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US 2011/0234941 A1Published application
Light guides
OwnerJames Gourlayinventor
Life of this patent
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Abstract
This invention relates to a light guide plate and methods of manufacture. The light guide plate is suitable for use in a range of applications, particularly those which require backlighting for display units, for example, liquid crystal displays. The light guide plate comprises a combination of light guide layers and one or more scattering features.
Claims25
A light guide plate comprising:
- a first layer of light guiding material,
- a second layer of light guiding material which is mounted upon a surface of the first layer of light guiding material, and
- one or more light scattering features located at the interface between the first and second layers of light guiding material.
A method of producing a light guide plate comprising:
- (a) applying to a surface of a first layer of light guiding material one or more light scattering features;
- and
- (b) mounting a second layer of light guiding material on the surface of the first layer of light guiding material such that said one or more light scattering features are located at the interface between the first and second layers of light guiding material.
Dependencies are inferred from the claim text.