Display panel and method of manufacturing the same

A display panel comprising:

• a base layer comprising a first pixel area and a second pixel area adjacent to the first pixel area;
• a pixel definition layer disposed on the base layer and including a pixel opening defined therethrough to correspond to the first pixel area and the second pixel area, respectively;
• a first electrode of which at least a portion is disposed in the pixel opening;
• an organic layer disposed on the first electrode and the pixel definition layer and comprising a light emitting layer;
• and
• a second electrode disposed on the organic layer,
• wherein the pixel definition layer comprises:
• a first slant portion comprising a first slant surface inclined at a first angle with respect to an upper surface of the base layer;
• and
• a second slant portion spaced apart from the first slant portion and comprising a second slant surface inclined at a second angle with respect to the upper surface of the base layer, wherein the first angle is greater than the second angle, the organic layer comprises an organic first slant portion disposed on the first slant surface and an organic second slant portion disposed on the second slant surface, the second electrode comprises an electrode first slant portion disposed on the organic first slant portion and an electrode second slant portion disposed on the organic second slant portion, and the organic first slant portion has a thickness smaller than a thickness of the organic second slant portion.

A method of manufacturing a display panel, comprising:

• preparing a base layer;
• forming a first electrode on the base layer;
• providing a negative photoresist that covers the first electrode to form a preliminary pixel definition layer;
• providing a mask comprising a first portion in which a first exposure non-transmissive portion, a first exposure transmissive portion, and a first exposure semi-transmissive portion are arranged in one direction and a second portion in which a second exposure transmissive portion, a second exposure semi-transmissive portion, and a second exposure non-transmissive portion are arranged in the one direction on the preliminary pixel definition layer;
• exposing the preliminary pixel definition layer to a light through the mask;
• and
• removing portions of the preliminary pixel definition layer except portions cured by the exposure process to form the pixel definition layer, wherein the pixel definition layer comprises a first slant portion formed corresponding to the first exposure non-transmissive portion of the mask, a first convex portion formed corresponding to the first exposure transmissive portion of the mask, a first flat portion formed corresponding to the first exposure semi-transmissive portion of the mask, a spacer formed corresponding to the second exposure transmissive portion of the mask, and a second slant portion formed corresponding to the second exposure semi-transmissive portion of the mask, the first slant portion comprises a first slant surface inclined at a first angle with respect to an upper surface of the base layer, the second slant portion is spaced apart from the first slant portion and comprises a second slant surface inclined at a second angle with respect to the upper surface of the base layer, the first convex portion is disposed between the first slant portion and the second slant portion and disposed adjacent to the first slant portion, the first flat portion is disposed between the first slant portion and the second slant portion and disposed adjacent to the second slant portion, and the first angle is greater than the second angle.