Method and apparatus for sequentially laminating optical film including polarizing film, to rectangular-shaped panel
US9283740B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2011 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Mar 1, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1304
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of sequentially laminating a carrier film-attached optical film laminate to a rectangular-shaped panel having a long side and a short side, is provided. The optical film laminate includes an optical film including a thin polarizing film, and a carrier film attached to the optical film through an adhesive layer. The method includes the steps: forming a plurality of slits in the carrier film-attached optical film laminate in a width direction thereof at lengthwise given intervals to extend from a surface of the optical film on a side opposite to the carrier film to a depth reaching a surface of the carrier film adjacent to the optical film to thereby form an optical film sheet supported by the carrier film, between lengthwisely adjacent two of the slits; and laminating each of the optical film sheets to a respective one of the panels through the adhesive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.