A door (1) includes a tabular main body (2), a liquid crystal device (4) which is disposed in an aperture portion formed in the main body (2), a handheld portion (3A) which is attached to the main body (2), and a touch sensor (3) which is attached to the handheld portion (3A). Because the touch sensor (3) is attached to the handheld portion (3A), when a person's hand touches the handheld portion (3A), the touch sensor (3) senses the person's hand. The liquid crystal device (4) is capable of varying between an invisible state and a visible state reversibly, and is made into a visible state in the case where the touch sensor (3) senses a person's hand.