公开(公告)号：US07119802B2

公开(公告)日：2006-10-10

申请号：US10350421

申请日：2003-01-24

申请人： 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

发明人： 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

IPC分类号： G09G5/00

CPC分类号： H03F3/45941 ,  G09G3/3655 ,  G09G2330/022 ,  H03F3/45946 ,  H03F2203/45622 ,  H03F2203/45732

摘要： 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.

摘要翻译： 提供了可以以低功率驱动的紧凑型驱动电压控制器。 可以以低功率驱动的紧凑型驱动电压控制器包括高输出运算放大器和用于向诸如液晶显示面板的负载提供驱动电压VcomH，VcomL的低输出运算放大器，用于在 运算放大器的输出，用于产生要提供给低输出运算放大器的非反相输入端的设定电压的低电压设置运算放大器，包括电流镜电路和钳位电路的设定电压发生器， 偏置电流控制器，用于以预定定时控制在每个运算放大器中流动的偏置电流;以及定时控制器，用于控制输出开关的转换定时。

公开(公告)号：US20050073490A1

公开(公告)日：2005-04-07

申请号：US10933411

申请日：2004-09-03

申请人： Tomokazu Kojima ,  Tsutomu Sakakibara ,  Tooru Suyama

发明人： Tomokazu Kojima ,  Tsutomu Sakakibara ,  Tooru Suyama

IPC分类号： G02F1/133 ,  G09G3/18 ,  G09G3/20 ,  G09G3/36 ,  H02M3/155

CPC分类号： G09G3/3696 ,  G09G3/3611 ,  G09G3/3648 ,  G09G2330/021

摘要： 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.

摘要翻译： 根据本发明的液晶显示装置包括：液晶面板11; 源极驱动器12，用于通过向液晶面板11施加电压来控制灰度级; 用于通过向源极驱动器12提供电流来驱动源极驱动器12的DC-DC电源13; 用于向源极驱动器12提供用于控制灰度级的信号的控制器14; 以及用于计算来自控制器14的信号的变化量的变化计算器15.在DC-DC电源13中，要提供给源极驱动器12的电流根据由信号驱动器12计算的信号的变化量而变化 变化计算器15。

公开(公告)号：US07397471B2

公开(公告)日：2008-07-08

申请号：US10933411

申请日：2004-09-03

申请人： Tomokazu Kojima ,  Tsutomu Sakakibara ,  Tooru Suyama

发明人： Tomokazu Kojima ,  Tsutomu Sakakibara ,  Tooru Suyama

IPC分类号： G09G3/36

CPC分类号： G09G3/3696 ,  G09G3/3611 ,  G09G3/3648 ,  G09G2330/021

摘要： 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.

摘要翻译： 根据本发明的液晶显示装置包括：液晶面板11; 源极驱动器12，用于通过向液晶面板11施加电压来控制灰度级; 用于通过向源极驱动器12提供电流来驱动源极驱动器12的DC-DC电源13; 用于向源极驱动器12提供用于控制灰度级的信号的控制器14; 以及用于计算来自控制器14的信号的变化量的变化计算器15。 在DC-DC电源13中，要提供给源极驱动器12的电流根据由变化计算器15计算出的信号的变化量而变化。

公开(公告)号：US20070145958A1

公开(公告)日：2007-06-28

申请号：US11641876

申请日：2006-12-20

申请人： Kenji Miyake ,  Tomokazu Kojima ,  Takahito Kushima ,  Tsutomu Sakakibara

发明人： Kenji Miyake ,  Tomokazu Kojima ,  Takahito Kushima ,  Tsutomu Sakakibara

IPC分类号： G05F1/10

CPC分类号： H02M3/07 ,  H02M2003/072

摘要： A control unit performs the first-third controls. The first control controls a group of switch elements so that a step-up voltage is supplied to a voltage output terminal by a pumping action of a step-up voltage accumulating capacity element by applying the reference power source voltage to the reference power source voltage accumulating capacity element in an inverse direction, after execution of an electric charge accumulating action with the reference power source voltage in the reference power source voltage accumulating capacity element. The second control controls the group of switching elements so as to provide a dead-time period, during which the reference power source and the reference power source voltage accumulating element are disconnected, between a period of the electric charge accumulating action and a period of the pumping action and between the period of pumping action and the period of electric charge accumulating action. The third control achieves such a control in the first and second step-up circuit units alternately and cyclically that the electric charge accumulating action or the pumping action in one of the first and second step-up circuit units is carried out, when the other is in the dead-time period.

摘要翻译： 控制单元执行第三至第三控制。 第一控制器控制一组开关元件，使得通过将参考电源电压施加到参考电源电压累加的升压电压累积电容元件的泵送作用，将升压电压提供给电压输出端子 在参考电源电压累积电容元件中执行与参考电源电压的电荷积累动作之后，反向的电容元件。 第二控制器控制开关元件组，以便在电荷累积动作的周期与电荷累积动作的期间之间，提供参考电源和基准电源电压蓄积元件断开的死区时间 泵送动作之间和泵送动作期间与电荷累积动作期间。 第三控制在第一和第二升压电路单元中交替地和循环地实现这样的控制，即当第一和第二升压电路单元中的另一个是第一和第二升压电路单元中的一个时，进行电荷累积动作或泵送动作 在死亡时期。

公开(公告)号：US07385581B2

公开(公告)日：2008-06-10

申请号：US11071168

申请日：2005-03-04

申请人： Tomokazu Kojima ,  Tsutomu Sakakibara

发明人： Tomokazu Kojima ,  Tsutomu Sakakibara

IPC分类号： G09G3/36

CPC分类号： G09G3/3666 ,  G09G3/3696

摘要： A driving voltage control device includes a first to fourth capacitor, and an output section. In the first mode, the first capacitor receives a first voltage and stores a corresponding amount of charge, the second capacitor receives a second voltage and stores a corresponding amount of charge, and the output section supplies either one of a voltage according to the amount of charge stored in the first capacitor or second capacitor to a first output node according to a predetermined timing. In the second mode, the third capacitor receives a third voltage and stores a corresponding amount of charge, the fourth capacitor receives a fourth voltage and stores a corresponding amount of charge, and the output section supplies either one of a voltage according to the amount of charge stored in the third capacitor or fourth capacitor to a second output node according to a predetermined timing.

摘要翻译： 驱动电压控制装置包括第一至第四电容器和输出部分。 在第一模式中，第一电容器接收第一电压并存储相应的电荷量，第二电容器接收第二电压并存储相应的电荷量，并且输出部分提供根据 根据预定定时，存储在第一电容器或第二电容器中的电荷到第一输出节点。 在第二模式中，第三电容器接收第三电压并存储相应的电荷量，第四电容器接收第四电压并存储相应的电荷量，并且输出部分提供根据 根据预定定时，存储在第三电容器或第四电容器中的电荷到第二输出节点。

公开(公告)号：US20050200586A1

公开(公告)日：2005-09-15

申请号：US11071168

申请日：2005-03-04

申请人： Tomokazu Kojima ,  Tsutomu Sakakibara

发明人： Tomokazu Kojima ,  Tsutomu Sakakibara

IPC分类号： G02F1/133 ,  G09G3/18 ,  G09G3/36

CPC分类号： G09G3/3666 ,  G09G3/3696

摘要： A driving voltage control device includes a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, and an output section. In the first mode, the first capacitor receives a first voltage and stores an amount of charge according to a voltage value of the first voltage, the second capacitor receives a second voltage and stores an amount of charge according to a voltage value of the second voltage, and the output section supplies either one of a voltage according to the amount of charge stored in the first capacitor and a voltage according to the amount of charge stored in the second capacitor to a first output node according to a predetermined timing. In the second mode, the third capacitor receives a third voltage and stores an amount of charge according to a voltage value of the third voltage, the fourth capacitor receives a fourth voltage and stores an amount of charge according to a voltage value of the fourth voltage, and the output section supplies either one of a voltage according to the amount of charge stored in the third capacitor and a voltage according to the amount of charge stored in the fourth capacitor to a second output node according to a predetermined timing.

摘要翻译： 驱动电压控制装置包括第一电容器，第二电容器，第三电容器，第四电容器和输出部分。 在第一模式中，第一电容器接收第一电压并根据第一电压的电压值存储电荷量，第二电容器接收第二电压，并根据第二电压的电压值存储电荷量 并且输出部分根据预定定时向第一输出节点提供根据存储在第一电容器中的电荷量的电压和根据存储在第二电容器中的电荷量的电压中的一个。 在第二模式中，第三电容器接收第三电压并根据第三电压的电压值存储电荷量，第四电容器接收第四电压，并根据第四电压的电压值存储电荷量 并且根据预定定时，输出部分将根据存储在第三电容器中的电荷量的电压和根据存储在第四电容器中的电荷量的电压中的任一个提供给第二输出节点。

公开(公告)号：US07772813B2

公开(公告)日：2010-08-10

申请号：US11639280

申请日：2006-12-15

申请人： Tomokazu Kojima ,  Minoru Honda

发明人： Tomokazu Kojima ,  Minoru Honda

IPC分类号： G05F1/00

CPC分类号： H03F3/45475 ,  H03F1/56 ,  H03F2203/45674

摘要： An operational amplifier generates a power supply potential from a reference potential. An impedance adjuster adjusts an output impedance of the operational amplifier in accordance with a control signal. A charge accumulator accumulates an output charge of the operational amplifier whose impedance is adjusted by the impedance adjuster. A comparator compares an output voltage of the operational amplifier before the impedance adjustment by the impedance adjuster and the output voltage of the operational amplifier after the impedance adjustment by the impedance adjuster to each other, and the comparator further generates the control signal in accordance with a result of the comparison so as to output the generated control signal to the impedance adjuster.

摘要翻译： 运算放大器从参考电位产生电源电位。 阻抗调节器根据控制信号调整运算放大器的输出阻抗。 电荷累加器累积运算放大器的输出电荷，其阻抗由阻抗调节器调节。 比较器在通过阻抗调节器进行的阻抗调整之后，将由阻抗调节器进行的阻抗调整之前的运算放大器的输出电压与运算放大器的输出电压进行比较，并且比较器进一步根据 比较结果，将所生成的控制信号输出到阻抗调节器。

公开(公告)号：US07755339B2

公开(公告)日：2010-07-13

申请号：US11806716

申请日：2007-06-04

申请人： Tomokazu Kojima ,  Takahito Kushima

发明人： Tomokazu Kojima ,  Takahito Kushima

IPC分类号： G05F1/56

CPC分类号： G05F1/46

摘要： A regulator for generating, from a first power supply voltage exceeding the breakdown voltage of a low voltage transistor block, a second power supply voltage lower than or equal to the breakdown voltage of the low voltage transistor block, includes an operational amplifier including low voltage transistors and high voltage transistors. An operational amplifier including only low voltage transistors can be employed.

摘要翻译： 一种用于从超过低压晶体管块的击穿电压的第一电源电压产生低于或等于低压晶体管块的击穿电压的第二电源电压的调节器包括：运算放大器，包括低压晶体管 和高压晶体管。 可以使用仅包括低电压晶体管的运算放大器。

公开(公告)号：US20080022247A1

公开(公告)日：2008-01-24

申请号：US11812416

申请日：2007-06-19

申请人： Tomokazu Kojima ,  Munehiko Ogawa

发明人： Tomokazu Kojima ,  Munehiko Ogawa

IPC分类号： G06F17/50

CPC分类号： G06F17/5072

摘要： The present invention is provided with a plural cell including a transistor pair. The plural cells are arranged at equal intervals so as to configure a cell group. A inter-cell distance between a transistor in one of the cell and a transistor the other cell in each of adjacent cells in the cell group is equal to a intra-cell distance between one of the transistor and the other transistor in the transistor pair.

摘要翻译： 本发明提供有包括晶体管对的多个单元。 以等间隔配置多个单元，以配置单元组。 单元组中的一个晶体管和单元组中每个相邻单元中的另一个单元的晶体管之间的单元间距离等于晶体管与晶体管对中的一个晶体管之间的晶胞间距离。

公开(公告)号：US07420552B2

公开(公告)日：2008-09-02

申请号：US11076898

申请日：2005-03-11

申请人： Takahito Kushima ,  Tomokazu Kojima

发明人： Takahito Kushima ,  Tomokazu Kojima

IPC分类号： G06F3/038 ,  G09G5/00

CPC分类号： G09G3/3614 ,  G09G3/3696 ,  G09G2310/027

摘要： A driving voltage control device includes: a first differential amplifier circuit for receiving a first input voltage and outputting a first output voltage; a second differential amplifier circuit for receiving a second input voltage and outputting a second output voltage; a control section for selecting one of a first mode and a second mode; and an output section for supplying the first output voltage output from the first differential amplifier circuit to an output node when the first mode is selected by the control section and supplying the second output voltage output from the second differential amplifier circuit to the output node when the second mode is selected by the control section. When the first mode is selected, the control section increases a driving power of the first differential amplifier circuit.

摘要翻译： 驱动电压控制装置包括：第一差分放大器电路，用于接收第一输入电压并输出第一输出电压; 第二差分放大器电路，用于接收第二输入电压并输出第二输出电压; 用于选择第一模式和第二模式之一的控制部分; 以及输出部，用于当由控制部选择第一模式时将从第一差分放大器电路输出的第一输出电压提供给输出节点，并且当第二差分放大器电路输出的第二输出电压输出到输出节点时， 第二模式由控制部选择。 当选择第一模式时，控制部分增加第一差分放大器电路的驱动功率。