| 摘要 |
<p>In various embodiments of the invention, an interferometric display deviceis provided having an external film with a plurality of structures that reducethe field-of-view of the display. These structures may comprise, for example,baffles or non-imaging optical elements such as compound parabolic collectors.The baffles may comprise a plurality of vertically aligned surfaces arranged,e.g., in a grid. In certain preferred embodiments these baffles are opaque orreflective. These vertical surfaces, therefore, can substantially block lightfrom exiting the interferometric display device in a substantially non-perpendiculardirection. These vertical surfaces may, however, permit light directed in asubstantially vertical direction t exit the display. The non-imaging opticalelements, e.g., compound parabolic collectors, redirect light from large incidentangles into more normal angles towards the display. As a result, the light reflectedby thedisplay to the user is also at a more normal angle.</p> |
