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1. 发明公开

EP0475401A3 Optical modulation element 失效
标题翻译：光学调制元件
公开(公告)号：EP0475401A3
公开(公告)日：1992-09-16
申请号：EP91115462.3
申请日：1991-09-12
申请人： CANON KABUSHIKI KAISHA
发明人： Kaneko, Shuzo, c/o Canon Kabushiki Kaisha , Mitsutake, Hideaki, c/o Canon Kabushiki Kaisha , Shingaki, Junko, c/o Canon Kabushiki Kaisha
IPC分类号： G02F1/1347 , G02F1/137
CPC分类号： G02F1/133382 , G02F1/133528 , G02F1/13471 , G02F1/141 , G02F2001/133531
摘要： An optical modulation element includes a polarizer (11), a modulator (12-13), and an analyzer (14), wherein each of the polarizer, the modulator, and the analyzer has a chiral smectic liquid crystal which has substantially the same temperature dependency of a tilt angle,
the polarizer (11) and the analyzer (14) are arranged so that molecular axes of the chiral smectic liquid crystal of the polarizer and the analyzer cross each other, and
the chiral smectic liquid crystal of the modulator exhibits at least two stable arrangement states, and the modulator is arranged so that a molecular axis of one of the two stable arrangement states is substantially parallel to the molecular axis of one of the polarizer and the analyzer.

2. 发明公开

EP0448032A3 Method of driving ferroelectric liquid crystal element and ferroelectric liquid crystal display 失效
标题翻译：驱动电磁液晶元件的方法
公开(公告)号：EP0448032A3
公开(公告)日：1992-11-19
申请号：EP91104222.4
申请日：1991-03-19
申请人： CANON KABUSHIKI KAISHA
发明人： Inaba, Yutaka, c/o Canon Kabushiki Kaisha , Kurematsu, Katsumi, c/o Canon Kabushiki Kaisha , Kaneko, Shuzo, c/o Canon Kabushiki Kaisha
IPC分类号： G09G3/36
CPC分类号： G09G3/3651 , G09G3/2011 , G09G3/207 , G09G3/3614 , G09G3/367 , G09G2310/0251 , G09G2310/061
摘要： A method of driving a liquid crystal display element in which a switching element is provided for each of pixel electrodes arranged in a matrix manner and a ferroelectric liquid crystal is sandwiched between the pixel electrodes and a counter electrode includes the steps of applying a reset voltage for resetting the entire pixel to a first stable state of the ferroelectric liquid crystal across the pixel electrode and the counter electrode, partially transiting the pixel to a second stable state by a tone signal voltage having a pole opposite to that of the reset voltage, and reversing the pole of the reset voltage every predetermined period. Assuming that a state reverse ratio of the ferroelectric liquid crystal is T(V)% when the tone signal voltage is V, a tone signal voltage V₁ after negative resetting and a corresponding tone signal voltage -V₂ after positive resetting satisfy the following relation: T(V₁) + T(V₂) = 100

3. 发明授权

EP0448032B1 Method of driving ferroelectric liquid crystal element and ferroelectric liquid crystal display 失效
标题翻译：驱动铁电液晶元件和铁电液晶显示器的方法
公开(公告)号：EP0448032B1
公开(公告)日：1996-07-03
申请号：EP91104222.4
申请日：1991-03-19
申请人： CANON KABUSHIKI KAISHA
发明人： Inaba, Yutaka, c/o Canon Kabushiki Kaisha , Kurematsu, Katsumi, c/o Canon Kabushiki Kaisha , Kaneko, Shuzo, c/o Canon Kabushiki Kaisha
IPC分类号： G09G3/36
CPC分类号： G09G3/3651 , G09G3/2011 , G09G3/207 , G09G3/3614 , G09G3/367 , G09G2310/0251 , G09G2310/061

4. 发明公开

EP0627648A1 Liquid crystal device 失效
标题翻译：液晶装置
公开(公告)号：EP0627648A1
公开(公告)日：1994-12-07
申请号：EP94304021.2
申请日：1994-06-03
申请人： CANON KABUSHIKI KAISHA
发明人： Shinjo, Katsuhiko, c/o Canon Kabushiki Kaisha , Kaneko, Shuzo, c/o Canon Kabushiki Kaisha , Okada, Shinjiro, c/o Canon Kabushiki Kaisha , Miyata, Hirokatsu, c/o Canon Kabushiki Kaisha
IPC分类号： G02F1/1333
CPC分类号： G02F1/133371 , G02F1/141 , G02F2203/30
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 suited for gradational display. 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彼此相对的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互不相同的液晶层厚度的多个区域，并且该像素被构造为显示适用于渐变显示的具有改善的线性的施加电压 - 透射率特性。更具体地说，例如，通过在局部不同的压痕宽度上在基片上形成多个条形凸起和凹痕，使像素中的液晶层具有局部变化的厚度，使得凸起在具有压痕宽度小于压痕宽度大的区域。

5. 发明公开

EP0584963A3 Liquid crystal display device 失效
标题翻译： Flüssigkristall-Anzeigevorrichtung。
公开(公告)号：EP0584963A3
公开(公告)日：1994-11-09
申请号：EP93306005.5
申请日：1993-07-29
申请人： CANON KABUSHIKI KAISHA
发明人： Shinjo, Katsuhiko, c/o Canon Kabushiki Kaisha , Kaneko, Tetsuya, c/o Canon Kabushiki Kaisha , Kaneko, Shuzo, c/o Canon Kabushiki Kaisha , Tsukamoto, Takeo, c/o Canon Kabushiki Kaisha
IPC分类号： G02F1/1333 , G02F1/137
CPC分类号： G02F1/133371 , G02F1/133345 , G02F1/13439 , G02F1/141 , G02F2203/30
摘要： A FLC device is constituted by a pair of oppositely disposed substrates each having a plurality of opposing electrodes, a FLC layer disposed between the substrates, a plurality of pixels being formed by a pair of opposing electrodes and the FLC 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. Further each pixel is provided with means for causing a lowering in the polarity inversion threshold voltage of the FLC in the form of a line (e.g. stripe-shaped uneveness) so to promote a one-dimensional, generally linear, domain growth. Still further at least one opposing electrode is coated with a fine particle dispersion layer containing electroconductive particles and further an alignment control layer so disposed (e.g. by an average thickness smaller than the average particle size of the fine particles) to allow an electrical contact between the fine dispersion particles and the FLC layer.
摘要翻译： FLC器件由一对相对设置的衬底构成，每个衬底具有多个相对电极，设置在衬底之间的FLC层，由一对相对电极形成的多个像素以及它们之间的FLC。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具有不同密度的不均匀性的多个区域，包括具有较高密度的不均匀区域，该区域对应于低极性反转阈值电压和具有较低密度的不均匀度的区域对应于较高极性反转阈值电压的区域。此外，每个像素设置有用于使线性（例如条纹不均匀）形式的FLC的极性反转阈值电压降低的装置，以促进一维，大致线性的畴生长。另外还有至少一个相对的电极涂覆有包含导电颗粒的微粒分散层，并且进一步设置一个取向控制层（例如平均厚度小于细颗粒的平均粒径），以允许细分散颗粒和FLC层。

6. 发明公开

EP0525675A3 Liquid crystal display apparatus 失效
标题翻译：液晶显示装置
公开(公告)号：EP0525675A3
公开(公告)日：1993-08-11
申请号：EP92112703.1
申请日：1992-07-24
申请人： CANON KABUSHIKI KAISHA
发明人： Kurematsu, Katsumi, c/o Canon Kabushiki Kaisha , Kaneko, Shuzo, c/o Canon Kabushiki Kaisha
IPC分类号： G02F1/137 , G02F1/136 , G09G3/36
CPC分类号： G09G3/3651 , G02F1/136213 , G02F1/141 , G02F2203/30 , G09G3/207 , G09G2320/0219
摘要： A liquid crystal display apparatus has a matrix of ferroelectric liquid crystal pixels which perform gradation display under active matrix driving. Each pixel is provided with a sub-capacitance for eliminating the influence of noise introduced through parasitic capacitance of a driving thin film transistor. The ferroelectric liquid crystal has a spontaneous polarization value P s [C/cm 2 ] expressed by the following formula:
,where C LC represents the capacitance [F] of the pixel serving as a capacitor, C s represents the capacitance [F] of the sub-capacitance, A represents the area [cm 2 ] of the pixel, and V th represents the inversion threshold voltage of the liquid crystal.

7. 发明授权

EP0627648B1 Liquid crystal device 失效
公开(公告)号：EP0627648B1
公开(公告)日：1999-09-08
申请号：EP94304021.2
申请日：1994-06-03
申请人： CANON KABUSHIKI KAISHA
发明人： Shinjo, Katsuhiko, c/o Canon Kabushiki Kaisha , Kaneko, Shuzo, c/o Canon Kabushiki Kaisha , Okada, Shinjiro, c/o Canon Kabushiki Kaisha , Miyata, Hirokatsu, c/o Canon Kabushiki Kaisha
IPC分类号： G02F1/1333
CPC分类号： G02F1/133371 , G02F1/141 , G02F2203/30
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 suited for gradational display. 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.

8. 发明授权

EP0475401B1 Optical modulation element 失效
标题翻译：一种光调制元件
公开(公告)号：EP0475401B1
公开(公告)日：1997-05-28
申请号：EP91115462.3
申请日：1991-09-12
申请人： CANON KABUSHIKI KAISHA
发明人： Kaneko, Shuzo, c/o Canon Kabushiki Kaisha , Mitsutake, Hideaki, c/o Canon Kabushiki Kaisha , Shingaki, Junko, c/o Canon Kabushiki Kaisha
IPC分类号： G02F1/1347 , G02F1/137
CPC分类号： G02F1/133382 , G02F1/133528 , G02F1/13471 , G02F1/141 , G02F2001/133531

9. 发明授权

EP0508227B1 Optical modulation element 失效
标题翻译：一种光调制元件
公开(公告)号：EP0508227B1
公开(公告)日：1996-09-04
申请号：EP92105195.9
申请日：1992-03-26
申请人： CANON KABUSHIKI KAISHA
发明人： Fujiwara, Ryoji, c/o Canon Kabushiki Kaisha , Kaneko, Shuzo, c/o Canon Kabushiki Kaisha , Maruyama, Akio, c/o Canon Kabushiki Kaisha , Maruyama, Tomoko, c/o Canon Kabushiki Kaisha , Murakami, Tomoko, c/o Canon Kabushiki Kaisha
IPC分类号： G02F1/1337 , G02F1/137
CPC分类号： H01B1/20 , C09K19/58 , G02F1/133711 , G02F1/133784 , G02F1/141 , G02F2001/133796 , G02F2203/30

10. 发明公开

EP0508227A2 Optical modulation element 失效
标题翻译：光调制元件
公开(公告)号：EP0508227A2
公开(公告)日：1992-10-14
申请号：EP92105195.9
申请日：1992-03-26
申请人： CANON KABUSHIKI KAISHA
发明人： Fujiwara, Ryoji, c/o Canon Kabushiki Kaisha , Kaneko, Shuzo, c/o Canon Kabushiki Kaisha , Maruyama, Akio, c/o Canon Kabushiki Kaisha , Maruyama, Tomoko, c/o Canon Kabushiki Kaisha , Murakami, Tomoko, c/o Canon Kabushiki Kaisha
IPC分类号： G02F1/1337 , G02F1/137
CPC分类号： H01B1/20 , C09K19/58 , G02F1/133711 , G02F1/133784 , G02F1/141 , G02F2001/133796 , G02F2203/30
摘要： An optical modulation element, in which a pixel pinching a ferroelectric layer (104) and an orientation layer (103,103') with the liquid crystal layer being oriented thereon is formed between a pair of electrodes (102,102'), and an external voltage is applied across the electrodes in response to gradation signals to perform gradation drivings, is characterized in that the material of the orientation layer (103,103') is a high-molecular polymer with a ultrafine granular conductive substance being dispersed therein.
摘要翻译：在一对电极（102,102'）之间形成光学调制元件，在该光学调制元件中，在一对电极（102,102'）之间形成夹持铁电层（104）和取向层（103,103'）的像素，其中液晶层取向在其上，并施加外部电压其特征在于取向层（103,103'）的材料是其中分散有超细颗粒导电物质的高分子聚合物。

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