Patents by Inventor Kyu-Hwan Hwang

Kyu-Hwan Hwang 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: 9627644
    Abstract: In an aspect, an organic light emitting diode device including a first electrode, a second electrode facing the first electrode, and an emission layer positioned between the first electrode and second electrode, wherein the first electrode includes samarium (Sm) is provided.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: April 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Ra Jung, Kyu-Hwan Hwang, Seok-Gyu Yoon, Eung-Do Kim, Dong-Chan Kim, Won-Jong Kim, Young-Woo Song, Jong-Hyuk Lee, Sung-Chul Kim
  • Patent number: 9583709
    Abstract: A mask for forming an organic layer pattern, the mask including a photomask having a first substrate and a reflecting layer on the first substrate; and a donor substrate on the photomask and separated therefrom, the donor substrate including a second substrate and an absorption part on the second substrate, wherein the photomask comprises a reflecting part configured to reflect light incident to the photomask and a light concentrating part configured to concentrate the light and transmit the light to the donor substrate.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: February 28, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Sung Bang, Jae Sik Kim, Yeon Hwa Lee, Joon Gu Lee, Ji Young Choung, Jin Baek Choi, Kyu Hwan Hwang, Young Woo Song
  • Patent number: 9560696
    Abstract: A thermal treatment method for a display apparatus includes providing an acceptor substrate on a substrate stage, providing on the acceptor substrate a pattern mask including a transfer layer, irradiating a flash light beam onto the pattern mask from a plurality of flash lamps, and transferring the transfer layer to the acceptor substrate. The plurality of flash lamps are symmetrically provided with respect to the acceptor substrate and are configured to irradiate flash light beams.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: January 31, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Sik Kim, Hyun-Sung Bang, Sung-Soon Im, Ji-Young Choung, Kyu-Hwan Hwang
  • Patent number: 9548470
    Abstract: In an aspect, an organic light emitting diode device including a first electrode, a second electrode facing the first electrode, and an emission layer positioned between the first electrode and second electrode, wherein the first electrode includes samarium (Sm) is provided.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: January 17, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Ra Jung, Kyu-Hwan Hwang, Seok-Gyu Yoon, Eung-Do Kim, Dong-Chan Kim, Won-Jong Kim, Young-Woo Song, Jong-Hyuk Lee, Sung-Chul Kim
  • Patent number: 9450200
    Abstract: An organic light emitting diode includes a first electrode including a first electrode including a reflective metal layer formed of a light-reflective metal, an upper transparent conductive layer positioned on the reflective metal layer, and a protective layer positioned on the upper transparent conductive layer; an organic emission layer positioned on the first electrode; and a second electrode positioned on the organic emission layer, wherein the upper transparent conductive layer is amorphous.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: September 20, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Chan Kim, Jong-Hyuk Lee, Young-Woo Song, Won-Jong Kim, Kyu-Hwan Hwang, Seok-Gyu Yoon, Eung-Do Kim, Bo-Ra Jung, Dong-Kyu Seo
  • Publication number: 20160248050
    Abstract: Disclosed is a deposition apparatus including: a deposition source heating a deposition material filled therein to vaporize the deposition material and including a plurality of nozzles spraying the vaporized deposition material toward a counter substrate; and a structure disposed between the deposition source and the substrate and including a plurality of angle adjustment plates arranged to have an opening in order to guide a movement direction of the deposition material sprayed from the nozzles, in which the angle adjustment plate is subjected to coating treatment by a self-assembled monolayer (SAM). Thereby, when a continuous deposition operation is performed, an organic material is not stacked on a structure such as an angle limitation plate or the angle adjustment plate.
    Type: Application
    Filed: January 25, 2016
    Publication date: August 25, 2016
    Inventors: Jae Sik KIM, Hyun Sung BANG, Kyu Hwan HWANG
  • Publication number: 20160211460
    Abstract: An organic light emitting diode includes: a first electrode; a second electrode facing the first electrode; a light emission layer between the first electrode and the second electrode; an electron injection layer between the second electrode and the light emission layer; and a buffer layer between the electron injection layer and the second electrode, where the electron injection layer includes a dipolar material and a first metal, and the buffer layer includes a metal having a work function of 4.0 eV or less.
    Type: Application
    Filed: August 21, 2015
    Publication date: July 21, 2016
    Inventors: Seok Gyu Yoon, Dong Chan Kim, Eung Do Kim, Bo Ra Jung, Kyu Hwan Hwang, Sung Chul Kim, Won-Jong Kim, Young-Woo Song, Jong Hyuk Lee
  • Patent number: 9299950
    Abstract: An organic light emitting display apparatus includes a lower substrate and an upper substrate. The lower substrate includes a light emitting device having an organic emission layer between first and second electrodes, and an auxiliary electrode under and electrically connected to the second electrode. The upper substrate includes an embossing member contacting the second electrode. The embossing member is coupled to the upper substrate to face the lower substrate and applies a pressure to establish an electrical connection between the auxiliary electrode and the second electrode.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: March 29, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Woo Song, Jin-Koo Chung, Kyu-Hwan Hwang
  • Publication number: 20160087238
    Abstract: An organic light emitting display apparatus, including a first electrode; a second electrode on the first electrode, the second electrode including silver and magnesium; an organic emission layer between the first electrode and the second electrode; a metal layer between the organic emission layer and the second electrode; and a barrier layer between the organic emission layer and the second electrode.
    Type: Application
    Filed: December 8, 2015
    Publication date: March 24, 2016
    Inventors: Seok-Gyu YOON, Kyu-Hwan HWANG, Dong-Chan KIM, Eung-Do KIM, Dong-Kyu SEO, Bo-Ra JUNG, Won-Jong KIM, Young-Woo SONG, Eui-Jin YOO, Jong-Hyuk LEE
  • Publication number: 20160043156
    Abstract: An organic light-emitting display device includes a first substrate having transmitting regions and pixel regions separated from each other by the transmitting regions, a plurality of thin film transistors on the first substrate in the pixel regions, a passivation layer covering the plurality of thin film transistors, a plurality of pixel electrodes on the passivation layer and electrically connected to the thin film transistors, the pixel electrodes being in the pixel regions and overlapping the thin film transistors, an opposite electrode in the transmitting regions and the pixel regions, the opposite electrode facing the plurality of pixel electrodes and being configured to transmit light, an organic emission layer interposed between the pixel electrodes and the opposite electrode, and a color filter in corresponding pixel regions.
    Type: Application
    Filed: October 15, 2015
    Publication date: February 11, 2016
    Inventors: Jae-Heung HA, Kyu-Hwan HWANG, Seok-Gyu YOON, Young-Woo SONG, Jong-Hyuk LEE
  • Patent number: 9257672
    Abstract: An organic light emitting display apparatus, including a first electrode; a second electrode on the first electrode, the second electrode including silver and magnesium; an organic emission layer between the first electrode and the second electrode; a metal layer between the organic emission layer and the second electrode; and a barrier layer between the organic emission layer and the second electrode.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: February 9, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seok-Gyu Yoon, Kyu-Hwan Hwang, Dong-Chan Kim, Eung-Do Kim, Dong-Kyu Seo, Bo-Ra Jung, Won-Jong Kim, Young-Woo Song, Eui-Jin Yoo, Jong-Hyuk Lee
  • Patent number: 9231224
    Abstract: An organic light emitting diode (OLED) display is provided. An OLED display in accordance with an exemplary embodiment may include a substrate including a first subpixel, a second subpixel, and a third subpixel, a first electrode disposed on each of the first subpixel, the second subpixel, and the third subpixel, a second electrode facing the first electrode, a first common layer disposed on the first subpixel and the second subpixel, a first emission layer and a second emission layer disposed on the first common layer, a second common layer disposed on the third subpixel, and a third emission layer disposed on the second common layer. The first common layer may include a first doping layer and a second doping layer disposed on the first doping layer. Each of the doping layers may including a p-type dopant, and the second common layer may be formed as a single layer.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: January 5, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seok-Gyu Yoon, Kyu-Hwan Hwang, Eung-Do Kim, Dong-Chan Kim, Dong-Kyu Seo, Bo-Ra Jung, Won-Jong Kim, Young-Woo Song, Jong-Hyuk Lee, Da-Hea Im
  • Publication number: 20150372259
    Abstract: A thermal treatment method for a display apparatus includes providing an acceptor substrate on a substrate stage, providing on the acceptor substrate a pattern mask including a transfer layer, irradiating a flash light beam onto the pattern mask from a plurality of flash lamps, and transferring the transfer layer to the acceptor substrate. The plurality of flash lamps are symmetrically provided with respect to the acceptor substrate and are configured to irradiate flash light beams.
    Type: Application
    Filed: November 6, 2014
    Publication date: December 24, 2015
    Inventors: Jae-Sik Kim, Hyun-Sung Bang, Sung-Soon Im, Ji-Young Choung, Kyu-Hwan Hwang
  • Patent number: 9219103
    Abstract: An organic light emitting diode display is disclosed. The display includes some pixel areas which are opaque and some pixel areas which are partially opaque and partially transparent. Selectively displaying the light emission of the pixel areas allows for control of the relative brightness of a displayed image and an object behind the display.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: December 22, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-Ho Lee, Hee-Joo Ko, II-Soo Oh, Se-Jin Cho, Jin-Young Yun, Hyung-Jun Song, Young-Woo Song, Kyu-Hwan Hwang, Seok-Gyu Yoon, Jae-Heung Ha, Jong-Hyuk Lee
  • Patent number: 9165985
    Abstract: An organic light-emitting display device includes a first substrate having transmitting regions and pixel regions separated from each other by the transmitting regions, a plurality of thin film transistors on the first substrate in the pixel regions, a passivation layer covering the plurality of thin film transistors, a plurality of pixel electrodes on the passivation layer and electrically connected to the thin film transistors, the pixel electrodes being in the pixel regions and overlapping the thin film transistors, an opposite electrode in the transmitting regions and the pixel regions, the opposite electrode facing the plurality of pixel electrodes and being configured to transmit light, an organic emission layer interposed between the pixel electrodes and the opposite electrode, and a color filter in corresponding pixel regions.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: October 20, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Heung Ha, Kyu-Hwan Hwang, Seok-Gyu Yoon, Young-Woo Song, Jong-Hyuk Lee
  • Patent number: 9159772
    Abstract: An organic light emitting display is disclosed. In one embodiment, the display includes 1) a substrate, 2) a plurality of pixels formed on the substrate, wherein each of the pixels comprises at least one circuit region including i) a first light emission area, ii) a second light emission area iii) at least one transmission area transmitting external light, and iv) a pixel circuit unit and 3) a first pixel electrode formed in the first light emission area and electrically connected to the pixel circuit unit, wherein the first pixel electrode comprises a first transparent conductive layer and a reflective layer.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: October 13, 2015
    Assignee: Samsung Display Co., Inc.
    Inventors: Jae-Heung Ha, Seok-Gyu Yoon, Kyu-Hwan Hwang, Young-Woo Song
  • Publication number: 20150270486
    Abstract: A mask for forming an organic layer pattern, the mask including a photomask having a first substrate and a reflecting layer on the first substrate; and a donor substrate on the photomask and separated therefrom, the donor substrate including a second substrate and an absorption part on the second substrate, wherein the photomask comprises a reflecting part configured to reflect light incident to the photomask and a light concentrating part configured to concentrate the light and transmit the light to the donor substrate.
    Type: Application
    Filed: November 4, 2014
    Publication date: September 24, 2015
    Inventors: Hyun Sung Bang, Jae Sik Kim, Yeon Hwa Lee, Joon Gu Lee, Ji Young Choung, Jin Baek Choi, Kyu Hwan Hwang, Young Woo Song
  • Publication number: 20150255744
    Abstract: An organic light emitting diode includes a first electrode including a first electrode including a reflective metal layer formed of a light-reflective metal, an upper transparent conductive layer positioned on the reflective metal layer, and a protective layer positioned on the upper transparent conductive layer; an organic emission layer positioned on the first electrode; and a second electrode positioned on the organic emission layer, wherein the upper transparent conductive layer is amorphous.
    Type: Application
    Filed: May 18, 2015
    Publication date: September 10, 2015
    Inventors: Dong-Chan KIM, Jong-Hyuk LEE, Young-Woo SONG, Won-Jong KIM, Kyu-Hwan HWANG, Seok-Gyu YOON, Eung-Do KIM, Bo-Ra JUNG, Dong-Kyu SEO
  • Patent number: 9117779
    Abstract: An organic light-emitting display device includes a first substrate having transmitting regions and pixel regions separated from each other by the transmitting regions, a plurality of thin film transistors on the first substrate in the pixel regions, a passivation layer covering the plurality of thin film transistors, a plurality of pixel electrodes on the passivation layer and electrically connected to the thin film transistors, the pixel electrodes being in the pixel regions and overlapping the thin film transistors, an opposite electrode in the transmitting regions and the pixel regions, the opposite electrode facing the plurality of pixel electrodes and being configured to transmit light, an organic emission layer interposed between the pixel electrodes and the opposite electrode, and a color filter in corresponding pixel regions.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: August 25, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Heung Ha, Kyu-Hwan Hwang, Seok-Gyu Yoon, Young-Woo Song, Jong-Hyuk Lee
  • Patent number: 9099416
    Abstract: An organic light-emitting device including a first sub-pixel, a second sub-pixel, and a third sub-pixel on a substrate; a plurality of first electrodes in the first sub-pixel, the second sub-pixel, and the third sub-pixel, respectively; a second electrode being a sub-common layer to the first sub-pixel and the second sub-pixel and facing the first electrodes of the first sub-pixel and the second sub-pixel; and a third electrode in the third sub-pixel and facing the first electrode of the third sub-pixel is disclosed.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: August 4, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Ra Jung, Seok-Gyu Yoon, Dong-Chan Kim, Won-Jong Kim, Eung-Do Kim, Dong-Kyu Seo, Da-Hea Im, Kyu-Hwan Hwang, Young-Woo Song, Jong-Hyuk Lee