Back to results
US 2016/0055877 A1Published application
Blu-ray disc from recycled disc manufacturing materials and a method of manufacturing the same
AssigneeThomson Licensing
InventorJohn Matthew TOWN
Life of this patent
Estimating the term…
Abstract
A Blu-ray ray optical disc comprises a base substrate of recycled polycarbonate molded without a data layer on a first surface. The disc further includes a first transmission stack having (a) a data region layer having a first surface adjoining the first surface of the base substrate and a second, opposite surface embossed with data, and (b) a layer of metallization overlying the second surface of the data layer. Lastly, a protective layer overlies the region of metallization of the first transmission stack.
Claims13
A Blu-ray optical disc, comprising:
- a base substrate of low grade polycarbonate molded with a dummy layer on a first surface;
- a first transmission stack including,
- a data region having a first surface adjoining the first surface of the base substrate and a second, opposite surface embossed with data;
- a layer of metallization overlying the second surface of the data region;
- and
- a clear cover layer and protective layer overlying the region of metallization of the first transmission stack.
3 more elements
A method of manufacturing a Blu-ray disc, comprising the steps of:
- molding a base substrate of recycled polycarbonate;
- embossing a first surface of the base substrate with a dummy stamper having no data;
- forming a first transmission stack onto the first surface of the base substrate, the first transmission stack including,
- a data region having a first surface adjoining the first surface of the base substrate and a second, opposite surface embossed with data;
- a layer of metallization overlying the second surface of the data region;
- and
- applying a protective layer to overly the region of metallization of the first transmission stack.
4 more elements
Dependencies are inferred from the claim text.