Patent ID: 7969382

Claim:
A portable multi-display device comprising: a first housing having a first display; a second housing having a second display; pixel electrodes equipped on at least one substrate that comprises the first and second displays; a joint portion of the at least one substrate in which the first and second displays are adjacent each other when the first and second housings are spread or when the first and second housings are coupled from the separated state together; protecting means for covering a side of the first and second displays in the joint portion; a protecting cover for covering both the protecting means and side of the first and second displays in the joint portion; and central processing units for controlling the display operation of the first and second displays, wherein, the pixel electrodes are closer to the joint portion of the substrate than an opposite side of the joint portion of the substrate, the protecting means is integrated with or separated from sidewall of the first and second housings and has a thickness of less than about 1 mm, the protecting means exists between the first and second displays when the first and second housings are coupled together and spread so that the first and second displays are adjacent to each other, in the joint portion, to allow a distance between a display border and an outer border of the first and second housings to be shorter when the first and second housings are coupled together, rather than when the first and second housings are separated from each other, the protecting cover does not exist between the displays when the first and second housings are coupled together, a height of the protecting cover is higher than that of a surface of the first and second displays when the first and second housings are separated from each other and the protecting cover covers the side of the first and second displays and the protecting means in the joint portion, and a central process unit in the first housing is configured to control the second display of second housing when the second housing is coupled to the first housing.