The Kilsheimer family has seen the sign industry go through major shifts in three generations. When Gunther Kilsheimer founded Art Display Co. in 1947, the process was tedious — all signs were created by hand. That process changed in 1990, when computer generation became more accessible. That’s when Doug Kilsheimer, Gunther’s son, and Arthur Goldberg, a longtime employee at the company, stepped in to lead the business. Although Doug, now CEO, and Arthur, executive vice president, have embraced…