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公开(公告)号：US09046729B2
公开(公告)日：2015-06-02
申请号：US13428895
申请日：2012-03-23
IPC分类号： G02F1/1335 , G02F1/137 , G02F1/19 , G02F1/1347
CPC分类号： G02F1/13718 , G02F1/19 , G02F2001/13478
摘要： A liquid crystal optical device that includes a first substrate layer that is substantially flat and a second substrate layer that is substantially flat and parallel to the first substrate layer. The liquid crystal optical device further includes a layer of cholesteric liquid crystal disposed between the first substrate layer and the second substrate layer, where the layer of cholesteric liquid crystal is arranged in domains, each domain having a helical axis, wherein the helical axes of the domains have a plurality of orientations relative to an orientation of the first and second substrate layers, and where a wavefront of a light wave having a wavelength within a range of wavelengths changes after reflecting from the layer of cholesteric liquid crystal.
摘要翻译： 一种液晶光学器件，其包括基本上平坦的第一衬底层和基本上平坦且平行于第一衬底层的第二衬底层。 液晶光学器件还包括设置在第一衬底层和第二衬底层之间的胆甾醇型液晶层，其中胆甾型液晶层布置在畴中，每个畴具有螺旋轴，其中， 畴具有相对于第一和第二衬底层的取向的多个取向，并且其中波长在波长范围内的波长的波前在从胆甾型液晶层反射之后改变。
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公开(公告)号：US08471999B2
公开(公告)日：2013-06-25
申请号：US12988790
申请日：2009-04-20
IPC分类号： G02F1/13
CPC分类号： G02F1/29 , G02F1/133305 , G02F1/133784 , G02F2001/291 , G02F2001/294
摘要： Disclosed herein is a liquid crystal lens with a variable focal length. The gradient profile of the liquid crystals molecules that causes the gradient profile of the refractive index is achieved by inducing non-uniformly distributed anchoring energy and an external electric or magnetic field applied to the liquid crystal layer. Unlike existing electrically controlled liquid crystal lens, the external electric or magnetic field has a uniform spatial distribution within the liquid crystal layer. The focal length of the liquid crystal lens is controlled via the non-uniformly distributed anchoring energy and by varying the uniformly distributed electric or magnetic field.
摘要翻译： 这里公开了具有可变焦距的液晶透镜。 导致折射率梯度分布的液晶分子的梯度分布通过引起非均匀分布的锚定能量和施加到液晶层的外部电场或磁场来实现。 与现有的电控液晶透镜不同，外部电场或磁场在液晶层内具有均匀的空间分布。 通过非均匀分布的锚定能量和通过改变均匀分布的电场或磁场来控制液晶透镜的焦距。
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公开(公告)号：US20120307363A1
公开(公告)日：2012-12-06
申请号：US12923546
申请日：2010-09-28
申请人： Vladimir Markovich Kozenkov , Wing Chiu Yip , Vladimir Grigorievich Chigrinov , Elena Karlovna Prudnikova , Hoi Sing Kwok
发明人： Vladimir Markovich Kozenkov , Wing Chiu Yip , Vladimir Grigorievich Chigrinov , Elena Karlovna Prudnikova , Hoi Sing Kwok
CPC分类号： G02B5/3016 , G02B1/04 , G02B5/305
摘要： A method of forming a polarizing material is provided including exposing a layer of dichroic material to activating light illumination to provide an ordered structure with a distinguished absorption axis and thus photo-induce polarization, and fixing the induced polarization by polymerization of the dichroic layer. Novel polarizing materials formed thereby are also provided. By selectively exposing regions of the dichroic material to differing activating radiation, different regions with different polarization axes can be created. The polarizing material can also be provided with a coating or coatings to alter the spectral responses, and a stack formed of a plurality if dichroic layers can be provided.
摘要翻译： 提供一种形成偏振材料的方法，包括：使一层二向色材料暴露于激发光照，以提供具有不同吸收轴的有序结构，从而引起光诱导极化，并通过二向色层的聚合来固定诱导极化。 还提供了由此形成的新型偏振材料。 通过将二向色材料的区域选择性地暴露于不同的激活辐射，可以产生具有不同偏振轴的不同区域。 偏振材料还可以具有改变光谱响应的涂层或涂层，并且可以提供由多个如果二向色层形成的叠层。
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公开(公告)号：US08120735B2
公开(公告)日：2012-02-21
申请号：US12331954
申请日：2008-12-10
IPC分类号： G02F1/1335 , G02F1/1343
CPC分类号： G02F1/133555 , G02F1/133788 , G02F1/1396 , G02F2001/133757 , G02F2202/40
摘要： Pixels of an LCD are divided into two sub-pixels, one for a reflective mode and one for a transmittive mode. The cell gaps of both sub-pixels are the same, improving fabrication ease. A novel photoalignment technique is used together with a shadow mask in an embodiment of the invention. Double exposure of the alignment layer with different orientations produces different alignment directions, thereby achieving the different LCD modes for the sub-pixels.
摘要翻译： LCD的像素被分成两个子像素，一个用于反射模式，一个用于透射模式。 两个子像素的单元间隙相同，提高了制造的容易性。 在本发明的实施例中，新颖的光对准技术与荫罩一起使用。 具有不同取向的对准层的双重曝光产生不同的取向方向，从而实现子像素的不同LCD模式。
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公开(公告)号：US20110043717A1
公开(公告)日：2011-02-24
申请号：US12988790
申请日：2009-04-20
IPC分类号： G02F1/1337 , G02F1/133
CPC分类号： G02F1/29 , G02F1/133305 , G02F1/133784 , G02F2001/291 , G02F2001/294
摘要： Disclosed herein is a liquid crystal lens with a variable focal length. The gradient profile of the liquid crystals molecules that causes the gradient profile of the refractive index is achieved by inducing non-uniformly distributed anchoring energy and an external electric or magnetic field applied to the liquid crystal layer. Unlike existing electrically controlled liquid crystal lens, the external electric or magnetic field has a uniform spatial distribution within the liquid crystal layer. The focal length of the liquid crystal lens is controlled via the non-uniformly distributed anchoring energy and by varying the uniformly distributed electric or magnetic field.
摘要翻译： 这里公开了具有可变焦距的液晶透镜。 导致折射率梯度分布的液晶分子的梯度分布通过引起非均匀分布的锚定能量和施加到液晶层的外部电场或磁场来实现。 与现有的电控液晶透镜不同，外部电场或磁场在液晶层内具有均匀的空间分布。 通过非均匀分布的锚定能量和通过改变均匀分布的电场或磁场来控制液晶透镜的焦距。
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6.发明授权公开(公告)号：US08755022B2
公开(公告)日：2014-06-17
申请号：US13110680
申请日：2011-05-18
申请人： Vladimir Grigorievich Chigrinov , Evgeny Pavlovich Pozhidaev , Anatoli Alexandrovich Murauski , Hoi Sing Kwok
发明人： Vladimir Grigorievich Chigrinov , Evgeny Pavlovich Pozhidaev , Anatoli Alexandrovich Murauski , Hoi Sing Kwok
IPC分类号： G02F1/141
CPC分类号： G02F1/1416 , G02F2203/34
摘要： The invention relates to liquid crystal display cells with fast response and continuous gray scale. The liquid crystal cell is based on a field-sequential color system (“FSC”) and comprises a chiral smectic liquid crystal whose helix pitch is less than thickness of liquid crystal layer placed between two polarizers, as well as a source of voltage applied to electrodes of the cell, wherein the amplitude of the applied voltage is less than the critical voltage amplitude of the helix unwinding. The liquid crystal has one steady state corresponding to twisted helix without applied voltage. In this case, the principal optical axis coincides with the helical axes, but deviates from steady state under the action of a driving voltage, providing thereby an electro-optical response of the display which exhibits gray scale in light transmission or reflection that is continuous, hysteretic-free and non-sensitive to the driving voltage polarity, if the steady orientation of the principle axes is parallel or perpendicular to the light polarization plane and the driving voltage frequency is between 10 Hz and 5 kHz. In embodiments with very short helix pitches, the cells may be free from selective reflection and diffraction in the visible spectral range. Different embodiments of the invention may use ferroelectric liquid crystal, ferroelectric liquid crystal, or antiferroelectric liquid crystal.
摘要翻译： 本发明涉及具有快速响应和连续灰度级的液晶显示单元。 液晶单元基于场顺序色系（“FSC”），其包括手性近晶液晶，其螺旋间距小于放置在两个偏振器之间的液晶层的厚度，以及施加到 电极的电极，其中所施加的电压的幅度小于螺旋展开的临界电压幅度。 液晶具有对应于扭曲螺旋的一个稳态，而没有施加电压。 在这种情况下，主光轴与螺旋轴一致，但是在驱动电压的作用下偏离稳态，从而提供在连续的光透射或反射中显示出灰度的显示器的电光响应， 如果主轴的稳定取向平行或垂直于光偏振平面，驱动电压频率在10Hz和5kHz之间，则对驱动电压极性不敏感，不敏感。 在具有非常短的螺旋间距的实施例中，单元可以在可见光谱范围内没有选择性反射和衍射。 本发明的不同实施例可以使用铁电液晶，铁电液晶或反铁电液晶。
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7.发明申请公开(公告)号：US20110285928A1
公开(公告)日：2011-11-24
申请号：US13110680
申请日：2011-05-18
申请人： Vladimir Grigorievich Chigrinov , Evgeny Pavlovich Pozhidaev , Anatoli Alexandrovich Murauski , Hoi Sing Kwok
发明人： Vladimir Grigorievich Chigrinov , Evgeny Pavlovich Pozhidaev , Anatoli Alexandrovich Murauski , Hoi Sing Kwok
IPC分类号： G02F1/133
CPC分类号： G02F1/1416 , G02F2203/34
摘要： The invention relates to liquid crystal display cells with fast response and continuous gray scale. The liquid crystal cell is based on a field-sequential color system (“FSC”) and comprises a chiral smectic liquid crystal whose helix pitch is less than thickness of liquid crystal layer placed between two polarizers, as well as a source of voltage applied to electrodes of the cell, wherein the amplitude of the applied voltage is less than the critical voltage amplitude of the helix unwinding. The liquid crystal has one steady state corresponding to twisted helix without applied voltage. In this case, the principal optical axis coincides with the helical axes, but deviates from steady state under the action of a driving voltage, providing thereby an electro-optical response of the display which exhibits gray scale in light transmission or reflection that is continuous, hysteretic-free and non-sensitive to the driving voltage polarity, if the steady orientation of the principle axes is parallel or perpendicular to the light polarization plane and the driving voltage frequency is between 10 Hz and 5 kHz. In embodiments with very short helix pitches, the cells may be free from selective reflection and diffraction in the visible spectral range. Different embodiments of the invention may use ferroelectric liquid crystal, ferroelectric liquid crystal, or antiferroelectric liquid crystal.
摘要翻译： 本发明涉及具有快速响应和连续灰度级的液晶显示单元。 液晶单元基于场顺序色系（“FSC”），其包括手性近晶液晶，其螺旋间距小于放置在两个偏振器之间的液晶层的厚度，以及施加到 电极的电极，其中所施加的电压的幅度小于螺旋展开的临界电压幅度。 液晶具有对应于扭曲螺旋的一个稳态，而没有施加电压。 在这种情况下，主光轴与螺旋轴一致，但是在驱动电压的作用下偏离稳态，从而提供在连续的光透射或反射中显示出灰度的显示器的电光响应， 如果主轴的稳定取向平行或垂直于光偏振平面，驱动电压频率在10Hz和5kHz之间，则对驱动电压极性不敏感，不敏感。 在具有非常短的螺旋间距的实施例中，单元可以在可见光谱范围内没有选择性反射和衍射。 本发明的不同实施例可以使用铁电液晶，铁电液晶或反铁电液晶。
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公开(公告)号：US20120092668A1
公开(公告)日：2012-04-19
申请号：US13274127
申请日：2011-10-14
CPC分类号： G02F1/133788 , G02B5/3016 , G02B5/3083 , G02B5/3091 , G02B27/286 , G02F1/0136 , G02F1/1313 , G02F2001/133638
摘要： The present invention provides a patterned polarization converter having multiple domains that can be used to convert input linear polarized light to output light with spatially varying polarization states, including domains that produce linearly polarized light and domains that produce circular polarized light based on the patterning of the domains. A patterned polarization converter having multiple domains may be used in a polarization sensor application capable of detecting the polarization state of input light. The present invention further provides patterned radial and azimuthal polarization converters, which have utility in applications such as optical tweezers. Additionally, patterned polarization converters may be used to fabricate more patterned polarization converters having the same pattern using one-step photoalignment to copy the pattern of an existing patterned polarization converter to an unpatterned photoalignment layer.
摘要翻译： 本发明提供一种具有多个畴的图案化偏振转换器，其可用于将输入线性偏振光转换成具有空间变化偏振状态的输出光，包括产生线性偏振光的畴和基于图案化的线性偏振光产生圆偏振光的畴 域名 具有多个畴的图案化偏振转换器可用于能够检测输入光的偏振状态的偏振传感器应用中。 本发明还提供了图案化的径向和方位偏振转换器，其在诸如光学镊子的应用中具有实用性。 此外，图案化的偏振转换器可以用于使用一步光对准来制造具有相同图案的更多图案化的偏振转换器，以将现有的图案化偏振转换器的图案复制到未图案化的光取向层。
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公开(公告)号：US07070913B2
公开(公告)日：2006-07-04
申请号：US09853648
申请日：2001-05-14
申请人： Vladimir Markovich Kozenkov , Wing Chiu Yip , Vladimir Grigorievich Chigrinov , Elena Karlovna Prudnikova , Hoi Sing Kwok
发明人： Vladimir Markovich Kozenkov , Wing Chiu Yip , Vladimir Grigorievich Chigrinov , Elena Karlovna Prudnikova , Hoi Sing Kwok
IPC分类号： G02B5/30
CPC分类号： G02B5/3033
摘要： The present invention provides a method of forming a polarizing material comprising exposing a layer of dichroic material to activating light illumination to provide an ordered structure with a distinguished absorption axis and thus photo-induce polarization, and fixing the induced polarization by polymerisation of the dichroic layer. The present invention also provides novel polarizing materials formed thereby. By selectively exposing regions of the dichroic material to differing activating radiation, different regions with different polarization axes can be created. The polarizing material can also be provided with a coating or coatings to alter the spectral response, and a stack formed of a plurality if dichroic layers may be provided.
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10.发明申请PIXEL STRUCTURE OF LIQUID CRYSTAL DISPLAY UTILIZING ASYMMETRICAL DIFFRACTION 审中-公开使用不对称衍射的液晶显示器的像素结构公开(公告)号：US20130314631A1
公开(公告)日：2013-11-28
申请号：US13984492
申请日：2012-02-10
IPC分类号： G02F1/1333
CPC分类号： G02F1/1333 , G02F1/133707 , G02F1/134309 , G02F1/23 , G02F2203/22 , G02F2203/34
摘要： A liquid crystal (LC) pixel, a method for providing an output thereof and a liquid crystal display device are provided. The LC pixel includes: a first electrode (5) having comb-like structures; an alignment layer (6) adjacent to the first electrode (5), wherein the alignment layer (6) is patterned with local areas that are different from the remaining area of the alignment layer (6) and wherein the local areas are configured to produce local defects in initial orientation in an LC layer (1) upon application of a control voltage; and the LC layer (1), configured to asymmetrically diffract light passing through the LC layer (1) based on configuration of the comb-like structures and the alignment layer (6).
摘要翻译： 提供液晶（LC）像素，提供其输出的方法和液晶显示装置。 LC像素包括：具有梳状结构的第一电极（5） 与所述第一电极（5）相邻的取向层（6），其中所述取向层（6）被图案化，所述局部区域与所述取向层（6）的剩余区域不同，并且其中所述局部区域被配置为产生 在施加控制电压时LC层（1）中初始取向的局部缺陷; 以及所述LC层（1），其被配置为基于所述梳状结构和所述取向层（6）的配置不对称地衍射通过所述LC层（1）的光。
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