Display apparatus having quarter-wave plate positioned to eliminate conflicts with polarized sunglasses
First Claim
1. A display apparatus adapted for viewing by a person wearing linearly polarized lenses, the display apparatus comprising:
- a display device for displaying information, the display device providing as an output linearly polarized light travelling toward the person; and
a -quarter-wave plate coupled to the display device and positioned between the displays device and the person, the quarter-wave plate being so disposed and arranged such that it receives the linearly polarized light from the display device as an input and provides as a display apparatus output circularly polarized light travelling toward the person which remains circularly polarized until being received by the linearly polarized lenses worn by the viewer.
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Accused Products
Abstract
A display apparatus adapted for viewing by a person wearing linearly polarized lenses, such as sunglasses, is disclosed. The display apparatus includes a display device, such as an LCD or a filtered TFEL display, which displays information by providing as an output linearly polarized light travelling toward the person viewing the display apparatus. A quarter-wave plate is positioned between the display device and the linearly polarized lenses of the sunglasses. The quarter-wave plate receives the linearly polarized light from the display device as an input and provides as an output circularly polarized light which passes through the linearly polarized lenses of the sunglasses substantially without attenuation.
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Citations
20 Claims
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1. A display apparatus adapted for viewing by a person wearing linearly polarized lenses, the display apparatus comprising:
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a display device for displaying information, the display device providing as an output linearly polarized light travelling toward the person; and a -quarter-wave plate coupled to the display device and positioned between the displays device and the person, the quarter-wave plate being so disposed and arranged such that it receives the linearly polarized light from the display device as an input and provides as a display apparatus output circularly polarized light travelling toward the person which remains circularly polarized until being received by the linearly polarized lenses worn by the viewer. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A display for displaying information and adapted for viewing by a person wearing a linearly polarized lens, the polarized lens having a transmission axis, the display comprising:
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a display device having an output linear polarizing layer such that the display device provides as an output linearly polarized light travelling toward the person; and a polarization conversion layer coupled to the display device at a position between the output linear polarizing layer and the polarized lens worn by the person, the polarization conversion layer being so disposed and arranged on the display such that it is adapted to receive the linearly polarized light from the display devce and to convert the linearly polarized light into circularly polarized light which remains circularly polarized until being received by the polarized lens of the person. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. An apparatus for displaying information and adapted for viewing by a person wearing a linearly polarized lens, the apparatus comprising:
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a display device providing as an output linearly polarized light; a quarter-wave plate retarder coupled to the display device and positioned between the display device and the lens worn by the person viewing the information displayed by the apparatus, the quarter-wave plate being oriented and so disposed and arranged on the apparatus such that it receives the linearly polarized light as an input and provides as an output circularly polarized light, the circularly polarized light through the polarized lens substantially without remaining circularly polarized until being received by the linearly polarized lens worn by the person. - View Dependent Claims (17, 18, 19, 20)
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Specification