United Displays | Professional Electronic Signs signs, united display, united displays, rankin, electronic signs, led, message center, led sign, l.e.d. sign, l.e.d., jumbotron, biloxi, gulfport, gulfshores, pigeon forge, gatlinburg, gulf coast, tennessee, mississippi, kentucky, georgia, alabama, led display, optec, optec displays, hitech, daktronics, watchfire, outdoor advertising, sign, signage, illuminated sign, church sign, church signs, coliseum signs, coliseum sign, hotel sign, hotel signs, restaurant sign, restaurant signs, convention center sign, casino sign, casino signs, car dealer sign, car dealer signs, motel signs, motel sign United Displays is a Knoxville-based sign company, that specializes in electronic signs