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21.发明授权Fast switchable and high diffraction efficiency grating ferroelectric liquid crystal cell 有权快速可切换和高衍射效率的光栅铁电液晶单元公开(公告)号：US09575366B2
公开(公告)日：2017-02-21
申请号：US13723744
申请日：2012-12-21
发明人： Abhishek Kumar Srivastava , Wei Hu , Yanqing Lu , Fei Xu , Vladimir Grigorievich Chigrinov , Hoi Sing Kwok
IPC分类号： G02F1/1337 , G02F1/1335 , G02F1/141
CPC分类号： G02F1/133788 , G02F1/133528 , G02F1/133753 , G02F1/141 , G02F2001/133757
摘要： A liquid crystal cell structure is provided. The liquid crystal cell structure includes: two polarizers; and a liquid crystal diffractive light modulating cell placed between the two polarizers. The cell includes: two transparent substrates treated by photoalignment; and a ferroelectric liquid crystal layer disposed between the two transparent substrates with current conducting layers, the ferroelectric liquid crystal layer comprising ferroelectric liquid crystals. The two transparent substrates treated by photoalignment are configured to provide multiple alignment domains in the ferroelectric liquid crystals with a planar surface orientation. Adjacent domains of the multiple alignment domains are oriented at an angle with respect to each other.
摘要翻译： 提供了一种液晶单元结构。 液晶单元结构包括：两个偏振器; 以及放置在两个偏振器之间的液晶衍射光调制元件。 电池包括：通过光取向处理的两个透明基板; 以及设置在具有导电层的两个透明基板之间的铁电液晶层，所述强电介质液晶层包含铁电液晶。 通过光对准处理的两个透明基板被配置成在具有平面表面取向的铁电液晶中提供多个取向域。 多个对准域的相邻结构域相对于彼此以一定角度取向。
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公开(公告)号：US09341855B2
公开(公告)日：2016-05-17
申请号：US13888061
申请日：2013-05-06
IPC分类号： G02B27/28
CPC分类号： G02B27/286 , G02B27/285
摘要： A polarization converter and polarization conversion systems are provided. The polarization converter and polarization conversion systems include a patterned polarization grating with left hand and right hand polarization grating domains. The polarization grating domains are configured to diffract incident non-polarized light into beams having left and right circular polarization states.
摘要翻译： 提供了偏振转换器和偏振转换系统。 偏振转换器和偏振转换系统包括具有左手和右手偏振光栅域的图案化偏振光栅。 偏振光栅域被配置为将入射的非偏振光衍射成具有左和右圆偏振状态的光束。
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公开(公告)号：US09214568B2
公开(公告)日：2015-12-15
申请号：US14104762
申请日：2013-12-12
发明人： Hoi Sing Kwok , Meng Zhang , Shuming Chen , Wei Zhou , Man Wong
IPC分类号： H01L21/00 , H01L29/786 , H01L29/66
CPC分类号： H01L29/78696 , H01L29/6675 , H01L29/78675
摘要： A thin film transistor includes: a source region; a drain region; and a polycrystalline thin film active channel region connected to the source region and the drain region, the active channel region comprising grains and being doped with a two-dimensional pattern comprising a plurality of doped regions, the plurality of doped regions each comprising at least portions of a plurality of the grains and at least one grain boundary.
摘要翻译： 薄膜晶体管包括：源极区; 漏区; 以及连接到源区和漏区的多晶薄膜有源沟道区，所述有源沟道区包含晶粒并掺杂有包括多个掺杂区的二维图案，所述多个掺杂区各自包括至少部分 的多个晶粒和至少一个晶界。
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24.发明申请公开(公告)号：US20130169909A1
公开(公告)日：2013-07-04
申请号：US13723744
申请日：2012-12-21
发明人： Abhishek Kumar Srivastava , Wei Hu , Yanqing Lu , Fei Xu , Vladimir Grigorievich Chigrinov , Hoi Sing Kwok
IPC分类号： G02F1/1337 , G02F1/1335
CPC分类号： G02F1/133788 , G02F1/133528 , G02F1/133753 , G02F1/141 , G02F2001/133757
摘要： A liquid crystal cell structure is provided. The liquid crystal cell structure includes: two polarizers; and a liquid crystal diffractive light modulating cell placed between the two polarizers. The cell includes: two transparent substrates treated by photoalignment; and a ferroelectric liquid crystal layer disposed between the two transparent substrates with current conducting layers, the ferroelectric liquid crystal layer comprising ferroelectric liquid crystals. The two transparent substrates treated by photoalignment are configured to provide multiple alignment domains in the ferroelectric liquid crystals with a planar surface orientation. Adjacent domains of the multiple alignment domains are oriented at an angle with respect to each other.
摘要翻译： 提供了一种液晶单元结构。 液晶单元结构包括：两个偏振器; 以及放置在两个偏振器之间的液晶衍射光调制元件。 电池包括：通过光取向处理的两个透明基板; 以及设置在具有导电层的两个透明基板之间的铁电液晶层，所述强电介质液晶层包含铁电液晶。 通过光对准处理的两个透明基板被配置成在具有平面表面取向的铁电液晶中提供多个取向域。 多个对准域的相邻结构域相对于彼此以一定角度取向。
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公开(公告)号：US10712618B2
公开(公告)日：2020-07-14
申请号：US15909649
申请日：2018-03-01
发明人： Hoi Sing Kwok , Martin Schadt , Fan Fan
IPC分类号： G02F1/1337
摘要： Devices and method of fabrication a liquid crystal electro-optic device which is based on light scattering and diffraction from a multiple domain field-effect liquid crystal configuration are provided. The multiple domains include random liquid crystal alignment directions fabricated by photo-alignment and have sizes ranging from sub-micrometer to several micrometers. The random alignment in the plane can be of two or more directions whereas the pretilt angle can vary between zero and 90°. The randomness of the planar directions of the liquid crystal director can be generated by a designed photo mask in combination with uniaxial photo-alignment.
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公开(公告)号：US09818607B2
公开(公告)日：2017-11-14
申请号：US14745752
申请日：2015-06-22
发明人： Hoi Sing Kwok , Man Wong , Rongsheng Chen , Meng Zhang , Wei Zhou
IPC分类号： H01L29/04 , H01L21/02 , H01L29/786 , H01L29/16 , H01L29/32
CPC分类号： H01L21/02672 , H01L21/02422 , H01L21/02532 , H01L21/02592 , H01L29/04 , H01L29/16 , H01L29/32 , H01L29/786
摘要： Techniques are provided for forming thin film transistors having a polycrystalline silicon active layer formed by metal-induced crystallization (MIC) of amorphous silicon in an oxidizing atmosphere. In an aspect, a transistor device, is provided that includes a source region and a drain region formed on a substrate, and an active channel region formed on the substrate and electrically connecting the source region and the drain region. The active channel region is formed with a polycrystalline silicon layer having resulted from annealing an amorphous silicon layer formed on the substrate and having a metal layer formed thereon, wherein the annealing of the amorphous silicon layer was at least partially performed in an oxidizing ambience, thereby resulting in crystallization of the amorphous silicon layer to form the polycrystalline silicon layer.
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公开(公告)号：US09739448B2
公开(公告)日：2017-08-22
申请号：US14689666
申请日：2015-04-17
IPC分类号： F21V9/14 , F21V13/02 , G02B27/28 , G02F1/1335 , G02F1/13363 , F21Y115/10
CPC分类号： F21V9/14 , F21V13/02 , F21Y2115/10 , G02B27/283 , G02B27/286 , G02F1/133526 , G02F1/133603 , G02F1/13362 , G02F1/13363
摘要： A liquid crystal display (LCD) backlight system includes: a light source, configured to generate light; a patterned polarization grating polarization converter (PPG-PC) assembly, configured to convert the generated light from a first polarization state to a second polarization state. The PPG-PC further includes: a patterned polarization grating (PPG) having a plurality of domains, wherein the plurality of domains of the PPG include at least two different types of domains, and wherein each domain of the PPG is configured to diffract incident light into first and second types of light beams corresponding to a first diffraction order; and a patterned retarder (PR), having a plurality of domains, the plurality of domains of the PR including domains corresponding to areas where the first type of light beams output from the PPG and including domains corresponding to areas where the second type of light beams output from the PPG converge.
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公开(公告)号：US20160187691A1
公开(公告)日：2016-06-30
申请号：US15066227
申请日：2016-03-10
IPC分类号： G02F1/139 , G02F1/137 , G02F1/141 , G02F1/1335 , G02F1/1337
CPC分类号： G02F1/1396 , G02F1/13306 , G02F1/133528 , G02F1/1337 , G02F1/13781 , G02F1/141 , G02F2001/133622 , G09G3/36 , G09G2300/0404 , G09G2310/0235
摘要： An electrically suppressed helix (ESH) ferroelectric liquid crystal (FLC) display cell with fast response includes: a liquid crystal layer, disposed between two transparent substrates, wherein helix pitch of chiral smectic liquid crystals of the liquid crystal layer is less than the thickness of the liquid crystal layer; at least one polarizer; and a voltage source, configured to apply electrical driving voltage pulses to electrodes of the display cell with amplitude greater than a critical voltage for helix unwinding of the chiral smectic liquid crystals.
摘要翻译： 具有快速响应的电抑制螺旋（ESH）铁电液晶（FLC）显示单元包括：液晶层，设置在两个透明基板之间，其中液晶层的手性近晶液晶的螺旋间距小于 液晶层; 至少一个偏振片; 以及电压源，其被配置为向所述显示单元的电极施加电驱动电压脉冲，其幅度大于所述手性近晶液晶的螺旋解卷的临界电压。
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公开(公告)号：US20150079302A1
公开(公告)日：2015-03-19
申请号：US14553539
申请日：2014-11-25
IPC分类号： G02F1/1337 , G02F1/01 , G02F1/13 , 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。
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