Abstract: In this paper d.c. reflection mode liquid crystal light valves (LCLV) made from thin films of polyvinylcarbazole-2, 4, 7-trinitrofluorenone (PVK-TNF) charge transfer complex and chiral nematie-nematic phase transition liquid crystal coupled with a MgF₂/ZnS dielectric reflecting interlayer and their light valve characteristics are described, including the dependence of the threshold voltage and the response time on input light intensity and the temperature.The above LCLVs show good light valve effect, which can be used to perform the real-time image conversion from noncoherent to coherent light and also for image storing. Clear projected large area image can be observed.