Display device with touch sensor and method of manufacturing display device with touch sensor

A method for manufacturing a display device with a touch sensor, the method comprising steps of:

• preparing a substrate which has a first terminal disposed on an upper surface side of the substrate;
• forming a light emitting element which is on the upper surface side of the substrate;
• forming a sealing film which includes a first inorganic insulating film covering the light emitting element and the first terminal;
• forming a plurality of first touch electrodes which are arranged two dimensionally over the sealing film;
• forming a plurality of second touch electrodes which are arranged two dimensionally over the sealing film;
• forming a second connection line which connects two of the second touch electrodes that are adjacent to each other in a second direction which intersects a first direction;
• forming an interlayer insulating film which covers the first touch electrodes, the second touch electrodes, the second connection line, and the first terminal;
• forming a first connection line connecting two of the first touch electrodes that are adjacent to each other in the first direction over the interlayer insulating film, and intersecting the second connection line in a plan view;
• exposing at least a part of the first terminal, and forming an end portion which is continuous to the first inorganic insulating film and the interlayer insulating film by etching the first inorganic insulating film and the interlayer insulating film on the first terminal;
• and
• forming a leader wiring which is disposed over an end portion of the first inorganic insulating film and an end portion of the interlayer insulating film and connects the first touch electrode or the second touch electrode to the first terminal.