| 摘要 |
A flat-panel area illumination system is described, comprising: a) a flat-panel lamp having a substrate and one or more non-pixellated light-emitting areas formed on the substrate emitting light in every direction from at least one light-emitting side of the lamp; and b) a light-directing optical film located on the at least one light-emitting side over the light-emitting area of the flat-panel lamp, wherein the light-directing optical film preferentially directs light away from a direction perpendicular to the surface of the light-emitting side of the flat-panel lamp. The flat-panel lamp system of the present invention provides light direction capability for a flat-panel OLED lamp while preserving a thin profile.
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