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Hiroshi Yaguma, Masato Kobayashi: Organic EL drive circuit and organic EL display device using the same organic EL drive circuit. Rohm, Mattingly Stanger Malur & Brundidge P C, April 7, 2009: US07515124 (104 worldwide citation)

An amplifier circuit for generating a predetermined constant voltage required for resetting organic EL elements or capacitors is provided and an operating current switching circuit switches the operating current of the amplifier circuit to an idling current in a display period and to a steady operat ...


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Masanori Fujisawa, Shinichi Abe, Hiroshi Yaguma: Organic EL drive circuit and organic EL display device using the same organic EL drive circuit. Rohm, Mattingly & Malur P C, September 8, 2009: US07586469 (1 worldwide citation)

A current inputted from a first input terminal and a reference current generated by an internal reference current generator circuit, which are in phase, are inputted to a reference current selector circuit by which either the inputted current or the reference current is selected. The selected curren ...


3
Hiroshi Yaguma: Organic EL drive circuit and organic EL display device using the same organic EL drive circuit. Rohm, Mattingly & Malur P C, August 4, 2009: US07570234

A first input terminal and a second input terminal of an organic EL drive circuit IC are arranged on both sides of the organic EL drive circuit IC, which are contiguous to sides of a plurality of IC's having identical circuit constructions to the organic EL drive circuit IC and arranged contiguously ...


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Hiroshi Yaguma, Masato Kobayashi: Organic EL drive circuit and organic EL display device using the same organic EL drive circuit. Mattingly Stanger Malur & Brundidge PC, December 8, 2005: US20050270256-A1

An amplifier circuit for generating a predetermined constant voltage required for resetting organic EL elements or capacitors is provided and an operating current switching circuit switches the operating current of the amplifier circuit to an idling current in a display period and to a steady operat ...


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Masanori Fujisawa, Shinichi Abe, Hiroshi Yaguma: Organic EL drive circuit and organic EL display device using the same organic EL drive circuit. Mattingly Stanger Malur & Brundidge PC, November 24, 2005: US20050259050-A1

A current inputted from a first input terminal and a reference current generated by an internal reference current generator circuit, which are in phase, are inputted to a reference current selector circuit by which either the inputted current or the reference current is selected. The selected curren ...


7
Hiroshi Yaguma, Shinichi Abe, Masato Kobayashi: Organic EL drive circuit and organic EL display device using the same organic EL drive circuit. Mattingly Stanger Malur & Brundidge PC, January 5, 2006: US20060001619-A1

An organic EL drive circuit includes a reset voltage generator circuit for generating a predetermined constant voltage for constant voltage resetting, reset switches provided between an output of the reset voltage generator circuit and terminal pins of an organic EL display panel and ON/OFF controll ...


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Hiroshi Yaguma: Organic EL drive circuit and organic EL display device using the same organic EL drive circuit. Mattingly Stanger Malur & Brundidge PC, January 26, 2006: US20060017670-A1

A first input terminal and a second input terminal of an organic EL drive circuit IC are arranged on both sides of the organic EL drive circuit IC, which are contiguous to sides of a plurality of IC's having identical circuit constructions to the organic EL drive circuit IC and arranged contiguously ...


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Abe Shinichi, Fujisawa Masanori, Yaguma Hiroshi: Organic el drive circuit and organic el display device using the same organic el drive circuit. Rohm, zhu jingui, November 16, 2005: CN200510068873

PROBLEM TO BE SOLVED: To provide an organic EL drive circuit or an organic EL display device with which brightness unevenness on a display screen of the organic EL display device due to characteristics difference among column driver ICs is reduced and with which a manufacturing cost of the column dr ...


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Abe Shinichi, Kobayashi Masato, Yaguma Hiroshi: Organic el drive circuit and organic el display device using the same organic el drive circuit. Rohm, zhu jingui, December 28, 2005: CN200510078988

An organic EL drive circuit and an organic EL display device which reduce luminance unevenness on a screen in a low tone region between driver ICs driven by currents in a current tone system. The organic EL drive circuit includes; a reset voltage generation circuit for generating a predetermined con ...