PROBLEM TO BE SOLVED: To provide a visible angle-limited display device which effectively limits the visible angle without spoiling visibility for a user himself or herself even when a display screen is rotated so as to become vertically or horizontally long, and to provide a visible angle-limited film structure, and a portable device.;SOLUTION: The visible angle-limited display device having a rectangular display screen of which the one side is longer than the other side, includes a transparent film 101 provided on the display screen, two visible angle-limited films 103a and 103b which are provided on the transparent film and have single visible directions, and coupling means 104a and 104b which couple shafts 102a and 102b provided at a pair of corner parts of the transparent film and the visible angle-limited films 103a and 103b so that respective visible directions 105a and 105b can be rotated with the shafts as the centers independently of each other.;COPYRIGHT: (C)2011,JPO&INPIT
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