Patent ID: 7999458

Claim:
An organic electro luminescence device comprising: first and second substrates arranged spaced apart from each other by a predetermined distance, the first and second substrates facing each other, sub-pixels being defined in the first and second substrates; an array element including a switch formed on the first substrate; a first electrode formed on an inner surface of the second substrate; a buffer formed on an outer region to partition the sub-pixels, the buffer formed on the first electrode; a first electrode separator formed on the buffer, and a second electrode separator formed in a region including a stepped portion of the buffer; an organic electro luminescent layer formed within a region partitioned by the second electrode separator; and a second electrode formed on the second substrate where the organic electro luminescent layer is formed, wherein the first electrode separator is formed in an inverse tapered shape and the second electrode separator is formed in a round tapered shape, wherein the sides of the second electrode separator are hydrophobic, wherein a bottom surface of the second electrode separator is contacted with a top surface of the buffer only, wherein the second electrode is formed in each sub-pixel only wherein a cross-sectional shape of the second electrode separator has a portion of an ellipse and the first and second electrode separators have same height.