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.