Patents by Inventor Satoshi Sekido
Satoshi Sekido 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: 20230229257Abstract: A display device with a touch panel is provided with a transmission touch electrode, a reception touch electrode, a transmission reference electrode formed from the same material as the transmission touch electrode, a reception reference electrode formed from the same material as the reception touch electrode, a reference electrode that faces the transmission reference electrode and to which a predetermined potential is applied, and a touch control circuit that detects a touch by a pointer on the basis of a comparison between a touch detection signal from the reception touch electrode and a detection threshold value. The reception reference electrode outputs a reference signal based on a capacitance formed between the reception reference electrode and the transmission reference electrode, and the touch control circuit changes the detection threshold value in accordance with a change in the reference signal.Type: ApplicationFiled: January 3, 2023Publication date: July 20, 2023Applicant: Sharp Display Technology CorporationInventors: Takuya HENMI, Satoshi SEKIDO, Keisuke KANDA, Yuhji SATOH
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Patent number: 7705812Abstract: A liquid crystal display apparatus including a glass substrate having a liquid display part formed thereon and a plurality of flexible boards connected to a periphery of the glass substrate. The apparatus also includes a liquid crystal drive IC mounted on each of the flexible boards so as to generate liquid crystal drive signals based on input signals. Additionally, the glass substrate has first internal lines and second internal lines. The first internal lines supply the input signals supplied from a first one of the flexible boards to a second one of the flexible boards, and the second internal lines return the input signals supplied from the first one of the flexible boards back to the first one of the flexible boards without any change.Type: GrantFiled: September 14, 2005Date of Patent: April 27, 2010Assignee: Sharp Kabushiki KaishaInventors: Takashi Yuda, Satoshi Sekido, Syouichi Fukutoku
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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: 7245281Abstract: A drive circuit device for a display device which drives a plurality of source bus lines provided on a display panel includes a driver unit that receives a clock signal, a data signal and a control signal, sequentially fetches the data signal, and generates drive signals for the source bus lines in accordance to the fetched data signal. The device further includes a gate unit that, after elapse of specified time from the reception of the driver unit, and at a timing when a rear-stage drive circuit device starts receiving, starts outputting of a propagation signal including at least one of the clock signal, data signal and control signal to the rear-stage drive circuit device. Consequently, the power consumption required for supplying these signals and the generated amount of electromagnetic waves resulting from the signal supply can be suppressed.Type: GrantFiled: March 20, 2002Date of Patent: July 17, 2007Assignee: Sharp Kabushiki KaishaInventors: Satoshi Sekido, Yasutake Furukoshi, Syouichi Fukutoku
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Patent number: 7064739Abstract: It is the object to provide a liquid crystal display to prevent adverse effects by crosstalk and/or EMI. A liquid crystal display, which has a transistor board having a plurality of transistors each including a gate, a source and a drain, a common board including a common electrode and provided to oppose the aforesaid transistor board via liquid crystal, a gate driver for driving the gates of a plurality of transistors, and a source driver with a plurality of source driver units being cascaded, for driving the sources of a plurality of transistors, is provided. Each of the source driver units has flip-flops operated in synchronism with a clock signal, and inverters for inverting the clock signal to output it to the source driver unit in a next stage.Type: GrantFiled: March 12, 2003Date of Patent: June 20, 2006Assignee: Sharp Kabushiki KaishaInventors: Satoshi Sekido, Syouichi Fukutoku, Katsuyoshi Hiraki
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Publication number: 20060055649Abstract: A liquid crystal display device converts input signals into liquid crystal drive signals so as to display an image on a liquid crystal panel. A plurality of flexible boards are connected to the liquid crystal panel, each of the flexible boards having a drive IC which converts the input signals into the liquid crystal drive signals. A connection board is connected to the liquid crystal panel so as to supply the input signals to first input lines formed on the liquid crystal panel. Each of the flexible boards has second input signal lines for supplying the input signals to the drive IC; a first end of each of the second input signal lines is connected to a respective one of a first group of the first input signal lines.Type: ApplicationFiled: September 14, 2005Publication date: March 16, 2006Applicant: SHARP KABUSHIKI KAISHAInventors: Takashi Yuda, Satoshi Sekido, Syouichi Fukutoku
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Patent number: 7002544Abstract: A circuit for driving a liquid crystal display panel includes a plurality of output circuits that are coupled to respective data bus lines of the liquid crystal display panel, and output liquid crystal drive signals to the respective data bus lines with respective delays that progressively increase from a first one of the data bus lines to a last one of the data bus lines.Type: GrantFiled: March 13, 2002Date of Patent: February 21, 2006Assignee: Sharp Kabushiki KaishaInventor: Satoshi Sekido
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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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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: 20030184511Abstract: It is the object to provide a liquid crystal display to prevent adverse effects by crosstalk and/or EMI. A liquid crystal display, which has a transistor board having a plurality of transistors each including a gate, a source and a drain, a common board including a common electrode and provided to oppose the aforesaid transistor board via liquid crystal, a gate driver for driving the gates of a plurality of transistors, and a source driver with a plurality of source driver units being cascaded, for driving the sources of a plurality of transistors, is provided. Each of the source driver units has flip-flops operated in synchronism with a clock signal, and inverters for inverting the clock signal to output it to the source driver unit in a next stage.Type: ApplicationFiled: March 12, 2003Publication date: October 2, 2003Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATIONInventors: Satoshi Sekido, Syouichi Fukutoku, Katsuyoshi Hiraki
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Publication number: 20030098833Abstract: A circuit for driving a liquid crystal display panel includes a plurality of output circuits that are coupled to respective data bus lines of the liquid crystal display panel, and output liquid crystal drive signals to the respective data bus lines with respective delays that progressively increase from a first one of the data bus lines to a last one of the data bus lines.Type: ApplicationFiled: March 13, 2002Publication date: May 29, 2003Applicant: FUJITSU LIMITEDInventors: Satoshi Sekido, Koichi Katagawa, Katsuyoshi Hiraki, Yasutake Furukoshi
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Publication number: 20030048249Abstract: A drive circuit device for a display device which drives a plurality of source bus lines provided on a display panel, the drive circuit device comprises: a driver unit(20) that receives a clock signal, a data signal and a control signal, and sequentially fetches the data signal, and generates drive signals for the source bus lines in accordance to the fetched data signal; and a gate unit(22) that, after elapse of specified time from the reception of the driver unit, and at a timing when a rear-stage drive circuit device starts receiving, starts outputting of a propagation signal including at least one of the clock signal, data signal and control signal to the rear-stage drive circuit device. Consequently, the power consumption required for supplying these signals and the generated amount of electromagnetic waves resulting from the signal supply can be suppressed.Type: ApplicationFiled: March 20, 2002Publication date: March 13, 2003Applicant: FUJITSU LIMITEDInventors: Satoshi Sekido, Yasutake Furukoshi, Syouichi Fukutoku
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Publication number: 20020180686Abstract: A liquid crystal display device converts input signals into liquid crystal drive signals so as to display an image on a liquid crystal panel. A plurality of flexible boards are connected to the liquid crystal panel, each of the flexible boards having a drive IC which converts the input signals into the liquid crystal drive signals. A connection board is connected to the liquid crystal panel so as to supply the input signals to first input lines formed on the liquid crystal panel. Each of the flexible boards has second input signal lines for supplying the input signals to the drive IC; a first end of each of the second input signal lines is connected to a respective one of a first group of the first input signal lines.Type: ApplicationFiled: March 19, 2002Publication date: December 5, 2002Applicant: FUJITSU LIMITEDInventors: Takashi Yuda, Akifumi Matsunaga, Fumiaki Yamada, Koshu Yonemura, Toshiaki Suzuki, Kazuhiro Nukiyama, Toshiaki Naka, Satoshi Sekido, Yasutake Furukoshi, Syouichi Fukutoku
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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: 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
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Patent number: 5077270Abstract: Elements comprising a non-oriented substrate and a thin film of a compound of the following general formulaLa.sub.1-x-y Sr.sub.x Ba.sub.y MeO.sub.3-.delta.in which 0.ltoreq.x.ltoreq.0.8, 0.ltoreq.y.ltoreq.0.5, 0.1.ltoreq.x+y.ltoreq.0.8, and 0.ltoreq..delta..ltoreq.0.5 and Me is at least one member selected from the group consisting of Mn, Fe and Co. The film is crystallographically oriented in a certain direction The substrate is made of an amorphous material or a metal, or is constituted of an amorphous film formed on any bodies such as of a polycrystalline material. On the oriented thin film is further formed a perovskite oxide film or a superconductive film. The process for making the thin film of the above formula is also described.Type: GrantFiled: March 25, 1988Date of Patent: December 31, 1991Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Takeshi Takeda, Sohji Tsuchiya, Satoshi Sekido, Yasuhiko Machida