Patent ID: 8530291

Claim:
A method for manufacturing a display device having an active matrix substrate on which a plurality of switching elements are provided in a matrix and an opposite substrate that is placed facing said active matrix substrate through a display medium layer, the method comprising: preparing an insulating substrate for said active matrix substrate; forming a metal film on said insulating substrate; providing a photosensitive resin on said metal film; exposing said photosensitive resin by controlling an exposure amount applied to said photosensitive resin; forming a resist having an edge section having a tilted surface with a tilt angle of at least 20° but no more than 60° by developing said photosensitive resin; forming a metal wiring by etching said metal film using said resist as a mask, the metal wiring having an edge section having a tilted surface with a tilted angle of at least 20° but no more than 60°; forming an interlayer insulating film material on said insulating substrate on which said metal wiring has been formed; forming an interlayer insulating film on said metal wiring by exposing and developing said interlayer insulating film material using a photomask, the interlayer insulating film having an inclined surface section substantially reflecting the tilted surface of the edge section of the metal film; forming a pixel electrode material on said insulating substrate on which said interlayer insulating film has been formed; forming another resist by providing another photosensitive resin on said pixel electrode material and by exposing and developing the another photosensitive resin; and forming a pixel electrode that is electrically connected to said switching elements by etching said pixel electrode material using said another resist as a mask, wherein the pixel electrode is present adjacent to the inclined surface section of the interlayer insulating film, and is absent on the inclined surface section of the interlayer insulating film.