Patents by Inventor Takae Ito
Takae Ito 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: 7592994Abstract: A liquid crystal display apparatus includes a liquid crystal display unit, a plurality of data driving units which provide image data to said liquid crystal display unit, and a control unit which enables said plurality of data driving units to take in the image data simultaneously if the image data to be provided to said data driving units are identical.Type: GrantFiled: September 30, 2004Date of Patent: September 22, 2009Assignee: Sharp Kabushiki KaishaInventors: Satoshi Sekido, Takae Ito, Shinpei Nagatani, Hidefumi Yoshida, Takashi Sasabayashi, Koichi Katagawa, Katsuhiko Kishida, Mikio Oshiro, Katsunori Tanaka, Toshimitsu Minemura, Katsuyoshi Hiraki, Yuichi Inoue
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Patent number: 7382343Abstract: Polarity patterns (polarity pattern signal POL) are stored in a ROM in a polarity pattern controlling portion. Then, the polarity pattern is changed according to applications of a liquid crystal display panel. Since the polarity pattern is stored in the ROM, the polarity pattern can be changed without modification of a hardware. Also, two sets of polarity patterns or more are stored in the ROM, and then any one polarity pattern can be output according to the application. In addition, the polarity pattern signal POL and image signals RGB are compared with each other, and then the polarity pattern which is to be read from the ROM is switched according to the result.Type: GrantFiled: September 24, 2003Date of Patent: June 3, 2008Assignee: Sharp Kabushiki KaishaInventors: Katsuyoshi Hiraki, Takae Ito, Toshiaki Suzuki, Seiji Hayashimoto, Masaki Miyahara, Toshimitsu Minemura, Koichi Katagawa, Satoshi Sekido, Yasutake Furukoshi
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Patent number: 7253810Abstract: A liquid crystal display can operate with as small a number of control signals supplied to individual drivers as possible while current control functions are maintained. The liquid crystal display comprises a liquid crystal panel containing a data line, a data driver driving a data line, and a controller outputting N control functions controlling a driving operation the data driver driving the data line through less than or equal to (N?1) control signal lines connected to the data driver.Type: GrantFiled: January 31, 2003Date of Patent: August 7, 2007Assignee: Sharp Kabushiki KaishaInventors: Takae Ito, Kazuhiro Nukiyama
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Publication number: 20060274016Abstract: A liquid crystal display can operate with as the small number of control signals supplied to individual drivers as possible while current control functions are maintained. The liquid crystal display comprises a liquid crystal panel containing a data line, a data driver driving a data line, and a controller outputting N control functions controlling a driving operation the data driver driving the data line to less than or equal to (N-1) control signal lines connected to the data driver.Type: ApplicationFiled: August 17, 2006Publication date: December 7, 2006Inventors: Takae Ito, Kazuhiro Nukiyama
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Patent number: 7133106Abstract: A liquid crystal display device has a liquid crystal panel displaying an image. A printed circuit board is arranged along one side of the liquid crystal panel, and a plurality of flexible printed circuit boards connect the liquid crystal panel and the printed circuit board. At least two driver ICs are mounted on each flexible printed circuit board and the at least two driver ICs are cascaded with respect to input signals.Type: GrantFiled: July 3, 2003Date of Patent: November 7, 2006Assignee: Sharp Kabushiki KaishaInventor: Takae Ito
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Publication number: 20050057483Abstract: A liquid crystal display apparatus includes a liquid crystal display unit, a plurality of data driving units which provide image data to said liquid crystal display unit, and a control unit which enables said plurality of data driving units to take in the image data simultaneously if the image data to be provided to said data driving units are identical.Type: ApplicationFiled: September 30, 2004Publication date: March 17, 2005Applicants: FUJITSU DISPLAY TECHNOLOGIES CORPORATIONInventors: Satoshi Sekido, Takae Ito, Shinpei Nagatani, Hidefumi Yoshida, Takashi Sasabayashi, Koichi Katagawa, Katsuhiko Kishida, Mikio Oshiro, Katsunori Tanaka, Toshimitsu Minemura, Katsuyoshi Hiraki, Yuichi Inoue
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Patent number: 6856373Abstract: A liquid crystal display apparatus includes a liquid crystal display unit, a plurality of data driving units which provide image data to said liquid crystal display unit, and a control unit which enables said plurality of data driving units to take in the image data simultaneously if the image data to be provided to said data driving units are identical.Type: GrantFiled: August 27, 2001Date of Patent: February 15, 2005Assignee: Fujitsu Display Technologies CorporationInventors: Satoshi Sekido, Takae Ito, Shinpei Nagatani, Hidefumi Yoshida, Takashi Sasabayashi, Koichi Katagawa, Katsuhiko Kishida, Mikio Oshiro, Katsunori Tanaka, Toshimitsu Minemura, Katsuyoshi Hiraki, Yuichi Inoue
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Publication number: 20040070581Abstract: Polarity patterns (polarity pattern signal POL) are stored in a ROM in a polarity pattern controlling portion. Then, the polarity pattern is changed according to applications of a liquid crystal display panel. Since the polarity pattern is stored in the ROM, the polarity pattern can be changed without modification of a hardware. Also, two sets of polarity patterns or more are stored in the ROM, and then any one polarity pattern can be output according to the application. In addition, the polarity pattern signal POL and image signals RGB are compared with each other, and then the polarity pattern which is to be read from the ROM is switched according to the result.Type: ApplicationFiled: September 24, 2003Publication date: April 15, 2004Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATIONInventors: Katsuyoshi Hiraki, Takae Ito, Toshiaki Suzuki, Seiji Hayashimoto, Masaki Miyahara, Toshimitsu Minemura, Koichi Katagawa, Satoshi Sekido, Yasutake Furukoshi
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Publication number: 20040012745Abstract: A liquid crystal display device has a liquid crystal panel displaying an image. A printed circuit board is arranged along one side of the liquid crystal panel, and a plurality of flexible printed circuit boards connect the liquid crystal panel and the printed circuit board. At least two driver ICs are mounted on each flexible printed circuit board and the at least two driver ICs are cascaded with respect to input signals.Type: ApplicationFiled: July 3, 2003Publication date: January 22, 2004Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATIONInventor: Takae Ito
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Patent number: 6680722Abstract: Polarity patterns (polarity pattern signal POL) are stored in a ROM in a polarity pattern controlling portion. Then, the polarity pattern is changed according to applications of a liquid crystal display panel. Since the polarity pattern is stored in the ROM, the polarity pattern can be changed without modification of a hardware. Also, two sets of polarity patterns or more are stored in the ROM, and then any one polarity pattern can be output according to the application. In addition, the polarity pattern signal POL and image signals RGB are compared with each other, and then the polarity pattern which is to be read from the ROM is switched according to the result.Type: GrantFiled: October 27, 1999Date of Patent: January 20, 2004Assignee: Fujitsu Display Technologies CorporationInventors: Katsuyoshi Hiraki, Takae Ito, Toshiaki Suzuki, Seiji Hayashimoto, Masaki Miyahara, Toshimitsu Minemura, Koichi Katagawa, Satoshi Sekido, Yasutake Furukoshi
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Publication number: 20030151585Abstract: A liquid crystal display can operate with as the small number of control signals supplied to individual drivers as possible while current control functions are maintained. The liquid crystal display comprises a liquid crystal panel containing a data line, a data driver driving a data line, and a controller outputting N control functions controlling a driving operation the data driver driving the data line to less than or equal to (N−1) control signal lines connected to the data driver.Type: ApplicationFiled: January 31, 2003Publication date: August 14, 2003Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATIONInventors: Takae Ito, Kazuhiro Nukiyama
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Patent number: 6538633Abstract: A liquid crystal display apparatus displaying an image on a liquid crystal panel thereof includes a driving driver driving the liquid crystal panel, a control signal forming circuit generating two clock signals CK1 and CK2 by dividing a clock signal CK used for transferring image display data to the liquid crystal panel, transmission lines transmitting the clock signals CK1 and CK2, and an exclusive OR circuit restoring the clock signal CK based on the two clock signals CK1 and CK2 and supplying the restored clock signal CK to the driving driver.Type: GrantFiled: August 31, 2000Date of Patent: March 25, 2003Assignee: Fujitsu LimitedInventor: Takae Ito
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Publication number: 20020118152Abstract: A data driving part takes in image display data in response to a clock signal supplied, and causes an image display part to display an image according to the image display data. A control part detects a change pattern of the image display data, and adjusts a phase relationship between the clock signal and image display data according to the detected change pattern.Type: ApplicationFiled: December 11, 2001Publication date: August 29, 2002Applicant: FUJITSU LIMITEDInventors: Kazuhiro Nukiyama, Takae Ito, Hiroshi Yamazaki, Yasutake Furukoshi
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Publication number: 20020044118Abstract: A liquid crystal display apparatus includes a liquid crystal display unit, a plurality of data driving units which provide image data to said liquid crystal display unit, and a control unit which enables said plurality of data driving units to take in the image data simultaneously if the image data to be provided to said data driving units are identical.Type: ApplicationFiled: August 27, 2001Publication date: April 18, 2002Applicant: FUJITSU LIMITEDInventors: Satoshi Sekido, Takae Ito, Shinpei Nagatani, Hidefumi Yoshida, Takashi Sasabayashi, Koichi Katagawa, Katsuhiko Kishida, Mikio Oshiro, Katsunori Tanaka, Toshimitsu Minemura, Katsuyoshi Hiraki, Yuichi Inoue
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Patent number: 6249270Abstract: A liquid crystal display device for displaying a predetermined display data on selected pixels on a liquid crystal display panel is disclosed. The liquid crystal display device includes a maximum amplitude display data detecting unit for detecting the display data corresponding to the maximum drive voltage having a maximum amplitude outputted from a data driver; and a variable output voltage type power source circuit portion for generating a power source voltage to be applied to the data driver and capable of changing the power source voltage based on the result of detection by the maximum amplitude display data detecting unit. The variable output voltage type power source circuit portion selects the power source voltage required for displaying the display data and supplies the selected power source voltage to the data driver for each predetermined period, for example, each one-frame period.Type: GrantFiled: November 24, 1998Date of Patent: June 19, 2001Assignee: Fujitsu LimitedInventor: Takae Ito
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Patent number: 5999158Abstract: A drive circuit for a display device including a display panel for displaying an image line by line has a data register. The data register is used to store optional data in response to a control signal, to overwrite the stored optional data with display data, and to prepare display data for a given line of the display panel. The data prepared in the data register is transferred to the display panel to display the given line of the display panel. The drive circuit is capable of supplementing display data if the display data is improper for the display, thereby securing the quality of the displayed images.Type: GrantFiled: September 16, 1996Date of Patent: December 7, 1999Assignee: Fujitsu LimitedInventors: Satoshi Sekido, Hirokazu Miwa, Mikio Oshiro, Takae Ito, Hiromi Enomoto
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Patent number: 5956007Abstract: A driving circuit for driving an LCD, using frame modulation, includes: a data converting circuit for frame modulation having at least two averaged patterns for use in averaging brightness during frame modulation and converting display data using the averaged patterns and a display data detecting circuit for detecting the logical states of at least two leading dots specified in said display data. The data converting circuit for frame modulation controls switching of the at least two averaged patterns according to the result of detection. This configuration makes it possible to substantially prevent the occurrence of flickers irrespective of the display pattern. This contributes to realization of an excellent display.Type: GrantFiled: August 4, 1995Date of Patent: September 21, 1999Assignee: Fujitsu LimitedInventors: Takae Ito, Katsunori Tanaka, Satoshi Sekido