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公开(公告)号：US11977302B2
公开(公告)日：2024-05-07
申请号：US18078079
申请日：2022-12-08
发明人： Ming-Liang Tsai , Wu-Chang Yang , Chi-Chang Liao
IPC分类号： G02F1/133 , G02F1/1343 , G02F1/137 , G02F1/139
CPC分类号： G02F1/134309 , G02F1/13306 , G02F1/137 , G02F1/1391
摘要： A cholesteric liquid crystal display device and a driving method for improving non-uniform image quality of the cholesteric liquid crystal display device. The cholesteric liquid crystal display device includes a cholesteric liquid crystal display panel and a liquid crystal drive unit. The cholesteric liquid crystal display panel is composed of multiple row circuit structures and multiple column circuit structures. The liquid crystal driving unit sequentially outputs column driving voltages to a plurality of column circuit structures in a scanning manner. After scanning the multiple column circuit structures, the liquid crystal driving unit applies an unselected voltage to the multiple column circuit structures together with more than 18 times the scanning unit time course, so as to make the brightness of the overall picture more uniform.
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公开(公告)号：US09835923B2
公开(公告)日：2017-12-05
申请号：US14804707
申请日：2015-07-21
申请人： Liang-Chy Chien , Andrii Varanytsia
发明人： Liang-Chy Chien , Andrii Varanytsia
IPC分类号： G02F1/13 , G02F1/139 , G02F1/137 , G02F1/1337
CPC分类号： G02F1/1391 , G02F1/13718 , G02F2001/133742
摘要： A bistable liquid crystal spatial light modulating (SLM) device (SLM) device utilizes the homeotropic and bubble domain texture change of a cholesteric liquid crystal that is responsive to external stimuli, such as electric voltage, light and pressure. The SLM device is configured to be switched between the two stable textures of the bubble domain texture or the fingerprint texture. In addition, the SLM device may be switched between transparent and light-scattering states by the application of an electric field, light irradiation or physical/mechanical pressure. The light transmission state and the light-scattering states of the present invention are also stable in time at zero voltage, and are reversible upon the application of an external field at a different voltage, frequency or wavelength of light.
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公开(公告)号：US09758726B2
公开(公告)日：2017-09-12
申请号：US14889760
申请日：2014-07-11
申请人： LG CHEM, LTD.
发明人： Eun Jung Lim , Jung Woon Kim , Dong Hyun Oh
CPC分类号： C09K19/54 , C09K19/02 , C09K19/10 , C09K19/2007 , C09K2019/122 , C09K2019/2035 , G02F1/1391
摘要： Provided are a liquid crystal cell and a use thereof. An exemplary liquid crystal cell can be implemented in a bistable mode switching between a haze mode and a non-haze mode even with low driving voltage. Such a liquid crystal cell can be applied to various optical modulation apparatus, such as a smart window, a window protection film, a flexible display element, an active retarder for a 3D visual display, and a viewing angle-controlling film.
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公开(公告)号：US20170176784A1
公开(公告)日：2017-06-22
申请号：US14971094
申请日：2015-12-16
IPC分类号： G02F1/137 , G02F1/139 , G02F1/1334 , G02F1/133 , G02F1/1333 , G02F1/1335
CPC分类号： G02F1/137 , G02F1/13306 , G02F1/133305 , G02F1/13338 , G02F1/1334 , G02F1/133555 , G02F1/13718 , G02F1/1391 , G02F2203/02 , G02F2203/05 , G02F2203/34
摘要： A multicolored pressure sensitive liquid crystal device includes a first transparent substrate that is flexible on which pressure is applied and a second substrate spaced apart from the first substrate. Also included are electrically conductive layers, one of which is in contact with the first substrate and is transparent and another of which is in contact with the second substrate. The electrically conductive layers are separated from each other. Also included is a pressure sensitive liquid crystal layer including cholesteric liquid crystal disposed between the electrically conductive layers. The liquid crystal layer includes at least first and second color regions. The first color region reflects light of a first color and the second color region reflects light of a second color. The pressure applied to the substrate results in a change in reflectance of the liquid crystal. In another aspect, the liquid crystal layer can include at least first and second regions that differ from each other in terms of a characteristic selected from the group consisting of wavelength of reflection, reflectivity, linewidth, electrooptic response, pressure sensitivity and combinations thereof.
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5.发明授权公开(公告)号：US09212310B2
公开(公告)日：2015-12-15
申请号：US14074882
申请日：2013-11-08
申请人： Shyh-Yueh Wang , Xin-Jiu Wang , Chia-Hui Chen , Chiu-Yuan Huang , Yen-Liang Chen
发明人： Shyh-Yueh Wang , Xin-Jiu Wang , Chia-Hui Chen , Chiu-Yuan Huang , Yen-Liang Chen
CPC分类号： C09K19/22 , C09K19/02 , C09K19/2007 , C09K2019/2078 , G02F1/13718 , G02F1/1391 , G02F1/1392 , G02F2001/13706 , G02F2001/13712
摘要： A dual-frequency bistable liquid crystal display and the liquid crystal mixture thereof includes liquid crystal cell filled with a liquid crystal mixture which contains dual-frequency liquid crystal, chiral compound, and nematic liquid crystal mixture. The liquid crystal mixture has the characteristics of both the dual-frequency liquid crystal and cholesteric liquid crystal. The dual-frequency bistable liquid crystal display is driven in a frequency modulation mode and can be switched between two optical states by taking advantage of the dielectric anisotropy of the liquid crystal, which results in a short switching time and sharp contrast between two optical states. Furthermore, the maintaining of the two optical states requires no voltage, which does not require the use of a high voltage to destabilize the helical structure of the cholesteric liquid crystal, and does not have to go through a metastable stage. Hence, power consumption and switching time are reduced.
摘要翻译： 双频双稳态液晶显示器及其液晶混合物包括填充有包含双频液晶，手性化合物和向列型液晶混合物的液晶混合物的液晶单元。 该液晶混合物具有双频液晶和胆甾型液晶的特征。 双频双稳态液晶显示器以频率调制方式驱动，可通过利用液晶的介电各向异性而在两种光学状态之间切换，从而导致两个光学状态之间的切换时间短和对比度较高。 此外，两个光学状态的维持不需要电压，这不需要使用高电压来使胆甾型液晶的螺旋结构不稳定，并且不必经过亚稳态。 因此，功耗和切换时间减少。
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公开(公告)号：US09034429B2
公开(公告)日：2015-05-19
申请号：US12736897
申请日：2009-05-19
CPC分类号： G02F1/13378 , B82Y10/00 , B82Y40/00 , G02F1/1391 , G02F2001/133761 , G02F2202/28 , G03F7/0002
摘要： The invention relates to a method of patterning a layer formed from a fixable material such as photopolymer on a surface in a desired pattern. The method involves coating selected areas of the substrate with an adhesion promoter and subsequently coating the fixable material. The fixable material is then fixed, for instance by curing by exposure to UV radiation. The adhesion promoter is adapted to have a surface energy which is designed to adhere to the substrate or selected areas thereof and also to the fixed material such that fixed material may be easily removed from areas of the substrate not coated with adhesion promoter but retained in areas where the adhesion promoter has bonded to the substrate.
摘要翻译： 本发明涉及一种在所需图案的表面上图案化由可固定材料如光聚合物形成的层的方法。 该方法包括用粘合促进剂涂覆基底的选定区域，随后涂覆可固定材料。 然后固定可固化材料，例如通过暴露于紫外线辐射固化。 粘合促进剂适于具有被设计成粘附到基底或其选定区域以及固定材料上的表面能，使得固定材料可以容易地从未涂覆有粘合促进剂的基底的区域移除，但保留在区域 其中粘合促进剂已经结合到基底上。
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公开(公告)号：US09007551B2
公开(公告)日：2015-04-14
申请号：US12915637
申请日：2010-10-29
申请人： Makoto Yoneya , Jong-Hyun Kim , Hiroshi Yokoyama , Jun Yamamoto
发明人： Makoto Yoneya , Jong-Hyun Kim , Hiroshi Yokoyama , Jun Yamamoto
IPC分类号： G02F1/1337 , G02F1/139 , G02F1/1343
CPC分类号： G02F1/1391 , G02F1/133753 , G02F1/134363 , G02F1/1392 , G02F2001/133749 , G02F2001/133757
摘要： A high resolution, wide viewing angle, low power consumption liquid crystal display device which utilizes nematic liquid crystal and which can attain both the memory effect and wide-viewing-angle display characteristic. A liquid crystal display device that utilizes nematic liquid crystal and includes a pair of transparent substrates; a group of electrodes for applying to a liquid crystal layer disposed between the pair of substrates an electric field having a component substantially parallel to the surfaces of the substrates; and an alignment layer disposed between the liquid crystal layer and at least one of the pair of substrates and having been subjected to liquid crystal anchoring treatments in plural directions. The plurality of liquid crystal anchoring directions of the alignment layer form substantially equal angles relative to one another, and a rising angle in each of the liquid crystal anchoring directions with respect to the corresponding substrate surface is substantially zero.
摘要翻译： 高分辨率，宽视角，低功耗液晶显示装置，利用向列型液晶，可同时获得记忆效果和广视角显示特性。 一种利用向列液晶并包括一对透明基板的液晶显示装置; 一组电极，用于向设置在所述一对基板之间的液晶层施加具有基本上平行于所述基板的表面的分量的电场; 以及配置在所述液晶层和所述一对基板中的至少一个基板之间并且在多个方向上进行液晶锚定处理的取向层。 取向层的多个液晶锚定方向相对于彼此形成大致相等的角度，并且每个液晶锚定方向相对于相应基板表面的上升角基本为零。
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公开(公告)号：US08405591B2
公开(公告)日：2013-03-26
申请号：US12527416
申请日：2008-02-20
IPC分类号： G09G3/36
CPC分类号： G09G3/36 , G02F1/1391 , G09G3/3622 , G09G3/3651 , G09G2300/0486 , G09G2320/0209
摘要： The invention relates to a method for controlling a liquid crystal display, comprising a matrix of pixels arranged in crossed lines and columns and in which a switch in the state of the liquid crystal molecules, controlled by application of an electric control signal between two electrodes (50, 52) enclosing each pixel, which brings about a flow in a given direction (18), the pixel addressing being carried out by a line by line addressing either in a single step or in two steps, the first step comprising a collective addressing of at least a part of the screen in a given single texture, followed by a second step of line by line addressing, characterized in comprising, for controlling the switching of at least some of the pixels (P), a step for application to at least one adjacent pixel (58) of auxiliary electric signals wherein, depending on the direction of flow of the pixel (P) the switching of which is to be controlled, the rising or falling fronts of the auxiliary signals are temporally advanced in relation to or simultaneous with the active falling front of the electric control signal with a time offset of between 0 and several tens of microseconds at ambient temperature, such as to promote the switching of said pixel (P) for control, said auxiliary electric signals being applied in the second step when the addressing is in two steps. The invention further relates to a display.
摘要翻译： 本发明涉及一种用于控制液晶显示器的方法，包括以交叉线和列布置的像素矩阵，其中通过在两个电极之间施加电控制信号来控制液晶分子状态的开关（ 每个像素包围每个像素，其在给定的方向（18）上产生流动，所述像素寻址通过一个或多个步骤中的逐行寻址来执行，所述第一步骤包括集体寻址 在给定单个纹理中的屏幕的至少一部分，随后是逐行寻址的第二步骤，其特征在于包括用于控制至少一些像素（P）的切换，用于应用于 辅助电信号的至少一个相邻像素（58），其中，根据要切换控制的像素（P）的流动方向，辅助信号的上升或下降前沿是速度 在环境温度下，时间偏移在0和几十微秒之间，相对于电控制信号的有效下降沿而与其同时进行，以促进所述像素（P）的切换用于控制，所述辅助 当寻址为两步时，在第二步中应用电信号。 本发明还涉及显示器。
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公开(公告)号：US20120160393A1
公开(公告)日：2012-06-28
申请号：US13386893
申请日：2009-07-23
IPC分类号： B32B37/14
CPC分类号： G02F1/133711 , G02F1/1391 , Y10T156/10
摘要： The object of the invention is a method for making devices with bistable nematic liquid crystals, having a nematic liquid crystal layer placed between two plates, each plate including a strip, an electrode and an alignment layer for nematic liquid crystal, at least one of said alignment layers having low zenithal anchoring for said liquid crystal, small pre-tilt and medium or strong azimuthal anchoring, wherein said at least one of the alignment layers is prepared by depositing a solution comprising a polymer, said polymer is a copolymer or a terpolymer derived from vinyl chloride and vinyl ethers, said solution further comprising an additive, selected from the group formed by aromatic polyimides, precursors of the aromatic polyamic acid type or a mixture of these compounds.
摘要翻译： 本发明的目的是制造具有双向向列型液晶的装置的方法，其具有放置在两个板之间的向列型液晶层，每个板包括带状物，电极和向列液晶取向层，至少一个所述 所述对准层具有用于所述液晶的低天顶锚定，小的预倾斜和中等或强方位锚固，其中所述至少一个取向层通过沉积包含聚合物的溶液来制备，所述聚合物是衍生的共聚物或三元共聚物 所述溶液还包含选自由芳族聚酰亚胺形成的基团，芳族聚酰胺酸型前体或这些化合物的混合物的添加剂。
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10.发明授权公开(公告)号：US07884905B2
公开(公告)日：2011-02-08
申请号：US10543884
申请日：2004-02-09
申请人： John Clifford Jones
发明人： John Clifford Jones
IPC分类号： G02F1/1337
CPC分类号： G02F1/133753 , G02F1/13378 , G02F1/1391 , G02F2001/133757
摘要： This invention relates to a liquid crystal device wherein the surface profile of a surface alignment grating stabilizes at least one stable state. The invention involves the introduction or breaks (34, 36, 38) or discontinuities into the grating (10) to divide the grating into a plurality of groove segments. The breaks are discontinuities in the grating in the groove direction, the grating having substantially the same groove direction on each side of the break. The introduction of breaks prevent free movement of defects along the groove of the grating and therefore help to stabilize the desired liquid crystal configuration, either a Defect state or a Continuous state. Suitable breaks involve gaps (34) in the groove ridges (30), necks (36) between the groove ridges (30) and slips or relative displacement (38) of the grating.
摘要翻译： 本发明涉及一种液晶显示装置，其中表面对准光栅的表面轮廓稳定至少一个稳定状态。 本发明涉及到光栅（10）的引入或断开（34,36,38）或不连续，以将光栅分成多个凹槽段。 断裂在光栅中的凹槽方向是不连续的，光栅在断裂的每一侧具有基本上相同的凹槽方向。 引入断裂防止缺陷沿光栅槽的自由移动，从而有助于稳定所需的液晶结构，即缺陷状态或连续状态。 合适的断裂包括槽脊（30）中的间隙（34），凹槽脊（30）之间的颈部（36）和光滑的相对位移（38）。
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