In a method for displaying an image: a polarization inversion pattern is produced
in a ferroelectric member in accordance with image information so as to produce
a surface charge pattern corresponding to the polarization inversion pattern; and
an image contrast is produced in a contrast production member by the influence
of the surface charge pattern, where the contrast production member is joined to
the ferroelectric member. The polarization inversion pattern may be produced by
heating the ferroelectric member so as to produce a heat distribution corresponding
to the image information in the ferroelectric member. Further, the ferroelectric
member may be heated by applying infrared light carrying the image information
to the ferroelectric member.