专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US08482506B2 Transient liquid crystal architecture 有权
标题翻译：瞬态液晶架构
公开(公告)号：US08482506B2
公开(公告)日：2013-07-09
申请号：US11967947
申请日：2007-12-31
申请人： Hoi Sing Kwok , Yuet Wing Li
发明人： Hoi Sing Kwok , Yuet Wing Li
IPC分类号： G09G3/38
CPC分类号： G09G3/3622 , G09G3/2011 , G09G3/2014 , G09G3/3406 , G09G3/3648 , G09G2300/0486 , G09G2310/0235 , G09G2310/0237 , G09G2310/061 , G09G2310/08 , G09G2320/0252
摘要： Methods and systems for displaying videos with high contrast using fast transient response of liquid crystal materials are disclosed. The system comprises a liquid crystal material treated with a chiral dopant, which is aligned between two substrates with conductive layer on each substrate. The system can be operated in an active or passive matrix mode display. The active matrix display can be a thin film transistor (TFT) or MOS transistor, whereas no transistors are used for the passive matrix mode display. A full color display, with high contrast, can be achieved by illuminating the transient liquid crystal material with a pulsed backlight.
摘要翻译：公开了使用液晶材料的快速瞬态响应来显示具有高对比度的视频的方法和系统。该系统包括用手性掺杂剂处理的液晶材料，其在每个基板上具有导电层的两个基板之间对准。该系统可以在主动或无源矩阵模式显示中运行。有源矩阵显示器可以是薄膜晶体管（TFT）或MOS晶体管，而无源晶体管用于无源矩阵模式显示。通过用脉冲背光照亮瞬态液晶材料，可以实现高对比度的全彩显示。

22. 发明授权

US08471999B2 Low voltage liquid crystal lens with variable focal length 有权
标题翻译：具有可变焦距的低压液晶镜头
公开(公告)号：US08471999B2
公开(公告)日：2013-06-25
申请号：US12988790
申请日：2009-04-20
申请人： Sergiy Valyukh , Vladimir Grigorievich Chigrinov , Hoi Sing Kwok
发明人： Sergiy Valyukh , Vladimir Grigorievich Chigrinov , Hoi Sing Kwok
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。

23. 发明申请

US20120242918A1 Cholesteric liquid crystal structure 有权
标题翻译：胆固醇液晶结构
公开(公告)号：US20120242918A1
公开(公告)日：2012-09-27
申请号：US13428895
申请日：2012-03-23
申请人： Sergiy Valyukh , Vladimir Chigrinov , Hoi Sing Kwok , Iryna Valyukh
发明人： Sergiy Valyukh , Vladimir Chigrinov , Hoi Sing Kwok , Iryna Valyukh
IPC分类号： G02F1/1335
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。

24. 发明申请

US20120092668A1 Patterned polarization converter 审中-公开
标题翻译：图案偏振转换器
公开(公告)号：US20120092668A1
公开(公告)日：2012-04-19
申请号：US13274127
申请日：2011-10-14
申请人： Tao Du , Vladimir Grigorievich Chigrinov , Hoi Sing Kwok
发明人： Tao Du , Vladimir Grigorievich Chigrinov , Hoi Sing Kwok
IPC分类号： G01J4/00 , G02B1/10 , G02B5/30
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。

25. 发明授权

US07070913B2 Photo-induced dichroic polarizers and fabrication methods thereof 有权
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.

26. 发明授权

US06532051B1 Liquid crystal display with nonspecular reflectors 失效
标题翻译：液晶显示器与非特异性反射器
公开(公告)号：US06532051B1
公开(公告)日：2003-03-11
申请号：US09637983
申请日：2000-08-11
申请人： Colin T. Yeoh , Hoi Sing Kwok , York Liao
发明人： Colin T. Yeoh , Hoi Sing Kwok , York Liao
IPC分类号： G02F11335
CPC分类号： G02F1/133553 , G02F1/133504 , G02F1/1396 , G02F2001/133531 , G02F2202/40
摘要： The present invention deals with liquid crystal displays where the incident light and reflected light going through the display are not specularly related. The incident light can be at a range of angles to the display while the reflected light, i.e. the viewing direction is at or nearly normal to the display. For such nonspecular liquid crystal displays, the polarizer angles, the input/output directors of the liquid crystal cell, and the liquid crystal cell retardation have to be specially optimized to obtain the best viewing effects. Conventional liquid crystal display modes do not work optimally in this nonspecular situation. We also disclose the new image-mode and shadow-mode nonspecular liquid crystal displays. Such displays have very bright background and are free from viewing glare common in most liquid crystal displays. The present invention applies to all twist angles, e.g. the 90° TN, the 120° and 150° HTN, the 180°, 240° and 270° STN displays.
摘要翻译：本发明涉及通过显示器的入射光和反射光不是镜面相关的液晶显示器。入射光可以在与显示器的角度范围内，而反射光，即观察方向与显示器接近或接近正常。对于这种非特殊液晶显示器，必须特别优化偏振器角度，液晶单元的输入/输出指示器和液晶单元延迟以获得最佳观看效果。传统的液晶显示模式在这种非特殊情况下不能最佳地工作。我们还公开了新的图像模式和阴影模式非特定液晶显示器。这种显示器具有非常明亮的背景，并且在大多数液晶显示器中没有观察到眩光。本发明适用于所有扭转角，例如 90°TN，120°和150°HTN，180°，240°和270°STN显示。

27. 发明授权

US5999152A Electro-Optic display providing a grey scale by utilizing voltage dependent birefringence 失效
标题翻译：电光显示器通过利用电压依赖双折射提供灰度级
公开(公告)号：US5999152A
公开(公告)日：1999-12-07
申请号：US807503
申请日：1997-02-27
申请人： York Liao , Hoi Sing Kwok
发明人： York Liao , Hoi Sing Kwok
IPC分类号： G02F1/137 , G02F1/03 , G02F1/133 , G02F1/1333 , G02F1/1335 , G02F1/1343 , G02F1/136 , G02F1/1362 , G02F1/1368 , G02F1/139 , G09G3/36
CPC分类号： G02F1/1393 , G02F1/03 , G02F1/13439 , G02F1/1362 , G02F2203/02
摘要： The invention relates to an active matrix liquid crystal display device based on voltage control (non-zero driving voltage) of the birefringence (negative or positive) of the liquid crystal cell. In the device a ground (earth) plate comprises a piece of glass with a transparent conductive coating, such as indium tin oxide. A silicon wafer with integrated circuits on it has a coating of polymer for aligning liquid crystal molecules. The coated glass also has a coating for aligning the liquid crystal molecules.
摘要翻译：本发明涉及一种基于液晶单元的双折射（负或正）的电压控制（非零驱动电压）的有源矩阵液晶显示装置。在该装置中，接地（地）板包括具有透明导电涂层的玻璃片，例如氧化铟锡。其上具有集成电路的硅晶片具有用于对准液晶分子的聚合物涂层。涂覆的玻璃还具有用于对准液晶分子的涂层。

28. 发明授权

US09340634B2 Polymer for use in liquid crystal alignment layer 有权
标题翻译：用于液晶取向层的聚合物
公开(公告)号：US09340634B2
公开(公告)日：2016-05-17
申请号：US13522801
申请日：2011-03-29
申请人： Sayaka Nose , Yutaka Nagashima , Isa Nishiyama , Haruyoshi Takatsu , Martin Schadt , Vladimir Chigrinov , Hoi Sing Kwok
发明人： Sayaka Nose , Yutaka Nagashima , Isa Nishiyama , Haruyoshi Takatsu , Martin Schadt , Vladimir Chigrinov , Hoi Sing Kwok
IPC分类号： C08F220/10 , C08F220/30 , G02F1/133 , C08F222/10 , C08F220/26 , C09B69/10 , C08F220/36 , G02F1/1337
CPC分类号： C08F222/10 , C08F220/26 , C08F220/30 , C08F220/36 , C08F2220/305 , C08F2220/365 , C09B69/106 , G02F1/133711 , G02F1/133788 , G02F2001/133742 , Y10T428/1005
摘要： The present invention relates to materials used for aligning liquid crystals of liquid crystal display elements and to a polymer for use in liquid crystal vertical alignment layer used in producing a liquid crystal vertical alignment layer.The polymer for use in a liquid crystal vertical alignment layer includes (a) a moiety that is photochemically isomerizable but not photochemically crosslinked, (b) a moiety that is photochemically crosslinkable, and (c) a moiety that stabilizes a vertical alignment. The polymer can be used to produce a vertical alignment layer that has a liquid crystal alignment property enabling control of alignment at a low UV dose and that offers a large pretilt angle and superior optical stability.
摘要翻译：本发明涉及用于对准液晶显示元件的液晶的材料和用于制造液晶垂直取向层的液晶垂直取向层中使用的聚合物。用于液晶垂直取向层的聚合物包括（a）光化学可异构化而不是光化学交联的部分，（b）可光化学交联的部分，和（c）稳定垂直取向的部分。该聚合物可用于产生具有液晶取向性能的垂直取向层，其能够在低UV剂量下进行对准，并提供大的预倾角和优异的光学稳定性。

29. 发明授权

US08854580B2 Method of producing spatially variable pretilt angles across a liquid crystal cell 有权
标题翻译：在液晶单元上产生空间可变预倾角的方法
公开(公告)号：US08854580B2
公开(公告)日：2014-10-07
申请号：US13411250
申请日：2012-03-02
申请人： Hoi Sing Kwok , Yuet Wing Li , Man Chun Tseng
发明人： Hoi Sing Kwok , Yuet Wing Li , Man Chun Tseng
IPC分类号： G02F1/1337 , G02F1/141 , G02F1/29
CPC分类号： G02F1/133753 , G02F1/133723 , G02F1/133788 , G02F1/29 , G02F2001/133761 , G02F2001/294
摘要： A method of producing spatially varying pretilt angles across a liquid crystal cell coats a substrate with a polyimide alignment layer and a layer of photoalignment material on top of the polyimide layer. An applied beam with variable light dosage spatial or temporal profiles is then used to achieve a corresponding pretilt angle distribution.
摘要翻译：在液晶单元之间产生空间变化的预倾角的方法在聚酰亚胺层的顶部上涂布聚酰亚胺取向层和光取向材料层的基板。然后使用具有可变光量的空间或时间特征的施加光束来实现相应的预倾角分布。

30. 发明授权

US08755022B2 Liquid crystal display cell with fast response and continuous gray scale 有权
标题翻译：液晶显示单元，响应速度快，连续灰度
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式