For example, as illustrated in FIG. 1A, at least one of the plurality of cover plate alignment marks 14 included in the display substrate 10 is located in the first frame region and at least another one of the plurality of cover plate alignment marks 14 is located in the second frame region, that is, both the first frame region and the second frame region are provided with cover plate alignment marks 14. For example, as illustrated in FIG. 1A, at least one of the plurality of cover plate alignment marks 14 is located in the first frame region and the orthographic projection of the at least one of the plurality of cover plate alignment marks 14 is located between the orthographic projection of dam glue 50 on the base substrate and the display region, while at least another one of the plurality of cover plate alignment marks 14 is located in the second frame region and the orthographic projection of the at least another one of the plurality of cover plate alignment marks 14 is located between the orthographic projection of dam glue 50 on the base substrate and the cutting region. For example, in other embodiments, only the first frame region is provided with at least one cover plate alignment mark 14 of which the orthographic projection is located between the orthographic projection of the dam glue 50 and the display region; or, only the second frame region is provided with at least one cover plate alignment mark 14 of which the orthographic projection is located between the orthographic projection of the dam glue 50 and the cutting region.
