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US 2020/0004098 A1Published application
Reusable display addressable with incident light
AssigneeE Ink Corporation
InventorsGeorge G. HARRIS, Richard J. PAOLINI, JR.
Life of this patent
Estimating the term…
Abstract
A reflective color display that can be addressed from the front (viewing surface side) of the display with a light source, such as a projector, LED, or laser. The display comprises (in order) a color filter array, a transparent electrode, an electro-optic medium, a photoconductive material, and a rear electrode. The color displays of the invention are useful for large format color signage, such as billboards and wayfinding.
Claims19
A method for displaying a reflective image, comprising:
- providing a display including,
- a color filter array,
- a transparent electrode,
- an electro-optic medium,
- a photoconductive material, and
- a rear electrode;
- supplying a first electrical potential between the transparent electrode and the rear electrode;
- and
- exposing the display to a source of patterned light.
6 more elements
A system for providing a reflective image, comprising:
- a display including,
- a color filter array,
- a transparent electrode,
- an electro-optic medium,
- a photoconductive material, and
- a rear electrode;
- a voltage supply for providing an electrical potential between the transparent electrode and the rear electrode;
- and
- a controller for regulating the electrical potential.
6 more elements
A system for providing a reflective image, comprising:
- a display including,
- a color filter array,
- a transparent electrode,
- an electro-optic medium, and
- a photoconductive material;
- an electrode configured to provide an electrical potential suitable for addressing a portion of the display with light;
- and
- an illumination source configured to illuminate a portion of the display with light to address the display.
5 more elements
Dependencies are inferred from the claim text.