DISPLAY PANEL MOTHER BOARD, DISPLAY PANEL AND METHOD FOR MANUFACTURING SAME AND DISPLAY DEVICE

摘要

A display panel mother board, a display panel and a method for manufacturing the display panel, and a display device. The display panel mother board comprises an array substrate (8) provided with a metal lead layer (3) and a protective layer (5), and an opposite substrate (9) provided with a black matrix layer (4); the metal lead layer (3) and the black matrix layer (4) are respectively provided with alignment scales (20', 20) in portions thereof corresponding to frame sealant areas; protrusions (51) are formed at portions of the protective layer (5) corresponding to the alignment scales (20') in the metal lead layer (3), and/or the opposite substrate (9) further comprises a spacer layer (7), and protrusions (71) are formed at portions of the spacer layer (7) corresponding to the alignment scales (20) in the black matrix layer (4). The degree of light shading of frame sealants (2) for the alignment scales (20, 20') in the black matrix layer (4) and the metal lead layer (3) is reduced.