PURPOSE: To sensitize a fresh color on a photosensitive and pressure-sensitive sheet by moving the relative position of a panel and a photosensitive sheet only at a display position by a moving means in case of its exposure.

CONSTITUTION: The moving means M4 for relatively moving the position of a predetermined color display position with respect to a photosensitive sheet M2 is provided in each cell of a panel M1 at the time of its exposure by exposure means M3. Pixels of R1, R3, R5, R7 are initially turned ON to expose the positions (2.1), (2.4), (2.7), (2.10) of a photosensitive pressure-sensitive sheet, and a color liquid crystal panel is then moved in an X direction; the pixels of R2, R4, R6, R8 are moved in an X direction to expose the positions (2.2), (2.5), (2.8), (2.11) of the sheet, and the panel is further moved in a Y direction; and the pixels of R2, R4, R6, R8 are turned ON to expose the positions (2.3), (2.6), (2.9), (2.12) of the sheet. Thus, the pixels are turned ON, OFF upon movements of the panel in the X and Y directions to obtain an image of a resolution three times as high as before.