Liquid Crystal Systems for Electro-Optical Storage Effects
Final rept. 15 Jun 1970-30 Sep 1971
RCA LABS PRINCETON NJ
Pagination or Media Count:
Research on materials and electro-optic response measurements of certain cholestericnematic mixtures was performed in an effort to develop an optical storage display. Mixture of selected compounds from the series, p- alkoxybenzylidene-p-aminophenyl acylates, were prepared and one ternary mixture NH-1 which exhibited nematic behavior from 25 to 105C was found. A group of optically active benzylidene aniline derivatives having alkoxy and acyloxy groups with asymmetric carbon atoms was prepared, and the compounds were found to exhibit cholesteric mesomorphism. A simulated, airborne ground location marker was constructed with a cell containing this material. In actual operation this device would provide the pilot or navigator of an aircraft with a map presentation of his past and present position as determined by two ground navigation stations.
- Physical Chemistry
- Electrooptical and Optoelectronic Devices