Patent ID: 7986085
Filing Date: 2011-07-26
Classification: H01L

Abstract:
1. A light emitting apparatus which is provided with a plurality of light emitting devices for emitting a plurality of predetermined different colors including red, green and blue, the plurality of light emitting devices having a plurality of light emitting layers consisting of predetermined different light emitting materials corresponding to the respective colors, wherein a luminous brightness of the light emitting material for the red color is the lowest among luminous brightnesses of the light emitting materials for the other colors, and the luminous brightness of the light emitting material for the green color is substantially equal to that of the light emitting material for the blue color, each of the plurality of light emitting devices comprising: a light emitting layer; and a carrier transport layer which is provided in contact with the light emitting layer through an interface therebetween; wherein the light emitting apparatus includes light emitting devices for the red color, wherein the interface of each of the light emitting devices for the red color is formed into a roughened surface to increase the luminous brightness of each of the light emitting devices for the red color and the interface of each of the light emitting devices for the other colors is formed into a smooth surface so that the luminous brightness of the light emitting devices for the respective colors becomes substantially equal to each other when a substantially same voltage is applied thereto.