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1. 发明授权

US06175401B1 Liquid crystal display device having a liquid crystal layer which contains liquid crystal molecules in a plurality of alignment state and method for driving the same 失效
标题翻译：具有含有多个取向状态的液晶分子的液晶层的液晶显示装置及其驱动方法
公开(公告)号：US06175401B1
公开(公告)日：2001-01-16
申请号：US09067914
申请日：1998-05-01
申请人： Tomio Tanaka , Tetsushi Yoshida , Jun Ogura , Manabu Takei
发明人： Tomio Tanaka , Tetsushi Yoshida , Jun Ogura , Manabu Takei
IPC分类号： G02F1141
CPC分类号： G02F1/1416 , G02F2203/30
摘要： A liquid crystal material which exhibits an antiferroelectric phase while the liquid crystal material is in a bulk state, is sealed between substrates. The liquid crystal layer sealed between the substrates exhibits a mixed phase wherein the liquid crystal layer contains liquid crystal molecules aligned in a plurality of alignment states which differ from each other in the alignment order of the liquid crystal molecules forming adjoining smectic layers. The direction of the director of the liquid crystal layer varies continuously in accordance with the polarity and magnitude of a voltage applied to the liquid crystal layer. Gradation display can be achieved by arranging polarization plates such that the substrates are sandwiched therebetween.
摘要翻译：在液晶材料为块状时显示反铁电相的液晶材料被密封在基板之间。密封在基板之间的液晶层呈现混合相，其中液晶层包含以形成相邻的近晶层的液晶分子的取向顺序彼此不同的多个取向状态的液晶分子。液晶层的导向器的方向根据施加到液晶层的电压的极性和大小而连续变化。可以通过布置偏振板使得基板夹在其间来实现渐变显示。

2. 发明授权

US6091478A Liquid Crystal Display device using liquid crystal having ferrielectric phase between substrates and method for driving the same 失效
标题翻译：使用在基板之间具有介电相位的液晶的液晶显示装置及其驱动方法
公开(公告)号：US6091478A
公开(公告)日：2000-07-18
申请号：US73633
申请日：1998-05-06
申请人： Tomio Tanaka , Tetsushi Yoshida , Manabu Takei , Jun Ogura
发明人： Tomio Tanaka , Tetsushi Yoshida , Manabu Takei , Jun Ogura
IPC分类号： G02F1/136 , G02F1/133 , G02F1/1368 , G02F1/141 , G09F9/35 , G09G3/36 , C09K19/02
CPC分类号： G02F1/141 , G09G3/3651 , G02F2001/1412 , G09G3/3688
摘要： A liquid crystal layer is sealed between a pair of substrates on which opposite electrodes are formed. The liquid crystal layer is formed of a liquid crystal which exhibits an antiferroelectric phase while the liquid crystal is in a bulk state. When the liquid crystal is sealed between the substrates as the liquid crystal layer, the liquid crystal exhibits a ferrielectric phase wherein liquid crystal molecules aligned in a first state of being aligned in a first direction and liquid crystal molecules aligned in a second state of being aligned in a second direction are present in predetermined order. In accordance with the polarity and magnitude of a voltage applied between the opposite electrodes, the ratio of the number of liquid crystal molecules aligned in the first state to the number of liquid crystal molecules aligned in the second state varies such that the direction of the director of the liquid crystal layer varies continuously. Gradation display can be achieved by detecting a variation in the director through the use of a pair of polarization plates arranged in a crossed Nicols fashion.
摘要翻译：液晶层被密封在形成相对电极的一对基板之间。液晶层在液晶处于大量状态时由表现出反铁电相的液晶形成。当作为液晶层将液晶密封在基板之间时，液晶呈现电介质相，其中液晶分子在第一方向上排列成第一状态，液晶分子在第二状态下排列成对准在第二方向上以预定顺序存在。根据施加在相对电极之间的电压的极性和大小，在第一状态下排列的液晶分子的数量与在第二状态中排列的液晶分子的数量的比率变化，导体的方向的液晶层连续变化。可以通过使用以正交尼科尔方式布置的一对偏光板来检测导片的变化来实现渐变显示。

3. 发明授权

US6046788A Liquid crystal display device and method for driving the same 失效
标题翻译：液晶显示装置及其驱动方法
公开(公告)号：US6046788A
公开(公告)日：2000-04-04
申请号：US73636
申请日：1998-05-06
申请人： Tomio Tanaka , Tetsushi Yoshida , Manabu Takei , Jun Ogura
发明人： Tomio Tanaka , Tetsushi Yoshida , Manabu Takei , Jun Ogura
IPC分类号： G02F1/1337 , G02F1/133 , G02F1/141 , G09F9/35
CPC分类号： G02F1/141
摘要： A liquid crystal material is sealed between substrates. The liquid crystal material exhibits an antiferroelectric phase while the liquid crystal is in a bulk state. In the liquid crystal layer sealed between the substrates, due to aligning forces of alignment films, liquid crystal molecules are aligned in a state wherein there is no correlation in molecular order between adjoining smectic layers, and the director of the liquid crystal layer is substantially coincident with the direction of a normal line of the smectic layers. The director varies continuously in accordance with the polarity and magnitude of a voltage applied between electrodes formed on the substrates. Arranging polarization plates so that the substrates are sandwiched therebetween enables a gradation to be displayed.
摘要翻译：液晶材料被密封在基板之间。当液晶处于大量状态时，液晶材料呈现反铁电相。在密封在基板之间的液晶层中，由于取向膜的取向力，液晶分子在相邻的近晶层之间的分子顺序无相关性的状态下排列，液晶层的指向基本一致随着近晶层的正常线的方向。导向器根据在基板上形成的电极之间施加的电压的极性和大小而连续变化。排列偏光板使基板夹在两者之间能够显示灰度。

4. 发明授权

US06208403B1 Antiferroelectric liquid crystal display device 失效
标题翻译：反铁电液晶显示装置
公开(公告)号：US06208403B1
公开(公告)日：2001-03-27
申请号：US09556655
申请日：2000-04-24
申请人： Tomio Tanaka , Tetsushi Yoshida , Jun Ogura , Satoru Shimoda
发明人： Tomio Tanaka , Tetsushi Yoshida , Jun Ogura , Satoru Shimoda
IPC分类号： G02F11335
CPC分类号： G02F1/141 , G02F2001/1412
摘要： An antiferroelectric liquid crystal display device includes: an active matrix type LC cell and an antiferroelectric liquid crystal sealed in the cell. Liquid crystal molecules aligned to one of a first aligning direction and a second aligning direction are aligned in the other aligning direction in accordance with an applied voltage, thus forming a plurality of regions of different alignment states in a range shorter than a wavelength of light in a visible light band, and directions of said directors are changed in accordance with a ratio of regions in a first alignment state to regions in a second alignment state. The liquid crystal molecules may behave along a predetermined cone by a phase transition precursor in accordance with an applied voltage. The liquid crystal molecules may behave so as to be inclined in a direction perpendicular to an electric field, in accordance with an applied voltage.
摘要翻译：反铁电液晶显示装置包括：密封在电池中的有源矩阵型LC单元和反铁电液晶。与第一对准方向和第二对准方向中的一个对准的液晶分子根据施加的电压在另一个排列方向上排列，从而在比光的波长短的范围内形成多个不同取向状态的区域可见光带和所述导向器的方向根据第一取向状态的区域与第二取向状态的区域的比率而改变。根据施加的电压，液晶分子可以通过相变前体沿预定锥体表现。根据施加的电压，液晶分子可以表现为在垂直于电场的方向上倾斜。

5. 发明授权

US6151090A LCD using liquid crystal of ferroelectric and/or antiferroelectric phase having pretilt angle of 1 degree or less 失效
标题翻译： LCD使用具有1度或更小倾斜角的铁电和/或反铁电相的液晶
公开(公告)号：US6151090A
公开(公告)日：2000-11-21
申请号：US672380
申请日：1996-05-28
申请人： Tomio Tanaka , Jun Ogura , Tetsushi Yoshida
发明人： Tomio Tanaka , Jun Ogura , Tetsushi Yoshida
IPC分类号： G02F1/1337 , G02F1/141 , G02F1/13
CPC分类号： G02F1/1337 , G02F1/133784 , G02F1/141 , G02F2001/133749 , G02F2001/1412
摘要： A liquid crystal cell is formed by bonding a first substrate on which a first electrode and a first aligning film are formed, and a second substrate on which a second electrode and a second aligning film are formed by a seal member. A liquid crystal is filled in the liquid crystal cell. The thicknesses of the aligning films are set to 10 nm to 35 nm. An aligning treatment is performed twice on each of the aligning films in the opposite directions. The first aligning treatment is performed to give a pretilt angle of 5 degrees to the liquid crystal, and the second aligning treatment is performed to give a pretilt angle of 6 degrees to the liquid crystal, with the result that a pretilt angle of 1 degree is actually given to the liquid crystal. The glass-transition temperatures of the aligning films are selected to be about 250.degree. C., so that the aligning films are not transformed at the time of baking the seal member.
摘要翻译：通过接合形成有第一电极和第一取向膜的第一基板和通过密封构件形成有第二电极和第二取向膜的第二基板形成液晶单元。在液晶单元中填充有液晶。取向膜的厚度设定为10nm〜35nm。在每个取向膜上沿相反方向进行两次对准处理。进行第一对准处理以给出与液晶5度的预倾斜角度，并且进行第二对准处理以给出与液晶6度的预倾角，结果是预倾角为1度实际上给了液晶。选择取向膜的玻璃化转变温度为约250℃，使得在烘烤密封构件时不会使取向膜变形。

6. 发明授权

US5847799A Antiferroelectric liquid crystal display device 失效
公开(公告)号：US5847799A
公开(公告)日：1998-12-08
申请号：US657017
申请日：1996-05-28
申请人： Tomio Tanaka , Tetsushi Yoshida , Jun Ogura , Satoru Shimoda
发明人： Tomio Tanaka , Tetsushi Yoshida , Jun Ogura , Satoru Shimoda
IPC分类号： G02F1/141 , G02F1/1335 , G02F1/13
CPC分类号： G02F1/141 , G02F2001/1412
摘要： An antiferroelectric liquid crystal display device includes: an active matrix type LC cell and an antiferroelectric liquid crystal sealed in the cell. Liquid crystal molecules aligned to one of a first aligning direction and a second aligning direction are aligned in the other aligning direction in accordance with an applied voltage, thus forming a plurality of regions of different alignment states in a range shorter than a wavelength of light in a visible light band, and directions of said directors are changed in accordance with a ratio of regions in a first alignment state to regions in a second alignment state. The liquid crystal molecules may behave along a predetermined cone by a phase transition precursor in accordance with an applied voltage. The liquid crystal molecules may behave so as to be inclined in a direction perpendicular to an electric field, in accordance with an applied voltage.

7. 发明授权

US6163360A Liquid crystal display apparatus 失效
标题翻译：液晶显示装置
公开(公告)号：US6163360A
公开(公告)日：2000-12-19
申请号：US878812
申请日：1997-06-19
申请人： Tomio Tanaka , Jun Ogura , Satoru Shimoda , Tetsushi Yoshida
发明人： Tomio Tanaka , Jun Ogura , Satoru Shimoda , Tetsushi Yoshida
IPC分类号： G02F1/1335 , G02F1/141 , G09G3/20 , G09G3/36 , C09K19/02
CPC分类号： G02F1/141 , G02F2001/133531 , G02F2001/1412 , G02F2203/30 , G09G3/2011 , G09G3/3651 , G09G3/3688 , G09G2310/0251 , G09G2310/027 , G09G2310/061 , G09G2320/0204 , G09G2320/041
摘要： Placed between a pair of substrates is a liquid crystal which has a first ferroelectric phase where liquid crystal molecules are aligned substantially in a first direction in accordance with an applied voltage, a second ferroelectric phase where the liquid crystal molecules are aligned substantially in a second direction in accordance with an applied voltage, and an intermediate alignment state where the director of the liquid crystal is directed between the first and second directions. The liquid crystal in use is selected so that the first and second directions intersect each other at an angle of greater than 45.degree.. The transmission axis of one of a pair of polarization plates is set inclined to an intermediate direction between the first and second directions by 22.5.degree., and the optical axis of the other polarization plate is set perpendicular to the transmission axis of the former polarization plate. A voltage of a range which does not set the liquid crystal in a ferroelectric phase and can provide maximum and minimum transmittances is applied between electrodes which are so arranged as to sandwich a layer of the liquid crystal.
摘要翻译：放置在一对基板之间的液晶是具有第一铁电相的液晶，其中液晶分子基本上按照施加的电压在第一方向上取向，液晶分子基本上沿第二方向排列的第二铁电相根据施加电压，以及液晶指向器在第一和第二方向之间的中间对准状态。选择使用的液晶，使得第一和第二方向以大于45°的角度相交。一对偏振板中的一个的透射轴被设定为在第一和第二方向之间的中间方向倾斜22.5°，另一个偏振板的光轴垂直于前一个偏振板的透射轴设置。在电极之间施加不设置铁电相中的液晶并且可以提供最大和最小透射率的范围的电压，其被布置为夹着液晶层。

8. 发明授权

US6122034A Antiferroelectric liquid crystal display device 有权
标题翻译：反铁电液晶显示装置
公开(公告)号：US6122034A
公开(公告)日：2000-09-19
申请号：US141495
申请日：1998-08-27
申请人： Tomio Tanaka , Tetsushi Yoshida , Jun Ogura , Satoru Shimoda
发明人： Tomio Tanaka , Tetsushi Yoshida , Jun Ogura , Satoru Shimoda
IPC分类号： G02F1/141 , G02F1/13 , G02F1/1335
CPC分类号： G02F1/141 , G02F2001/1412
摘要： An antiferroelectric liquid crystal display device includes: an active matrix type LC cell and an antiferroelectric liquid crystal sealed in the cell. Liquid crystal molecules aligned to one of a first aligning direction and a second aligning direction are aligned in the other aligning direction in accordance with an applied voltage, thus forming a plurality of regions of different alignment states in a range shorter than a wavelength of light in a visible light band, and directions of said directors are changed in accordance with a ratio of regions in a first alignment state to regions in a second alignment state. The liquid crystal molecules may behave along a predetermined cone by a phase transition precursor in accordance with an applied voltage. The liquid crystal molecules may behave so as to be inclined in a direction perpendicular to an electric field, in accordance with an applied voltage.
摘要翻译：反铁电液晶显示装置包括：密封在电池中的有源矩阵型LC单元和反铁电液晶。与第一对准方向和第二对准方向中的一个对准的液晶分子根据施加的电压在另一个排列方向上排列，从而在比光的波长短的范围内形成多个不同取向状态的区域可见光带和所述导向器的方向根据第一取向状态的区域与第二取向状态的区域的比率而改变。根据施加的电压，液晶分子可以通过相变前体沿预定锥体表现。根据施加的电压，液晶分子可以表现为在垂直于电场的方向上倾斜。

9. 发明授权

US5963187A Liquid crystal display apparatus using liquid crystal having ferroelectric phase and method of driving liquid crystal display device using liquid crystal having ferroelectric phase 失效
标题翻译：使用具有铁电相的液晶的液晶显示装置以及使用具有铁电相的液晶驱动液晶显示装置的方法
公开(公告)号：US5963187A
公开(公告)日：1999-10-05
申请号：US622091
申请日：1996-03-26
申请人： Tomio Tanaka , Tetsushi Yoshida , Katsuhito Sakamoto , Jun Ogura
发明人： Tomio Tanaka , Tetsushi Yoshida , Katsuhito Sakamoto , Jun Ogura
IPC分类号： G02F1/141 , G09G3/20 , G09G3/36
CPC分类号： G02F1/141 , G09G3/3648 , G02F2001/1412 , G09G3/2011 , G09G3/3614
摘要： In a TFT liquid crystal display device using a DHF liquid crystal, the DHF liquid crystal is alienable to a first alignment state in which liquid crystal molecules are substantially aligned to a first direction, to a second alignment state in which the liquid crystal molecules are substantially aligned to a second direction and to an arbitrary intermediate alignment state between the first and second alignment states, in accordance with a voltage applied between the pixel electrodes and the opposing electrode. One of a pair of polarization plates has an optical axis set in substantially an intermediate direction between the first and second directions. The optical axis of the other polarization plate is set perpendicular to the optical axis of the former polarization plate. A pulse having a voltage whose absolute value corresponds to a display gradation and whose polarity changes frame by frame is applied to the DHF liquid crystal for each pixel in the selection period of that pixel. A single pulse is applied for a single image signal.
摘要翻译：在使用DHF液晶的TFT液晶显示装置中，DHF液晶与液晶分子基本上与第一方向对准的第一取向状态与液晶分子基本上对准的第二取向状态不可分离根据施加在像素电极和对置电极之间的电压，在第一方向和第二取向状态之间的任意的中间取向状态下对准第二方向。一对偏振板中的一个具有在第一和第二方向之间的大致中间方向上设置的光轴。另一个偏振板的光轴垂直于前一个偏振板的光轴设置。其绝对值对应于显示灰度并且其极性逐帧改变的电压被施加到该像素的选择周期中的每个像素的DHF液晶。对单个图像信号应用单个脉冲。

10. 发明授权

US6069602A Liquid crystal display device, liquid crystal display apparatus and liquid crystal driving method 失效
标题翻译：液晶显示装置，液晶显示装置和液晶驱动方法
公开(公告)号：US6069602A
公开(公告)日：2000-05-30
申请号：US703369
申请日：1996-08-26
申请人： Tomio Tanaka , Tetsushi Yoshida , Katsuhiko Morosawa
发明人： Tomio Tanaka , Tetsushi Yoshida , Katsuhiko Morosawa
IPC分类号： G09G3/20 , G09G3/36
CPC分类号： G09G3/3648 , G09G2310/0227 , G09G2320/0247 , G09G3/2011
摘要： A liquid crystal display device includes a first substrate having pixel electrodes and active elements formed thereon in a matrix form, a second substrate having common electrodes formed thereon which face the pixel electrodes, and a liquid crystal located between the first and second substrates and having a spontaneous polarization. The ON current of the active elements satisfies the following equation (11):4.times.Ps.times.S/TS (11)where S is the area of each pixel, Ps is a spontaneous polarization per unit area, TS is the selection time of each pixel and Ion is the ON current.
摘要翻译：液晶显示装置包括具有像素电极的第一基板和以矩阵形式形成的有源元件，其上形成有与像素电极相对的公共电极的第二基板以及位于第一和第二基板之间的液晶，自发极化有源元件的导通电流满足下列等式（11）：4xPsxS / TS（11）其中S是每个像素的面积，Ps是每单位面积的自发极化，TS是每个像素的选择时间，而Ion ON电流。

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