公开(公告)号：US08120571B2

公开(公告)日：2012-02-21

申请号：US12088969

申请日：2006-11-06

申请人： Go Ezaki ,  Taisuke Chida

发明人： Go Ezaki ,  Taisuke Chida

IPC分类号： G09G3/36

CPC分类号： G09G3/3413 ,  G09G2310/0237 ,  G09G2320/0261 ,  G09G2320/0633 ,  H05B33/086

摘要： An LED driver 5 includes current sources (52R, 52G, 52B) for generating drive current of LED (4R, 4G, 4B); and a black insert control section (54) for generating a black insert signal (BK) for determining a black insert period in one frame from a frame synchronizing signal (such as vertical synchronizing signal VS). The current sources (52R, 52G, 52B) stop current supply to the LEDs (4R, 4G, 4B) during the black insert period according to the black insert signal (BK). With this configuration, it is possible to enhance the moving image visibility of a liquid crystal display device without increasing the load on display control means or significantly lowering the light source brightness.

摘要翻译： LED驱动器5包括用于产生LED（4R，4G，4B）的驱动电流的电流源（52R，52G，52B）; 以及用于从帧同步信号（诸如垂直同步信号VS）生成用于确定一帧中的黑插入周期的黑插入信号（BK）的黑插入控制部分（54）。 根据黑插入信号（BK），在黑插入期间，电流源（52R，52G，52B）停止向LED（4R，4G，4B）供电。 利用这种配置，可以增加液晶显示装置的运动图像可视性，而不增加显示控制装置的负担或显着降低光源亮度。

公开(公告)号：US20090085538A1

公开(公告)日：2009-04-02

申请号：US11883038

申请日：2006-01-25

申请人： Mitsuaki Miguchi ,  Taisuke Chida ,  Go Ezaki

发明人： Mitsuaki Miguchi ,  Taisuke Chida ,  Go Ezaki

IPC分类号： G05F1/00

CPC分类号： H05B33/0815 ,  H02M3/07 ,  H02M2001/0045

摘要： In the power supply apparatus which performs voltage conversion of an input voltage (Vbat), with a predetermined set voltage as a target value, and outputs the converted voltage, a boost ratio setting unit sets a boost ratio (XCP) of the charge pump circuit based on the input voltage (Vbat) and a predetermined set voltage. A voltage adjustment unit is a regulator circuit, and adjusts voltage (Vx) so that output voltage (Vout) of the charge pump circuit approaches the set voltage. An output voltage setting unit generates a predetermined set voltage as a digital value (Dset). An A/D converter performs analog-digital conversion of the input voltage (Vbat). The boost ratio setting unit sets the boost ratio based on a result of comparing an input voltage (Ddet) that has undergone analog-digital conversion, and the set voltage (Dset).

摘要翻译： 在以预定设定电压作为目标值进行输入电压（Vbat）的电压转换并输出转换后的电压的电源装置中，升压比设定部设定电荷泵电路的升压比（XCP） 基于输入电压（Vbat）和预定的设定电压。 电压调节单元是调节器电路，并且调整电压（Vx）使得电荷泵电路的输出电压（Vout）接近设定电压。 输出电压设定单元产生预定的设定电压作为数字值（Dset）。 A / D转换器对输入电压（Vbat）进行模数转换。 升压比设定单元根据比较经过模拟数字转换的输入电压（Ddet）和设定电压（Dset）的结果来设定升压比。

公开(公告)号：US07368982B2

公开(公告)日：2008-05-06

申请号：US10597908

申请日：2005-08-24

申请人： Taisuke Chida

发明人： Taisuke Chida

IPC分类号： H03F1/02

CPC分类号： H03F3/45932 ,  H03F2200/421 ,  H03F2203/45138 ,  H03F2203/45146 ,  H03F2203/45212

摘要： In a balanced output circuit, an input signal inputted thereto is provided as a first output signal thereof on one hand, and on the other hand the input signal is inputted to an inverting amplification circuit and is compared with a comparison voltage before the signal is outputted as a second output signal. Based on the comparison of the first and second output signals, the comparison voltage is controlled by a charging voltage of a capacitor such that the DC voltage of the second output signal is equalized to that of the first output signal. Thus, the DC offset voltage between the first output signal (non-inverted output signal) and the second output signal (inverted output signal) can be properly annihilated by a simple circuit.

摘要翻译： 在平衡输出电路中，一方面输入输入信号作为第一输出信号，另一方面，将输入信号输入到反相放大电路，并将其与输出信号之前的比较电压进行比较 作为第二输出信号。 基于第一和第二输出信号的比较，比较电压由电容器的充电电压控制，使得第二输出信号的直流电压与第一输出信号的直流电压相等。 因此，第一输出信号（非反相输出信号）与第二输出信号（反相输出信号）之间的直流偏移电压可以通过简单的电路适当地消除。

公开(公告)号：US20070279270A1

公开(公告)日：2007-12-06

申请号：US11807539

申请日：2007-05-29

申请人： Taisuke Chida ,  Kunihiro Komiya

发明人： Taisuke Chida ,  Kunihiro Komiya

IPC分类号： H03M1/66

CPC分类号： H03M1/0612 ,  H03M1/745

摘要： Source potentials of n output transistors are fixed by common fixed voltage, and sources are connected to a current output terminal. A drain and a gate of an input transistor are commonly connected to the drains and the gates of the output transistors respectively. A first current-to-voltage conversion unit is connected onto the drain side of the input transistor to convert current Im2 flowing through the input transistor into voltage Vx1. A second current-to-voltage conversion unit converts reference current Iref into voltage Vx2. The voltages Vx1 and Vx2 are input to a first error amplifier, and the first error amplifier adjusts gate voltages of the input transistor and output transistors. n switches are provided on a path through which output of the first error amplifier reaches the gate of the output transistor. A control unit controls on/off of the switch according to a digital signal.

摘要翻译： n个输出晶体管的源极电位由公共固定电压固定，源极连接到电流输出端子。 输入晶体管的漏极和栅极分别连接到输出晶体管的漏极和栅极。 第一电流 - 电压转换单元连接到输入晶体管的漏极侧，以将流过输入晶体管的电流Im 2转换成电压Vx1。第二电流 - 电压转换单元将参考电流Iref转换成电压Vx 电压Vx 1和Vx 2被输入到第一误差放大器，第一误差放大器调节输入晶体管和输出晶体管的栅极电压。 n个开关设置在第一误差放大器的输出到达输出晶体管的栅极的路径上。 控制单元根据数字信号控制开关的开/关。

公开(公告)号：US20090045758A1

公开(公告)日：2009-02-19

申请号：US11913730

申请日：2006-05-29

申请人： Taisuke Chida

发明人： Taisuke Chida

IPC分类号： H05B41/38

CPC分类号： H03F3/72 ,  H03F1/301 ,  H03F2200/351 ,  H03F2200/447 ,  H03F2200/78 ,  H03F2203/7215

摘要： A drive circuit (100) includes an operational amplifier (OP1) that compares a voltage applied to an inverting input terminal with a reference voltage applied to a non-inverting input terminal, a MOS transistor (M1) that has an output connected to the inverting input terminal of the operational amplifier (OP1) and supplies a current to a load (3) depending on a comparison result of the operational amplifier (OP1), and a switch (SW1) that switches, based on a control signal, between outputting the comparison result of the operational amplifier (OP1) to the MOS transistor (M1) and outputting a predetermined voltage to the MOS transistor (M1) to turn off the MOS transistor (M1).

摘要翻译： 驱动电路（100）包括：运算放大器（OP1），其将施加到反相输入端子的电压与施加到非反相输入端子的基准电压进行比较; MOS晶体管（M1），其输出端连接到反相输入端子 运算放大器（OP1）的输入端子，并且根据运算放大器（OP1）的比较结果向负载（3）提供电流;以及开关（SW1），其基于控制信号在输出 运算放大器（OP1）与MOS晶体管（M1）的比较结果，并向MOS晶体管（M1）输出预定的电压以关闭MOS晶体管（M1）。

公开(公告)号：US20090040173A1

公开(公告)日：2009-02-12

申请号：US12088969

申请日：2006-11-06

申请人： Go Ezaki ,  Taisuke Chida

发明人： Go Ezaki ,  Taisuke Chida

IPC分类号： G09G3/36

CPC分类号： G09G3/3413 ,  G09G2310/0237 ,  G09G2320/0261 ,  G09G2320/0633 ,  H05B33/086

摘要： An LED driver 5 includes current sources (52R, 52G, 52B) for generating drive current of LED (4R, 4G, 4B); and a black insert control section (54) for generating a black insert signal (BK) for determining a black insert period in one frame from a frame synchronizing signal (such as vertical synchronizing signal VS). The current sources (52R, 52G, 52B) stop current supply to the LEDs (4R, 4G, 4B) during the black insert period according to the black insert signal (BK). With this configuration, it is possible to enhance the moving image visibility of a liquid crystal display device without increasing the load on display control means or significantly lowering the light source brightness.

摘要翻译： LED驱动器5包括用于产生LED（4R，4G，4B）的驱动电流的电流源（52R，52G，52B）; 以及用于从帧同步信号（诸如垂直同步信号VS）生成用于确定一帧中的黑插入周期的黑插入信号（BK）的黑插入控制部分（54）。 根据黑插入信号（BK），在黑插入期间，电流源（52R，52G，52B）停止向LED（4R，4G，4B）供电。 利用这种配置，可以增加液晶显示装置的运动图像可视性，而不增加显示控制装置的负担或显着降低光源亮度。

公开(公告)号：US08253343B2

公开(公告)日：2012-08-28

申请号：US12899990

申请日：2010-10-07

申请人： Taisuke Chida

发明人： Taisuke Chida

IPC分类号： H05B39/00

CPC分类号： H03F3/72 ,  H03F1/301 ,  H03F2200/351 ,  H03F2200/447 ,  H03F2200/78 ,  H03F2203/7215

摘要： A drive circuit (100) includes an operational amplifier (OP1) that compares a voltage applied to an inverting input terminal with a reference voltage applied to a non-inverting input terminal, a MOS transistor (M1) that has an output connected to the inverting input terminal of the operational amplifier (OP1) and supplies a current to a load (3) depending on a comparison result of the operational amplifier (OP1), and a switch (SW1) that switches, based on a control signal, between outputting the comparison result of the operational amplifier (OP1) to the MOS transistor (M1) and outputting a predetermined voltage to the MOS transistor (M1) to turn off the MOS transistor (M1).

摘要翻译： 驱动电路（100）包括：运算放大器（OP1），其将施加到反相输入端子的电压与施加到非反相输入端子的基准电压进行比较; MOS晶体管（M1），其输出端连接到反相输入端子 运算放大器（OP1）的输入端子，并且根据运算放大器（OP1）的比较结果向负载（3）提供电流;以及开关（SW1），其基于控制信号在输出 运算放大器（OP1）与MOS晶体管（M1）的比较结果，并向MOS晶体管（M1）输出预定的电压以关闭MOS晶体管（M1）。

公开(公告)号：US08193724B2

公开(公告)日：2012-06-05

申请号：US11883038

申请日：2006-01-25

申请人： Mitsuaki Miguchi ,  Taisuke Chida ,  Go Ezaki

发明人： Mitsuaki Miguchi ,  Taisuke Chida ,  Go Ezaki

IPC分类号： G05F1/00 ,  H05B39/04 ,  H03M1/02

CPC分类号： H05B33/0815 ,  H02M3/07 ,  H02M2001/0045

摘要： In the power supply apparatus which performs voltage conversion of an input voltage (Vbat), with a predetermined set voltage as a target value, and outputs the converted voltage, a boost ratio setting unit sets a boost ratio (XCP) of the charge pump circuit based on the input voltage (Vbat) and a predetermined set voltage. A voltage adjustment unit is a regulator circuit, and adjusts voltage (Vx) so that output voltage (Vout) of the charge pump circuit approaches the set voltage. An output voltage setting unit generates a predetermined set voltage as a digital value (Dset). An A/D converter performs analog-digital conversion of the input voltage (Vbat). The boost ratio setting unit sets the boost ratio based on a result of comparing an input voltage (Ddet) that has undergone analog-digital conversion, and the set voltage (Dset).

摘要翻译： 在以预定设定电压作为目标值进行输入电压（Vbat）的电压转换并输出转换后的电压的电源装置中，升压比设定部设定电荷泵电路的升压比（XCP） 基于输入电压（Vbat）和预定的设定电压。 电压调节单元是调节器电路，并且调整电压（Vx）使得电荷泵电路的输出电压（Vout）接近设定电压。 输出电压设定单元产生预定的设定电压作为数字值（Dset）。 A / D转换器对输入电压（Vbat）进行模数转换。 升压比设定单元根据比较经过模拟数字转换的输入电压（Ddet）和设定电压（Dset）的结果来设定升压比。

公开(公告)号：US20100149084A1

公开(公告)日：2010-06-17

申请号：US12088490

申请日：2006-10-18

申请人： Taisuke Chida

发明人： Taisuke Chida

IPC分类号： G09G3/36

CPC分类号： G09G3/3413 ,  G09G2310/0235 ,  G09G2320/0261 ,  G09G2320/064 ,  G09G2320/0666

摘要： The backlight device of the present invention is provided with a light emitting unit emitting light of N (N≧2) colors and a light emission control unit making the light emitting unit emit light of one of the N colors for each field. The light emission control unit varying, from one flame to the next, the order of light emission colors within each frame is designed for use in the backlight device and an image display device incorporating such a backlight device. Thus, it is possible to realize the backlight device and the image display device incorporating such a backlight device in which, irrespective of an image recognition period (a period in which an image is recognized during the movement of the viewpoint on a display), the continuous recognition of light of the same color is prevented during the movement of the viewpoint on a display.

摘要翻译： 本发明的背光装置设置有发出N（N≥2）种颜色的光的发光单元，以及使发光单元使每个场发出N种颜色之一的光的发光控制单元。 发光控制单元从一个火焰向下一个变化，每个框架内的发光颜色的顺序被设计用于背光装置和包含这种背光装置的图像显示装置。 因此，可以实现包含这样的背光装置的背光装置和图像显示装置，其中，不管图像识别周期（在显示器的视点的移动期间识别图像的周期）， 在视点在显示器上移动期间，防止对相同颜色的光的连续识别。

公开(公告)号：US07443327B2

公开(公告)日：2008-10-28

申请号：US11807539

申请日：2007-05-29

申请人： Taisuke Chida ,  Kunihiro Komiya

发明人： Taisuke Chida ,  Kunihiro Komiya

IPC分类号： H03M1/66

CPC分类号： H03M1/0612 ,  H03M1/745

摘要： Source potentials of n output transistors are fixed by common fixed voltage, and sources are connected to a current output terminal. A drain and a gate of an input transistor are commonly connected to the drains and the gates of the output transistors respectively. A first current-to-voltage conversion unit is connected onto the drain side of the input transistor to convert current Im2 flowing through the input transistor into voltage Vx1. A second current-to-voltage conversion unit converts reference current Iref into voltage Vx2. The voltages Vx1 and Vx2 are input to a first error amplifier, and the first error amplifier adjusts gate voltages of the input transistor and output transistors. n switches are provided on a path through which output of the first error amplifier reaches the gate of the output transistor. A control unit controls on/off of the switch according to a digital signal.

摘要翻译： n个输出晶体管的源极电位由公共固定电压固定，源极连接到电流输出端子。 输入晶体管的漏极和栅极分别连接到输出晶体管的漏极和栅极。 第一电流 - 电压转换单元连接到输入晶体管的漏极侧，以将流过输入晶体管的电流Im 2转换成电压Vx 1。 第二电流 - 电压转换单元将参考电流Iref转换成电压Vx 2。 电压Vx 1和Vx 2被输入到第一误差放大器，第一误差放大器调节输入晶体管和输出晶体管的栅极电压。 n个开关设置在第一误差放大器的输出到达输出晶体管的栅极的路径上。 控制单元根据数字信号控制开关的开/关。