Multilayer optical sheet module
US9052498B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2012 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Aug 2, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24562
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is disclosed a multilayer optical sheet module including an upper optical sheet comprising a first structural pattern projected upward; a lower optical sheet disposed under the upper optical sheet, the lower optical sheet comprising a second structural pattern projected toward the upper optical sheet; and an adhesion layer provided between the upper optical sheet and the lower optical sheet, wherein the second structural pattern includes a light transmitting part having a traverse cross section getting smaller along an upward direction; and an embedded part continuously connected to an upper portion of the light transmitting part, with a predetermined portion embedded in the adhesion layer, and a circumference of a cross section possessed by the embedded part, contacting with the adhesion layer, is larger than a circumference of a virtual cross section locus formed by extending the light transmitting part upward, with a continuous slope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.