Electrowetting display
First Claim
1. A method of operating a display comprising:
- applying a voltage across an electrowetting display element;
migrating an ionic fluid within the display element between an electronic conductive fluid and a display element wall;
migrating a reflective electronic conductive fluid within the electrowetting display element in a direction opposite the ionic fluid migration; and
reflecting light off the reflective electronic conductive fluid to create an optical image.
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Accused Products
Abstract
The present invention comprises construction of a display from display elements that are actuated using the physical principle of electrowetting. In one embodiment, pores within porous silicon are filled with an ionic and an optically reflective electronic conductor, and actuated by application of an electric potential across the pore. An image is then formed on an array of such pores by applying an appropriate voltage to each pore of the array to create an optical image in the light reflected off the electronic conductors. Such a display may be constructed to have very high resolution, making it desirable for creating real-time holographic images, or for creating high-resolution mask images for use in photolithography.
55 Citations
20 Claims
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1. A method of operating a display comprising:
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applying a voltage across an electrowetting display element;
migrating an ionic fluid within the display element between an electronic conductive fluid and a display element wall;
migrating a reflective electronic conductive fluid within the electrowetting display element in a direction opposite the ionic fluid migration; and
reflecting light off the reflective electronic conductive fluid to create an optical image. - View Dependent Claims (2, 3, 4, 5)
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6. A method of forming a holographic image, comprising:
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applying a voltage across an electrowetting display element within a display, the electrowetting display elements forming a display having a matrix of elements with at least 1000 lines of pores per millimeter;
migrating an ionic fluid within the display element between an electronic conductive fluid and a display element wall;
migrating a reflective electronic conductive fluid within the electrowetting display element in a direction opposite the ionic fluid migration; and
reflecting light off the reflective electronic conductive fluid to create an optical image. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method of fabricating a display comprising:
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fabricating a substrate of insulating material with at least one flat surface;
forming a matrix of pores extending from the flat surface into the substrate;
injecting an ionic conductive liquid and a reflective electronic conductive liquid into each of the pores in the matrix of pores;
capping each pore of the matrix of pores with a transparent conductive cap. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification