Mask for manufacturing a display substrate capable of improving image quality

摘要

A mask for forming a display substrate capable of improving color reproducibility by avoiding color spots and color shifts is presented. The mask includes a first sub-mask, a second sub-mask, a first overlapping portion and a second overlapping portion. The first sub-mask includes color reticles to form color pixels in a first active region of a display substrate. The second sub-mask includes color reticles to form color pixels in a second active region of the display substrate. The first overlapping portion is on a portion of the first sub-mask that overlaps the second sub-mask. The color reticles in the first overlapping portion are arranged at a different density from the rest of the first sub-mask. The second overlapping portion is on a portion of the second sub-mask that overlaps the first sub-mask. The color reticles in the second overlapping portion are arranged at a substantially same density as the first overlapping portion. Therefore, image display quality is improved.