Patent attributes
The invention disclosed provides a novel solution to the problems of the prior art. The device provides a low-cost active display system capable of use in many free-standing configurations. The device incorporates a modular design that has both reusable and non-reusable elements. The modular design further accommodates specially designed display screens which are electronically modified to match different battery configurations to maximize battery life. The device incorporates various sensors to recognize certain ambient conditions, customer proximity and customer approach direction. In one embodiment, the display largely remains dormant until a first long range trigger signal is detected, at which time the device reactivates the modified display and a second short range trigger signal is detected which then retrieves content from the memory to display it. The result is drastically extended battery life and reduced maintenance cost.