Abstract
Here we report on the study of vertical alignment of a nematic liquid crystal due to the segregation between perfluorinated and the polysiloxane groups of a multi-component composite alignment material. The measured surface anchoring energy was found to depend on the relative amount of polysiloxane matrix in the composite material. These kind of self-assembly will reduce the preparation time for display by eliminating few steps.
Highlights
Liquid Crystal alignment is the subject of interest ever since it is used in the display industry
We report on the study of vertical alignment of a nematic liquid crystal due to the segregation between perfluorinated and the polysiloxane groups of a multi-component composite alignment material
We report on the study of vertical alignment (VA) of a nematic liquid crystal promoted by multi-component composite alignment materials
Summary
Liquid Crystal alignment is the subject of interest ever since it is used in the display industry. Many materials capable to align liquid crystals (LC) have been discovered lately and used for preparation of alignment layers in liquid crystal displays (LCDs). Majority of these materials are devoted to vertical alignment (VA) since this kind of alignment offers some advantages such as high contrast ratio and no need for mechanical rubbing. Perfluorinated groups are widely used for many applications as self-assembled materials since they show very interesting properties such as low surface energy and high chemical and thermal stability [3,4,5,6,7]. In this work perfluorinated groups, regarding their properties, were used as a part of mixture to perform an alignment material as a feasible method to achieve a uniform good VA to fulfill LCDs development requirements
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