Patents by Inventor Sung-Joon Bae

Sung-Joon Bae 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: 8921860
    Abstract: An organic light emitting display device is provided to avoid color change due to a viewing direction. The organic light emitting display includes a light compensation layer having a refractive index different than that of an insulating layer. The organic light emitting display may be disposed at the side to which light emitted from an organic light emitting layer is entered to change the path and phase of light, thereby coinciding cavity peak phases for each wavelength of white light emitted from an organic light emitting unit.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: December 30, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Shin-Han Kim, Byung-Chul Ahn, Yoon-Heung Tak, Chang-Wook Han, Do-Hyung Kim, Jae-Man Lee, Hong-Seok Choi, Sung-Joon Bae, Seung-Ryong Joung
  • Patent number: 8716704
    Abstract: An organic electroluminescent device including a driving element having a driving gate electrode connected to the switching element, the driving gate electrode formed uniformly on the substrate, a driving source electrode having a first driving source electrode along a first direction and a plurality of second driving source electrodes extending from the first driving source electrode along a second direction crossing the first direction, a driving drain electrode spaced apart from the driving source electrode, the driving drain electrode having a first driving drain electrode along the first direction and a plurality of second driving drain electrodes extending from the first driving drain electrode along the second direction, wherein the plurality of second driving source electrodes alternate with the plurality of second driving drain electrodes, wherein the driving source electrode and the driving drain electrode including an interval therebetween are facing the driving gate electrode.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: May 6, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Kyung-Man Kim, Doo-Hyun Ko, Sung-Joon Bae
  • Patent number: 8587194
    Abstract: An organic electroluminescent display (OELD) device includes a first substrate having a first unit pixel region including first and second pixel regions; first and second gate lines along a first direction; first and second data lines along a second direction; a switching TFT in the first pixel region; a driving TFT in the first pixel region; a passivation layer including a first contact hole exposing a portion of the driving TFT; a first electrode contacting the driving TFT through the first contact hole; a bank surrounding the second pixel region an organic emitting layer in the second pixel region; and a transparent second electrode on the organic emitting layer and the bank, wherein the second pixel region is a region shifted from the first pixel region such that the second gate line goes across the second pixel region.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: November 19, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Yoon Lee, Sung-Joon Bae
  • Patent number: 8395569
    Abstract: The present invention relates to an organic electroluminescent display (OELD) device, more particularly, to a dual panel type OELD device and a method of fabricating the same. The OLED structure has first and second barrier walls having a reverse-taper shape with respect to the first substrate and first and second side surfaces, wherein the walls define novel polymer patterns with varying heights relative to each other.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: March 12, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Kyung-Hee Min, Sung-Joon Bae, Joon-Suk Lee, Do-Hyung Kim
  • Patent number: 8368674
    Abstract: An organic electroluminescent device including a driving element having a driving gate electrode connected to the switching element, the driving gate electrode formed uniformly on the substrate, a driving source electrode having a first driving source electrode along a first direction and a plurality of second driving source electrodes extending from the first driving source electrode along a second direction crossing the first direction, a driving drain electrode spaced apart from the driving source electrode, the driving drain electrode having a first driving drain electrode along the first direction and a plurality of second driving drain electrodes extending from the first driving drain electrode along the second direction, wherein the plurality of second driving source electrodes alternate with the plurality of second driving drain electrodes, wherein the driving source electrode and the driving drain electrode including an interval therebetween are facing the driving gate electrode.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: February 5, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Kyung-Man Kim, Doo-Hyun Ko, Sung-Joon Bae
  • Publication number: 20130015450
    Abstract: An organic light emitting display device is provided to avoid color change due to a viewing direction. The organic light emitting display includes a light compensation layer having a refractive index different than that of an insulating layer. The organic light emitting display may be disposed at the side to which light emitted from an organic light emitting layer is entered to change the path and phase of light, thereby coinciding cavity peak phases for each wavelength of white light emitted from an organic light emitting unit.
    Type: Application
    Filed: July 13, 2012
    Publication date: January 17, 2013
    Inventors: Shin-Han Kim, Byung-Chul Ahn, Yoon-Heung Tak, Chang-Wook Han, Do-Hyung Kim, Jae-Man Lee, Hong-Seok Choi, Sung-Joon Bae, Seung-Ryong Joung
  • Patent number: 7956530
    Abstract: An organic electroluminescent display device comprises a substrate, including a pixel region and a non-pixel region at a boundary of the pixel region; a first electrode on the substrate in the pixel region; a separator over the first electrode, the separator located in the non-pixel region, the separator including a first portion having a first width and a second portion having a second width smaller than the first width, the first portion overlapping edges of the first electrode, and the second portion within the non-pixel region; an organic electroluminescent layer over the separator in the pixel region surrounded by the separator; and a second electrode on an entire surface of the organic electroluminescent layer and the separator.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: June 7, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Sung-Joon Bae, Jin-Ook Kim
  • Patent number: 7902753
    Abstract: An electroluminescent display device includes first and second substrates facing each other and having a pixel region and a non-pixel region; a thin film transistor and an array layer on an inner surface of the first substrate; a first electrode on an inner surface of the second substrate; a buffer layer on the first electrode in the non-pixel region; a shielding pattern on the buffer layer; a separator on the shielding pattern; an emitting layer on the first electrode in the pixel region; a second electrode on the emitting layer; and a connection electrode between the first and second substrates.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: March 8, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: In-Jae Chung, Ki-Yong Kim, Sung-Joon Bae, Jae-Yong Park
  • Publication number: 20100315318
    Abstract: An organic electroluminescent display (OELD) device includes a first substrate having a first unit pixel region including first and second pixel regions; first and second gate lines along a first direction; first and second data lines along a second direction; a switching TFT in the first pixel region; a driving TFT in the first pixel region; a passivation layer including a first contact hole exposing a portion of the driving TFT; a first electrode contacting the driving TFT through the first contact hole; a bank surrounding the second pixel region an organic emitting layer in the second pixel region; and a transparent second electrode on the organic emitting layer and the bank, wherein the second pixel region is a region shifted from the first pixel region such that the second gate line goes across the second pixel region.
    Type: Application
    Filed: October 19, 2009
    Publication date: December 16, 2010
    Inventors: Jae-Yoon LEE, Sung-Joon BAE
  • Publication number: 20100156286
    Abstract: An organic electroluminescent display device comprises a substrate, including a pixel region and a non-pixel region at a boundary of the pixel region; a first electrode on the substrate in the pixel region; a separator over the first electrode, the separator located in the non-pixel region, the separator including a first portion having a first width and a second portion having a second width smaller than the first width, the first portion overlapping edges of the first electrode, and the second portion within the non-pixel region; an organic electroluminescent layer over the separator in the pixel region surrounded by the separator; and a second electrode on an entire surface of the organic electroluminescent layer and the separator.
    Type: Application
    Filed: January 25, 2010
    Publication date: June 24, 2010
    Inventors: Sung-Joon Bae, Jin-Ook Kim
  • Patent number: 7728509
    Abstract: An organic electroluminescent display device comprises a substrate, including a pixel region and a non-pixel region at a boundary of the pixel region; a first electrode on the substrate in the pixel region; a separator over the first electrode, the separator located in the non-pixel region, the separator including a first portion having a first width and a second portion having a second width smaller than the first width, the first portion overlapping edges of the first electrode, and the second portion within the non-pixel region; an organic electroluminescent layer over the separator in the pixel region surrounded by the separator; and a second electrode on an entire surface of the organic electroluminescent layer and the separator.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: June 1, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Sung-Joon Bae, Jin-Ook Kim
  • Publication number: 20100110048
    Abstract: The present invention relates to an organic electroluminescent display (OELD) device, more particularly, to a dual panel type OELD device and a method of fabricating the same. The OLED structure has first and second barrier walls having a reverse-taper shape with respect to the first substrate and first and second side surfaces, wherein the walls define novel polymer patterns with varying heights relative to each other.
    Type: Application
    Filed: October 8, 2009
    Publication date: May 6, 2010
    Inventors: Kyung-Hee Min, Sung-Joon Bae, Joon-Suk Lee, Do-Hyung Kim
  • Publication number: 20090261723
    Abstract: An electroluminescent display device includes first and second substrates facing each other and having a pixel region and a non-pixel region; a thin film transistor and an array layer on an inner surface of the first substrate; a first electrode on an inner surface of the second substrate; a buffer layer on the first electrode in the non-pixel region; a shielding pattern on the buffer layer; a separator on the shielding pattern; an emitting layer on the first electrode in the pixel region; a second electrode on the emitting layer; and a connection electrode between the first and second substrates.
    Type: Application
    Filed: June 18, 2009
    Publication date: October 22, 2009
    Inventors: In-Jae Chung, Ki-Yong Kim, Sung-Joon Bae, Jae-Yong Park
  • Patent number: 7560863
    Abstract: An electroluminescent display device includes first and second substrates facing each other and having a pixel region and a non-pixel region; a thin film transistor and an array layer on an inner surface of the first substrate; a first electrode on an inner surface of the second substrate; a buffer layer on the first electrode in the non-pixel region; a shielding pattern on the buffer layer; a separator on the shielding pattern; an emitting layer on the first electrode in the pixel region; a second electrode on the emitting layer; and a connection electrode between the first and second substrates.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: July 14, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: In-Jae Chung, Ki-Yong Kim, Sung-Joon Bae, Jae-Yong Park
  • Patent number: 7365367
    Abstract: An organic electroluminescent device includes a transparent substrate having at least first, second and third pixels defined thereon, a first longitudinal bank located between the first pixel and the second pixel, a second longitudinal bank located between the second pixel and the third pixel, and an organic luminous polymer layer over the substrate and between the first longitudinal bank and the second longitudinal bank. The device also includes a transverse bank extending between the first longitudinal bank and the second longitudinal bank. Sidewalls of the longitudinal banks and the transverse bank slope outwardly. The transverse bank has a height which is less than a height of the longitudinal banks. A method of forming the device utilizes nozzle coating or ink-jet coating, and a specially configured mask for producing the banks of differing heights.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: April 29, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Chang-Wook Han, Sung-Joon Bae, Hee-Sok Pang, Kwan-Soo Kim
  • Patent number: 7211944
    Abstract: An organic electroluminescent display (ELD) device includes first and second substrates having a plurality of sub-pixels defined thereon, an array element layer on the first substrate having a plurality of thin film transistors corresponding to each of the sub-pixels, a connecting electrode on the array element layer connected to one of the thin film transistors, a first electrode on an inner surface of the second substrate, an insulating layer and an electrode separator formed within a boundary region of each of the sub-pixels, the insulating layer formed beneath the first electrode and the electrode separator formed beneath the insulating layer, and an organic light-emitting layer and a second electrode formed in each of the sub-pixels, wherein the electrode separator includes a first region having a pattern structure for separately forming the organic light-emitting layer and the second electrode within each of the sub-pixels, a second region having a pattern structure for directly contacting the connectin
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: May 1, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Sung-Joon Bae, Jae-Yong Park
  • Publication number: 20060033446
    Abstract: An organic electroluminescent device including a driving element having a driving gate electrode connected to the switching element, the driving gate electrode formed uniformly on the substrate, a driving source electrode having a first driving source electrode along a first direction and a plurality of second driving source electrodes extending from the first driving source electrode along a second direction crossing the first direction, a driving drain electrode spaced apart from the driving source electrode, the driving drain electrode having a first driving drain electrode along the first direction and a plurality of second driving drain electrodes extending from the first driving drain electrode along the second direction, wherein the plurality of second driving source electrodes alternate with the plurality of second driving drain electrodes, wherein the driving source electrode and the driving drain electrode including an interval therebetween are facing the driving gate electrode.
    Type: Application
    Filed: June 17, 2005
    Publication date: February 16, 2006
    Inventors: Kyung-Man Kim, Doo-Hyun Ko, Sung-Joon Bae
  • Patent number: 6979583
    Abstract: An electro-luminescent display and a method of manufacturing thereof prevents the formation of a barrier interface between the anode electrode and the electro-luminescent layer by placing the electro-luminescent layer directly on the anode electrode so that there is no need to etch a subsidiary layer so that the electro-luminescent layer and the anode electrode have excellent electrical contact. The elimination of this etching step prevents damage to the anode electrode caused by collision of ions with the anode electrode during the etching process. Further, etch remainders or contaminant particles that exist in the etchant gas are prevented from accumulating on the anode electrode. Thus, the charge carriers of the anode are easily transported across the interface between the anode electrode and the electro-luminescent layer so as to greatly improve the expected life span, the brightness, and the efficiency of the electro-luminescent display.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: December 27, 2005
    Assignee: LG Philips LCD Co., Ltd.
    Inventors: Sung-Joon Bae, Jae-Yong Park
  • Publication number: 20050236956
    Abstract: An electroluminescent display device includes first and second substrates facing each other and having a pixel region and a non-pixel region; a thin film transistor and an array layer on an inner surface of the first substrate; a first electrode on an inner surface of the second substrate; a buffer layer on the first electrode in the non-pixel region; a shielding pattern on the buffer layer; a separator on the shielding pattern; an emitting layer on the first electrode in the pixel region; a second electrode on the emitting layer; and a connection electrode between the first and second substrates.
    Type: Application
    Filed: April 18, 2005
    Publication date: October 27, 2005
    Applicant: L.G.PHILIPS LCD CO. INC.
    Inventors: In-Jae Chung, Ki-Yong Kim, Sung-Joon Bae, Jae-Yong Park
  • Patent number: 6956547
    Abstract: A driving circuit in an organic electroluminescent device includes a gate driver unit for sequentially outputting a control signal to select gate lines in a luminescent array unit and a current driver unit for supplying picture data to a data lines in the luminescent array unit corresponding to the gate lines selected by the gate driver unit and selectively driving organic electroluminescent devices of the selected line. The driving circuit includes a minimum gray level judgment unit for determining whether the picture data is of a predetermined minimum gray level; and a switching unit for receiving a control signal according to the determination made by the minimum gray level judgment unit and for selectively supplying a reference voltage or a reference current to the selectively driven organic electroluminescent devices.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: October 18, 2005
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Sung-Joon Bae, Han-Sang Lee, Myung-Ho Lee, Joon-Kyu Park