Patents by Inventor Tooru Suyama
Tooru Suyama 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).
-
Patent number: 8558826Abstract: A driving circuit for a display device for selectively outputting a driving voltage positive or negative with respect to a given reference voltage of the display device in accordance with an image signal, includes an input stage circuit; and an output stage circuit for outputting a driving voltage between a given high voltage and a first intermediate voltage or a driving voltage between a second intermediate voltage and a given low voltage in accordance with a pair of output stage control signals output from the input stage circuit.Type: GrantFiled: June 6, 2008Date of Patent: October 15, 2013Assignee: Panasonic CorporationInventors: Kazuhito Ito, Junji Takiguchi, Tooru Suyama
-
Patent number: 8552962Abstract: A display apparatus driving circuit capable of reducing the amount of heat generated at a driving unit while suppressing degradation in image quality is provided. A display apparatus driving circuit according to the present invention includes: a source driver for driving a display unit; a heat detecting circuit for detecting amount of heat generated at the source driver, and outputting a heat detection signal when the detected amount of generated heat is equal to or larger than a predetermined reference value; and a heat reduction circuit for changing, when the heat detection signal is received, a driving method of the display unit to reduce the amount of heat generated at said source driver.Type: GrantFiled: August 29, 2011Date of Patent: October 8, 2013Assignee: Panasonic CorporationInventors: Yoshiyuki Otani, Hiroshi Kojima, Masaaki Nishihara, Tomoya Ishikawa, Tooru Suyama
-
Publication number: 20110316823Abstract: A display apparatus driving circuit capable of reducing the amount of heat generated at a driving unit while suppressing degradation in image quality is provided. A display apparatus driving circuit according to the present invention includes: a source driver for driving a display unit; a heat detecting circuit for detecting amount of heat generated at the source driver, and outputting a heat detection signal when the detected amount of generated heat is equal to or larger than a predetermined reference value; and a heat reduction circuit for changing, when the heat detection signal is received, a driving method of the display unit to reduce the amount of heat generated at said source driver.Type: ApplicationFiled: August 29, 2011Publication date: December 29, 2011Applicant: Panasonic CorporationInventors: Yoshiyuki OTANI, Hiroshi Kojima, Masaaki Nishihara, Tomoya Ishikawa, Tooru Suyama
-
Publication number: 20110261541Abstract: The present invention provides a driving device, a display panel module, a display apparatus, and a method of manufacturing the driving device, which are capable of reducing the number of a driving circuit elements without reducing the number of display panels to be taken or increasing a wiring area of a film. The driving device according to an aspect of the present invention drives a display panel and includes: a film on which wires and a circuit element are mounted; and a first film portion and a second film portion separated by providing a first slit in the film. Each of the first film portion and the second film portion is folded at least once and connected to the display panel.Type: ApplicationFiled: October 13, 2010Publication date: October 27, 2011Applicant: PANASONIC CORPORATIONInventors: Munehiko Ogawa, Hiromi Kitayama, Tomoya Ishikawa, Hiroshi Kojima, Kazuyoshi Nishi, Tooru Suyama
-
Publication number: 20110235286Abstract: An object of the present invention is to provide a display panel module which enhances, in a display panel module, heat dissipation characteristics of a driving circuit element without reducing the number of display panels to be taken, and allows reduction in the number of display circuit elements. The display panel module according to the present invention includes: a film package; a display panel; a plurality of first electrodes connected to the film package; a plurality of second electrodes provided at a larger pitch than the first electrodes connected to the display panel; and a flexible printed circuit board 10 that relays pixel data between the film package 5 and the display panel.Type: ApplicationFiled: June 8, 2011Publication date: September 29, 2011Applicant: PANASONIC CORPORATIONInventors: Hiromi KITAYAMA, Munehiko OGAWA, Tomoya ISHIKAWA, Hiroshi KOJIMA, Kazuyoshi NISHI, Tooru SUYAMA
-
Publication number: 20080316196Abstract: A driving circuit for a display device for selectively outputting a driving voltage positive or negative with respect to a given reference voltage of the display device in accordance with an image signal, includes an input stage circuit; and an output stage circuit for outputting a driving voltage between a given high voltage and a first intermediate voltage or a driving voltage between a second intermediate voltage and a given low voltage in accordance with a pair of output stage control signals output from the input stage circuit.Type: ApplicationFiled: June 6, 2008Publication date: December 25, 2008Inventors: Kazuhito Ito, Junji Takiguchi, Tooru Suyama
-
Patent number: 7397471Abstract: A liquid crystal display device according to the present invention includes: a liquid crystal panel 11; a source driver 12 for controlling the gray-scale level by applying a voltage to the liquid crystal panel 11; a DC-DC power supply 13 for driving the source driver 12 by supplying current to the source driver 12; a controller 14 for supplying a signal for controlling the gray-scale level to the source driver 12; and a variation calculator 15 for calculating the amount of change in the signal from the controller 14. In the DC-DC power supply 13, current to be supplied to the source driver 12 changes in accordance with the amount of change in the signal calculated by the variation calculator 15.Type: GrantFiled: September 3, 2004Date of Patent: July 8, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tomokazu Kojima, Tsutomu Sakakibara, Tooru Suyama
-
Publication number: 20080158033Abstract: A driving device for driving an image display system, which sequentially receives input image data corresponding to gradation of each pixel of a display image and outputs a driving voltage signal includes: an operation section for obtaining output image data of which a bit number is smaller than a bit number of the input image data based on input image data of a target pixel to be processed and input image data of a pixel in vicinity of the target pixel; a reference voltage generation section for generating a plurality of reference voltages of different levels; and a reference voltage selection section for selecting one of the plurality of reference voltages. The operation section is configured to obtain output image data of the target pixel so that a difference between the input image data and output image data of the target pixel and a difference between the input image data and output image data of the pixel in vicinity of the target pixel cancel out each other.Type: ApplicationFiled: December 27, 2007Publication date: July 3, 2008Inventors: Yasuyuki Doi, Makoto Hattori, Hisao Kunitani, Atsuhisa Kageyama, Tetsuro Oomori, Osamu Sarai, Tooru Suyama, Kurumi Nakayama, Kazuya Matsumoto
-
Publication number: 20070146231Abstract: A receiving circuit receives one or plural first signals involving display from the outside through an input unit. A first transmitting circuit transmits one or plural second signals relevant to the first signal from the first output unit. A second transmitting circuit transmits the second signal from the second output unit.Type: ApplicationFiled: December 20, 2006Publication date: June 28, 2007Inventors: Yoshihisa Hamahashi, Yasuyuki Doi, Tooru Suyama, Makoto Hattori, Tomoya Ishikawa
-
Patent number: 7119802Abstract: A compact-size driving voltage controller is provided which can be driven with low power. The compact-size driving voltage controller which can be driven with low power includes a High output operational amplifier and a Low output operational amplifier for supplying driving voltages VcomH, VcomL to a load such as a liquid crystal display panel, an output switch for alternating between the outputs of the operational amplifiers, a Low voltage setting operational amplifier for generating a set voltage to be supplied to the non-inverted input terminal of the Low output operational amplifier, a set voltage generator including a current mirror circuit and a clamping circuit, a bias current controller for controlling the bias current flowing in each operational amplifier with a predetermined timing, and a timing controller for controlling the changeover timing of the output switch.Type: GrantFiled: January 24, 2003Date of Patent: October 10, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tooru Suyama, Tsutomu Sakakibara, Tomokazu Kojima, Tetsuro Ohmori, Yoshito Date, Yasuyuki Doi, Masahiro Akabori, Kenji Miyake, Miki Fujino, Takahito Kushima, Tsukasa Kawahara, Kazuhiko Nagaoka, Shinji Miyamoto, Yoshiyuki Konishi
-
Publication number: 20050073490Abstract: A liquid crystal display device according to the present invention includes: a liquid crystal panel 11; a source driver 12 for controlling the gray-scale level by applying a voltage to the liquid crystal panel 11; a DC-DC power supply 13 for driving the source driver 12 by supplying current to the source driver 12; a controller 14 for supplying a signal for controlling the gray-scale level to the source driver 12; and a variation calculator 15 for calculating the amount of change in the signal from the controller 14. In the DC-DC power supply 13, current to be supplied to the source driver 12 changes in accordance with the amount of change in the signal calculated by the variation calculator 15.Type: ApplicationFiled: September 3, 2004Publication date: April 7, 2005Inventors: Tomokazu Kojima, Tsutomu Sakakibara, Tooru Suyama
-
Publication number: 20030151581Abstract: The present invention provides a compact-size driving voltage controller which can be driven with low power. The compact-size driving voltage controller which can be driven with low power includes a High output operational amplifier and a Low output operational amplifier for supplying driving voltages VcomH, VcomL to a load such as a liquid crystal display panel, an output switch for alternating between the outputs of the operational amplifiers, a Low voltage setting operational amplifier for generating a set voltage to be supplied to the non-inverted input terminal of the Low output operational amplifier, a set voltage generator including a current mirror circuit and a clamping circuit, a bias current controller for controlling the bias current flowing in each operational amplifier with a predetermined timing, and a timing controller for controlling the changeover timing of the output switch.Type: ApplicationFiled: January 24, 2003Publication date: August 14, 2003Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Tooru Suyama, Tsutomu Sakakibara, Tomokazu Kojima, Tetsuro Ohmori, Yoshito Date, Yasuyuki Doi, Masahiro Akabori, Kenji Miyake, Miki Fujino, Takahito Kushima, Tsukasa Kawahara, Kazuhiko Nagaoka, Shinji Miyamoto, Yoshiyuki Konishi