PIXEL STRUCTURE FOR OLED DISPLAY SCREEN AND METAL MASK THEREOF

摘要

A pixel structure for an OLED display screen comprises multiple rows of pixel unit groups. Each pixel unit group comprises a plurality of pixel units arranged orderly and repeatedly; each pixel unit group comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, wherein the same sub-pixels of the pixel units in two neighboring rows are staggered in an horizontal direction. During fabrication of a corresponding metal mask, the pixel structure increases the distance between the openings of the corresponding sub-pixels, thereby enhancing the strength of the metal mask, and pixel units in smaller sizes can be fabricated in the event that the process conditions are met, thereby improving the resolution of the organic light emitting display.