Patent ID: 8569947

Claim:
An organic light emitting diode (OLED) display comprising a pixel having a plurality of sub-pixels and a pixel defining layer, wherein the plurality of sub-pixels comprises: a first sub-pixel comprising a first anode and a first organic emission layer; a second sub-pixel comprising a second anode and a second organic emission layer; and a third sub-pixel comprising a third anode and a third organic emission layer, wherein the first anode, the second anode, and the third anode satisfy the following condition: W ⁢ ⁢ 1 + W ⁢ ⁢ 2 < 2 ⁢ W ⁢ ⁢ 3 < 2 3 ⁢ P wherein W 1 , W 2 , and W 3 respectively denote a width of the first anode, a width of the second anode, and a width of the third anode measured along a direction traversing the first sub-pixel, the second sub-pixel, and the third sub-pixel, and wherein P denotes a width of the pixel measured along the direction traversing the first sub-pixel, the second sub-pixel, and the third sub-pixel; and wherein the pixel defining layer is on edge portions of the first, second, and third anodes and has a first opening exposing a portion of the first anode, a second opening exposing a portion of the second anode, and a third opening exposing a portion of the third anode, and wherein the first anode, the second anode, the third anode, and the pixel defining layer satisfy the following condition: w 1 +w 2+12 μm< W 1 +W 2 wherein w 1 and w 2 respectively denote a width of the first opening and a width of the second opening measured along the direction traversing the first, second, and third sub-pixels; and wherein the first, second, and third anodes are reflective electrodes.