SBIR Phase I: Bistable FLCs using Siloxanes

SBIR 第一阶段：使用硅氧烷的双稳态 FLC

• 批准号: 0539885
• 负责人: William Thurmes
• 金额: $ 10万
• 依托单位: Displaytech Incorporated
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-01-01 至 2006-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0539885&HistoricalAwards=false
• 关键词: SBIR; Phase; Bistable; FLCs; using

This Small Business Innovation Research (SBIR) Phase I project aims to develop commercially practical bistable FLC displays. Ferroelectric liquid crystals (FLCs) attractively combine a high speed electro-optic effect with very low-power drive, but, absent bistability, suffer restrictions on operational duty cycle that limit achievable display brightness. Exciting results obtained recently with an organosiloxane FLC compound suggest that it overcomes smectic layer shrinkage and surface interaction problems that have until now foiled FLC bistability. The work proposed here seeks to show that this singular result can be extended to other related compounds, setting the stage for Phase II development of bistable FLC mixtures engineered to have fast switching with suitable switching angles over the broad temperature ranges needed for practical applications. Further, it seeks to show that deficiencies in aligning compounds of this type can be overcome to give improved contrast ratio. The Phase I effort includes synthesis and evaluation of new siloxane mesogen compounds; formulation of mixtures from new and existing compounds, and evaluation of conventional as well as novel alignment treatments. Fundamental scientific questions about liquid crystal phase behavior and surface interactions lie at the heart of the remarkable recent results which the proposed work will begin to answer.Commercially, bistable FLC devices will enable micro-projection displays utilizing new high-brightness LED and laser light sources. Micro-projectors deliver flat panel display functionality with higher performance and lower cost than conventional approaches such as AMLCDs. Initial applications include sunlight readable, reconfigurable automotive dashboard, entertainment, and navigation displays, a 15-million-unit, $100MM market. Ultimate success would include penetration of the multi-billion-dollar laptop computer, monitor, and television display markets. FLC bistability further enables high-performance write heads for emerging holographic data storage markets.

该小型企业创新研究（SBIR）第一阶段项目旨在开发商业实用的可扩展FLC显示器。铁电液晶（FLC）有吸引力地将高速电光效应与非常低的功率驱动联合收割机相结合，但是，在没有双稳态的情况下，受到对操作占空比的限制，这限制了可实现的显示亮度。最近获得的有机硅氧烷FLC化合物的令人兴奋的结果表明，它克服了近晶层收缩和表面相互作用的问题，直到现在挫败FLC双稳态。这里提出的工作旨在表明，这种奇异的结果可以扩展到其他相关的化合物，设置阶段的第二阶段开发的CFDFLC混合物工程具有快速切换与合适的开关角在广泛的温度范围内需要的实际应用。此外，它试图表明，可以克服这种类型的配向化合物的缺陷，以提供改善的对比度。第一阶段的工作包括合成和评估新的硅氧烷介晶化合物;从新的和现有的化合物的混合物的配方，以及传统的和新的对齐处理的评估。有关液晶相行为和表面相互作用的基本科学问题是最近的显着成果的核心，拟议的工作将开始回答。商业上，CRFLC设备将使微投影显示器利用新的高亮度LED和激光光源。微型投影仪提供平板显示功能，具有比AMLCD等传统方法更高的性能和更低的成本。最初的应用包括阳光可读，可重新配置的汽车仪表板，娱乐和导航显示器，一个1500万台，1亿美元的市场。最终的成功将包括渗透数十亿美元的笔记本电脑，显示器和电视显示器市场。FLC双稳态进一步为新兴的全息数据存储市场提供高性能写入头。