公开(公告)号：US20060066533A1

公开(公告)日：2006-03-30

申请号：US11224954

申请日：2005-09-14

申请人： Toshihiro Sato ,  Hajime Akimoto ,  Naruhiko Kasai ,  Naoki Tokuda

发明人： Toshihiro Sato ,  Hajime Akimoto ,  Naruhiko Kasai ,  Naoki Tokuda

IPC分类号： G09G3/30

CPC分类号： G09G3/20 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2360/16

摘要： A plurality of organic EL elements which are arranged on a display panel lowers the brightness along with a lapse of light emitting time and hence, the power consumption is increased to maintain the brightness. However, the increase of the power consumption shortens a lifetime of the organic EL elements. To overcome this drawback, a power supply circuit which drives the display panel has a function of controlling an electric power supplied to the display panel to a fixed value or less in response to a detection signal from a detection part which detects a cathode current of the organic EL elements.

摘要翻译： 布置在显示面板上的多个有机EL元件随着发光时间的延长而降低亮度，因此增加功耗以保持亮度。 然而，功耗的增加缩短了有机EL元件的寿命。 为了克服这个缺点，驱动显示面板的电源电路具有根据来自检测部分检测到的阴极电流的检测信号，将提供给显示面板的电力控制在一定值以下的功能 有机EL元件。

公开(公告)号：US08816945B2

公开(公告)日：2014-08-26

申请号：US11783603

申请日：2007-04-10

申请人： Naruhiko Kasai ,  Hiroki Awakura ,  Toshihiro Satou

发明人： Naruhiko Kasai ,  Hiroki Awakura ,  Toshihiro Satou

IPC分类号： G09G3/30

CPC分类号： G09G3/3225 ,  G09G3/2014 ,  G09G3/2081 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2330/02

摘要： The present invention comprises: a display unit having a plurality of display elements arranged in a matrix; a drive voltage generating circuit for generating a drive voltage for driving the plurality of display elements; a dataline drive circuit for generating a signal voltage according to display data, the signal voltage being for controlling the amount of current in a supply line of the drive voltage; a scanline drive circuit for selecting one or more of the plurality of display elements which is to be driven; and a pixel light emission control circuit for controlling a light emission time period of each display element according to a distance measured along a current path from the drive voltage generating circuit to the display element.

摘要翻译： 本发明包括：具有排列成矩阵的多个显示元件的显示单元; 用于产生用于驱动所述多个显示元件的驱动电压的驱动电压产生电路; 用于根据显示数据产生信号电压的数据线驱动电路，所述信号电压用于控制所述驱动电压的供给线路中的电流量; 用于选择要驱动的多个显示元件中的一个或多个的扫描线驱动电路; 以及像素发光控制电路，用于根据沿着从驱动电压产生电路到显示元件的电流路径测量的距离来控制每个显示元件的发光时间段。

公开(公告)号：US08094112B2

公开(公告)日：2012-01-10

申请号：US11348401

申请日：2006-02-07

申请人： Tsutomu Furuhashi ,  Makiko Ikeda ,  Naruhiko Kasai ,  Toshio Futami ,  Tetsuya Suzuki

发明人： Tsutomu Furuhashi ,  Makiko Ikeda ,  Naruhiko Kasai ,  Toshio Futami ,  Tetsuya Suzuki

IPC分类号： G09G3/36

CPC分类号： G09G3/2011 ,  G09G3/3614 ,  G09G3/3648 ,  G09G3/3655 ,  G09G3/3659 ,  G09G3/3688 ,  G09G2300/0842 ,  G09G2300/0876 ,  G09G2310/0251 ,  G09G2310/027 ,  G09G2310/0281 ,  G09G2310/0289

摘要： A display apparatus comprising a plurality of pixel portions arranged in a matrix, a signal driver circuit which generates apply voltages corresponding to display data, and applies the apply voltages to the pixel portions, a scan driver circuit which applies a selecting voltage to selected ones of the pixel portions, and a level shifter circuit which converts a voltage level of the display data into a drive voltage level of the signal driver circuit, thereby producing level-shifted display data. The signal driver circuit generates the apply voltages based on the level-shifted display data.

摘要翻译： 一种显示装置，包括以矩阵形式排列的多个像素部分，产生与显示数据对应的施加电压的信号驱动电路，并将施加电压施加到像素部分;扫描驱动电路，对所选择的像素部分施加选择电压; 像素部分和将显示数据的电压电平转换为信号驱动电路的驱动电压电平的电平移位器电路，由此产生电平转换显示数据。 信号驱动器电路基于电平移位显示数据产生施加电压。

公开(公告)号：US20100321423A1

公开(公告)日：2010-12-23

申请号：US12869303

申请日：2010-08-26

申请人： Tsutomu Furuhashi ,  Takeshi Maeda ,  Atsuhiro Higa ,  Hisayuki Ohhara ,  Hiroshi Kurihara ,  Naruhiko Kasai

发明人： Tsutomu Furuhashi ,  Takeshi Maeda ,  Atsuhiro Higa ,  Hisayuki Ohhara ,  Hiroshi Kurihara ,  Naruhiko Kasai

IPC分类号： G09G5/02

CPC分类号： G09G5/005 ,  G09G3/3611 ,  G09G3/3685 ,  G09G3/3688 ,  G09G5/003 ,  G09G5/006 ,  G09G5/391 ,  G09G5/393 ,  G09G5/395 ,  G09G2310/0205 ,  G09G2310/027 ,  G09G2340/0407 ,  G09G2340/0414 ,  G09G2340/0421 ,  G09G2340/0435 ,  G09G2340/0471 ,  G09G2340/0478 ,  G09G2340/0485 ,  G09G2360/18

摘要： There is provided a liquid crystal display control device which can display pictures in a magnification mode by using only a memory having a low-speed access and a low storage capacity. When a video signal has intermediate resolution or less, the enlargement processing is performed by a frame memory, a line memory and an enlargement processing control circuit. If the input operation and the output operation to and from the frame memory are synchronized with each other, it is sufficient for the frame memory to have a storage capacity of two lines. When the video signal has the same high resolution as a liquid crystal display panel, the video signal is output through a gate circuit to a display timing generating circuit, and it is displayed in a through mode. In this case, no processing is performed by the frame memory or the like.

摘要翻译： 提供了一种液晶显示控制装置，其可以仅使用具有低速存取和低存储容量的存储器来以放大模式显示图像。 当视频信号具有中等分辨率或更小时，放大处理由帧存储器，行存储器和放大处理控制电路执行。 如果与帧存储器的输入操作和输出操作相互同步，则帧存储器具有两行的存储容量就足够了。 当视频信号具有与液晶显示面板相同的高分辨率时，视频信号通过门电路输出到显示定时产生电路，并以直通模式显示。 在这种情况下，帧存储器等不进行处理。

公开(公告)号：US20100265242A1

公开(公告)日：2010-10-21

申请号：US12760582

申请日：2010-04-15

申请人： Naoki TAKADA ,  Naruhiko Kasai ,  Takuya Eriguchi ,  Yuki Okada ,  Mitsuru Goto ,  Akihito Akai

发明人： Naoki TAKADA ,  Naruhiko Kasai ,  Takuya Eriguchi ,  Yuki Okada ,  Mitsuru Goto ,  Akihito Akai

IPC分类号： G06F3/038 ,  G05F1/00

CPC分类号： H02M3/156

摘要： A power circuit includes a coil that charges an electric charge of an input voltage, a switch device that controls charging and discharging of the coil, a diode that rectifies the flow of the electric charge from the coil, a capacitor that stabilizes an output voltage when the switch device is turned on, and a driving circuit that controls ON and OFF states of the switch device. The power circuit alternately switches the ON and OFF states of the switch device to control charging and discharging of the coil and the capacitor, and generates and supplies an output voltage higher than the input voltage, and the driving circuit controls the off-period of the switch device according to the on-period of the switch device and the voltage ratio of the output voltage and the input voltage while changing the repetition period of the ON and OFF states of the switch device.

摘要翻译： 电源电路包括对输入电压的电荷进行充电的线圈，控制线圈的充电和放电的开关装置，对来自线圈的电荷的流量进行整流的二极管，稳定输出电压的电容器， 开关装置被接通，以及控制开关装置的ON和OFF状态的驱动电路。 电源电路交替地切换开关器件的导通和截止状态，以控制线圈和电容器的充电和放电，并产生并提供高于输入电压的输出电压，并且驱动电路控制 开关装置根据开关装置的导通周期和开关装置的ON和OFF状态的重复周期，输出电压和输入电压的电压比。

公开(公告)号：US06888525B2

公开(公告)日：2005-05-03

申请号：US10425834

申请日：2003-04-30

申请人： Naruhiko Kasai ,  Hiroyuki Mano ,  Shigeyuki Nishitani ,  Isao Takita ,  Kohji Takahashi

发明人： Naruhiko Kasai ,  Hiroyuki Mano ,  Shigeyuki Nishitani ,  Isao Takita ,  Kohji Takahashi

IPC分类号： G09G3/36 ,  G02F1/133 ,  G09G3/20 ,  H04N5/66

CPC分类号： G09G3/2011 ,  G09G3/2025 ,  G09G3/3648 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2310/027 ,  G09G2320/0242 ,  G09G2320/0271 ,  G09G2320/0276

摘要： A dot matrix display system for multiple-tone displays, including a display device in which pixels are arrayed in a matrix shape, an LC (liquid-crystal) drive signal generator which converts color display data into LC display data, an 8-level data driver which selects one of 8-level voltages in accordance with the LC display data and then delivers the selected voltage, and an 8-level applied LC voltage generator by which the 8-level applied LC voltages to be applied to the pixels are produced so as to substantially make uniform color differences between the respectively adjacent tones of the multiple-tone displays. Owing to the substantially uniform color differences between the respectively adjacent tones, the multiple-tone displays which are uniformly seen by the human eye can be realized.

摘要翻译： 一种用于多色调显示器的点阵显示系统，包括其中像素排列成矩阵形状的显示装置，将彩色显示数据转换为LC显示数据的LC（液晶）驱动信号发生器，8级数据 驱动器，其根据LC显示数据选择8级电压中的一个，然后传送所选择的电压;以及8级施加的LC电压发生器，由此产生要施加到像素的8电平施加的LC电压，使得 以便在多色调显示器的相邻相邻色调之间基本上使均匀的色差。 由于相邻相邻色调之间的基本均匀的色差，可以实现人眼均匀观看的多色调显示。

公开(公告)号：US06587602B2

公开(公告)日：2003-07-01

申请号：US10099951

申请日：2002-03-19

申请人： Shinji Wakisawa ,  Naruhiko Kasai ,  Hiroko Sato ,  Youichi Watanabe ,  Hiroyuki Koizumi

发明人： Shinji Wakisawa ,  Naruhiko Kasai ,  Hiroko Sato ,  Youichi Watanabe ,  Hiroyuki Koizumi

IPC分类号： G06K932

CPC分类号： G06T3/4007 ,  G09G3/20 ,  G09G5/00 ,  G09G5/26 ,  G09G5/391 ,  G09G2340/0407 ,  G09G2340/0414 ,  G09G2340/0421 ,  H04N5/14 ,  H04N7/01

摘要： There is disclosed a resolution conversion apparatus for converting an original digital image into a digital image having a different number of pixels in accordance with an instructed conversion magnification factor. In the apparatus, a determination circuit determines the number of pixels to be interpolated in each block of the original image and positions where they are interpolated in accordance with the conversion magnification factor. The block includes a predetermined number of pixels of the original image. A converted image generation circuit generates pixel data for the interpolation pixels at the positions where they are interpolated in accordance with a predetermined interpolation equation whose coefficients are determined with the positions and data values of the pixels in the block, and combines the pixel data for the digital original image and the generated pixel data to output a converted digital image. The interpolation equation includes spline functions and Bezier functions.

公开(公告)号：US06542141B1

公开(公告)日：2003-04-01

申请号：US09588048

申请日：2000-06-06

申请人： Hiroyuki Mano ,  Toshio Tanaka ,  Tsutomu Furuhashi ,  Masaaki Kitajima ,  Toshio Futami ,  Masaki Mega ,  Shigeyuki Nishitani ,  Naruhiko Kasai ,  Kohji Takahashi

发明人： Hiroyuki Mano ,  Toshio Tanaka ,  Tsutomu Furuhashi ,  Masaaki Kitajima ,  Toshio Futami ,  Masaki Mega ,  Shigeyuki Nishitani ,  Naruhiko Kasai ,  Kohji Takahashi

IPC分类号： G09G336

CPC分类号： G09G3/3622 ,  G09G3/2018 ,  G09G2320/0247

摘要： A liquid crystal halftone display system including a tone generator which, for pixels having P tones of K tones (1≦P≦K), alternately outputs first N-bit tone display data and second N-bit tone display data in successive frames at one of a first phase and a second phase. Within a block of pixels, the tone generator alternately inverts the phase of the N-bit tone display data at successive first pixels having different ones of the P tones within the block of pixels beginning at a left side of the block of pixels, and alternately inverts the phase of the N-bit tone display data at successive pixels having a same one of the P tones within the block of pixels beginning at the left side of the block of pixels.

摘要翻译： 一种液晶半色调显示系统，包括一个乐音发生器，对于具有K音调（1 <= P <= K）的P音调的像素，在连续的帧中交替地输出第一N位乐音显示数据和第二N比特音调显示数据 在第一阶段和第二阶段中的一个阶段。 在一个像素块内，色调发生器在像素块的左侧开始的像素块内的P个音调中具有不同的P个音调的连续的第一像素交替地颠倒N位色调显示数据的相位， 在像素块左侧开始的像素块内具有相同的P个音调的连续像素的N位色调显示数据的相位反转。

公开(公告)号：US06320564B1

公开(公告)日：2001-11-20

申请号：US09773728

申请日：2001-02-02

申请人： Naruhiko Kasai ,  Hiroyuki Mano ,  Shigeyuki Nishitani ,  Isao Takita ,  Kohji Takahashi

发明人： Naruhiko Kasai ,  Hiroyuki Mano ,  Shigeyuki Nishitani ,  Isao Takita ,  Kohji Takahashi

IPC分类号： G09G336

CPC分类号： G09G3/2011 ,  G09G3/2025 ,  G09G3/3648 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2310/027 ,  G09G2320/0242 ,  G09G2320/0271 ,  G09G2320/0276

摘要： A dot matrix display system for multiple-tone displays, comprising a display device in which pixels are arrayed in a matrix shape, an LC (liquid-crystal) drive signal generator which converts color display data into LC display data, an 8-level data driver which selects one of 8-level voltages in accordance with the LC display data and then delivers the selected voltage, and an 8-level applied LC voltage generator by which the 8-level voltages to be applied to the pixels are produced so as to substantially make uniform color differences between the respectively adjacent tones of the multiple-tone displays. Owing to the substantially uniform color differences between the respectively adjacent tones, multiple-tone displays which are uniformly seen by the human eye can obtained.

摘要翻译： 一种用于多色调显示器的点阵显示系统，包括以矩阵形式排列像素的显示装置，将彩色显示数据转换为LC显示数据的LC（液晶）驱动信号发生器，8级数据 驱动器，其根据LC显示数据选择8级电压中的一个，然后传送所选择的电压;以及8级施加的LC电压发生器，通过该电压产生要施加到像素的8电平电压，以便 在多色调显示器的相邻相邻色调之间基本上使均匀的色差。 由于相邻相邻色调之间的基本均匀的色差，可以获得人眼均匀地看到的多色调显示器。

公开(公告)号：US06191766B1

公开(公告)日：2001-02-20

申请号：US09459341

申请日：1999-12-13

申请人： Naruhiko Kasai ,  Hiroyuki Mano ,  Shigeyuki Nishitani ,  Isao Takita ,  Kohji Takahashi

发明人： Naruhiko Kasai ,  Hiroyuki Mano ,  Shigeyuki Nishitani ,  Isao Takita ,  Kohji Takahashi

IPC分类号： G09G336

CPC分类号： G09G3/2011 ,  G09G3/2025 ,  G09G3/3648 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2310/027 ,  G09G2320/0242 ,  G09G2320/0271 ,  G09G2320/0276

摘要： A dot matrix display system for multiple-tone displays, including a display device in which pixels are arrayed in a matrix shape, an LC (liquid-crystal) drive signal generator which converts color display data into LC display data, an 8-level data driver which selects one of 8-level voltages in accordance with the LC display data and then delivers the selected voltage, and an 8-level applied LC voltage generator by which the 8-level voltages to be applied to the pixels are produced so as to substantially make uniform color differences between the respectively adjacent tones of the multiple-tone displays. Owing to the substantially uniform color differences between the respectively adjacent tones, multiple-tone displays which are uniformly seen. by the human eye can be obtained.

摘要翻译： 一种用于多色调显示器的点阵显示系统，包括其中像素排列成矩阵形状的显示装置，将彩色显示数据转换为LC显示数据的LC（液晶）驱动信号发生器，8级数据 驱动器，其根据LC显示数据选择8级电压中的一个，然后传送所选择的电压;以及8级施加的LC电压发生器，通过该电压产生要施加到像素的8电平电压，以便 在多色调显示器的相邻相邻色调之间基本上使均匀的色差。 由于相邻相邻色调之间的基本均匀的色差，均匀地看到的多色调显示器。 可以通过人眼获得。