The invention relates to novel compounds which are especially suitable for use as writing monomers in holographic media. The invention further provides a photopolymer and a holographic medium comprising the inventive compounds, and an optical display, a security document and a holographic optical element comprising an inventive holographic medium.

Provided is a light guide plate for image display, whereby clear images can be displayed even when a resin base is used, wherein the light guide plate for image display (1004) has a first resin base (1001) and a hologram layer (1002), and wherein the first resin base (1001) has an MC value of 0.120 or less obtained by evaluation using shadow contrast.

The invention relates to novel compounds which are especially suitable for use as writing monomers in holographic media. The invention further provides a photopolymer and a holographic medium comprising the inventive compounds, and an optical display, a security document and a holographic optical element comprising an inventive holographic medium.