In this paper, the authors aimed to propose a cost effective mobile based projector. Which is mostly applicable for video conferencing, representing seminar and gaming purpose (motion based games using flex sensor). The main frame of the proposed mobile based projector is divided into three parts. First one is lightning part which helps to increase the brightness of the projected screen. Second, are the LCD screen and finally, the combination of lenses. When the high intensity light passes through the LCD panel, the characters of the LCD screen are projected on the projector screen in an enlarged version with the help of the combination of lenses (i.e. three convex lenses and a Fresnel lens).