FORMING AN ELECTROWETTING MODULE HAVING A HYDROPHILIC GRID
First Claim
1. A method of forming a matrix of electrowetting pixels, comprising:
- patterning a base material defining a plurality of wells having a bottom surface and sidewalls;
forming a hydrophobic material on the bottom surface;
applying a beam upon the sidewalls at an angle to form a hydrophilic material on the sidewalls; and
disposing first and second fluids within the wells, the second fluid insoluble in the first fluid.
4 Assignments
0 Petitions
Accused Products
Abstract
A method of forming a matrix of electrowetting pixels includes forming a patterned layer of electrodes (512) on a substrate (510) and forming a patterned insulating layer (514) on the electrodes (512) and the substrate (510) to define a plurality of wells (516), each of the wells (516) aligned over one of the electrodes (512). A hydrophobic material (518) is formed on the bottom surfaces of the wells (516) and a hydrophilic material (526) is formed on sidewalls (519) of the wells (516), for example by one of selective reaction, selective deposition and selective etching, by the application of a beam (524) at an angle to impact the sidewalls (519) while substantially avoiding impacting the bottom surface (515). First and second liquids (532, 534) are disposed within the wells (516), the first liquid being not soluble in the second liquid.
14 Citations
21 Claims
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1. A method of forming a matrix of electrowetting pixels, comprising:
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patterning a base material defining a plurality of wells having a bottom surface and sidewalls; forming a hydrophobic material on the bottom surface; applying a beam upon the sidewalls at an angle to form a hydrophilic material on the sidewalls; and disposing first and second fluids within the wells, the second fluid insoluble in the first fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of forming a matrix of electrowetting pixels, comprising:
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forming a patterned layer of electrodes on a substrate; forming a patterned insulating material on the electrodes and the substrate to define a plurality of wells; applying a beam to sidewalls of the wells to form a hydrophilic material on the sidewalls while forming a hydrophobic material on bottom surfaces of the wells; and placing first and second liquids within the wells, the second liquid being insoluble in the first liquid. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method of forming a matrix of electrowetting pixels, comprising:
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forming a patterned layer of electrodes on a substrate; forming a patterned insulating layer on the electrodes and the substrate to define a plurality of wells, each of the wells aligned over one of the electrodes; forming a hydrophobic material on the bottom surfaces of the wells and a hydrophilic material on sidewalls of the wells by the application of a beam at an angle to impact the sidewalls while substantially avoiding impacting the bottom surface; placing first and second liquids within the wells, the second liquid insoluble in the first liquid. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification