Patents by Inventor Jae-Hwan Oh

Jae-Hwan Oh 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).

  • Publication number: 20130153939
    Abstract: An organic light emitting display device in which an upper electrode and power supply lines are connected through through-holes such that charges can be smoothly supplied to the upper electrode of the organic light emitting display device, making it possible to improve light emitting efficiency.
    Type: Application
    Filed: August 21, 2012
    Publication date: June 20, 2013
    Inventors: Won-Kyu Lee, June-Woo Lee, Young-Jin Chang, Jae-Hwan Oh, Seong-Hyun Jin
  • Publication number: 20130146878
    Abstract: An organic light-emitting display apparatus includes a buffer layer that is on a substrate and includes nanoparticles including nickel (Ni), a pixel electrode on the buffer layer, an organic emission layer on the pixel electrode, and an opposite electrode on the organic emission layer. A method of manufacturing the organic light-emitting display apparatus is provided.
    Type: Application
    Filed: July 11, 2012
    Publication date: June 13, 2013
    Inventors: Jae-Hwan Oh, Yeoung-Jin Chang, Seong-Hyun Jin, Won-Kyu Lee, Jae-Beom Choi
  • Patent number: 8455337
    Abstract: Provided are a crystallization apparatus and method, which prevent cracks from being generated, a method of manufacturing a thin film transistor (TFT), and a method of manufacturing an organic light emitting display apparatus. The crystallization apparatus includes a chamber for receiving a substrate, a first flash lamp and a second flash lamp, which are disposed facing each other within the chamber, wherein amorphous silicon layers are disposed on a first surface of the substrate facing the first flash lamp and a second surface of the substrate facing the second flash lamp, respectively.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: June 4, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong-Hyun Jin, Young-Jin Chang, Jae-Hwan Oh, Won-Kyu Lee
  • Publication number: 20130134450
    Abstract: An organic light emitting display apparatus including sub pixels, each of the sub pixels including: first and second electrodes, the second electrode extending over the first electrode; and an intermediate layer disposed between the first and second electrodes, the intermediate layer including an emission layer, wherein a first portion of the first electrode, the second electrode, and the intermediate layer extends within a weak resonance region, the weak resonance region being configured to induce a first resonance of light generated by the emission layer between the first and second electrodes, and a second portion of the first electrode, the second electrode, and the intermediate layer extends within a strong resonance region, the strong resonance region being configured to induce a second resonance of light generated by the emission layer between the first and second electrodes, the second resonance being stronger than the first resonance.
    Type: Application
    Filed: May 29, 2012
    Publication date: May 30, 2013
    Inventors: Yeoung-Jin CHANG, Jae-Hwan OH, Seong-Hyun JIN, Won-Kyu KEE
  • Publication number: 20130056710
    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: Application
    Filed: March 22, 2012
    Publication date: March 7, 2013
    Inventors: Jae-Hwan Oh, Young-Jin Chang, Seong-Hyun Jin, Se-Hun Park, June-Woo Lee, Kwang-Hae Kim, Jong-Hyun Choi, Kwan-Kyu Lee, Won-Kyu Lee, Jae-Beom Choi
  • Publication number: 20130015459
    Abstract: A thin film transistor (TFT) array substrate includes a TFT on a substrate, the TFT including an active layer, gate electrode, source electrode, drain electrode, first insulating layer between the active layer and the gate electrode, and second insulating layer between the gate electrode and the source and drain electrodes; a pixel electrode on the first insulating layer and the second insulating layer, the pixel electrode being connected to one of the source electrode and drain electrode; a capacitor including a lower electrode on a same layer as the gate electrode and an upper electrode including the same material as the pixel electrode; a third insulating layer directly between the second insulating layer and the pixel electrode and between the lower electrode and the upper electrode; and a fourth insulating layer covering the source electrode, the drain electrode, and the upper electrode, and exposing the pixel electrode.
    Type: Application
    Filed: December 12, 2011
    Publication date: January 17, 2013
    Inventors: June-Woo Lee, Jae-Beom Choi, Kwan-Wook Jung, Jae-Hwan Oh, Seong-Hyun Jin, Kwang-Hae Kim, Jong-Hyun Choi
  • Publication number: 20130001564
    Abstract: An organic light-emitting display device including a TFT comprising an active layer, a gate electrode comprising a lower gate electrode and an upper gate electrode, and source and drain electrodes insulated from the gate electrode and contacting the active layer; an organic light-emitting device electrically connected to the TFT and comprising a pixel electrode formed in the same layer as where the lower gate electrode is formed; and a pad electrode electrically coupled to the TFT or the organic light emitting device and comprising a first pad electrode formed in the same layer as in which the lower gate electrode is formed, a second pad electrode formed in the same layer as in which the upper gate electrode is formed, and a third pad electrode comprising a transparent conductive oxide, the first, second, and third pad electrodes being sequentially stacked.
    Type: Application
    Filed: December 1, 2011
    Publication date: January 3, 2013
    Inventors: Jong-Hyun Choi, Jae-Hwan Oh
  • Publication number: 20120306939
    Abstract: An array test method of an organic light emitting diode (OLED) display substrate is provided. The OLED display substrate includes a plurality of pixel circuits. Each pixel circuit includes an anode, a first transistor for transmitting a data signal that controls an amount of light emission of an OLED according to a scan signal, a driving transistor for receiving the data signal, generating a driving current corresponding to the data signal, and transmitting the driving current to the OLED, and a second transistor for diode-connecting a gate electrode and a drain electrode of the driving transistor.
    Type: Application
    Filed: April 17, 2012
    Publication date: December 6, 2012
    Inventors: Jae-Beom Choi, Won-Kyu Lee, Jae-Hwan Oh, Young-Jin Chang, Seong-Hyun Jin
  • Publication number: 20120168745
    Abstract: In a photosensor and a method of manufacturing the same, the photosensor comprises: an intrinsic silicon layer formed on a substrate; a P-type doped region formed in a same plane with the intrinsic silicon layer; and an oxide semiconductor layer formed on or under the intrinsic silicon layer, and overlapping an entire region of the intrinsic silicon layer.
    Type: Application
    Filed: September 22, 2011
    Publication date: July 5, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jae-Hwan Oh, Won-Kyu Lee, Seong-Hyun Jin, Young-Jin Chang, Jae-Beom Choi
  • Publication number: 20120148048
    Abstract: A method for encrypting content includes using a plurality of different encryption schemes to produce encrypted content. Encryption information is provided so as to indicate which of the plurality of different encryption schemes is used on portions of the content that was encrypted. Encryption information and the encrypted content are both sent as a content stream to another device. The decryption involves using the encryption information to help control the decryption so that the correct one of a plurality of different decryption schemes is applied to the proper portions of the encrypted content.
    Type: Application
    Filed: June 1, 2010
    Publication date: June 14, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Bo Oh, Ji-Sung Oh, Jae-Hwan Oh
  • Publication number: 20120104382
    Abstract: A photo diode includes an intrinsic region on a substrate, a P+ doping region in a first portion of the intrinsic region, and an oxide semiconductor region. The oxide semiconductor region is spaced apart from the P+ doping region on a second portion of the intrinsic region and the second portion of the intrinsic region is different from the first portion of the intrinsic region.
    Type: Application
    Filed: September 8, 2011
    Publication date: May 3, 2012
    Inventors: Won-Kyu Lee, Jae-Beom Choi, Jae-Hwan Oh, Young-Jin Chang, Seong-Hyun Jin
  • Publication number: 20120107984
    Abstract: A laser crystallization system and a method of manufacturing a display apparatus using the laser crystallization system are disclosed. In one embodiment, the system includes i) a mother substrate in which first, second, and third display regions and ii) a stage for supporting the mother substrate and moving in first and second directions perpendicular to each other. The embodiment also includes i) a first laser irradiation unit for irradiating a first laser beam having a width greater than or identical to a width of a side of one of the first, second, and third display regions in the first direction and ii) a second laser irradiation unit spaced apart from the first laser irradiation unit and irradiating a second laser beam having a width greater than or identical to the width of the one side in the first direction.
    Type: Application
    Filed: October 12, 2011
    Publication date: May 3, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jae-Hwan Oh, Jae-Beom Choi, Won-Kyu Lee, Young-Jin Chang, Seong-Hyun Jin
  • Publication number: 20120061624
    Abstract: A paste for solar cell electrodes and a solar cell using the same, the paste including a conductive powder; glass frit; an organic vehicle; and metal oxide particles, the metal oxide particles having a nanometer scale particle size distribution having an average particle diameter (D50) of about 15 nm to about 50 nm and a micron scale particle size distribution having an average particle diameter (D50) of about 0.1 ?m to about 2 ?m.
    Type: Application
    Filed: February 28, 2011
    Publication date: March 15, 2012
    Inventors: Seok Hyun Jung, Jung Chul Lee, Jae Hwan Oh, Jae Ho Kim
  • Publication number: 20120056179
    Abstract: A photo sensor, a method of manufacturing the photo sensor, and a display apparatus, the photo sensor including a substrate; a light receiving unit on the substrate, the light receiving unit including an amorphous semiconductor material; a first adjacent unit and a second adjacent unit formed as one body with the light receiving unit, the first adjacent unit and the second adjacent unit being separated from each other by the light receiving unit; a first photo sensor electrode electrically connected to the first adjacent unit; and a second photo sensor electrode electrically connected to the second adjacent unit, wherein at least one of the first adjacent unit and the second adjacent unit includes a crystalline semiconductor material.
    Type: Application
    Filed: August 16, 2011
    Publication date: March 8, 2012
    Inventors: Won-Kyu Lee, Jae-Hwan Oh, Seong-Hyun Jin, Young-Jin Chang, Jae-Beom Choi
  • Publication number: 20120043546
    Abstract: Disclosed is a method of manufacturing an organic light-emitting display device capable of improving efficiency of a laser generator used for crystallization of amorphous silicon. The method crystallizes amorphous silicon selectively to provide an organic light-emitting display device that includes channel area of a pixel contains polycrystalline silicon and storage area of the pixel contains amorphous silicon.
    Type: Application
    Filed: July 14, 2011
    Publication date: February 23, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: JAE-HWAN OH, SEONG-HYUN JIN, YOUNG-JIN CHANG, WON-KYU LEE, JAE-BEOM CHOI, CHEOL-HO PARK
  • Publication number: 20120037855
    Abstract: An aluminum paste and a solar cell, the aluminum paste including aluminum powder; an organic vehicle; and antimony oxide, the antimony oxide being present in an amount of about 0.001 wt % to less than about 1.0 wt %, based on a total weight of the aluminum paste.
    Type: Application
    Filed: March 7, 2011
    Publication date: February 16, 2012
    Inventors: Byung Chul LEE, Dong Suk Kim, Jae Ho Kim, Jae Hwan Oh, Hyun Don Kim
  • Publication number: 20120028389
    Abstract: A method of manufacturing a display device is disclosed. In one embodiment, the method includes: i) forming a semiconductor layer where a plurality of crystallized areas and a plurality of noncrystallized areas are alternately arranged on a substrate, ii) aligning the substrate based on a difference in contrast ratio between the crystallized and noncrystallized areas and iii) performing a photo process or a photolithography process.
    Type: Application
    Filed: July 7, 2011
    Publication date: February 2, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Seong-Hyun Jin, Jae-Beom Choi, Won-Kyu Lee, Young-Jin Chang, Jae-Hwan Oh
  • Publication number: 20120021585
    Abstract: An embodiment is directed to a method of manufacturing a polycrystalline silicon layer, the method including providing a crystallization substrate, the crystallization substrate having an amorphous silicon layer on a first substrate, providing a reflection substrate, the reflection substrate having a first region with a reflection panel therein and a second region without the reflection panel, disposing the crystallization substrate and the reflection substrate on one another, and selectively crystallizing the amorphous silicon layer by directing a laser beam onto the crystallization substrate and the reflection substrate, and reflecting the laser beam from the reflection panel.
    Type: Application
    Filed: July 20, 2011
    Publication date: January 26, 2012
    Inventors: Young-Jin CHANG, Jae-Hwan OH, Won-Kyu LEE, Seong-Hyun JIN, Jae-Beom CHOI
  • Publication number: 20120012568
    Abstract: A laser irradiation apparatus for irradiating a laser beam to a semiconductor layer including a plurality of pixel areas, the apparatus includes a laser generator generating the laser beam, and an optical switching unit time-dividing the laser beam generated from the laser generator and transmitting a plurality of time-divided laser beams to a plurality of optical systems. The apparatus includes a first optical system of the plurality of optical systems that receives a first time-divided laser beam and irradiates a first laser slit beam along a first irradiation direction, and a second optical system of the plurality of optical systems that receives a second time-divided laser beam and irradiates a second laser slit beam along a second irradiation direction that is parallel with the first irradiation direction. The first laser slit beam and the second laser slit beam crystallize partial areas at a same location in the respective pixel areas.
    Type: Application
    Filed: June 14, 2011
    Publication date: January 19, 2012
    Inventors: Won-Kyu Lee, Jae-Beom Choi, Jae-Hwan Oh, Young-Jin Chang, Seong-Hyun Jin
  • Publication number: 20120012760
    Abstract: A laser irradiation apparatus provides a laser beam along a scan direction to a semiconductor layer including a plurality of pixel areas. The laser irradiation apparatus includes at least one laser mask including a plurality of slit groups respectively facing portions of the plurality of pixel areas and a laser generator generating the laser beam that pass through the plurality of slit groups of the at least one laser mask.
    Type: Application
    Filed: June 15, 2011
    Publication date: January 19, 2012
    Inventors: Won-Kyu Lee, Seong-Hyun Jin, Jae-Hwan Oh, Young-Jin Chang, Jae-Beom Choi