Bi-stable projection screen
First Claim
1. A bi-stable projection screen, at least comprising:
- a bi-stable display unit, selectively operating in a first mode or a second mode when actuated, wherein when operating in the first mode, the bi-stable display unit receives a projection light and emits the projection light after modulation, when operating in the second mode, the bi-stable display unit is a pattern, and the display unit maintains the first mode or the second mode without electrical power; and
a light diffusion unit, receiving and diffusing the modulated projection light and then emitting it.
1 Assignment
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Accused Products
Abstract
A bi-stable projection screen includes a light diffusion unit and a bi-stable display unit stacked together. The bi-stable display unit, when actuated, selectively operates in a first mode or a second mode. When operating in the first mode (e.g., a transmission mode or a reflection mode), the bi-stable display unit receives a projection light from a front projection or a rear projection, and emits the projection light after modulation. When operating in the second mode (a non-transmission mode or a non-reflection mode), the bi-stable display unit is a pattern to become a part of a scene. The light diffusion unit receives and diffuses the modulated projection light to be perceived by human eyes.
9 Citations
10 Claims
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1. A bi-stable projection screen, at least comprising:
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a bi-stable display unit, selectively operating in a first mode or a second mode when actuated, wherein when operating in the first mode, the bi-stable display unit receives a projection light and emits the projection light after modulation, when operating in the second mode, the bi-stable display unit is a pattern, and the display unit maintains the first mode or the second mode without electrical power; and a light diffusion unit, receiving and diffusing the modulated projection light and then emitting it. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification