In this study, mixtures of two different commercially available liquid crystals (LC) were used to formulate a technologically viable LC operating at room temperature. Nematic E7 (BDH) and cholesteric TM74A were mixed at different weight ratios with 10 % increments. Transition temperatures were deter-mined via Differential Scanning Calorimetry and phase identification was done using Optical Polarizing Microscopy. The phase diagram showed the existence of three different phases for the temperature range of IG-80 degreesC --cholesteric-nematic mesophase. smectic A phase and isotropic. For mixtures that are largely nematic (more than 50% E7), the smectic phase has vanished and the cholestric-nematic phase dominated from 30-60 degreesC.