Patent ID: 7608991

Claim:
A light emitting device comprising: a plurality of luminous elements emitting different colors, respectively, each element including a first electrode, a second electrode transmitting light, and a luminous layer disposed between an upper surface of the first electrode and a lower surface of the second electrode; a protecting layer covering the plurality of luminous elements, placed on an upper surface of the second electrode; and a control layer placed on the upper surface of the second electrode of one luminous element or more in the plurality of luminous elements, wherein when an interval from an upper surface of an uppermost layer among layers placed on an upper surface of the second electrode to the upper surface of the second electrode is defined as a first interval, an interval from a lower surface of the second electrode to the upper surface of the uppermost layer is defined as a second interval, and an interval from the upper surface of the first electrode to the upper surface of the uppermost layer is defined as a third interval, the first through the third intervals include a region outside of the luminous element, and optical distances of the respective intervals are set such that both a traveling wave of light and a reflected wave of light traveling within at least the first interval in the first through third intervals enhance intensity of light in each of the plurality of luminous elements.