Protective cover assembly and protected electronic device

A protected electronic device, comprising:

• a target electronic device including a main body and a display part having a display screen, wherein a gap exists between the display part and the main body and surrounds the display part;
• and
• a protective cover assembly including:
• a ring-shaped silicone base, having an inner surface and an outer surface opposite to the inner surface;
• a first continuous ring-shaped double-sided adhesive layer, attached onto the inner surface of the ring-shaped silicone base;
• a screen protective film;
• and
• a second continuous ring-shaped double-sided adhesive layer, attached onto the screen protective film;
• wherein the screen protective film is attached onto the display part by the second continuous ring-shaped double-sided adhesive layer to cover the display screen;
• wherein the ring-shaped silicone base comprises a central opening region and a ring-shaped peripheral region surrounding the central opening region, and the ring-shaped peripheral region has the first continuous ring-shaped double-sided adhesive layer located therein;
• wherein the ring-shaped silicone base is attached onto both the main body and the screen protective film by the first continuous ring-shaped double-sided adhesive layer and thereby the ring-shaped silicone base, the first continuous ring-shaped double-sided adhesive layer, the screen protective film and the second continuous ring-shaped double-sided adhesive layer are sequentially stacked on the display part in that order, outer edges of the screen protective film as well as the gap are covered by the ring-shaped silicone base while the screen protective film is exposed in the central opening region of the ring-shaped silicone base, the outer edges of the screen protective film are spaced from and surrounded by the gap, outer edges of the ring-shaped silicone base and the outer edges of the screen protective film are respectively located at two opposite sides of the gap, and inner edges of the ring-shaped silicone base and the outer edges of the ring-shaped silicone base are respectively located at the two opposite sides of the gap.