Patents by Inventor Dae Jung Choi

Dae Jung Choi 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: 9231035
    Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a first bank on edges of the first electrode; a second bank on an upper surface of the first bank and covering only a portion of the first bank; an organic emitting layer on the first electrode and a portion of the first bank; and a second electrode on the organic emitting layer and covering an entire surface of the display region.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: January 5, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Kang-Hyun Kim, Ki-Soub Yang, Dae-Jung Choi, Seung-Ryul Choi, A-Ryoung Lee, Han-Hee Kim
  • Publication number: 20150333110
    Abstract: Disclosed an organic electroluminescent device and a method for fabricating the same. The device may include a thin film transistor disposed on a substrate; a first electrode formed for each pixel on the thin film transistor; a first pixel define layer formed to cover an edge portion of the first electrode; a second pixel define layer formed on the first pixel define layer; an organic layer formed on the first electrode; and a second electrode formed on the organic layer.
    Type: Application
    Filed: December 23, 2013
    Publication date: November 19, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Kyoung Jin PARK, Ki Soub YANG, Dae Jung CHOI, Seung Ryul CHOI, Han Hee KIM, Kang Hyun KIM, Ji Hyun Lee
  • Publication number: 20150249117
    Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank including a lower layer and an upper layer on the first electrode, the lower layer disposed on edges of the first electrode and having a first width and a first thickness, the upper layer disposed on the lower layer and having a second width smaller than the first width; an organic emitting layer on the first electrode and a portion of the lower layer; and a second electrode on the organic emitting layer and covering an entire surface of the display region.
    Type: Application
    Filed: March 10, 2015
    Publication date: September 3, 2015
    Inventors: Dae-Jung Choi, Jae-Ki Lee, Ki-Soub Yang, Hwang-Un Seo, Hong-Myeong Jeon, Seung-Ryul Choi, A-Ryoung Lee, Han-Hee Kim, Geum-Young Lee, Kang-Hyun Kim
  • Patent number: 9123675
    Abstract: An organic light emitting diode display device includes a first substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the first substrate and in each of the plurality of pixel regions; a first bank on edges of the first electrode and including an insulating material blocking penetration of light; a second bank on the first bank and including an insulating material having a hydrophobic property; an organic light emitting layer on the first electrode and a portion of the first bank; and a second electrode on the organic light emitting layer and covering an entire surface of the display region.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: September 1, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kang-Hyun Kim, Ki-Soub Yang, Dae-Jung Choi, Seung-Ryul Choi, Han-Hee Kim, Kyoung-Jin Park
  • Patent number: 9105876
    Abstract: A method of fabricating an organic light emitting diode display device having improved effective emitting area includes forming a first electrode over a substrate including a display region, which includes a plurality of pixel regions; forming the first bank on edges of the first electrode having a first width, and the second bank formed on the first bank having a second width smaller than the first width; forming an organic emitting layer on the first electrode and a portion of the first bank; and forming a second electrode on a organic emitting layer; patterning the second bank material layer to form a bank pattern; patterning the first bank using the bank pattern as an etching mask to form the first bank; and partially etching the bank pattern to form the second bank such that the first bank protrudes from the second bank by a third width.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: August 11, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Dae-Jung Choi, Ki-Soub Yang, Seung-Ryul Choi, Han-Hee Kim, Kang-Hyun Kim
  • Publication number: 20150001486
    Abstract: An organic light emitting diode display device includes a first substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the first substrate and in each of the plurality of pixel regions; a first bank on edges of the first electrode and including an insulating material blocking penetration of light; a second bank on the first bank and including an insulating material having a hydrophobic property; an organic light emitting layer on the first electrode and a portion of the first bank; and a second electrode on the organic light emitting layer and covering an entire surface of the display region.
    Type: Application
    Filed: December 5, 2013
    Publication date: January 1, 2015
    Applicant: LG Display Co., Ltd.
    Inventors: Kang-Hyun KIM, Ki-Soub YANG, Dae-Jung CHOI, Seung-Ryul CHOI, Han-Hee KIM, Kyoung-Jin PARK
  • Patent number: 8854567
    Abstract: A liquid crystal display device includes an array substrate including: gate and data lines crossing each other on a first substrate to define a pixel region; a common line in parallel with the gate line; first and second common line patterns extending from the common line, wherein the data line is between the first and second common line patterns; a thin film transistor connected to the gate and data lines; a pixel electrode connected to the thin film transistor and in the pixel region; and an inorganic black matrix below the gate line, the common line, and the first and second common lines, wherein the inorganic black matrix below the first and second common lines shields the data line; an opposing substrate including a common electrode on a second substrate; and a liquid crystal layer between the array substrate and the opposing substrate.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: October 7, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Sun-Woo Kim, Jae-Kyun Lee, Jae-Young Oh, Dae-Jung Choi
  • Patent number: 8842108
    Abstract: An array substrate for a liquid crystal display device includes: a substrate; a gate line and a data line on the substrate; a common line parallel to and spaced apart from the gate line; a thin film transistor connected to the gate line and the data line; a plurality of pixel electrodes in the pixel region; a plurality of common electrodes alternating with the plurality of pixel electrodes; at least one outermost common electrode at an edge portion of the pixel region; a black matrix corresponding to the thin film transistor, the gate line and the data line, the black matrix including an inorganic material and having an open portion; and a color filter layer in the open portion.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: September 23, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Kyun Lee, Jae-Young Oh, Dae-Jung Choi, Sun-Woo Kim
  • Publication number: 20140145157
    Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a first bank on edges of the first electrode and having a first width and a first thickness; a second bank on the first bank and having a second width smaller than the first width; an organic emitting layer on the first electrode and a portion of the first bank; and a second electrode on the organic emitting layer and covering an entire surface of the display region.
    Type: Application
    Filed: August 27, 2013
    Publication date: May 29, 2014
    Inventors: Kang-Hyun Kim, Ki-Soub Yang, Dae-Jung Choi, Seung-Ryul Choi, A-Ryoung Lee, Han-Hee Kim
  • Publication number: 20140147950
    Abstract: A method of fabricating an organic light emitting diode display device includes forming a first electrode over a substrate including a display region, which includes a plurality of pixel regions, the first electrode formed in each of the plurality of pixel regions; forming a first bank and a second bank, the first bank formed on edges of the first electrode and having a first width and a first thickness, and the second bank formed on the first bank and having a second width smaller than the first width; forming an organic emitting layer on the first electrode and a portion of the first bank; and forming a second electrode on the organic emitting layer and covering an entire of the display region.
    Type: Application
    Filed: August 26, 2013
    Publication date: May 29, 2014
    Inventors: Dae-Jung Choi, Ki-Soub Yang, Seung-Ryul Choi, Han-Hee Kim, Kang-Hyun Kim
  • Publication number: 20140145158
    Abstract: An organic light emitting diode display device includes a substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the substrate and in each of the plurality of pixel regions; a bank including a lower layer and an upper layer on the first electrode, the lower layer disposed on edges of the first electrode and having a first width and a first thickness, the upper layer disposed on the lower layer and having a second width smaller than the first width; an organic emitting layer on the first electrode and a portion of the lower layer; and a second electrode on the organic emitting layer and covering an entire surface of the display region.
    Type: Application
    Filed: August 28, 2013
    Publication date: May 29, 2014
    Inventors: Dae-Jung Choi, Jae-Ki Lee, Ki-Soub Yang, Hwang-Un Seo, Hong-Myeong Jeon, Seung-Ryul Choi, A-Ryoung Lee, Han-Hee Kim, Geum-Young Lee, Kang-Hyun Kim
  • Publication number: 20140120643
    Abstract: A liquid crystal display device includes an array substrate including: gate and data lines crossing each other on a first substrate to define a pixel region; a common line in parallel with the gate line; first and second common line patterns extending from the common line, wherein the data line is between the first and second common line patterns; a thin film transistor connected to the gate and data lines; a pixel electrode connected to the thin film transistor and in the pixel region; and an inorganic black matrix below the gate line, the common line, and the first and second common lines, wherein the inorganic black matrix below the first and second common lines shields the data line; an opposing substrate including a common electrode on a second substrate; and a liquid crystal layer between the array substrate and the opposing substrate.
    Type: Application
    Filed: January 2, 2014
    Publication date: May 1, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Sun-Woo Kim, Jae-Kyun Lee, Jae-Young Oh, Dae-Jung Choi
  • Patent number: 8643800
    Abstract: A liquid crystal display device includes an array substrate including: gate and data lines crossing each other on a first substrate to define a pixel region; a common line in parallel with the gate line; first and second common line patterns extending from the common line, wherein the data line is between the first and second common line patterns; a thin film transistor connected to the gate and data lines; a pixel electrode connected to the thin film transistor and in the pixel region; and an inorganic black matrix below the gate line, the common line, and the first and second common lines, wherein the inorganic black matrix below the first and second common lines shields the data line; an opposing substrate including a common electrode on a second substrate; and a liquid crystal layer between the array substrate and the opposing substrate.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: February 4, 2014
    Assignee: LG Display Co., Ltd
    Inventors: Sun-Woo Kim, Jae-Kyun Lee, Jae-Young Oh, Dae-Jung Choi
  • Patent number: 8570450
    Abstract: A stereoscopic image display device and a method for manufacturing the same are disclosed, in which switching between a two-dimensional image and a three-dimensional image is performed using an electro wettable material depending on whether a voltage is applied. The stereoscopic image display device comprises a display panel; a first electrode formed on one surface of the display panel; a wall formed to divide a plurality of lens areas at the boundary of the respective lens areas on the first electrode; an electro-wettable material included in the wall; a first substrate formed on the wall to face the display panel; and a second electrode formed at the center of each wall on the first substrate.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: October 29, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Cheol-Hwan Lee, Dae-Jung Choi
  • Publication number: 20120019523
    Abstract: A stereoscopic image display device and a method for manufacturing the same are disclosed, in which switching between a two-dimensional image and a three-dimensional image is performed using an electro wettable material depending on whether a voltage is applied. The stereoscopic image display device comprises a display panel; a first electrode formed on one surface of the display panel; a wall formed to divide a plurality of lens areas at the boundary of the respective lens areas on the first electrode; an electro-wettable material included in the wall; a first substrate formed on the wall to face the display panel; and a second electrode formed at the center of each wall on the first substrate.
    Type: Application
    Filed: July 20, 2011
    Publication date: January 26, 2012
    Inventors: Cheol-Hwan Lee, Dae-Jung Choi
  • Publication number: 20110273651
    Abstract: A liquid crystal display device includes an array substrate including: gate and data lines crossing each other on a first substrate to define a pixel region; a common line in parallel with the gate line; first and second common line patterns extending from the common line, wherein the data line is between the first and second common line patterns; a thin film transistor connected to the gate and data lines; a pixel electrode connected to the thin film transistor and in the pixel region; and an inorganic black matrix below the gate line, the common line, and the first and second common lines, wherein the inorganic black matrix below the first and second common lines shields the data line; an opposing substrate including a common electrode on a second substrate; and a liquid crystal layer between the array substrate and the opposing substrate.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 10, 2011
    Inventors: Sun-Woo Kim, Jae-Kyun Lee, Jae-Young Oh, Dae-Jung Choi
  • Publication number: 20110273412
    Abstract: An array substrate for a liquid crystal display device includes: a substrate; a gate line and a data line on the substrate; a common line parallel to and spaced apart from the gate line; a thin film transistor connected to the gate line and the data line; a plurality of pixel electrodes in the pixel region; a plurality of common electrodes alternating with the plurality of pixel electrodes; at least one outermost common electrode at an edge portion of the pixel region; a black matrix corresponding to the thin film transistor, the gate line and the data line, the black matrix including an inorganic material and having an open portion; and a color filter layer in the open portion.
    Type: Application
    Filed: May 3, 2011
    Publication date: November 10, 2011
    Applicant: LG Display Co., Ltd.
    Inventors: Jae-Kyun LEE, Jae-Young Oh, Dae-Jung Choi, Sun-Woo Kim
  • Patent number: 7428025
    Abstract: Disclosed is a conductive polarizer for an LCD. The conductive polarizer includes a protective layer, an adhesive layer deposited on the protective layer, a lower support layer deposited on the adhesive layer, a polarizing layer deposited on the lower support layer, an upper support layer deposited on the polarizing layer, and an anti-glare/anti-static layer deposited on the upper support layer. The anti-glare/anti-static layer includes an antimony tin oxide layer formed at an upper surface thereof with a conductive polymer pattern for inducing static electricity and an anti-reflective layer formed on the antimony tin oxide layer including the conductive polymer pattern. Silica particles are distributed over a whole area of the anti-reflective layer.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: September 23, 2008
    Assignee: Boe Hydis Technology Co., Ltd.
    Inventor: Dae Jung Choi