Reflective polarizing module having particles and backlight unit including same
US10191321B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2016 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | May 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13362
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a reflective polarizing module that comprises: a reflective polarizing sheet that has a plurality of layers with different refractive indexes stacked on each other and selectively transmits light; a first light-condensing sheet having a first structuralized pattern in which a first unit light-condensing object having a gradually decreasing transverse cross-sectional area toward the upper portion thereof is continually repeated, wherein the upper end portion of the first unit light-condensing object is bonded to the lower portion of the reflective polarizing sheet such that the upper end portion has a first width in the transverse direction; and a coating layer located on the upper surface of the reflective polarizing sheet and having a plurality of particles that diffuse the light transferred through the reflective polarizing sheet, wherein at least some of the plurality of particles have diameters that are smaller than the first width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.