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    • 6. 发明申请
    • Driving device, display apparatus using the same, and driving method therefor
    • 驱动装置,使用其的显示装置及其驱动方法
    • US20040196275A1
    • 2004-10-07
    • US10821480
    • 2004-04-08
    • Casio Computer Co., Ltd.Reiji Hattori
    • Reiji Hattori
    • G09G005/00
    • G09G3/3216G09G3/2014G09G3/3266G09G3/3283G09G2310/0248G09G2310/0297
    • A driving device which supplies a current to a plurality of current-driven optical elements to drive the optical elements includes at least a driving current supply circuit which supplies a driving current to each optical element for a predetermined period, and a control voltage applying circuit which applies a charge voltage having a voltage value corresponding to a voltage to be applied to each optical element using the driving current, before the driving current is supplied. The driving current supply circuit includes a single constant current generating circuit which outputs a constant current having the same current value as that of a driving current, and a plurality of current storage circuits which sequentially receive and hold the constant current and output the driving current on the basis of the constant current.
    • 向多个电流驱动光学元件供给电流以驱动光学元件的驱动装置至少包括驱动电流供给电路,其向每个光学元件提供预定周期的驱动电流;以及控制电压施加电路, 在提供驱动电流之前,使用驱动电流施加具有与施加到每个光学元件的电压相对应的电压值的充电电压。 驱动电流供给电路包括:单个恒定电流产生电路,其输出与驱动电流相同的电流值的恒定电流;以及多个电流存储电路,其依次接收并保持恒定电流并输出驱动电流 恒定电流的基础。
    • 7. 发明授权
    • Current drive circuit and drive method thereof, and electroluminescent display apparatus using the circuit
    • 电流驱动电路及其驱动方法,以及使用该电路的电致发光显示装置
    • US08094095B2
    • 2012-01-10
    • US11854341
    • 2007-09-12
    • Reiji Hattori
    • Reiji Hattori
    • G09G3/30G09G3/36
    • G11C19/00G09G3/2011G09G3/2014G09G3/32G09G3/3216G09G3/325G09G3/3283G09G2300/0842G09G2300/0866G09G2310/0221G09G2310/027G09G2310/0294G11C5/14G11C27/028
    • A current drive apparatus for an active matrix display operates a plurality of loads, e.g. organic or inorganic EL elements, by applying a current thereto. The apparatus includes a plurality of output terminals to which the loads are respectively connected. A single current generation circuit comprising e.g. a digital to analogue converter and a current mirror, outputs an operating current having a predetermined current value. A plurality of current storage circuits are provided in accordance with the respective output terminals, sequentially sample and hold the operating current and then simultaneously output the drive currents based on the sampled operating currents to the respective output terminals. The operating current has a current value according to an input signal. The current storage circuit includes a voltage component holding section which samples the operating current outputted from the current generation circuit and holds a voltage component for driving a drive control current corresponding to a current value of the operating current for driving a second current mirror.
    • 用于有源矩阵显示器的电流驱动装置操作多个负载,例如, 有机或无机EL元件,通过向其施加电流。 该装置包括分别连接有负载的多个输出端子。 单个电流产生电路,包括例如 数模转换器和电流镜,输出具有预定电流值的工作电流。 根据各个输出端子提供多个电流存储电路,顺序采样和保持工作电流,然后基于采样的工作电流将驱动电流输出到相应的输出端。 工作电流根据输入信号具有电流值。 电流存储电路包括电压分量保持部分,其对从当前发电电路输出的工作电流进行采样,并且保持用于驱动对应于用于驱动第二电流镜的工作电流的当前值的驱动控制电流的电压分量。
    • 10. 发明授权
    • Organic EL display apparatus
    • 有机EL显示装置
    • US07403196B2
    • 2008-07-22
    • US11092606
    • 2005-03-30
    • Reiji HattoriHisao TanabeNaoki KobayashiYasushi Sato
    • Reiji HattoriHisao TanabeNaoki KobayashiYasushi Sato
    • G09G3/30
    • G09G3/3233G09G3/3291G09G2300/0465G09G2300/0819G09G2300/0833G09G2300/0842G09G2360/147
    • Disclosed is an organic EL display apparatus comprising: a light emitting section; a current control section which controls a current to be flown to the light emitting section; a photoelectric converting section which generates a current upon detecting light emitted from the light emitting section; a first switching section which switches between transmission and non-transmission of the current generated; an amplifying section which performs current-voltage conversion of the current transmitted by the first switching section and amplifies it; a comparison amplifying section which performs comparison and amplification of a voltage value obtained by the amplification and a voltage value corresponding to the image signal; a second switching section which switches between transmission and non-transmission of the voltage value resulting from the comparison and amplification; and an image signal holding capacitor which is charged or discharged according to the voltage value transmitted by the second switching section.
    • 公开了一种有机EL显示装置,包括:发光部; 电流控制部,其控制流向所述发光部的电流; 光电转换部,其在检测从所述发光部发出的光时产生电流; 第一切换部,其在所产生的电流的传输和不传输之间切换; 放大部,其对由所述第一开关部发送的电流进行电流电压转换,并对其进行放大; 比较放大部,其对通过放大获得的电压值和对应于图像信号的电压值进行比较和放大; 第二切换部,其在由比较和放大产生的电压值的传输和非传输之间切换; 以及根据由第二切换部发送的电压值进行充放电的图像信号保持电容器。