Patents by Inventor Ryuji Nishikawa

Ryuji Nishikawa 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: 8143779
    Abstract: A system for displaying images is provided. The system includes a tandem electroluminescent device having a first electrode. N electroluminescent units are disposed on the first electrode in sequence, wherein N is an integral and not less than 2. A second electrode is disposed on the Nth electroluminescent unit. N?1 interconnecting electrodes are provided, wherein each of the interconnecting electrodes is disposed between two adjacent electroluminescent units. The first electroluminescent unit includes a first emitting layer and a second emitting layer in sequence from the first electrode, and the first and second emitting layer have different physical quantities. The Nth electroluminescent unit includes a third emitting layer and a fourth emitting layer in sequence from the first electrode. The physical quantity of the third emitting layer is the same as that of the second emitting layer. The physical quantity of the fourth emitting layer is the same as that of the first emitting layer.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: March 27, 2012
    Assignee: Chimei Innolux Corporation
    Inventors: Ryuji Nishikawa, Hsiang-Lun Hsu
  • Publication number: 20120056208
    Abstract: A system for displaying images includes an organic light-emitting device (OLED) including an anode layer on a substrate, a cathode layer, and an organic light-emitting layer disposed between the anode and cathode layers. The cathode layer includes a metal layer in direct contact with the organic light-emitting layer, a transparent conductive layer, and an organic buffer layer with a carrier mobility in a range of 10?3 cm2/(V·s) to 10?5 cm2/(V·s) disposed between the metal layer and the transparent conductive layer.
    Type: Application
    Filed: April 7, 2011
    Publication date: March 8, 2012
    Applicant: CHIMEI INNOLUX CORPORATION
    Inventors: Ryuji NISHIKAWA, Hsiang-Lun HSU
  • Patent number: 8129712
    Abstract: Each pixel includes a region where a lower reflection film is not present. In each pixel, there is a region where a microcavity structure is formed between a counter electrode and a lower reflection film and another region where the microcavity structure is not formed. The regions differentiated in cavity length can differently enhance the peak wavelength so as to improve the viewing angle dependence. Furthermore, in each of R, G, and B light emitting pixels, the area ratio of a region where the microcavity structure is present and another region where the microcavity structure is not present can be adjusted so as to eliminate the differences caused by the microcavity structure.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: March 6, 2012
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Ryuji Nishikawa, Tetsuji Omura, Masaya Nakai
  • Patent number: 8115381
    Abstract: This invention provides a top-emission active matrix electroluminescent device including a substrate and a plurality of pixel areas formed within a display area of the substrate. Each of the pixel areas includes at least one sub-pixel area comprising at least, from top to bottom: a first conductive electrode layer, an electroluminescent layer, a second conductive electrode layer, a first reflective layer region, and a second reflective layer region. The first reflective layer region and second reflective layer region overlap each other in part. Some of the light rays emitted from the electroluminescent layer are reflected by the first reflective layer region and second reflective layer region, respectively, and are then directed upwards. The reflected light rays compensate the top-emitting light rays also emitted from the electroluminescent layer, reducing color shifts at different viewing angles due to the micro-cavity effect.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: February 14, 2012
    Assignee: Chimei Innolux Corporation
    Inventors: Chuan-Yi Chan, Du-Zen Peng, Ryuji Nishikawa
  • Publication number: 20110227963
    Abstract: A system for displaying images employing a pixel structure. The pixel structure includes a first sub-pixel, a second sub-pixel, a third sub-pixel, and a filling layer. Particularly, each sub-pixel includes a color filter layer, and an electroluminescent element corresponding to the color filter layer. The transmittances of the color filter layers of the first sub-pixel, the second sub-pixel, and third sub-pixel, for a radiance level used for curing the filling layer, are determined according to the following equation: transmittance of the color filter layer of the first sub-pixel>transmittance of the color filter layer of the second sub-pixel>transmittance of the color filter layer of the third sub-pixel. Further, the distance between the first and second sub-pixels is greater than that between the first and third sub-pixels.
    Type: Application
    Filed: March 14, 2011
    Publication date: September 22, 2011
    Applicant: CHIMEI INNOLUX CORPORATION
    Inventors: Po-Kun Su, Ryuji Nishikawa
  • Publication number: 20110186823
    Abstract: A system for displaying images is provided. The system includes a full-color organic electroluminescent device having an anode. A first emitting layer and a second emitting layer are sequentially disposed on the anode. A cathode is disposed on the second emitting layer. The first and second emitting layers include, respectively, a first dopant and a second dopant, wherein the energy gap of the first dopant is different from that of the second dopant.
    Type: Application
    Filed: January 12, 2011
    Publication date: August 4, 2011
    Applicant: CHIMEI INNOLUX CORPORATION
    Inventors: Jui-Hsiang Yen, Hsiang-Lun Hsu, Ryuji Nishikawa
  • Patent number: 7903055
    Abstract: Disclosed is a light-emitting display having a plurality of pixels wherein each pixel comprises a light-emitting device (100) having a light-emitting element layer which is formed between a first electrode and a second electrode and contains at least a light-emitting layer. An insulating layer (30) is formed between the light-emitting device (100) and a surface of a first or second substrate on the viewing side of the display, and the insulating layer (30) is provided with recesses and projections in at least one or more pixel regions, thereby forming an optical path length adjusting portion (32). By forming such an optical path length adjusting portion (32) in a pixel region, there is an increase in the interference conditions for the light emitted from the light-emitting device (100) to the outside, thereby averaging the interference.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: March 8, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Ryuji Nishikawa, Tetsuji Omura
  • Patent number: 7872412
    Abstract: An organic electroluminescent device is provided. The organic electroluminescent device includes an array substrate having a white sub-pixel region and an organic electro-luminescent multi-layer structure is disposed on the white sub-pixel region of the array substrate. The organic electro-luminescent multi-layer structure comprises a bottom electrode. The bottom electrode has a thinner first portion and a thicker second portion for providing a wavelength shift of light in different directions.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: January 18, 2011
    Assignee: TPO Displays Corp.
    Inventors: Chuan-Yi Chan, Du-Zen Peng, Ryuji Nishikawa
  • Publication number: 20100328282
    Abstract: An image display system comprising a display panel is disclosed. The display panel, having a display region and a non-display region adjacent thereto, includes an upper substrate, a lower substrate opposing to the upper substrate, a plurality of organic light-emitting diodes on the lower substrate, and a filling layer. The upper substrate includes a light transmittable layer within the non-display region of the upper substrate, and the light transmittable layer has a transmittance at a specific wavelength of light. The filling layer including a light curable material is disposed between the upper and lower substrates, covering the display region and the non-display region of the lower substrate. The light curable material is cured by absorption of the specific wavelength of light.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 30, 2010
    Applicant: CHIMEI INNOLUX CORPORATION
    Inventors: Po-Kun SU, Ryuji Nishikawa
  • Publication number: 20100320447
    Abstract: An organic electroluminescence device manufacturing method and an image display system having the organic electroluminescence device are provided. The manufacturing method includes the steps of providing a substrate, forming a first electrode on the substrate, forming an organic layer having a plurality of crystals on the first electrode, and forming a second electrode on the organic layer. Each of the crystals comprises a particle.
    Type: Application
    Filed: May 12, 2010
    Publication date: December 23, 2010
    Inventors: Eng Jay Chen, Ryuji Nishikawa
  • Publication number: 20100302483
    Abstract: A system for displaying images is provided. The system includes a reflective liquid crystal display device including a first substrate having a pixel unit array thereon. A second substrate is disposed above the first substrate and a liquid crystal layer is disposed therebetween. A plurality of first electrodes is disposed between the second substrate and the liquid crystal layer and corresponds to each pixel unit including a reflective electrode. A second electrode is disposed between the plurality of first electrodes and the liquid crystal layer to serve as a common electrode that controls the liquid crystal layer. An organic light-emissive layer is disposed between the plurality of first electrodes and the second electrode. A light-emitting device is constituted by the plurality of first electrodes, the second electrode, and the organic light-emissive layer to provide light onto the reflective electrode.
    Type: Application
    Filed: May 20, 2010
    Publication date: December 2, 2010
    Applicant: CHIMEI INNOLUX CORPORATION
    Inventors: Du-Zen Peng, Ryuji Nishikawa
  • Publication number: 20100302231
    Abstract: A system for displaying images is provided. The system includes a self-emission type display device including an organic light-emitting device interposed between a first substrate and a second substrate, a driving chip, and a thermal conductive layer. The first substrate has a pixel region and a peripheral circuit region. The second substrate is disposed above the first substrate and located at the pixel region. The driving chip is disposed on the first substrate and located at the peripheral circuit region, having a temperature sensor to detect the temperature of the organic light-emitting device. The thermal conductive layer is disposed on the bottom surface of the first substrate that corresponds to the organic light-emitting device and the driving chip.
    Type: Application
    Filed: May 20, 2010
    Publication date: December 2, 2010
    Applicant: CHIMEI INNOLUX CORPORATION
    Inventors: Du-Zen Peng, Ryuji Nishikawa
  • Publication number: 20100302614
    Abstract: A system for displaying images is provided. The system includes a display device including a first substrate having a pixel unit array thereon. A second substrate is disposed above the first substrate. A plurality of micro-electro-mechanical system shutters is disposed between the first substrate and the second substrate and corresponds to each pixel unit of the pixel unit array. An organic light-emitting device is disposed between the second substrate and the plurality of micro-electro-mechanical system shutters to serve as a light source of the display device. A system for displaying images including a display device with an electrophoretic display layer is also disclosed.
    Type: Application
    Filed: May 20, 2010
    Publication date: December 2, 2010
    Applicant: CHIMEI INNOLUX CORPORATION
    Inventors: Du-Zen Peng, Ryuji Nishikawa
  • Patent number: 7839084
    Abstract: A light-emitting device may include a light-emitting element, a microresonator, and a color filter. The light-emitting element may include first and second electrode and an emissive layer provided between the first and second electrodes, and may emit light of a predetermined color when a voltage is applied between the first and second electrodes to allow a current to flow in the emissive layer. The microresonator may repetitively reflect light of a predetermined color emitted from the emissive layer within an interval having an optical length corresponding to the predetermined color, and thereby intensifying and selecting the light of the predetermined color. The color filter may pass the light intensified and selected by the microresonator and further limiting to light having a wavelength of the predetermined color.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: November 23, 2010
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Ryuji Nishikawa, Tetsuii Omura
  • Publication number: 20100264433
    Abstract: A system for displaying images is provided. The system includes a tandem electroluminescent device having a first electrode. N electroluminescent units are disposed on the first electrode in sequence, wherein N is an integral and not less than 2. A second electrode is disposed on the Nth electroluminescent unit. N-1interconnecting electrodes are provided, wherein each of the interconnecting electrodes is disposed between two adjacent electroluminescent units. The first electroluminescent unit includes a first emitting layer and a second emitting layer in sequence from the first electrode, and the first and second emitting layer have different physical quantities. The Nth electroluminescent unit includes a third emitting layer and a fourth emitting layer in sequence from the first electrode. The physical quantity of the third emitting layer is the same as that of the second emitting layer. The physical quantity of the fourth emitting layer is the same as that of the first emitting layer.
    Type: Application
    Filed: April 15, 2010
    Publication date: October 21, 2010
    Applicant: CHIMEI INNOLUX CORPORATION
    Inventors: Ryuji Nishikawa, Hsiang-Lun Hsu
  • Publication number: 20100207878
    Abstract: The invention provides an illumination device, method for fabricating the same, and system for displaying images utilizing the same. The illumination device includes a substrate, a first electrode, an illumination layer, and a second electrode. The substrate has a plurality of illumination regions. The first electrode overlies the substrate and has a first bump disposed in a first illumination region of the plurality of the illumination regions. The illumination layer overlies the first electrode. The second electrode overlies the illumination layer.
    Type: Application
    Filed: February 11, 2010
    Publication date: August 19, 2010
    Applicant: TPO Displays Corp.
    Inventors: Ryuji Nishikawa, Hsiang-Lun Hsu, Po-Kun Su, Du-Zen Peng
  • Publication number: 20100157453
    Abstract: A display device and an electrical apparatus are disclosed. The display device comprises a first substrate, an optical enhance layer, a display layer, a first electrode and a second electrode. The first substrate includes a plurality of pixel areas. The optical enhance layer is formed on the first substrate and includes a plurality of even structures and a plurality of uneven structures, wherein for each pixel area, one of the even structures corresponds to a portion of the pixel area, and one of the uneven structures corresponds to the rest portion of the pixel area. The first electrode is formed on the optical enhance layer. The display layer is formed on the first electrode. The second electrode is formed on the display layer. The display device is applicable to the electrical apparatus.
    Type: Application
    Filed: December 8, 2009
    Publication date: June 24, 2010
    Applicant: TPO DISPLAYS CORP.
    Inventors: Po-kun Su, Ryuji Nishikawa
  • Publication number: 20100133998
    Abstract: A display device including a display panel is provided, including a substrate having a luminance region and a none-luminance region thereover. An interlayer dielectric layer is disposed over the substrate. A reflection layer is disposed over the interlayer dielectric layer in the luminance region. A planarization layer is disposed over the reflection layer, having a rugged top surface corresponding to the reflection layer. A first electrode is disposed over the planarization layer, having a rugged top surface corresponding to the reflection layer. A pixel defining layer is disposed over the planarization layer, exposing the rugged top surface of the first electrode and defining the luminance region. An electroluminescent layer and a second electrode are sequentially stacked over the first electrode.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 3, 2010
    Applicant: TPO Displays Corp.
    Inventors: Ryuji Nishikawa, Hsiang-Lun HSU
  • Publication number: 20100059780
    Abstract: A system for displaying images employing an organic electroluminescent device is provided. The organic electroluminescent device includes a first electrode, an organic electroluminescent element disposed on the first electrode, a second electrode disposed on the organic electroluminescent element, and a color tuning element disposed on the second electrode. In particular, the color tuning element has a thickness range T1: 3500 ??T1?4500 ?, 6500 ??T1?7500 ?, 9500 ??T1?10500 ?, 11000 ??T1?12000 ?, 13500 ??T1?14500 ?, 16500 ??T1?17500 ?, or 18500 ??T1?19500 ?.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 11, 2010
    Applicant: TPO DISPLAYS CORP.
    Inventors: Po-Kun SU, Jui-Hsiang YEN, Ryuji NISHIKAWA
  • Patent number: 7611745
    Abstract: The invention is directed to repairing of a defective portion caused by a short circuit without generating a dark spot by a pin hole. Laser beams are irradiated to an irradiating region set in a peripheral region of a foreign substance. This prevents damaging of an organic EL element which the foreign substance adheres to and formation of the pin hole. By irradiating laser beams to the peripheral region at a distance from the foreign substance, energy of the laser beams spreads concentrically around the irradiating region, and is also supplied to the foreign substance indirectly. Therefore, the high resistive region can be formed between an anode layer and a cathode layer so that the defective portion caused by the short circuit by the foreign substance can be repaired.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: November 3, 2009
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Ryuji Nishikawa, Ryozo Nagata, Takashi Ogawa