Display apparatus, rotating position detector thereof and portable computer system having the same

摘要

A display apparatus correctly detecting a rotated position of a display part and automatically displaying a rotated picture according to rotation of the display part. The display apparatus has a display part displaying a picture based on a video signal thereon; a video signal processing part transmitting the video signal to the display part; a rotating position detector including a mass body, a housing having a plurality of pockets in which the mass body is selectively retained according to a rotated position of the display part, and a plurality of contact sensors respectively placed in the pockets and generating a contact signal upon contact with the mass body; and a controller controlling the video signal processing part so as to display a rotated picture according to the rotated position of the display part based upon the contact signal from the rotating position detector.