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1. 发明申请

US20060209232A1 Method of fabricating electro-optical devices with polymer-stabilized liquid crystal molecules 有权
公开(公告)号：US20060209232A1
公开(公告)日：2006-09-21
申请号：US11365412
申请日：2006-03-01
申请人： Lachezar Komitov , Liang-Chy Chien , Sang Kim
发明人： Lachezar Komitov , Liang-Chy Chien , Sang Kim
IPC分类号： G02F1/1333
CPC分类号： G02F1/13718 , G02F1/133711 , G02F2001/13775
摘要： In a preparation method, a chiral or cholesteric liquid crystal, a photoreactive monomer, and a photoinitiator are disposed in a liquid crystal cell. A principal surface of the liquid crystal cell is illuminated with ultraviolet light selected to have a non-uniform ultraviolet light intensity profile in the liquid crystal cell. The illuminating cooperates with the photoinitiator to polymerize at least a portion of the photoreactive monomer near the principal surface to generate a polymer network having a density corresponding to the non-uniform ultraviolet light intensity profile. The polymer network biases the liquid crystal toward a selected helical alignment direction. In some embodiments, the illuminating includes illuminating with first and second ultraviolet light intensity profiles to produce surface and volume polymer network components.

2. 发明申请

US20050162585A1 Electro-optical devices from polymer-stabilized liquid crystal molecules 有权
标题翻译：聚合物稳定液晶分子的电光装置
公开(公告)号：US20050162585A1
公开(公告)日：2005-07-28
申请号：US10766273
申请日：2004-01-28
申请人： Lachezar Komitov , Liang-Chy Chien , Sang Kim
发明人： Lachezar Komitov , Liang-Chy Chien , Sang Kim
IPC分类号： G02F1/1333 , G02F1/137
CPC分类号： G02F1/13718 , G02F2001/13775
摘要： An electro-optic device includes a liquid crystal cell (10, 10′) and at least one electrode (40, 42, 40′, 42′) arranged to selectively electrically bias the liquid crystal cell (10, 10′). A chiral or cholesteric liquid crystal (30, 30′) is disposed in the liquid crystal cell (10, 10′). The liquid crystal (10, 10′) has an optic axis substantially along a selected optic axis direction in the absence of an electrical bias. A polymeric network (32, 32′, 72) is disposed at an inside surface of the liquid crystal cell (10, 10′). The polymeric network (32, 32′, 72) extends partway into the liquid crystal cell (10, 10′) leaving at least a portion of the liquid crystal cell (10, 10′) substantially free of the polymeric network (32, 32′, 72).
摘要翻译：电光器件包括液晶单元（10,10'）和至少一个电极（40,42,40'，42'），其布置成选择性地电偏置液晶单元（10,10'）。在液晶单元（10,10'）中设置手性或胆甾型液晶（30,30'）。在没有电偏压的情况下，液晶（10,10'）具有基本上沿所选择的光轴方向的光轴。聚合物网络（32,32'，72）设置在液晶单元（10,10'）的内表面。聚合物网络（32,32'，72）在中途延伸到液晶单元（10,10'）中，使至少一部分液晶单元（10,10'）基本上不含聚合物网络（32,32） '，72）。

3. 发明授权

US07499125B2 Method of fabricating electro-optical devices with polymer-stabilized liquid crystal molecules 有权
标题翻译：用聚合物稳定液晶分子制造电光装置的方法
公开(公告)号：US07499125B2
公开(公告)日：2009-03-03
申请号：US11365412
申请日：2006-03-01
申请人： Lachezar Komitov , Liang-Chy Chien , Sang Hwa Kim
发明人： Lachezar Komitov , Liang-Chy Chien , Sang Hwa Kim
IPC分类号： G02F1/1333 , G02F1/13 , C09K19/52
CPC分类号： G02F1/13718 , G02F1/133711 , G02F2001/13775
摘要： In a preparation method, a chiral or cholesteric liquid crystal, a photoreactive monomer, and a photoinitiator are disposed in a liquid crystal cell. A principal surface of the liquid crystal cell is illuminated with ultraviolet light selected to have a non-uniform ultraviolet light intensity profile in the liquid crystal cell. The illuminating cooperates with the photoinitiator to polymerize at least a portion of the photoreactive monomer near the principal surface to generate a polymer network having a density corresponding to the non-uniform ultraviolet light intensity profile. The polymer network biases the liquid crystal toward a selected helical alignment direction. In some embodiments, the illuminating includes illuminating with first and second ultraviolet light intensity profiles to produce surface and volume polymer network components.
摘要翻译：在制备方法中，在液晶单元中设置手性或胆甾型液晶，光反应性单体和光引发剂。液晶单元的主表面被选择为在液晶单元中具有不均匀的紫外光强度分布的紫外光照射。照明与光引发剂配合使得在主表面附近的至少一部分光反应性单体聚合以产生具有对应于非均匀紫外光强度分布的密度的聚合物网络。聚合物网络朝向所选择的螺旋排列方向偏压液晶。在一些实施例中，照明包括利用第一和第二紫外光强度分布的照射，以产生表面和体积的聚合物网络组件。

4. 发明申请

US20090152772A1 METHOD OF FABRICATING ELECTRO-OPTICAL DEVICES WITH POLYMER-STABILIZED LIQUID CRYSTAL MOLECULES 失效
标题翻译：用聚合物稳定的液晶分子制备电光器件的方法
公开(公告)号：US20090152772A1
公开(公告)日：2009-06-18
申请号：US12392389
申请日：2009-02-25
申请人： Lachezar Komitov , Liang-Chy Chien , Sang Hwa Kim
发明人： Lachezar Komitov , Liang-Chy Chien , Sang Hwa Kim
IPC分类号： B29C67/00
CPC分类号： G02F1/13718 , G02F1/133711 , G02F2001/13775
摘要： In a preparation method, a chiral or cholesteric liquid crystal, a photoreactive monomer, and a photoinitiator are disposed in a liquid crystal cell. A principal surface of the liquid crystal cell is illuminated with ultraviolet light selected to have a non-uniform ultraviolet light intensity profile in the liquid crystal cell. The illuminating cooperates with the photoinitiator to polymerize at least a portion of the photoreactive monomer near the principal surface to generate a polymer network having a density corresponding to the non-uniform ultraviolet light intensity profile. The polymer network biases the liquid crystal toward a selected helical alignment direction. In some embodiments, the illuminating includes illuminating with first and second ultraviolet light intensity profiles to produce surface and volume polymer network components.
摘要翻译：在制备方法中，在液晶单元中设置手性或胆甾型液晶，光反应性单体和光引发剂。液晶单元的主表面被选择为在液晶单元中具有不均匀的紫外光强度分布的紫外光照射。照明与光引发剂配合使得在主表面附近的至少一部分光反应性单体聚合以产生具有对应于非均匀紫外光强度分布的密度的聚合物网络。聚合物网络朝向所选择的螺旋排列方向偏压液晶。在一些实施例中，照明包括利用第一和第二紫外光强度分布的照射，以产生表面和体积的聚合物网络组件。

5. 发明授权

US07038743B2 Electro-optical devices from polymer-stabilized liquid crystal molecules 有权
标题翻译：聚合物稳定液晶分子的电光装置
公开(公告)号：US07038743B2
公开(公告)日：2006-05-02
申请号：US10766273
申请日：2004-01-28
申请人： Lachezar Komitov , Liang-Chy Chien , Sang Hwa Kim
发明人： Lachezar Komitov , Liang-Chy Chien , Sang Hwa Kim
IPC分类号： G02F1/1333 , C09K19/02
CPC分类号： G02F1/13718 , G02F2001/13775
摘要： An electro-optic device includes a liquid crystal cell (10, 10′) and at least one electrode (40, 42, 40′, 42′) arranged to selectively electrically bias the liquid crystal cell (10, 10′). A chiral or cholesteric liquid crystal (30, 30′) is disposed in the liquid crystal cell (10, 10′). The liquid crystal (10, 10′) has an optic axis substantially along a selected optic axis direction in the absence of an electrical bias. A polymeric network (32, 32′, 72) is disposed at an inside surface of the liquid crystal cell (10, 10′). The polymeric network (32, 32′, 72) extends partway into the liquid crystal cell (10, 10′) leaving at least a portion of the liquid crystal cell (10, 10′) substantially free of the polymeric network (32, 32′, 72).
摘要翻译：电光器件包括液晶单元（10,10'）和至少一个电极（40,42,40'，42'），其布置成选择性地电偏置液晶单元（10,10'）。在液晶单元（10,10'）中设置手性或胆甾型液晶（30,30'）。在没有电偏压的情况下，液晶（10,10'）具有基本上沿所选择的光轴方向的光轴。聚合物网络（32,32'，72）设置在液晶单元（10,10'）的内表面。聚合物网络（32,32'，72）在中途延伸到液晶单元（10,10'）中，使至少一部分液晶单元（10,10'）基本上不含聚合物网络（32,32） '，72）。

6. 发明授权

US08081272B2 Method of fabricating electro-optical devices with polymer-stabilized liquid crystal molecules 失效
标题翻译：用聚合物稳定液晶分子制造电光装置的方法
公开(公告)号：US08081272B2
公开(公告)日：2011-12-20
申请号：US12392389
申请日：2009-02-25
申请人： Lachezar Komitov , Liang-Chy Chien , Sang Hwa Kim
发明人： Lachezar Komitov , Liang-Chy Chien , Sang Hwa Kim
IPC分类号： G02F1/1333 , G02F1/13 , C09K19/52
CPC分类号： G02F1/13718 , G02F1/133711 , G02F2001/13775
摘要： In a preparation method, a chiral or cholesteric liquid crystal, a photoreactive monomer, and a photoinitiator are disposed in a liquid crystal cell. A principal surface of the liquid crystal cell is illuminated with ultraviolet light selected to have a non-uniform ultraviolet light intensity profile in the liquid crystal cell. The illuminating cooperates with the photoinitiator to polymerize at least a portion of the photoreactive monomer near the principal surface to generate a polymer network having a density corresponding to the non-uniform ultraviolet light intensity profile. The polymer network biases the liquid crystal toward a selected helical alignment direction. In some embodiments, the illuminating includes illuminating with first and second ultraviolet light intensity profiles to produce surface and volume polymer network components.
摘要翻译：在制备方法中，在液晶单元中设置手性或胆甾型液晶，光反应性单体和光引发剂。液晶单元的主表面被选择为在液晶单元中具有不均匀的紫外光强度分布的紫外光照射。照明与光引发剂配合使得在主表面附近的至少一部分光反应性单体聚合以产生具有对应于非均匀紫外光强度分布的密度的聚合物网络。聚合物网络朝向所选择的螺旋排列方向偏压液晶。在一些实施例中，照明包括利用第一和第二紫外光强度分布的照射，以产生表面和体积的聚合物网络组件。

7. 发明申请

US20110129622A1 ALIGNMENT LAYER FOR LCD 审中-公开
标题翻译： LCD对准层
公开(公告)号：US20110129622A1
公开(公告)日：2011-06-02
申请号：US13001144
申请日：2009-06-25
申请人： Lachezar Komitov , Giancarlo Galli , Emo Chiellini , Andrea Morelli
发明人： Lachezar Komitov , Giancarlo Galli , Emo Chiellini , Andrea Morelli
IPC分类号： C09K19/56 , C08G77/42 , B05D5/12
CPC分类号： G02F1/133711 , C08F290/068 , C08G77/20 , G02F1/133719 , G02F1/133723 , G02F2001/133742 , Y10T428/1014 , C08F220/24
摘要： A polymer for use in an alignment layer for a liquid crystal material is provided. The polymer comprises a polymer backbone comprising a plurality of repeating units, said repeating units being divided into at least two groups, wherein each repeating unit in a first group of said repeating units is functionalized with a pendant sidechain of a first type S1; each repeating unit in a second group of said repeating units is functionalized with a pendant sidechain of a second type S2; said first type of sidechain S1 comprising a fluorine substituted hydrocarbon group; and said second type of sidechain S2 comprising a siloxane. The polymer of the invention promotes homeotropic alignment of liquid crystal materials.
摘要翻译：提供了一种用于液晶材料取向层的聚合物。所述聚合物包括包含多个重复单元的聚合物主链，所述重复单元被分成至少两个基团，其中第一组所述重复单元中的每个重复单元用第一类型S1的侧链侧链官能化; 所述重复单元的第二组中的每个重复单元用第二类型S2的侧链侧链官能化; 所述第一类型的侧链S1包含氟取代的烃基; 并且所述第二类型的侧链S2包含硅氧烷。本发明的聚合物促进液晶材料的垂直取向。

8. 发明授权

US07907236B2 Liquid crystal device for generation and fast switching of high contrast images 有权
标题翻译：用于生成高速对比图像的快速切换液晶装置
公开(公告)号：US07907236B2
公开(公告)日：2011-03-15
申请号：US11892399
申请日：2007-08-22
申请人： Lachezar Komitov , Nils Olsson , Bertil Helgee
发明人： Lachezar Komitov , Nils Olsson , Bertil Helgee
IPC分类号： G02F1/1335
CPC分类号： G02F1/1416 , C09K19/0266 , C09K19/406 , G02F1/1337 , G02F2001/1412
摘要： An electro-optic device including a liquid crystal material is disclosed, comprising antiferroelectric liquid crystals with large molecular tilt θ of about 45° degrees, disposed between two flat glass or polymer substrates. The liquid crystal molecules are preferably oriented parallel to the substrates (so-called HAF texture). The device is e.g. placed between two crossed polarizers so that in field-off conditions the impinging light is not passing through the device due to the isotropic optical properties of the antiferreoelectric liquid crystal aligned in HAF texture. An applied electric field induces a continuous transition of the optically isotropic antiferreoelectric (AF) state to ferroelectric (F) one which is birefringent enabling the transmission of light. The field-induced continuous switching between the optically isotropic antiferreoelectric state and the birefringent ferroelectric state enables the generation and fast switching of high contrast as well as generation of grey scale levels.
摘要翻译：公开了一种包括液晶材料的电光装置，包括具有大分子倾斜角度的反铁电液晶; 约45度，设置在两个平板玻璃或聚合物基板之间。液晶分子优选平行于基底定向（所谓的HAF纹理）。该装置是例如放置在两个交叉的偏振器之间，使得在场离开条件下，由于以HAF纹理排列的反铁电液晶的各向同性光学特性，入射光不会通过该装置。施加的电场引起光学各向同性的反铁电（AF）状态与能够传输光的双折射的铁电（F）的连续转变。光学各向同性的反铁电状态和双折射铁电状态之间的场致连续切换能够实现高对比度的产生和快速切换以及灰度级的产生。

9. 发明申请

US20080049175A1 Liquid crystal device for generation and fast switching of high contrast images 有权
标题翻译：用于生成高速对比图像的快速切换液晶装置
公开(公告)号：US20080049175A1
公开(公告)日：2008-02-28
申请号：US11892399
申请日：2007-08-22
申请人： Lachezar Komitov , Nils Olsson , Bertil Helgee
发明人： Lachezar Komitov , Nils Olsson , Bertil Helgee
IPC分类号： G02F1/1335 , G02F1/1337
CPC分类号： G02F1/1416 , C09K19/0266 , C09K19/406 , G02F1/1337 , G02F2001/1412
摘要： An electro-optic device including a liquid crystal material is disclosed, comprising antiferroelectric liquid crystals with large molecular tilt θ of about 45° degrees, disposed between two flat glass or polymer substrates. The liquid crystal molecules are preferably oriented parallel to the substrates (so-called HAF texture). The device is e.g. placed between two crossed polarizers so that in field-off conditions the impinging light is not passing through the device due to the isotropic optical properties of the antiferreoelectric liquid crystal aligned in HAF texture. An applied electric field induces a continuous transition of the optically isotropic antiferreoelectric (AF) state to ferroelectric (F) one which is birefringent enabling the transmission of light. The field-induced continuous switching between the optically isotropic antiferreoelectric state and the birefringent ferroelectric state enables the generation and fast switching of high contrast as well as generation of grey scale levels.
摘要翻译：公开了一种包括液晶材料的电光装置，其包括设置在两个平板玻璃或聚合物基板之间的具有约45°角的大分子倾斜度的反铁电液晶。液晶分子优选平行于基底定向（所谓的HAF纹理）。该装置是例如放置在两个交叉的偏振器之间，使得在场离开条件下，由于以HAF纹理排列的反铁电液晶的各向同性光学特性，入射光不会通过该装置。施加的电场引起光学各向同性的反铁电（AF）状态与能够传输光的双折射的铁电（F）的连续转变。在光学各向同性的反铁电状态和双折射铁电状态之间的场致连续切换能够实现高对比度的产生和快速切换以及灰度级的产生。

10. 发明授权

US07916255B2 Cholesteric liquid crystal display (LCD) device, and method for its production 有权
标题翻译：胆固醇液晶显示（LCD）装置及其生产方法
公开(公告)号：US07916255B2
公开(公告)日：2011-03-29
申请号：US11665542
申请日：2005-10-18
申请人： Lachezar Komitov , Andriy Kozachenko
发明人： Lachezar Komitov , Andriy Kozachenko
IPC分类号： G02F1/1337 , H01L21/00 , G02F1/1333 , G02F1/1343
CPC分类号： G02F1/13718 , G02F1/133345 , G02F1/134327 , Y10T428/1036
摘要： A liquid crystal device is provided, having one or several display segments, a first display substrate, a second display substrate, a layer of liquid crystal material disposed between the first and second substrate; and layer of conductive material disposed on the substrates. The conductive layers form electrodes for applying an electric field across the liquid crystal for switching the liquid crystal material between a first optical state and a second optical state different from the first optical state. Image features of the display are further defined by the inclusion of a layer of patterned non-conductive or passive dielectric material on at least one of the substrates, the patterned material forming a mask defining image elements of the display segments.
摘要翻译：提供具有一个或多个显示段的液晶装置，第一显示基板，第二显示基板，设置在第一和第二基板之间的液晶材料层; 和设置在基板上的导电材料层。导电层形成用于在液晶上施加电场的电极，用于在不同于第一光学状态的第一光学状态和第二光学状态之间切换液晶材料。显示器的图像特征还通过在至少一个基底上包括图案化的非导电或无源介电材料层来形成，图案化材料形成限定显示段的图像元素的掩模。

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