公开(公告)号：US20070097063A1

公开(公告)日：2007-05-03

申请号：US11640576

申请日：2006-12-18

申请人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Toshikazu Maekawa

发明人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Toshikazu Maekawa

IPC分类号： G09G3/36

CPC分类号： G09G3/2011 ,  G09G3/2018 ,  G09G3/2081 ,  G09G3/30 ,  G09G3/3688 ,  G09G2310/027 ,  H03M1/68 ,  H03M1/687 ,  H03M1/76 ,  H03M1/765

摘要： A D/A converter circuit according to the present invention allows adaptation to multi-gradation by reducing the circuit size. A reference-voltage-selection-type D/A converter circuit that converts 4-bit digital data into an analog signal having 16 voltage values V1 to V16 generates in a reference voltage generating circuit (11) four reference voltages Vref1 to Vref4 having four voltage values in time series and generates a selection signal in a selection signal generating circuit (12) based on low-order two bits of the digital data. A selection circuit (13) selects by time-sharing one of the four voltage values of each of the reference voltages Vref1 to Vref4 based on this selection signal and outputs the analog signal of the selected voltage value to an output line (15).

摘要翻译： 根据本发明的D / A转换器电路允许通过减小电路尺寸来适应多层次。 将参考电压选择型D / A转换器电路，将4位数字数据转换为具有16个电压值V 1至V 16的模拟信号，在参考电压产生电路（11）中产生四个参考电压Vref 1至Vref 4具有时间序列中的四个电压值，并且基于数字数据的低位二位在选择信号发生电路（12）中产生选择信号。 选择电路（13）通过基于该选择信号分配参考电压Vref 1至Vref 4中的每一个的四个电压值之一来选择，并将所选择的电压值的模拟信号输出到输出线（15） 。

公开(公告)号：US20070063759A1

公开(公告)日：2007-03-22

申请号：US11601911

申请日：2006-11-18

申请人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Hiroaki Ichikawa

发明人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Hiroaki Ichikawa

IPC分类号： H03L5/00

CPC分类号： G09G3/3688 ,  G09G3/3655 ,  G09G2300/0408 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2310/0294 ,  H03K3/356165

摘要： In the structure in which an input signal IN and a reverse-phase signal XIN thereof are externally input, an external IC is required for generating the reverse-phase signal XIN, and the number of required input signal terminals is two. A level shift circuit formed on an insulating substrate, such as a glass substrate, using transistors with large characteristic variations, for example, TFTs with high thresholds Vth, includes a complementary generator unit (11) driven by a first power supply (VCC) having an amplitude voltage equal to the amplitude voltage of a signal externally input from the substrate to generate complementary signals from a single-phase input signal IN. The complementary signals generated by the complementary generator unit (11) are level-shifted by a level shift unit (14). Therefore, it is no longer necessary to externally input the reverse-phase signal XIN.

摘要翻译： 在外部输入输入信号IN和反相信号XIN的结构中，需要外部IC来产生反相信号XIN，所需输入信号端子数为2。 使用具有大特性变化的晶体管等绝缘基板（例如玻璃基板）形成的电平移动电路，例如具有高阈值Vth的TFT，包括由第一电源（VCC）驱动的互补发电单元（11），第一电源（VCC） 幅度电压等于从衬底外部输入的信号的幅度电压，以产生来自单相输入信号IN的互补信号。 由互补发生器单元（11）产生的互补信号由电平移位单元（14）进行电平移位。 因此，不再需要外部输入反相信号XIN。

公开(公告)号：US20070057898A1

公开(公告)日：2007-03-15

申请号：US10557799

申请日：2004-05-14

申请人： Yoshiharu Nakajima ,  Yoshitoshi Kida

发明人： Yoshiharu Nakajima ,  Yoshitoshi Kida

IPC分类号： G09G3/36

CPC分类号： H02M3/073 ,  H02M2003/076

摘要： A supply voltage conversion circuit allowing fabrication of a charge pump circuit having a large current capability with a small area is provided. In a charge pump DC-DC converter (10) for converting a supply voltage VDD1 to a supply voltage VDD2, a level shifter (12) implements amplitude conversion to convert from a control pulse with amplitude of VSS-VDD1 to a control pulse with amplitude of VSS-VDD2. By using the control pulse having the converted amplitude as a pumping pulse, a flying capacitor (C11) is charged/discharged by MOS transistors (Qp11), and (Qn11) of a charge pump circuit (11), and switching of MOS transistors (Qn12), and (Qp12) coupled to the output of the flying capacitor (C11) is controlled.

摘要翻译： 提供了允许制造具有小面积的具有大电流能力的电荷泵电路的电源电压转换电路。 在用于将电源电压VDD 1转换为电源电压VDD 2的电荷泵DC-DC转换器（10）中，电平转换器（12）进行幅度转换，以将具有VSS-VDD1幅度的控制脉冲转换为控制 具有VSS-VDD幅度的脉冲。通过使用具有转换幅度的控制脉冲作为泵浦脉冲，通过MOS晶体管（Qp 11）和（Qn 11）对充电电容（C 11）进行充电/放电 泵电路（11）和耦合到飞跨电容器（C 11）的输出的MOS晶体管（Qn 12）和（Qp 12）的切换被控制。

公开(公告)号：US20060119627A1

公开(公告)日：2006-06-08

申请号：US11295760

申请日：2005-12-06

申请人： Mizuki Yamada ,  Yoshiharu Nakajima ,  Yoshitoshi Kida

发明人： Mizuki Yamada ,  Yoshiharu Nakajima ,  Yoshitoshi Kida

IPC分类号： G09G5/02

CPC分类号： G09G3/2066 ,  G09G3/3655

摘要： A display device and display method are provided. The display device and the display method can prevent generation of noise in delta array pixels of an FRC method, and able to prevent a lowering of an image quality, that is, a display device of predetermined array pixels displaying a (2n+1) gradation by alternately displaying a 2n gradation and a (2n+2) gradation, comprising a modulation pattern generation circuit for generating a spatial/temporal modulation pattern switching a temporal modulation pattern every frame (F) and changing an order of application of a spatial modulation pattern every NF (N is an even number); a data processing circuit for modulating image data in accordance with the modulation pattern generated by the modulation pattern generation circuit; and a drive circuit for driving the display in accordance with the modulated data of the data processing circuit.

公开(公告)号：US20060066549A1

公开(公告)日：2006-03-30

申请号：US11231872

申请日：2005-09-22

申请人： Mizuki Yamada ,  Yoshiharu Nakajima ,  Hiroaki Ichikawa ,  Yoshitoshi Kida

发明人： Mizuki Yamada ,  Yoshiharu Nakajima ,  Hiroaki Ichikawa ,  Yoshitoshi Kida

IPC分类号： G09G3/36

CPC分类号： G09G3/3688 ,  G09G3/2025 ,  G09G2310/027

摘要： A flat display apparatus and a driving method therefor are disclosed wherein an image having a pseudo gradation is displayed and peripheral circuits for a driving method based on frame rate control can be formed integrally on an insulating substrate to assure reliable operation. In the flat display apparatus, image data are distributed into a plurality of systems in response to a variation pattern of a gradation of pixels such that variation patterns of the gradations of corresponding pixels in each system are same as each other, and the image data of the systems are outputted. Then, for each system, in response to a logic value of lower order side bit of the image data, a logic value of the signal pattern indicating the variation pattern is added to the high order side bits to modulate the image data of the systems to produce modulation data.

摘要翻译： 公开了一种平面显示装置及其驱动方法，其中显示具有伪灰度的图像，并且可以在绝缘基板上一体地形成基于帧速率控制的驱动方法的外围电​​路，以确保可靠的操作。 在平面显示装置中，响应于像素的灰度的变化模式，将图像数据分散到多个系统中，使得每个系统中相应像素的灰度的变化图案彼此相同，并且图像数据 系统被输出。 然后，对于每个系统，响应于图像数据的低阶侧位的逻辑值，将指示变化模式的信号模式的逻辑值添加到高阶侧位，以将系统的图像数据调制为 产生调制数据。

公开(公告)号：US06985128B1

公开(公告)日：2006-01-10

申请号：US10089230

申请日：2000-07-30

申请人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Naoshi Goto ,  Toshikazu Maekawa ,  Hideo Kataoka

发明人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Naoshi Goto ,  Toshikazu Maekawa ,  Hideo Kataoka

IPC分类号： G09G3/36

CPC分类号： G09G3/006 ,  G02F1/13452 ,  G02F1/13454 ,  G02F2001/136254 ,  G09G3/3688 ,  G09G2300/0408 ,  G09G2330/12

摘要： The present invention is directed to a liquid crystal display panel to which an external horizontal drive circuit is connected in a TAB, COG, or other form. The liquid crystal display panel is capable of performing aging by a substrate alone by connecting the external drive circuit. The liquid crystal display panel includes an active matrix display area, a vertical drive circuit, and a horizontal aging circuit that supplies signals to a plurality of source lines at one time provided on a substrate. The medium-sized to small-sized active matrix type liquid crystal display apparatus is used in a PDA applications, among other, and is capable of being produced at a high quality and a low cost without using a time sharing driving method. The active matrix type liquid crystal display apparatus is provided with a horizontal drive circuit as an external circuit, wherein a vertical drive circuit is formed integrally with a liquid crystal display area on a glass substrate by using low temperature PolySi TFTs. The horizontal drive circuit is connected to a liquid crystal display panel substrate by COG. Output terminals of a driver IC constituting the horizontal drive circuit and source lines Ls are in a one-to-one correspondence.

摘要翻译： 本发明涉及一种以TAB，COG或其他形式连接外部水平驱动电路的液晶显示面板。 液晶显示面板仅通过连接外部驱动电路即可通过基板进行老化。 液晶显示面板包括有源矩阵显示区域，垂直驱动电路和向基板上一次提供信号到多条源极线的水平老化电路。 中型到小型的有源矩阵型液晶显示装置除了使用在PDA应用中，并且能够以高质量和低成本生产，而不需要使用分时驱动方法。 有源矩阵型液晶显示装置设置有作为外部电路的水平驱动电路，其中垂直驱动电路通过使用低温多晶硅TFT与玻璃基板上的液晶显示区域一体地形成。 水平驱动电路通过COG连接到液晶显示面板基板。 构成水平驱动电路的驱动器IC和源极线Ls的输出端子一一对应。

公开(公告)号：US20090251445A1

公开(公告)日：2009-10-08

申请号：US12418301

申请日：2009-04-03

申请人： Daisuke ITO ,  Yoshitoshi Kida ,  Takeya Takeuchi ,  David Pusey ,  Peter Shadwell ,  Shunsuke Noichi

发明人： Daisuke ITO ,  Yoshitoshi Kida ,  Takeya Takeuchi ,  David Pusey ,  Peter Shadwell ,  Shunsuke Noichi

IPC分类号： G06F3/038

CPC分类号： G09G3/3648 ,  G09G2320/0261 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435

摘要： A method of driving a liquid crystal display and a drive circuit for a liquid crystal display module wherein the liquid crystal display of the liquid crystal display module is controlled and the image data displayed by the liquid crystal cells is refreshed. Received frames of image data are analysed to determine if individual frames of image data have characteristics prone to showing flicker. The refresh rate is reduced if the image analysis determines that the frames received of image data do not have characteristics prone to showing flicker.

摘要翻译： 驱动液晶显示器的方法和用于液晶显示模块的驱动电路，其中液晶显示模块的液晶显示器被控制并且由液晶单元显示的图像数据被刷新。 分析接收到的图像数据帧以确定图像数据的单个帧是否具有易于显示闪烁的特征。 如果图像分析确定接收到的图像数据的帧不具有易于显示闪烁的特征，则刷新率降低。

公开(公告)号：US08456398B2

公开(公告)日：2013-06-04

申请号：US12418319

申请日：2009-04-03

申请人： Daisuke Ito ,  Yoshitoshi Kida ,  Takeya Takeuchi ,  David Pusey ,  Peter Shadwell

发明人： Daisuke Ito ,  Yoshitoshi Kida ,  Takeya Takeuchi ,  David Pusey ,  Peter Shadwell

IPC分类号： G09G3/36

CPC分类号： G09G3/3655 ,  G02F2001/134318 ,  G09G3/3614 ,  G09G2300/0426 ,  G09G2320/0209 ,  G09G2330/021

摘要： A liquid crystal display module including a liquid crystal display having a plurality of liquid crystal cells, a plurality of switches and a common connection, each liquid crystal cell being connected between a respective switch and a common connection. The common connection includes strips, each extending in a first direction and the strips being arranged side-by-side in a second direction. The liquid crystal cells are arranged in rows, each row being along and connected to a strip. The liquid crystal display has gate lines, each gate line operating a respective plurality of the switches. For dot inversion, each gate operates switches connected to respective liquid crystal cells of two adjacent rows. For each row, a first set of alternate liquid crystal cells are connected to respective switches operated by a respective gate line and a second set of interspersed liquid crystal cells are connected to respective switches operated by another respective gate line.

摘要翻译： 一种液晶显示模块，包括具有多个液晶单元的液晶显示器，多个开关和公共连接，每个液晶单元连接在相应的开关和公共连接之间。 公共连接包括每个沿第一方向延伸的条，并且条沿第二方向并排布置。 液晶单元排列成行，每排沿着条带连接。 液晶显示器具有栅极线，每个栅极线操作相应的多个开关。 对于点反转，每个栅极操作连接到两个相邻行的相应液晶单元的开关。 对于每行，第一组备用液晶单元连接到由相应的栅极线操作的各个开关，并且第二组散布的液晶单元连接到由另一个相应的栅极线操作的各个开关。

公开(公告)号：US08355014B2

公开(公告)日：2013-01-15

申请号：US12467715

申请日：2009-05-18

申请人： Daisuke Ito ,  Yoshitoshi Kida ,  Takeya Takeuchi ,  David Pusey ,  Peter Shadwell ,  Shunsuke Noichi

发明人： Daisuke Ito ,  Yoshitoshi Kida ,  Takeya Takeuchi ,  David Pusey ,  Peter Shadwell ,  Shunsuke Noichi

IPC分类号： G06F3/038

CPC分类号： G09G3/3648 ,  G09G3/3406 ,  G09G2300/0809 ,  G09G2300/0876 ,  G09G2320/0295 ,  G09G2320/041 ,  G09G2320/0626 ,  G09G2330/06 ,  G09G2360/144

摘要： An ambient light detection device for use with a liquid crystal display having an array of liquid crystal cells, each liquid cell having at least one transistor for selectively connecting that liquid crystal cell to a signal line and each transistor having a gate connected to a gate line and having a gate supply line selectively connectable to the gate line for turning off the gates. The device includes a current measuring circuit configured to measure the current flowing in the gate supply line as a result of gate leakage current in the gates to which the gate supply line is connected and a controller connected to the measuring circuit and configured to calculate, from the measured current, the level of ambient light reaching the gates.

摘要翻译： 一种与具有液晶单元阵列的液晶显示器一起使用的环境光检测装置，每个液晶单元具有至少一个晶体管，用于选择性地将该液晶单元连接到信号线，并且每个晶体管具有连接到栅极线的栅极 并且具有可选择地连接到栅极线的栅极电源线，用于关闭栅极。 该装置包括电流测量电路，其被配置为测量由栅极电源线连接到的栅极中的栅极泄漏电流而在栅极电源线中流动的电流，以及连接到测量电路的控制器，并被配置为从 测量的电流，到达门的环境光的水平。

公开(公告)号：US08179392B2

公开(公告)日：2012-05-15

申请号：US12348234

申请日：2009-01-02

申请人： Yoshitoshi Kida ,  Jarupoonphol Werapong ,  Daisuke Ito ,  Takeya Takeuchi

发明人： Yoshitoshi Kida ,  Jarupoonphol Werapong ,  Daisuke Ito ,  Takeya Takeuchi

IPC分类号： G06F3/038

CPC分类号： G09G3/3688 ,  G09G3/3648 ,  G09G3/3655 ,  G09G2310/0251 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0252 ,  G09G2320/041

摘要： A driving circuit and a method of driving a liquid crystal display having an array of liquid crystal cells connected to a common line, a plurality of gate lines and a plurality of signal lines, each gate line being arranged to selectively enable a respective set of the liquid crystal cells such that signal lines connected to respective liquid crystal cells of a set can be used to charge respective liquid crystal cells of that set when that set is enabled by the respective gate line. At least some of the signal lines are selectively driven with the maximum level and the voltage on the at least some of the signal lines is monitored such that driving of the at least some of the signal lines with the maximum level ceases when the monitored voltage reaches a predetermined target value intermediate the minimum level and the maximum level.

摘要翻译： 驱动电路和驱动液晶显示器的方法，液晶显示器具有连接到公共线，多条栅极线和多条信号线的液晶单元阵列，每条栅极线被布置成选择性地使能相应的一组 液晶单元，使得连接到一组的各个液晶单元的信号线可以用于对该组的各个液晶单元进行充电，当该组由相应的栅极线使能时。 至少一些信号线被选择性地以最大电平驱动，并且监视至少一些信号线上的电压，使得当所监视的电压到达时，具有最大电平的至少一些信号线的驱动停止 在最小水平和最大水平之间的预定目标值。