Light guide device and manufacturing method thereof
US8625940B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2012 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Jul 6, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2307/40
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A light guide device includes a light guide plate, a diffusion layer, and a brightening layer. The light guide plate includes a first surface, a second surface opposite to the first surface, and diffusion pots positioned on the first surface. The diffusion layer is adhered to the second surface of the light guide plate, and includes transparent adhesive and diffusion particles scattered in the transparent adhesive. The brightening layer is adhered to the diffusion layer, and includes a micro structure formed on a surface of the brightening layer facing away from the diffusion layer. The micro structure includes a number of cutouts. A manufacturing method for the light guide device is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.