STRUCTURED ORIENTED FILMS FOR USE IN DISPLAYS
First Claim
Patent Images
1. An article for use in a display with a backlight, comprising as arranged in any order from the backlight toward a viewer:
- a reflective polarizer; and
a birefringent brightness enhancement film having a birefringent structured surface.
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Accused Products
Abstract
Films having a structured surface with an engineered feature, such as prism grooves, to be used in displays having a backlight. The films can be arranged in a stack having one or more of the following: birefringent brightness enhancement films, non-birefringent brightness enhancement films, polarizers, diffusers, birefringent turning films, and non-birefringent turning films. Those films can be arranged in any order from the backlight to a viewer.
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Citations
15 Claims
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1. An article for use in a display with a backlight, comprising as arranged in any order from the backlight toward a viewer:
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a reflective polarizer; and a birefringent brightness enhancement film having a birefringent structured surface. - View Dependent Claims (2, 3, 4)
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5. An article for use in a display with a backlight, comprising as arranged in the following order from the backlight toward a viewer:
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one or more birefringent diffusers each having a birefringent structured surface; and a reflective polarizer. - View Dependent Claims (6, 7, 8, 9)
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10. An article for use in a display with a backlight, comprising as arranged in the following order from the backlight toward a viewer:
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a birefringent turning film or a non-birefringent turning film, each of the turning films having a birefringent structured surface; and a reflective polarizer. - View Dependent Claims (12, 14)
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11. An article for use in a display with a backlight, comprising as arranged in the following order from the backlight toward a viewer:
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a reflective polarizer; and a birefringent turning film or a non-birefringent turning film, each of the turning films having a birefringent structured surface. - View Dependent Claims (13, 15)
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Specification