In an embodiment, for example, the third adhesive layer 1030 may have a layer thickness 1030t of about 10 μm or more and about 25 μm or less. When the layer thickness 1030t of the third adhesive layer 1030 is about 10 μm, the surface resistance of the fourth surface L3 of the third adhesive layer 1030 may be about 109Ω/□ or more and about 1010Ω/□ or less, and when the layer thickness 1030t of the third adhesive layer 1030 is about 25 μm, the surface resistance of the fourth surface L3 of the third adhesive layer 1030 may be about 1010Ω/□ or more and about 1011Ω/□ or less. Thus, as the surface resistance of the first anti-static layer 402 is equal to or less than a predetermined value, the first anti-static layer 402 may have a sufficient anti-static function although the third adhesive layer 1030 is attached to the first anti-static layer 402.
When an anti-static agent is added to the third adhesive layer 1030, the folding characteristic of the electronic device 1000 (refer to