Patents by Inventor Hong Woo Yu

Hong Woo Yu 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: 9035312
    Abstract: A TFT array substrate is provided. The TFT array substrate includes a gate electrode connected to a gate line; a source electrode connected to a data line, the data line crossing the gate line to define a pixel region; a drain electrode facing the source electrode with a channel interposed therebetween; a semiconductor layer forming the channel between the source electrode and the drain electrode; a channel passivation layer formed on the channel to protect the semiconductor layer; a pixel electrode disposed in the pixel region to contact with the drain electrode; a storage capacitor including the pixel electrode extending over the gate line to form a storage area on a gate insulating layer on which a semiconductor layer pattern and a metal layer pattern are stacked; a gate pad extending from the gate line; and a data pad connected to the data line.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: May 19, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Young Seok Choi, Hong Woo Yu, Ki Sul Cho, Jae Ow Lee, Bo Kyoung Jung
  • Patent number: 9018053
    Abstract: A TFT array substrate is provided. The TFT array substrate includes: a gate electrode connected to a gate line; a source electrode connected to a data line that crosses the gate line and defines a pixel region; a drain electrode facing the source electrode with a channel between; a semiconductor layer forming the channel in between the source electrode and the drain electrode; a pixel electrode in the pixel region and contacting the drain electrode; a channel passivation layer formed on the semiconductor layer; a gate pad with a gate pad lower electrode that extends from the gate line; and a data pad having a data pad lower electrode separated from the data line.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: April 28, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Young Seok Choi, Hong Woo Yu, Ki Sul Cho, Jae Ow Lee, Bo Kyoung Jung
  • Patent number: 8944874
    Abstract: An organic light emitting display device (OLED) includes a transparent substrate a first electrode formed on the transparent substrate a partition wall including first and second tapered structures having different tapers and formed on the first electrode, and an organic light emitting layer stacked on both sides of the first electrode below a level of the partition wall and a second electrode. The OLED device is manufactured by, for example, forming a first electrode on a transparent substrate, forming a partition wall having first and second tapered structures on the first electrode, and forming an organic light emitting layer and a second electrode, sequentially, on both sides of the first electrode below a level of the partition wall.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: February 3, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Il-Su Oh, Jong-Sung Kim, Hong-Woo Yu, Kwang-Yeon Lee
  • Publication number: 20140154829
    Abstract: An organic light emitting display device (OLED) includes a transparent substrate a first electrode formed on the transparent substrate a partition wall including first and second tapered structures having different tapers and formed on the first electrode, and an organic light emitting layer stacked on both sides of the first electrode below a level of the partition wall and a second electrode. The OLED device is manufactured by, for example, forming a first electrode on a transparent substrate, forming a partition wall having first and second tapered structures on the first electrode, and forming an organic light emitting layer and a second electrode, sequentially, on both sides of the first electrode below a level of the partition wall.
    Type: Application
    Filed: February 6, 2014
    Publication date: June 5, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Il-Su OH, Jong-Sung KIM, Hong-Woo YU, Kwang-Yeon LEE
  • Patent number: 8686629
    Abstract: An organic light emitting display device (OLED) includes a transparent substrate a first electrode formed on the transparent substrate a partition wall including first and second tapered structures having different tapers and formed on the first electrode, and an organic light emitting layer stacked on both sides of the first electrode below a level of the partition wall and a second electrode. The OLED device is manufactured by, for example, forming a first electrode on a transparent substrate, forming a partition wall having first and second tapered structures on the first electrode, and forming an organic light emitting layer and a second electrode, sequentially, on both sides of the first electrode below a level of the partition wall.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: April 1, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Il-Su Oh, Jong-Sung Kim, Hong-Woo Yu, Kwang-Yeon Lee
  • Patent number: 8507301
    Abstract: A TFT array substrate includes: a gate electrode connected to a gate line; a source electrode connected to a data line crossing the gate line to define a pixel region; a drain electrode which is opposite to the source electrode with a channel in between; a semiconductor layer defining the channel between the source electrode and the drain electrode; a pixel electrode in the pixel region and connected to the drain electrode; a channel passivation layer on the channel of the semiconductor layer; a gate pad extending from the gate line, where a semiconductor pattern and a transparent conductive pattern are formed; a data pad connected to the data line, where the transparent conductive pattern is formed; and a gate insulating layer formed under the semiconductor layer, the gate line and the gate pad, and the data line and the data pad.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: August 13, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Young Seok Choi, Hong Woo Yu, Ki Sul Cho, Jae Ow Lee, Bo Kyoung Jung
  • Patent number: 7960199
    Abstract: A thin film transistor array substrate and a fabricating method thereof are disclosed. The thin film transistor array substrate protects a thin film transistor without a protective film and accordingly reduces the manufacturing cost. In the thin film transistor array substrate, a gate electrode is connected to a gate line. A source electrode is connected to a data line crossing the gate line to define a pixel area. A drain electrode is opposed to the source electrode with a channel therebetween. A semiconductor layer is in the channel. A pixel electrode in the pixel area contacts the drain electrode over substantially the entire overlapping area between the two. A channel protective film is provided on the semiconductor layer corresponding to the channel to protect the semiconductor layer.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: June 14, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Young Seok Choi, Byung Yong Ahn, Ki Su Cho, Hong Woo Yu
  • Publication number: 20100323482
    Abstract: A TFT array substrate is provided. The TFT array substrate includes: a gate electrode connected to a gate line; a source electrode connected to a data line that crosses the gate line and defines a pixel region; a drain electrode facing the source electrode with a channel between; a semiconductor layer forming the channel in between the source electrode and the drain electrode; a pixel electrode in the pixel region and contacting the drain electrode; a channel passivation layer formed on the semiconductor layer; a gate pad with a gate pad lower electrode that extends from the gate line; and a data pad having a data pad lower electrode separated from the data line.
    Type: Application
    Filed: August 27, 2010
    Publication date: December 23, 2010
    Inventors: Young Seok CHOI, Hong Woo Yu, Ki Sul Cho, Jae Ow Lee, Bo Kyoung Jung
  • Patent number: 7804089
    Abstract: A TFT array substrate is provided. The TFT array substrate includes: a gate electrode connected to a gate line; a source electrode connected to a data line that crosses the gate line and defines a pixel region; a drain electrode facing the source electrode with a channel between; a semiconductor layer forming the channel in between the source electrode and the drain electrode; a pixel electrode in the pixel region and contacting the drain electrode; a channel passivation layer formed on the semiconductor layer; a gate pad with a gate pad lower electrode that extends from the gate line; and a data pad having a data pad lower electrode separated from the data line.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: September 28, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Young Seok Choi, Hong Woo Yu, Ki Sul Cho, Jae Ow Lee, Bo Kyoung Jung
  • Publication number: 20100075472
    Abstract: A TFT array substrate includes: a gate electrode connected to a gate line; a source electrode connected to a data line crossing the gate line to define a pixel region; a drain electrode which is opposite to the source electrode with a channel in between; a semiconductor layer defining the channel between the source electrode and the drain electrode; a pixel electrode in the pixel region and connected to the drain electrode; a channel passivation layer on the channel of the semiconductor layer; a gate pad extending from the gate line, where a semiconductor pattern and a transparent conductive pattern are formed; a data pad connected to the data line, where the transparent conductive pattern is formed; and a gate insulating layer formed under the semiconductor layer, the gate line and the gate pad, and the data line and the data pad.
    Type: Application
    Filed: November 25, 2009
    Publication date: March 25, 2010
    Inventors: Young Seok Choi, Hong Woo Yu, Ki Sul Cho, Jae Ow Lee, Bo Kyoung Jung
  • Patent number: 7649581
    Abstract: Disclosed is an array substrate of an LCD, and a method for fabricating it, which simplifies the fabrication process, thereby reducing fabrication costs. The process is simplified because the array substrate does not have a passivation film. The thin film transistors on the array substrate each have an active layer that is protected from contamination by forming a channel insulation layer on the active layer through a dry-etching process. Further, the gate line, gate pad, and gate electrode may have a two-layer structure having a low-resistance metal layer and a barrier metal layer, or a three-layer structure having a low-resistance metal layer and two barrier metal layers.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: January 19, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Young Seok Choi, Byung Yong Ahn, Hong Woo Yu, Ki Sul Cho
  • Patent number: 7646018
    Abstract: A TFT array substrate includes: a gate electrode connected to a gate line; a source electrode connected to a data line crossing the gate line to define a pixel region; a drain electrode which is opposite to the source electrode with a channel in between; a semiconductor layer defining the channel between the source electrode and the drain electrode; a pixel electrode in the pixel region and connected to the drain electrode; a channel passivation layer on the channel of the semiconductor layer; a gate pad extending from the gate line, where a semiconductor pattern and a transparent conductive pattern are formed; a data pad connected to the data line, where the transparent conductive pattern is formed; and a gate insulating layer formed under the semiconductor layer, the gate line and the gate pad, and the data line and the data pad.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: January 12, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Young Seok Choi, Hong Woo Yu, Ki Sul Cho, Jae Ow Lee, Bo Kyoung Jung
  • Publication number: 20100001278
    Abstract: A thin film transistor array substrate and a fabricating method thereof are disclosed. The thin film transistor array substrate protects a thin film transistor without a protective film and accordingly reduces the manufacturing cost. In the thin film transistor array substrate, a gate electrode is connected to a gate line. A source electrode is connected to a data line crossing the gate line to define a pixel area. A drain electrode is opposed to the source electrode with a channel therebetween. A semiconductor layer is in the channel. A pixel electrode in the pixel area contacts the drain electrode over substantially the entire overlapping area between the two. A channel protective film is provided on the semiconductor layer corresponding to the channel to protect the semiconductor layer.
    Type: Application
    Filed: August 14, 2009
    Publication date: January 7, 2010
    Applicant: LG Display Co., Ltd.
    Inventors: Young Seok Choi, Byung Yong Ahn, Ki Sul Cho, Hong Woo Yu
  • Patent number: 7586123
    Abstract: A thin film transistor array substrate and a fabricating method thereof are disclosed. The thin film transistor array substrate protects a thin film transistor without a protective film and accordingly reduces the manufacturing cost. In the thin film transistor array substrate, a gate electrode is connected to a gate line. A source electrode is connected to a data line crossing the gate line to define a pixel area. A drain electrode is opposed to the source electrode with a channel therebetween. A semiconductor layer is in the channel. A pixel electrode in the pixel area contacts the drain electrode over substantially the entire overlapping area between the two. A channel protective film is provided on-the semiconductor layer corresponding to the channel to protect the semiconductor layer.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: September 8, 2009
    Assignee: LG. Display Co., Ltd.
    Inventors: Young Seok Choi, Byung Yong Ahn, Ki Sul Cho, Hong Woo Yu
  • Publication number: 20080018241
    Abstract: An organic light emitting display device (OLED) includes a transparent substrate a first electrode formed on the transparent substrate a partition wall including first and second tapered structures having different tapers and formed on the first electrode, and an organic light emitting layer stacked on both sides of the first electrode below a level of the partition wall and a second electrode. The OLED device is manufactured by, for example, forming a first electrode on a transparent substrate, forming a partition wall having first and second tapered structures on the first electrode, and forming an organic light emitting layer and a second electrode, sequentially, on both sides of the first electrode below a level of the partition wall.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 24, 2008
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Il-Su Oh, Jong-Sung Kim, Hong-Woo Yu, Kwang-Yeon Lee