Patents by Inventor Chun-Gi You

Chun-Gi You 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: 8535995
    Abstract: A method of manufacturing an organic light-emitting display device includes forming a silicon layer and a gate insulating film over a substrate having a transistor region and a capacitor region; forming a halftone photoresist over the substrate; patterning the silicon layer and the gate insulating film; forming a residual photoresist by subjecting the halftone photoresist to an ashing process to leave part of the halftone photoresist over the transistor region; and doping at least a portion of the silicon layer with impurities by applying the impurities over an entire region of the substrate.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: September 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Hyun Park, Chun-Gi You, Sun Park, Yul-Kyu Lee, Sang-Ho Moon
  • Patent number: 8525174
    Abstract: An organic light emitting display device constructed with an active layer of a thin film transistor formed on a substrate; a gate electrode including a first transparent conductive layer and a first metal layer formed on the active layer and a first insulating layer, source and drain electrodes including a second metal layer connected to the active layer through a contact hole formed in the second insulating layer, a third metal layer formed on the second metal layer, and a second transparent conductive layer formed on the third metal layer, formed on the gate electrode and a second insulating layer, a pixel electrode including the first transparent conductive layer, the third metal layer, and the second transparent conductive layer formed on the first insulating layer; and an intermediate layer disposed on the pixel electrode.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: September 3, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chun-Gi You, Joon-Hoo Choi
  • Publication number: 20130217165
    Abstract: Making an OLED display, includes forming a first storage plate and a gate insulating layer covering the first storage plate on a substrate; sequentially forming a second storage plate covering the first storage plate and a capacitor intermediate in the gate insulating layer; forming a first doping region by injecting an impurity to a part that is not covered by the capacitor intermediate in the first storage plate; forming an interlayer insulating layer having a capacitor opening exposing the capacitor intermediate, and a plurality of erosion preventing layers on an edge of the capacitor intermediate toward the first doping region in the capacitor opening; removing the capacitor intermediate including the erosion preventing layer and a lower region of the erosion preventing layer, and injecting an impurity in the first storage plate through the second storage plate to form a second doping region contacting the first doping region.
    Type: Application
    Filed: April 10, 2013
    Publication date: August 22, 2013
    Inventors: Yul-Kyu LEE, Sun PARK, Chun-Gi YOU, Jong-Hyun PARK
  • Patent number: 8514211
    Abstract: A display panel includes a power line supplying power, and a plurality of pixels connected with the power line, each pixel including a plurality of sub-pixel regions, and receiving the power to display an image. Each of the pixels further includes a plurality of driving thin film transistors and a plurality of light emitting units. Each of the driving thin film transistors are positioned in respective sub-pixel regions to receive the power to output driving signals. Each of the light emitting units are connected to respective driving thin film transistors, have relatively longer lengths in a first direction, and have the same width in a second direction substantially perpendicular to the first direction. One among the plurality of light emitting units is longer than the remaining light emitting units to thereby improve a light emitting efficiency and image display quality of a display panel.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: August 20, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Hyuk Choi, Chun-Gi You, Jong-Hyun Park, Doo-Hyun Woo, Dong-Ki Lee, Young-Dong Kwon, Jin-Hee Kang
  • Patent number: 8507156
    Abstract: A laser mask is disclosed. In one embodiment, the laser mask includes: a mask substrate including i) at least one light transmission portion configured to transmit light therethrough and ii) a plurality of light interruption portions separated by the light transmission portion interposed therebetween. The light interruption portions are configured to block light; and a plurality of protrusion and depression regions positioned on the light interruption portions of the mask substrate. The protrusion and depression regions comprise a plurality of concave portions and a plurality of convex portions which are alternately formed.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: August 13, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun Park, Chun-Gi You, Jong-Hyun Park, Yul-Kyu Lee, Jin-Hee Kang
  • Publication number: 20130200379
    Abstract: A thin film transistor (TFT) array substrate includes a TFT including an active layer, a gate electrode, source and drain electrodes, a first insulating layer between the active layer and the gate electrode, and a second insulating layer and a third insulating layer between the gate electrode and the source and drain electrodes, the first insulating layer and the second insulating layer extending in the TFT, a pixel electrode including a transparent conductive oxide material, the pixel electrode being on the first insulating layer and the second insulating layer and being connected to the source or drain electrodes via an opening in the third insulating layer, a capacitor including a first electrode on a same layer as the gate electrode and a second electrode on a same layer as the pixel electrode; and a fourth insulating layer covering the source and drain electrodes and exposing the pixel electrode via an opening.
    Type: Application
    Filed: August 20, 2012
    Publication date: August 8, 2013
    Inventors: Chun-Gi YOU, Joon-Hoo Choi
  • Publication number: 20130161632
    Abstract: An OLED apparatus including a thin film transistor including an activation layer, a gate electrode insulated from the activation layer and including a lower gate electrode and an upper gate electrode, an interlayer insulation film covering the gate electrode, and a source and drain electrode on the insulation film and contacting the activation layer; an OLED including a pixel electrode electrically connected to the thin film transistor, an intermediate layer including an emissive layer, and an opposite electrode; a blister prevention layer on a same level as the activation layer; a gate insulation layer covering the activation layer and the blister prevention layer and insulating the activation layer from the gate electrode; and an interconnection unit including first and second layers on a portion of the gate insulation layer overlying the blister prevention layer, wherein the blister prevention layer protects the interconnection unit on the gate insulation layer from blistering.
    Type: Application
    Filed: August 23, 2012
    Publication date: June 27, 2013
    Inventors: Chun-Gi YOU, Joon-Hoo Choi
  • Publication number: 20130153914
    Abstract: An organic light-emitting display device includes a thin film transistor on a substrate, a first wiring and a second wiring overlapping each other, the first and second wirings being at different heights relative to the substrate and being connected to the thin film transistor, and a plurality of insulating layers between the first wiring and the second wiring.
    Type: Application
    Filed: June 13, 2012
    Publication date: June 20, 2013
    Inventors: Chun-Gi You, Joon-Hoo Choi
  • Patent number: 8461591
    Abstract: An organic light emitting display device with a simplified manufacturing process and improved electrical characteristics, along with a method of manufacturing the device, are disclosed. The device includes: a substrate having a display area and a non-display area; a thin film transistor (TFT) in the display area; a wiring portion in the non-display area; an intermediate layer electrically connected to the TFT and including an organic light emitting layer; and a counter electrode on the intermediate layer. The TFT includes an active layer, a gate electrode, and source/drain electrodes electrically connected to the active layer. The source/drain electrodes include a first conductive layer, a second conductive layer, and a third conductive layer that are sequentially stacked. The wiring portion includes the same material as the first conductive layer. One of the source/drain electrodes is longer than the other, to function as a pixel electrode, and is electrically connected to the intermediate layer.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: June 11, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yul-Kyu Lee, Chun-Gi You, Sun Park, Jong-Hyun Park, Jin-Hee Kang
  • Patent number: 8450159
    Abstract: A thin film transistor, a method of manufacturing the same, and a display device including the same, the thin film transistor including a substrate; a polysilicon semiconductor layer on the substrate; and a metal pattern between the semiconductor layer and the substrate, the metal pattern being insulated from the semiconductor layer, wherein the polysilicon of the semiconductor layer includes a grain boundary parallel to a crystallization growing direction, and a surface roughness of the polysilicon semiconductor layer defined by a distance between a lowest peak and a highest peak in a surface thereof is less than about 15 nm.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: May 28, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Hyun Park, Chun-Gi You, Sun Park, Jin-Hee Kang, Yul-Kyu Lee
  • Publication number: 20130126882
    Abstract: A thin film transistor array substrate includes a thin film transistor including an activation layer, a gate electrode, source and drain electrodes, a first insulation layer between the activation layer and the gate electrode, and a second insulation layer between the gate electrode and the source and drain electrodes, a pixel electrode including a transparent conductive oxide, the pixel electrode being on a portion of the first insulation layer extending from the thin film transistor and being connected to one of the source and drain electrodes via an opening in the second insulation layer, a capacitor including a first electrode and a second electrode, the first electrode being on a same layer as the activation layer and including a transparent conductive oxide, and the second electrode being between the first and second insulation layers, and a third insulation layer covering the source and drain electrodes and exposing the pixel electrode.
    Type: Application
    Filed: May 25, 2012
    Publication date: May 23, 2013
    Inventors: Chun-Gi YOU, Joon-Hoo Choi
  • Patent number: 8445915
    Abstract: An organic light-emitting display device includes a thin film transistor (TFT) including an active layer, a gate electrode comprising a first electrode and a second electrode, a source electrode, and a drain electrode, a photoresist layer on the source electrode and the drain electrode, a pixel electrode electrically coupled to the TFT, comprising a same material as the first electrode, and at a same layer as the first electrode, a pixel defining layer having a hole exposing the pixel electrode, the pixel defining layer covering the photoresist layer, an intermediate layer on the pixel electrode and comprising a light-emitting layer, and an opposite electrode covering the intermediate layer and facing the pixel electrode.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: May 21, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Chun-Gi You
  • Publication number: 20130119392
    Abstract: An organic light-emitting display device having a thin film transistor including an active layer, a gate electrode, a lower gate electrode, an upper gate electrode, an insulating layer covering the gate electrode, source and drain electrodes that are formed on the insulating layer and contact the active layer. An organic light-emitting diode is electrically connected to the thin film transistor and includes a pixel electrode formed at the same layer level as the lower gate electrode, an intermediate layer including an emission layer, and a counter electrode. A lower pad electrode is formed at the same layer level as the lower gate electrode and an upper pad electrode is formed at the same layer level as the upper gate electrode.
    Type: Application
    Filed: May 16, 2012
    Publication date: May 16, 2013
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Sun Park, Yul-Kyu Lee, Chun-Gi You
  • Publication number: 20130119387
    Abstract: An organic light-emitting display apparatus includes: a substrate including an emission region and a non-emission region and having a recess formed in at least a portion of the non-emission region; a black matrix disposed in the recess; a thin film transistor disposed on the non-emission region of the substrate and including an active layer, a gate electrode, and source and drain electrodes; a pixel electrode disposed on the emission region of the substrate and electrically connected to one of the source and drain electrodes; an organic emission layer disposed on the pixel electrode; and an opposite electrode disposed on the organic emission layer.
    Type: Application
    Filed: May 10, 2012
    Publication date: May 16, 2013
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Yong-Woo Park, Chun-Gi You, Joon-Hoo Choi, Won-Pil Lee
  • Patent number: 8436357
    Abstract: Making an OLED display, includes forming a first storage plate and a gate insulating layer covering the first storage plate on a substrate; sequentially forming a second storage plate covering the first storage plate and a capacitor intermediate in the gate insulating layer; forming a first doping region by injecting an impurity to a part that is not covered by the capacitor intermediate in the first storage plate; forming an interlayer insulating layer having a capacitor opening exposing the capacitor intermediate, and a plurality of erosion preventing layers on an edge of the capacitor intermediate toward the first doping region in the capacitor opening; removing the capacitor intermediate including the erosion preventing layer and a lower region of the erosion preventing layer, and injecting an impurity in the first storage plate through the second storage plate to form a second doping region contacting the first doping region.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: May 7, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yul-Kyu Lee, Sun Park, Chun-Gi You, Jong-Hyun Park
  • Publication number: 20130105821
    Abstract: An organic electroluminescent display device includes a first electrode on a substrate, an organic layer including a light-emitting layer on the first electrode, a second electrode including lower and upper conductive layers sequentially stacked on the organic layer, and an insulating pattern extending into the organic layer through the lower conductive layer.
    Type: Application
    Filed: June 21, 2012
    Publication date: May 2, 2013
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Chun Gi You, Joon Hoo Choi
  • Patent number: 8405084
    Abstract: An organic light emitting diode display includes a substrate main body, a polysilicon semiconductor layer on the substrate main body, a gate insulating layer covering the semiconductor layer, and a gate electrode and a pixel electrode on the gate insulating layer, the gate electrode and the pixel electrode each including a transparent conductive layer portion with a gate metal layer portion on the transparent conductive layer portion, and the pixel electrode including a light emitting area having the transparent conductive layer portion and a non-light emitting area having both the transparent conductive layer portion and the gate metal layer portion.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: March 26, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yul-Kyu Lee, Chun-Gi You, Sun Park, Jong-Hyun Park, Jin-Hee Kang
  • Patent number: 8400601
    Abstract: A flat panel display device and a method of manufacturing the flat panel display device are disclosed. In one embodiment, the flat panel display device includes: i) a first substrate, ii) an active layer formed over the first substrate, wherein the active layer comprises a source region, a drain region, and a channel region, iii) a gate insulating layer formed on the active layer, iv) a gate electrode formed on the gate insulating layer and over the channel region of the active layer and v) a first interlayer insulating film formed on the gate insulating layer and the gate electrode.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: March 19, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Hyun Park, Chun-Gi You, Sun Park, Yul-Kyu Lee, Jin-Hee Kang
  • Patent number: 8395160
    Abstract: An organic light emitting display apparatus and a method of manufacturing the organic light emitting display apparatus, whereby the manufacturing process is simplified and the electric characteristics of the organic light emitting display apparatus are improved. The organic light emitting display apparatus includes: a gate electrode that includes a first conductive layer including ITO, a second conductive layer on the first conductive layer, a third conductive layer on the second conductive layer and including ITO, and a fourth conductive layer on the third conductive layer and including IZO or AZO; and a pixel electrode formed in the same layer level as the gate electrode and including a first electrode layer that includes ITO, a second electrode layer on the first electrode layer, a third electrode layer on the second electrode layer and including ITO, and a fourth electrode layer on the third electrode layer and including IZO or AZO.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: March 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun Park, Chun-Gi You, Jong-Hyun Park, Jin-Hee Kang, Yul-Kyu Lee
  • Patent number: 8378353
    Abstract: An organic light emitting diode display device and a method of manufacturing the same are disclosed.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: February 19, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yul-Kyu Lee, Chun-Gi You, Sun Park