Patents by Inventor Eiji Matsuzaki

Eiji Matsuzaki 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: 20100279578
    Abstract: A manufacturing method of an organic EL display device which can suppress a manufacturing cost while effectively preventing organic EL layers from being influenced by moisture is provided. An organic EL element is covered with a resin sheet. The resin sheet is adhered to a sealing substrate and an element substrate on which organic EL elements are formed by lamination. Laser beams are radiated to a terminal portion formed on the element substrate so as to generate impact waves in the terminal portion by laser beams thus removing the resin sheet from the terminal portion. Thereafter, edge portions of the sealing substrate and edge portions of the resin sheet are removed along a line a. Due to such steps, it is possible to manufacture highly reliable organic EL display devices at a low cost.
    Type: Application
    Filed: June 17, 2010
    Publication date: November 4, 2010
    Inventors: Eiji Matsuzaki, Yoshinori Ishii, Satoru Kase
  • Publication number: 20100141135
    Abstract: The present invention provides a manufacturing method of a display device which can favorably cut a display panel having the structure where a resin layer is sandwiched between an element substrate and a sealing substrate. The manufacturing method of a display device includes the steps of: forming a display panel by sandwiching a resin which is hardened by any one of electromagnetic waves, radioactive rays and electron beams and heat between an element substrate having a display region in which a plurality of light emitting elements are formed and a sealing substrate in such a manner that the resin covers the display region; radiating at least one of electromagnetic waves, radioactive rays and electron beams to the display panel thus hardening first portions of the resin and leaving second portions of the resin in a state softer than the first portions; separating the display panel at positions corresponding to the second portions; and heating the separated display panel thus further hardening the resin.
    Type: Application
    Filed: December 4, 2009
    Publication date: June 10, 2010
    Inventors: Satoru KASE, Yoshinori Ishii, Eiji Matsuzaki
  • Publication number: 20100102302
    Abstract: An organic electroluminescence device which can prevent the deterioration thereof attributed to moisture by preventing a desiccant from influencing organic electroluminescence elements is provided. The organic electroluminescence device includes: first and second substrates which are arranged to face each other in an opposed manner with a gap therebetween; organic electroluminescence elements which are formed on a first surface of the first substrate which faces the second substrate in an opposed manner; a desiccant which is formed on a second surface of the second substrate which faces the first substrate in an opposed manner; and a resin which is adhered to the first and second surfaces and covers the desiccant and the organic electroluminescence elements.
    Type: Application
    Filed: October 23, 2009
    Publication date: April 29, 2010
    Inventors: Satoru KASE, Yoshinori Ishii, Eiji Matsuzaki
  • Publication number: 20100060158
    Abstract: An organic EL display panel which does not impair a sealing effect and ensures a smooth edge portion when individual organic EL display panels are separated from a mother panel on which a plurality of organic EL display panels are formed is provided. A mother panel is formed by adhering a mother element substrate and a mother sealing substrate by way of an adhesive material sheet. In separating the mother panel into individual organic EL display panels, laser beams are radiated to the mother panel along separation lines so as to lower an adhesive strength of the adhesive material sheet at such portions. Thereafter, scribing is applied to the mother panel along the separation lines. Due to such a constitution, it is possible to realize an organic EL display panel without lowering a sealing effect and ensuring smooth appearance.
    Type: Application
    Filed: September 4, 2009
    Publication date: March 11, 2010
    Inventors: Satoru KASE, Yoshinori ISHII, Eiji MATSUZAKI
  • Publication number: 20100035505
    Abstract: A mother element substrate and a mother seal substrate are adhered with each other via an adhesive sheet. An adhesive sheet cut portion of the adhesive sheet corresponding to a terminal portion is formed at a time when the adhesive sheet is applied to the mother seal substrate, thus requiring no processing of the terminal portion afterward. Since the adhesive sheet cut portion extends to reach an edge of the adhesive sheet to prevent deformation of the adhesive sheet around the terminal portion after adhering the mother element substrate and the mother seal substrate with each other under the negative pressure so as to be returned to the atmosphere, thus realizing the solid seal type organic EL display device with high reliability.
    Type: Application
    Filed: August 7, 2009
    Publication date: February 11, 2010
    Inventors: Yoshinori ISHII, Satoru Kase, Eiji Matsuzaki
  • Publication number: 20090243474
    Abstract: A sealing substrate is arranged to oppositely face an element substrate on which organic EL layers are formed in a matrix array with a sealing material sandwiched therebetween. A gel-state desiccant is filled in an inner space surrounded by the element substrate, the sealing substrate and the sealing material. Since the gel-state desiccant is in a gel state, the gel-state desiccant is flexibly filled in the inner space of the organic EL display device thus completely eliminating a gap. Since the inner space is filled with the gel-state desiccant, moisture hardly intrudes into the inner space from the outside and, at the same time, a mechanical strength of the organic EL display device is also enhanced.
    Type: Application
    Filed: March 11, 2009
    Publication date: October 1, 2009
    Inventors: Satoru Kase, Yoshinori Ishii, Eiji Matsuzaki
  • Publication number: 20090200924
    Abstract: A sealing method of an organic EL display device which can effectively prevent the organic EL display device from being influenced by moisture and can suppress the manufacturing cost of the organic EL display device is provided. An organic EL element is covered with a resin sheet. The resin sheet is adhered to a sealing substrate and an element substrate on which organic EL elements are formed by lamination. At a peripheral portion of the organic EL display device, between the element substrate and the sealing substrate, an organic seal is filled to a side portion of the resin sheet using an under-filling method, and the organic seal is cured by radiating ultraviolet rays. Due to such constitution, it is possible to realize the highly reliable sealing of the organic EL display devices at a low cost.
    Type: Application
    Filed: November 5, 2008
    Publication date: August 13, 2009
    Inventors: Eiji Matsuzaki, Yoshinori Ishii, Satoru Kase
  • Publication number: 20090134786
    Abstract: A manufacturing method of an organic EL display device which can suppress a manufacturing cost while effectively preventing organic EL layers from being influenced by moisture is provided. An organic EL element is covered with a resin sheet. The resin sheet is adhered to a sealing substrate and an element substrate on which organic EL elements are formed by lamination. Laser beams are radiated to a terminal portion formed on the element substrate so as to generate impact waves in the terminal portion by laser beams thus removing the resin sheet from the terminal portion. Thereafter, edge portions of the sealing substrate and edge portions of the resin sheet are removed along a line a. Due to such steps, it is possible to manufacture highly reliable organic EL display devices at a low cost.
    Type: Application
    Filed: November 6, 2008
    Publication date: May 28, 2009
    Inventors: Eiji Matsuzaki, Yoshinori Ishii, Satoru Kase
  • Publication number: 20090128021
    Abstract: A bonding agent sheet (30) including removed bonding agent portions (31) corresponding to terminal portions (102) is bonded to a mother sealing substrate (400). Further, a mother element substrate (100) including display regions (101) and the terminal portions (102) is bonded to the bonding agent sheet (30) to form a mother panel (200). Then, the mother panel (200) is separated into individual organic EL display panels to form organic EL display devices.
    Type: Application
    Filed: November 18, 2008
    Publication date: May 21, 2009
    Inventors: Yoshinori ISHII, Satoru KASE, Eiji MATSUZAKI
  • Publication number: 20090115325
    Abstract: An organic EL element section (1000) is formed on a circuit formation section (102) formed on a circuit board (101). The organic EL element section (1000) is covered with a protective layer (113) including an SiNxOy film. The SiNxOy film has infrared absorption characteristics including: an Si—O—Si stretching vibration absorption peak appearing at energy lower than 1,000 cm?1; an absorption intensity of an Si—N stretching vibration absorption peak appearing in the vicinity of around 870 cm?1 which is 0.75 or more times an absorption intensity of the Si—O—Si stretching vibration absorption peak; and an absorption peak intensity in a range of 2,000 to 4,000 cm?1, which is 5% or less of the absorption intensity of the Si—N stretching vibration absorption peak. Thus, the protective film having an excellent moisture-blocking property may be obtained, and life property of an organic EL display device may be improved.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 7, 2009
    Inventors: Eiji Matsuzaki, Yoshinori Ishii, Satoru Kase
  • Publication number: 20090096366
    Abstract: An organic EL display device which can prolong a lifetime by suppressing a growth of black spots when the display device is operated for a long time can be realized. An element substrate on which organic EL layers are formed is hermetically adhered to a sealing substrate on which a desiccant is mounted by way of a sealing portion. The element substrate and the sealing substrate are curved outwardly. Particularly, by curving the element substrate outwardly, a growth of black points can be prevented when the organic EL display device is operated for a long time. Accordingly, a lifetime of the organic EL display device can be remarkably prolonged.
    Type: Application
    Filed: October 15, 2008
    Publication date: April 16, 2009
    Inventors: Kazuhiko Kai, Eiji Matsuzaki, Masato Ito, Noriharu Matsudate, Ryoji Iwamura
  • Publication number: 20090015151
    Abstract: The present invention provides an organic light emitting device in which an upper transparent electrode 10 of an organic light emitting device 2 is connected electrically at a contact hole portion 122 to a current supply line 121 disposed in the same layer as that of and extending in parallel with a gate line 106. That is, a hole transport layer 5 and an electron transport layer 9 of the organic light emitting device 2 are formed over the entire display region, and then a contact hole portion 122 is removed to electrically connect the current supply line 121 and the upper transparent electrode 10, thereby decreasing unevenness of luminance due to wiring resistance of the upper transparent electrode.
    Type: Application
    Filed: July 8, 2008
    Publication date: January 15, 2009
    Inventors: Shingo Ishihara, Eiji Matsuzaki
  • Publication number: 20090008128
    Abstract: The invention provides an electronic apparatus having a metal core substrate including a metal plate, an insulating layer formed on the metal plate and a conductive layer formed on the insulating layer, and an electronic part, and to which the conductive layer and a terminal of the electronic part are connected. In the electronic apparatus, a member having a high thermal conductivity is arranged so as to be in contact with both of the metal plate and the electronic part. Accordingly, a heat radiating property of the electronic apparatus is increased.
    Type: Application
    Filed: July 31, 2008
    Publication date: January 8, 2009
    Inventors: Takehiko Hasebe, Takehide Yokozuka, Nobuyuki Ushifusa, Masahide Harada, Eiji Matsuzaki, Hiroshi Hozoji
  • Publication number: 20080316526
    Abstract: In order to provide an image forming apparatus through which the user can perform a print out under which a desirably printed out image is laid out on a desired record sheet, the image forming apparatus according to the present invention includes an operation panel unit which displays an input data preview window that displays input data which is input from an external device or input data which is read out by a manuscript readout mechanism, an output sheet size selection window that selects an output sheet size, an output application setup selection window that selects an output application setup, an output figuration preview window that displays an output figuration which is determined based on an output sheet size which is selected by the output sheet size selection window and an output application setup which is selected by the output application setup selection window, an input data adjustment window that adjusts input data, and an output result preview window that displays input data which is adjusted b
    Type: Application
    Filed: January 25, 2008
    Publication date: December 25, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Eiji MATSUZAKI, Hikonosuke UWAI
  • Patent number: 7425762
    Abstract: The invention provides an electronic apparatus having a metal core substrate including a metal plate, an insulating layer formed on the metal plate and a conductive layer formed on the insulating layer, and an electronic part, and to which the conductive layer and a terminal of the electronic part are connected. In the electronic apparatus, a member having a high thermal conductivity is arranged so as to be in contact with both of the metal plate and the electronic part. Accordingly, a heat radiating property of the electronic apparatus is increased.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: September 16, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Takehiko Hasebe, Takehide Yokozuka, Nobuyuki Ushifusa, Masahide Harada, Eiji Matsuzaki, Hiroshi Hozoji
  • Publication number: 20080218065
    Abstract: To reduce brightness variation by wiring resistance of an upper part transparent electrode in an organic luminescence element, a stripe-shape first auxiliary wiring 11 extending in a direction parallel to a signal line is formed on the upper part transparent electrode, by a precise mask vapor deposition method. Then, a stripe-shape second auxiliary wiring 12 extending in a direction parallel to a scanning line is formed by a precise mask vapor deposition method.
    Type: Application
    Filed: March 4, 2008
    Publication date: September 11, 2008
    Inventors: Shingo Ishihara, Eiji Matsuzaki, Hiroshi Kageyama
  • Patent number: 7365487
    Abstract: The organic electroluminescence display apparatus of the present invention comprises a first and second substrates, the former being coated with banks for separating pixels, a lower electrode, organic light-emitting layer and upper electrode of a transparent material in this order, and the latter being coated with a color filter and electroconductive shadow pattern, wherein the organic light-emitting layer surrounded by the banks for separating pixels faces the color filter, and the first and second substrates face each other in such a way that the upper electrode over the banks for separating pixels is electrically connected to the electroconductive shadow pattern. This structure connects at least one of the upper electrode and electroconductive shadow pattern to a power supply point, to control ununiform emitted light brightness which may result from voltage drop at the upper transparent electrode.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: April 29, 2008
    Assignee: Hitachi Displays, Ltd.
    Inventors: Hiroyasu Matsuura, Shingo Ishihara, Keiji Takanosu, Eiji Matsuzaki
  • Publication number: 20070241671
    Abstract: The present invention enhances the light utilization efficiency of an organic EL display device. A pixel electrode PXE is formed on a protective film PAS and first banks BNKA which are constituted of a first insulation layer are formed on the pixel electrode PXE in a convex shape. On the pixel electrode PXE, in a B1 region and a B2 region defined between a pair of first banks BNKA (A1 region, A2 region), second-1 banks BNKB-1 which are constituted of a second insulation layer and are slightly raised are formed. Further, on the second-1 banks BNKB-1, second-2 banks BNKB-2 which are constituted of the second insulation layer are formed. The second-2 banks BNKB-2 have an inverted-trapezoidal shape and surfaces of the second-2 banks BNKB-2 on sides which face the first bank BNKA have an inverted taper on a substrate side.
    Type: Application
    Filed: April 10, 2007
    Publication date: October 18, 2007
    Inventors: Kazuhiko Kai, Masato Ito, Eiji Matsuzaki
  • Patent number: 7258586
    Abstract: When any of pixels is not lit in an organic EL display having an organic EL layer between a first electrode and a second electrode, an organic layer of the pixel is observed. If the organic layer of the pixel contains foreign matter, the second electrode is separated into a region in contact with the foreign matter and a region not in contact with both the contact region and the foreign matter. Thus, not-lit display regions are reduced as less as possible, making it possible to manufacture an organic EL display excellent in display performance.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: August 21, 2007
    Assignee: Hitachi Displays, Ltd.
    Inventors: Takuo Tamura, Mikio Hongo, Masaaki Okunaka, Shinichi Kato, Eiji Matsuzaki, Masato Ito, Masatomo Terakado
  • Publication number: 20070152579
    Abstract: A display device includes a first substrate having a display area with a plurality of pixels on a main surface and a first seal area formed at a periphery of the display area, and a second substrate disposed to cover the main surface of the first substrate, and having a second seal area at a part of the second substrate opposite to the first seal area. At least one driving circuit which drives the plurality of pixels is arranged outside of the display area on the first substrate. The second substrate has a recessed portion formed at a part of the main surface of the second substrate within the second seal area, and a moisture absorbent layer having a light shielding property adheres to the recessed portion and is arranged to cover the display area and the at least one driving circuit.
    Type: Application
    Filed: March 13, 2007
    Publication date: July 5, 2007
    Inventors: Issei Takemoto, Eiji Matsuzaki, Yuji Mori, Nobuyuki Ushifusa, Hiroyasu Matsuura