woo LEE, Hae-Yeon LEE, Moo-Jin KIM
  • Patent number: 8553017
    Abstract: A gate driving apparatus includes a first stage which outputs a first gate output signal, and a second stage which outputs a second gate output signal. The first stage includes: a transistor which includes a gate electrode, a source electrode and a drain electrode; and a dummy transistor which includes a dummy gate electrode, a dummy source electrode and a dummy drain electrode. The gate electrode receives the second gate output signal, and the dummy source electrode is connected to the source electrode or the drain electrode of the transistor and prevents static electricity from flowing to the first stage.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: October 8, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyung-Gi Jung, Jeong-Young Lee, June-Woo Lee, Sok Lee
  • Publication number: 20130256676
    Abstract: An organic light emitting diode (OLED) display includes a first electrode, an organic emission layer positioned on the first electrode, and a second electrode positioned on the organic emission layer. The OLED display includes a substrate, a thin film transistor including an active layer positioned on the substrate, a gate electrode positioned on the active layer and formed with the same layer as the first electrode, and a source electrode and a drain electrode positioned on the gate electrode and connected to the active layer, a pixel defining layer positioned between the source electrode and the drain electrode, and the second electrode, the pixel defining layer including a pixel opening exposing the first electrode and a pin hole opening exposing at least one of the source electrode and the drain electrode; and a coated portion filling the pin hole opening.
    Type: Application
    Filed: September 14, 2012
    Publication date: October 3, 2013
    Inventors: Guang hai JIN, Jae-Beom Choi, Kwan-Wook Jung, June-Woo Lee, Moo-Jin Kim, Hee-Kyung Kim
  • Publication number: 20130256723
    Abstract: An organic light emitting diode (OLED) display includes a light-emitting region including an organic emission layer and a non-light-emitting region neighboring the light-emitting region. The OLED display includes a first electrode positioned at the light-emitting region and including a plurality of division regions divided according to a virtual cutting line crossing the light-emitting region, an organic emission layer positioned on the first electrode, a second electrode positioned on the organic emission layer, a driving thin film transistor connected to the first electrode, and a plurality of input terminals positioned at the non-light-emitting region and respectively connecting between each of division regions and the driving thin film transistor.
    Type: Application
    Filed: September 12, 2012
    Publication date: October 3, 2013
    Inventors: Guang hai JIN, Jae-Beom CHOI, Kwan-Wook JUNG, June-Woo LEE, Moo-Jin KIM, Na-Young KIM
  • Publication number: 20130257437
    Abstract: A pixel includes an organic light emitting diode, a first transistor that is connected to a first power source and that supplies a driving current according to a corresponding data voltage to the organic light emitting diode, a second transistor that is connected to a scan line and that transmits the corresponding data voltage from a data line to a driving transistor according to a scan signal transmitted from the scan line, and a first capacitor including one electrode connected to a gate electrode of the first transistor. The first capacitor stores the corresponding data voltage as a first voltage and a size of the first capacitor is in a range of about 2 times to about 4 times a size of a gate insulating layer of the first transistor.
    Type: Application
    Filed: September 11, 2012
    Publication date: October 3, 2013
    Inventors: Guang hai JIN, Jae-Beom CHOI, Kwan-Wook JUNG, June-Woo LEE, Moo-Jin KIM, Jee-Hoon KIM
  • Publication number: 20130240914
    Abstract: An organic light emitting diode (OLED) display includes a substrate where a plurality of pixels are formed, a first pixel defining layer on the substrate, the first pixel defining layer dividing the plurality of pixels, a connection wire on the first pixel defining layer, the connection wire electrically connecting two adjacent pixels, and a second pixel defining layer on the first pixel defining layer, the second pixel defining layer covering the connection wire.
    Type: Application
    Filed: September 4, 2012
    Publication date: September 19, 2013
    Inventors: Guang Hai JIN, Jae-Beom CHOI, Kwan-Wook JUNG, June-Woo LEE, Moo-Jin KIM, Ga-Young KIM
  • Publication number: 20130243304
    Abstract: A method for testing an array, by using an array testing device for detecting a voltage distribution formed on an array substrate, includes resetting pixel voltages of a plurality of pixel circuits formed on the array substrate with a predetermined voltage, detecting the voltage distribution of the array substrate, generating a correction value for correcting the voltage distribution of the array substrate, and measuring a threshold voltage of a driving transistor included in the plurality of pixel circuits formed on the array substrate by applying the correction value.
    Type: Application
    Filed: August 9, 2012
    Publication date: September 19, 2013
    Inventors: Guang hai JIN, Jae-Beom Choi, Kwan-Wook Jung, June-Woo Lee, Seong-Jun Kim