Light guide plate and light emitting keyboard having the same
US9887052B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2016 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Dec 7, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2219/064
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light guide plate includes a light shielding plate body, a light guide plate body and a plurality of light source receiving spaces. The light shielding plate body includes a peripheral frame, a plurality of longitudinal and transverse partition strips provided in the peripheral frame, and a plurality of light guide regions cooperatively defined by the peripheral frame and the longitudinal and transverse partition strips. The light guide regions are configured to respectively align with the keys. The light guide plate body includes a plurality of light guide blocks embedded in the light guide regions, respectively. The light source receiving spaces correspond to the light guide blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.