Organic light emitting device and manufacturing method thereof

A method for manufacturing an organic light emitting device, comprising:

• forming lower formations including thin film transistors on a substrate;
• forming an over-coating film having a curved surface on the lower formations;
• forming first electrodes according to the curved surface on the over-coating film;
• forming an organic light emitting member according to the curved surface on the first electrodes;
• and
• forming a second electrode according to the curved surface on the organic light emitting member,
• wherein the over-coating film comprises depressed portions having at least two different angles,
• wherein the over-coating film includes the depressed portions on a least two pixels of different colors, and the slope angles of the depressed portions forming a curved surface 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.

An organic light emitting device comprising:

• a substrate;
• a plurality of first electrodes formed on the substrate;
• a first organic light emitting member formed in a first group among the first electrodes, and having a first depressed portion;
• a second organic light emitting member formed in a second group that is different from the first group among the first electrodes, and having a second depressed portion;
• and
• a second electrode formed on the first organic light emitting member and the second organic light emitting member,
• wherein a wavelength of a color of the first organic light emitting member is smaller than a wavelength of a color of the second organic light emitting member;
• and
• wherein a slope angle of the first depressed portion is larger than a slope angle of the second depressed portion.