Optical film for reducing color shift and organic light-emitting display device employing the same
US10050235B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 9, 2014 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Mar 31, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/876
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical film includes: a high refractive index pattern layer including a material having a refractive index greater than about 1, where a plurality of grooves, each having a curved groove surface and a depth greater than a width thereof, is defined on a first surface of the high refractive index pattern layer, the plurality of grooves defines a pattern, the plurality of grooves are two-dimensionally arranged in a first direction and a second direction, and a first distance between adjacent grooves in the first direction and a second distance between adjacent grooves in the second direction are different from each other; and a low refractive index pattern layer including a material having a refractive index less than the refractive index of the high refractive index pattern layer and further including a plurality of fillers which fills the plurality of grooves, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.