Image display system

An image display system, comprising:

• an organic electroluminescent device, comprising:
• a substrate;
• a first electrode formed on the substrate;
• a first hole injection layer, a first a hole transport layer, a first emitting layer, a first spacer layer, a second emitting layer, a second spacer layer, a third emitting layer, a first electron transport layer, and a first electron injection layer sequentially formed on the first electrode, wherein the first emitting layer, the second emitting layer, and the third emitting layer are formed by the same material, and each emitting layer emits a first color, a second color, and a third color of light;
• and
• a second electrode formed on the first electron injection layer, wherein the second color of light emitted by each emitting layer generates a first standing wave within the organic electroluminescent device, and the third color of light emitted by each emitting layer generates a second standing wave within the organic electroluminescent device, such that the intensities of the second color of light and the third color of light are enhanced, and the second color of light and the third color of light are mixed with the first color of light to produce a white emission.