Bernard Masson, former president of the Consumer Printer Div. of Lexmark International, has been named president of Eastman Kodak Co.'s expanded Display Group. Masson will be responsible for all of Kodak's display businesses, including the Kodak Display Products business unit, the SK Display joint venture, the company's extensions into larger flat-panel displays and emerging new display businesses from Kodak's research labs.   . . .   White Electronic Designs Corp. announced it has received a follow-on production display order totaling $3.6 million for two models of optically enhanced TFT LCD displays for commercial marine navigation systems to a provider of navigation, communications and information devices. The company said it expects to ship these orders over the next six months.