The organic electroluminescent display device has an organic electroluminescent display part having pixels containing round subpixels and annular subpixels which show color emission different from the round subpixels and are arranged in the outer periphery of the round subpixels, and the hemispherical lens arranged on the pixel so that the center axis concords nearly with the center of the round subpixel, and the diameter of the outermost periphery of the annular subpixel is 60% or less against the lens diameter of the hemispherical lens. 円形の副画素と該円形の副画素と異なる発色を示し該円形の副画素の外周に配される円環状の副画素とを含む画素を有する有機電界発光表示部と、前記円形の副画素の略中心に中心軸が一致するように前記画素上に配される半球状レンズとを有し、前記円環状の副画素の最外周の直径が、前記半球状レンズのレンズ直径に対して60%以下であることを特徴とする。 - 特許庁