Patents by Inventor Tomonobu Motai
Tomonobu Motai 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: 7737962Abstract: A display device, comprising: display elements formed in vicinity of intersections of signal lines and scan lines aligned vertically and horizontally; image pickup units provided corresponding to each of the display elements by at least one piece, each converting incident radiation at predetermined range into an electric signal; electric charge accumulators which accumulate the electric charge in accordance with the electric signal converted by the image pickup units; and signal processing unit which generates digital image data corresponding to image picked up by the image pickup unit, based on accumulated electric charge of the electric charge accumulator for each of a plurality of image pickup conditions.Type: GrantFiled: January 8, 2007Date of Patent: June 15, 2010Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Takashi Nakamura, Hirotaka Hayashi, Masahiro Yoshida, Tomonobu Motai
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Patent number: 7423622Abstract: A display device, comprising: signal lines and scanning lines arranged vertically and horizontally on an insulating substrate; display elements formed in vicinity of the signal lines and the scanning lines on said insulating substrate; a signal line drive circuit which drives the signal lines; and a scanning line drive circuit which drives the scanning lines, wherein said signal line drive circuit includes: a display data storage implemented on said insulating substrate, which stores ordinary display data supplied from outside; and a signal driver formed of polysilicon process on said insulating substrate, which drives the signal lines based on the ordinary display data stored in said display data storage.Type: GrantFiled: June 18, 2004Date of Patent: September 9, 2008Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventor: Tomonobu Motai
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Publication number: 20070109286Abstract: A display device, comprising: display elements formed in vicinity of intersections of signal lines and scan lines aligned vertically and horizontally; image pickup units provided corresponding to each of the display elements by at least one piece, each converting incident radiation at predetermined range into an electric signal; electric charge accumulators which accumulate the electric charge in accordance with the electric signal converted by the image pickup units; and signal processing unit which generates digital image data corresponding to image picked up by the image pickup unit, based on accumulated electric charge of the electric charge accumulator for each of a plurality of image pickup conditions.Type: ApplicationFiled: January 8, 2007Publication date: May 17, 2007Applicant: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Takashi Nakamura, Hirotaka Hayashi, Masahiro Yoshida, Tomonobu Motai
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Patent number: 7205988Abstract: A display device, comprising: display elements formed in vicinity of intersections of signal lines and scan lines aligned vertically and horizontally; image pickup units provided corresponding to each of the display elements by at least one piece, each converting incident radiation at predetermined range into an electric signal; electric charge accumulators which accumulate the electric charge in accordance with the electric signal converted by the image pickup units; and signal processing unit which generates digital image data corresponding to image picked up by the image pickup unit, based on accumulated electric charge of the electric charge accumulator for each of a plurality of image pickup conditions.Type: GrantFiled: July 11, 2003Date of Patent: April 17, 2007Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Takashi Nakamura, Hirotaka Hayashi, Masahiro Yoshida, Tomonobu Motai
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Patent number: 7006176Abstract: A liquid crystal display device comprises a poly-silicon TFT substrate having a condenser type digital analog converter, an another substrate disposed so as to face the poly-silicon TFT substrate, and liquid crystal positioned between the poly-silicon TFT substrate and the another substrate. In this liquid crystal device, a light blocking film is formed on a surface of the another substrate and contacts with the liquid crystal. The light blocking film has a resistance larger than n·?/CLC wherein n is a number of bits of the condenser type digital analog converter, ? is an operation stabilizing time of a condenser per one bit, and CLC is electrostatic capacitance between the poly-silicon TFT substrate and the another substrate.Type: GrantFiled: November 18, 2002Date of Patent: February 28, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Sadayasu Fujibayashi, Tomonobu Motai
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Patent number: 6972779Abstract: A liquid crystal display device comprises a plurality of display pixels PX each including sub-pixels weighted in a preset area ratio and a driving circuit which drives the display pixels. Particularly, the driving circuit is configured to determine the gradation of each display pixel PX by selectively combining the sub-pixels with driving periods weighted in a preset time ratio.Type: GrantFiled: September 30, 2002Date of Patent: December 6, 2005Assignee: Kabushiki Kaisha ToshibaInventors: Tomonobu Motai, Yoshiro Aoki, Kazuo Nakamura
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Publication number: 20050001804Abstract: A display device, comprising: signal lines and scanning lines arranged vertically and horizontally on an insulating substrate; display elements formed in vicinity of the signal lines and the scanning lines on said insulating substrate; a signal line drive circuit which drives the signal lines; and a scanning line drive circuit which drives the scanning lines, wherein said signal line drive circuit includes: a display data storage implemented on said insulating substrate, which stores ordinary display data supplied from outside; and a signal driver formed of polysilicon process on said insulating substrate, which drives the signal lines based on the ordinary display data stored in said display data storage.Type: ApplicationFiled: June 18, 2004Publication date: January 6, 2005Applicant: Toshiba Matsushita Display Technology Co., Ltd.Inventor: Tomonobu Motai
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Publication number: 20040212760Abstract: A liquid crystal display device comprises a poly-silicon TFT substrate having a condenser type digital analog converter. an another substrate disposed so as to face the poly-silicon TFT substrate, and liquid crystal positioned between the poly-silicon TFT substrate and the another substrate. In this liquid crystal device, a light blocking film is formed on a surface of the another substrate and contacts with the liquid crystal. The light blocking film has a resistance larger than n·&tgr;/CLC wherein n is a number of bits of the condenser type digital analog converter, &tgr; is an operation stabilizing time of a condenser per one bit, and CLC is electrostatic capacitance between the poly-silicon TFT substrate and the another substrate.Type: ApplicationFiled: November 18, 2002Publication date: October 28, 2004Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Sadayasu Fujibayashi, Tomonobu Motai
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Publication number: 20040008172Abstract: A display device, comprising: display elements formed in vicinity of intersections of signal lines and scan lines aligned vertically and horizontally; image pickup units provided corresponding to each of the display elements by at least one piece, each converting incident radiation at predetermined range into an electric signal; electric charge accumulators which accumulate the electric charge in accordance with the electric signal converted by the image pickup units; and signal processing unit which generates digital image data corresponding to image picked up by the image pickup unit, based on accumulated electric charge of the electric charge accumulator for each of a plurality of image pickup conditions.Type: ApplicationFiled: July 11, 2003Publication date: January 15, 2004Applicant: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Takashi Nakamura, Hirotaka Hayashi, Masahiro Yoshida, Tomonobu Motai
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Publication number: 20030063109Abstract: A liquid crystal display device comprises a plurality of display pixels PX each including sub-pixels weighted in a preset area ratio and a driving circuit which drives the display pixels. Particularly, the driving circuit is configured to determine the gradation of each display pixel PX by selectively combining the sub-pixels with driving periods weighted in a preset time ratio.Type: ApplicationFiled: September 30, 2002Publication date: April 3, 2003Inventors: Tomonobu Motai, Yoshiro Aoki, Kazuo Nakamura
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Patent number: 6498596Abstract: A driving circuit of a display device like liquid crystal display, which is small in circuit size, ensures good quality images, and can freely change the display gradation, is configured to execute digital-analog conversion by reallocating charges between a primary-side capacitor and a secondary-side capacitor and includes a plurality of such capacitors in the primary side or the secondary side to enable both quick conversion and reliable potential output to signal lines. Also in an output circuit, output of signal potentials not affected by fluctuation of properties of TFT and inverters can be realized.Type: GrantFiled: February 18, 2000Date of Patent: December 24, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Kazuo Nakamura, Tomonobu Motai, Takashi Nakamura, Masao Karube, Hirotaka Hayashi
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Patent number: 5977940Abstract: Each pixel of a liquid crystal display device comprises a switching device for selecting a data signal, a memory portion for storing the data signal selected by the switching device and outputting an analog signal corresponding to the data signal, and a circuit for supplying an AC voltage corresponding to the analog signal to the liquid crystal layer. The liquid crystal layer is driven with a data signal stored in the memory portion or with an AC voltage corresponding to an analog signal corresponding to the data signal. With the signal stored in the memory portion, an AC voltage whose effective value or average value is controlled is supplied to the liquid crystal layer. Thus, unless a picture on the display is changed, since it is not necessary to supply the data signal, the peripheral driving circuit can be stopped. Consequently, although a picture is displayed in gradation mode, the power consumption can be remarkably reduced.Type: GrantFiled: March 6, 1997Date of Patent: November 2, 1999Assignee: Kabushiki Kaisha ToshibaInventors: Masahiko Akiyama, Tsuyoshi Hioki, Tomonobu Motai, Goh Itoh, Haruhiko Okumura