Abstract
Importance of liquid crystals used in display technology has been rapidly increased by technological developments in recent years. Guest–host liquid crystal displays (GH-LCDs) are widely utilized because of their many advantages such as color, wide viewing angle and high brightness. In this experimental work, azo and anthraquinone, two differently structured dies (Disperse Orange11 and 13), were separately doped to two different nematic liquid crystals (E63 and ZLI-1132). Their solubilities, order parameters, textures and phase transition temperatures were determined. The highest solubility value was attained with Orange 13 dye in ZLI-1132 while the highest order parameter was obtained with Orange 11 dye in E-63. These dyes did not significantly destabilize the mesomorphic phase of nematic hosts. It was also observed that any narrowing on the temperature range of the liquid crystals had not taken place with the addition of dopants to the crystal, on the contrary, an increase was recorded.
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