An organic light emitting diode display, comprising: a substrate; a plurality of pixels disposed on the substrate, wherein the pixels display an image; a plurality of transmissive windows spaced apart from the pixels, wherein light is transmitted through the transmissive windows; and a light blocking member disposed between one of the pixels and one of the transmissive windows, wherein each pixel comprises: a transistor comprising a plurality of electrode members (125, 130, 155, 156, 76, 77) disposed in different layers on the substrate, wherein the light blocking member comprises a plurality of light blocking sub-members (30p, 30q, 30r, 30s) respectively disposed in the same layers as the plurality of electrode members (125, 130, 155, 156, 76, 77); wherein the transmissive window comprises a long barrier (21, 22) disposed adjacent to the one of the pixels and a short barrier (23, 24) connected to the long barrier (21, 22), and the light blocking member comprises a long barrier light blocking member disposed adjacent to the long barrier (21, 22) of the transmissive window; characterized in that the light blocking member further comprises a short barrier light blocking member disposed adjacent to the short barrier (23, 24) of the transmissive window, and the long barrier light blocking member and the short barrier light blocking member surround the transmissive window. a substrate; a plurality of pixels disposed on the substrate, wherein the pixels display an image; a plurality of transmissive windows spaced apart from the pixels, wherein light is transmitted through the transmissive windows; and a light blocking member disposed between one of the pixels and one of the transmissive windows, wherein each pixel comprises: a transistor comprising a plurality of electrode members (125, 130, 155, 156, 76, 77) disposed in different layers on the substrate, wherein the light blocking member comprises a plurality of light blocking sub-members (30p, 30q, 30r, 30s) respectively disposed in the same layers as the plurality of electrode members (125, 130, 155, 156, 76, 77); wherein the transmissive window comprises a long barrier (21, 22) disposed adjacent to the one of the pixels and a short barrier (23, 24) connected to the long barrier (21, 22), and the light blocking member comprises a long barrier light blocking member disposed adjacent to the long barrier (21, 22) of the transmissive window; a transistor comprising a plurality of electrode members (125, 130, 155, 156, 76, 77) disposed in different layers on the substrate, wherein the light blocking member comprises a plurality of light blocking sub-members (30p, 30q, 30r, 30s) respectively disposed in the same layers as the plurality of electrode members (125, 130, 155, 156, 76, 77); wherein the transmissive window comprises a long barrier (21, 22) disposed adjacent to the one of the pixels and a short barrier (23, 24) connected to the long barrier (21, 22), and the light blocking member comprises a long barrier light blocking member disposed adjacent to the long barrier (21, 22) of the transmissive window; characterized in that the light blocking member further comprises a short barrier light blocking member disposed adjacent to the short barrier (23, 24) of the transmissive window, and the long barrier light blocking member and the short barrier light blocking member surround the transmissive window.