A directional evacuation lighting apparatus used during an emergency evacuation situation for a building where an emergency sign with direction is projected on the floor to help direct and locate closest safety exit. 3-38% by weight pigment, 13-45% by weight polyurethane, and 0-85% by weight glycerin, wherein said polyurethane has a viscosity which increases by at least a factor of 10 when said polyurethane is dried from a 30% dispersion of said polyurethane in water to a 65% polyurethane dispersion in water. At least one higher suction pressure suction chamber is configured to provide higher suction pressure suction and is used in conjunction with the de-watering process of the present invention. Doped polysilicon gate stacks are then formed over the wells. The network connection may be via wireless access points, or suitable docking units. The method includes entering a mini-mode and displaying a mirror image, which is the same as an original image with a smaller size than that of the original image, in the mini-mode on the screen; detecting a touch input which is generated on the mirror image; and performing a function corresponding to the touch input.