Patents by Inventor Jin-Koo Chung

Jin-Koo Chung 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: 20090212689
    Abstract: An organic light emitting device including a substrate, a first electrode formed on the substrate and including a recess portion, a partition formed on the first electrode and including an opening exposing the recess portion of the first electrode, an organic light emitting member formed in the recess portion of the first electrode and the opening of the partition, and a second electrode formed on the partition and the organic light emitting member. A gap is formed between a lower portion of the partition and the recess portion of the first electrode and at least a portion of the organic light emitting member is disposed in the gap.
    Type: Application
    Filed: October 1, 2008
    Publication date: August 27, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-Won LEE, Chang-Woong CHU, Jin-Koo CHUNG
  • Publication number: 20090200544
    Abstract: An organic light emitting device includes first, second, and third pixels each displaying a different color. Each pixel includes a first electrode, a second electrode facing the first electrode, and an emission layer between the first and second electrodes. The first electrodes of the first and second pixels respectively include a first transparent conductive layer and a translucent conductive layer disposed on at least one of lower and upper portions of the first transparent conductive layer and forming microcavities together with the second electrodes, and the first electrode of the third pixel includes a second transparent conductive layer that is different from the first transparent conductive layer and a translucent conductive layer disposed on at least one of upper and lower portions of the second transparent conductive layer and forming a microcavity together with the second electrode.
    Type: Application
    Filed: April 30, 2008
    Publication date: August 13, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Soo LEE, Jin-Koo CHUNG, Seong-Min KIM, Chang-Woong CHU
  • Publication number: 20090153033
    Abstract: An organic light-emitting diode device and a method of manufacturing the organic light-emitting diode device are disclosed. The organic light-emitting diode device includes a thin film transistor, an anode electrode electrically connected to the thin film transistor, a hole injection layer formed on the anode electrode, an etch-out buffer layer formed on the hole injection layer, the etch-out buffer layer having a first hole that exposes the hole injection layer, a barrier rib formed on the etch-out buffer layer, the barrier rib having a second hole that overlaps the first hole, an organic emission layer formed on a portion of the hole injection layer which is exposed through the first hole and second hole, and a cathode electrode formed on the organic emission layer.
    Type: Application
    Filed: August 29, 2008
    Publication date: June 18, 2009
    Inventors: Dong-Won LEE, Chang-Woong Chu, Jin-Koo Chung
  • Patent number: 7547920
    Abstract: A display apparatus includes a light-emitting unit. The light-emitting unit includes a first electrode, a bank, an organic light-emitting layer and a second electrode. The first electrode is formed on a substrate. The first electrode receives a first driving signal from a circuit unit. The bank surrounds sides of the first electrode and has a receiving portion formed on an upper face of the bank. The organic light-emitting layer is formed on the first electrode. The second electrode is formed on the organic light-emitting layer. The second electrode receives a second driving signal from the circuit unit. Therefore, even though the organic light-emitting material is abnormally dropped onto an unintended position, the receiving portion prevents the organic light-emitting material from flowing into a neighboring cavity, so that yield increases and productivity is enhanced.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: June 16, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Won Lee, Joon-Hoo Choi, Jin-Koo Chung
  • Publication number: 20090140647
    Abstract: In a display device and a method of manufacturing the display device, the display device has a substrate having a first region and a second region disposed at a peripheral portion of the first region. The substrate includes a plurality of first electrodes disposed on the first region and an insulation member selectively disposed in the first region. The insulating member has a plurality of openings that expose a portion corresponding to the first electrodes. The substrate includes light emitting patterns are disposed on the first electrodes through the openings and the substrate has a second electrode disposed on the light emitting patterns. Accordingly, the thickness of the light emitting patterns is uniformity so that the quality of an image generated from the light emitting patterns is improved.
    Type: Application
    Filed: February 6, 2009
    Publication date: June 4, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jin-Koo CHUNG, Joon-Hoo CHOI, Dong-Won LEE
  • Publication number: 20090130385
    Abstract: A method of manufacturing a display device includes preparing an acceptor substrate, preparing a donor substrate having an organic layer; aligning and combining the acceptor substrate and the donor substrate, and keeping a temperature difference between the acceptor substrate and the donor substrate to transfer the organic layer to the acceptor substrate. Thus, the present invention provides a display device that can simplify a process and decrease a consumption rate of an organic material.
    Type: Application
    Filed: January 8, 2008
    Publication date: May 21, 2009
    Inventors: Joo-Hyeon Lee, Chang-Woong Chu, Jin-Koo Chung, Jae-Kook Ha
  • Publication number: 20090101917
    Abstract: A TFT substrate with reduced pixel defect rate is presented. The TFT substrate includes a pixel electrode, a negative line to apply a reverse voltage to the pixel electrode, and a recovery transistor including a drain electrode overlapping a part of the negative line with a insulating layer disposed between the negative line and the drain electrode. A contact hole is formed on the negative line and the drain electrode, and a bridge electrode connects the negative line and the drain electrode through the contact hole. The thin film transistor substrate and a display apparatus presented herein protect a data line assembly metal layer and decrease pixel defect. An improved reverse voltage efficiency is applied to a pixel electrode to protect a drain electrode.
    Type: Application
    Filed: November 21, 2008
    Publication date: April 23, 2009
    Inventors: Song-mi HONG, Jung-soo Rhee, Beohm-rock Choi, Jin-koo Chung, Jianpu Wang, Dong-won Lee
  • Publication number: 20090072730
    Abstract: A display device comprises a first electrode formed on a substrate, a plurality of second electrodes formed on the substrate below the first electrode, an organic luminescent layer formed between the first electrode and the plurality of second electrodes, and a color filter layer formed on the substrate, wherein the color filter layer includes a red filter, a green filter, a blue filter and a white filter.
    Type: Application
    Filed: September 23, 2008
    Publication date: March 19, 2009
    Inventors: Beohm-Rock Choi, Joon-Hoo Choi, Jae-Hoon Chung, Jin-Koo Chung, Dong-Won Lee, Sang-Pil Lee
  • Publication number: 20090058292
    Abstract: A method of manufacturing a flat panel display includes preparing a cover substrate, forming a frit along an edge of the cover substrate, irradiating a first laser to the cover substrate, aligning and combining the cover substrate with the insulating substrate, the insulating substrate having a display element, and irradiating a second laser to the frit interposed between the cover substrate and the insulating substrate. Thus, the present invention provides a flat panel display that can minimize inflow of moisture and hydroxyl from the frit to the display element during the joining process of the insulating substrate and the cover substrate.
    Type: Application
    Filed: June 23, 2008
    Publication date: March 5, 2009
    Inventors: Won-Hoe KOO, Hoon Kim, Jin-Koo Chung
  • Patent number: 7495388
    Abstract: A display device and a method of manufacturing the display device include a substrate having a first region and a second region disposed at a peripheral portion of the first region. The substrate includes a plurality of first electrodes disposed on the first region and an insulation member selectively disposed in the first region. The insulating member has a plurality of openings which expose a portion corresponding to the first electrodes. The substrate includes light emitting patterns disposed on the first electrodes through the openings and the substrate has a second electrode disposed on the light emitting patterns. Accordingly, the thickness of the light emitting patterns is uniform so that the quality of an image generated from the light emitting patterns is improved.
    Type: Grant
    Filed: December 24, 2004
    Date of Patent: February 24, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Koo Chung, Joon-Hoo Choi, Dong-Won Lee
  • Patent number: 7473320
    Abstract: An apparatus includes a drop unit, a transfer unit and a position adjusting unit. The drop unit drops droplets of an organic material. The transfer unit transfers the drop unit along a first direction. The position adjusting unit is interposed between the drop unit and the transfer unit to adjust a position of the drop unit. Therefore, the apparatus of dropping the organic material has a small size and may drop droplets of the organic material onto an accurate position. Furthermore, the transfer unit moves the drop unit quickly, and the position adjusting unit adjusts the position of the drop unit accurately. Therefore, a time difference for drying the organic material injected into a cavity is reduced.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: January 6, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Won Lee, Joon-Hoo Choi, Jin-Koo Chung
  • Publication number: 20090001895
    Abstract: An organic electro-luminescent display device includes barriers in a non-display area to protect a display area from water and oxygen. Barriers may include a permeation prevention barrier, a voltage contact portion, and a blocking layer. A permeation prevention barrier includes contact portions where a barrier layer having a lower permeability than a passivation layer penetrates through the passivation layer. A voltage contact portion penetrates the passivation layer so that a signal supply line contacts a conductive material. A blocking layer covers a wall, a planarization layer, and an inorganic insulation layer, and has a lower permeability than the planarization layer, the wall, and the inorganic insulation layer. The permeation prevention barrier, the voltage contact portion, and the blocking layer may be used in various combinations.
    Type: Application
    Filed: October 31, 2007
    Publication date: January 1, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hoon KIM, Jin Koo CHUNG, Won Hoe KOO, Jung Mi CHOI
  • Publication number: 20090002625
    Abstract: A display apparatus includes a first substrate, a second substrate facing the first substrate, a joining layer interposed between the first and second substrates, and a buffer layer interposed between the joining layer and at least one of the first and second substrates. The buffer layer has a lower heat conductivity than the joining layer to protect the first or second substrate from the heat generated in the joining layer during fabrication.
    Type: Application
    Filed: June 19, 2008
    Publication date: January 1, 2009
    Inventors: Won-Hoe Koo, Hoon Kim, Jin-Koo Chung, Jung-Mi Choi
  • Patent number: 7470950
    Abstract: A TFT substrate with reduced pixel defect rate is presented. The TFT substrate includes a pixel electrode, a negative line to apply a reverse voltage to the pixel electrode, and a recovery transistor including a drain electrode overlapping a part of the negative line with a insulating layer disposed between the negative line and the drain electrode. A contact hole is formed on the negative line and the drain electrode, and a bridge electrode connects the negative line and the drain electrode through the contact hole. The thin film transistor substrate and a display apparatus presented herein protect a data line assembly metal layer and decrease pixel defect. An improved reverse voltage efficiency is applied to a pixel electrode to protect a drain electrode.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: December 30, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Song-mi Hong, Jung-soo Rhee, Beohm-rock Choi, Jin-koo Chung, Jianpu Wang, Dong-won Lee
  • Publication number: 20080273072
    Abstract: In an apparatus of forming a thin film, the apparatus has a printing chamber that forms a thin film on a substrate. The apparatus has at least two drying chambers that receive the substrate on which the thin film is formed and dry the thin film on the substrate. The two drying chambers may be independently controlled. Accordingly, the apparatus may reduce process time for forming the thin film without contamination of the substrate.
    Type: Application
    Filed: July 21, 2008
    Publication date: November 6, 2008
    Inventors: Jin-Koo CHUNG, Joon-Hoo CHOI, Dong-Won LEE
  • Publication number: 20080265765
    Abstract: There are provided an organic EL device and a method of fabricating the same. An effective display area on which an anode electrode, an organic luminescence layer and a cathode electrode are formed is sealed by means of a metal can, a glass cap or an organic/inorganic material. A power source is applied to the anode and the cathode electrodes through a power transferring part extended from the effective display area to a non-effective display area. Accordingly, it is possible to reduce the oxidation of the cathode electrode of the organic EL device, thereby preventing the electrical contact characteristics of the cathode electrode from being deteriorated.
    Type: Application
    Filed: June 19, 2008
    Publication date: October 30, 2008
    Inventors: Joon-Hoo Choi, Beom-Rak Choi, Chong-Chul Chai, Jin-Koo Chung
  • Patent number: 7443093
    Abstract: A display device for increasing a lifetime includes a base substrate having a plurality of pixel regions, a plurality of first electrodes formed on the pixel regions, a light emitting layer including first, second and third light emitting portions to generate first, second and third lights, a second electrode that is electrically coupled to the light emitting layer. At least two of the first, second and third light emitting portions have different areas from each other. The areas of the light emitting portions are determined by reference lifetimes. Therefore, the lifetime for the display device is increased.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: October 28, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Wang Jianpu, Jin-Koo Chung
  • Publication number: 20080258618
    Abstract: A display panel for an organic light emitting display including a plurality of anode electrodes and a cathode electrode that is supplied with a predetermined voltage and includes a first portion facing the anode electrodes and a second portion receiving the predetermined voltage and having a different cross section than the first portion. A plurality of light emitting members is arranged between the anode electrodes and the cathode electrode, and a conductive line transmits the predetermined voltage and contacts the second portion of the cathode electrode.
    Type: Application
    Filed: June 25, 2008
    Publication date: October 23, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jin-Koo CHUNG, Dong-Won LEE, Beohm-Rock CHOI
  • Publication number: 20080238311
    Abstract: An organic light emitting display device and a method of fabricating the same are disclosed. One embodiment includes an organic light emitting display device including an anode, an organic light emitting layer, and a cathode on a substrate, an encapsulation member protecting the organic light emitting display device, a first sealant bonding the substrate and the encapsulation member together, and a second sealant formed of a frit glass to adhere to a periphery of the first sealant.
    Type: Application
    Filed: February 29, 2008
    Publication date: October 2, 2008
    Inventors: Un-Cheol SUNG, Jin-Koo Chung
  • Publication number: 20080231175
    Abstract: A display device includes a display panel divided into a display area and a non-display area. An encapsulation member covers the display panel, and a sealant is positioned between the display panel and the encapsulation member. A desiccant member is disposed between the display panel and the encapsulation member. The display panel includes an organic layer formed in the display area and a common electrode covering the organic layer, the common electrode extending in the non-display area. The desiccant member is disposed along a periphery of the common electrode in the non-display area.
    Type: Application
    Filed: December 31, 2007
    Publication date: September 25, 2008
    Inventors: Un-cheol Sung, Jin-koo Chung