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).

  • Patent number: 7414362
    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: Grant
    Filed: July 5, 2005
    Date of Patent: August 19, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Koo Chung, Dong-Won Lee, Beohm-Rock Choi
  • Patent number: 7410251
    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: Grant
    Filed: November 17, 2004
    Date of Patent: August 12, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Koo Chung, Joon-Hoo Choi, Dong-Won Lee
  • Publication number: 20080171132
    Abstract: An evaporation apparatus that is capable of determining the amount of organic material that is used for deposition of an organic layer (e.g. in an OLED) is presented. The apparatus evaporates an organic material through multiple stages and and includes: an evaporation source that evaporates the organic material and includes a heat source, a substrate supporter that supports a substrate, a sensor that senses a degree of evaporation of the organic material, a controller that calculates a deposition thickness of the organic material that is deposited during the stabilization stage, the deposition stage and the cooling stage by using the degree of evaporation sensed by the sensor, and a usage amount calculator that calculates a usage amount of the organic material by using a conversion factor between the deposition thickness of the organic material and the usage amount of the organic material, and the deposition thickness calculated by the controller.
    Type: Application
    Filed: November 9, 2007
    Publication date: July 17, 2008
    Inventors: Joo-hyeon LEE, Chang-mo Park, Jin-koo Chung
  • Patent number: 7394193
    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: Grant
    Filed: September 1, 2006
    Date of Patent: July 1, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon-Hoo Choi, Beom-Rak Choi, Chong-Chul Chai, Jin-Koo Chung
  • Publication number: 20080150434
    Abstract: A display device includes; an insulating substrate, a thin film transistor disposed on the insulating substrate and which comprises a drain electrode, a wall disposed on the thin film transistor and which includes an opening and a contact hole which exposes the drain electrode, a pixel electrode connected to the drain electrode through the contact hole and which comprises a first part in direct contact with the insulating substrate and a second part connected to the first part, an organic layer disposed on the pixel electrode and which comprises an organic emission layer, and a common electrode disposed on the organic layer
    Type: Application
    Filed: August 22, 2007
    Publication date: June 26, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Un-cheol SUNG, Jin-koo CHUNG, Jung-soo RHEE
  • Publication number: 20080145534
    Abstract: A deposition apparatus comprises a first cavity which comprises an evaporation source entrance and a gas discharge port; a second cavity operable to communicate with the first cavity through the evaporation source entrance; an opening/closing part which controllably opens and closes the evaporation source entrance; and a driver for moving the evaporation source between the first cavity and the second cavity through the evaporation source entrance.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 19, 2008
    Inventors: Joo-hyeon Lee, Jin-koo Chung, Chang-mo Park
  • Publication number: 20080118630
    Abstract: Apparatus and a method for forming a thin film including a vacuum chamber, a substrate holder located on the inner upper side of the vacuum chamber to secure a substrate, an evaporation source located on the inner lower side of the vacuum chamber to evaporate a deposition material, an evaporation source shutter substantially confining the deposition material evaporated to the evaporation source, a sensor located within the vacuum chamber to detect the thickness of the deposition material deposited on itself, and a calculation portion calculating the thickness of the deposition material deposited on the evaporation source shutter using data detected by the sensor.
    Type: Application
    Filed: November 8, 2007
    Publication date: May 22, 2008
    Inventors: Chang-Mo PARK, Jin-Koo Chung, Joo-Hyeon Lee
  • Publication number: 20080106192
    Abstract: An organic electroluminescent display having better photoluminescence efficiency includes a first electrode, an organic light-emitting layer, and a second electrode sequentially disposed on a first surface of an insulating substrate, and a plurality of convex patterns disposed on a second surface of the insulating substrate opposite to the first surface and spaced apart from each other, and which are formed of a transparent sealant having a viscosity of 5,000 to 150,000 cp and comprised of an epoxy- or acrylate-based resin, together with a plurality of concave patterns interposed between the convex patterns.
    Type: Application
    Filed: November 6, 2007
    Publication date: May 8, 2008
    Inventors: Won-hoe KOO, Hoon Kim, Jin-koo Chung, Jung-mi Choi
  • Patent number: 7365496
    Abstract: An organic light-emitting panel includes a data line, a scan line, a voltage applying line, a switching device, an organic light emitting device and a driving device. The voltage applying line satisfies a condition expressed as V ? ( max ) n < A ? ? ? ? VData ? GS n ? [ Volt ] , wherein ?Vmax is a maximum voltage drop, ‘n’ is a number of pixels that are electrically connected to the voltage applying line, ‘A’ is a correction coefficient that is in a range from about 1 to about 4, ?Vdata is a voltage difference between the gray scales, and GS is a number of gray scale. According to the organic light-emitting panel, the voltage drop of the voltage applying line is reduced.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: April 29, 2008
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Beohm-Rock Choi, Joon-Hoo Choi, Jin-Koo Chung
  • Publication number: 20080090484
    Abstract: In a method of manufacturing a light emitting element, a plurality of first electrodes arranged in a matrix shape is formed on a pixel area of a base substrate. A bank is formed between the first electrodes. A light emitting material is ejected on a portion of the first electrodes spaced apart from one another to form a plurality of first light emitting patterns. The light emitting material is erected on a portion of the first electrodes between the first light emitting patterns to form a plurality of second light emitting patterns. A second electrode is formed on the first and second light emitting patterns. Therefore, a luminance of the light emitting element is improved and uniformized.
    Type: Application
    Filed: December 10, 2007
    Publication date: April 17, 2008
    Inventors: Dong-Won Lee, Joon-Hoo Choi, Jin-Koo Chung
  • Publication number: 20080067930
    Abstract: An organic light emitting display is provided, which includes: a first electrode formed on a substrate; a partition having an opening exposing the first electrode at least in part; an auxiliary electrode formed on the partition and having substantially the same planar shape as the partition; an organic light emitting member formed on the first electrode and disposed substantially in the opening; and a second electrode formed on the light emitting member and the auxiliary electrode.
    Type: Application
    Filed: November 20, 2007
    Publication date: March 20, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.,
    Inventors: Jin-Koo CHUNG, Joon-Hoo CHOI, Beom-Rak CHOI
  • Publication number: 20080054801
    Abstract: An organic light emitting element is formed on the substrate. The organic light emitting element includes a first electrode, a bank, a surface energy, an organic light emitting member and a second electrode. The first electrode receives the first driving signal. The first electrode has a first surface energy. The bank surrounds sides of the first electrode. The surface energy lowering pattern is formed on the bank. The surface energy lowering pattern has a second surface energy that is lower than the first surface energy. The organic light emitting member is formed on the first electrode. The second electrode receives a second driving signal to display an image. Therefore, an image display quality of the display apparatus is improved.
    Type: Application
    Filed: October 31, 2007
    Publication date: March 6, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-Won Lee, Joon-Hoo Choi, Jin-Koo Chung
  • Patent number: 7336031
    Abstract: An organic light emitting display is provided, which includes: a first electrode formed on a substrate; a partition having an opening exposing the first electrode at least in part; an auxiliary electrode formed on the partition and having substantially the same planar shape as the partition; an organic light emitting member formed on the first electrode and disposed substantially in the opening; and a second electrode formed on the light emitting member and the auxiliary electrode.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: February 26, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Koo Chung, Joon-Hoo Choi, Beom-Rak Choi
  • Patent number: 7326584
    Abstract: In a method of manufacturing a light emitting element, a plurality of first electrodes arranged in a matrix shape is formed on a pixel area of a base substrate. A bank is formed between the first electrodes. A light emitting material is ejected on a portion of the first electrodes spaced apart from one another to form a plurality of first light emitting patterns. The light emitting material is erected on a portion of the first electrodes between the first light emitting patterns to form a plurality of second light emitting patterns. A second electrode is formed on the first and second light emitting patterns. Therefore, a luminance of the light emitting element is improved and uniformized.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: February 5, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Won Lee, Joon-Hoo Choi, Jin-Koo Chung
  • Patent number: 7314771
    Abstract: A method of manufacturing a display apparatus includes: forming a peripheral circuit, a first electrode and a bank on a substrate; forming a surface energy lowering pattern on the bank; forming an organic light emitting member on the first electrode; and forming a second electrode on the organic light emitting member. The first electrode receives a first driving signal. The first electrode has a first surface energy. The bank surrounds at least one side of the first electrode. The surface energy lowering pattern has a second surface energy which is lower than the first surface energy. The second electrode receives a second driving signal to display an image. Therefore, an image display quality of the display apparatus is improved.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: January 1, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Won Lee, Joon-Hoo Choi, Jin-Koo Chung
  • Patent number: 7301168
    Abstract: An organic light emitting display according to an embodiment of the invention includes: a substrate; a first electrode disposed on the substrate; a first partition disposed on the first electrode and having an opening exposing the first electrode; a second partition that is disposed on the first partition, wider than the first partition, defines an emission area, and includes photosensitive organic material; an emission layer disposed in the emission area; and a second electrode disposed on the emission layer.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: November 27, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Soo Rhee, Jianpu Wang, Song-Mi Hong, Dong-Won Lee, Jin-Koo Chung
  • Publication number: 20070190233
    Abstract: An apparatus for manufacturing a display device which includes an insulating substrate and a plurality of sub-pixels provided in a substantially matrix shape on the insulating substrate, each pixel having a pixel electrode exposing region, the apparatus including; a nozzle coater which includes a plurality of sub-nozzle coaters arranged substantially in a row along a predetermined first direction and which drops ink onto the pixel electrode exposing region while moving along a second direction substantially perpendicular to the first direction, and an interval adjusting part which adjusts an interval between the sub-nozzle coaters.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 16, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventor: Jin-koo Chung
  • Publication number: 20070153050
    Abstract: An inkjet apparatus comprising a stage which has a seating area on which a substrate is seated; a plurality of nozzle heads having a plurality of nozzles disposed in a first direction; an ink supply which jets ink through the nozzle heads; a driver which moves the nozzle heads in a first direction relative to the stage and in a second direction which is perpendicular to the first direction; and a nozzle maintenance part which is located on a circumferential part of the seating area.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 5, 2007
    Inventors: Jin-koo Chung, Dong-won Lee, Song-mi Hong
  • Publication number: 20070153071
    Abstract: An inkjet apparatus comprising a jetting unit comprising a stage on which a substrate to be jetted is seated, a nozzle head disposed on the stage; a gas supplying unit comprising an auxiliary gas supply supportively supplying a gas to the jetting unit, and a gas supply selector which selects either a gas supplied from the outside or a gas supplied from the auxiliary gas supply. Thus, the present invention provides an inkjet apparatus which lowers equipment damages due to abnormal gas supply from the outside.
    Type: Application
    Filed: December 18, 2006
    Publication date: July 5, 2007
    Inventors: Jin-koo Chung, Dong-won Lee, Joo-Hyeon Lee, Jun-ho Choi
  • Publication number: 20070153371
    Abstract: A display device includes an insulating substrate, barriers surrounding predetermined regions on the insulating substrate, wherein ink composition is supplied in the predetermined regions, the ink composition including a first solvent which remains in a solid state in a temperature range between 10° C. and 30° C., a second solvent which remains in a liquid state in a temperature range between 10° C. and 30° C., and an organic material, and an organic layer formed in the predetermined regions by volatilizing the first solvent and the second solvent. Thus, the present invention provides a display device with an organic layer of regular quality.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 5, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Soon-wook CHA, Jin-koo CHUNG, Joo-hyeon LEE, Jae-kook HA, Jung-soo RHEE, Soo-yeon LEE, Seong-min KIM