-
公开(公告)号：US06320562B1
公开(公告)日：2001-11-20
申请号：US09126619
申请日：1998-07-31
IPC分类号： G09G336
CPC分类号： G09G3/3644 , G09G3/3614 , G09G3/3625 , G09G2320/0209
摘要： A liquid crystal display device having a plurality of row electrodes to which a scanning voltage is applied; a plurality of column electrodes provided so as to cross the plurality of row electrodes, to which a display data voltage is applied; and a liquid crystal layer interposed between the plurality of row electrodes and the plurality of column electrodes, which provides a display function at intersections between the plurality of row electrodes and the plurality of column electrodes in response to a RMS value of a voltage applied between the plurality of row electrodes and the plurality of column electrodes, includes: a section for outputting a display data signal representing the display data voltage having three or more voltage levels; a compensation circuit for outputting a compensation data signal based on a RMS value difference between the display data voltage and a respective resultant display data voltage applied to the plurality of column electrodes; and a driving circuit for applying a compensation voltage to at least one of the plurality of column electrodes based on the compensation data signal.
摘要翻译： 一种具有施加扫描电压的多个行电极的液晶显示装置; 多个列电极，设置成与施加了显示数据电压的多个行电极交叉; 以及插入在所述多个行电极和所述多个列电极之间的液晶层，其响应于施加在所述多个列电极和所述多个列电极之间的电压的RMS值而在所述多个行电极和所述多个列电极之间的交叉处提供显示功能 多个行电极和多个列电极包括：用于输出表示具有三个或更多个电压电平的显示数据电压的显示数据信号的部分; 补偿电路，用于根据施加到多个列电极的显示数据电压和相应的合成显示数据电压之间的RMS值差输出补偿数据信号; 以及驱动电路，用于基于补偿数据信号向多个列电极中的至少一个施加补偿电压。
-
公开(公告)号：US5610628A
公开(公告)日：1997-03-11
申请号：US447246
申请日：1995-05-22
申请人： Kunihiko Yamamoto , Kiyohisa Matsui , Yutaka Ishii , Norio Yasunishi , Toshihiro Nakamura , Hajime Washio , Koki Taniguchi
发明人： Kunihiko Yamamoto , Kiyohisa Matsui , Yutaka Ishii , Norio Yasunishi , Toshihiro Nakamura , Hajime Washio , Koki Taniguchi
IPC分类号： G09G3/36
CPC分类号： G09G3/3696 , G09G3/3625
摘要： A driving device for a display apparatus having excellent contrast and a high display quality without crosstalk and display irregularities, and a driving method for the same are provided. In the driving device, scanning signals and data signals having a plurality of periodical inactive portions in one frame are applied to respective display dots. In the inactive term, a fixed voltage is applied to each of the display dots. The signal applied to the display dot is divided into small terms by the inactive portions, resulting in more high frequency components in a voltage signal applied to the display dot. As a result, the frequency components of a driving signal applied to the display dot are averaged. Further, a complete orthogonal function having 2.sup.r base function series is used, and a desired display data is completely reproduced on the display apparatus by an arithmetic process assuming auxiliary data in accordance with the number of the scanning electrodes.
-
公开(公告)号：US5786799A
公开(公告)日：1998-07-28
申请号：US531169
申请日：1995-09-19
CPC分类号： G09G3/3625
摘要： A driving method for a liquid crystal display is provided with the steps of (a) applying a row select voltage to each of the row electrodes simultaneously, the row select voltage corresponding to an element of an orthogonal matrix and being either +1 or -1 ; (b) conducting an exclusive-or operation with respect to each element of a row select vector and a display vector, the row select vector indicating the row select voltages by vector notation and the display vector indicating a display data by the vector notation, and conducting a summation of each exclusive-or operation; (c) applying to the column electrode a voltage of a level which varies depending on the summation so as to simultaneously drive the plurality of rows; and (d) in a case where all the display data correspond to ON display or OFF display in the step (c), assigning the row select voltage, applied to either the selected row electrode having the lowest select voltage among driving voltages within one frame period for the ON display or the selected row electrode having the highest select voltage among the driving voltages within one frame period for the OFF display, to a virtual row electrode outside a display area, and applying a virtual display data to the virtual row electrode.
摘要翻译： 液晶显示器的驱动方法具有以下步骤：（a）同时向各行电极施加行选择电压，对应于正交矩阵的元素的行选择电压为+1或-1 ; （b）针对行选择向量和显示向量的每个元素执行排他或操作，所述行选择向量通过向量符号指示行选择电压，以及通过向量符号表示显示数据的显示向量，以及 进行每项专属或操作的总和; （c）向列电极施加电压，该电压根据求和而变化，以同时驱动多个行; 和（d）在步骤（c）中所有显示数据对应于ON显示或OFF显示的情况下，分配施加到一个帧内的驱动电压中具有最低选择电压的所选行电极的行选择电压 对于在OFF显示的一个帧周期内的驱动电压中具有最高选择电压的ON显示的周期或显示区域外的虚拟行电极，并将虚拟显示数据应用于虚拟行电极。
-
公开(公告)号：US5594466A
公开(公告)日：1997-01-14
申请号：US132651
申请日：1993-10-05
申请人： Kunihiko Yamamoto , Kiyohisa Matsui , Yutaka Ishii , Norio Yasunishi , Toshihiro Nakamura , Hajime Washio , Koki Taniguchi
发明人： Kunihiko Yamamoto , Kiyohisa Matsui , Yutaka Ishii , Norio Yasunishi , Toshihiro Nakamura , Hajime Washio , Koki Taniguchi
IPC分类号： G09G3/36
CPC分类号： G09G3/3696 , G09G3/3625
摘要： A driving device for a display apparatus having excellent contrast and a high display quality without crosstalk and display irregularities, and a driving method for the same are provided. In the driving device, scanning signals and data signals having a plurality of periodical inactive portions in one frame are applied to respective display dots. In the inactive term, a fixed voltage is applied to each of the display dots. The signal applied to the display dot is divided into small terms by the inactive portions, resulting in more high frequency components in a voltage signal applied to the display dot. As a result, the frequency components of a driving signal applied to the display dot are averaged. Further, a complete orthogonal function having 2.sup.r base function series is used, and a desired display data is completely reproduced on the display apparatus by an arithmetic process assuming auxiliary data in accordance with the number of the scanning electrodes.
摘要翻译： 提供了具有优异的对比度和高显示质量而没有串扰和显示不规则的显示装置的驱动装置及其驱动方法。 在驱动装置中，在一个帧中具有多个周期性非活动部分的扫描信号和数据信号被施加到各个显示点。 在无效项中，对每个显示点施加固定电压。 施加到显示点的信号被非活动部分分成小项，导致施加到显示点的电压信号中的更高频率分量。 结果，施加到显示点的驱动信号的频率分量被平均。 此外，使用具有2r基本功能系列的完整正交函数，并且通过假设根据扫描电极的数量的辅助数据的算术处理在显示装置上完全再现期望的显示数据。
-
公开(公告)号：US06597335B2
公开(公告)日：2003-07-22
申请号：US09259507
申请日：1999-02-26
申请人： Norio Yasunishi , Satoshi Ueno
发明人： Norio Yasunishi , Satoshi Ueno
IPC分类号： G09G336
CPC分类号： G09G3/3644 , G09G3/2018 , G09G3/2029 , G09G3/3625 , G09G3/3692
摘要： A method for driving a liquid crystal display device is provided. The device includes a plurality of row electrodes to which a scanning signal is applied: a plurality of column electrodes disposed so as to cross the plurality of row electrodes, to which a display data signal is applied; and a liquid crystal layer interposed between one of the plurality of row electrodes and one of the plurality of column electrodes, for performing a display at a crossing portion of one of the plurality of row electrodes and one of the plurality of column electrodes in response to an effective value of a voltage applied across one of the plurality of row electrodes and one of the plurality of column electrodes, wherein gray-scale display data consisting of a plurality of bits is received, and a voltage of a display data signal selected per bit by a scanning signal is applied during a period in which weights are assigned to bits during one horizontal scanning period and a voltage applying timing is made different at at least one column electrode, whereby a gray-scale display is realized.
摘要翻译： 提供一种驱动液晶显示装置的方法。 该装置包括施加有扫描信号的多个行电极：多个列电极，其设置成与应用了显示数据信号的多个行电极交叉; 以及插入在所述多个行电极之一和所述多个列电极中的一个之间的液晶层，用于响应于所述多个列电极中的一个行电极和所述多个列电极中的一个的交叉部分进行显示 施加在多个行电极中的一个上的电压和多个列电极中的一个的电压的有效值，其中接收由多个位组成的灰度显示数据，并且每位选择显示数据信号的电压 在一个水平扫描周期期间将权重分配给比特的周期期间施加扫描信号，并且在至少一个列电极上使电压施加定时不同，从而实现灰度显示。
-
公开(公告)号：US07042940B2
公开(公告)日：2006-05-09
申请号：US09919697
申请日：2001-07-31
申请人： Norio Yasunishi , Futoshi Satoh
发明人： Norio Yasunishi , Futoshi Satoh
IPC分类号： H04N7/12
CPC分类号： H04N11/042 , H04N19/184 , H04N19/186 , H04N19/59
摘要： A digital video signal transmission apparatus is provided with (a) a digital video signal conversion circuit for converting each chrominance signal of an input digital video signal in such a manner that every plural frames (1) in one frame of the plural frames each chrominance signal is converted into a signal having plural bits, (2) in the other frames of the plural frames, each chrominance signal is converted into a signal having 1 bit, so that an average of gradation levels of the respective chrominance signals in plural frames after the conversion is substantially equal to gradation levels of the respective chrominance signals in a single frame before conversion, (b) a flag signal generation circuit for generating a flag signal for setting the respective chrominance signals in each pixel signal, so that one of the chrominance signal has plural bits, while the other chrominance signal has one bit, (c) a converted data combination circuit for assigning each signal to each of the chrominance signal in accordance with the flag signal, and (d) a bit expansion circuit for carrying out bit expansion of the digital video signal in accordance with the flag signal, so that each chrominance signal has an identical number of bits in each pixel signal. This provides an image display apparatus that can reduce a data amount of the digital video signal which is transmitted via a data transmission path.
-
公开(公告)号：US06850251B1
公开(公告)日：2005-02-01
申请号：US09489383
申请日：2000-01-21
申请人： Norio Yasunishi , Futoshi Satoh
发明人： Norio Yasunishi , Futoshi Satoh
CPC分类号： G09G3/2051 , G09G3/2014 , G09G3/3611
摘要： A control circuit for use in a display device capable of displaying gray scale including a plurality of column electrodes and a plurality of row electrodes intersecting each other and pixels provided around the intersections thereof, includes a display data converting section for receiving input display data, dividing the input display data into binary display data and gray scale display data in such a manner as to enable pulse width modulation one frame in a plurality of frames, and outputting the binary display data and the gray scale display data: a pulse controlling section for determining the timing of applying a voltage to each of the plurality of column electrodes for the gray scale display data; and a column electrode driving section for applying a voltage corresponding to the gray scale display data to at least one said column electrode based on the timing of applying a voltage determined by the pulse controlling section.
摘要翻译： 一种用于能够显示灰度级的显示装置的控制电路，其包括彼此相交的多个列电极和多个行电极以及设置在其交点周围的像素，包括显示数据转换部分，用于接收输入显示数据，分割 输入显示数据为二进制显示数据和灰度显示数据，使得能够在多个帧中进行一帧的脉宽调制，并输出二进制显示数据和灰度显示数据：脉冲控制部分，用于确定 将用于灰度显示数据的多个列电极中的每一个施加电压的定时; 以及列电极驱动部分，用于基于施加由脉冲控制部分确定的电压的定时，将对应于灰度显示数据的电压施加到至少一个所述列电极。
-
公开(公告)号：US06900796B2
公开(公告)日：2005-05-31
申请号：US09748502
申请日：2000-12-26
申请人： Norio Yasunishi , Futoshi Satoh
发明人： Norio Yasunishi , Futoshi Satoh
CPC分类号： G09G3/3622 , G09G2320/0209 , G09G2320/0223
摘要： A method for driving a liquid crystal display device including a plurality of row electrodes intersecting a plurality of column electrodes, a scanning voltage applied to each of the row electrodes, and a signal voltage applied to each of the column electrodes, the method comprising the steps of: a) determining, for each of the column electrodes, correction data for correcting the signal voltage based on an increment or a decrement of an effective voltage value between each of row electrodes and each of the column electrodes; and b) applying a correction voltage for correcting the signal voltage to each of the column electrodes in accordance with the correction data. An increment or decrement of the effective voltage value may be due to i) at least either a blunt waveform or induced distortion of the signal voltage or ii) at least either a blunt waveform or induced distortion of the scanning voltage, or iii) both.
摘要翻译： 一种用于驱动液晶显示装置的方法，该液晶显示装置包括与多个列电极相交的多个行电极，施加到每个行电极的扫描电压和施加到每个列电极的信号电压，该方法包括步骤 a）为每个列电极确定用于基于行电极和每个列电极之间的有效电压值的增量或减量来校正信号电压的校正数据; 以及b）根据校正数据施加用于校正每个列电极的信号电压的校正电压。 有效电压值的增量或减量可能是由于i）钝器波形或信号电压的诱发失真中的至少一个或者ii）平坦波形或扫描电压的诱发失真中的至少一个，或者iii）两者。
-
公开(公告)号：US06229583B1
公开(公告)日：2001-05-08
申请号：US09592545
申请日：2000-06-12
申请人： Norio Yasunishi
发明人： Norio Yasunishi
IPC分类号： G02F1133
CPC分类号： G09G3/2011 , G09G3/2025 , G09G3/2029 , G09G3/2081 , G09G3/3622 , G09G3/3625 , G09G3/3644
摘要： A liquid crystal display device including a liquid crystal panel is disclosed. The liquid crystal display device includes: a display data transformer for receiving input image data for one frame, for dividing a selection period for each row electrode in the frame into subframes of a number equal to or greater than a number of gray-scale bits representing a gray-scale level of the input image data, the scanning signal being applied to the row electrode during the corresponding selection period, and for generating binary display data in which respective binary data is associated with each subframe according to the gray-scale bits. The Liquid crystal display device further includes a pulse width controller for controlling the division of the selection period in the display data transformer and for setting a respective subframe period independently for each subframe; and a pulse amplitude controller for transforming the binary display data by setting a respective voltage amplitude independently for each subframe according to the binary display data so as to generate a display signal having a respective voltage value set independently for each subframe.
摘要翻译： 公开了一种包括液晶面板的液晶显示装置。 液晶显示装置包括：显示数据变换器，用于接收一帧的输入图像数据，用于将帧中的每个行电极的选择周期分成等于或大于表示的灰度位数的数量的子帧 输入图像数据的灰度级，扫描信号在相应的选择周期期间施加到行电极，并且用于生成二进制显示数据，其中相应的二进制数据根据灰度比特与每个子帧相关联。 液晶显示装置还包括：脉冲宽度控制器，用于控制显示数据变换器中的选择周期的分割，并且为每个子帧独立设置各个子帧周期; 以及脉冲幅度控制器，用于通过根据二进制显示数据为每个子帧独立设置各个电压振幅来变换二进制显示数据，以便产生具有为每个子帧独立设置的各个电压值的显示信号。
-
公开(公告)号：US6094243A
公开(公告)日：2000-07-25
申请号：US825031
申请日：1997-03-26
申请人： Norio Yasunishi
发明人： Norio Yasunishi
CPC分类号： G09G3/2011 , G09G3/3622 , G09G3/3625 , G09G3/3644 , G09G3/2025 , G09G3/2029 , G09G3/2081
摘要： A liquid crystal display device including a liquid crystal panel is disclosed. The liquid crystal display device includes: a display data transformer for receiving input image data for one frame, for dividing a selection period for each row electrode in the frame into subframes of a number equal to or greater than a number of gray-scale bits representing a gray-scale level of the input image data, the scanning signal being applied to the row electrode during the corresponding selection period, and for generating binary display data in which respective binary data is associated with each subframe according to the gray-scale bits. The Liquid crystal display device further includes a pulse width controller for controlling the division of the selection period in the display data transformer and for setting a respective subframe period independently for each subframe; and a pulse amplitude controller for transforming the binary display data by setting a respective voltage amplitude independently for each subframe according to the binary display data so as to generate a display signal having a respective voltage value set independently for each subframe.
摘要翻译： 公开了一种包括液晶面板的液晶显示装置。 液晶显示装置包括：显示数据变换器，用于接收一帧的输入图像数据，用于将帧中的每个行电极的选择周期分成等于或大于表示的灰度位数的数量的子帧 输入图像数据的灰度级，扫描信号在相应的选择周期期间施加到行电极，并且用于生成二进制显示数据，其中相应的二进制数据根据灰度比特与每个子帧相关联。 液晶显示装置还包括：脉冲宽度控制器，用于控制显示数据变换器中的选择周期的分割，并且为每个子帧独立设置各个子帧周期; 以及脉冲幅度控制器，用于通过根据二进制显示数据为每个子帧独立设置各个电压振幅来变换二进制显示数据，以便产生具有为每个子帧独立设置的各个电压值的显示信号。
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.021 秒)
