Method and device for modulating light with optical compensation
First Claim
1. A display device comprising:
- a substrate;
a reflector located below said substrate, wherein the reflector is configured to be movable to provide modulation; and
an optical compensation material located above said substrate,wherein the optical compensation material is configured to mitigate or eliminate a shift in color with respect to viewing angle, andwherein the optical compensation material comprises at least one film selected from a group consisting of;
a film with holographic properties and a film with micro-optics.
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Accused Products
Abstract
An interferometric modulator (Imod) cavity has a reflector and an induced absorber. A direct view reflective flat panel display may include an array of the modulators. Adjacent spacers of different thicknesses are fabricated on a substrate by a lift-off technique used to pattern the spacers which are deposited separately, each deposition providing a different thickness of spacer. Or a patterned photoresist may be used to allow for an etching process to selectively etch back the thickness of a spacer which was deposited in a single deposition. A full-color static graphical image may be formed of combined patterns of interferometric modulator cavities. Each cavity includes a reflector, and an induced absorber, the induced absorber including a spacer having a thickness that defines a color associated with the cavity.
372 Citations
45 Claims
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1. A display device comprising:
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a substrate; a reflector located below said substrate, wherein the reflector is configured to be movable to provide modulation; and an optical compensation material located above said substrate, wherein the optical compensation material is configured to mitigate or eliminate a shift in color with respect to viewing angle, and wherein the optical compensation material comprises at least one film selected from a group consisting of;
a film with holographic properties and a film with micro-optics. - View Dependent Claims (2)
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3. A display device comprising:
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a substrate; a reflector located below said substrate, wherein the reflector is configured to be movable to provide modulation; and an optical compensation material located above said substrate, wherein the optical compensation material comprises a light source and is configured to provide supplemental frontlighting. - View Dependent Claims (4, 5, 6, 7)
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8. device, comprising:
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a light-absorbing material; a substrate located above said light-absorbing material; a reflector located below said light-absorbing material, wherein the reflector is configured to be movable to provide modulation; an optical compensation material located above the substrate; a conducting layer located between said light absorbing material and said substrate or between said light absorbing material and said reflector; and a cavity, a portion of which is located between said light absorbing material and said reflector. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A display device, comprising:
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a plurality of display pixels comprising; a light-absorbing material; a substrate located above said light-absorbing material; and a reflector located below said light-absorbing material; and an optical compensation material located above said substrate, wherein the optical compensation material comprises at least one layer selected from a group consisting of;
a layer with holographic properties, a layer with micro-optics, and a layer with patterned organic emitters,wherein the reflector is configured to be movable to provide modulation.
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19. A device, comprising:
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a reflector; a light-absorbing material placed between the reflector and a medium from which light is incident, the light-absorbing material being configured to attenuate light incident upon it, and having radiation admittance characteristics that substantially match the admittance of the reflector to the admittance of said medium; a conductor disposed between the light-absorbing material and the medium or between the light-absorbing material and the reflector; and a cavity having a variable thickness, a portion of said cavity disposed between the reflector and the light-absorbing material. - View Dependent Claims (20, 21, 22, 23)
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24. A display device, comprising:
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a reflector; a light-absorbing material placed between the reflector and a medium from which light is incident, the light-absorbing material being configured to attenuate light incident upon it, and having radiation admittance characteristics that substantially match the admittance of the reflector to the admittance of said medium; and an optical compensation material located on the other side of the medium from the reflector, wherein the optical compensation material comprises at least one layer selected from a group consisting of;
a layer with holographic properties, a layer with micro-optics, and a layer with patterned organic emitters. - View Dependent Claims (25)
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26. A method of manufacturing a device, the method comprising:
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forming a reflective layer, the reflector configured to be movable to provide modulation; forming a layer of absorbing material; providing a substrate layer; providing an optical compensation material above the substrate; and forming a conducting layer between the layer of absorbing material and the substrate layer, wherein the layer of absorbing material is located between the substrate layer and the reflective layer. - View Dependent Claims (27, 28, 29)
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30. A method of manufacturing a device, the method comprising:
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forming a reflective layer, wherein the reflective layer is configured to be movable to provide modulation; providing a substrate layer; and providing an optical compensation layer, wherein the substrate layer is located between the optical compensation layer and the reflective layer, wherein the optical compensation layer comprises at least one layer selected from a group consisting of;
a layer with holographic properties, a layer with micro-optics, and a layer with patterned organic emitters,wherein the reflector is a portion of an interferometric modulator. - View Dependent Claims (31, 32)
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33. A device comprising:
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a reflector; a medium from which light is incident; a light absorbing material located between the reflector and the medium; and a conducting layer disposed between said medium and said light absorbing material, wherein the reflector is configurable in a first position such that the light absorbing material substantially matches the admittance of the reflector to the admittance of the medium, and wherein the reflector is configurable in a second position such that the light absorbing material does not match the admittance of the reflector to the admittance of the medium. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40)
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41. A method of manufacturing a display device, the method comprising:
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forming a reflective layer, wherein the reflective layer is configured to be movable to provide modulation; providing a substrate layer; and providing an optical compensation layer, wherein the substrate layer is located between the optical compensation layer and the reflective layer, wherein the optical compensation layer comprises a light source and is configured to provide supplemental frontlighting. - View Dependent Claims (42, 43, 44, 45)
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Specification