公开(公告)号：US5900852A

公开(公告)日：1999-05-04

申请号：US665168

申请日：1996-06-14

申请人： Takaaki Tanaka ,  Yuzuru Sato ,  Hiroaki Nomura

发明人： Takaaki Tanaka ,  Yuzuru Sato ,  Hiroaki Nomura

IPC分类号： G02F1/133 ,  G02F1/1337 ,  G02F1/139 ,  G09G3/36

CPC分类号： G02F1/1391 ,  G09G3/3629 ,  G09G2300/0486 ,  G09G2310/06 ,  G09G2310/061

摘要： A high speed multiplex-driven liquid crystal display device is capable of utilizing a bistable nematic liquid crystal medium while maintaining high contrast, fast switching capability and a wide viewing angle. The chiral nematic liquid crystal medium has a twisted structure wherein a first voltage waveform applied in a first time period brings on Frederick's transition followed by a selected second voltage waveform applied in a second time period capable of generating one of two selectable metastable states representing switchable bistable states.

摘要翻译： 高速多媒体驱动液晶显示装置能够利用双稳态向列型液晶介质，同时保持高对比度，快速切换能力和宽视角。 手征向列型液晶介质具有扭曲结构，其中在第一时间段内施加的第一电压波形带来了Frederick的转变，随后是在第二时间段中施加的选择的第二电压波形，该第二时间段能够产生两个可选择的亚稳态之一，其表示可切换双稳态 状态。

公开(公告)号：US5835075A

公开(公告)日：1998-11-10

申请号：US837506

申请日：1997-04-18

申请人： Hiroaki Nomura ,  Yuzuru Sato ,  Akira Inoue ,  Takaaki Tanaka ,  Kenichi Momose

发明人： Hiroaki Nomura ,  Yuzuru Sato ,  Akira Inoue ,  Takaaki Tanaka ,  Kenichi Momose

IPC分类号： G02F1/133 ,  G09G3/36

CPC分类号： G09G3/3629 ,  G09G3/3681 ,  G09G3/3692 ,  G09G2300/0486 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2310/065 ,  G09G2320/0247 ,  G09G2320/041 ,  G09G2320/10

摘要： A method of driving a liquid crystal that has a memory capability, wherein a reset voltage is initially applied to the liquid crystal during a reset period, to bring about a Freedericksz transition in the liquid crystal. During a subsequent selection period, a selection voltage that is selected on the basis of a critical value that brings about one of two metastable states in the liquid crystal is applied to the liquid crystal, and, during a non-selection period that follows the selection period, a non-selection voltage that is less than or equal to a threshold value that maintains two metastable states is applied to the liquid crystal. A delay period is provided between the reset period and the selection period, in order to gain effective timing for applying the selection voltage to the liquid crystal after the application of the reset voltage has been turned off. This shortens the length of the selection period, and hence the write time.

摘要翻译： 一种驱动具有记忆能力的液晶的方法，其中在复位期间初始向液晶施加复位电压，从而在液晶中产生Fre + E，acu e + EE dericksz跃迁。 在随后的选择期间，基于在液晶中产生两个亚稳态之一的临界值选择的选择电压被施加到液晶，并且在选择之后的非选择期间 在液晶中施加小于或等于维持两个亚稳态的阈值的非选择电压。 在复位期间和选择期间之间设置延迟期间，以便在施加复位电压已经被关闭之后获得用于将选择电压施加到液晶的有效定时。 这缩短了选择周期的长度，从而缩短了写入时间。

公开(公告)号：US5594464A

公开(公告)日：1997-01-14

申请号：US59226

申请日：1993-05-07

申请人： Takaaki Tanaka ,  Yuzuru Sato ,  Hiroaki Nomura

发明人： Takaaki Tanaka ,  Yuzuru Sato ,  Hiroaki Nomura

IPC分类号： G02F1/133 ,  G02F1/1337 ,  G02F1/139 ,  G09G3/36

CPC分类号： G02F1/1391 ,  G09G3/3629 ,  G09G2300/0486 ,  G09G2310/06 ,  G09G2310/061

摘要： A high speed multiplex-driven liquid crystal display device is capable of utilizing a bistable nematic liquid crystal medium while maintaining high contrast, fast switching capability and a wide viewing angle. The chiral nematic liquid crystal medium has a twisted structure wherein a first voltage waveform applied in a first time period brings on Frederick's transition followed by a selected second voltage waveform applied in a second time period capable of generating one of two selectable metastable states representing switchable bistable states.

摘要翻译： 高速多媒体驱动液晶显示装置能够利用双稳态向列型液晶介质，同时保持高对比度，快速切换能力和宽视角。 手征向列型液晶介质具有扭曲结构，其中在第一时间段内施加的第一电压波形带来了Frederick的转变，随后是在第二时间段中施加的选择的第二电压波形，该第二时间段能够产生两个可选择的亚稳态之一，其表示可切换双稳态 状态。

公开(公告)号：US06236385B1

公开(公告)日：2001-05-22

申请号：US09183602

申请日：1998-10-29

申请人： Hiroaki Nomura ,  Yuzuru Sato ,  Akira Inoue ,  Takaaki Tanaka ,  Kenichi Momose

发明人： Hiroaki Nomura ,  Yuzuru Sato ,  Akira Inoue ,  Takaaki Tanaka ,  Kenichi Momose

IPC分类号： G09G336

CPC分类号： G09G3/3629 ,  G09G3/3681 ,  G09G3/3692 ,  G09G2300/0486 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2310/065 ,  G09G2320/0247 ,  G09G2320/041 ,  G09G2320/10

摘要： A method of driving a liquid crystal that has a memory capability, wherein a reset voltage is initially applied to the liquid crystal during a reset period, to bring about a Freédericksz transition in the liquid crystal. During a subsequent selection period, a selection voltage that is selected on the basis of a critical value that brings about one of two metastable states in the liquid crystal is applied to the liquid crystal, and, during a non-selection period that follows the selection period, a non-selection voltage that is less than or equal to a threshold value that maintains two metastable states is applied to the liquid crystal. A delay period is provided between the reset period and the selection period, in order to gain effective timing for applying the selection voltage to the liquid crystal after the application of the reset voltage has been turned off. This shortens the length of the selection period, and hence the write time.

摘要翻译： 一种驱动具有记忆能力的液晶的方法，其中在复位期间初始向液晶施加复位电压，以产生液晶中的Freédericksz跃迁。 在随后的选择期间，基于在液晶中产生两个亚稳态之一的临界值选择的选择电压被施加到液晶，并且在选择之后的非选择期间 在液晶中施加小于或等于维持两个亚稳态的阈值的非选择电压。 在复位期间和选择期间之间设置延迟期间，以便在施加复位电压已经被关闭之后获得用于将选择电压施加到液晶的有效定时。 这缩短了选择周期的长度，从而缩短了写入时间。

公开(公告)号：US5684503A

公开(公告)日：1997-11-04

申请号：US199369

申请日：1994-02-18

申请人： Hiroaki Nomura ,  Yuzuru Sato ,  Akira Inoue ,  Takaaki Tanaka ,  Kenichi Momose

发明人： Hiroaki Nomura ,  Yuzuru Sato ,  Akira Inoue ,  Takaaki Tanaka ,  Kenichi Momose

IPC分类号： G02F1/133 ,  G09G3/36

CPC分类号： G09G3/3629 ,  G09G3/3681 ,  G09G3/3692 ,  G09G2300/0486 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2310/065 ,  G09G2320/0247 ,  G09G2320/041 ,  G09G2320/10

摘要： A method of driving a liquid crystal that has a memory capability, wherein a reset voltage is initially applied to the liquid crystal during a reset period, to bring about a Frederick's transition in the liquid crystal. During a subsequent selection period, a selection voltage that is selected on the basis of a critical value that brings about one of two metastable states in the liquid crystal is applied to the liquid crystal, and, during a nonselection period that follows the selection period, a nonselection voltage that is less than or equal to a threshold value that maintains two metastable states is applied to the liquid crystal. A delay period is provided between the reset period and the selection period, in order to gain effective timing for applying the selection voltage to the liquid crystal after the application of the reset voltage has been turned off. This shortens the length of the selection period, and hence the write time.

摘要翻译： 一种驱动具有记忆能力的液晶的方法，其中在复位期间初始向液晶施加复位电压，从而在液晶中产生腓特烈克氏转变。 在随后的选择期间，将基于在液晶中产生两个亚稳态中的一个的临界值选择的选择电压施加到液晶，并且在选择周期之后的非选择期间， 将小于或等于维持两个亚稳态的阈值的非选择电压施加到液晶。 在复位期间和选择期间之间设置延迟期间，以便在施加复位电压已经被关闭之后获得用于将选择电压施加到液晶的有效定时。 这缩短了选择周期的长度，从而缩短了写入时间。

公开(公告)号：US6072558A

公开(公告)日：2000-06-06

申请号：US872288

申请日：1997-06-09

申请人： Takaaki Tanaka ,  Yuzuru Sato

发明人： Takaaki Tanaka ,  Yuzuru Sato

IPC分类号： G02F1/133 ,  G02F1/1337 ,  G02F1/139 ,  G09G3/36 ,  G02F1/13 ,  C09K19/02

CPC分类号： G02F1/1391 ,  G02F1/1397 ,  G09G3/3629 ,  G02F1/133371 ,  G09G2300/0486 ,  G09G2310/06 ,  G09G2310/061

摘要： A display characteristic of a high contrast ratio and a high transmittance through the application of a chiral nematic liquid crystal medium switchable between metastable states via Frederick's transition is utilized as a liquid crystal electrooptical element. The electrooptical element employs a white light source and is switchable between metastable states in which the polarization axes of both polarization plates are set to predetermined angles P and A according to the initial state of the liquid crystal medium and the product, R, of the thickness, d, and the difference, .DELTA.n, in the refractive indices of the liquid crystal medium for extraordinary light, n.sub.e, and ordinary light, n.sub.o (.DELTA.n=n.sub.e -n.sub.o).

摘要翻译： 作为液晶电光元件，利用通过施加通过腓特烈转变的亚稳态之间切换的手性向列型液晶介质的高对比度和高透射率的显示特性。 电光元件采用白光源，并且在亚稳态之间可切换，其中根据液晶介质的初始状态将两个偏振片的偏振轴设置为预定角度P和A，并且厚度R的乘积R ，d，以及用于非凡光，ne和普通光的液晶介质的折射率的差ΔTAΔn，（DELTA n = ne-no）。

公开(公告)号：US5488499A

公开(公告)日：1996-01-30

申请号：US93290

申请日：1993-07-15

申请人： Takaaki Tanaka ,  Yuzuru Sato

发明人： Takaaki Tanaka ,  Yuzuru Sato

IPC分类号： G02F1/133 ,  G02F1/1337 ,  G02F1/139 ,  G09G3/36 ,  G02F1/13 ,  G02F1/1335

CPC分类号： G02F1/1391 ,  G02F1/1397 ,  G09G3/3629 ,  G02F1/133371 ,  G09G2300/0486 ,  G09G2310/06 ,  G09G2310/061

摘要： A display characteristic of a high contrast ratio and a high transmittance through the application of a chiral nematic liquid crystal medium switchable between metastable states via Frederick's transition is utilized as a liquid crystal electrooptical element. The electrooptical element employs a white light source and is switchable between metastable states in which the polarization axes of both polarization plates are set to predetermined angles P and A according to the initial state of the liquid crystal medium and the product, R, of the thickness, d, and the difference, .DELTA.n, in the refractive indices of the liquid crystal medium for extraordinary light, n.sub.e, and ordinary light, n.sub.o (.DELTA.n=n.sub.e -n.sub.o).

摘要翻译： 作为液晶电光元件，利用通过施加通过腓特烈转变的亚稳态之间切换的手性向列型液晶介质的高对比度和高透射率的显示特性。 电光元件采用白光源，并且在亚稳态之间可切换，其中根据液晶介质的初始状态将两个偏振片的偏振轴设置为预定角度P和A，并且厚度的乘积R ，d，以及用于非凡光，ne和普通光的液晶介质的折射率的差ΔTAΔn，（DELTA n = ne-no）。

公开(公告)号：US5459481A

公开(公告)日：1995-10-17

申请号：US50241

申请日：1993-07-02

申请人： Takaaki Tanaka ,  Yuzuru Sato

发明人： Takaaki Tanaka ,  Yuzuru Sato

IPC分类号： G02F1/133 ,  G09G3/20 ,  G09G3/36

CPC分类号： G09G3/3633 ,  G09G2310/06 ,  G09G2310/061 ,  G09G3/2011

摘要： A time-sharing addressing method for an antiferroelectric phase liquid crystal element that demonstrates tristable switching behavior, wherein the drive voltage waveform is made an alternating current and the time average value of the voltage, including the depolarization field due to spontaneous polarization of the liquid crystal, actually applied to the liquid crystal substance in one frame or two frames is made zero for the purpose of expanding the drive voltage margin and the operating temperature margin of the element, shortening the screen scanning time and preventing degradation of the electro-optical characteristic by suppressing polarization of the electric charge due to spontaneous polarization of the liquid crystal. Also, by providing the blanking period required for relaxation from a ferroelectric phase to an antiferroelectric phase in the non-selection period, the time required for screen scanning is shortened, and by changing the length of the blanking period according to the temperature dependence of the response-relaxation time, the operating temperature margin is expanded.

摘要翻译： PCT No.PCT / JP92 / 00411 Sec。 371日期：1993年7月2日 102（e）日期1993年7月2日PCT 1992年4月3日提交PCT。一种反铁电相液晶元件的分时寻址方法，其表现出三重切换行为，其中驱动电压波形为交流电，时间 在一帧或两帧中实际施加到液晶物质的包括由于液晶的自发极化引起的去极化的电压的平均值为零，以扩大驱动电压余量和工作温度裕度 元件，通过抑制由于液晶的自发极化引起的电荷的偏振，缩短了屏幕扫描时间并防止了电光特性的劣化。 此外，通过在非选择期间中提供从铁电相放电到反铁电相所需的消隐期，屏幕扫描所需的时间缩短，并且通过根据温度依赖性改变消隐周期的长度 响应弛豫时间，工作温度裕度扩大。

公开(公告)号：US08829710B2

公开(公告)日：2014-09-09

申请号：US12962390

申请日：2010-12-07

申请人： Yasuhiro Takahashi ,  Takaaki Tanaka ,  Toru Kubo ,  Toshiaki Hata ,  Hideki Umemoto

发明人： Yasuhiro Takahashi ,  Takaaki Tanaka ,  Toru Kubo ,  Toshiaki Hata ,  Hideki Umemoto

IPC分类号： B60R22/00 ,  F02P9/00 ,  H02G3/00 ,  F02N11/08 ,  F02N11/10

CPC分类号： F02N11/0825 ,  F02N11/0818 ,  F02N11/087 ,  F02N11/10 ,  Y02T10/48

摘要： A starter driving semiconductor switch apparatus energizes and de-energizes a starter according to a command from an outside. A series circuit to which semiconductor switches are connected in series is provided between a battery serving as a power supply and the starter. The starter is energized by bringing all the semiconductor switches into conduction. A voltage or a current at a predetermined point in the series circuit is monitored to make a self-diagnosis on whether the starter is allowed to start and whether there is a failure in the semiconductor switches according to a monitor output. The starter driving semiconductor switch apparatus is thus expected to have a longer useful life by energizing the starter not by using mechanical contacts but by using semiconductor switches.

摘要翻译： 启动器驱动半导体开关装置根据来自外部的指令使启动器通电和断电。 在用作电源的电池和起动器之间提供串联连接有半导体开关的串联电路。 通过使所有的半导体开关导通来启动启动器。 监视串联电路中的预定点处的电压或电流，以便根据监视器输出是否启动起动器以及半导体开关是否发生故障进行自我诊断。 因此，启动器驱动半导体开关装置通过使用机械触点而不是通过使用半导体开关来激励起动器而具有更长的使用寿命。

公开(公告)号：US08130331B2

公开(公告)日：2012-03-06

申请号：US12821374

申请日：2010-06-23

申请人： Takaaki Tanaka

发明人： Takaaki Tanaka

IPC分类号： G02F1/1335

CPC分类号： G03B21/006 ,  G02B27/26 ,  G02B27/283 ,  H04N13/324 ,  H04N13/337 ,  H04N13/363

摘要： Provided are an illumination optical system allowing light beams to be condensed and enter an illumination area at different angles from each other, color separating elements that separate colors of the light beams from the illumination optical systems, liquid crystal light valves that modulate the color lights to form image light for the right and the left eyes, a color combining element that combines the color light beams, a wavelength-selective polarization rotating element that rotates the polarization direction of a predetermined color light so as to align the polarization direction with that of a light beam of another color, and a projection lens that magnifies and projects images. The liquid crystal light valves are provided with an incident side microlens array that causes the light beams for the right and the left eyes to pass respectively through the right and the left eye image pixels, and an exit side microlens array that condenses the light that has passed through the pixels. The projection lens is provided with a polarized light separating element that causes the polarization directions of image light for the right and the left eyes to be orthogonal to each other. Using one projection-type display apparatus, a highly efficient stereoscopic image can be displayed with little flicker and cross talk of image light for the right eye and for the left eye.

摘要翻译： 提供了一种照明光学系统，其允许光束被聚光并且以彼此不同的角度进入照明区域，将来自照明光学系统的光束的颜色分离的分色元件，将颜色调制的液晶光阀 形成用于右眼和左眼的图像光，组合彩色光束的颜色组合元件，使预定颜色光的偏振方向旋转的波长选择性偏振旋转元件，以使偏振方向与 另一种颜色的光束，以及放大和投影图像的投影透镜。 液晶光阀设有入射侧微透镜阵列，其使右眼和左眼的光束分别通过右眼图像像素和左眼图像像素，以及出射侧微透镜阵列，其使具有 通过像素。 投影透镜设置有使得右眼和左眼的图像光的偏振方向彼此正交的偏振光分离元件。 使用一个投影型显示装置，可以以少许的右眼和左眼的图像光的闪烁和串扰来显示高效的立体图像。