| 摘要 |
<p>An organic electroluminescent device of a top emission type includes a lower substrate, an organic electroluminescent diode provided over the lower substrate and emitting light by an applied driving current, and an encapsulation substrate provided over the organic electroluminescent diode and encapsulating the organic electroluminescent diode, wherein one or more micro lenses are provided under the encapsulation substrate for each sub-pixel so as to change an orientation angle of light emitted upward from the organic electroluminescent diode. The micro lens has a convex or concave shape facing the organic electroluminescent diode. The micro lens has a spheric or aspheric lens surface. The micro lens has a rectangular outer circumference corresponding to the sub-pixel. The plurality of the micro lenses is provided for each sub-pixel along a long-axis of the sub-pixel. The micro lens is a refraction lens including a Fresnel lens or a diffraction lens.</p> |
