An image display device and image display method. The image display device includes: a plurality of display screens spliced together, a corresponding gravity sensor integrated in each display screen, a logic circuit electrically connected with each display screen and each gravity sensor respectively, and a memory electrically connected with the logic circuit. The gravity sensor determines a placing direction of a corresponding display screen. The logic circuit automatically adjusts an access sequence of the image information in the memory according to the placing directions of the display screens determined by the gravity sensors, and outputs the accessed image information to the corresponding display screens, so that the image display device can normally display images when the display screens are placed right way up and/or placed up side down.