US Patent 7703679 Trajectory compensating sighting device systems and methods

A sighting system for visually acquiring a target includes an optic device having a transmissive LCD array affixed thereon. The transmissive LCD array includes two or more LCD elements that are separately addressable to provide an aiming point. In embodiments, the sighting system receives information from an input system, such as ammunition information or environmental information, executes a ballistics program to determine ballistics information using the received information, and determines a range to the target. A controller calculates an aiming point using the ballistics information and the target range. The controller then addresses or energizes one of the LCD elements to provide the aiming point.