Display with light concentrating substrate
First Claim
1. A display, comprising:
- an array of pixels, each pixel including;
a hydrophobic layer;
an electro-wetting fluid adjacent the hydrophobic layer, the electro-wetting fluid comprising at least first and second fluids immiscible with each other and having different polar properties and different optical properties; and
at least one electrode wherein application of a voltage to the electrode alters a wetting effect of the electro-wetting fluid on the hydrophobic layer in a light-modulating area of the pixel; and
a light-concentrating substrate comprising an array of light-concentrating structures each configured to concentrate light onto the light-modulating area of a corresponding one or more pixels within the array of pixels.
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Accused Products
Abstract
A display which includes an array of pixels. Each pixel includes a hydrophobic layer; an electro-wetting fluid adjacent the hydrophobic layer, the electro-wetting fluid including at least first and second fluids immiscible with each other and having different polar properties and different optical properties; and at least one electrode wherein application of a voltage to the electrode alters a wetting effect of the electro-wetting fluid on the hydrophobic layer in a light-modulating area of the pixel. The display further includes a light-concentrating substrate including an array of light-concentrating structures each configured to concentrate light onto the light-modulating area of a corresponding one or more pixels within the array of pixels.
26 Citations
23 Claims
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1. A display, comprising:
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an array of pixels, each pixel including; a hydrophobic layer; an electro-wetting fluid adjacent the hydrophobic layer, the electro-wetting fluid comprising at least first and second fluids immiscible with each other and having different polar properties and different optical properties; and at least one electrode wherein application of a voltage to the electrode alters a wetting effect of the electro-wetting fluid on the hydrophobic layer in a light-modulating area of the pixel; and a light-concentrating substrate comprising an array of light-concentrating structures each configured to concentrate light onto the light-modulating area of a corresponding one or more pixels within the array of pixels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A display, comprising:
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an array of pixels; and a light-concentrating substrate comprising an array of two-dimensional light-concentrating structures each configured to concentrate light onto light-modulating areas of corresponding pixels within the array of pixels, wherein the array of pixels is arranged in rows and columns, and the two-dimensional light concentrating structures have a cross-section that is invariant in one direction and thereby shared by pixels along a respective row or column.
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15. A display, comprising:
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an array of pixels; and a light-concentrating substrate comprising an array of two-dimensional light-concentrating structures each configured to concentrate light onto light-modulating areas of corresponding pixels within the array of pixels, wherein; each pixel comprises; a hydrophobic layer; an electro-wetting fluid adjacent the hydrophobic layer, the electro-wetting fluid comprising at least first and second fluids immiscible with each other and having different polar properties and different optical properties; and a central pad electrode and two outer pad electrodes on opposite sides of the central pad electrode, wherein application of a voltage to the central and outer pad electrodes alters a wetting effect of the electro-wetting fluid on the hydrophobic layer in the light-modulating area of the pixel.
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16. A display, comprising:
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an array of pixels; and a light-concentrating substrate comprising an array of light-concentrating structures each configured to concentrate light onto the light-modulating area of a corresponding one or more pixels within the array of pixels, wherein the light-concentrating structures are made from a first material having a first refractive index surrounded by a second material having a second refractive index lower than the first refractive index, and the light-concentrating structures rely primarily on total internal reflection to concentrate the light. - View Dependent Claims (17, 18)
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19. A display, comprising:
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an array of pixels; and a light-concentrating substrate comprising an array of truncated compound parabolic concentrators each configured to concentrate light onto light-modulating areas of corresponding pixels within the array of pixels. - View Dependent Claims (20)
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21. A display, comprising:
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an array of pixels; a first light-concentrating substrate arranged on one side of the array of pixels and comprising a first array of light-concentrating structures each configured to concentrate light onto the light-modulating area of a corresponding one or more pixels within the array of pixels; and a second light-concentrating substrate arranged an opposite side of the array of pixels and comprising a second array of light-concentrating structures each configured to concentrate light onto the light-modulating area of a corresponding one or more pixels within the array of pixels. - View Dependent Claims (22, 23)
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Specification