公开(公告)号：US20060125758A1

公开(公告)日：2006-06-15

申请号：US11288742

申请日：2005-11-29

申请人： Kuni Yamamura ,  Michiru Senda ,  Ryoichi Yokoyama ,  Yasushi Miyajima ,  Toshihiko Tanaka

发明人： Kuni Yamamura ,  Michiru Senda ,  Ryoichi Yokoyama ,  Yasushi Miyajima ,  Toshihiko Tanaka

IPC分类号： G09G3/36

CPC分类号： G09G3/3688 ,  G09G3/2085

摘要： A driving circuit of an LCD display apparatus, which adjusts the sampling timing of a video signal. Driving signals from a driving IC and a reference power source are supplied via a flexible printed circuit FPC to an LCD panel. A horizontal clock signal is subjected to switching adjustment in a propagation delay adjustment circuit, which alternatively switches a delay amount of the horizontal clock signal between two levels, and the resulting horizontal clock signal subjected to the switching adjustment is then supplied to a horizontal shift register. The FPC generates a switching signal by branching from either a high potential voltage signal VDD or a low potential voltage signal VSS and supplies the switching signal to the propagation delay adjustment circuit. A phase switching circuit having a function similar to that of the propagation delay adjustment circuit may be provided within the driving IC.

摘要翻译： LCD显示装置的驱动电路，其调整视频信号的采样定时。 来自驱动IC和参考电源的驱动信号通过柔性印刷电路FPC提供给LCD面板。 水平时钟信号在传播延迟调整电路中进行切换调整，交替地将两个电平之间的水平时钟信号的延迟量切换，然后将经过切换调整的结果水平时钟信号提供给水平移位寄存器 。 FPC通过从高电位电压信号VDD或低电位电压信号VSS分支而产生开关信号，并将切换信号提供给传播延迟调节电路。 可以在驱动IC内设置具有与传播延迟调整电路类似的功能的相位切换电路。

公开(公告)号：US07324075B2

公开(公告)日：2008-01-29

申请号：US10857406

申请日：2004-05-28

申请人： Keiichi Sano ,  Koji Marumo ,  Masayuki Koga ,  Kenya Uesugi ,  Michiru Senda ,  Kuni Yamamura

发明人： Keiichi Sano ,  Koji Marumo ,  Masayuki Koga ,  Kenya Uesugi ,  Michiru Senda ,  Kuni Yamamura

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0876 ,  G09G2320/0233

摘要： When a switching TFT is switched on, a data voltage on a data line is stored in a storage capacitor as a gate voltage of a driver TFT. In this state, a voltage on a pulse drive line is caused to fall. AMOS type capacity element having a second electrode connected to a reference voltage is connected to a gate of the driver TFT. The MOS type capacity element is in an ON state before a fall of the pulse drive line and becomes an OFF state during the fall, and a capacitance changes at the switching of ON state to the OFF state. Therefore, the slope of fall of the gate voltage changes, and the gate voltage after the fall on the pulse drive line can be corrected corresponding to the variation in the threshold values among driver TFTs.

摘要翻译： 当开关TFT接通时，数据线上的数据电压作为驱动器TFT的栅极电压存储在存储电容器中。 在该状态下，使脉冲驱动线上的电压下降。 具有连接到参考电压的第二电极的AMOS型电容元件连接到驱动器TFT的栅极。 MOS电容元件在脉冲驱动线下降之前处于导通状态，并且在下降期间变为断开状态，并且电容在接通状态切换到关闭状态时改变。 因此，栅极电压的下降斜率发生变化，并且能够根据驱动TFT之间的阈值的变化来校正脉冲驱动线上的下降之后的栅极电压。

公开(公告)号：US20050017929A1

公开(公告)日：2005-01-27

申请号：US10857406

申请日：2004-05-28

申请人： Keiichi Sano ,  Koji Marumo ,  Masayuki Koga ,  Kenya Uesugi ,  Michiru Senda ,  Kuni Yamamura

发明人： Keiichi Sano ,  Koji Marumo ,  Masayuki Koga ,  Kenya Uesugi ,  Michiru Senda ,  Kuni Yamamura

IPC分类号： H01L51/50 ,  G09F9/30 ,  G09G3/20 ,  G09G3/30 ,  H01L27/32 ,  H05B33/00 ,  H05B33/14

CPC分类号： G09G3/3233 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0876 ,  G09G2320/0233

摘要： When a switching TFT is switched on, a data voltage on a data line is stored in a storage capacitor as a gate voltage of a driver TFT. In this state, a voltage on a pulse drive line is caused to fall. AMOS type capacity element having a second electrode connected to a reference voltage is connected to a gate of the driver TFT. The MOS type capacity element is in an ON state before a fall of the pulse drive line and becomes an OFF state during the fall, and a capacitance changes at the switching of ON state to the OFF state. Therefore, the slope of fall of the gate voltage changes, and the gate voltage after the fall on the pulse drive line can be corrected corresponding to the variation in the threshold values among driver TFTs.

摘要翻译： 当开关TFT接通时，数据线上的数据电压作为驱动器TFT的栅极电压存储在存储电容器中。 在该状态下，使脉冲驱动线上的电压下降。 具有连接到参考电压的第二电极的AMOS型电容元件连接到驱动器TFT的栅极。 MOS电容元件在脉冲驱动线下降之前处于导通状态，并且在下降期间变为断开状态，并且电容在接通状态切换到关闭状态时改变。 因此，栅极电压的下降斜率发生变化，并且能够根据驱动TFT之间的阈值的变化来校正脉冲驱动线上的下降之后的栅极电压。

公开(公告)号：US08823622B2

公开(公告)日：2014-09-02

申请号：US11933232

申请日：2007-10-31

申请人： Michiru Senda ,  Ryoichi Yokoyama

发明人： Michiru Senda ,  Ryoichi Yokoyama

IPC分类号： G09G3/36

CPC分类号： G09G3/3648 ,  G09G3/3614 ,  G09G3/3677 ,  G09G2310/0218 ,  G09G2310/08 ,  G09G2340/16

摘要： A liquid crystal display includes a plurality of gate lines having odd-numbered gate lines and even-numbered gate lines, a plurality of source lines, a first gate driver which drives the odd-numbered gate lines, a second gate driver which drives the even-numbered gate lines and a driving controller which outputs an overdriven image signal in at least one driving period of a plurality of driving periods and outputs a normal image signal in remaining driving periods of the plurality of driving periods. The overdriven image signal is obtained by adding an overdrive voltage to the normal image signal, and the overdrive voltage is set according to a level of the normal image signal.

摘要翻译： 液晶显示器包括具有奇数栅极线和偶数栅极线的多条栅极线，多条源极线，驱动奇数栅极线的第一栅极驱动器，驱动奇数栅极线的第二栅极驱动器 并且驱动控制器在多个驱动周期的至少一个驱动周期内输出过驱动图像信号，并且在多个驱动周期的剩余驱动周期中输出正常图像信号。 通过向正常图像信号添加过驱动电压来获得过驱动图像信号，并且根据正常图像信号的电平来设定过驱动电压。

公开(公告)号：US07839371B2

公开(公告)日：2010-11-23

申请号：US11768584

申请日：2007-06-26

申请人： Ryoichi Yokoyama ,  Michiru Senda ,  Tsutomu Uemoto

发明人： Ryoichi Yokoyama ,  Michiru Senda ,  Tsutomu Uemoto

IPC分类号： G09G3/36 ,  G02F1/1343

CPC分类号： G09G3/3659 ,  G09G3/3677 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2310/06 ,  G09G2320/0214 ,  G09G2320/0252

摘要： In a liquid crystal display device includes; a plurality of pixels arranged substantially in a matrix pattern; wherein each of the plurality of pixel includes; first and second thin film transistors including current paths connected to a source line in series, a storage capacitor line, a first capacitor connected between the first and second thin film transistors and connected to the storage capacitor line, a second capacitor connected between one of the source and the drain of the second thin film transistor and a pixel electrode and connected to the storage capacitor line, and a third capacitor including the pixel electrode, a common electrode, and a liquid crystal between the pixel electrode and the common electrode, wherein an overdrive voltage Vover satisfying equation Vover = C ⁢ ⁢ 1 C ⁢ ⁢ 2 + C ⁢ ⁢ lc · Vsig is added to a display signal voltage Vsig and a resultant voltage is applied to the source line.

摘要翻译： 在液晶显示装置中， 基本上以矩阵图案排列的多个像素; 其中所述多个像素中的每一个包括： 第一和第二薄膜晶体管，其包括串联连接到源极线的电流路径，辅助电容线，连接在第一和第二薄膜晶体管之间并连接到辅助电容线的第一电容器，连接在第一和第二薄膜晶体管中的一个之间的第二电容器 第二薄膜晶体管的源极和漏极以及与辅助电容线连接的像素电极，以及在像素电极和公共电极之间包括像素电极，公共电极和液晶的第三电容器，其中， 过驱动电压Vover满足方程式Vover = C ud 1 C ud 2 + C⁢lc·Vsig被加到显示信号电压Vsig上，并将合成电压施加到源极线。

公开(公告)号：US20050259062A1

公开(公告)日：2005-11-24

申请号：US11133882

申请日：2005-05-20

申请人： Michiru Senda ,  Koji Hirosawa ,  Ryoichi Yokoyama

发明人： Michiru Senda ,  Koji Hirosawa ,  Ryoichi Yokoyama

IPC分类号： G02F1/1362 ,  G09G3/36

CPC分类号： G02F1/1362

摘要： The level of a storage capacitor line changes between two types, an H level and an L level. As a result of this change, the voltage applied to a liquid crystal is shifted so that a sufficient voltage is applied to the liquid crystal to perform a display operation. Then, by changing the voltage value of the difference between a first level and a second level, the contrast and screen brightness are adjusted. Furthermore, the capacitances generated at the locations where the two storage capacitor lines and the data line intersect are set to be substantially the same.

摘要翻译： 存储电容线的电平在H电平和L电平两种类型之间变化。 作为这种变化的结果，施加到液晶的电压移位，使得向液晶施加足够的电压以进行显示操作。 然后，通过改变第一电平和第二电平之间的差的电压值，调整对比度和屏幕亮度。 此外，在两个存储电容线和数据线相交的位置处产生的电容被设置为基本相同。

公开(公告)号：US06950080B2

公开(公告)日：2005-09-27

申请号：US10122146

申请日：2002-04-15

申请人： Michiru Senda ,  Ryoichi Yokoyama

发明人： Michiru Senda ,  Ryoichi Yokoyama

IPC分类号： G02F1/133 ,  G09G3/20 ,  G09G3/32 ,  G09G3/36 ,  G09G000/32

CPC分类号： G09G3/2011 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3291 ,  G09G3/3648 ,  G09G3/3659 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2300/0857 ,  G09G2310/0251 ,  G09G2330/02 ,  G09G2330/021

摘要： A display device capable of analog and digital image display has a retaining circuit holding an image signal disposed for each of the pixel elements. In the memory operation mode, an output from an oscillation unit formed inside the display panel is supplied to the pixel element electrodes of the display. The on-resistance of an output transistor for the pixel electrode is higher than the on-resistance of thin film transistors of the inverters in the oscillation unit. In the memory operation mode, gate and drain lines are set at predetermined voltages and an output of a voltage booster circuit formed in the display panel is used as a reference voltage of the retaining circuit and used for switching a selection circuit selecting image display circuits.

摘要翻译： 能够进行模拟和数字图像显示的显示装置具有保持电路，其保持为每个像素元件设置的图像信号。 在存储器操作模式中，将形成在显示面板内的振荡单元的输出提供给显示器的像素元件电极。 用于像素电极的输出晶体管的导通电阻高于振荡单元中的反相器的薄膜晶体管的导通电阻。 在存储器操作模式中，栅极和漏极线被设置为预定电压，并且将形成在显示面板中的升压电路的输出用作保持电路的参考电压，并用于切换选择电路选择图像显示电路。

公开(公告)号：US08502765B2

公开(公告)日：2013-08-06

申请号：US11929260

申请日：2007-10-30

申请人： Ryoichi Yokoyama ,  Michiru Senda

发明人： Ryoichi Yokoyama ,  Michiru Senda

IPC分类号： G09G3/36

CPC分类号： G02F1/136213 ,  G09G3/3655 ,  G09G2300/0876 ,  G09G2320/0252 ,  G09G2320/0261

摘要： A liquid crystal display includes a plurality of pixels, each of which includes a thin film transistor (TFT), a gate line supplying a driving signal to a gate of the TFT of each pixel, a liquid crystal capacitor included in each pixel and connected to one terminal of the TFT in a corresponding pixel, a sub-capacitor line aligned in parallel to the gate line, a sub-capacitor included in each pixel and connected between one terminal of the TFT in a corresponding pixel and the sub-capacitor line, and a driving circuit having at least four voltages, selecting one of the voltages and supplying the selected voltage to the sub-capacitor line to drive the liquid crystal display in a state in which the liquid crystal capacitor is capacitively coupled to the sub-capacitor.

公开(公告)号：US08300165B2

公开(公告)日：2012-10-30

申请号：US12197090

申请日：2008-08-22

申请人： Ryoichi Yokoyama ,  Michiru Senda

发明人： Ryoichi Yokoyama ,  Michiru Senda

IPC分类号： G02F1/133

CPC分类号： G02F1/136213 ,  G02F2201/40 ,  G09G3/3655 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2300/0876 ,  G09G2320/0252

摘要： A liquid crystal display includes a pixel group including a first pixel having a first thin film transistor and a second pixel having a second thin film transistor. A gate line provides a driving signal to a gate of the first and second thin film transistors. A first storage capacitor line is arranged substantially parallel with the gate line and adjacent to one side of the first pixel. A second storage capacitor line is arranged substantially parallel with the gate line and adjacent to an opposite side of the first pixel. The liquid crystal display includes a first storage capacitor arranged in the first pixel and connected between the first thin film transistor and the first storage capacitor line. A second storage capacitor is arranged in the second pixel and is connected between the second thin film transistor and the second storage capacitor line.

摘要翻译： 液晶显示器包括像素组，其包括具有第一薄膜晶体管的第一像素和具有第二薄膜晶体管的第二像素。 栅极线向第一和第二薄膜晶体管的栅极提供驱动信号。 第一存储电容器线被布置成基本上与栅极线平行并且与第一像素的一侧相邻。 第二存储电容器线被布置成基本上与栅极线平行并且与第一像素的相反侧相邻。 液晶显示器包括布置在第一像素中并连接在第一薄膜晶体管和第一辅助电容线之间的第一存储电容器。 第二存储电容器布置在第二像素中并且连接在第二薄膜晶体管和第二辅助电容线之间。

公开(公告)号：US07755584B2

公开(公告)日：2010-07-13

申请号：US11930922

申请日：2007-10-31

申请人： Michiru Senda ,  Ryoichi Yokoyama

发明人： Michiru Senda ,  Ryoichi Yokoyama

IPC分类号： G02F1/135

CPC分类号： H02M3/073 ,  H02M1/36

摘要： A voltage boosting circuit performs variable frequency control that gradually increases frequencies of clock signals from a low frequency to a high frequency during a boosting operation period for which a low output voltage of a DC-DC converter when the power is turned on is boosted up to a predetermined voltage. Thus, the frequencies of clock signals may be set according to the boosting operation of the DC-DC converter. Consequently, the operation of the DC-DC converter may be stabilized until the stable operation period is performed after the DC-DC converter starts to operate.

摘要翻译： 升压电路执行可变频率控制，其在升压操作期间逐渐增加从低频到高频的时钟信号的频率，在该操作期间，当电源接通时，DC-DC转换器的低输出电压被提升到 预定电压。 因此，可以根据DC-DC转换器的升压操作来设置时钟信号的频率。 因此，DC-DC转换器的动作可以稳定，直到在DC-DC转换器开始工作之后执行稳定运行期间。