It should be noted that multiple components being disposed in the same layer and made of the same material refers to that the multiple components are formed by the same thin film in the same patterning process; in addition, the multiple components may be located on the same layer side by side, or there is a height difference between the multiple components (that is, the distances from the multiple components to the base substrate 11 are different), or at least one of the multiple components has a convex portion or a recessed portion.
In at least one embodiment of the present disclosure, for example, the width of the second frame region is larger than the width of the first frame region, that is, the size of the second frame region along the first direction X is larger than the size of the first frame region along the first direction X, which makes the distribution of electrode layer extending portion 17 in the second frame region sparser than that in the first frame region, so the cover plate alignment marks 14 in the second frame region can be located in a flat region outside the region where the electrode layer extending portion(s) 17 is located. For example, as illustrated in