Abstract: The disclosure provides a full-color light emitting device and a display module. A light emitting layer, a refractive layer, a spacer layer and a light processing layer are included. The refractive layer is disposed above the light emitting layer, the spacer layer is disposed above the refractive layer, and the light processing layer is disposed above the spacer layer. The light emitting layer includes a first light emitting part, a second light emitting part and a third light emitting part. The light processing layer includes a first light processing part, a second light processing part, and a third light processing part, and a baffle wall is disposed between any two adjacent light processing parts in the first light processing part, the second light processing part and the third light processing part. A light refractive index of the refractive layer is greater than a light refractive index of the spacer layer.