Display having a reflective polarizer
First Claim
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1. A display, comprising:
- a light source;
a display module; and
a reflective polarizer disposed between the light source and the display module and including at least one material having anisotropic refractive indices, the reflective polarizer substantially reflecting light of a first polarization and substantially transmitting light of a second polarization, wherein reflection of off-axis light of the second polarization exhibits a Brewster angle minimum.
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Abstract
A multiple layer reflective polarizer 12 is described. This element is placed between and optical cavity 24 and an LCD module 16 to form an optical display. The reflective polarizer reflects some light into the optical cavity 24 where it is randomized and may ultimately emerge with the correct polarization to be transmitted out of the display.
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Citations
7 Claims
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1. A display, comprising:
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a light source; a display module; and a reflective polarizer disposed between the light source and the display module and including at least one material having anisotropic refractive indices, the reflective polarizer substantially reflecting light of a first polarization and substantially transmitting light of a second polarization, wherein reflection of off-axis light of the second polarization exhibits a Brewster angle minimum. - View Dependent Claims (2, 3, 4, 5)
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6. A display, comprising:
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lighting means for generating light; modulating means for modulating light to produce an image; and polarizing means, disposed between the lighting means and modulating means, for substantially reflecting light of a first polarization and substantially transmitting light of a second polarization, wherein polarizing means includes means for producing a Brewster angle minimum for reflection of off axis light of the second polarization. - View Dependent Claims (7)
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Specification