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1. 发明公开

EP0844510A1 Ferroelectric liquid crystal device and treatment method therefor 失效
标题翻译： FerroelektrischeFlüssigkristallvorrichtungund Verfahren zur Behandlung derselben
公开(公告)号：EP0844510A1
公开(公告)日：1998-05-27
申请号：EP98100899.8
申请日：1993-01-22
申请人： CANON KABUSHIKI KAISHA
发明人： Hanyu, Yukio , Tsuboyama, Akira , Taniguchi, Osamu , Mihara, Tadashi , Nakamura, Katsutoshi , Mori, Sunao
IPC分类号： G02F1/141
CPC分类号： G02F1/1416 , G02F2001/133746
摘要： A ferroelectric liquid crystal device is constituted by disposing a ferroelectric liquid crystal between a pair of substrates having thereon electrodes for voltage application and provided with uniaxial alignment axes, as by rubbing, so as to provide a high pretilt angle of at least 10 degrees. A problematic liquid crystal movement in such a high-pretilt angle ferroelectric liquid crystal device is suppressed by improving a smectic layer structure therein, inclusive of a symmetry of pretilt angles at the pair of substrate boundary surfaces. Such an improved smectic layer structure is accomplished by a realigning treatment after cooling to the chiral smectic phase or in the final stage of the cooling to the chiral smectic phase as by application of an AC electric field and/or by repetitive heating-cooling in the chiral smectic phase. The improved smectic layer structure is represented by, e.g., an X-ray diffraction peak having an increased peak area and/or a decreased half-value width.
摘要翻译：铁电液晶装置是通过将铁电液晶设置在具有电压施加用电极的一对基板之间，通过摩擦而设置有单轴取向轴，以提供至少10度的高预倾斜度。通过改善其中的近晶层结构，包括一对基板边界面处的预倾斜角的对称性，可以抑制这种高预倾角铁电液晶装置中的有问题的液晶运动。这种改进的近晶层结构通过在冷却到手性近晶相之后或在冷却到手性近晶相的最后阶段中的重新对准处理来实现，这是通过施加AC电场和/或通过反复加热冷却手性近晶相。改进的近晶层结构由例如具有增加的峰面积和/或半值宽度减小的X射线衍射峰表示。

2. 发明公开

EP0622657A1 Liquid crystal device 失效
标题翻译： Flüssigkristall-Vorrichtung。
公开(公告)号：EP0622657A1
公开(公告)日：1994-11-02
申请号：EP94302905.8
申请日：1994-04-22
申请人： CANON KABUSHIKI KAISHA
发明人： Kodera, Yasuto , Hotta, Yoshio , Hanyu, Yukio , Mihara, Tadashi , Mori, Sunao
IPC分类号： G02F1/1337 , G02F1/137
CPC分类号： G02F1/133753 , G02F1/141 , G02F2001/133388 , G02F2001/133761
摘要： A liquid crystal device is constituted by a pair of oppositely disposed substrates having opposing inner surfaces and opposing electrodes thereon, and a chiral smectic liquid crystal disposed between the opposing electrodes. The liquid crystal device has an effective optical modulation region (2) and a peripheral region (3) outside the effective optical modulation region. In the device, liquid crystal molecules in the peripheral region have a pretilt angle (α₂) which is larger than a pretilt angle (α₁) of liquid crystal molecules in the effective optical modulation region. As a result, a local pressure irregularity or a cell thickness change caused by a liquid crystal molecular movement along an extension of the device is effectively suppressed.
摘要翻译：液晶装置由一对相对设置的基板，其上具有相对的内表面和相对的电极，以及设置在相对电极之间的手性近晶液晶。液晶装置在有效光调制区域外具有有效的光调制区域（2）和周边区域（3）。在该装置中，周边区域中的液晶分子具有比有效光调制区域中的液晶分子的预倾角（α1）大的预倾角（α2）。结果，有效地抑制了沿着装置的延伸部由液晶分子运动引起的局部压力不均匀性或细胞厚度变化。

3. 发明授权

EP0622657B1 Liquid crystal device 失效
标题翻译：液晶装置
公开(公告)号：EP0622657B1
公开(公告)日：1999-08-25
申请号：EP94302905.8
申请日：1994-04-22
申请人： CANON KABUSHIKI KAISHA
发明人： Kodera, Yasuto , Hotta, Yoshio , Hanyu, Yukio , Mihara, Tadashi , Mori, Sunao
IPC分类号： G02F1/1337 , G02F1/137
CPC分类号： G02F1/133753 , G02F1/141 , G02F2001/133388 , G02F2001/133761

4. 发明公开

EP0795774A3 Liquid crystal device and process for production thereof 失效
标题翻译：液晶装置及其制造方法
公开(公告)号：EP0795774A3
公开(公告)日：1998-03-25
申请号：EP97301542.3
申请日：1997-03-07
申请人： CANON KABUSHIKI KAISHA
发明人： Kawasaki, Junji , Mori, Sunao , Enomoto, Takashi , Yoshioka, Toshifumi , Watanabe, Yasuyuki , Aoyama, Kazuhiro , Nukanobu, Kouki
IPC分类号： G02F1/1333 , G02F1/1337 , G02F1/1335 , G02F1/1339 , G02F1/141
CPC分类号： G02F1/13394 , G02F1/133514 , G02F1/133753 , G02F1/141
摘要： A matrix-type liquid crystal device is formed so as to have a matrix of pixels defined by and isolated from each other by an outside-pixel region. The liquid crystal in the outside-pixel region in placed in an alignment state, typically a homeotropic state or one close thereto, which is different from an alignment state, typically a homogeneous uniform alignment state, at the pixel region. As a result, the liquid crystal device is provided with improved display qualities due to suppression of irregularities at the outside-pixel region and/or a local pressure distribution.

5. 发明公开

EP0795774A2 Liquid crystal device and process for production thereof 失效
标题翻译： Flüssigkristallvorrichtungund deren Herstellungsverfahren
公开(公告)号：EP0795774A2
公开(公告)日：1997-09-17
申请号：EP97301542.3
申请日：1997-03-07
申请人： CANON KABUSHIKI KAISHA
发明人： Kawasaki, Junji , Mori, Sunao , Enomoto, Takashi , Yoshioka, Toshifumi , Watanabe, Yasuyuki , Aoyama, Kazuhiro , Nukanobu, Kouki
IPC分类号： G02F1/1333 , G02F1/1337 , G02F1/1335 , G02F1/1339 , G02F1/141
CPC分类号： G02F1/13394 , G02F1/133514 , G02F1/133753 , G02F1/141
摘要： A matrix-type liquid crystal device is formed so as to have a matrix of pixels defined by and isolated from each other by an outside-pixel region. The liquid crystal in the outside-pixel region in placed in an alignment state, typically a homeotropic state or one close thereto, which is different from an alignment state, typically a homogeneous uniform alignment state, at the pixel region. As a result, the liquid crystal device is provided with improved display qualities due to suppression of irregularities at the outside-pixel region and/or a local pressure distribution.
摘要翻译：矩阵型液晶装置被形成为具有由外部像素区域彼此限定和隔离的像素矩阵。外部像素区域中的液晶处于取向状态，通常是垂直状态或靠近其中的一个，与像素区域的取向状态（通常为均匀的均匀取向状态）不同。结果，由于抑制了外部像素区域的不规则和/或局部压力分布，液晶显示装置具有改进的显示质量。

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