Patent ID: 8076704

Claim:
An organic light emitting device comprising: a thin film transistor substrate including a plurality of thin film transistors; an over-coating film having depressed portions, the depressed portions having at least two different slope angles; a plurality of first electrodes formed on the over-coating film; an organic light emitting member formed on the first electrodes; and a second electrode formed on the organic light emitting member, wherein the over-coating film is formed on the thin film transistors and includes the depressed portions on at least two pixels of different colors, and the slope angles of the depressed portions forming a curved surface of the over-coating film are respectively different from each other depending on the colors of the pixels, so that maximum depths of the depressed portions vary according to the colors of the corresponding pixels; wherein the slope angles of the depressed portions increase as wavelengths of the pixel colors decrease; wherein the first electrodes include surfaces formed according to the curved surface of the over-coating film; wherein the organic light emitting member includes a surface formed according to the surface of the first electrodes; and wherein the second electrode includes a surface formed according to the surface of the organic light emitting member.