Patents by Inventor Jiro Yamada

Jiro Yamada 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: 7224114
    Abstract: Provided are a display device and a display unit having higher light extraction efficiency. An optical distance L1 between a maximum light-emitting position of a light-emitting layer and a first end portion satisfies L1=tL1+a1 and (2tL1)/?=??1/(2?)+m1. An optical distance L2 between the maximum light-emitting position and a second end portion satisfies L2=tL2+a2 and (2tL2)/?=??2/(2?)+m2.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: May 29, 2007
    Assignee: Sony Corporation
    Inventors: Jiro Yamada, Nobutoshi Asai, Shinichiro Tamura
  • Patent number: 7224115
    Abstract: Disclosed is a display apparatus including a plurality of lower electrodes patterned on a substrate on the basis of each pixel, an auxiliary wiring composed of the same layer as the lower electrodes and arranged in the state of being insulated from the lower electrodes, an insulating film formed on the substrate and provided with pixel openings for exposing central portions of the lower electrodes and connection holes reaching the auxiliary wiring, organic layers so patterned as to cover bottom portions of the pixel openings and to have end portions partly overlapping on each other between the adjacent pixels, and an upper electrode so formed as to cover the organic layers and to be connected to the auxiliary wiring through the connection holes between the organic layers. Also disclosed is a method of manufacturing the display apparatus.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: May 29, 2007
    Assignee: Sony Corporation
    Inventors: Chiyoko Sato, Jiro Yamada, Takashi Hirano, Seiichi Yokoyama
  • Patent number: 7218049
    Abstract: In an organic EL device having a first electrode of a light reflective material, organic layer including an organic light emitting layer, semitransparent reflection layer, and second electrode of a transparent material that are stacked sequentially, and so configured that the organic layer functions as a cavity portion of a cavity structure, light that resonates in a certain spectral width (wavelength ?) is extracted by so configuring that optical path length L becomes minimum in a range satisfying (2L)/?+?((2?)=m (m is an integer) where the phase shift produced in light generated in the organic light emitting layer when reflected by opposite ends of the cavity portion is ? radians, L is optical path length of the cavity portion, and ? is the peak wavelength of the spectrum of part of light to be extracted.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: May 15, 2007
    Assignee: Sony Corporation
    Inventors: Jiro Yamada, Tatsuya Sasaoka, Takashi Hirano
  • Publication number: 20070102737
    Abstract: A display unit capable of being simply designed and manufactured by using more simplified light emitting device structure while capable of high definition display and display with superior color reproducibility and a manufacturing method thereof are provided. The display unit is a display unit (1), wherein a plurality of organic EL devices (3B), (3G), and (3R), in which a function layer (6) including a light emitting layer (11) is sandwiched between a lower electrode (4) made of a light reflective material and a semi-transmissive upper electrode (7), and which has a resonator structure in which light h emitted in the light emitting layer (11) is resonated using a space between the lower electrode (4) and the upper electrode (7) as a resonant section (15) and is extracted from the upper electrode (7) side are arranged on a substrate (2).
    Type: Application
    Filed: September 17, 2004
    Publication date: May 10, 2007
    Inventors: Mitsuhiro Kashiwabara, Jiro Yamada, Seiichi Yokoyama, Kohji Hanawa
  • Patent number: 7161295
    Abstract: A top-emitting display unit is fabricated by the following steps: A lower electrode is formed on a substrate. An organic layer including a luminescent sublayer is formed on the lower electrode. Furthermore, an upper electrode containing lithium is formed by a sputtering process into a thickness of 7 nm to 21 nm. The upper electrode functions as a cathode. The lithium content in the upper electrode is in the range of 0.3 to 1.9 percent by weight. In the sputtering process, the upper electrode is preferably formed at a deposition rate of 50 nm/min or less.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: January 9, 2007
    Assignee: Sony Corporation
    Inventors: Takanori Shibasaki, Takashi Hirano, Takao Mori, Jiro Yamada
  • Patent number: 7126269
    Abstract: A self-light-emitting type organic electroluminescence device which makes it possible to restrain to the utmost the absorption of light in an electrode layer, to efficiently take out the light and thereby to obtain sufficient luminance efficiency and the like, in the case of emitting the light through the electrode layer. In an organic electroluminescence device comprising a light-emitting layer (3) comprised of an organic material based the light-emitting layer (3) being sandwiched between a first electrode (2) and a second electrode (4), and light emitted from the light-emitting layer (3) being taken out to at least one of the side of the first electrode (2) and the side of the second electrode (4), the light absorbance of the electrode or electrodes on the side of taking out the light, of the first electrode (2) and the second electrode (4), is not more than 10%.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: October 24, 2006
    Assignee: Sony Corporation
    Inventor: Jiro Yamada
  • Publication number: 20060214579
    Abstract: Provided is a display apparatus which can easily bond a drive panel (10) and a sealing panel (20) together. The drive panel (10) includes organic electroluminescence devices (10R), (10G) and (10B) on a substrate for drive (11) and extracts light from the side of the organic electroluminescence devices (10R), (10G) and (10B). The sealing panel (20) includes a color filter (22) on a substrate for sealing (21). The drive panel (10) and the sealing panel (20) are disposed to face each other, and the whole facing surfaces of the drive panel (10) and the sealing panel (20) are bonded together with an adhesive layer (30). The adhesive layer (30) is cured with at least heat, and is made of only one coating liquid or a combination of two or more coating liquids for curing. A temporary fixing portion (30A) is formed in an edge portion of the adhesive layer (30).
    Type: Application
    Filed: May 26, 2006
    Publication date: September 28, 2006
    Inventors: Yuichi Iwase, Yasunori Kijima, Jiro Yamada
  • Patent number: 7102282
    Abstract: In an organic EL device having a first electrode of a light reflective material, organic layer including an organic light emitting layer, semitransparent reflection layer, and second electrode of a transparent material that are stacked sequentially, and so configured that the organic layer functions as a cavity portion of a cavity structure, light that resonates in a certain spectral width (wavelength ?) is extracted by so configuring that optical path length L becomes minimum in a range satisfying (2L)/?+?(2?)=m (m is an integer) where the phase shift produced in light generated in the organic light emitting layer when reflected by opposite ends of the cavity portion is ? radians, L is optical path length of the cavity portion, and ? is the peak wavelength of the spectrum of part of light to be extracted.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: September 5, 2006
    Assignee: Sony Corporation
    Inventors: Jiro Yamada, Tatsuya Sasaoka, Takashi Hirano
  • Publication number: 20060175966
    Abstract: In an organic EL device having a first electrode of a light reflective material, organic layer including an organic light emitting layer, semitransparent reflection layer, and second electrode of a transparent material that are stacked sequentially, and so configured that the organic layer functions as a cavity portion of a cavity structure, light that resonates in a certain spectral width (wavelength ?) is extracted by so configuring that optical path length L becomes minimum in a range satisfying (2L)/?+?((2?)=m (m is an integer) where the phase shift produced in light generated in the organic light emitting layer when reflected by opposite ends of the cavity portion is ? radians, L is optical path length of the cavity portion, and ? is the peak wavelength of the spectrum of part of light to be extracted.
    Type: Application
    Filed: April 19, 2006
    Publication date: August 10, 2006
    Inventors: Jiro Yamada, Tatsuya Sasaoka, Takashi Hirano
  • Patent number: 7071619
    Abstract: Provided is a display apparatus which can easily bond a drive panel (10) and a sealing panel (20) together. The drive panel (10) includes organic electroluminescence devices (10R), (10G) and (10B) on a substrate for drive (11) and extracts light from the side of the organic electroluminescence devices (10R), (10G) and (10B). The sealing panel (20) includes a color filter (22) on a substrate for sealing (21). The drive panel (10) and the sealing panel (20) are disposed to face each other, and the whole facing surfaces of the drive panel (10) and the sealing panel (20) are bonded together with an adhesive layer (30). The adhesive layer (30) is cured with at least heat, and is made of only one coating liquid or a combination of two or more coating liquids for curing. A temporary fixing portion (30A) is formed in an edge portion of the adhesive layer (30).
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: July 4, 2006
    Assignee: Sony Corporation
    Inventors: Yuichi Iwase, Yasunori Kijima, Jiro Yamada
  • Patent number: 7045949
    Abstract: A display unit has R, G, and B light-emitting pixels arranged in a predetermined sequence. The R pixels and the B pixels each have a G-light-absorbing filter at the image display side (light output side or external-light incident side) thereof. The G pixels have no filters. The R and B light-emitting pixels each have a composite structure including a reflective layer, an organic EL layer, and a translucent reflective layer. The translucent reflective layer and the reflective layer constitute an optical resonator that causes multiple interference of light. The transmittance of the G-light-absorbing filter is minimized at the G wavelength, at which the sensitivity of the naked eye is high, and maximized at the R and B wavelengths. Furthermore, the external light reflectance of each pixel is minimized at the G wavelength. This display unit significantly suppresses a decrease in contrast caused by external light without a decrease in luminance of an image.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: May 16, 2006
    Assignee: Sony Corporation
    Inventors: Jiro Yamada, Yuichi Iwase
  • Patent number: 7046607
    Abstract: In a multimedia copy control system, digital contents data stored in the digital data recording medium includes a first copy control information of a digital format and a second copy control information of an analog embedded format, and encryption of the reproduction output data from the recording medium is decrypted and judged for each digital contents unit under reproduction, and even in the case of detecting no first copy control information, the reproduction of the digital contents data is controlled based on the second copy control information.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: May 16, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Jiro Yamada
  • Patent number: 6991506
    Abstract: An active-matrix-type display apparatus ensuring sufficient luminous intensity of display devices within a display plane and allowing improved display properties is provided. Such display apparatus having of a plurality of pixels comprises a lower electrode formed on a substrate; organic layers formed on the lower electrode; and an upper common electrode formed on the organic layers; in which a plurality of the pixels are partitioned by a rib larger in the thickness than the organic layers and having at least a conductive material layer; and the conductive material layer is electrically connected to the upper common electrode.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: January 31, 2006
    Assignee: Sony Corporation
    Inventors: Jiro Yamada, Tatsuya Sasaoka, Mitsunobu Sekiya, Naoki Sano, Yasuhiro Chiba, Takashi Hirano, Yuichi Iwase
  • Patent number: 6993214
    Abstract: The invention provides a light emitting device which can prevent irregular color by reducing film thickness distribution and a display unit using it. A first electrode, an organic layer including a light emitting layer, a second electrode including a semi-transparent electrode are sequentially layered on a driving substrate. The light emitting layer has a red light emitting layer, a green light emitting layer, and a blue light emitting layer. The light emitting layer is formed by transferring a raw solution by every color, and then removing the solvent. An optical distance between a first end of the first electrode and a second end of the second electrode satisfies (2L)/?+?/(2?)=m. ? represents a peak wavelength of a spectrum of a light desired to be extracted, ? represents a phase shift of reflected lights generated in the first end and the second end, and m represents an integer.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: January 31, 2006
    Assignee: Sony Corporation
    Inventors: Teiichiro Nishimura, Masao Nishiguchi, Keiichi Kagami, Jiro Yamada
  • Patent number: 6971938
    Abstract: The invention provides a display of a type of getting light out of a second electrode side, capable of increasing contrast by suppressing external light reflection, simplifying a manufacturing process, and reducing cost, and a method of manufacturing the same. A substrate for driving is provided with organic electroluminescence (EL) devices for getting light out of a cathode side. A red filter, a green filter, and a blue filter are formed on a substrate for sealing by printing so as to face the organic EL devices. By overlapping at least two filters out of the red, green, and blue filters by printing, a black matrix is formed so as to face the boundary region of the organic EL devices, so that external light reflection by a wiring electrode between the devices is suppressed.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: December 6, 2005
    Assignee: Sony Corporation
    Inventors: Tetsuo Urabe, Jiro Yamada, Tatsuya Sasaoka
  • Publication number: 20050264181
    Abstract: A top-emitting display unit is fabricated by the following steps: A lower electrode is formed on a substrate. An organic layer including a luminescent sublayer is formed on the lower electrode. Furthermore, an upper electrode containing lithium is formed by a sputtering process into a thickness of 7 nm to 21 nm. The upper electrode functions as a cathode. The lithium content in the upper electrode is in the range of 0.3 to 1.9 percent by weight. In the sputtering process, the upper electrode is preferably formed at a deposition rate of 50 nm/min or less.
    Type: Application
    Filed: July 7, 2005
    Publication date: December 1, 2005
    Inventors: Takanori Shibasaki, Takashi Hirano, Takao Mori, Jiro Yamada
  • Patent number: 6969948
    Abstract: The invention provides a display of a type of getting light out of a second electrode side, capable of increasing contrast by suppressing external light reflection, simplifying a manufacturing process, and reducing cost, and a method of manufacturing the same. A substrate for driving is provided with organic electroluminescence (EL) devices for getting light out of a cathode side. A red filter, a green filter, and a blue filter are formed on a substrate for sealing by printing so as to face the organic EL devices. By overlapping at least two filters out of the red, green, and blue filters by printing, a black matrix is formed so as to face the boundary region of the organic EL devices, so that external light reflection by a wiring electrode between the devices is suppressed.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: November 29, 2005
    Assignee: Sony Corporation
    Inventors: Tetsuo Urabe, Jiro Yamada, Tatsuya Sasaoka
  • Patent number: 6942534
    Abstract: A top-emitting display unit is fabricated by the following steps: A lower electrode is formed on a substrate. An organic layer including a luminescent sublayer is formed on the lower electrode. Furthermore, an upper electrode containing lithium is formed by a sputtering process into a thickness of 7 nm to 21 nm. The upper electrode functions as a cathode. The lithium content in the upper electrode is in the range of 0.3 to 1.9 percent by weight. In the sputtering process, the upper electrode is preferably formed at a deposition rate of 50 nm/min or less.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: September 13, 2005
    Assignee: Sony Corporation
    Inventors: Takanori Shibasaki, Takashi Hirano, Takao Mori, Jiro Yamada
  • Patent number: 6931200
    Abstract: The present invention provides optical disc playback apparatus (DVD-Universal players) which can play back all ATSs and VTSs.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: August 16, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Jiro Yamada, Masato Negishi
  • Publication number: 20050111820
    Abstract: It has been difficult to replay data in a manner which better suits a user's intention. A recording/replaying system comprises a recording medium 15 on which a plurality of data pieces are recorded, write file managing means 11 which records on the recording medium 15 one or multiple lists which are for selecting predetermined data pieces from among the plurality of recorded data pieces and specifying thus selected determined data pieces, file recording means 14, control means 21 which replays the predetermined data pieces specified by the lists based on thus recorded one or multiple lists, the file replaying means 23, and the data file outputting means 24.
    Type: Application
    Filed: November 9, 2004
    Publication date: May 26, 2005
    Inventors: Chiyoko Matsumi, Nobuyasu Takeguchi, Harutoshi Miyamoto, Yoshifumi Yanagawa, Tetsuya Itani, Jiro Yamada, Yasuyuki Torii