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本文介绍了一种新型的摩擦技术——同心圆摩擦(简称CCR)方法。与普通STN液晶盒相比,CCR液晶盒具有宽而均匀的视角特性、低的阈值特性和快速响应特性。在液晶混合物中加入光聚合物,获得了稳定的CCR液晶盒。 相似文献
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介绍扭曲型液晶器件的光学设计考虑,从扭曲型液晶盒的光学计算出发,首先分析了双折射型和导波型两类扭曲型液晶盒不同的光学特性,进而给出了扭曲型液晶器件的设计要点,并且举例分析比较了OMI和STN/180,以及双折射型TN和无取向TN的显示特性。 相似文献
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VGA—STN—LCD的程序设计 总被引:1,自引:1,他引:0
本文介绍了在VGA-STN液晶显示器显示程序设计方面所做的一些工作,研究了STN液晶显示器的显示特性,介绍了几种通用的数字半色调显示方法,并在此基础上针对我们研制的单色和多色STN液晶显示器优化设计了显示驱动程序。 相似文献
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本文研究了在不同的实验条件下铁电液晶的排列状态,实验中得到了表面双稳铁电液晶(SSFLC).分析了它的记忆机理,并测量了它的电光特性、响应时间及其锥角(CONEANGLE)。最后我们讨论了双稳区的蜕变机理。 相似文献
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提出了一种新颖的液晶显示器-无补偿超扭曲LCD。这种XSTN在扭角,液晶混合物参数,盒厚与双折射系数的乘积,以及偏振片的取向等方面均经特殊设计,表现出良好的电光特性。对于它的亮度,对比度以及多路能力的理论预见已为为实验所证实。 相似文献
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回顾液晶科学和液晶显示技术的发展历程,盘点液晶科学和液晶显示产业的辉煌成就,列数为液晶科学和液晶显示产业做出贡献的国内外液晶领域科学家,赞叹液晶把世界显示得缤纷多彩,介绍《现代显示》杂志和河北工业大学应用物理系为中国液晶显示事业所尽的微薄贡献。 相似文献
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Flower-like CuS nanostructures have been
synthesized via a liquid precipitation route by the reaction
between CuCl2·2H2O and thioacetamide (CH3CSNH2,
TAA) in the ionic liquid 1-butyl-3-methyl imidazole
six hexafluorophosphoric acid salts ([BMIM][PF6]) aqu
eous solution at room temperature. The products were
characterized by X-ray powder diffraction (XRD), field
emission scanning electronic microscopy (FESEM),
Brunauer-Emmett-Teller (BET), Ultraviolet-Visible Spec
trophotometer (UV-Vis) and Photoluminescence (PL)
techniques. The as-prepared CuS nanostructures have a
mean diameter of about 1 μm. A plausible mechanism was
proposed to explain the formation of CuS nanostructures.
The effects of experimental parameters on the formation of
the products were also explored. With BET theory, it is
found that the as-prepared CuS nanostrucures have a
specific area of 39m2/g. The Barrett-Joyner-Halenda
(BJH) pore size distribution of the as-prepared CuS
nanostructures presents smaller pores centers about
60 nm. The UV-Vis and PL curves indicate that the as
prepared CuS nanostructres are promising candidates for
the development of photoelectric devices. 相似文献
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Mizuki Tenjimbayashi Sadaki Samitsu Yuko Watanabe Yasuyuki Nakamura Masanobu Naito 《Advanced functional materials》2021,31(21):2010957
Liquid marble (LM) is a droplet that is wrapped by hydrophobic solid particles, which behave as a non-wetting soft solid. Based on these properties, LM can be applied in fluidics and soft device applications. A wide variety of functional particles have been synthesized to form functional LMs. However, the formation of multifunctional LMs by integrating several types of functional particles is challenging. Here, a general strategy for the flexible patterning of functional particles on droplet surfaces in a patchwork-like design is reported. It is shown that LMs can switch their macroscopic behavior between a stable and active state on super-repellent surfaces in situ by jamming/unjamming the surface particles. Active LMs hydrostatically coalesce to form a self-sorted particle pattern on the droplet surface. With the support of LM handling robotics, on-demand cyclic activation–manipulation–coalescence–stabilization protocols by LMs with different sizes and particle types result in the reliable design of multi-faced LMs. Based on this concept, a single bi-functional LM is designed from two mono-functional LMs as an advanced droplet carrier. 相似文献
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Anne Helene Gelebart Danqing Liu Dirk J. Mulder Kevin H. J. Leunissen Jop van Gerven Albert P. H. J. Schenning Dirk J. Broer 《Advanced functional materials》2018,28(10)
Many publications report on stimuli responsive coatings, but only a few on the controlled release of species in order to change the coating surface properties. A sponge‐like coating that is able to release and absorb a liquid upon exposure to light has been developed. The morphology of the porous coating is controlled by the smectic liquid crystal properties of the monomer mixture prior to its polymerization, and homeotropic order is found to give the largest contraction. The fast release of the liquid can be induced by a macroscopic contraction of the coating caused by a trans to cis conversion of a copolymerized azobenzene moiety. The liquid secretion can be localized by local light exposure or by creating a surface relief. The uptake of liquid proceeds by stimulating the back reaction of the azo compound by exposure at higher wavelength or by thermal relaxation. The surface forces of the sponge‐like coating in contact with an opposing surface can be controlled by light‐induced capillary bridging revealing that the controlled release of liquid gives access to tunable adhesion. 相似文献
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为了研究掺钕无机惰性液体的配制、光谱和激光特性,采用实验研究的方法,在实验室制备了无机惰性液体激光增益介质Nd-POCl3-SnO2,测试了其抽运吸收和荧光特性;采用氙灯抽运和行波放大的方法实验研究了该液体的增益特性,并进行了初步的自由振荡出光实验。得到了性质稳定的掺钕无机惰性液体,利用该液体作为增益介质的放大器获得了1%/cm的增益系数,激光器实验则获得了中心波长为1051nm、脉宽为83.33μs的自由振荡激光输出。结果表明,掺钕无机惰性液体的配制的必要措施是干燥条件的保证,同时Lewis酸和掺钕浓度对于液体的荧光寿命也起到限制作用,该液体增益介质的光谱特性接近激光钕玻璃,单脉冲工作条件下可以得到稳定的激光输出。 相似文献