1. A display device responsive to an image signal to produce a displayed image having first and second portions in respective first and second immediately adjacent image fields, comprising: a first light source responsive to a first input signal to emit a first beam of modulated light along a first optical path; a first scanning assembly positioned to receive the first beam of light and configured to scan the first beam of light into the first image field; a second light source responsive to a second input signal to emit a second beam of modulated light along a second optical path; a second scanning assembly different from the first scanning assembly, the second scanning assembly being positioned to receive the second beam of light and configured to scan the second beam of light into the second image field; and an electronic controller having a signal input that receives the image signal, the electronic controller being responsive to the image signal to produce the first and second input signals.