Unless otherwise defined, all the technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. The terms “first,” “second,” etc., which are used in the description and the claims of the present disclosure, are not intended to indicate any sequence, amount or importance, but distinguish various components. Also, the terms “comprise,” “comprising,” “comprise,” “comprising,” etc., are intended to specify that the elements or the objects stated before these terms encompass the elements or the objects and equivalents thereof listed after these terms, but do not preclude the other elements or objects.

The base substrate of an organic light emitting diode display panel includes a multi-layer structure. For example, the multi-layer structure can include an organic layer, an amorphous silicon layer and an inorganic layer which are sequentially stacked. The camera is located at a side opposite to a light emitting side of the organic light emitting diode display panel, that is, the organic light emitting diode display panel includes an organic light emitting element, and the camera is located at one side of the base substrate away from the organic light emitting element. Therefore, the ambient light passes through the base substrate and then enters the camera arranged in the mobile phone.