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公开(公告)号：US5592190A
公开(公告)日：1997-01-07
申请号：US233818
申请日：1994-04-26
申请人： Shinjiro Okada , Shuzo Kaneko , Yutaka Inaba , Katsuhiko Shinjo , Hirokatsu Miyata , Kazunori Katakura
发明人： Shinjiro Okada , Shuzo Kaneko , Yutaka Inaba , Katsuhiko Shinjo , Hirokatsu Miyata , Kazunori Katakura
CPC分类号： G09G3/3637 , G09G2310/0227 , G09G2310/06 , G09G2310/061 , G09G2310/065 , G09G2320/0209 , G09G2320/0247 , G09G2320/041 , G09G3/2011 , G09G3/2014 , G09G3/207
摘要： A liquid crystal display device having a matrix of pixels is driven for gradational display with better temperature compensation and better flicker suppression by a driving method, wherein (a) a first voltage signal is applied to a pixel on a selected scanning line, the first voltage signal including a clear pulse, a writing pulse of a polarity opposite to that of the clear pulse and a correction pulse of a polarity opposite to that of the writing pulse,(b) a second voltage signal is applied to an associated pixel on a subsequent scanning line, the second voltage signal including a clear pulse, a writing pulse and a correction pulse of which polarities are respectively opposite to corresponding pulses of the first voltage signal, and (c) the correction pulse applied to the pixel on the selected scanning line is determined based on gradation data for the associated pixel on the subsequent scanning line, and the writing pulse applied to the pixel on the selected scanning line is determined based on gradation data for the pixel on the selected scanning line and the above-determined correction pulse.
摘要翻译： 具有像素矩阵的液晶显示装置被驱动以通过驱动方法具有更好的温度补偿和更好的闪烁抑制的等级显示，其中（a）第一电压信号被施加到所选择的扫描线上的像素，第一电压 包括清除脉冲的信号，与清除脉冲的极性相反的写入脉冲和与写入脉冲的极性相反的极性的校正脉冲，（b）第二电压信号被施加到随后的相关像素 扫描线，所述第二电压信号包括清除脉冲，写入脉冲和其极性分别与所述第一电压信号的相应脉冲相反的校正脉冲，以及（c）施加到所述选择的扫描线上的像素的校正脉冲 基于后续扫描线上的相关像素的灰度数据确定，并且施加到所选择的扫描线上的像素的写入脉冲是确定的 基于所选择的扫描线上的像素的灰度数据和上述确定的校正脉冲。
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公开(公告)号：US5581381A
公开(公告)日：1996-12-03
申请号：US254065
申请日：1994-06-03
IPC分类号： G02F1/1333 , G02F1/137 , G02F1/141 , G02F1/1343
CPC分类号： G02F1/133371 , G02F1/141
摘要： A liquid crystal device is constituted by a pair of substrates having mutually opposing electrodes thereon, and a liquid crystal layer disposed between the substrates so as to form a pixel comprising a pair of the opposing electrodes and the liquid crystal layer therebetween. The liquid crystal layer in a pixel is divided into a plurality of regions having mutually different liquid crystal layer thicknesses, and the pixel is constituted so as to show an applied voltage-transmittance characteristic having an improved linearity. More specifically, for example, the liquid crystal layer in a pixel is provided with locally varying thicknesses by forming on a substrate pluralities of stripe-shaped projections and indentations at locally different indentation widths so that the projections have a smaller width in a region having a smaller indentation width than in a region having a larger indentation width.
摘要翻译： 液晶装置由在其上具有相互相对电极的一对基板和设置在基板之间的液晶层构成，以形成包括一对相对电极和其间的液晶层的像素。 像素中的液晶层被分成具有相互不同的液晶层厚度的多个区域，并且像素被构造成显示具有改善的线性度的施加的电压 - 透射率特性。 更具体地，例如，像素中的液晶层通过在基板上形成多个条形突起和局部不同的压痕宽度的凹陷来设置局部变化的厚度，使得突起在具有 比具有较大压痕宽度的区域更小的压痕宽度。
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3.发明授权
公开(公告)号：US5689320A
公开(公告)日：1997-11-18
申请号：US433066
申请日：1995-05-03
申请人： Shinjiro Okada , Shuzo Kaneko , Yutaka Inaba , Katsuhiko Shinjo , Hirokatsu Miyata , Kazunori Katakura
发明人： Shinjiro Okada , Shuzo Kaneko , Yutaka Inaba , Katsuhiko Shinjo , Hirokatsu Miyata , Kazunori Katakura
CPC分类号： G09G3/3637 , G09G2310/0227 , G09G2310/06 , G09G2310/061 , G09G2310/065 , G09G2320/0209 , G09G2320/0247 , G09G2320/041 , G09G3/2011 , G09G3/2014 , G09G3/207
摘要： A liquid crystal display device having a matrix of pixels in driven for gradational display with better temperature compensation and better flicker suppression by a driving method, wherein (a) a first voltage signal is applied to a pixel on a selected scanning line, the first voltage signal including a clear pulse, a writing pulse of a polarity opposite to that of the clear pulse and a correction pulse of a polarity opposite to that of the writing pulse, (b) a second voltage signal is applied to an associated pixel on a subsequent scanning line, the second voltage signal including a clear pulse, a writing pulse and a correction pulse of which polarities are respectively opposite to corresponding pulses of the first voltage signal, and (c) the correction pulse applied to the pixel on the selected scanning line is determined based on gradation data for the associated pixel on the subsequent scanning line, and the writing pulse applied to the pixel on the selected scanning line is determined based on gradation data for the pixel on the selected scanning line and the above-determined correction pulse.
摘要翻译： 一种液晶显示装置，具有驱动用于渐变显示的像素矩阵，具有更好的温度补偿和通过驱动方法的更好的闪烁抑制，其中（a）第一电压信号被施加到所选择的扫描线上的像素，第一电压 包括清除脉冲的信号，与清除脉冲的极性相反的写入脉冲和与写入脉冲的极性相反的极性的校正脉冲，（b）第二电压信号被施加到随后的相关像素 扫描线，所述第二电压信号包括清除脉冲，写入脉冲和其极性分别与所述第一电压信号的相应脉冲相反的校正脉冲，以及（c）施加到所述选择的扫描线上的像素的校正脉冲 基于后续扫描线上的相关像素的灰度数据确定，并且施加到所选择的扫描线上的像素的写入脉冲是确定的 基于所选择的扫描线上的像素的灰度数据和上述确定的校正脉冲。
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公开(公告)号：US5446570A
公开(公告)日：1995-08-29
申请号：US230775
申请日：1994-04-21
申请人： Shuzo Kaneko , Shinjiro Okada , Satoshi Yuasa , Katsuhiko Shinjo , Hirokatsu Miyata , Masaaki Shibata
发明人： Shuzo Kaneko , Shinjiro Okada , Satoshi Yuasa , Katsuhiko Shinjo , Hirokatsu Miyata , Masaaki Shibata
IPC分类号： G02F1/1343
CPC分类号： G02F1/134336 , G02F2203/30
摘要： The present invention provides a liquid crystal device having excellent gradation characteristics. A liquid crystal device of the invention has a liquid crystal held between a pair of electrodes. At least one of the electrodes is provided with a plurality of stripe electrodes with different spaces therebetween, and films provided between the respective stripe electrodes and having a sheet resistance of 10.sup.4 .OMEGA./.quadrature. to 10.sup.8 .OMEGA./.quadrature.. Alternatively, at least one of the electrodes has a plurality of projecting stripe portions formed thereon with different spaces within each of the pixels formed by intersections of both electrodes, the spaces between the projecting portions changes with a gradient within a pixel, and means for forming a distribution gradient of the strength of the electric field applied to the liquid crystal along the gradient of the space change. Thus, the controllability of the occurrence position of a reverse region and extension thereof is improved, and the applied voltage-transmittance characteristic with good linearity are obtained.
摘要翻译： 本发明提供一种具有优异的灰度特性的液晶装置。 本发明的液晶装置具有保持在一对电极之间的液晶。 电极中的至少一个设置有多个条形电极，其间具有不同的间隔，以及设置在各个条形电极之间的薄膜电阻为104欧姆/平方厘米。 或者，电极中的至少一个具有形成在其上的多个突出条纹部分，每个像素由两个电极的交点形成在每个像素内，突出部分之间的空间随着像素内的梯度而变化， 沿着空间变化的梯度施加到液晶的电场的强度的分布梯度。 因此，改善了反向区域的发生位置和其延伸的可控性，并且获得了具有良好线性度的所施加的电压 - 透射率特性。
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5.发明授权Chiral smetic LCD with small pretilt angle, substrate rubbed in two opposing directions, and no cholesteric phase or tilt angle > the pretilt plus inclination angles 失效手性硅胶LCD具有小的预倾角，基材在两个相反的方向上摩擦，没有胆固醇相或倾斜角>预倾斜加倾角
公开(公告)号：US5568295A
公开(公告)日：1996-10-22
申请号：US318432
申请日：1994-10-05
IPC分类号： G02F1/1337 , G02F1/141 , G02F1/13
CPC分类号： G02F1/141 , G02F1/133753 , G02F1/1416
摘要： A liquid crystal device is constituted by a pair of substrates, and a chiral smectic liquid crystal assuming at least two stable states disposed between the two substrates. At least one of the substrates is subjected to a uniaxial aligning treatment in two directions including a normal direction and a reverse direction substantially opposite to the normal direction. The liquid crystal is placed in an alignment state such that the liquid crystal provides an apparent tilt angle .theta.a which is a half of an angle between said two stable states, a tilt angle H and a pretilt angle .alpha. with respect to a substrate surface, and forms smectic layers forming an inclination angle .delta. from a normal to the substrate surfaces satisfying: H/2 .alpha.+.delta.. According to the liquid crystal device, an undesirable liquid crystal molecular movement along the substrates is effectively suppressed.
摘要翻译： 液晶装置由一对基板构成，并且假设在两个基板之间设置至少两个稳定状态的手性近晶液晶。 至少一个基板在与法线方向大致相反的法线方向和反方向两个方向上进行单轴取向处理。 液晶被置于对准状态，使得液晶提供明显的倾斜角θa，其是所述两个稳定状态之间的角度的一半，倾角+ E，crc H + EE和预倾角α与 并且形成近晶层，其形成从法线到基板表面的倾斜角度δ，满足：+ E，crc H + EE /2θθe + E，crc H + EE和+ E， crc H + EE> alpha + delta。 根据液晶装置，有效地抑制了沿衬底的不期望的液晶分子运动。
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公开(公告)号：US5644372A
公开(公告)日：1997-07-01
申请号：US446991
申请日：1995-05-22
IPC分类号： G02F1/1333 , G02F1/1343 , G02F1/141 , G02F1/13
CPC分类号： G02F1/133371 , G02F1/133345 , G02F1/141 , G02F1/13439
摘要： A liquid crystal display device is constituted by a pair of oppositely disposed substrates each having a plurality of opposing electrodes, and a ferroelectric liquid crystal disposed between the substrates so as to form a plurality of pixels each composed by a combination of a pair of the opposing electrodes and the ferroelectric liquid crystal disposed therebetween. Each pixel is provided with regions of different polarity inversion threshold voltages, and at least one of the pair of opposing electrodes is provided with a plurality of regions having unevennesses at different densities including a region with a higher density of unevennesses corresponding to a region of a lower polarity inversion threshold voltage and a region with a lower density of unevennesses corresponding to a region of a higher polarity inversion threshold voltage.
摘要翻译： 液晶显示装置由一对相对设置的基板构成，每个基板具有多个相对的电极，并且设置在基板之间的铁电液晶以形成多个像素，每个像素由一对相对的电极组合 电极和设置在其间的铁电液晶。 每个像素设置有不同极性的反转阈值电压的区域，并且该对相对电极中的至少一个设置有多个具有不同密度的不均匀区域，该区域具有对应于 低极性反转阈值电压和对应于较高极性反转阈值电压的区域的具有较低密度的不均匀区域。
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7.发明授权Liquid crystal display device with pixels having stripe-shaped projections with equal heights 失效具有像素的液晶显示装置具有相同高度的条状突起
公开(公告)号：US5604613A
公开(公告)日：1997-02-18
申请号：US452019
申请日：1995-05-26
IPC分类号： G02F1/1333 , G02F1/1343 , G02F1/141 , G02F1/13
CPC分类号： G02F1/133371 , G02F1/133345 , G02F1/141 , G02F1/13439
摘要： A liquid crystal display device is constituted by a pair of oppositely disposed substrates each having a plurality of opposing electrodes, and a ferroelectric liquid crystal disposed between the substrates so as to form a plurality of pixels each composed by a combination of a pair of the opposing electrodes and the ferroelectric liquid crystal disposed therebetween. Each pixel is provided with regions of different polarity inversion threshold voltages, and at least one of the pair of opposing electrodes is provided with a plurality of regions having unevennesses at different densities including a region with a higher density of unevennesses corresponding to a region of a lower polarity inversion threshold voltage and a region with a lower density of unevennesses corresponding to a region of a higher polarity inversion threshold voltage.
摘要翻译： 液晶显示装置由一对相对设置的基板构成，每个基板具有多个相对的电极，并且设置在基板之间的铁电液晶以形成多个像素，每个像素由一对相对的电极组合 电极和设置在其间的铁电液晶。 每个像素设置有不同极性的反转阈值电压的区域，并且该对相对电极中的至少一个设置有多个具有不同密度的不均匀区域，该区域具有对应于 低极性反转阈值电压和对应于较高极性反转阈值电压的区域的具有较低密度的不均匀区域。
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8.发明授权
公开(公告)号：US5552914A
公开(公告)日：1996-09-03
申请号：US452002
申请日：1995-05-26
IPC分类号： G02F1/1333 , G02F1/1343 , G02F1/141 , G02F1/13
CPC分类号： G02F1/133371 , G02F1/133345 , G02F1/141 , G02F1/13439
摘要： A liquid crystal display device is constituted by a pair of oppositely disposed substrates each having a plurality of opposing electrodes, and a ferroelectric liquid crystal disposed between the substrates so as to form a plurality of pixels each composed by a combination of a pair of the opposing electrodes and the ferroelectric liquid crystal disposed therebetween. Each pixel is provided with regions of different polarity inversion threshold voltages, and at least one of the pair of opposing electrodes is provided with a plurality of regions having unevennesses at different densities including a region with a higher density of unevennesses corresponding to a region of a lower polarity inversion threshold voltage and a region with a lower density of unevennesses corresponding to a region of a higher polarity inversion threshold voltage.
摘要翻译： 液晶显示装置由一对相对设置的基板构成，每个基板具有多个相对的电极，并且设置在基板之间的铁电液晶以形成多个像素，每个像素由一对相对的电极组合 电极和设置在其间的铁电液晶。 每个像素设置有不同极性反转阈值电压的区域，并且一对相对电极中的至少一个设置有多个具有不同密度的不均匀区域，该区域具有对应于 低极性反转阈值电压和对应于较高极性反转阈值电压的区域的具有较低密度的不均匀区域。
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9.发明授权Liquid crystal display device with stripe-shaped unevennesses on the electrodes 失效液晶显示装置在电极上具有条纹不均匀性
公开(公告)号：US5495352A
公开(公告)日：1996-02-27
申请号：US099054
申请日：1993-07-29
IPC分类号： G02F1/1333 , G02F1/1343 , G02F1/141
CPC分类号： G02F1/133371 , G02F1/133345 , G02F1/141 , G02F1/13439
摘要： A liquid crystal display device is constituted by a pair of oppositely disposed substrates each having a plurality of opposing electrodes, and a ferroelectric liquid crystal disposed between the substrates so as to form a plurality of pixels each composed by a combination of a pair of the opposing electrodes and the ferroelectric liquid crystal disposed therebetween. Each pixel is provided with regions of different polarity inversion threshold voltages, and at least one of the pair of opposing electrodes is provided with a plurality of regions having unevennesses at different densities including a region with a higher density of unevennesses corresponding to a region of a lower polarity inversion threshold voltage and a region with a lower density of unevennesses corresponding to a region of a higher polarity inversion threshold voltage.
摘要翻译： 液晶显示装置由一对相对设置的基板构成，每个基板具有多个相对的电极，并且设置在基板之间的铁电液晶以形成多个像素，每个像素由一对相对的电极组合 电极和设置在其间的铁电液晶。 每个像素设置有不同极性的反转阈值电压的区域，并且该对相对电极中的至少一个设置有多个具有不同密度的不均匀区域，该区域具有对应于 低极性反转阈值电压和对应于较高极性反转阈值电压的区域的具有较低密度的不均匀区域。
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公开(公告)号：US5638196A
公开(公告)日：1997-06-10
申请号：US422235
申请日：1995-04-14
申请人： Akihiro Mouri , Tsutomu Toyono , Shuzo Kaneko , Yutaka Inaba , Junichiro Kanbe
发明人： Akihiro Mouri , Tsutomu Toyono , Shuzo Kaneko , Yutaka Inaba , Junichiro Kanbe
CPC分类号： G09G3/3629 , H01L31/1884 , G09G2310/06 , G09G2310/061 , G09G2310/063 , G09G2320/0209 , Y02E10/50
摘要： An optical modulation device comprises scanning electrodes and signal electrodes disposed opposite to and intersecting with the signal electrodes, and an optical modulation material disposed between the electrodes, a pixel being formed at each intersection of the electrodes and showing a contrast depending on the polarity of a voltage applied thereto. The device is driven by a method comprising, in a writing period for writing in all or prescribed pixels among the pixels on a selected scanning electrode, a first phase for applying a voltage of one polarity having an amplitude exceeding a first threshold voltage of the optical modulation material to the all or prescribed pixels, and a second phase for applying a voltage of the other polarity having an amplitude exceeding a second threshold voltage of the optical modulation material to a selected pixel and applying a voltage not exceeding the threshold voltages of the optical modulation material to the other pixels, respectively among the all or prescribed pixels. The duration of a continually applied voltage of the same polarity applied to a pixel on a scanning electrode is 2.5 times the duration of the first phase in the writing period at the maximum.
摘要翻译： 光调制装置包括扫描电极和与信号电极相对并相交的信号电极，以及设置在电极之间的光调制材料，形成在电极的每个交叉点处的像素，并且根据 施加电压。 该装置由一种方法驱动，该方法包括在用于在所选择的扫描电极上的像素中的全部或规定像素中写入的写入周期中，施加具有超过光学器件的第一阈值电压的一个极性的电压的第一相位 调制材料到全部或规定像素，以及第二相，用于将具有超过光调制材料的第二阈值电压的振幅的另一极性的电压施加到所选择的像素，并施加不超过光学阈值电压的电压 分别在全部或规定的像素之间调制材料到其他像素。 施加到扫描电极上的像素的相同极性的持续施加电压的持续时间是写入周期中最大值的第一阶段的持续时间的2.5倍。
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