Electrofluidic display and methods for making
US9753273B2 · kind B2 · utility
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2Claims
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Key dates
| Filing date | Apr 2, 2015 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Apr 2, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/24
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for manufacturing a freestanding film having at least one population of through holes cumulatively totaling at least 1% of the film area, wherein the standard deviation of hole diameters is less than 25% and a thickness less than 25 micrometers, The film provides a carrier substrate, a photo-curable material, a release agent and deposits a photo-curable material on the substrate, selectively curing the material and leaving uncured material in the pattern of holes, dissolving away the uncured material and removing the cured material from the carrier. Methods and apparatus are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.