REINFORCED OPTICAL FILMS
First Claim
1. An optical film, comprising:
- a first layer, comprising inorganic fibers embedded within a polymer matrix, light propagating through the first layer being subject to a bulk haze of less than 30%; and
a second layer attached to the first layer, the second layer comprising a polymer layer having a structured surface.
0 Assignments
0 Petitions
Accused Products
Abstract
Optical films having structured surfaces are used, inter alia, for managing the propagation of light within a display. As displays become larger, it becomes more important that the film be reinforced so as to maintain rigidity. An optical film of the invention has a first layer comprising inorganic fibers embedded within a polymer matrix. A second layer having a structured surface, for providing an optical function to light passing therethrough, is attached to the first layer. The film may have various beneficial optical properties, for example, light that propagates substantially perpendicularly through the first layer may be subject to no more than a certain level of haze or light incident on the film may be subject to a minimum value of brightness gain. Various methods of manufacturing the films are described.
-
Citations
38 Claims
-
1. An optical film, comprising:
-
a first layer, comprising inorganic fibers embedded within a polymer matrix, light propagating through the first layer being subject to a bulk haze of less than 30%; and a second layer attached to the first layer, the second layer comprising a polymer layer having a structured surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
-
-
28. A display system, comprising:
-
a display panel; a backlight; and a reinforced film positioned between the display panel and the backlight, the reinforced film comprising a first layer, comprising inorganic fibers embedded within a polymer matrix, light propagating through the first layer being subject to a bulk haze of less than 30%, and a second layer attached to the first layer, the second layer comprising a polymer layer having the structured surface. - View Dependent Claims (29, 30, 31, 32, 33, 34)
-
-
35. A method of manufacturing an optical film, comprising:
-
providing a first layer having a structured surface; providing a fiber reinforced layer comprising inorganic fibers embedded within a polymer matrix, light propagating through the fiber reinforced layer being subject to a bulk haze of less than 30%; and attaching the fiber reinforced layer to the first layer. - View Dependent Claims (36, 37, 38)
-
Specification