Light-guide-plate creation method and device
US9921365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2012 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Oct 20, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0061
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A light guide plate for a liquid crystal screen display apparatus providing a favorable visual effect. The printing data of a light reflection pattern stored in a computer is transferred to an inkjet printer to allow the inkjet printer to subject a substantially-rectangular printing face surrounded by upper and lower and left and right edges of a light guide plate to a reflective printing for diffusing light emitted from a light source into the interior of the light guide plate. The printing data for performing the reflective printing is prepared so that a printing density is increased from the edges in the four directions corresponding to the edges in the four directions of the light guide plate toward one or more high density setting points set in front of the respective opposed edges. The reflective printing is performed using white ink including titanium oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.