Patents by Inventor Kiyoshige Kinugawa
Kiyoshige Kinugawa 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).
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Patent number: 9324259Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.Type: GrantFiled: March 24, 2015Date of Patent: April 26, 2016Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Hajime Akimoto, Yoshirou Mikami, Kiyoshige Kinugawa, Shigeyuki Nishitani, Takeo Shiba
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Patent number: 9324260Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.Type: GrantFiled: March 24, 2015Date of Patent: April 26, 2016Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Hajime Akimoto, Yoshirou Mikami, Kiyoshige Kinugawa, Shigeyuki Nishitani, Takeo Shiba
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Publication number: 20150199931Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.Type: ApplicationFiled: March 24, 2015Publication date: July 16, 2015Inventors: Hajime AKIMOTO, Yoshihiro MIKAMI, Kiyoshige KINUGAWA, Shigeyuki NISHITANI, Takeo SHIBA
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Publication number: 20150199933Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.Type: ApplicationFiled: March 24, 2015Publication date: July 16, 2015Inventors: Hajime AKIMOTO, Yoshihiro MIKAMI, Kiyoshige KINUGAWA, Shigeyuki NISHITANI, Takeo SHIBA
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Patent number: 9035978Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.Type: GrantFiled: January 28, 2014Date of Patent: May 19, 2015Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Hajime Akimoto, Yoshihiro Mikami, Kiyoshige Kinugawa, Shigeyuki Nishitani, Takeo Shiba
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Publication number: 20140139564Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.Type: ApplicationFiled: January 28, 2014Publication date: May 22, 2014Applicants: Panasonic Liquid Crystal Display Co., Ltd., Japan Display Inc.Inventors: Hajime AKIMOTO, Yoshirou MIKAMI, Kiyoshige KINUGAWA, Shigeyuki NISHITANI, Takeo SHIBA
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Patent number: 8730281Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.Type: GrantFiled: July 15, 2013Date of Patent: May 20, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Hajime Akimoto, Yoshirou Mikami, Kiyoshige Kinugawa, Shigeyuki Nishitani, Takeo Shiba
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Publication number: 20130293601Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.Type: ApplicationFiled: July 15, 2013Publication date: November 7, 2013Applicants: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Displays, Ltd.Inventors: Hajime AKIMOTO, Yoshirou MIKAMI, Kiyoshige KINUGAWA, Shigeyuki NISHITANI, Takeo SHIBA
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Patent number: 8508562Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.Type: GrantFiled: December 19, 2011Date of Patent: August 13, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Hajime Akimoto, Yoshirou Mikami, Kiyoshige Kinugawa, Shigeyuki Nishitani, Takeo Shiba
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Publication number: 20120086739Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.Type: ApplicationFiled: December 19, 2011Publication date: April 12, 2012Applicants: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Displays, Ltd.Inventors: Hajime Akimoto, Yoshirou Mikami, Kiyoshige Kinugawa, Shigeyuki Nishitani, Takeo Shiba
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Patent number: 8102387Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.Type: GrantFiled: December 10, 2008Date of Patent: January 24, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Hajime Akimoto, Yoshirou Mikami, Kiyoshige Kinugawa, Shigeyuki Nishitani, Takeo Shiba
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Patent number: 8089428Abstract: In an image display apparatus using an FED or an organic EL element, image display that is high in illumination uniformity and high in image quality can be performed. A display element with a matrix structure which conducts linear sequential driving which determines the luminance by a current is used, a threshold voltage of a cathode line immediately before one select period has been terminated where a control electrode line is sequentially driven is measured by a threshold voltage measuring section, the measured threshold voltage is recorded for each of the pixels, and a driving signal at the time of selecting the pixel is corrected by using the value of the recorded threshold voltage, to thereby control electric charge that is emitted from a cathode.Type: GrantFiled: October 24, 2006Date of Patent: January 3, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tomio Yaguchi, Kiyoshige Kinugawa, Shigeyuki Nishitani, Takahiko Muneyoshi, Susumu Sasaki, Shoichi Uchino, Akiko Iwata, Makoto Okai, Tetsuya Yamazaki, Nobuaki Hayashi
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Patent number: 7714507Abstract: The recent invention provide an organic electroluminescence display device with color purity adjustment, particularly white purity increased, without increasing formation processes. For each of unit pixels formed on an insulating film INS formed on a principal surface of a glass substrate, a bank BNK is provided on a bottom electrode BEL being a pixel electrode. The bank BNK has the shape of a bank that surrounds a pixel concerned, for each of pixels, and an organic electroluminescence light emitting layer is charged within a region surrounded by the banks BNKs. Between the banks BNKs, a green light emitting layer (G light emitting layer), a blue light emitting layer (B light emitting layer), and a red light emitting layer (R light emitting layer) are provided.Type: GrantFiled: February 27, 2007Date of Patent: May 11, 2010Assignee: Hitachi Displays, Ltd.Inventors: Kazuhiko Kai, Kiyoshige Kinugawa, Masato Ito
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Publication number: 20090102761Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.Type: ApplicationFiled: December 10, 2008Publication date: April 23, 2009Inventors: Hajime Akimoto, Yoshirou Mikami, Kiyoshige Kinugawa, Shigeyuki Nishitani, Takeo Shiba
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Patent number: 7518577Abstract: An image display device which has a stable luminous brightness among pixels. An on/off control switch 15 for stopping the driving operation of a light emitting element 13 is provided in a pixel 1. A change in the luminous brightness caused by a variation in the characteristic of the light emitting element 13 is suppressed by feeding a result measured by a current measuring circuit provided in one end of a power line 4 back to a drive signal for the light emitting element 13.Type: GrantFiled: July 20, 2004Date of Patent: April 14, 2009Assignee: Hitachi Displays, Ltd.Inventors: Hajime Akimoto, Kiyoshige Kinugawa, Nobuaki Hayashi
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Patent number: 7468715Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.Type: GrantFiled: August 5, 2005Date of Patent: December 23, 2008Assignee: Hitachi, Ltd.Inventors: Hajime Akimoto, Yoshirou Mikami, Kiyoshige Kinugawa, Shigeyuki Nishitani, Takeo Shiba
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Patent number: 7436376Abstract: The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.Type: GrantFiled: January 26, 2005Date of Patent: October 14, 2008Assignee: Hitachi, Ltd.Inventors: Hajime Akimoto, Yoshirou Mikami, Kiyoshige Kinugawa, Shigeyuki Nishitani, Takeo Shiba
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Patent number: 7286105Abstract: The present invention provides an image display capable of performing high-precision multi-gradation display while avoiding problems of a subtle noise and increase in a drive frequency. Display signal data of one frame is constructed by a plurality of sub frames of, for example, four sub frames 1/4 to 4/4. The 1/4 frame is set as an address period of an analog signal, the 2/4 frame is set as an analog gradation display period, the 3/4 frame is set as an address period of a digital signal, and the 4/4 frame is set as a digital gradation light emission period.Type: GrantFiled: January 10, 2003Date of Patent: October 23, 2007Assignee: Hitachi, Ltd.Inventors: Hajime Akimoto, Kiyoshige Kinugawa
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Publication number: 20070200495Abstract: The recent invention provide an organic electroluminescence display device with color purity adjustment, particularly white purity increased, without increasing formation processes. For each of unit pixels formed on an insulating film INS formed on a principal surface of a glass substrate, a bank BNK is provided on a bottom electrode BEL being a pixel electrode. The bank BNK has the shape of a bank that surrounds a pixel concerned, for each of pixels, and an organic electroluminescence light emitting layer is charged within a region surrounded by the banks BNKs. Between the banks BNKs, a green light emitting layer (G light emitting layer), a blue light emitting layer (B light emitting layer), and a red light emitting layer (R light emitting layer) are provided.Type: ApplicationFiled: February 27, 2007Publication date: August 30, 2007Inventors: Kazuhiko Kai, Kiyoshige Kinugawa, Masato Ito
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Patent number: 7262755Abstract: A multi-tone display matrix display device including a matrix display panel having a matrix having plural X and Y direction signal lines lying at right angles to each other, intersecting points on the matrix being pixels of an image, an X direction driving section for sequentially scanning X direction signal lines to provide image signals, a Y direction driving section for driving the Y direction signal lines in synchronism with the scanning of the X direction signal lines to sequentially provide select signals to the Y direction signal lines, an A-D converter section for converting an analog signal into a digital signal, a voltage generating section for generating signals at plural voltage levels, and a selector section for selecting an output signal from the voltage generating section based on the output from A-D converter section and providing to output to the X direction driving section as an image signal.Type: GrantFiled: March 24, 2005Date of Patent: August 28, 2007Assignee: Hitachi, Ltd.Inventors: Hiroyuki Mano, Kiyokazu Nishioka, Toshio Futami, Kiyoshige Kinugawa