| 摘要 |
<p>This disclosure provides systems, methods, and apparatuses for providing illumination in, for example, a display device. One or more light emitters (102) can emit light into a light guide plate (112) that is configured to distribute the light across an array of display elements. A substantially etendue-preserving reflector (104) between the light emitters and the light guide can at least partially collimate light propagating in a single plane of collimation. In some implementations, a lenticular film, or other optical elements, can be used to increase divergence of the light in a plane orthogonal to the plane of collimation. The light guide can include light extraction elements, which can be frusta-shaped features for turning light out of the light guide for illuminating the display. In some implementations, a flexible electrical interconnection circuit can be used to provide power and/or signals to the light emitters, thereby providing a flexible circuit illumination system.</p> |
