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: 8357938
    Abstract: An organic light-emitting display device that is transparent and prevents distortion of an image transmitted therethrough by preventing light from scattering during image display. The organic light-emitting display device comprises a plurality of pixels, in which each pixel includes a light transmission area, a light emitting area, and a light absorption area. The light transmission area is configured to pass visible light incident thereto. The light absorption is configured to absorb visible light incident thereto.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: January 22, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Gyu Yoon, Jae-Heung Ha, Kyu-Hwan Hwang, Young-Woo Song
  • Patent number: 8274090
    Abstract: An organic light-emitting display device includes: a substrate; pixels on a first side of the substrate, each of the pixels comprising a first region for emitting light and a second region for transmitting external light; pixel circuits on the first regions of the pixels, each of the pixel circuits comprising at least one thin film transistor; an insulating layer covering the pixel circuits; first electrodes on the insulating layer, spaced from each other on the first regions, and electrically connected to the pixel circuits; a second electrode opposite the first electrodes and formed throughout the first and second regions of all the pixels; an organic layer between the first electrodes and the second electrode; a sealing member facing the first side of the substrate; and an anti-reflection layer located on at least one of a second side of the substrate or an outer side of the sealing member.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: September 25, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-Ho Choi, Jin-Koo Chung, Chan-Young Park, Sung-Min Kim, Young-Woo Song, Sung-Chul Kim, Jae-Heung Ha, Kyu-Hwan Hwang, Seok-Gyu Yoon, Jong-Hyuk Lee
  • Publication number: 20120153286
    Abstract: An organic light emitting display device has high transmittancy to external light. The organic light emitting display device includes a substrate; a first wiring formed on the substrate in a first direction; second and third wirings formed on the substrate in a second direction; a first thin film transistor connected to the first and second wirings; a second thin film transistor connected to the first thin film transistor and the third wiring; and an organic light emitting display panel (OLED) connected to the second thin film transistor, wherein the second and third wirings are formed of graphene.
    Type: Application
    Filed: May 16, 2011
    Publication date: June 21, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Seok-Gyu Yoon, Kyu-Hwan Hwang, Jae-Heung Ha, Young-Woo Song, Jong-Hyuk Lee, Sung-Chul Kim
  • Publication number: 20120112628
    Abstract: An organic light-emitting device including an anode, a cathode having a double-layered structure, and an emission layer between the anode and the cathode.
    Type: Application
    Filed: September 20, 2011
    Publication date: May 10, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Seok-Gyu YOON, Kyu-Hwan Hwang, Jae-Heung Ha, Young-Woo Song, Jong-Hyuk Lee, Sung-Chul Kim
  • Publication number: 20120074435
    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: Application
    Filed: July 5, 2011
    Publication date: March 29, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jae-Heung Ha, Seok-Gyu Yoon, Kyu-Hwan Hwang, Young-Woo Song
  • Publication number: 20120049215
    Abstract: An organic light-emitting display device that is transparent and prevents distortion of an image transmitted therethrough by preventing light from scattering during image display. The organic light-emitting display device comprises a plurality of pixels, in which each pixel includes a light transmission area, a light emitting area, and a light absorption area. The light transmission area is configured to pass visible light incident thereto. The light absorption is configured to absorb visible light incident thereto.
    Type: Application
    Filed: June 8, 2011
    Publication date: March 1, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: SEOK-GYU YOON, JAE-HEUNG HA, KYU-HWAN HWANG, YOUNG-WOO SONG
  • Publication number: 20120049206
    Abstract: An organic light-emitting display device includes: a substrate; pixels on a first side of the substrate, each of the pixels comprising a first region for emitting light and a second region for transmitting external light; pixel circuits on the first regions of the pixels, each of the pixel circuits comprising at least one thin film transistor; an insulating layer covering the pixel circuits; first electrodes on the insulating layer, spaced from each other on the first regions, and electrically connected to the pixel circuits; a second electrode opposite the first electrodes and formed throughout the first and second regions of all the pixels; an organic layer between the first electrodes and the second electrode; a sealing member facing the first side of the substrate; and an anti-reflection layer located on at least one of a second side of the substrate or an outer side of the sealing member.
    Type: Application
    Filed: July 6, 2011
    Publication date: March 1, 2012
    Inventors: Jun-Ho Choi, Jin-Koo Chung, Chan-Young Park, Sung-Min Kim, Young-Woo Song, Sung-Chul Kim, Jae-Heung Ha, Kyu-Hwan Hwang, Seok-Gyu Yoon, Jong-Hyuk Lee
  • Patent number: 8120241
    Abstract: A display device includes a substrate, a white light source on the substrate, a dichroic layer between a viewing surface of the display device and the white light source, the dichroic layer being configured to allow light of a predetermined wavelength band to be transmitted therethrough, and a ΒΌ wavelength layer between the dichroic layer and the white light source.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: February 21, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Joon-Gu Lee, Young-Woo Song, Kyu-Hwan Hwang, Jong-Seok Oh, Jae-Heung Ha, Chul-Woo Park, Jong-Hyuk Lee
  • Publication number: 20120007055
    Abstract: An organic light emitting diode device includes a first electrode, a second electrode, and an emission layer disposed between the first and second electrodes. The first electrode includes a first layer and a second layer. The first layer includes ytterbium (Yb), samarium (Sm), lanthanum (La), yttrium (Y), calcium (Ca), strontium (Sr), cesium (Cs), ruthenium (Ru), barium (Ba), or a combination thereof and having a thickness ranging from about 40 to 200 ?. The second layer includes silver (Ag), aluminum (Al), copper (Cu), chromium (Cr), or a combination thereof and having a thickness ranging from about 100 to 250 ?.
    Type: Application
    Filed: December 16, 2010
    Publication date: January 12, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Yong-Tak KIM, Won-Jong Kim, Ji-Young Choung, Joon-Gu Lee, Jin-Baek Choi, Kyu-Hwan Hwang, Il-Soo Oh, Jong-Hyuk Lee
  • Publication number: 20120001184
    Abstract: A transparent organic light-emitting display device has an improved transmittance and a reduced voltage drop in an opposite electrode. The organic light-emitting display device includes: a first substrate having a transmitting region and a plurality of pixel regions separated from each other by the transmitting region interposed between the pixel regions; a plurality of pixel electrodes being located at the pixel regions, respectively; an opposite electrode facing the pixel electrodes and being at the transmitting region and the pixel regions; a second substrate facing the opposite electrode and being bonded to the first substrate; a first conductive unit being between the second substrate and the opposite electrode, opposite ends of the first conductive unit contacting the second substrate and the opposite electrode, respectively; and a second conductive unit facing the first conductive unit and contacting the opposite electrode that is between the first conductive unit and the second conductive unit.
    Type: Application
    Filed: June 21, 2011
    Publication date: January 5, 2012
    Inventors: Jae-Heung Ha, Kyu-Hwan Hwang, Seok-Gyu Yoon, Young-Woo Song, Jong-Hyuk Lee, Keum-Nam Kim, Young-In Hwang
  • Publication number: 20110309739
    Abstract: An organic light-emitting device including: a substrate; a first electrode disposed on the substrate; a second electrode disposed on the substrate and comprising silver (Ag); an emission layer between the first electrode and the second electrode; an electron injection layer between the emission layer and the second electrode and comprising a mixture of an alkali metal-containing compound and a first metal; and a capping layer disposed on the second electrode.
    Type: Application
    Filed: March 8, 2011
    Publication date: December 22, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Hyung-Jun Song, Kyu-Hwan Hwang, Chang-Ho Lee, Hee-Joo Ko, Seok-Gyu Yoon, Il-Soo Oh, Se-Jin Cho, Jin-Young Yun, Jong-Hyuk Lee, Yong-Tak Kim, Won-Jong Kim
  • Publication number: 20110273409
    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: Application
    Filed: April 12, 2011
    Publication date: November 10, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Chang-Ho Lee, Hee-Joo Ko, Il-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
  • Publication number: 20110241014
    Abstract: An organic light emitting display device includes a substrate having transmitting and pixel regions, the pixel regions being separated by the transmitting regions, at least one thin film transistor in each of the pixel regions, a plurality of transparent first conductive lines electrically connected to the thin film transistors and extending across the transmitting regions, a plurality of second conductive lines electrically connected to the thin film transistors and extending across the transmitting regions, a passivation layer, a plurality of pixel electrodes on the passivation layer, the pixel electrodes being separated and positioned to correspond to respective pixel regions, each of the pixel electrodes being electrically connected to and overlapping a corresponding thin film transistor, an opposite electrode overlapping the pixel electrodes in the transmitting and pixel regions, and an organic emission layer between the pixel electrodes and the opposite electrode.
    Type: Application
    Filed: April 1, 2011
    Publication date: October 6, 2011
    Inventors: Seok-Gyu Yoon, Jae-Heung Ha, Jong-Hyuk Lee, Young-Woo Song, Kyu-Hwan Hwang
  • Publication number: 20110220901
    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: March 7, 2011
    Publication date: September 15, 2011
    Inventors: Jae-Heung Ha, Kyu-Hwan Hwang, Seok-Gyu Yoon, Young-Woo Song, Jong-Hyuk Lee
  • Publication number: 20110221661
    Abstract: An organic light-emitting display device includes a substrate, the substrate having a plurality of transmitting regions, a plurality of thin film transistors, a plurality of conductive lines, a passivation layer, a plurality of pixel electrodes on the passivation layer, an opposite electrode facing the plurality of pixel electrodes, an organic layer disposed among the plurality of pixel electrodes and the opposite electrode, and a plurality of masking films disposed in the plurality of transmitting regions.
    Type: Application
    Filed: March 8, 2011
    Publication date: September 15, 2011
    Inventors: Seok-Gyu Yoon, Kyu-Hwan Hwang, Jae-Heung Ha, Young-Woo Song, Jong-Hyuk Lee
  • Publication number: 20110220900
    Abstract: An organic light-emitting display apparatus includes a substrate, a plurality of pixel electrodes formed on the substrate, a counter electrode formed to cover all of the plurality of pixel electrodes, organic light emitting layers disposed between the plurality of pixel electrodes and the counter electrode, an encapsulation substrate disposed above the substrate to cover the counter electrode, a sealant formed along edges of the substrate and the encapsulation substrate to seal a space formed between the substrate and the encapsulation substrate, a filler filled in the space formed between the substrate and the encapsulation substrate, and bus electrodes disposed on an inner surface of the encapsulation substrate facing the counter electrode. Each of the bus electrodes includes projecting portions and a base portion connecting the projecting portions to each other.
    Type: Application
    Filed: March 10, 2011
    Publication date: September 15, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jae-Heung Ha, Kyu-Hwan Hwang, Seok-Gyu Yoon, Young-Woo Song, Jong-Hyuk Lee
  • Publication number: 20110204369
    Abstract: An organic light-emitting display device which is transparent by improving a transmittance in transmitting regions and which reduces a voltage drop in an opposite electrode comprises: a substrate having a transmitting region and pixel regions separated from each other by the transmitting region; thin film transistors positioned on the substrate and disposed in the pixel regions, respectively; a passivation layer covering the thin film transistors, formed in the transmitting region and the pixel regions, and having a first opening formed in a location corresponding to at least a portion of the transmitting region; pixel electrodes formed on the passivation layer so as to be electrically connected to the thin film transistors, respectively, located in the pixel regions, and disposed so as to overlap and cover the thin film transistors, respectively; an opposite electrode facing the pixel electrodes, formed so as to be able to transmit light, and located in the transmitting region and the pixel regions; an organ
    Type: Application
    Filed: February 14, 2011
    Publication date: August 25, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jae-Heung Ha, Kyu-Hwan Hwang, Seok-Gyu Yoon, Young-Woo Song, Jong-Hyuk Lee, Jun-Ho Choi, Jin-Koo Chung
  • Publication number: 20110186846
    Abstract: A transparent organic light emitting display device having improved transmittance comprises: a first substrate having a transmitting region and a plurality of pixel regions separated from each other by the transmitting region; thin film transistors positioned on a first surface of the first substrate and disposed in the pixel regions of the substrate; a passivation layer covering the thin film transistors; a plurality of pixel electrodes, formed on the passivation layer so as to be electrically connected to the thin film transistors, located in the pixel regions, and overlapping and covering the thin film transistors; an opposite electrode facing the pixel electrodes, formed to be able to transmit light, and located in the transmitting region and the pixel regions; an organic emission layer interposed between the pixel electrode and the opposite electrode to emit light; a second substrate facing the opposite electrode and bonded to the first substrate; and a conduction unit interposed between the second subst
    Type: Application
    Filed: January 27, 2011
    Publication date: August 4, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jae-Heung Ha, Kyu-Hwan Hwang, Young-Woo Song, Seok-Gyu Yoon, Jong-Hyuk Lee, Yoon-Hyeung Cho
  • Publication number: 20110175097
    Abstract: A transparent organic light emitting display device having an improved transmittance, in which transmittance of external light is increased, the organic light emitting display device including: a substrate having transmitting regions interposed between pixel regions; thin film transistors positioned on a first surface of the substrate and respectively disposed in the pixel regions of the substrate; a passivation layer covering thin film transistors; pixel electrodes formed on the passivation layer and respectively electrically connected to the thin film transistors, the pixel electrodes are respectively located in an area corresponding to the pixel regions, and are disposed to respectively overlap and cover the thin film transistors; an opposite electrode facing the pixel electrodes and formed to be able to transmit light, the opposite electrode is located in the transmitting regions and the pixel regions and includes a first opening formed on a location corresponding to at least a portion of respective ones
    Type: Application
    Filed: January 20, 2011
    Publication date: July 21, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Young-Woo SONG, Jong-Hyuk Lee, Chaun-Gi Choi, Kyu-Hwan Hwang, Seok-Gyu Yoon, Jae-Heung Ha
  • Publication number: 20110169720
    Abstract: An organic light emitting display device that can prevent distortion of an image transmitted therethrough by preventing light scattering. The organic light emitting display device includes a substrate in which a plurality of transmitting regions and a plurality of pixel regions are defined. The plurality of pixel regions are spaced apart from each other by the transmitting regions. A passivation layer is formed in all the plurality of transmitting regions and the plurality of pixel regions. A first aperture is formed in a location on the passivation layer, which corresponds to an at least part of the plurality of transmitting regions; a plurality of pixel electrodes that are formed on the passivation layer and are disposed to overlap and cover the thin film transistors. An opposite electrode formed to face the plurality of pixel electrodes and to allow light to pass therethrough. An organic emission layer is interposed between the plurality of pixel electrodes and the opposite electrode to emit light.
    Type: Application
    Filed: December 29, 2010
    Publication date: July 14, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Kyu-Hwan HWANG, Seok-Gyu YOON, Jae-Heung HA, Young-Woo SONG, Jong-Hyuk LEE