Patents by Inventor Katsuhiko Yarita
Katsuhiko Yarita 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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Publication number: 20090251387Abstract: Let a drive circuit chip shrink in outer shape size to thereby enable miniaturization of a display device as a whole. The display device is equipped with a plurality of pixels disposed on a substrate in the form of a matrix and more than one drive circuit chip GDR as mounted on the substrate for causing these pixels to perform a display operation, wherein the drive circuit chip GDR has a plurality of output terminals OT for connection to output wiring lines GL formed on the substrate and a plurality of dummy terminals DT disposed adjacent to one another, and wherein at least one of the output wiring lines GL connected to the output terminals OT is not connected to any one of the dummy terminals DT and is disposed to pass through between the mutually adjacent dummy terminals DT.Type: ApplicationFiled: June 10, 2009Publication date: October 8, 2009Inventors: Katsuhiko Yarita, Hiroyuki Takahashi
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Patent number: 7567231Abstract: A display device of the present invention has a drain driver mounted to a display substrate and having a gate driver and a controller therein, and also has a power source mounted to a flexible printed board and supplying a power voltage to the gate driver. The wiring of a common control signal outputted from the controller and commonly used in control of the gate driver and the power source is formed on the display substrate so that the number of pads for connecting the display substrate and the flexible printed board is reduced. Thus, the construction of the flexible printed board is simplified, and the entire display device can be made compact.Type: GrantFiled: May 12, 2005Date of Patent: July 28, 2009Assignee: Hitachi, Ltd.Inventors: Hiroyuki Takahashi, Katsuhiko Yarita
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Patent number: 7561132Abstract: Let a drive circuit chip shrink in outer shape size to thereby enable miniaturization of a display device as a whole. The display device is equipped with a plurality of pixels disposed on a substrate in the form of a matrix and more than one drive circuit chip GDR as mounted on the substrate for causing these pixels to perform a display operation, wherein the drive circuit chip GDR has a plurality of output terminals OT for connection to output wiring lines GL formed on the substrate and a plurality of dummy terminals DT disposed adjacent to one another, and wherein at least one of the output wiring lines GL connected to the output terminals OT is not connected to any one of the dummy terminals DT and is disposed to pass through between the mutually adjacent dummy terminals DT.Type: GrantFiled: August 16, 2005Date of Patent: July 14, 2009Assignee: Hitachi, Ltd.Inventors: Katsuhiko Yarita, Hiroyuki Takahashi
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Patent number: 7450210Abstract: There are disclosed various types of TFT active matrix liquid crystal display devices and method of fabrication thereof in which a pixel is divided into three parts, a capacitor is added to each pixel, light shielding is applied to each TFT, and the matrix is driven by a DC cancelling technique.Type: GrantFiled: August 1, 2006Date of Patent: November 11, 2008Assignee: Hitachi, Ltd.Inventors: Sakae Someya, Ryuuzoh Nashimoto, Hirofumi Suzuki, Katsuhiko Yarita, Shinji Matsumoto, Akira Sasano, Hideaki Taniguchi, Ryouji Oritsuki
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Patent number: 7196762Abstract: There are disclosed various types of TFT active matrix liquid crystal display devices and method of fabrication thereof in which a pixel is divided into three parts, a capacitor is added to each pixel, light shielding is applied to each TFT, and the matrix is driven by a DC cancelling technique.Type: GrantFiled: October 6, 2005Date of Patent: March 27, 2007Assignee: Hitachi, Ltd.Inventors: Sakae Someya, Ryuuzoh Nashimoto, Hirofumi Suzuki, Katsuhiko Yarita, Shinji Matsumoto, Akira Sasano, Hideaki Taniguchi, Ryouji Oritsuki
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Publication number: 20060268212Abstract: There are disclosed various types of TFT active matrix liquid crystal display devices and method of fabrication thereof in which a pixel is divided into three parts, a capacitor is added to each pixel, light shielding is applied to each TFT, and the matrix is driven by a DC cancelling technique.Type: ApplicationFiled: August 1, 2006Publication date: November 30, 2006Inventors: Sakae Someya, Ryuuzoh Nashimoto, Hirofumi Suzuki, Katsuhiko Yarita, Shinji Matsumoto, Akira Sasano, Hideaki Taniguchi, Ryouji Oritsuki
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Publication number: 20060028605Abstract: There are disclosed various types of TFT active matrix liquid crystal display devices and method of fabrication thereof in which a pixel is divided into three parts, a capacitor is added to each pixel, light shielding is applied to each TFT, and the matrix is driven by a DC cancelling technique.Type: ApplicationFiled: October 6, 2005Publication date: February 9, 2006Inventors: Sakae Someya, Ryuuzoh Nashimoto, Hirofumi Suzuki, Katsuhiko Yarita, Shinji Matsumoto, Akira Sasano, Hideaki Taniguchi, Ryouji Oritsuki
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Patent number: 6992744Abstract: There are disclosed various types of TFT active matrix liquid crystal display devices and method of fabrication thereof in which a pixel is divided into three parts, a capacitor is added to each pixel, light shielding is applied to each TFT, and the matrix is driven by a DC cancelling technique.Type: GrantFiled: November 15, 2004Date of Patent: January 31, 2006Assignee: Hitachi, Ltd.Inventors: Sakae Someya, Ryuuzoh Nashimoto, Hirofumi Suzuki, Katsuhiko Yarita, Shinji Matsumoto, Akira Sasano, Hideaki Taniguchi, Ryouji Oritsuki
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Publication number: 20050285833Abstract: Let a drive circuit chip shrink in outer shape size to thereby enable miniaturization of a display device as a whole. The display device is equipped with a plurality of pixels disposed on a substrate in the form of a matrix and more than one drive circuit chip GDR as mounted on the substrate for causing these pixels to perform a display operation, wherein the drive circuit chip GDR has a plurality of output terminals OT for connection to output wiring lines GL formed on the substrate and a plurality of dummy terminals DT disposed adjacent to one another, and wherein at least one of the output wiring lines GL connected to the output terminals OT is not connected to any one of the dummy terminals DT and is disposed to pass through between the mutually adjacent dummy terminals DT.Type: ApplicationFiled: August 16, 2005Publication date: December 29, 2005Inventors: Katsuhiko Yarita, Hiroyuki Takahashi
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Patent number: 6956548Abstract: Let a drive circuit chip shrink in outer shape size to thereby enable miniaturization of a display device as a whole. The display device is equipped with a plurality of pixels disposed on a substrate in the form of a matrix and more than one drive circuit chip GDR as mounted on the substrate for causing these pixels to perform a display operation, wherein the drive circuit chip GDR has a plurality of output terminals OT for connection to output wiring lines GL formed on the substrate and a plurality of dummy terminals DT disposed adjacent to one another, and wherein at least one of the output wiring lines GL connected to the output terminals OT is not connected to any one of the dummy terminals DT and is disposed to pass through between the mutually adjacent dummy terminals DT.Type: GrantFiled: August 29, 2002Date of Patent: October 18, 2005Assignee: Hitachi, Ltd.Inventors: Katsuhiko Yarita, Hiroyuki Takahashi
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Publication number: 20050205877Abstract: A display device of the present invention has a drain driver mounted to a display substrate and having a gate driver and a controller therein, and also has a power source mounted to a flexible printed board and supplying a power voltage to the gate driver. The wiring of a common control signal outputted from the controller and commonly used in control of the gate driver and the power source is formed on the display substrate so that the number of pads for connecting the display substrate and the flexible printed board is reduced. Thus, the construction of the flexible printed board is simplified, and the entire display device can be made compact.Type: ApplicationFiled: May 12, 2005Publication date: September 22, 2005Inventors: Hiroyuki Takahashi, Katsuhiko Yarita
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Patent number: 6903717Abstract: A display device of the present invention has a drain driver mounted to a display substrate and having a gate driver and a controller therein, and also has a power source mounted to a flexible printed board and supplying a power voltage to the gate driver. The wiring of a common control signal outputted from the controller and commonly used in control of the gate driver and the power source is formed on the display substrate so that the number of pads for connecting the display substrate and the flexible printed board is reduced. Thus, the construction of the flexible printed board is simplified, and the entire display device can be made compact.Type: GrantFiled: September 13, 2002Date of Patent: June 7, 2005Assignee: Hitachi, Ltd.Inventors: Hiroyuki Takahashi, Katsuhiko Yarita
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Publication number: 20050068485Abstract: There are disclosed various types of TFT active matrix liquid crystal display devices and method of fabrication thereof in which a pixel is divided into three parts, a capacitor is added to each pixel, light shielding is applied to each TFT, and the matrix is driven by a DC cancelling technique.Type: ApplicationFiled: November 15, 2004Publication date: March 31, 2005Inventors: Sakae Someya, Ryuuzoh Nashimoto, Hirofumi Suzuki, Katsuhiko Yarita, Shinji Matsumoto, Akira Sasano, Hideaki Taniguchi, Ryouji Oritsuki
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Patent number: 6839098Abstract: There are disclosed various types of TFT active matrix liquid crystal display devices and method of fabrication thereof in which a pixel is divided into three parts, a capacitor is added to each pixel, light shielding is applied to each TFT, and the matrix is driven by a DC cancelling technique.Type: GrantFiled: February 28, 2002Date of Patent: January 4, 2005Assignee: Hitachi, Ltd.Inventors: Sakae Someya, Ryuuzoh Nashimoto, Hirofumi Suzuki, Katsuhiko Yarita, Shinji Matsumoto, Akira Sasano, Hideaki Taniguchi, Ryouji Oritsuki
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Publication number: 20030063080Abstract: A display device of the present invention has a drain driver mounted to a display substrate and having a gate driver and a controller therein, and also has a power source mounted to a flexible printed board and supplying a power voltage to the gate driver. The wiring of a common control signal outputted from the controller and commonly used in control of the gate driver and the power source is formed on the display substrate so that the number of pads for connecting the display substrate and the flexible printed board is reduced. Thus, the construction of the flexible printed board is simplified, and the entire display device can be made compact.Type: ApplicationFiled: September 13, 2002Publication date: April 3, 2003Inventors: Hiroyuki Takahashi, Katsuhiko Yarita
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Patent number: RE40130Abstract: Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel and by arranging a video signal line driving circuit substrate to be connected with the terminals, only at one side of the display panel.Type: GrantFiled: April 29, 2004Date of Patent: March 4, 2008Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.Inventors: Kaoru Hasegawa, Yoshio Toriyama, Naoto Kobayashi, Katsuhiko Yarita, Hironori Kondo, Masahiko Suzuki, Yoshihiro Imajo
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Patent number: RE38516Abstract: Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel and by arranging a video signal line driving circuit substrate to be connected with the terminals, only at one side of the display panel. A liquid crystal display includes upper and lower casings for holding a liquid crystal display panel and substrates. The casings are provided with at least one of fixing pawls and recesses for receiving the fixing pawls so as to enable the connection of the casings.Type: GrantFiled: August 14, 2001Date of Patent: May 18, 2004Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.Inventors: Kaoru Hasegawa, Yoshio Toriyama, Naoto Kobayashi, Katsuhiko Yarita, Hironori Kondo, Masahiko Suzuki, Yoshihiro Imajo
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Patent number: RE41305Abstract: Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel and by arranging a video signal line driving circuit substrate to be connected with the terminals, only at one side of the display panel. A liquid crystal display device includes a liquid crystal display panel, a light guide plate, a fluorescent tube, and a lamp reflector. First and second lamp cables of different length are connected to the fluorescent tube.Type: GrantFiled: October 12, 2005Date of Patent: May 4, 2010Assignee: Hitachi Displays, Ltd.Inventors: Kaoru Hasegawa, Yoshio Toriyama, Naoto Kobayashi, Katsuhiko Yarita, Hironori Kondo, Masahiko Suzuki, Yoshihiro Imajo
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Patent number: RE41306Abstract: Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel and by arranging a video signal line driving circuit substrate to be connected with the terminals, only at one side of the display panel. A liquid crystal display device includes a liquid crystal display panel, a light guide plate, a fluorescent tube, and a lamp reflector. First and second lamp cables of different length are connected to the fluorescent tube.Type: GrantFiled: October 12, 2005Date of Patent: May 4, 2010Assignee: Hitachi Displays, Ltd.Inventors: Kaoru Hasegawa, Yoshio Toriyama, Naoto Kobayashi, Katsuhiko Yarita, Hironori Kondo, Masahiko Suzuki, Yoshihiro Imajo
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Patent number: RE41732Abstract: Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel and by arranging a video signal line driving circuit substrate to be connected with the terminals, only at one side of the display panel.Type: GrantFiled: October 31, 2007Date of Patent: September 21, 2010Assignee: Hitachi Displays, Ltd.Inventors: Koaru Hasegawa, Yoshio Toriyama, Naoto Kobayashi, Katsuhiko Yarita, Hironori Kondo, Masahiko Suzuki, Yoshihiro Imajo