Patents by Inventor Toshihiro Yanagi
Toshihiro Yanagi 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: 8264441Abstract: In one embodiment of the present invention, when a still image is displayed, applied voltages respectively corresponding to a total of n (n being an integer of not less than 4) types of gradation 0 to (n?1) are outputted to pixels. On the other hand, when a moving image is displayed, an applied voltage corresponding to a predetermined gradation m (1?m?(n?2)) is applied to the pixels instead of applied voltages respectively corresponding to gradations of less than the predetermined gradation m.Type: GrantFiled: February 2, 2006Date of Patent: September 11, 2012Assignee: Sharp Kabushiki KaishaInventors: Asahi Yamato, Yuki Kawashima, Kiyoshi Nakagawa, Kohzoh Takahashi, Toshihiro Yanagi
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Patent number: 8217881Abstract: In the display device and the display method of the present invention, a scanning signal line driving circuit controls falls of a scanning signal line, so as to make level shifts occurring to pixel potentials substantially uniform throughout display plane, the level shifts being caused by parasitic capacitances which parasitically exist in scanning signal lines. Fall waveforms of the scanning signal change at a change rate Sx which is a change quantity per unit time, and by desirably setting the change rate Sx, a change rate Sx1 in the vicinity of an input-side end of the scanning signal line and a change rate SxN in the vicinity of the other end thereof are substantially equal to each other, not being influenced by signal delay transmission characteristic which the scanning signal line possesses, like scanning signal line waveforms Vg(1, j) and Vg(N, j).Type: GrantFiled: August 30, 2011Date of Patent: July 10, 2012Assignee: Sharp Kabushiki KaishaInventors: Toshihiro Yanagi, Hideki Morii, Hidekazu Miyata
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Patent number: 8217880Abstract: In one embodiment of the present invention, when a still image is displayed, applied voltages respectively corresponding to a total of n (n being an integer of not less than 4) types of gradation 0 to (n?1) are outputted to pixels. When a moving image is displayed, an applied voltage corresponding to a predetermined gradation m (1?m?(n?2)) is applied to the pixels instead of applied voltages respectively corresponding to gradations of less than the predetermined gradation m. Overdrive driving is performed with respect to a total of n types of gradation.Type: GrantFiled: February 7, 2006Date of Patent: July 10, 2012Assignee: Sharp Kabushiki KaishaInventors: Asahi Yamato, Yuki Kawashima, Kiyoshi Nakagawa, Kohzoh Takahashi, Toshihiro Yanagi
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Patent number: 8102486Abstract: A liquid crystal panel comprises a temperature sensor (1) formed on a glass substrate (11). The temperature sensor (1) includes two junction structures (2) and (5). The junction structure (2) is formed such that two different semiconductor films (3) and (4) are joined together. The junction structure (5) is formed such that two different semiconductor films (6) and (7) are joined together. The liquid crystal panel outputs divided voltage between the voltage applied to the junction structure (2) and the voltage applied to the junction structure (5) as the voltage depending on the temperature of the liquid crystal panel. As the result, the liquid crystal panel comprising the temperature sensor (1) of simple structure and high performance is provided.Type: GrantFiled: June 6, 2007Date of Patent: January 24, 2012Assignee: Sharp Kabushiki KaishaInventors: Asahi Yamato, Kiyoshi Nakagawa, Toshihiro Yanagi
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Publication number: 20120001877Abstract: In the display device and the display method of the present invention, a scanning signal line driving circuit controls falls of a scanning signal line, so as to make level shifts occurring to pixel potentials substantially uniform throughout display plane, the level shifts being caused by parasitic capacitances which parasitically exist in scanning signal lines. Fall waveforms of the scanning signal change at a change rate Sx which is a change quantity per unit time, and by desirably setting the change rate Sx, a change rate Sxl in the vicinity of an input-side end of the scanning signal line and a change rate SxN in the vicinity of the other end thereof are substantially equal to each other, not being influenced by signal delay transmission characteristic which the scanning signal line possesses, like scanning signal line waveforms Vg(1, j) and Vg(N, j).Type: ApplicationFiled: August 30, 2011Publication date: January 5, 2012Applicant: Sharp Kabushiki KaishaInventors: Toshihiro Yanagi, Hideki Morii, Hidekazu Miyata
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Patent number: 8054275Abstract: In one embodiment of the present application, a memory stores a lookup table storing, in accordance with a combination of a value of a video signal of a current frame and a value of a video signal of a previous frame, each of correction values, the correction values in each of which a temporal change of a video signal is enhanced. A correcting circuit carries out, with respect to a correction value selected from the lookup table, a predetermined correcting operation in accordance with a polarity of a voltage to be applied to each of data signal lines S1 through Sm, with the use of a correction coefficient which is set based on properties of liquid crystal. Thus found is a corrected video signal in accordance with a positive or negative polarity. This makes it possible to find, with less memory capacity, an optimum corrected video signal in accordance with a polarity of a voltage to be applied to a data signal line.Type: GrantFiled: June 6, 2007Date of Patent: November 8, 2011Assignee: Sharp Kabushiki KaishaInventors: Asahi Yamato, Kohji Saitoh, Akizumi Fujioka, Keiichi Yamamoto, Toshihiro Yanagi
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Patent number: 8035597Abstract: In the display device and the display method of the present invention, a scanning signal line driving circuit controls falls of a scanning signal line, so as to make level shifts occurring to pixel potentials substantially uniform throughout display plane, the level shifts being caused by parasitic capacitances which parasitically exist in scanning signal lines. Fall waveforms of the scanning signal change at a change rate Sx which is a change quantity per unit time, and by desirably setting the change rate Sx, a change rate Sx1 in the vicinity of an input-side end of the scanning signal line and a change rate SxN in the vicinity of the other end thereof are substantially equal to each other, not being influenced by signal delay transmission characteristic which the scanning signal line possesses, like scanning signal line waveforms Vg(1, j) and Vg(N, j).Type: GrantFiled: February 23, 2010Date of Patent: October 11, 2011Assignee: Sharp Kabushiki KaishaInventors: Toshihiro Yanagi, Hideki Morii, Hidekazu Miyata
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Patent number: 7978164Abstract: A control section (6) merely passes an incoming image data signal DAT onto a source driving section for display driving during the display of a still image. During the display of a moving image, the control section (6) converts, using a computing section (61) and a look-up table (5), a grayscale level signal in the incoming image data signal DAT to a grayscale level signal that is obtainable without using those application voltages at which the response speed of liquid crystal is slow. The control section (6) then outputs the resultant grayscale level signal to the source driving section for display driving.Type: GrantFiled: March 24, 2006Date of Patent: July 12, 2011Assignee: Sharp Kabushiki KaishaInventors: Yuki Kawashima, Asahi Yamato, Kohzoh Takahashi, Kiyoshi Nakagawa, Toshihiro Yanagi
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Patent number: 7973752Abstract: The present invention is so arranged as to include (a) gradation reference potential generating means including a group of output terminals whose voltages are determined in accordance with a voltage division ratio of one ladder resistor, so as to output gradation reference potentials, for example, of 1024, which is a 16 multiple of a required 64-gradations; (b) output terminal designating means including a memory for designating, among from the output terminals, an output terminal for each of the 64-gradations required, in accordance with the display modes; and (c) selecting means for selecting an output terminal that corresponds to an input gradation signal, among from the output terminals designated by the output terminal designating section, and for applying a voltage via the thus selected output terminal to a display screen.Type: GrantFiled: April 24, 2007Date of Patent: July 5, 2011Assignee: Sharp Kabushiki KaishaInventors: Kiyoshi Nakagawa, Toshihiro Yanagi, Taketoshi Nakano
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Publication number: 20110104270Abstract: The present invention provides a method for producing spherical fine particles containing tamsulosin hydrochloride, the method includes the steps of: (1) mixing and stirring tamsulosin hydrochloride (a), microcrystalline cellulose (b), and water until a mixture of the component (a) and the component (b) is uniformly impregnated with the water; (2) granulating the mixture obtained in step (1) using an stirring granulator whose peripheral speed is set to be 5.5 to 9.0 m/s; and (3) drying the granules obtained in step (2). The present invention also provides spherical fine particles obtained according to the method, coated fine particles obtained by applying a coating to the spherical fine particles, and an orally disintegrating tablet containing the coated fine particles.Type: ApplicationFiled: June 29, 2009Publication date: May 5, 2011Applicant: SAWAI PHARMACEUTICAL CO., LTD.Inventors: Toshihiro Yanagi, Yoshitaka Iwakura, Hisaya Sangawa, Yasufumi Okamura
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Publication number: 20110102392Abstract: A liquid crystal display device (10) is a liquid crystal display device (10) having a function of sensing an image of an image sensing object, the liquid crystal display device (10) comprising: a liquid crystal panel (11) which transmits light that has entered the liquid crystal panel (11) and which has a transmittance variable for the light; a backlight device (15) which emits, to the liquid crystal panel (11), both visible light and non-visible light; and an optical sensor (2) which is provided in the liquid crystal panel (11) and which receives at least infrared light (non-visible light) that enters the liquid crystal panel (11), the liquid crystal display device (10) adjusting a ratio between the visible light and the non-visible light, both of which are emitted to an image sensing object, so as to sense an image of the image sensing object with use of at least the non-visible light.Type: ApplicationFiled: May 13, 2009Publication date: May 5, 2011Inventors: Akizumi Fujioka, Toshihiro Yanagi
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Patent number: 7782284Abstract: The present invention relates to a video signal line drive circuit of a display device. An object of the present invention is to, when gradation conversion is performed in the display device using an error diffusion method, provide a display with a smooth gradation change even at boundaries of display blocks. In an error diffusion operation circuit (36) of a source driver unit (302), an error diffusion process is performed for each pixel based on, in addition to image data (Da) for a display block of the source driver unit (302), image data (Da) for areas near boundaries between the display block of the source driver unit (302) and display blocks of source driver units (301, 303) in previous and subsequent stages. A video signal is generated based on error-diffused image data (Db) generated by the error diffusion process.Type: GrantFiled: July 11, 2005Date of Patent: August 24, 2010Assignee: Sharp Kabushiki KaishaInventors: Ken Inada, Takuya Tsuda, Toshihiro Yanagi
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Publication number: 20100194726Abstract: In the display device and the display method of the present invention, a scanning signal line driving circuit controls falls of a scanning signal line, so as to make level shifts occurring to pixel potentials substantially uniform throughout display plane, the level shifts being caused by parasitic capacitances which parasitically exist in scanning signal lines. Fall waveforms of the scanning signal change at a change rate Sx which is a change quantity per unit time, and by desirably setting the change rate Sx, a change rate Sx1 in the vicinity of an input-side end of the scanning signal line and a change rate SxN in the vicinity of the other end thereof are substantially equal to each other, not being influenced by signal delay transmission characteristic which the scanning signal line possesses, like scanning signal line waveforms Vg(1, j) and Vg(N, j).Type: ApplicationFiled: February 23, 2010Publication date: August 5, 2010Applicant: Sharp Kabushiki KaishaInventors: Toshihiro Yanagi, Hideki Morii, Hidekazu Miyata
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Patent number: 7719506Abstract: A display device includes a display panel including a bus line section; and at least one driver for driving the bus line section included in the display panel. Each of the at least one driver includes an amplifier for generating a non-driving signal based on an input signal, the non-driving signal not contributing to driving of the bus line section.Type: GrantFiled: April 5, 2006Date of Patent: May 18, 2010Inventors: Taketoshi Nakano, Takafumi Kawaguchi, Toshihiro Yanagi, Keishi Nishikubo
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Publication number: 20100090975Abstract: A liquid crystal display device includes an active matrix substrate, a counter substrate, a liquid crystal layer arranged between the active matrix substrate and the counter substrate and a capacitive touch panel. The counter substrate is thinner than the active matrix substrate and the capacitive touch panel is arranged on the surface of the active matrix substrate opposite the liquid crystal layer.Type: ApplicationFiled: August 30, 2006Publication date: April 15, 2010Applicant: SHARP KABUSHIKI KAISHAInventors: Hisashi Nagata, Toshihiro Yanagi
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Patent number: 7696969Abstract: In the display device and the display method of the present invention, a scanning signal line driving circuit controls falls of a scanning signal line, so as to make level shifts occurring to pixel potentials substantially uniform throughout display plane, the level shifts being caused by parasitic capacitances which parasitically exist in scanning signal lines. Fall waveforms of the scanning signal change at a change rate Sx which is a change quantity per unit time, and by desirably setting the change rate Sx, a change rate Sx1 in the vicinity of an input-side end of the scanning signal line and a change rate SxN in the vicinity of the other end thereof are substantially equal to each other, not being influenced by signal delay transmission characteristic which the scanning signal line possesses, like scanning signal line waveforms Vg(1, j) and Vg(N, j).Type: GrantFiled: September 13, 2007Date of Patent: April 13, 2010Assignee: Sharp Kabushiki KaishaInventors: Toshihiro Yanagi, Hideki Morii, Hidekazu Miyata
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Patent number: 7698573Abstract: A power source apparatus for a display is provided, which comprises a voltage generating section capable of controlling outputting or output termination of one or more predetermined output voltages, and a switching section provided between an output terminal of the predetermined output voltage and a predetermined reference potential terminal. The switch section is turned from OFF to ON when the voltage generating section performs the output termination control.Type: GrantFiled: March 27, 2003Date of Patent: April 13, 2010Assignee: Sharp CorporationInventors: Asahi Yamato, Toshihiro Yanagi
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Publication number: 20100014028Abstract: A liquid crystal panel comprises a temperature sensor (1) formed on a glass substrate (11). The temperature sensor (1) includes two junction structures (2) and (5). The junction structure (2) is formed such that two different semiconductor films (3) and (4) are joined together. The junction structure (5) is formed such that two different semiconductor films (6) and (7) are joined together. The liquid crystal panel outputs divided voltage between the voltage applied to the junction structure (2) and the voltage applied to the junction structure (5) as the voltage depending on the temperature of the liquid crystal panel. As the result, the liquid crystal panel comprising the temperature sensor (1) of simple structure and high performance is provided.Type: ApplicationFiled: June 6, 2007Publication date: January 21, 2010Inventors: Asahi Yamato, Kiyoshi Nakagawa, Toshihiro Yanagi
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Publication number: 20090295779Abstract: In one embodiment of the present invention, a display controller includes a stable pixel writing period in one horizontal period in a display device, the stable pixel writing period being a period during which a voltage outputted from a gate driver is at a high level. The display controller also includes a first stable pixel writing period determination circuit which determines, by using a reference signal independent from the frame rate in the display device, the stable pixel writing period during which the voltage is at the high level. Thus, the display controller can be provided in which, regardless of whether and how the frame rate is changed, the stable pixel writing period can be of a target length.Type: ApplicationFiled: June 8, 2007Publication date: December 3, 2009Inventors: Toshihiro Yanagi, Takuji Miyamoto, Atsuhito Murai
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Publication number: 20090289884Abstract: In a display device having a plurality of scan signal line driving circuits, its display quality is improved. The display device comprises a plurality of scan signal lines, a plurality of image signal lines, and a plurality of scan signal line driving circuits for generating scan signals for driving the scan signal lines. Each of the scan signal line driving circuit internally generates a driving signal having the waveform of such potential variation that the potential decreases with a slope from a high potential to an intermediate potential between the high potential and a low potential. Each of the scan signal line driving circuits further includes a signal wiring for connecting the scan signal line driving circuits to one another and applying the driving signal.Type: ApplicationFiled: September 5, 2006Publication date: November 26, 2009Applicant: SHARP KABUSHIKI KAISHAInventors: Toshihiro Yanagi, Kazuhiro Tani