Roll of optical film laminate, and method and system for manufacturing the same
US8248558B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2012 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Feb 29, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24942
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A roll of optical-film laminate that increases accuracy, speed and yield in the production of liquid-crystal display elements. The roll of optical film laminate is for use in an apparatus for continuously producing liquid-crystal display elements. The optical film comprises a polarizing composite film of a laminate having a continuous web of polarizer and a protective film superposed on one side of the continuous polarizer, an adhesive layer disposed on one side of the laminate; and a carrier film superposed on the adhesive layer of the polarizing film in a peelable state. Defective and normal regions in the polarizing film are determined. According to these determined regions, coded information that specifies positions of slit lines to be formed in the optical-film web are recorded on the continuous web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.