Patent ID: 7580258

Claim:
A display apparatus, comprising: a casing, having a first opening and a second opening; a display module, disposed in the casing and having a display area and a non-display area, wherein the first opening exposes the display area, and the second opening is corresponding to the non-display area; a cooling device, disposed at the non-display area in the casing, wherein the cooling device comprises an air inlet corresponding to the second opening, and the cooling device is capable of producing an airflow; and a dust-proof device, comprising: a body, disposed at the non-display area in the casing, wherein the body comprises a plurality of first holes corresponding to the air inlet; a cover, disposed at the body, wherein the cover has a plurality of second holes, the second opening exposes the second holes, and each of the second holes overlaps at least one of the first holes; and a dust-proof element, disposed between the body and the cover, wherein the airflow flows through the second opening, the second holes, the dust-proof element, the first holes, and the air inlet to flow into an interior of the cooling device, wherein the cover and the body have a slide rail and a protrusion passing through the slide rail, so that the cover is slidably disposed at the body and is capable of rotating relative to the body.