Professional signage display

means an electronic display that is:

(1) Composed of an area greater than 1,400 square inches;

(2) Composed of two or more display panels, each with a diagonal size greater than 12 inches;

(3) Designed to be operated by an external data controller; and

(4) Designed and marketed for viewing by multiple people in a non-desk-based environment. Examples of such environments include stadiums, airports, and convention centers.