Set of material rolls and method for production of material roll
US8088463B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2009 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Apr 14, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1476
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A set of material rolls is used for the process of bonding their pieces to both sides of an optical display unit, respectively, and includes: a first roll that is a roll of a long sheet material including a first optical film, a pressure-sensitive adhesive layer and a release film laminated in this order, wherein the first optical film includes a polarizing plate, and having undergone a slitting process in a direction parallel to the absorption axis of the polarizing plate so that it has a width corresponding to the short side of the optical display unit; and a second roll that is a roll of another long sheet material with a similar structure having undergone a slitting process in a direction parallel to the absorption axis of the polarizing plate so that it has a width corresponding to the long side of the optical display unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.