Pixel arrangement structure for organic light emitting diode display

A pixel arrangement structure of an organic light emitting diode (OLED) display, comprising:

• a plurality of individually addressable pixels for displaying images, the individually addressable pixels being minimum addressable units of the OLED display and comprising:
• a first pixel having a center coinciding with a center of a virtual square;
• another first pixel having a center coinciding with a center of another virtual square, the virtual squares sharing a common side having endpoints at a common first vertex and a common second vertex of the virtual squares, with neighboring vertices in each of the virtual squares corresponding to pixels configured to emit different color light;
• a second pixel separated from the first pixels and having a center at the first vertex;
• an other first pixel on a line defined by the center of the virtual square and the first vertex, the first pixel, the second pixel, and the other first pixel being consecutive pixels on the line;
• and
• a third pixel separated from the first pixels and the second pixel, and having a center at the second vertex,
• wherein a shortest distance between the first pixel and the second pixel as well as a shortest distance between the first pixel and the third pixel is a same first length,
• wherein a shortest distance between the first pixels is a second length that is longer than the first length and a shortest distance between each of the second pixels and the third pixels,
• wherein the second pixel and the third pixel have polygonal shapes, and
• wherein the second pixel has a larger area than that of the third pixel.