Display System
First Claim
1. A display system, comprising:
- an image device used for producing a polarized image light;
an image reflecting element comprising;
a substrate; and
a phase modulating element adjacent to the substrate, the phase modulating element having a reflecting surface for receiving the polarized image light, wherein the reflecting surface reflects a portion of the polarized image light to produce a first reflecting polarized image light after the polarized image light is projected to the reflecting surface, another portion of the polarized image light enters the phase modulating element and is reflected by the substrate and then is projected out of the reflecting surface for producing a second reflecting polarized image light, and the phase difference of the first reflecting polarized image light and that of the second reflecting polarized image light is substantially equal to mm, and n is a positive odd number; and
a polarizing element for receiving and allowing the first reflecting polarized image light to pass therethrough, and blocking the second reflecting polarized image light.
1 Assignment
0 Petitions
Accused Products
Abstract
A display system 1 is composed of a ghost image reducing device 100 and an image device 10. The ghost image reducing device 100 comprises an image reflecting element 110 and a polarizing element 120. The image reflecting element 110 includes a substrate 112 and a phase modulating element 114 which is adjacent to the substrate 112 and has a reflecting surface 114a. The image device 10 generates a polarized image light P1 which is received by the reflecting surface 114a. Then, a portion of the polarized image light P1 is reflected by the reflecting surface 114a for producing a first reflecting polarized image light P2, another portion of the polarized light P1 is projected into the phase modulating element 114 and reflected by the substrate 112 for producing a second reflecting polarized image light S2 whose polarizing direction is different from that of the first reflecting polarized image light P2.
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Citations
21 Claims
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1. A display system, comprising:
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an image device used for producing a polarized image light; an image reflecting element comprising; a substrate; and a phase modulating element adjacent to the substrate, the phase modulating element having a reflecting surface for receiving the polarized image light, wherein the reflecting surface reflects a portion of the polarized image light to produce a first reflecting polarized image light after the polarized image light is projected to the reflecting surface, another portion of the polarized image light enters the phase modulating element and is reflected by the substrate and then is projected out of the reflecting surface for producing a second reflecting polarized image light, and the phase difference of the first reflecting polarized image light and that of the second reflecting polarized image light is substantially equal to mm, and n is a positive odd number; and a polarizing element for receiving and allowing the first reflecting polarized image light to pass therethrough, and blocking the second reflecting polarized image light. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A ghost image reducing device, comprising:
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an image device used for producing a polarized image light; a transparent substrate having a first surface and a second surface opposite to the first surface; and a phase modulating element disposed on the first surface of the transparent substrate, the phase modulating element having a reflecting surface for receiving the polarized image light, wherein the reflecting surface reflects a portion of the polarized image light to produce a reflecting polarized image light while the polarized image light is projected to the reflecting surface, another portion of the polarized image light is propagated across the phase modulating element and modulated by the phase modulating element to be a incident polarized image light having a desired polarizing direction, most of the incident polarized image light passed through the transparent substrate. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A display system, comprising:
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an image device for producing polarized image light; a phase retardation plate disposed on an image device; a transparent substrate having a first surface and a second surface disposed opposite the first surface; a phase modulating element disposed on the first surface of the transparent substrate; wherein a portion of the polarized image light is reflected by the a phase modulating element and then emitted in an observation direction, and another portion of the polarized image light is transmitted into the phase modulating element and is mostly emitted from the second surface of the transparent substrate. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification