Differentially-cured materials and process for forming same
US7230764B2 · kind B2 · utility
28Cited by
99References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2004 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Dec 22, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/30
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A light-redirecting optical structure includes a first side and a second side, the first side including plurality of linear prisms having a visibly random shaped surface on the prisms and a plurality of cross-cut prisms on first side which are oriented at an angle such that it is greater than zero degrees but less than 180 degrees.A backlight wedge includes a stepped structure on a bottom side that decreases in size traversing the wedge away from a light source which is positioned at an end and having a visibly random shaped surface on said wedge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.