Corning Incorporated
LOCALLY DIMMABLE LIGHT GUIDE PLATES AND DISPLAY DEVICES COMPRISING THE SAME

Abstract:

Disclosed herein are backlight units comprising a light guide assembly including (110) a light guide plate (105) and least one light valve layer (115), and at least one light source (125) optically coupled to the light guide plate (105), wherein regions of the light guide assembly (110) are configured to switch between active and inactive states, wherein an active region transmits at least about 90% of incident light and an inactive region transmits less than about 10% of incident light. Display devices comprising such backlight units are further disclosed as well as methods for displaying an image.