Polarizer having adhesive-covered polarizing layer, display device having the polarizer, and method of fabricating the polarizer
US10429550B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2016 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Jan 15, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3041
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Penetration of moisture and propagation of cracks is prevented in a polarizer. An adhesive is provided to cover one or more edges of the polarizer to seal the side section of the polarizer. The adhesive fills initial cracks to prevent the initial crack from being propagated to the inside of the polarizer. A protective film and the adhesive include a material having a hydrophobic characteristic. In a method of fabricating a polarizer, a polarizing film is shaped to form a polarizing layer, and a protective film is then attached by applying an adhesive onto the edges of the polarizing layer. Then, the adhesive is cured, and the protective film having the polarizing layer attached is processed, thereby dividing the protective film into a plurality of polarizers. The adhesive can firmly fix the crack since the adhesive is fills in cracks in the polarizing layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.