Interferometric modulator in transmission mode
First Claim
Patent Images
1. A device, comprising:
- a movable membrane including a partially reflective mirror, the movable membrane configured to move from a first position to a second position; and
a substrate positioned on a first side of the movable membrane;
wherein with the movable membrane in the first position visible light of a desired wavelength range incident on a second side of the movable membrane passes through the movable membrane and through the substrate, andwherein with the movable membrane in the second position substantially all of the visible light of the desired wavelength range is blocked.
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Abstract
A transmissive micromechanical device includes a substrate, an optical stack over the substrate and a moveable membrane over the optical stack. The moveable membrane may include a partially reflective mirror and be configured to move from a first position to a second position. When the movable membrane is in the first position the transmissive micromechanical device is configured to pass light of a predetermined color and when the movable membrane is in the second position, the micromechanical device is configured to block substantially all of light incident on the substrate.
500 Citations
43 Claims
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1. A device, comprising:
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a movable membrane including a partially reflective mirror, the movable membrane configured to move from a first position to a second position; and a substrate positioned on a first side of the movable membrane; wherein with the movable membrane in the first position visible light of a desired wavelength range incident on a second side of the movable membrane passes through the movable membrane and through the substrate, and wherein with the movable membrane in the second position substantially all of the visible light of the desired wavelength range is blocked. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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- 11. A transmissive mechanical device, comprising a first optical stack separated by a gap from a second optical stack, wherein the first optical stack includes at least one material with an index of refraction greater than 2.0 and at least one material with an index of refraction less than 1.3, and wherein the second optical stack includes a glass substrate, at least one material with an index of refraction greater than 2.0 and at least one material with an index of refraction less than 1.3.
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16. A transmissive display, comprising:
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a transparent substrate; a first reflecting layer disposed on the transparent substrate; and a movable membrane including a second reflecting layer, wherein the second reflecting layer and the first reflecting layer form a variable optical cavity, wherein the variable optical cavity is adjusted as the movable membrane moves from a first position to a second position, and wherein when the movable membrane is in the first position, the movable membrane allows transmission of wavelengths of light in the range of ultraviolet or infrared light to pass through the transparent substrate, and absorbs substantially the entire wavelength range of visible light incident on the movable membrane. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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25. A device, comprising:
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a substrate; and a movable membrane positioned on a first side of the substrate, the movable membrane comprising a partially reflective mirror, and the movable membrane configured to move from a first position to a second position, wherein with the movable membrane in the first position visible light of a desired wavelength range passes through the second side of the substrate and through the movable membrane, and wherein with the movable membrane in the second position substantially all of the visible light of the desired wavelength range is blocked. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A transmissive display, comprising:
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a transparent substrate; a first reflecting layer disposed on a first surface of the transparent substrate; a movable membrane comprising a second reflecting layer, wherein the second reflecting layer and the first reflecting layer form a variable optical cavity; and wherein the variable optical cavity is adjusted as the movable membrane moves from a first position to a second position, and wherein when the movable membrane is in the first position, the movable membrane allows transmission of wavelengths of light passing through the substrate in the range of ultraviolet or infrared light, and absorbs substantially the entire wavelength range of incident visible light. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43)
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Specification