A reimageable recording medium includes a substrate, a display layer, and
a protective layer. The protective layer comprises a microencapsulated
diarylethene material that is capable of switching between a UV absorbing
and UV transparent state. During an imaging process, the protective layer
is switched from a UV absorbing state to a UV transparent state to allow
UV light of a sufficient wavelength to convert a photochromic material of
the display layer to a colored state to form an image. The protective
material is then switched back to a UV absorbing state to prevent the UV
light component from a reading source to convert unimaged areas of the
display layer to change color, which would reduce the contrast and
resolution of the imaged medium.