Patents by Inventor Ok-Keun Song

Ok-Keun Song 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: 9559332
    Abstract: An organic electroluminescence (EL) display panel includes a substrate, a thin film transistor on the substrate, an overcoat layer on the thin film transistor and containing an organic material, a first electrode on the overcoat layer, an organic light emitting layer on the first electrode, a second electrode on the organic light emitting layer, and a barrier layer between the overcoat layer and the first electrode and including a first region formed of a single layer and a second region formed of a multilayer.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: January 31, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Soo Lee, Ok Keun Song, Young Mo Koo, Se II Kim
  • Patent number: 9496317
    Abstract: A method of manufacturing an organic light emitting display apparatus by utilizing a deposition apparatus for forming an organic layer on a substrate includes: fixing the substrate to a mask assembly for forming a common layer or a mask assembly for forming a pattern layer in a loading unit; when the one or more deposition assemblies are separated from the substrate, forming an intermediate layer by depositing a deposition material discharged from the one or more deposition assemblies in a deposition unit of the deposition apparatus onto the substrate while the substrate is moved relative to the one or more deposition assemblies by a first conveyer unit; and separating the substrate on which the deposition is finished from the mask assembly for forming the common layer or the mask assembly for forming the pattern layer in an unloading unit.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: November 15, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Hwan Choi, Chi-Woo Kim, Gun-Shik Kim, Ok-Keun Song, Kee-Han Uh, Seong-Ho Jeong, You-Min Cha, Jae-Beom Choi, Young-Mo Koo, Keum-Nam Kim, Dae-Sung Choi
  • Publication number: 20160163768
    Abstract: An organic light emitting display including a substrate, a first electrode and a second electrode on the substrate and facing each other, at least two organic light emitting layers between the first electrode and the second electrode, and at least two color filters on the second electrode, the organic light emitting layers emitting a first color light, and the color filters emitting a second color light and a third color light.
    Type: Application
    Filed: May 14, 2015
    Publication date: June 9, 2016
    Inventors: Ok Keun SONG, Sung Soo LEE
  • Patent number: 9263692
    Abstract: Provided is an organic light emitting diode which can easily control color coordinates and improve a device's life span characteristic by using an auxiliary dopant having a higher band gap energy than that of a host, and preferably, having an absolute value of the highest occupied molecular orbital energy level equal to or higher than that of the host, or an absolute value of the lowest unoccupied molecular orbital energy level equal to or lower than that of the host. The organic light emitting diode includes a first electrode, an emission layer disposed on the first electrode and including a host, an emitting dopant and an auxiliary dopant, and a second electrode disposed on the emission layer. Here, the auxiliary dopant has a higher band gap energy than the host. A method of fabricating the organic light emitting diode is provided.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: February 16, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Jin Choi, Ok-Keun Song, Hye-In Jeong, Young-Mo Koo, Min-Woo Lee
  • Publication number: 20160013454
    Abstract: A light emitting structure includes a first hole injection layer, a first organic light emitting layer, a charge generation layer, a second hole injection layer, a second organic light emitting layer, an electron transfer layer, and a blocking member. The light emitting structure has first, second, and third sub-pixel regions. The first organic light emitting layer may be on the first hole injection layer. The charge generation layer may be on the first organic light emitting layer. The second hole injection layer may be on the charge generation layer. The second organic light emitting layer may be on the second hole injection layer. The electron transfer layer may be on the second organic light emitting layer. The blocking member may be at at least one of the first to the third sub-pixel regions.
    Type: Application
    Filed: September 18, 2015
    Publication date: January 14, 2016
    Inventors: Sung-Soo Lee, Ok-Keun Song, Se-Il Kim
  • Publication number: 20160005990
    Abstract: An organic light-emitting device comprises a first electrode, a second electrode, and an organic light-emitting layer disposed between the first electrode and the second electrode, and comprising at least a host material, a first dopant for emitting light of a first color and a second dopant for emitting light of a second color, which is different from the first color. The organic light-emitting layer is divided into a first region adjacent to the first electrode, a second region adjacent to the second electrode, and a third region between the first region and the second region. Only the second dopant is provided in at least one of the first region and the second region.
    Type: Application
    Filed: December 29, 2014
    Publication date: January 7, 2016
    Inventors: Sung Soo Lee, Young Mo Koo, Ok Keun Song, Woo Sik Jeon
  • Patent number: 9176327
    Abstract: Provided is a three-dimensional display. The display includes a substrate including a plurality of pixel areas; a barrier layer on a first surface of the substrate and at an area corresponding to a boundary between neighboring pixel areas of the plurality of pixel areas; a driving circuit layer on the barrier layer; and a display device layer on the driving circuit layer and forming pixels at positions corresponding to the plurality of pixel areas, wherein light emitted by the display device layer is emitted outside via a second surface of the substrate opposite to the first surface of the substrate.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: November 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Shin Lee, Ok-Keun Song, Yong-Han Lee, Byoung-Hee Park
  • Patent number: 9179128
    Abstract: An image sensing unit is disclosed. In one aspect, the sensing unit includes optical sensors for acquiring a two dimensional (2D) image from a subject and micro-structures for supporting the optical sensors and adjusting the heights of the optical sensors.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: November 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chan-Young Park, Ok-Keun Song
  • Patent number: 9172058
    Abstract: A light emitting structure includes a first hole injection layer, a first organic light emitting layer, a charge generation layer, a second hole injection layer, a second organic light emitting layer, an electron transfer layer, and a blocking member. The light emitting structure has first, second, and third sub-pixel regions. The first organic light emitting layer may be on the first hole injection layer. The charge generation layer may be on the first organic light emitting layer. The second hole injection layer may be on the charge generation layer. The second organic light emitting layer may be on the second hole injection layer. The electron transfer layer may be on the second organic light emitting layer. The blocking member may be at at least one of the first to the third sub-pixel regions.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: October 27, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Soo Lee, Ok-Keun Song, Se-II Kim
  • Patent number: 9172054
    Abstract: Provided is an organic light emitting display device. The organic light emitting display device comprises a substrate; a first electrode formed on the substrate and including a first sub-electrode and a second sub-electrode which have different reflectivities with respect to light wavelengths and are mutually stacked; an organic layer formed on the first electrode and including an organic light emitting layer; and a second electrode formed on the organic layer.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: October 27, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chan Young Park, Sung Jin Choi, Young Suk Cho, Ok Keun Song
  • Patent number: 9167657
    Abstract: An organic light emitting device includes a first electrode formed over a substrate; an intermediate layer that is formed over the first electrode and includes an organic light emitting layer; a second electrode that includes a central electrode unit disposed in a central region and a peripheral electrode unit disposed in a peripheral region, the intermediate layer being disposed between the first and second electrodes; and a power unit configured to apply voltages to the first electrode and the second electrode. The power unit is configured to apply different voltages to the first electrode, the central electrode unit, and the peripheral electrode unit.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: October 20, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Hoon Yim, Ok-Keun Song, Young-Mo Koo
  • Patent number: 9142799
    Abstract: A light emitting structure includes a first hole injection layer, a first organic light emitting layer, a charge generation layer, a second hole injection layer, a second organic light emitting layer, an electron transfer layer, and a blocking member. The light emitting structure has first, second, and third sub-pixel regions. The first organic light emitting layer may be on the first hole injection layer. The charge generation layer may be on the first organic light emitting layer. The second hole injection layer may be on the charge generation layer. The second organic light emitting layer may be on the second hole injection layer. The electron transfer layer may be on the second organic light emitting layer. The blocking member may be at at least one of the first to the third sub-pixel regions.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: September 22, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Soo Lee, Ok-Keun Song, Se-II Kim
  • Publication number: 20150179710
    Abstract: A method of manufacturing an organic light emitting display apparatus by utilizing a deposition apparatus for forming an organic layer on a substrate includes: fixing the substrate to a mask assembly for forming a common layer or a mask assembly for forming a pattern layer in a loading unit; when the one or more deposition assemblies are separated from the substrate, forming an intermediate layer by depositing a deposition material discharged from the one or more deposition assemblies in a deposition unit of the deposition apparatus onto the substrate while the substrate is moved relative to the one or more deposition assemblies by a first conveyer unit; and separating the substrate on which the deposition is finished from the mask assembly for forming the common layer or the mask assembly for forming the pattern layer in an unloading unit.
    Type: Application
    Filed: June 3, 2014
    Publication date: June 25, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min-Hwan Choi, Chi-Woo Kim, Gun-Shik Kim, Ok-Keun Song, Kee-Han Uh, Seong-Ho Jeong, You-Min Cha, Jae-Beom Choi, Young-Mo Koo, Keum-Nam Kim, Dae-Sung Choi
  • Patent number: 9029865
    Abstract: An organic light emitting diode display includes a substrate, a first electrode and an assistance electrode disposed on the substrate and separated from each other, an organic emission layer disposed on the first electrode, a contact hole which exposes the assistance electrode and is defined in the organic emission layer, and a second electrode disposed on the organic emission layer and electrically connected to the assistance electrode through the contact hole.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: May 12, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ok-Keun Song, Woong-Sik Kim
  • Publication number: 20150021566
    Abstract: An organic light emitting diode display includes a substrate, a first electrode and an assistance electrode disposed on the substrate and separated from each other, an organic emission layer disposed on the first electrode, a contact hole which exposes the assistance electrode and is defined in the organic emission layer, and a second electrode disposed on the organic emission layer and electrically connected to the assistance electrode through the contact hole.
    Type: Application
    Filed: December 26, 2013
    Publication date: January 22, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Ok-Keun SONG, Woong-Sik KIM
  • Publication number: 20140346453
    Abstract: An organic light emitting display device includes a first electrode on a substrate, an auxiliary electrode on the substrate, the auxiliary electrode being spaced apart from the first electrode, a protrusion on the auxiliary electrode, a pixel defining layer overlapping end portions of the first electrode and of the auxiliary electrode, the pixel defining layer separating the first electrode from the auxiliary electrode, an organic layer on the first electrode, and a second electrode on the organic layer, the protrusion electrically connecting the second electrode to the auxiliary electrode.
    Type: Application
    Filed: September 26, 2013
    Publication date: November 27, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Mo KOO, Ok-Keun SONG, Min-Woo LEE, Jae-Goo LEE
  • Patent number: 8895156
    Abstract: An organic light emitting diode that can improve a driving voltage and emission efficiency includes a first electrode, an organic layer formed on the first electrode and including an emitting layer and an electron transport layer that is doped with an organic n-type impurity, and a second electrode formed on the organic layer. The electron transport layer is made of C60. An organic light emitting display includes the organic light emitting diode.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: November 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae-Shick Kim, Ok-Keun Song, Hye-In Jeong, Young-Mo Koo
  • Patent number: 8890317
    Abstract: An organic light emitting display device includes a first electrode on a substrate, an auxiliary electrode on the substrate, the auxiliary electrode being spaced apart from the first electrode, a protrusion on the auxiliary electrode, a pixel defining layer overlapping end portions of the first electrode and of the auxiliary electrode, the pixel defining layer separating the first electrode from the auxiliary electrode, an organic layer on the first electrode, and a second electrode on the organic layer, the protrusion electrically connecting the second electrode to the auxiliary electrode.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: November 18, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Mo Koo, Ok-Keun Song, Min-Woo Lee, Jae-Goo Lee
  • Patent number: 8878167
    Abstract: An organic light emitting diode lighting equipment includes a transparent substrate main body, a first electrode formed on the substrate main body, a subsidiary electrode formed on the first electrode to partition the first electrode at a predetermined distance, an organic emissive layer formed on the first electrode, and a second electrode formed on the organic emissive layer. The subsidiary electrode has an inclined lateral side facing toward the organic emissive layer.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: November 4, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyuk-Sang Jun, Ok-Keun Song, Young-Mo Koo, Jung-Ha Lee, Il-Hwa Hong
  • Publication number: 20140203261
    Abstract: Provided is an organic light emitting diode which can easily control color coordinates and improve a device's life span characteristic by using an auxiliary dopant having a higher band gap energy than that of a host, and preferably, having an absolute value of the highest occupied molecular orbital energy level equal to or higher than that of the host, or an absolute value of the lowest unoccupied molecular orbital energy level equal to or lower than that of the host. The organic light emitting diode includes a first electrode, an emission layer disposed on the first electrode and including a host, an emitting dopant and an auxiliary dopant, and a second electrode disposed on the emission layer. Here, the auxiliary dopant has a higher band gap energy than the host. A method of fabricating the organic light emitting diode is provided.
    Type: Application
    Filed: March 20, 2014
    Publication date: July 24, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sung-Jin CHOI, Ok-Keun SONG, Hye-In JEONG, Young-Mo KOO, Min-Woo LEE