Abstract: A display device includes first pixel and second electrodes spaced apart from each other on a substrate, an inorganic insulating layer on the substrate and partially covering the first pixel electrode and the second pixel electrode, residual patterns disposed between the first or second pixel electrodes and the inorganic insulating layer, a bank structure on the inorganic insulating layer with first and second openings defined therethrough to overlap the first and second pixel electrodes, first and second light emitting layers on the first and second pixel electrodes, first and second common electrodes on the first and second light emitting layers, and first and second inorganic layers on the first and second common electrodes in the first and second openings. The bank structure includes first and second bank layers including different metal materials, and the second bank layer includes tips protruding to a center of the first or second opening.

Abstract: An optical proximity correction (OPC) whereby corner rounding may be effectively controlled, and a mask manufacturing method performed using the OPC method are provided. According to the OPC method, an inner edge is generated through decomposition of a layout, and a displacement (DISin_frag) of an inner fragment and a displacement (DISsel) of a selected fragment are calculated based on the inner edge to additionally displace a fragment, so as to manufacture a mask layout with minimized corner rounding without violating mask rule check (MRC).

Abstract: An optical proximity correction (OPC) whereby corner rounding may be effectively controlled, and a mask manufacturing method performed using the OPC method are provided. According to the OPC method, an inner edge is generated through decomposition of a layout, and a displacement (DISin_frag) of an inner fragment and a displacement (DISsel) of a selected fragment are calculated based on the inner edge to additionally displace a fragment, so as to manufacture a mask layout with minimized corner rounding without violating mask rule check (MRC).