Abstract: There is provided a battery-driven electronic book reader for switchingly displaying each page of contents separated in predetermined pages on a cholesteric liquid crystal panel, wherein a remaining available battery level is detected (step S102), the number of pages to be switchedly displayed on the cholesteric liquid crystal panel is calculated based on the detected remaining available battery level (step S104), and the calculated number of pages is displayed on the cholesteric liquid crystal panel (step 105).

Abstract: An image display device according to the present invention includes an electrophoretic display member 2 that can display a predetermined image, a liquid crystal display member 3 placed in front of the electrophoretic display member 2 and which can display the predetermined image at a higher speed than the electrophoretic display member 2, and a control device that causes the electrophoretic display member 2 and the liquid crystal display member 3 to display the image corresponding to the same image data at the same position as viewed from front of the device. The control device makes the liquid crystal display member 3 transparent after the predetermined image has been displayed in the electrophoretic display member 2.

Abstract: The invention makes effective use of features of rewritable paper when selling. A packaging system prints prescribed contents on a print face of rewritable paper in the leading portion in the form of sales, and then packages it. When a purchaser uses the rewritable paper in practice, he or she can print target information without any hindrance via rewriting which is a feature of the rewritable paper. It is therefore not necessary to present information that a distributor wants to present to a purchaser upon selling the rewritable paper by printing such information on a separate sheet or on the wrapping. This permits resource saving and enables a new sales form to be provided by effective use of the features of the rewritable paper.

Abstract: The present invention provides an input system for a portable terminal which is suitable for easing input operations on multiple applications installed on a portable terminal, without specializing the applications.