Transparent conductive laminate and touch panel using the same
US6689458B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2001 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Apr 10, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to a transparent conductive laminate and to a touch panel which uses the transparent conductive laminate and has excellent durability and excellent visibility. The transparent conductive laminate contains a transparent polymer substrate and a transparent conductive layer disposed on at least one of surfaces of the transparent polymer substrate, the transparent conductive layer has a surface containing micro bumps, wherein: (1) the transparent conductive laminate contains a cross-linked polymer layer (A) containing fine particles and a cross-linked polymer layer (B) between the transparent polymer substrate and the transparent conductive layer, said cross-linked polymer layer (A) is disposed between the transparent polymer substrate and said cross-linked polymer layer (B); (2) the cross-linked polymer layer (B) contacts the transparent conductive layer; and (3) the surface of said transparent conductive layer contains the bumps having an average height of 0.3 to 1 &mgr;m and a density in the range of 350 to 1,800 bumps/mm2. The transparent conductive laminate can be used as an electrode substrate to provide a touch panel which has excellent writing durability,…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.