You need a video splitter. An ATEN 2-port video splitter costs about $85 at Sim Lim.
A cheaper alternative would be a custom-made Y cable, but the video signal is likely to be affected for at least one of the projectors.
Some projector come with built in video spliter too, where you can loop the output of labtop to one projector, the output of projector go to another projector. First check the projector before jumping into buying a spliter, but if the projectors are to be placed far apart, then you need a long video cable in between the two projectors.
it will be same images..
basically i wanna run a slideshow for an event. but i have 2 screens, so wanna project the same slide show on the left and right of a stage.
erm...hope u get what i m asking...