A light emitting device and a manufacturing method thereof and a display used
the
light emitting device, in which fine patterning for the light emitting device is
realized by a simple process and the light leakage is prevented and the efficiency
at extracting light is increased, are provided. The light emitting device provides
an organic electroluminescent (EL) device in which electrodes and a luminescent
layer are formed, a diffraction grating or a zone plate, and a filter. Light emitted
from the luminescent layer transmits through the diffraction grating or the zone
plate, which is formed with a designated grating pitch, or is reflected at the
diffraction grating or the zone plate. With this, the transmitting or reflecting
light is controlled to be in a designated angle region. And when the light is transmitted
through the filter, light having different color tone and chromaticity from those
of the light emitted from the luminescent layer is extracted.
