Apparatus and methods for static and semi-static displays
First Claim
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1. A display material for providing controlled transparent illumination, comprising:
- a plurality of tapered apertures within an opaque planar base material;
wherein said tapered apertures are sealed providing a narrow transparent window on a first side of said base material and a wider transparent window on a second side of said base material;
fluid filling said tapered apertures; and
particles retained within the fluid of said tapered apertures the combination forming transparent cells;
said particles configured for moving within said fluid in response to the application of a sufficient electric field;
whereby said particles upon moving into said narrow transparent window on said first side of material in response to an electric field block a substantial portion of light transmission, but when moved into said wider transparent window on a second side block substantially less light increasing the transparency of said material.
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Abstract
A display device for modulating light intensity in response to programmed data output. Tapered cells within a base material containing a fluid within which are contained electrostatically responsive particles. Electrodes couple data signals to opposing portions of the cells, whereupon the position of the particles is modulated in response to the electric potential applied to said electrodes. A number of electronic ink displays, systems and method aspects are described.
248 Citations
21 Claims
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1. A display material for providing controlled transparent illumination, comprising:
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a plurality of tapered apertures within an opaque planar base material;
wherein said tapered apertures are sealed providing a narrow transparent window on a first side of said base material and a wider transparent window on a second side of said base material;
fluid filling said tapered apertures; and
particles retained within the fluid of said tapered apertures the combination forming transparent cells;
said particles configured for moving within said fluid in response to the application of a sufficient electric field;
whereby said particles upon moving into said narrow transparent window on said first side of material in response to an electric field block a substantial portion of light transmission, but when moved into said wider transparent window on a second side block substantially less light increasing the transparency of said material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21-59. -59. (canceled)
Specification