公开(公告)号：US5818409A

公开(公告)日：1998-10-06

申请号：US575940

申请日：1995-12-21

申请人： Tsutomu Furuhashi ,  Tatsuhiro Inuzuka ,  Hiroyuki Mano ,  Shigeyuki Nishitani ,  Yasuyuki Kudo ,  Satoru Tsunekawa ,  Toshio Futami

发明人： Tsutomu Furuhashi ,  Tatsuhiro Inuzuka ,  Hiroyuki Mano ,  Shigeyuki Nishitani ,  Yasuyuki Kudo ,  Satoru Tsunekawa ,  Toshio Futami

IPC分类号： G02F1/133 ,  G09G3/36

CPC分类号： G09G3/3622 ,  G09G3/3625 ,  G09G3/3681 ,  G09G3/3692 ,  G09G3/3696 ,  G09G2310/0205 ,  G09G2320/0204

摘要： A data electrode driving circuit, a scanning electrode driving circuit, a liquid crystal display unit and a driving method thereof for attaining simultaneous scanning and driving of a plurality of rows in a passive matrix type liquid crystal display unit. A scanning electrode driving circuit includes a scanning function generating circuit for generating scanning functions for m rows. A scanning voltage is selected by the scanning function and a driving voltage is supplied to the scanning electrode. On the other hand, a data electrode driving circuit includes shift registers for m rows. The shift registers produce display data for m rows taken therein at the same time. The display data for m rows and the scanning function produced by the scanning electrode driving circuits are subjected to comparison operation. One level of m+1 level voltages is selected in accordance with the operation result and is supplied to the data electrode. The liquid crystal panel performs display in accordance with the voltage for the scanning electrode and the voltage for the data electrode.

摘要翻译： 数据电极驱动电路，扫描电极驱动电路，液晶显示单元及其驱动方法，用于在无源矩阵型液晶显示单元中同时扫描和驱动多行。 扫描电极驱动电路包括用于产生m行的扫描功能的扫描函数产生电路。 通过扫描功能选择扫描电压，向扫描电极提供驱动电压。 另一方面，数据电极驱动电路包括用于m行的移位寄存器。 移位寄存器同时产生m行的显示数据。 对m行的显示数据和由扫描电极驱动电路产生的扫描功能进行比较操作。 根据操作结果选择一级m + 1级电压，并提供给数据电极。 液晶面板根据扫描电极的电压和数据电极的电压进行显示。

公开(公告)号：US5764212A

公开(公告)日：1998-06-09

申请号：US391599

申请日：1995-02-21

申请人： Shigeyuki Nishitani ,  Hiroyuki Mano ,  Tsutomu Furuhashi ,  Yasuyuki Kudo ,  Tatsuhiro Inuzuka ,  Toshio Futami ,  Satoru Tsunekawa

发明人： Shigeyuki Nishitani ,  Hiroyuki Mano ,  Tsutomu Furuhashi ,  Yasuyuki Kudo ,  Tatsuhiro Inuzuka ,  Toshio Futami ,  Satoru Tsunekawa

IPC分类号： G09G3/20 ,  G09G3/36

CPC分类号： G09G3/3696 ,  G09G3/3622 ,  G09G3/3625 ,  G09G3/3681 ,  G09G3/3692 ,  G09G2310/0289 ,  G09G3/2018

摘要： A liquid crystal display device includes N (N is a positive integer except zero) data electrodes, M (M is a positive integer except zero) scan electrodes, a liquid crystal display panel having pixels located at crosspoints between said data electrodes and said scan electrodes, and a data electrode driving circuit. The data electrode circuit has a memory unit from or into which the information information is read or written, a write control circuit for controlling a write of the display information into a memory area of the memory unit, a read control circuit for simultaneously reading the display information corresponding to N data electrodes from the memory area at a different period of the writing period, and an output circuit for converting the display information read from the memory unit into the corresponding voltage and feeding the display voltage to the data electrode.

摘要翻译： 一种液晶显示装置，包括N（N为除零以外的正整数）数据电极，M（M为除零以外的正整数）扫描电极，具有位于所述数据电极与所述扫描电极之间的交叉点的像素的液晶显示面板 ，以及数据电极驱动电路。 数据电极电路具有从其中读取或写入信息信息的存储器单元，用于控制将显示信息写入存储器单元的存储区域的写入控制电路，用于同时读取显示器的读取控制电路 在写入周期的不同周期从存储区域对应于N个数据电极的信息，以及用于将从存储器单元读取的显示信息转换为相应电压并将显示电压馈送到数据电极的输出电路。

公开(公告)号：US5861863A

公开(公告)日：1999-01-19

申请号：US638127

申请日：1996-04-26

申请人： Yasuyuki Kudo ,  Hiroyuki Mano ,  Tsutomu Furuhashi ,  Toshio Futami ,  Satoru Tsunekawa ,  Tatsuhiro Inuzuka

发明人： Yasuyuki Kudo ,  Hiroyuki Mano ,  Tsutomu Furuhashi ,  Toshio Futami ,  Satoru Tsunekawa ,  Tatsuhiro Inuzuka

IPC分类号： G09G3/36

CPC分类号： G09G3/3692 ,  G09G3/3625 ,  G09G3/3681 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2320/0209 ,  G09G2320/0247 ,  G09G3/3696

摘要： A scanning voltage driving device suitable for a liquid crystal panel with plural output terminals, the scanning voltage driving device producing a 2-level selection voltage to plural scanning electrode groups which drive the liquid crystal panel according to a value of an orthogonal function data, the 2-level selection voltage having a positive polarity and a negative polarity with respect to a center point being a non-selection voltage, includes orthogonal function producing means for producing the orthogonal function data from input synchronous display signal groups, scanning line selecting means for creating a scanning line selection signal from the synchronous display signal groups to indicate an output terminal for the selection voltage, and voltage selecting means for selectively outputting a voltage amount the 2 levels of the selection voltages and the non-selection voltage every output terminal according to the value of the scanning line selection signal and the value of the orthogonal function data, the scanning line selecting means dividing one frame period into plural virtual block periods and then repeatedly creating the scanning line selection signal which sequentially selects all the scanning electrodes to be selected for the block period every plural scanning electrodes.

摘要翻译： 一种适用于具有多个输出端子的液晶面板的扫描电压驱动装置，所述扫描电压驱动装置根据正交函数数据的值对驱动所述液晶面板的多个扫描电极组产生2电平选择电压， 具有相对于作为非选择电压的中心点具有正极性和负极性的2电平选择电压包括：正交函数产生装置，用于从输入同步显示信号组产生正交函数数据;扫描线选择装置，用于产生 来自同步显示信号组的扫描线选择信号组，以指示用于选择电压的输出端;以及电压选择装置，用于根据输入端选择性地输出每个输出端的选择电压和非选择电压的2个电平的电压量 扫描线选择信号的值和o的值 正交函数数据，扫描线选择装置将一个帧周期分割成多个虚拟块周期，然后重复产生扫描线选择信号，该扫描行选择信号在每个扫描电极中顺序地选择块选择周期的所有扫描电极。

公开(公告)号：US06353435B2

公开(公告)日：2002-03-05

申请号：US09059363

申请日：1998-04-14

申请人： Yasuyuki Kudo ,  Tsutomu Furuhashi ,  Hiroyuki Mano ,  Shinji Uchida ,  Tatsuhiro Inuzuka ,  Takeshi Maeda ,  Satoshi Konuma

发明人： Yasuyuki Kudo ,  Tsutomu Furuhashi ,  Hiroyuki Mano ,  Shinji Uchida ,  Tatsuhiro Inuzuka ,  Takeshi Maeda ,  Satoshi Konuma

IPC分类号： G09G500

CPC分类号： G09G3/3644 ,  G09G3/2025 ,  G09G3/3622

摘要： A liquid crystal display control apparatus includes a display on/off data generation circuit for generating plural display on/off data per pixel corresponding to M (M>N, M and N being integers) frame periods of a video output signal in N frame periods of a video input signal on a unit pixel basis in response to gray-scale data of pixel units included in the video input signal, a write control circuit for writing display on/off data per pixel corresponding to M frames of the video output signal generated by the display on/off data generation circuit into a frame memory during N frame periods of the video input signal, and a read control circuit for sequentially reading out, from the frame memory, display on/off data corresponding to M frames of the video output signal written in the frame memory in synchronism with one display scan period of the video output signal, thereby the data written in the frame memory is not gray-scale data but display on/off data of one bit, therefore, a data bus width at a time of accessing the frame memory can be reduced.

摘要翻译： 液晶显示控制装置包括：显示器开/关数据生成电路，用于产生与N帧中的视频输出信号的M（M> N，M和N为整数）对应的像素的多个显示开/关数据 响应于包括在视频输入信号中的像素单元的灰度数据，以单位像素为基础的视频输入信号的写控制电路，用于写入对应于所生成的视频输出信号的M帧的每像素的显示开/关数据的写控制电路 通过在视频输入信号的N帧周期期间通过显示器的开/关数据产生电路进入帧存储器，以及读取控制电路，用于从帧存储器顺序地读出对应于视频的M个帧的开/关数据 输出信号与视频输出信号的一个显示扫描周期同步写入帧存储器，由此写入帧存储器的数据不是灰度数据，而是显示一位的开/关数据，因此数据 可以减少访问帧存储器时的总线宽度。

公开(公告)号：US6084561A

公开(公告)日：2000-07-04

申请号：US970197

申请日：1997-11-14

申请人： Yasuyuki Kudo ,  Hiroyuki Mano ,  Tsutomu Furuhashi ,  Shinji Uchida ,  Tomohide Ohira ,  Tatsuhiro Inuzuka

发明人： Yasuyuki Kudo ,  Hiroyuki Mano ,  Tsutomu Furuhashi ,  Shinji Uchida ,  Tomohide Ohira ,  Tatsuhiro Inuzuka

IPC分类号： G09G3/20 ,  G09G3/36

CPC分类号： G09G3/3622 ,  G09G3/2018 ,  G09G3/2051 ,  G09G3/2055

摘要： A liquid crystal controller for controlling display of a liquid crystal display device of passive matrix type includes gray scale processing being performed on input data before being written in a frame memory for frame frequency conversion and gray scale processing being performed after the frequency conversion and reading of the data from the frame memory so that an amount of information of display data written in the frame memory can be reduced. Further, since the gray scale display pattern is switched by the same switching frequency as the converted frame frequency, pattern movement and flicker of the gray scale display portions can be reduced.

摘要翻译： 用于控制无源矩阵型液晶显示装置的显示的液晶控制器包括在写入用于帧频转换的帧存储器中的输入数据上进行灰度处理，并且在频率转换和读取之后执行灰度处理 来自帧存储器的数据，使得可以减少写入帧存储器中的显示数据的信息量。 此外，由于灰度显示图案以与转换的帧频相同的切换频率被切换，所以可以减少灰度显示部分的图案移动和闪烁。

公开(公告)号：US06862021B2

公开(公告)日：2005-03-01

申请号：US10087785

申请日：2002-03-05

申请人： Yasuyuki Kudo ,  Tsutomu Furuhashi ,  Hiroyuki Mano ,  Shinji Uchida ,  Tatsuhiro Inuzuka ,  Takeshi Maeda ,  Satoshi Konuma

发明人： Yasuyuki Kudo ,  Tsutomu Furuhashi ,  Hiroyuki Mano ,  Shinji Uchida ,  Tatsuhiro Inuzuka ,  Takeshi Maeda ,  Satoshi Konuma

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

CPC分类号： G09G3/3644 ,  G09G3/2025 ,  G09G3/3622

摘要： A display apparatus includes a display having a plurality of pixels, and a controller which selects a pattern corresponding to a gradation of gradation data. On-state pixels are added to a pattern corresponding to one gradation of the gradation data to obtain a pattern corresponding to another gradation of the gradation data higher than the one gradation of the gradation data while maintaining unchanged an arrangement of on-state pixels in the pattern corresponding to the one gradation of the gradation data.

摘要翻译： 显示装置包括具有多个像素的显示器和选择与灰度数据的灰度相对应的图案的控制器。 将开状态像素添加到与灰度数据的一个灰度级相对应的图案，以获得与灰度数据的高于灰度数据的灰度数据的灰度数据的另一个灰度相对应的图案，同时保持不变的导通状态像素的排列 模式对应于灰度数据的一个灰度。

公开(公告)号：US06118425A

公开(公告)日：2000-09-12

申请号：US44224

申请日：1998-03-19

申请人： Yasuyuki Kudo ,  Tatsuhiro Inuzuka ,  Tsutomu Furuhashi ,  Toshimitsu Matsudo ,  Kazunari Kurokawa

发明人： Yasuyuki Kudo ,  Tatsuhiro Inuzuka ,  Tsutomu Furuhashi ,  Toshimitsu Matsudo ,  Kazunari Kurokawa

IPC分类号： G09G3/36 ,  G09G5/00

CPC分类号： G09G3/3625 ,  G09G3/3692 ,  G09G3/3696

摘要： A liquid crystal display comprises a liquid crystal display panel having a plurality of scanning electrodes and data electrodes, the data electrodes driving circuit has a latch at a front stage for fetching a display data of two lines for partial driving and a latch at a post stage for storing the display data of two lines. The display data from the latch at the post stage is compared with the scanning function supplied from the scanning driver, one of the voltages at three levels is selected in accordance with the result of the comparison, and the selected voltage is applied to the data electrodes. Further, the data electrode driving circuit has a latch for storing the result of the comparison for a period of one line and a correction voltage is applied to the data electrode in accordance with a value obtained by comparing an output of the latch and the comparison result.

摘要翻译： 液晶显示器包括具有多个扫描电极和数据电极的液晶显示面板，数据电极驱动电路在前级具有用于获取用于部分驱动的两条线的显示数据和在后级的锁存器的锁存器 用于存储两行的显示数据。 将来自后级的锁存器的显示数据与从扫描驱动器提供的扫描功能进行比较，根据比较结果选择三个电平中的一个电压，并将所选择的电压施加到数据电极 。 此外，数据电极驱动电路具有用于存储一行周期的比较结果的锁存器，并且根据通过比较锁存器的输出和比较结果获得的值将校正电压施加到数据电极 。

公开(公告)号：US06369791B1

公开(公告)日：2002-04-09

申请号：US09660338

申请日：2000-09-12

申请人： Yasuyuki Kudo ,  Tatsuhiro Inuzuka ,  Tsutomu Furuhashi ,  Toshimitsu Matsudo ,  Kazunari Kurokawa

发明人： Yasuyuki Kudo ,  Tatsuhiro Inuzuka ,  Tsutomu Furuhashi ,  Toshimitsu Matsudo ,  Kazunari Kurokawa

IPC分类号： G06G336

CPC分类号： G09G3/3625 ,  G09G3/3692 ,  G09G3/3696

摘要： A liquid crystal display includes a scanning voltage driver which applies selective scanning voltages to scanning electrodes of a liquid crystal display panel one group of M (an integer of 2 or greater) adjacent scanning electrodes at a time in accordance with M orthogonal function data. A data voltage driver applies to data electrodes of the liquid crystal display panel data voltages selected from M+1 data voltages in accordance with a coincidence number representing a number of coincidences between values of M display data corresponding to the M adjacent scanning electrodes in a current group of scanning electrodes and values of the M orthogonal function data corresponding to the M adjacent scanning electrodes in the current group. The data voltage driver controls a correction period in accordance with a value of a difference between (1) a coincidence number corresponding to the current group of scanning electrodes and (2) a coincidence number corresponding to a previous group of scanning electrodes, and applies to the data electrode during the correction period a corrected data voltage which is equal to a sum of a correction voltage and one of the M+1 data voltages.

摘要翻译： 液晶显示器包括扫描电压驱动器，该扫描电压驱动器根据M个正交函数数据，一次对扫描电极的M（整数2以上）的液晶显示面板的扫描电极施加选择扫描电压。 数据电压驱动器根据表示与当前的M个相邻的扫描电极对应的M个显示数据的值之间的重合次数的符合数量，将液晶显示面板的数据电压应用于液晶显示面板的数据电压 扫描电极组和对应于当前组中的M个相邻扫描电极的M个正交函数数据的值。 数据电压驱动器根据（1）与当前的扫描电极组对应的一致数和（2）与先前的扫描电极组对应的符号数的差值来控制校正周期，并且适用于 在校正周期期间的数据电极，校正数据电压等于校正电压与M + 1个数据电压之和的校正数据电压。

公开(公告)号：US07176868B2

公开(公告)日：2007-02-13

申请号：US10874372

申请日：2004-06-24

申请人： Yasuyuki Kudo ,  Tsutomu Furuhashi ,  Toshio Miyazawa ,  Yoshiro Mikami ,  Hajime Akimoto ,  Norio Manba

发明人： Yasuyuki Kudo ,  Tsutomu Furuhashi ,  Toshio Miyazawa ,  Yoshiro Mikami ,  Hajime Akimoto ,  Norio Manba

IPC分类号： G09G3/36

CPC分类号： G09G3/3688 ,  G09G3/2014 ,  G09G3/3648 ,  G09G3/3655 ,  G09G2310/0259

摘要： A display apparatus having a display pixel unit including a plurality of pixels arranged in a matrix, a first driving circuit for outputting a control signal to the pixels to turn the pixels ON, the control signal depending on gray-scale information of display data, and a second driving circuit outputting a ramp waveform signal for turning the pixels on a line ON in accordance with a time-period of a scanning time-period and a scanning signal of turning the pixels on the line OFF. The ramp waveform signal includes a first ramp waveform signal and a second ramp waveform signal, and the second driving circuit outputs alternately the first and second ramp waveform signals to the pixels in accordance with the time-period of the scanning time-period.

摘要翻译： 一种具有显示像素单元的显示装置，所述显示像素单元包括以矩阵形式排列的多个像素，第一驱动电路，用于向所述像素输出控制信号以将所述像素导通，所述控制信号取决于显示数据的灰度信息;以及 输出斜坡波形信号的第二驱动电路，用于根据扫描时间段的时间段和将线路上的像素关闭的扫描信号将线路上的像素转动。 斜坡波形信号包括第一斜坡波形信号和第二斜坡波形信号，并且第二驱动电路根据扫描时间段的时间周期将第一和第二斜坡波形信号交替地输出到像素。

公开(公告)号：US08493305B2

公开(公告)日：2013-07-23

申请号：US12155951

申请日：2008-06-12

申请人： Norio Mamba ,  Naoki Takada ,  Yasuyuki Kudo ,  Tsutomu Furuhashi

发明人： Norio Mamba ,  Naoki Takada ,  Yasuyuki Kudo ,  Tsutomu Furuhashi

IPC分类号： G09G3/18

CPC分类号： G09G3/3413 ,  G09G3/3406 ,  G09G3/3611 ,  G09G2320/0242 ,  G09G2320/0646 ,  G09G2320/0666 ,  G09G2330/021 ,  G09G2340/06 ,  G09G2360/16

摘要： An image processing unit (2 in FIG. 1) discards a high gray level side of input image data (RiGiBi) in accordance with a chroma coefficient (Csc), thereby to generate a signal of lowered chroma, and it expands the signal into output image data (RoGoBo) of full scale. Besides, the image processing unit (2) generates an image adjustment parameter (Th) and performs a control so as to reduce power of backlight (6), in interlocking with the full-scale expansion.