Method of fabricating pixel structure

A method of fabricating a pixel structure for use in an electroluminescent panel, comprising:

• providing a substrate;
• providing a first shadow mask having a plurality of first openings patterned in an array of T shapes;
• evaporating a plurality of first subpixel units through the first shadow mask, each of the plurality of first subpixel units corresponding to one of the plurality of first openings and comprising three first subpixels in a delta formation;
• providing a second shadow mask having a plurality of second openings patterned in an array of T shapes;
• evaporating a plurality of second subpixel units through the second shadow mask, each of the plurality of second subpixel units corresponding to one of the plurality of second openings and without overlapping the plurality of first subpixel units, and each of the plurality of second subpixel units comprising three second subpixels in a delta formation;
• providing a third shadow mask having a plurality of third openings patterned in an array of T shapes;
• and
• evaporating a plurality of third subpixel units through the third shadow mask, each of the plurality of third subpixel units corresponding to one of the plurality of third openings and without overlapping the plurality of first subpixel units and the plurality of second subpixel units, and each of the plurality of third subpixel units comprising three third subpixels in a delta formation;
• wherein one first subpixel of the first subpixel unit, one second subpixel of the second subpixel unit adjacent to the first subpixel unit, and one third subpixel of the third subpixel unit adjacent to the first subpixel unit form a display pixel unit.