公开(公告)号：US08115420B2

公开(公告)日：2012-02-14

申请号：US12420797

申请日：2009-04-08

申请人： Naoyuki Morooka ,  Mizuki Akiyama ,  Kazuhisa Shibata ,  Toru Kohama

发明人： Naoyuki Morooka ,  Mizuki Akiyama ,  Kazuhisa Shibata ,  Toru Kohama

IPC分类号： H05B41/36

CPC分类号： H05B41/295

摘要： In a filament power supply circuit of a vacuum fluorescent display, an integration circuit is connected to a signal input terminal which receives a pulse signal having a magnitude corresponding to a DC power supply voltage. A comparison circuit compares an output voltage from the integration circuit with a reference voltage, and outputs a result. A first filament cathode connection terminal is connected to one terminal of the filament cathode of a vacuum fluorescent display and applies the DC power supply voltage to the one terminal. A second filament cathode connection terminal is connected to the other terminal of the filament cathode to ground the other terminal via a capacitive element. A three-terminal element includes first, second, and third terminals. The first terminal is connected to the first filament cathode connection terminal. The second terminal is grounded. The third terminal receives the output from the comparison circuit so that the path between the first terminal and the second terminal is switched in accordance with it.

摘要翻译： 在真空荧光显示器的灯丝电源电路中，积分电路连接到信号输入端子，该信号输入端子接收具有对应于直流电源电压的幅度的脉冲信号。 比较电路将积分电路的输出电压与参考电压进行比较，并输出结果。 第一灯丝阴极连接端子连接到真空荧光显示器的灯丝阴极的一个端子，并将直流电源电压施加到一个端子。 第二灯丝阴极连接端子连接到灯丝阴极的另一个端子，以经由电容元件接地另一个端子。 三端元件包括第一端子，第二端子和第三端子。 第一端子连接到第一灯丝阴极连接端子。 第二个端子接地。 第三终端接收比较电路的输出，使得第一终端和第二终端之间的路径根据它进行切换。

公开(公告)号：US20100128066A1

公开(公告)日：2010-05-27

申请号：US12451182

申请日：2008-05-01

申请人： Noboru Murata ,  Toru Kohama ,  Masaaki Nakamura

发明人： Noboru Murata ,  Toru Kohama ,  Masaaki Nakamura

IPC分类号： G09G5/10

CPC分类号： G09G3/2018 ,  G09G3/2014 ,  G09G3/22 ,  G09G2310/027

摘要： It is provided at a reasonable cost an image display method and image display apparatus having a small-sized display drive control circuits even in the case of many intensity levels.The plurality of bit strings constituting the indicative data D defining multiple intensity levels are divided into the first bit group including a plurality of bits and the second bit group including a plurality of bits except the bits included in the first bit group, and they are alternately supplied to the input terminals, predetermined light-emitting bodies 22 is lighted in an intensity level corresponding to the first bit group, in the first period K1 set in a luminous control period that is repeatedly assigned to the predetermined light-emitting bodies, and the predetermined light-emitting element 22 is lighted in a relatively finely-set intensity level corresponding to the second bit group, in the second period K2 set in a luminous control period. Even in the case of many intensity levels, a small-sized display drive control circuits 30 can be provided in a reasonable cost.

摘要翻译： 即使在许多强度水平的情况下，也以合理的成本提供具有小尺寸显示驱动控制电路的图像显示方法和图像显示装置。 构成定义多个强度级别的指示数据D的多个位串被分成包括多个位的第一位组，并且第二位组包括除了包括在第一位组中的位之外的多个位，它们是交替的 在设置在重复分配给预定发光体的发光控制周期中的第一周期K1中，向输入端子提供预定发光体22，以与第一位组对应的强度电平点亮， 在发光控制周期中设定的第二周期K2中，预定的发光元件22以对应于第二位组的相对精细设定的强度水平点亮。 即使在许多强度水平的情况下，也可以以合理的成本提供小尺寸的显示驱动控制电路30。

公开(公告)号：US20090256498A1

公开(公告)日：2009-10-15

申请号：US12420797

申请日：2009-04-08

申请人： Naoyuki Morooka ,  Mizuki Akiyama ,  Kazuhisa Shibata ,  Toru Kohama

发明人： Naoyuki Morooka ,  Mizuki Akiyama ,  Kazuhisa Shibata ,  Toru Kohama

IPC分类号： H05B41/36

CPC分类号： H05B41/295

摘要： In a filament power supply circuit of a vacuum fluorescent display, an integration circuit is connected to a signal input terminal which receives a pulse signal having a magnitude corresponding to a DC power supply voltage. A comparison circuit compares an output voltage from the integration circuit with a reference voltage, and outputs a result. A first filament cathode connection terminal is connected to one terminal of the filament cathode of a vacuum fluorescent display and applies the DC power supply voltage to the one terminal. A second filament cathode connection terminal is connected to the other terminal of the filament cathode to ground the other terminal via a capacitive element. A three-terminal element includes first, second, and third terminals. The first terminal is connected to the first filament cathode connection terminal. The second terminal is grounded. The third terminal receives the output from the comparison circuit so that the path between the first terminal and the second terminal is switched in accordance with it.

摘要翻译： 在真空荧光显示器的灯丝电源电路中，积分电路连接到信号输入端子，该信号输入端子接收具有对应于直流电源电压的幅度的脉冲信号。 比较电路将积分电路的输出电压与参考电压进行比较，并输出结果。 第一灯丝阴极连接端子连接到真空荧光显示器的灯丝阴极的一个端子，并将直流电源电压施加到一个端子。 第二灯丝阴极连接端子连接到灯丝阴极的另一个端子，以经由电容元件接地另一个端子。 三端元件包括第一端子，第二端子和第三端子。 第一端子连接到第一灯丝阴极连接端子。 第二个端子接地。 第三终端接收比较电路的输出，使得第一终端和第二终端之间的路径根据它进行切换。