Abstract: The present invention relates to a full-color organic electroluminescent display device and a method of manufacturing the same. The device comprises at least one first organic light emitting unit for generating a first color light at a vertical extension place of a first photo-resist of a color filter, and transversely provides at least one fourth organic light emitting unit at vertical extension place of a second photo-resist and third photo-resist of the color filter. A fourth color light is filtered to generate a second color light and a third color light when penetrating the second photo-resist and third photo-resist respectively, thereby mixing and collocating the first color light, second color light, and third color light, such that a full-color light emitting or display function is formed.