Non-inverting transflective assembly
First Claim
1. An assembly, comprising:
- a first reflective polarizer substantially reflecting light having a first polarization state and substantially transmitting light having a second polarization state;
a polarization rotating layer positioned to receive light passing through the first reflective polarizer; and
a second reflective polarizer positioned to receive light passing through the polarization rotating layer, the second reflective polarizer substantially reflecting light having a third polarization state back through the polarization rotating layer and substantially transmitting light having a fourth polarization state.
1 Assignment
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Accused Products
Abstract
A film that includes a first reflective polarizer substantially reflecting light having a first polarization state and substantially transmitting light having a second polarization state, a polarization rotating layer or depolarizing layer (or both) positioned to receive light passing through the first reflective polarizer, and a second reflective polarizer positioned to receive light passing through the polarization rotating layer or depolarizing layer, the second reflective polarizer substantially reflecting light having a third polarization state back through the polarization rotating layer or depolarizing and substantially transmitting light having a fourth polarization state. Articles containing the film can be formed.
85 Citations
28 Claims
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1. An assembly, comprising:
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a first reflective polarizer substantially reflecting light having a first polarization state and substantially transmitting light having a second polarization state;
a polarization rotating layer positioned to receive light passing through the first reflective polarizer; and
a second reflective polarizer positioned to receive light passing through the polarization rotating layer, the second reflective polarizer substantially reflecting light having a third polarization state back through the polarization rotating layer and substantially transmitting light having a fourth polarization state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An assembly, comprising:
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a first reflective polarizer substantially reflecting light having a first polarization state and substantially transmitting light having a second polarization state;
a depolarizing layer positioned to receive light passing through the first reflective polarizer, the depolarizing layer converting a portion of incident light into an orthogonal polarization state; and
a second reflective polarizer positioned to receive light passing through the depolarizing layer, the second reflective polarizer substantially reflecting light having a third polarization state back through the depolarizing layer and substantially transmitting light having a fourth polarization state. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A display, comprising:
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a liquid crystal cell that is configured and arranged to operate using polarized light;
a first reflective polarizer substantially reflecting light having a first polarization state and substantially transmitting light having a second polarization state;
a polarization rotating layer positioned to receive light passing through the first reflective polarizer; and
a second reflective polarizer positioned to receive light passing through the polarization rotating layer, the second reflective polarizer substantially reflecting light having a third polarization state back through the polarization rotating layer and substantially transmitting light having a fourth polarization state.
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26. A display, comprising:
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a liquid crystal cell that is configured and arranged to operate using polarized light;
a first reflective polarizer substantially reflecting light having a first polarization state and substantially transmitting light having a second polarization state;
a depolarizing layer positioned to receive light passing through the first reflective polarizer, the depolarizing layer converting a portion of incident light into an orthogonal polarization state; and
a second reflective polarizer positioned to receive light passing through the polarization rotating layer, the second reflective polarizer substantially reflecting light having a third polarization state back through the polarization rotating layer and substantially transmitting light having a fourth polarization state.
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27. A method of polarizing light, the method comprising:
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directing light at a first reflective polarizer, the first reflective polarizer substantially reflecting light having a first polarization state and substantially transmitting light having a second polarization state;
rotating, to a first rotated polarization state, the light having the first polarization state that is transmitted by the first reflective polarizer;
receiving in a second reflective polarizer the light having the first rotated polarization state, the second reflective polarizer substantially reflecting light having a third polarization state and substantially transmitting light having a fourth polarization state;
rotating, to a second rotated polarization state, the light having the third polarization state that is reflected by the second reflective polarizer; and
receiving in the first reflective polarizer the light having the second rotated polarization state, the first reflective polarizer substantially reflecting light having the first polarization state and substantially transmitting light having the second polarization state.
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28. A method of polarizing light, the method comprising:
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directing light at a first reflective polarizer, the first reflective polarizer substantially reflecting light having a first polarization state and substantially transmitting light having a second polarization state;
converting a portion of the light transmitted by the first reflective polarizer to an orthogonal polarization state;
receiving in a second reflective polarizer the light having the orthogonal polarization state, the second reflective polarizer substantially reflecting light having a third polarization state and substantially transmitting light having a fourth polarization state;
converting a portion of the light that is reflected by the second reflective polarizer to an orthogonal polarization state; and
receiving in the first reflective polarizer the light having the orthogonal polarization state, the first reflective polarizer substantially reflecting light having the first polarization state and substantially transmitting light having the second polarization state.
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Specification