Fundamentals and applications of ferro- and antiferroelectric liquid crystals - the physics and chemistry of 'de Vries'-type materials

铁电和反铁电液晶的基础和应用 - “德弗里斯”型材料的物理和化学

• 批准号: 24840804
• 负责人: Professor Dr. Frank Gießelmann
• 金额: --
• 依托单位: Institut für Physikalische Chemie (IPC)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2008-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/24840804?language=en
• 关键词: Fundamentals; applications; ferro; antiferroelectric; liquid

With the recent leap to the TV market the current liquid crystal display technology touched upon the physical performance limits of the nematic phase on which it is based. For the future a transition to new technologies is needed, the most promising candidates being those based on ferro- and antiferroelectric chiral smectic liquid crystals (FLCs and AFLCs). Recently, two classes of materials have been identified which may overcome the remaining obstacles blocking a large-scale commercial break-through: orthoconic AFLCs and `de Vries¿-type smectics. As substances belonging to these categories are extremely rare, improving the understanding of the molecular structural requirements promoting the desired macroscopic properties is an important task of this project. Particular attention will be devoted to the intricate interplay of translational and orientational molecular order and the effects of mixing structurally different mesogens. The aim is to develop an in-depth understanding of the relevant structure¿property relations, allowing for the definition of synthetic strategies for the necessary extension of the pool of de Vries -type smectic liquid crystal materials.

随着最近向电视市场的飞跃，目前的液晶显示技术触及了其所基于的向列相的物理性能极限。未来需要向新技术过渡，最有希望的候选者是基于铁电和反铁电手性近晶液晶（FLCs和aflc）的技术。最近，已经确定了两类材料，它们可以克服阻碍大规模商业突破的剩余障碍：正交正交AFLCs和“德弗里斯”型smectics。由于这些类别的物质极为罕见，因此提高对分子结构要求的理解，促进所需的宏观性质是本项目的重要任务。特别注意将致力于翻译和定向分子秩序的复杂相互作用和混合结构不同的介原的影响。目的是深入了解相关的结构和性质关系，以便为德弗里斯型近晶液晶材料池的必要扩展定义合成策略。