Do i need crutches for my broken toe. it is slightly displaced and i can't walk on it.

No: Buddy tape it to the adjacent toe and wear a hard shoe that doesn't bend at the toes for support. Follow up with your GP for X-Rays if not better in a few days. http://www.webmd.com/a-to-z-guides/tc/broken-toe-topic-overview

Depends: If by "displaced" you mean literally "out of place" then you may have a dislocated toe which is very different from a simple broken toe. A broken toe can usually be taped to the next toe and crutches aren't necessary unless it hurts to walk putting pressure on another part of your foot. A dislocated one may need to be put back in place. Have you had an x-ray? If so, ask the person who ordered.