公开(公告)号：US06215533B1

公开(公告)日：2001-04-10

申请号：US08854559

申请日：1997-05-12

申请人： Mitsuhiro Shigeta ,  Jonathan Rennie Hughes ,  Paul Bonnett ,  Edward Peter Raynes ,  Akira Tagawa ,  Michael John Towler ,  Harry Garth Walton ,  David Scattergood

发明人： Mitsuhiro Shigeta ,  Jonathan Rennie Hughes ,  Paul Bonnett ,  Edward Peter Raynes ,  Akira Tagawa ,  Michael John Towler ,  Harry Garth Walton ,  David Scattergood

IPC分类号： G02F1141

CPC分类号： G09G3/3696 ,  G09G3/3629 ,  G09G3/3692 ,  G09G2310/06 ,  G09G2310/066 ,  G09G2320/041 ,  G09G2330/021

摘要： A ferroelectric liquid crystal device includes a layer of ferroelectric liquid crystal material contained between a pair of substrates, a first plurality of electrodes and a second plurality of electrodes defining a plurality of addressable liquid crystal pixels. A driving arrangement is provided for applying a first signal (Strobe) in succession to the first plurality of electrodes and for applying a plurality of second signals (Data) simultaneously to the second plurality of electrodes. The plurality of second signals are arranged to include non-rectangular wave signals which have a lower harmonic content than a rectangular wave. Non-uniform heating of the device as a result of the application of the second signals (Data) is reduced with consequent improvement in device performance.

摘要翻译： 铁电液晶器件包括一对基板之间的铁电液晶材料层，第一多个电极和限定多个可寻址液晶像素的第二多个电极。 提供驱动装置，用于连续地对第一多个电极施加第一信号（频闪），并且同时向多个第二电极施加多个第二信号（Data）。 多个第二信号被布置成包括具有比矩形波低的谐波含量的非矩形波信号。 作为施加第二信号（Data）的结果，装置的不均匀加热减少，从而提高了器件性能。

公开(公告)号：US6075506A

公开(公告)日：2000-06-13

申请号：US801548

申请日：1997-02-18

申请人： Paul Bonnett ,  Michael John Towler ,  Akira Tagawa

发明人： Paul Bonnett ,  Michael John Towler ,  Akira Tagawa

IPC分类号： G02F1/133 ,  G02F1/1335 ,  G02F1/1343 ,  G09G3/20 ,  G09G3/36

CPC分类号： G09G3/3629 ,  G02F1/133528 ,  G02F2001/133531 ,  G02F2001/134345 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2320/041 ,  G09G3/2007

摘要： A display such as a ferroelectric liquid crystal display includes a matrix of pixels, for instance formed at the intersections of data electrodes and strobe electrodes. In order to address an intermediate grey level, each pixel is switched from the normally black mode to the grey level in odd frames and from the normally white mode to the grey level in even frames. Variations in the grey levels, for instance caused by temperature variations, act in opposite directions so that the average grey level over time of the pixel varies relatively little.

摘要翻译： 诸如铁电液晶显示器的显示器包括例如在数据电极和选通电极的交点处形成的像素矩阵。 为了解决中间灰度级，每个像素在奇数帧中从正常黑模式切换到灰度级，在偶数帧中从常白模式切换到灰度级。 灰度级的变化，例如由温度变化引起的，以相反的方向起作用，使像素随时间变化的平均灰度变化相对较小。

公开(公告)号：US6061043A

公开(公告)日：2000-05-09

申请号：US801549

申请日：1997-02-18

申请人： Paul Bonnett ,  Michael John Towler ,  Akira Tagawa

发明人： Paul Bonnett ,  Michael John Towler ,  Akira Tagawa

IPC分类号： G02F1/133 ,  G02F1/1335 ,  G02F1/1343 ,  G09G3/20 ,  G09G3/36

CPC分类号： G09G3/3629 ,  G02F1/133528 ,  G02F2001/133531 ,  G02F2001/134345 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2320/041 ,  G09G3/2007

摘要： A liquid crystal display which includes a matrix of pixels, for instance formed at the intersections of data electrodes and split strobe electrodes. Each pixel is divided into first and second sub-pixels. The first sub-pixels have input and output polarisers whose polarization directions are parallel, whereas the second sub-pixels have input and output polarisers whose polarization directions are orthogonal. In order to address and achieve grey levels with reduced variations due to temperature variations and liquid crystal variations, the sub-pixels are switched to a grey level in accordance with a spatial averaging technique. Variations in the grey levels of the sub-pixels, for instance caused by temperature variations, act in opposite directions so that the average grey level of the whole pixel varies relatively little.

摘要翻译： 一种液晶显示器，其包括例如形成在数据电极和分离的选通电极的交点处的像素矩阵。 每个像素被分成第一和第二子像素。 第一子像素具有偏振方向平行的输入和输出偏振器，而第二子像素具有偏振方向正交的输入和输出偏振器。 为了解决和实现由于温度变化和液晶变化而减小的变化的灰度级，根据空间平均技术将子像素切换到灰度级。 子像素的灰度级变化，例如由温度变化引起的，以相反的方向作用，使得整个像素的平均灰度级变化相对较小。

公开(公告)号：US06271820B1

公开(公告)日：2001-08-07

申请号：US09080164

申请日：1998-05-15

申请人： Harald Reinhart Bock ,  Paul Bonnett ,  Michael John Towler ,  Diana Cynthia Ulrich ,  Akira Tagawa

发明人： Harald Reinhart Bock ,  Paul Bonnett ,  Michael John Towler ,  Diana Cynthia Ulrich ,  Akira Tagawa

IPC分类号： G06G336

CPC分类号： G09G3/364 ,  G09G3/2029 ,  G09G2310/06

摘要： A light modulating device comprises a plurality of data electrodes, a plurality of strobe electrodes, pixels at the intersections of the strobe and data electrodes, and addressing means for supplying data signals to the data electrodes in successive data selection periods and for supplying strobe signals to the strobe electrodes to set the transmission levels of the pixels in dependence on the data signals supplied to the pixels during each data selection period. Each pixel comprises a pair of subelements, and the addressing means is arranged to address the subelements of the pair by 1:3 spatial dither and to supply different strobe signals to each of the subelements during different bits of 1:1 spatial or temporal dither within the same data selection period. The transmission level of each subelement is determined by the data signal applied to the subelement in the data selection period in association with the strobe signal applied to the corresponding spatial or temporal dither bit.

摘要翻译： 光调制装置包括多个数据电极，多个选通电极，选通脉冲和数据电极的交点处的像素，以及寻址装置，用于在连续的数据选择周期中向数据电极提供数据信号，并将选通信号提供给 所述选通电极根据在每个数据选择期间提供给像素的数据信号来设置像素的透射电平。 每个像素包括一对子元件，并且寻址装置被布置成以1：3空间抖动寻址该对的子元素，并且在1：1的空间或时间抖动的不同位期间向每个子元件提供不同的选通信号 相同的数据选择期。 每个子元件的发送电平由在数据选择周期中与施加到对应的空间或时间抖动比特的选通信号相关联的数据信号确定。

公开(公告)号：US06232943B1

公开(公告)日：2001-05-15

申请号：US09040805

申请日：1998-03-18

申请人： Akira Tagawa ,  Keisaku Nonomura ,  Paul Bonnett ,  Michael John Towler

发明人： Akira Tagawa ,  Keisaku Nonomura ,  Paul Bonnett ,  Michael John Towler

IPC分类号： G09G336

CPC分类号： G09G3/3637 ,  G09G3/207 ,  G09G2310/021 ,  G09G2310/06 ,  G09G2310/061

摘要： Given a natural number “n”, then, in the first frame of continuous two frames, strobe pulses of opposite polarities are applied respectively to a scanning electrode L2n−1 in a (2n−1)'th line and a scanning electrode L2n in a 2n'th line during a selection period. In the second frame, strobe pulses of opposite polarities are applied respectively to the scanning electrode L2n in the 2n'th line and a scanning electrode L2n+1 in a (2n+1)'th line during a selection period.

摘要翻译： 给定自然数“n”，则在连续两帧的第一帧中，相反极性的选通脉冲分别施加到第（2n-1）行中的扫描电极L2n-1和扫描电极L2n中 在选择期间的第2n行。 在第二帧中，在选择期间，分别向第2n行的扫描电极L2n和第（2n + 1）行的扫描电极L2n + 1施加相反极性的选通脉冲。

公开(公告)号：US5764211A

公开(公告)日：1998-06-09

申请号：US537511

申请日：1995-10-02

申请人： Akira Tagawa ,  Paul Bonnett ,  Michael John Towler

发明人： Akira Tagawa ,  Paul Bonnett ,  Michael John Towler

IPC分类号： G02F1/133 ,  G09G3/20 ,  G09G3/36 ,  G02F1/13

CPC分类号： G09G3/3629 ,  G09G2310/06 ,  G09G3/2011 ,  G09G3/2014

摘要： A ferroelectric liquid crystal display includes data electrodes connected to a data signal generator and strobe electrodes connected to a strobe signal generator. The strobe signal generator supplies strobe signals in sequence to the strobe electrodes within a plurality of consecutive time slots and the data signal generator supplies data signals simultaneously and in synchronism with the strobe signals so as to refresh sequentially the rows of pixels formed at the intersections of the data electrodes and the strobe electrodes, each pixel having at least two switching thresholds. Each of the strobe signals comprises a strobe pulse within a corresponding one of the time slots, the strobe pulse being preceded by a pre-pulse which reduces the effects of pixel patterning caused by refreshing the previously refreshed row of pixels. The pre-pulse extends within a time slot preceding the corresponding one of the plurality of consecutive time slots. The duration of the pre-pulse is greater than the duration of one of the plurality of consecutive time slots.

摘要翻译： 铁电液晶显示器包括连接到数据信号发生器的数据电极和连接到选通信号发生器的选通电极。 选通信号发生器在多个连续时隙内依次向选通电极提供选通信号，并且数据信号发生器同时提供数据信号并与选通信号同步，以顺序刷新形成在交点处的像素行 数据电极和选通电极，每个像素具有至少两个切换阈值。 每个选通信号包括相应一个时隙内的选通脉冲，该选通脉冲前面有一个预脉冲，该预脉冲减少了由刷新先前刷新的像素行引起的像素图案的影响。 预脉冲在多个连续时隙中相应的一个之前的时隙内延伸。 预脉冲的持续时间大于多个连续时隙之一的持续时间。

公开(公告)号：US6137463A

公开(公告)日：2000-10-24

申请号：US86039

申请日：1998-05-28

申请人： Akira Tagawa ,  Paul Bonnett ,  Michael John Towler

发明人： Akira Tagawa ,  Paul Bonnett ,  Michael John Towler

IPC分类号： G02F1/133 ,  G09G3/36 ,  G02F1/13

CPC分类号： G09G3/3629 ,  G09G2310/0205 ,  G09G2310/06

摘要： A ferroelectric liquid crystal display comprises data electrodes and strobe electrodes which are connected to data and signal generators. The strobe signal generator supplies strobe signals sequentially to groups of more than one strobe electrode. For instance, the strobe electrodes may be strobed in pairs with the strobe signals being supplied simultaneously to the electrodes of each pair. The data signal generator supplies any of a plurality of different data signals to each of the data electrodes in synchronism with the strobe signals. The data signals are such that all combinations of optical states for the pixels which are connected to the same data electrode and which are strobed simultaneously can be achieved.

摘要翻译： 铁电液晶显示器包括连接到数据和信号发生器的数据电极和选通电极。 选通信号发生器将选通信号顺序地提供给多于一个选通电极的组。 例如，选通电极可以与选通信号成对地选通，同时被提供给每对电极。 数据信号发生器与选通信号同步地向数据电极提供多个不同的数据信号中的任一个。 数据信号使得可以实现连接到同一数据电极并同时选通的像素的光学状态的所有组合。

公开(公告)号：US5844537A

公开(公告)日：1998-12-01

申请号：US550537

申请日：1995-10-30

申请人： Paul Bonnett ,  Akira Tagawa ,  Michael John Towler

发明人： Paul Bonnett ,  Akira Tagawa ,  Michael John Towler

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

CPC分类号： G09G3/3629 ,  G09G2310/06 ,  G09G3/2011

摘要： A ferroelectric liquid crystal display contains data electrodes connected to a data signal generator and strobe electrodes connected to a strobe signal generator. The strobe signal generator supplies strobe signals Vs1 to Vs4 in sequence to the strobe electrodes and the data signal generator supplies data signals Vd1 to Vd4 simultaneously and in synchronism with the strobe signals so as to refresh sequentially the rows of pixels formed at the intersections of the data electrodes and the strobe electrodes. Each data signal is selected from a plurality having the same polarity behaviour with respect to time, the same RMS voltage, and no net DC component.

摘要翻译： 铁电液晶显示器包括连接到数据信号发生器的数据电极和连接到选通信号发生器的选通电极。 选通信号发生器依次向选通电极提供选通信号Vs1至Vs4，并且数据信号发生器同时提供数据信号Vd1至Vd4并与选通信号同步，以顺序地刷新形成在 数据电极和选通电极。 每个数据信号从具有相对于时间，相同RMS电压和没有净DC分量的相同极性特性的多个中选择。

公开(公告)号：US5940060A

公开(公告)日：1999-08-17

申请号：US537468

申请日：1995-10-02

申请人： Edward Peter Raynes ,  Paul Bonnett

发明人： Edward Peter Raynes ,  Paul Bonnett

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

CPC分类号： G09G3/3637 ,  G09G2320/0209 ,  G09G3/2011 ,  G09G3/207

摘要： A ferroelectric liquid crystal cell is controlled by applying a strobe pulse and a data pulse to the cell, the magnitude of the data pulse being modulated in order to control the resultant pulse applied to the cell. The resultant pulse includes a pre-pulse on one polarity and a main pulse of the opposite polarity. When applied to a liquid crystal cell of stepped thickness, the application of data pulses of different magnitudes switches regions of different thicknesses of the cell so as to provide grey level capability.

摘要翻译： 通过向单元施加选通脉冲和数据脉冲来控制铁电液晶单元，数据脉冲的幅度被调制以便控制施加到单元的合成脉冲。 所得到的脉冲包括一个极性的预脉冲和相反极性的主脉冲。 当施加到阶梯厚度的液晶单元时，应用不同大小的数据脉冲来切换单元不同厚度的区域，以提供灰度级能力。

公开(公告)号：US06417826B1

公开(公告)日：2002-07-09

申请号：US09245274

申请日：1999-02-05

申请人： Paul Bonnett ,  Michael John Towler ,  Diana Cynthia Ulrich

发明人： Paul Bonnett ,  Michael John Towler ,  Diana Cynthia Ulrich

IPC分类号： G09G336

CPC分类号： G09G3/3629 ,  G09G3/2018 ,  G09G3/2074 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2320/0261

摘要： A method of addressing a liquid crystal device having a plurality of scanning electrodes and a plurality of data electrodes defining a plurality of pixels at the intersections between at least one of the plurality of scanning electrodes and at least one of the plurality of data electrodes, the method comprising applying one frame of a scanning signal to one of the plurality of scanning electrodes, applying a data signal to at least one of the plurality of data electrodes, one frame of the scanning signal comprising n strobe portions, where n is an integer greater than 1, for co-operation with the at least one data signal to address one of the plurality of pixels, and at least one blanking portion, the number of blanking portions not exceeding (n−1).

摘要翻译： 一种寻址具有多个扫描电极和多个数据电极的液晶装置的方法，所述多个扫描电极和多个数据电极在所述多个扫描电极中的至少一个与所述多个数据电极中的至少一个之间的交点处限定多个像素， 该方法包括将扫描信号的一帧应用于所述多个扫描电极之一，将数据信号施加到所述多个数据电极中的至少一个数据电极，所述扫描信号的一帧包括n个选通部分，其中n为更大的整数 1以上，与至少一个数据信号进行协调以寻址多个像素中的一个，以及至少一个消隐部分，不超过（n-1）的消隐部分的数量。