Display backlight device with auxiliary light emitting element
US8439518B2 · kind B2 · utility
1Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2009 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Aug 27, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0028
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illuminating device includes a hot-cathode fluorescent tube (discharge tube) and a light emitting surface that emits light from the hot-cathode fluorescent tube. An auxiliary light emitting portion is provided in the vicinity of a non-lighting region of the hot-cathode fluorescent tube. The auxiliary light emitting portion includes an optical fiber having an incident portion for receiving light from the hot-cathode fluorescent tube, and a light guide plate that receives light from the optical fiber and emits the incident light toward the light emitting surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.