PORTLAND, Ore.--(BUSINESS WIRE)--Planar Systems, Inc. (NASDAQ: PLNR), a global leader in display and digital signage technology, today announced a new iOS app that can manage multiple sources on Planar® UltraRes™ Series 4K LCD displays using an iPhone® or iPad®. The new Planar® UltraRes™ App for iOS gives users free streamlined access to robust UltraRes™ MediaPlex™ functionality on its Planar UltraRes Series line of commercial Ultra HD displays. With the tap of a finger, users can switch source