Patents by Inventor Beohm-Rock Choi

Beohm-Rock 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).

  • Patent number: 9318537
    Abstract: The present invention relates to an organic light emitting device, and the organic light emitting device according to an exemplary embodiment of the present invention includes a blue subpixel that is larger than a red subpixel and a green subpixel. The red subpixel and the green subpixel have the same layered structure such that the red subpixel and the green subpixel are formed by using the same shadow mask.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: April 19, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Un-Cheol Sung, Beohm-Rock Choi
  • Patent number: 9287525
    Abstract: An exemplary embodiment described technology relates generally to an organic light emitting diode (OLED) display and a manufacturing method thereof. The organic light emitting diode (OLED) display according to an exemplary embodiment includes: a substrate; an encapsulation member; an organic light emitting element between the substrate and the encapsulation member; a middle sealing member including one side disposed between the substrate and the encapsulation member and another side extended from the one side to be bent and enclosing an edge of the encapsulation member; a first sealant sealing and combining the one side of the middle sealing member and the substrate to each other; a second sealant sealing and combining the other side of the middle sealing member and the encapsulation member to each other; and a getter at the one side of the middle sealing member and the encapsulation member.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: March 15, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Valeriy Prushinskiy, Won-Sik Hyun, Heung-Yeol Na, Min-Soo Kim, Beohm-Rock Choi
  • Patent number: 9234270
    Abstract: An electrostatic chuck, a thin film deposition apparatus including the electrostatic chuck, and a method of manufacturing an organic light emitting display apparatus using the thin film deposition apparatus. The electrostatic chuck includes: a first plate; a first common wire disposed on the first plate and electrically connected to a plus terminal of an electric power source; first electrode patterns electrically connected to the first common wire, separated by a distance from each other, and extending from the first common wire; a second common wire disposed on the first plate and electrically connected to a minus terminal of the electric power source; second electrode patterns electrically connected to the second common wire, separated by a distance from each other, and extending from the second common wire; a first additional wire electrically connected to the first common wire; and a second additional wire electrically connected to the second common wire.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: January 12, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Mook Choi, Jong-Heon Kim, Mu-Hyun Kim, Beohm Rock Choi
  • Publication number: 20150299843
    Abstract: Each of thin film deposition assemblies of a thin film deposition apparatus includes: a deposition source that includes a deposition material; a deposition source nozzle unit arranged at a side of the deposition source and including a plurality of deposition source nozzles arranged in a first direction; a patterning slit sheet arranged opposite to the deposition source nozzle unit and having a plurality of patterning slits arranged in the first direction; and a barrier plate assembly including a plurality of barrier plates arranged in the first direction, the barrier plate assembly being arranged between the deposition source nozzle unit and the patterning slit sheet. The thin film deposition apparatus and the substrate are separated from each other and are movable relative to each other. The deposition material includes a material to produce the thin film of a red (R), green (G) or blue (B) emission layer, or an auxiliary layer.
    Type: Application
    Filed: June 26, 2015
    Publication date: October 22, 2015
    Inventors: Jung-Bae SONG, Beohm-Rock CHOI, I, Sang-Pil LEE, Young-Rok SONG
  • Patent number: 9136310
    Abstract: Each of thin film deposition assemblies of a thin film deposition apparatus includes: a deposition source that includes a deposition material; a deposition source nozzle unit arranged at a side of the deposition source and including a plurality of deposition source nozzles arranged in a first direction; a patterning slit sheet arranged opposite to the deposition source nozzle unit and having a plurality of patterning slits arranged in the first direction; and a barrier plate assembly including a plurality of barrier plates arranged in the first direction, the barrier plate assembly being arranged between the deposition source nozzle unit and the patterning slit sheet. The thin film deposition apparatus and the substrate are separated from each other and are movable relative to each other. The deposition material includes a material to produce the thin film of a red (R), green (G) or blue (B) emission layer, or an auxiliary layer.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: September 15, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Bae Song, Beohm-Rock Choi, Sang-Pil Lee, Young-Rok Song
  • Publication number: 20150221892
    Abstract: An exemplary embodiment described technology relates generally to an organic light emitting diode (OLED) display and a manufacturing method thereof. The organic light emitting diode (OLED) display according to an exemplary embodiment includes: a substrate; an encapsulation member; an organic light emitting element between the substrate and the encapsulation member; a middle sealing member including one side disposed between the substrate and the encapsulation member and another side extended from the one side to be bent and enclosing an edge of the encapsulation member; a first sealant sealing and combining the one side of the middle sealing member and the substrate to each other; a second sealant sealing and combining the other side of the middle sealing member and the encapsulation member to each other; and a getter at the one side of the middle sealing member and the encapsulation member.
    Type: Application
    Filed: April 14, 2015
    Publication date: August 6, 2015
    Inventors: Valeriy Prushinskiy, Won-Sik Hyun, Heung-Yeol Na, Min-Soo Kim, Beohm-Rock Choi
  • Patent number: 9076980
    Abstract: An organic light-emitting display apparatus includes a thin film transistor including an active layer, a gate electrode, a source electrode, and a drain electrode, an organic light-emitting device including a pixel electrode connected to the thin film transistor, an intermediate layer including a light-emitting layer, and an opposed electrode, and a first wiring and a second wiring arranged in different layers on a substrate.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: July 7, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki-Nyeng Kang, Na-Young Kim, Keum-Nam Kim, Beohm-Rock Choi, Soo-Beom Jo, Kie-Hyun Nam, Young-Min Kim
  • Publication number: 20150171148
    Abstract: Each of thin film deposition assemblies of a thin film deposition apparatus includes: a deposition source that includes a deposition material; a deposition source nozzle unit arranged at a side of the deposition source and including a plurality of deposition source nozzles arranged in a first direction; a patterning slit sheet arranged opposite to the deposition source nozzle unit and having a plurality of patterning slits arranged in the first direction; and a barrier plate assembly including a plurality of barrier plates arranged in the first direction, the barrier plate assembly being arranged between the deposition source nozzle unit and the patterning slit sheet. The thin film deposition apparatus and the substrate are separated from each other and are movable relative to each other. The deposition material includes a material to produce the thin film of a red (R), green (G) or blue (B) emission layer, or an auxiliary layer.
    Type: Application
    Filed: November 14, 2014
    Publication date: June 18, 2015
    Inventors: Jung-Bae Song, Beohm-Rock Choi, Sang-Pil Lee, Young-Rok Song
  • Patent number: 9041047
    Abstract: An exemplary embodiment described technology relates generally to an organic light emitting diode (OLED) display and a manufacturing method thereof. The organic light emitting diode (OLED) display according to an exemplary embodiment includes: a substrate; an encapsulation member; an organic light emitting element between the substrate and the encapsulation member; a middle sealing member including one side disposed between the substrate and the encapsulation member and another side extended from the one side to be bent and enclosing an edge of the encapsulation member; a first sealant sealing and combining the one side of the middle sealing member and the substrate to each other; a second sealant sealing and combining the other side of the middle sealing member and the encapsulation member to each other; and a getter at the one side of the middle sealing member and the encapsulation member.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: May 26, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Valeriy Prushinskiy, Won-Sik Hyun, Heung-Yeol Na, Min-Soo Kim, Beohm-Rock Choi
  • Patent number: 9024523
    Abstract: An organic light emitting display apparatus includes a pixel part including a pixel electrode, a light emitting layer and an opposite electrode, and a contact part in which the opposite electrode contacts a power line, wherein a first thickness of the opposite electrode in the pixel part is different from a second thickness of the opposite electrode in the contact part.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: May 5, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: June-Woo Lee, Beohm-Rock Choi, Myung-Koo Hur, Jae-Ho Lee, Woo-Sik Jun, Hyun-Been Hwang
  • Publication number: 20150009106
    Abstract: A display apparatus including: a unit pixel including sub-pixels, each sub-pixel including an emission area including a light emitting element and a circuit area including a switching transistor to control the light emitting element; a scan line extending in a first direction and connected to the unit pixel; a branch line extending from the scan line in a second direction crossing the first direction, and connected to the each of the sub-pixels; and data lines extending in the second direction and respectively connected to the sub-pixels.
    Type: Application
    Filed: March 26, 2014
    Publication date: January 8, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: June-Woo LEE, Dong-Gyu Kim, Beohm-Rock Choi, Jae-Ho Lee, Myung-Koo Hur
  • Publication number: 20140354141
    Abstract: An organic light emitting display apparatus includes a pixel part including a pixel electrode, a light emitting layer and an opposite electrode, and a contact part in which the opposite electrode contacts a power line, wherein a first thickness of the opposite electrode in the pixel part is different from a second thickness of the opposite electrode in the contact part.
    Type: Application
    Filed: September 11, 2013
    Publication date: December 4, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: June-Woo Lee, Beohm-Rock Choi, Myung-Koo Hur, Jae-Ho Lee, Woo-Sik Jun, Hyun-Been Hwang
  • Patent number: 8894458
    Abstract: Each of thin film deposition assemblies of a thin film deposition apparatus includes: a deposition source that includes a deposition material; a deposition source nozzle unit arranged at a side of the deposition source and including a plurality of deposition source nozzles arranged in a first direction; a patterning slit sheet arranged opposite to the deposition source nozzle unit and having a plurality of patterning slits arranged in the first direction; and a barrier plate assembly including a plurality of barrier plates arranged in the first direction, the barrier plate assembly being arranged between the deposition source nozzle unit and the patterning slit sheet. The thin film deposition apparatus and the substrate are separated from each other and are movable relative to each other. The deposition material includes a material to produce the thin film of a red (R), green (G) or blue (B) emission layer, or an auxiliary layer.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: November 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Bae Song, Beohm-Rock Choi, Sang-Pil Lee, Young-Rok Song
  • Patent number: 8754406
    Abstract: An organic light emitting diode device includes a substrate, a transparent electrode disposed on the substrate, an emission layer disposed on the transparent electrode, a reflecting electrode disposed on the emission layer, and a gate insulating layer interposed between the substrate and the transparent electrode, the gate insulating layer being in contact with the transparent electrode and including a first inorganic dielectric layer having a thickness of about 1000 ? or less.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: June 17, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Bae Song, Sang-Pil Lee, Young-Rok Song, Beohm-Rock Choi
  • Patent number: 8628982
    Abstract: An apparatus for depositing and inspecting an organic light emitting display panel includes a depositor part configured to deposit thin film layers on a panel, the thin film layers including an anode layer, an organic film layer, and a cathode layer, and an inspector part configured to measure spectra of light reflected from the thin film layers, compare the measured spectra to reference spectra, and determine thickness correctness of individual thin film layers.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: January 14, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Un-Cheol Sung, Beohm-Rock Choi
  • Patent number: 8610347
    Abstract: An organic light emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a plurality of pixels in a matrix. The OLED display may include a substrate, a translucent layer formed on the substrate, a first electrode formed on the translucent layer, an organic light emitting member formed on the first electrode, and a second electrode formed on the organic light emitting member and including a reflective material. According to some aspects, the thickness of the organic light emitting member of the pixels forming the OLED display may be different than one another, or portions of each pixel may have different thickness for the organic light emitting members forming the pixel. With different thicknesses, the optical characteristics of the pixels forming the OLED display may be effectively compensated for luminance and color purity. As a result, the lateral viewing angle of an OLED display may be improved.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: December 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Rok Song, Mu-Hyun Kim, Beohm-Rock Choi, Jung-Bae Song, Sang-Pil Lee
  • Publication number: 20130299790
    Abstract: An organic light-emitting display apparatus includes a thin film transistor including an active layer, a gate electrode, a source electrode, and a drain electrode, an organic light-emitting device including a pixel electrode connected to the thin film transistor, an intermediate layer including a light-emitting layer, and an opposed electrode, and a first wiring and a second wiring arranged in different layers on a substrate.
    Type: Application
    Filed: May 3, 2013
    Publication date: November 14, 2013
    Inventors: Ki-Nyeng KANG, Na-Young KIM, Keum-Nam KIM, Beohm-Rock CHOI, Soo-Beom JO, Kie-Hyun NAM, Young-Min KIM
  • Patent number: 8471275
    Abstract: An organic light emitting device display, including a first electrode in red, green, and blue sub-pixels on a substrate, a hole injection layer above the substrate so as to cover the first electrode, a hole transport layer above the hole injection layer, an auxiliary layer between the hole injection layer and the hole transport layer in the red sub-pixel, a red light emission layer and a green light emission layer above the hole transport layer in the red sub-pixel and the green sub-pixel, the red light emission layer being between the green light emission layer and the hole transport layer, and a blue light emission layer above the hole transport layer in the blue sub-pixel.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: June 25, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Pil Lee, Young-Rok Song, Jung-Bae Song, Beohm-Rock Choi
  • Publication number: 20130146938
    Abstract: An exemplary embodiment described technology relates generally to an organic light emitting diode (OLED) display and a manufacturing method thereof. The organic light emitting diode (OLED) display according to an exemplary embodiment includes: a substrate; an encapsulation member; an organic light emitting element between the substrate and the encapsulation member; a middle sealing member including one side disposed between the substrate and the encapsulation member and another side extended from the one side to be bent and enclosing an edge of the encapsulation member; a first sealant sealing and combining the one side of the middle sealing member and the substrate to each other; a second sealant sealing and combining the other side of the middle sealing member and the encapsulation member to each other; and a getter at the one side of the middle sealing member and the encapsulation member.
    Type: Application
    Filed: June 27, 2012
    Publication date: June 13, 2013
    Inventors: Valeriy Prushinskiy, Won-Sik Hyun, Heung-Yeol Na, Min-Soo Kim, Beohm-Rock Choi
  • Patent number: 8427047
    Abstract: The present invention relates to an organic light emitting device including a first pixel, a second pixel, and a third pixel each displaying a color. Each pixel includes a reflecting member; a transflective member forming a micro-cavity along with the reflecting member; an organic light emitting member disposed between the reflecting member and the transflective member; a transparent electrode disposed between the reflecting member and the transflective member; and a compensation layer disposed between the reflecting member and the transflective member to form a predetermined distance between the reflecting member and the transflective member, wherein the distance between the reflecting member and the transflective member are substantially the same in the first pixel, the second pixel and the third pixel.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: April 23, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Beohm-Rock Choi, Un-Cheol Sung, Jung-Soo Rhee, Sang-Woo Lee, Soo-Yeon Lee