Substrate with transparent electrodes and devices incorporating it
US7449732B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2004 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Sep 13, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/041
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The substrate with electrodes is formed of a transparent material onto which is deposited a film (1) of a transparent conductive material of thickness e1 and of refractive index n1, said film being structured to form a set of electrodes (1a) whose contours (8) delimit insulating spaces (3), wherein the insulating spaces (3) are filled with a transparent dielectric material of thickness e2 and of refractive index n2 so that the respective thicknesses of the conductive material and the dielectric material are inversely proportional to the values of the refractive indices of said materials and said dielectric material forms neither depressions nor beads at the contour (8) of the electrodes. A hardcoating layer (7) may be disposed between the substrate (5) and the electrodes and a protective film (9) added.The substrate with electrodes is obtained by UV irradiation through a single mask.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.