| 摘要 |
A portable radio device permits the user to use contents on the Internet with a sufficiently large display screen size without impairing the portability of its own. The portable radio device has a lid, a lower device portion, and an upper device portion. The lid is angularly movably mounted on the lower device portion by a joint, and can be folded over the lower device portion. The upper device portion is angularly connected to the lower device portion by a hinge, and can be folded over the lower device portion and the lid which has been folded over the lower device portion. The lid has a concave reflecting mirror disposed on the reverse side thereof. The lower device portion includes a projection display device disposed on a surface thereof for projecting an image onto the concave reflecting mirror when the lid is opened. Light rays of the displayed image are projected from the projection display device and reflected by the concave reflecting mirror and recognized as representing an enlarged image by the user.
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