Optical disc, and production method and reproduction apparatus for optical disc

A method of producing an optical disc comprising the steps of:

• forming a display-pattern forming section on a stamper, a display pattern being to be formed in the display-pattern forming section, the display pattern being provided to an optical disc to be produced to have a data-layer substrate made of a transparent material and a data-layer reflection film formed on an upper side of the data-layer substrate and to have a display-layer substrate having a display pattern and a display-layer reflection film formed on a lower side of the display-layer substrate, the display pattern being visible from a lower side of the data-layer substrate through the data-layer reflection film;
• forming the display-layer substrate by applying injection molding to the stamper having the display-pattern forming section with an injected transparent material;
• forming the display-layer reflection film formed on the lower side of the display-layer substrate;
• forming the data-layer reflection film on the upper side of the data-layer substrate, wherein the data-layer reflection film is formed so that the data- and display-layer reflection films exhibit specific reflectivity to allow the display pattern to be visible from a lower side of the data-layer substrate through the data-layer reflection film;
• and
• forming an intermediate layer made of a transparent material between an upper side of a data layer having the data-layer substrate and the data-layer reflection film, and a lower side of a display layer having the display-layer substrate and the display-layer reflection film.

A reproduction apparatus for reproducing data from an optical disc comprising:

• a reproducing unit configured to reproduce data from an optical disc having:
• a data-layer substrate made of a transparent material;
• a data-layer reflection film formed on an upper side of the data-layer substrate;
• a display-layer substrate having a display pattern;
• and
• a display-layer reflection film formed on a lower side of the display-layer substrate,
• wherein the data- and display-layer reflection films exhibit specific reflectivity to allow the display pattern to be visible from a lower side of the data-layer substrate through the data-layer reflection film.