One-way transparent display systems
First Claim
Patent Images
1. A display system, comprising:
- a projection screen, comprising a retarder plate between a polarizer and a transparent screen; and
a projector for projecting an image through the polarizer and the retarder plate onto the transparent screen, wherein the image is visible from a first side of the transparent screen and invisible from a second side of the transparent screen.
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Abstract
A display system includes a projection screen and a projector. The projection screen includes a retarder plate between a polarizer and a transparent screen. The projector projects an image through the polarizer and the retarder plate onto the transparent screen. The image is visible from a first side of the transparent screen but invisible from a second side of the transparent screen because any light passing twice through the retarder plate is blocked by the polarizer.
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Citations
35 Claims
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1. A display system, comprising:
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a projection screen, comprising a retarder plate between a polarizer and a transparent screen; and
a projector for projecting an image through the polarizer and the retarder plate onto the transparent screen, wherein the image is visible from a first side of the transparent screen and invisible from a second side of the transparent screen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for projecting an image on a transparent screen so the image is visible from a first side of the transparent screen but invisible from a second side of the transparent screen, the method comprising:
projecting the image through a polarizer and then a retarder plate onto the transparent screen, wherein any light traveling back from the transparent screen through the retarder plate a second time is blocked by the polarizer. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A display system, comprising:
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a transparent display; and
a polarizer on one side of the display. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A method for displaying an image on a transparent display so the image is visible from a first side of the transparent display but invisible from a second side of the transparent display, the method comprising:
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generating the image on the transparent display, wherein the image comprises polarized light propagating from the first and the second sides of the transparent display;
blocking the polarized light from the second side of the transparent display with a polarizer. - View Dependent Claims (26, 27, 28, 29, 30)
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- 31. A display system, comprising a pattern of nontransparent light-emitting pixels and transparent non-emitting pixels.
Specification