公开(公告)号：US07400320B2

公开(公告)日：2008-07-15

申请号：US10734300

申请日：2003-12-15

申请人： Yoshiharu Nakajima ,  Toshikazu Maekawa

发明人： Yoshiharu Nakajima ,  Toshikazu Maekawa

IPC分类号： G09G5/00

CPC分类号： G09G3/2011 ,  G09G3/3688 ,  G09G2300/0408 ,  G09G2310/027 ,  G09G2310/0281 ,  G09G2310/0286 ,  G09G2310/0289 ,  G09G2310/0294 ,  G09G2310/06 ,  G09G2330/021 ,  G11C19/00 ,  G11C19/28 ,  G11C27/02 ,  H03K3/35613 ,  H03K19/018521 ,  H03M1/76

摘要： This invention relates to a digital/analog converter circuit, a level shift circuit, a shift-register containing this level shift circuit, a sampling latch circuit and a latch circuit as well as a liquid crystal display (LCD) device. The LCD device includes an integrated drive circuit integrated and a digital/analog converter circuit. The digital/analog converter circuit has a matrix of polysilicon thin film transistors positioned on the substrate, as switching devices for the pixels. The shift register includes a level shift circuit and a sampling latch circuit These circuits may be incorporated into a single scanning type structural circuit with the drive circuit-integrated LCD device to provide an LCD panel with a narrow picture frame, stable level shift operation, stable sampling & latch operation in a circuit having an extremely small number of components, low power consumption and a small surface area.

摘要翻译： 本发明涉及数字/模拟转换器电路，电平移位电路，包含该电平移位电路的移位寄存器，采样锁存电路和锁存电路以及液晶显示器（LCD）装置。 LCD装置包括集成的驱动电路和数字/模拟转换器电路。 数字/模拟转换器电路具有位于衬底上的多晶硅薄膜晶体管的矩阵，作为用于像素的开关器件。 移位寄存器包括电平移位电路和采样锁存电路这些电路可以与驱动电路集成的LCD器件并入单个扫描型结构电路，以提供具有窄画面的LCD面板，稳定的电平移位操作，稳定的 具有极小数量的部件，低功耗和小的表面积的电路中的采样和锁存操作。

公开(公告)号：US07250941B2

公开(公告)日：2007-07-31

申请号：US10484994

申请日：2003-05-06

申请人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Toshikazu Maekawa

发明人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Toshikazu Maekawa

IPC分类号： G09G5/00

CPC分类号： G06F1/3203 ,  G06F1/324 ,  G09G3/3648 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0408 ,  G09G2300/08 ,  G09G2310/0267 ,  G09G2310/027 ,  G09G2330/021 ,  Y02D10/126

摘要： A timing generating circuit with low power consumption and a small layout area, a display apparatus including the timing generating circuit as one peripheral driving circuit, and a portable terminal including the display apparatus as a display output section are provided. In the timing generating circuit, which is formed on an insulating substrate and generates output pulses SRFF1out to SRFFnout having different frequencies based on a master clock MCK, a clock generating circuit (11) generates an operating clock having a lower frequency than the master clock MCK frequency. Then, a counter section (12) operates based on this operating clock and successively outputs shifted pulses S/R1out to S/Rmount from shift registers (121-1) to (121-m). An output pulse generating section (13) generates output pulses SF1out to SFnout based on combinations of the shifted pulses S/R1out to S/Rmount.

摘要翻译： 具有低功耗和小布局区域的定时发生电路，包括作为一个外围驱动电路的定时发生电路的显示装置和包括作为显示输出部分的显示装置的便携式终端。 在定时发生电路中，形成在绝缘衬底上并基于主时钟MCK产生具有不同频率的输出脉冲SRFF1至SRFFnout，时钟发生电路（11）产生频率低于主器件的工作时钟 时钟MCK频率。 然后，基于该工作时钟，计数部（12）进行动作，从移位寄存器（121-1）〜（121-m）依次输出移位脉冲S / R 1〜S / Rmount。 输出脉冲生成部（13）根据移位脉冲S / R 1 out〜S / R mount的组合，生成输出脉冲SF1〜SFnout。

公开(公告)号：US07209132B2

公开(公告)日：2007-04-24

申请号：US10485280

申请日：2003-05-30

申请人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Toshikazu Maekawa

发明人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Toshikazu Maekawa

IPC分类号： G09G5/00

CPC分类号： G09G3/3648 ,  G09G3/3655 ,  G09G3/3688 ,  G09G2300/0876 ,  G09G2310/0245 ,  G09G2310/027 ,  G09G2310/06 ,  G09G2310/063 ,  G09G2320/0204 ,  G09G2320/0219 ,  G09G2320/0257 ,  G09G2330/026 ,  G09G2330/027

摘要： A liquid crystal display device enabling a reduction in size and costs associated with the system as a whole, starting to display images without image distortion at power on time, and turning the screen off without image retention at power off time, a method of controlling the liquid crystal display device, and a mobile terminal incorporating the liquid crystal display device as a screen display. On a glass substrate (11) provided with a display unit (12), peripheral drive circuits such as an interface circuit (13), a timing generator (14), a reference voltage driver (15), a CS driver (18), a VCOM driver (19), and a voltage regulation circuit (20), together with a horizontal driver (16) and a vertical driver (17) are disposed. When a display reset control pulse PCI is supplied from an external source, a predetermined voltage is written into pixels while a CS voltage and a VCOM voltage adjusted to the same level as that of a pixel voltage are applied to a common-electrode-side. This allows the screen to turn white in a normally white type liquid crystal display, and to turn black in a normally black type liquid crystal display. Image distortion at power on/off time can thus be prevented.

公开(公告)号：US09063613B2

公开(公告)日：2015-06-23

申请号：US12451485

申请日：2009-03-18

申请人： Tsutomu Harada ,  Yoshiharu Nakajima ,  Michiru Senda ,  Kazunori Yamaguchi ,  Mitsuru Tateuchi ,  Ryoichi Tsuzaki ,  Toshikazu Maekawa

发明人： Tsutomu Harada ,  Yoshiharu Nakajima ,  Michiru Senda ,  Kazunori Yamaguchi ,  Mitsuru Tateuchi ,  Ryoichi Tsuzaki ,  Toshikazu Maekawa

IPC分类号： G06F3/042 ,  G06F3/041 ,  G06F3/0488 ,  G09G3/34

CPC分类号： G06F3/0421 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/042 ,  G06F3/04883 ,  G06F2203/04101 ,  G09G3/3406 ,  G09G2354/00 ,  G09G2360/142 ,  H04N5/378

摘要： An image pickup device capable of stably detecting an object irrespective of use conditions while reducing manufacturing costs is provided. When illumination light from a backlight 15 is emitted to a proximity object from an I/O display panel 20, an electric charge for charging is accumulated in each of image pickup pixels 33 in accordance with total light amount as a summation of reflected light Lon originating from the illumination light and environment light (outside light) L0. Moreover, when the above-described illumination light is not emitted, an electric charge for discharging is released from each of the image pickup pixels 33 in accordance with light amount of the environment light L0. Thereby, a component by the environment light L0 is subtracted in an image pickup signal obtained from each of the image pickup pixels 33, so object information about the proximity object is obtainable without influence of the environment light L0. Moreover, in a light reception drive circuit 13, a smaller number of necessary frame memories 13A for producing a picked-up image from the image pickup signal than that in related art are necessary.

摘要翻译： 提供能够在不影响使用条件的同时稳定地检测物体的同时降低制造成本的图像拾取装置。 当来自背光源15的照明光从I / O显示面板20发射到接近物体时，根据总光量将每个摄像像素33累积充电用电荷作为起始的反射光Lon的总和 从照明光和环境光（外部光）L0。 此外，当不发射上述照明光时，根据环境光L0的光量，从每个摄像像素33释放用于放电的电荷。 由此，在从每个摄像像素33获得的图像拾取信号中减去环境光L0的分量，因此可以在不影响环境光L0的情况下获得关于接近对象的对象信息。 此外，在光接收驱动电路13中，需要从图像拾取信号产生拾取图像的必要帧存储器13A的数量少于现有技术。

公开(公告)号：US07864170B2

公开(公告)日：2011-01-04

申请号：US11789279

申请日：2007-04-23

申请人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Toshikazu Maekawa

发明人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Toshikazu Maekawa

IPC分类号： G06F3/038

CPC分类号： G09G3/3648 ,  G09G3/3655 ,  G09G3/3688 ,  G09G2300/0876 ,  G09G2310/0245 ,  G09G2310/027 ,  G09G2310/06 ,  G09G2310/063 ,  G09G2320/0204 ,  G09G2320/0219 ,  G09G2320/0257 ,  G09G2330/026 ,  G09G2330/027

摘要： A liquid crystal display device enabling a reduction in size and costs associated with the system as a whole, starting to display images without image distortion at power on time, and turning the screen off without image retention at power off time, a method of controlling the liquid crystal display device, and a mobile terminal incorporating the liquid crystal display device as a screen display. On a glass substrate (11) provided with a display unit (12), peripheral drive circuits such as an interface circuit (13), a timing generator (14), a reference voltage driver (15), a CS driver (18), a VCOM driver (19), and a voltage regulation circuit (20), together with a horizontal driver (16) and a vertical driver (17) are disposed. When a display reset control pulse PCI is supplied from an external source, a predetermined voltage is written into pixels while a CS voltage and a VCOM voltage adjusted to the same level as that of a pixel voltage are applied to a common-electrode-side. This allows the screen to turn white in a normally white type liquid crystal display, and to turn black in a normally black type liquid crystal display. Image distortion at power on/off time can thus be prevented.

摘要翻译： 一种液晶显示装置，其能够与整个系统相关联地减小尺寸和成本，开始显示在通电时间没有图像失真的图像，并且在断电时关闭屏幕而不进行图像保持;控制方法 液晶显示装置和结合有液晶显示装置的移动终端作为画面显示。 在设置有显示单元（12）的玻璃基板（11）上，诸如接口电路（13），定时发生器（14），参考电压驱动器（15），CS驱动器（18）， 设置VCOM驱动器（19）和电压调节电路（20）以及水平驱动器（16）和垂直驱动器（17）。 当从外部源提供显示复位控制脉冲PCI时，将预定电压写入像素，同时将CS电压和VCOM电压调整到与像素电压相同的电平施加到共电极侧。 这允许屏幕在普通白色液晶显示器中变为白色，并且在常黑型液晶显示器中变黑。 因此可以防止电源开/关时的图像失真。

公开(公告)号：US20070262975A1

公开(公告)日：2007-11-15

申请号：US11880699

申请日：2007-07-24

申请人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Toshikazu Maekawa

发明人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Toshikazu Maekawa

IPC分类号： G06F3/038

CPC分类号： G06F1/3203 ,  G06F1/324 ,  G09G3/3648 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0408 ,  G09G2300/08 ,  G09G2310/0267 ,  G09G2310/027 ,  G09G2330/021 ,  Y02D10/126

摘要： A timing generating circuit with low power consumption and a small layout area, a display apparatus including the timing generating circuit as one peripheral driving circuit, and a portable terminal including the display apparatus as a display output section are provided. In the timing generating circuit, which is formed on an insulating substrate and generates output pulses SRFF1out to SRFFnout having different frequencies based on a master clock MCK, a clock generating circuit (11) generates an operating clock having a lower frequency than the master clock MCK frequency. Then, a counter section (12) operates based on this operating clock and successively outputs shifted pulses S/R1out to S/Rmount from shift registers (121-1) to (121-m). An output pulse generating section (13) generates output pulses SF1out to SFnout based on combinations of the shifted pulses S/R1out to S/Rmount.

摘要翻译： 具有低功耗和小布局区域的定时发生电路，包括作为一个外围驱动电路的定时发生电路的显示装置和包括作为显示输出部分的显示装置的便携式终端。 在定时发生电路中，形成在绝缘衬底上并基于主时钟MCK产生具有不同频率的输出脉冲SRFF1至SRFFnout，时钟发生电路（11）产生频率低于主器件的工作时钟 时钟MCK频率。 然后，基于该工作时钟，计数部（12）进行动作，从移位寄存器（121-1）〜（121-m）依次输出移位脉冲S / R 1〜S / Rmount。 输出脉冲生成部（13）根据移位脉冲S / R 1 out〜S / R mount的组合，生成输出脉冲SF1〜SFnout。

公开(公告)号：US07126376B2

公开(公告)日：2006-10-24

申请号：US10485374

申请日：2003-05-30

申请人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Toshikazu Maekawa

发明人： Yoshitoshi Kida ,  Yoshiharu Nakajima ,  Toshikazu Maekawa

IPC分类号： H03K19/173 ,  H03K3/037

CPC分类号： G09G3/20 ,  G09G3/3648 ,  G09G5/18 ,  G09G2300/0408 ,  G09G2310/0289 ,  G09G2310/08

摘要： When a buffer is formed by using transistors having large element characteristic variations, the deviation of the timing between the input clock pulse and the reset pulse is likely to occur. When the deviation of the timing becomes larger, a malfunction is caused to occur, and an operation margin becomes smaller with respect to the variations of the element characteristics. In a timing generation circuit, which is formed on an insulating substrate and which has two TFFs (12, 13), for generating a dot clock DCK and a horizontal clock HCK whose frequencies are different in synchronization with a master clock MCK which is input external to the substrate, separate reset pulses drst and hrst are generated at a pulse generation circuit 15 with respect to the two TFFs (12, 13), and a resetting operation is performed at separate timings. Thus, a large operation margin can be ensured even when each circuit is formed by using TFTs having large element characteristic variations and a rough process rule.

摘要翻译： 当通过使用具有大的元件特性变化的晶体管形成缓冲器时，可能会发生输入时钟脉冲与复位脉冲之间的定时偏差。 当定时的偏差变大时，会发生故障，相对于元件特性的变化，操作余量变小。 在形成在绝缘基板上并具有两个TFF（12,13）的定时产生电路中，用于产生点时钟DCK和频率与输入外部的主时钟MCK同步的频率不同的水平时钟HCK 在相对于两个TFF（12,13）的脉冲发生电路15处产生分离的复位脉冲drst和hrst，并且在单独的定时执行复位操作。 因此，即使当通过使用具有大的元件特性变化的TFT和粗略的处理规则形成每个电路时，也可以确保大的操作余量。

公开(公告)号：US06894674B2

公开(公告)日：2005-05-17

申请号：US10182600

申请日：2001-12-06

申请人： Yoshiharu Nakajima ,  Yasuhito Maki ,  Toshikazu Maekawa

发明人： Yoshiharu Nakajima ,  Yasuhito Maki ,  Toshikazu Maekawa

IPC分类号： G09G3/20 ,  G09G3/30 ,  G09G3/36 ,  G09G5/00

CPC分类号： G09G3/2011 ,  G09G3/30 ,  G09G3/3677 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2300/0408 ,  G09G2300/08 ,  G09G2310/027 ,  G09G2310/0294 ,  G09G2310/06

摘要： A timing generation circuit (15) is formed integrally on the same glass substrate (11) together with a display area section (12) similarly to an H driver (13U) and a V driver (14), and timing pulses to be used by the H driver (13U) and the V driver (14) are produced based on timing data produced by a shift register (31U) of the H driver (13U) and a shift register (14A) of the V driver (14). The invention thereby provides a timing generation circuit which can contribute to miniaturization and reduction of the cost of the set and a display apparatus of the active matrix type in which the timing generation circuit is incorporated.

摘要翻译： 与H驱动器（13U）和V驱动器（14）类似，定时产生电路（15）与显示区域部分（12）一体地形成在同一玻璃基板（11）上，并且使用定时脉冲 基于H驱动器（13U）的移位寄存器（31U）和V驱动器（13U）的移位寄存器（14A）产生的定时数据，由H驱动器（13U）和V驱动器（14） （14）。 因此，本发明提供了一种定时生成电路，其可以有助于小型化和降低该组件的成本以及其中结合有定时产生电路的有源矩阵型的显示装置。

公开(公告)号：US06795050B1

公开(公告)日：2004-09-21

申请号：US09383923

申请日：1999-08-26

申请人： Masumitsu Ino ,  Toshikazu Maekawa ,  Yoshiharu Nakajima ,  Hiroaki Ichikawa

发明人： Masumitsu Ino ,  Toshikazu Maekawa ,  Yoshiharu Nakajima ,  Hiroaki Ichikawa

IPC分类号： G09G336

CPC分类号： G09G3/3688 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2310/0297 ,  G09G2320/0209

摘要： An active-matrix-type liquid crystal display device supplies signal potentials to signal lines of a liquid crystal display panel according to a time-division drive method using time-division switches. The low-level potential of select pulses to be supplied from a select pulse generating circuit to CMOS analog switches of the time-division switches is set to be lower than the low-level potential of a signal potential output from a horizontal drive circuit. With this arrangement, even if the signal potential of a non-selected signal line is decreased due to the crosstalk of a signal potential from a selected signal line to the non-selected signal line, the generation of insufficient contrast and non-uniformity of the luminance in the horizontal direction can be prevented. As a consequence, a high image quality is maintained.

摘要翻译： 根据使用时分开关的时分驱动方法，有源矩阵型液晶显示装置向液晶显示面板的信号线提供信号电位。 将从选择脉冲发生电路提供的选择脉冲的低电平电位设置为低于从水平驱动电路输出的信号电位的低电位电位。 利用这种布置，即使由于从所选择的信号线到未选择的信号线的信号电位的串扰，未被选择的信号线的信号电位降低，产生不足的对比度和不均匀性 可以防止水平方向的亮度。 因此，保持高图像质量。

公开(公告)号：US06791539B2

公开(公告)日：2004-09-14

申请号：US09980251

申请日：2002-04-17

申请人： Yoshiharu Nakajima ,  Toshikazu Maekawa

发明人： Yoshiharu Nakajima ,  Toshikazu Maekawa

IPC分类号： G09G336

CPC分类号： G09G3/3688 ,  G09G2310/027 ,  G09G2310/0281 ,  G09G2310/0289 ,  G09G2310/0294 ,  G09G2310/04 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2330/022

摘要： This invention provides a liquid crystal display device having a partial screen display mode, in which a latch control circuit (17) first stores white data or black data as color data of one line to latch circuits (121), (131) at the beginning of an image non-display period and then repeatedly reads out and outputs the color data to respective column lines in a display area (11) until the display period ends, thereby stopping the operation to write data to the latch circuits (121), (131) substantially during the entire image non-display period.

摘要翻译： 本发明提供一种具有部分屏幕显示模式的液晶显示装置，其中锁存器控制电路（17）首先将白色数据或黑色数据作为一行的彩色数据存储在开始时的锁存电路（121），（131） 的图像非显示时段，然后重复读出并将颜色数据输出到显示区域（11）中的各个列线直到显示周期结束，从而停止向锁存电路（121）写入数据的操作（ 131）基本上在整个图像非显示期间。