Optical diffuser
AssigneePure Depth Limited
InventorsGareth Paul Bell, Robert Craig
Life of this patent
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Abstract
An improved optical diffuser for use in a multi-component display (MCD), and also to a method of manufacturing the same, is disclosed. Embodiments provide an optical diffuser film which may be manufactured with fewer manual operations, at a lower cost, and in larger volume than conventional optical diffusers. The optical diffuser film may include a flexible polymer substrate coupled to an optical diffuser material with a plurality of features for diffusing light. The optical diffuser film may be stored, transported, or otherwise handled more easily and with less damage than conventional optical diffusers. Additionally, the optical diffuser film may be coupled to a rigid substrate to reduce distortion of the optical diffuser, thereby providing improved optical performance.
Claims38
A method of manufacturing an optical diffuser, said method comprising:
- adhering an optical diffuser film to a rigid substrate, wherein said rigid substrate is operable to provide structural support for said optical diffuser film, and wherein said optical diffuser film comprises:
- a flexible polymer substrate;
- and
- an optical diffuser material comprising a first surface disposed on said flexible polymer substrate, wherein said optical diffuser material further comprises a second surface comprising a plurality of features operable to diffuse light passed through said optical diffuser material, and wherein said first surface of said optical diffuser material is disposed on a third surface of said flexible polymer substrate.
A method of manufacturing an optical diffuser film, said method comprising:
- disposing a first surface of an optical diffuser material on a flexible polymer substrate;
- and
- creating a plurality of features on a second surface of said optical diffuser material, wherein said plurality of features are operable to diffuse light passed through said optical diffuser material, and wherein said first surface of said optical diffuser material is disposed on a third surface of said flexible polymer substrate.
A method of manufacturing a display device, said method comprising:
- positioning a plurality of display screens in an overlapping arrangement;
- and
- positioning an optical diffuser in a position operable to enable said optical diffuser to diffuse light passing through at least one display screen of said plurality of display screens, and wherein said optical diffuser comprises:
- a flexible polymer substrate;
- and
- an optical diffuser material comprising a first surface disposed on said flexible polymer substrate, wherein said optical diffuser material further comprises a second surface comprising a plurality of features operable to diffuse said light, and wherein said first surface of said optical diffuser material is disposed on a third surface of said flexible polymer substrate.
Dependencies are inferred from the claim text.