Pixel circuit and display device, and a method of manufacturing pixel circuit

An organic EL display device comprising a plurality of pixel circuits, one of the plurality of pixel circuits including:

• a semiconductor layer comprising a first node of a first transistor, and a second node of the first transistor, a first node of a second transistor, and a second node of the second transistor;
• a first metal layer comprising a first scanning line, a gate electrode of the first transistor, and a gate electrode of the second transistor;
• a second metal layer comprising a data signal line;
• a third metal layer comprising an anode electrode of a light emitting element;
• and
• a fourth metal layer comprising a cathode electrode of a light emitting element
• wherein the data signal line is connected to the first node of the first transistor, the second node of the first transistor is connected to a control terminal of the second transistor,
• wherein the second node of the second transistor is connected to the anode electrode of the light emitting element via a wiring,
• wherein the data signal line extends along a first direction,
• wherein the first scanning line extends along a second direction,
• wherein the data signal line crosses the first scanning line outside of a light emission region of the light emitting element,
• wherein the second metal layer includes aluminum.