公开(公告)号：WO1998050822A1

公开(公告)日：1998-11-12

申请号：PCT/US1997006747

申请日：1997-04-18

Applicant: ADVANCED DISPLAY SYSTEMS, INC.

Inventor： ADVANCED DISPLAY SYSTEMS, INC. ,  WU, Bao-Gang ,  GAO, Jianmi ,  ZHOU, Hongxi ,  MA, Yao-Dong

IPC: G02F01/137

CPC classification number: G02F1/13718 ,  G02F3/022 ,  G09G3/2018 ,  G09G3/3629 ,  G09G2300/0486 ,  G09G2310/06

Abstract: A light modulating apparatus containing cholesteric liquid crystals capable of indefinite zero field retention of optical images, including full color and complete gray scale capability, is described. This invention is predicated on establishment of zero field multistable liquid crystal domains representing a continuous distribution of states ranging from the highly reflective planar to the light-scattering focal-conic structures. The zero field multistable domain structure stability is achieved by controlling solid surface-liquid crystal boundary interactions to provide essential equalization of the total system energy of each of the domain structures. This equalization has been achieved without the use of a polymer gel addition to create rigid polydomains in the liquid crystal mix. The establishment of a particular domain structure is controlled using either a single relative long voltage pulse or a number of shorter duration successive voltage pulses. The zero field multistability achieved is remarkably stable against both mechanical shocks and thermal variations. These displays eliminate the need for backlighting and image refreshing input, and for polarizers, analyzers, retarder and color filters. They can also be fabricated as flexible all-plastic units.

Abstract translation: 描述了包含能够对包括全色和完全灰度级能力在内的光学图像的无限零场保持的胆甾型液晶的光调制装置。 本发明基于建立零场多维液晶畴，其表示从高反射平面到光散射聚焦圆锥结构的状态的连续分布。 通过控制固体表面 - 液晶边界相互作用来提供零域多结构域结构稳定性，以提供每个畴结构的总系统能量的基本均衡。 在不使用聚合物凝胶添加以在液晶混合物中产生刚性多晶畴的情况下，已经实现了这种均衡。 使用单个相对长电压脉冲或多个较短持续时间的连续电压脉冲来控制特定域结构的建立。 实现的零场多重性对于机械冲击和热变化都非常稳定。 这些显示屏消除了对背光和图像刷新输入以及偏振器，分析仪，延迟器和滤色器的需求。 它们也可以制作为柔性全塑单元。

公开(公告)号：WO2013148349A1

公开(公告)日：2013-10-03

申请号：PCT/US2013/032373

申请日：2013-03-15

Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK

Inventor： ENGLUND, Dirk, R. ,  GAN, Xuetao

IPC: G02F1/035

CPC classification number: G02B6/29331 ,  B82B1/00 ,  B82Y20/00 ,  G01J1/42 ,  G02B6/1225 ,  G02B6/32 ,  G02F1/0118 ,  G02F1/17 ,  G02F3/022 ,  G02F2202/32 ,  Y10S977/755

Abstract: Techniques for coupling light into graphene using a planar photonic crystal having a resonant cavity characterized by a mode volume and a quality factor and at least one graphene layer positioned in proximity to the planar photonic crystal to at least partially overlap with an evanescent field of the resonant cavity. At least one mode of the resonant cavity can coupled into the graphene layer via evanescent coupling. The optical properties of the graphene layer can be controlled, and characteristics of the graphene-cavity system can be detected. Coupling light into graphene can include electro-optic modulation of light, photodetection, saturable absorption, bistability, and autocorrelation.

Abstract translation: 使用具有谐振腔的平面光子晶体将光耦合到石墨烯中的技术，其特征在于模式体积和质量因子，以及至少一个位于平面光子晶体附近的石墨烯层至少部分地与谐振的渐逝场重叠 腔。 谐振腔的至少一种模式可以经由渐逝耦合耦合到石墨烯层中。 可以控制石墨烯层的光学性质，并且可以检测到石墨烯腔系统的特性。 将光耦合到石墨烯中可以包括光的光电调制，光电检测，可饱和吸收，双稳态和自相关。

公开(公告)号：WO1997038346A1

公开(公告)日：1997-10-16

申请号：PCT/JP1996001001

申请日：1996-04-11

Applicant: CHISSO CORPORATION ,  DEMUS, Dietrich ,  TARAO, Ryokichi ,  TAKEUCHI, Hiroyuki ,  MIYAZAWA, Kazutoshi

Inventor： CHISSO CORPORATION

IPC: G02F01/13

CPC classification number: G11B7/25 ,  G02F1/133362 ,  G02F1/139 ,  G02F3/022 ,  Y10T428/10

Abstract: Devices useful for storage of information which comprises mixtures of suitable chiral materials with nematic liquid crystals and in which by irradiation with light of two different wavelengths the chirality of the mixture can be reversibly switched between two stable states of different chirality, corresponding to two states of different optical properties.

Abstract translation: 用于存储信息的装置，其包括合适的手性材料与向列液晶的混合物，并且其中通过用两种不同波长的光照射混合物的手性可以在两种不同手性的稳定状态之间可逆地切换，对应于两种状态 不同的光学性能。