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公开(公告)号：EP0440392A3
公开(公告)日：1992-07-15
申请号：EP91300619.3
申请日：1991-01-28
IPC分类号： G02F1/137 , G02F1/1337
CPC分类号： G02F1/1416 , G02F1/133734
摘要： Relaxation effects of a uniform mode ferroelectric liquid crystal cell with obliquely evaporated alignment layers, characterised by the reduction in apparent tilt angle consequent upon removal of a switching stimulus, are eliminated by a poling treatment that typically comprises the application of a relatively low frequency (c. 500Hz) relatively large amplitude (c. 60 volts peak-to-peak) electric potential difference across the thickness of the liquid crystal layer.
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公开(公告)号：EP0440392A2
公开(公告)日：1991-08-07
申请号：EP91300619.3
申请日：1991-01-28
IPC分类号： G02F1/137 , G02F1/1337
CPC分类号： G02F1/1416 , G02F1/133734
摘要： Relaxation effects of a uniform mode ferroelectric liquid crystal cell with obliquely evaporated alignment layers, characterised by the reduction in apparent tilt angle consequent upon removal of a switching stimulus, are eliminated by a poling treatment that typically comprises the application of a relatively low frequency (c. 500Hz) relatively large amplitude (c. 60 volts peak-to-peak) electric potential difference across the thickness of the liquid crystal layer.
摘要翻译： 具有倾斜蒸发取向层的均匀模式铁电液晶单元的弛豫效应的特征在于通过去除切换刺激而导致的表观倾斜角的减小，通过极化处理消除，通常包括施加相对较低的频率（c 500Hz）跨越液晶层的厚度的相对大的振幅（c。60伏峰 - 峰）电位差。
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公开(公告)号：EP0196905A2
公开(公告)日：1986-10-08
申请号：EP86302382.6
申请日：1986-04-01
IPC分类号： G09G3/36
CPC分类号： G09G3/3629 , G09G2310/06 , G09G2320/0209
摘要： A method of addressing a matrix addressed ferroelectric liquid crystal cell is described that uses parallel entry of balanced bipolar data pulses on one set of electrodes to co-operate with serial entry of balanced bipolar strobe pulses on the other set of electrodes. The positive- and negative-going excursions of each data pulse are asymmetric, the excursion of one polarity having 'm' times the amplitude of the other and 1/m th the duration.
摘要翻译： 描述了一种寻址矩阵寻址铁电液晶单元的方法，其使用平行双极性数据脉冲在一组电极上并行输入，以与另一组电极上的平衡双极性选通脉冲的串行输入协同工作。 每个数据脉冲的正向和负向偏移是不对称的，一个极性的偏移具有“m”倍于另一个的振幅，并且持续时间为1 / m。
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公开(公告)号：EP0251639B1
公开(公告)日：1993-03-03
申请号：EP87305552.9
申请日：1987-06-23
CPC分类号： G02F1/141 , C09K19/2021 , G02F2001/13756
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公开(公告)号：EP0197742A2
公开(公告)日：1986-10-15
申请号：EP86302380.0
申请日：1986-04-01
IPC分类号： G09G3/36
CPC分类号： G09G3/3629 , G09G2310/06 , G09G2310/061 , G09G2310/062 , G09G2310/063 , G09G2310/065 , G09G2320/0209
摘要： A method of addressing a matrix addressed ferroelectric liquid crystal cell is described that uses parallel entry of balanced bipolar data pulses on one set of electrodes to co-operate with serial entry of unipolar strobe pulses on the other set of electrodes. Data entry is preceded with blanking (erasing) pulses applied to the strobe lines. The polarity of the strobing and blanking pulses is periodically reversed to maintain charge balance in the long term.
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公开(公告)号：EP0196905A3
公开(公告)日：1989-10-18
申请号：EP86302382.6
申请日：1986-04-01
IPC分类号： G09G3/36
CPC分类号： G09G3/3629 , G09G2310/06 , G09G2320/0209
摘要： A method of addressing a matrix addressed ferroelectric liquid crystal cell is described that uses parallel entry of balanced bipolar data pulses on one set of electrodes to co-operate with serial entry of balanced bipolar strobe pulses on the other set of electrodes. The positive- and negative-going excursions of each data pulse are asymmetric, the excursion of one polarity having 'm' times the amplitude of the other and 1/m th the duration.
摘要翻译： 描述了寻址矩阵寻址铁电液晶单元的方法，该方法使用平行双极数据脉冲在一组电极上的并行输入来与另一组电极上的平衡双极选通脉冲的串行输入协作。 每个数据脉冲的正向偏移和负向偏移是不对称的，一个极性的偏移具有'm'乘以另一个的幅度和持续时间的1 / m。
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公开(公告)号：EP0197742A3
公开(公告)日：1989-03-01
申请号：EP86302380.0
申请日：1986-04-01
IPC分类号： G09G3/36
CPC分类号： G09G3/3629 , G09G2310/06 , G09G2310/061 , G09G2310/062 , G09G2310/063 , G09G2310/065 , G09G2320/0209
摘要： A method of addressing a matrix addressed ferroelectric liquid crystal cell is described that uses parallel entry of balanced bipolar data pulses on one set of electrodes to co-operate with serial entry of unipolar strobe pulses on the other set of electrodes. Data entry is preceded with blanking (erasing) pulses applied to the strobe lines. The polarity of the strobing and blanking pulses is periodically reversed to maintain charge balance in the long term.
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公开(公告)号：EP0197742B1
公开(公告)日：1992-07-22
申请号：EP86302380.0
申请日：1986-04-01
IPC分类号： G09G3/36
CPC分类号： G09G3/3629 , G09G2310/06 , G09G2310/061 , G09G2310/062 , G09G2310/063 , G09G2310/065 , G09G2320/0209
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公开(公告)号：EP0251639A1
公开(公告)日：1988-01-07
申请号：EP87305552.9
申请日：1987-06-23
CPC分类号： G02F1/141 , C09K19/2021 , G02F2001/13756
摘要： Bistable switching between clear and scattering states is provided by a liquid crystal cell whose liquid crystal layer is constituted by a random orientation planar aligned ferroelectric smectic exhibiting a pitch length comparable with the wavelength of visible light.
摘要翻译： 透明和散射状态之间的双稳态切换由液晶单元提供，该液晶单元的液晶层由表现出与可见光波长可比的间距长度的随机取向平面排列铁电体层构成。
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