Laser light source device and display apparatus
US10319269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2016 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Dec 10, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4093
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A laser light source device includes a semiconductor laser, a current supplying unit to supply a driving current to the semiconductor laser, and a signal generator to generate current intensity data for setting an intensity of the driving current. The signal generator generates, for an input signal corresponding to continuous pixels for a same color, a plurality of sets of the current intensity data indicating current intensities different from each other, and transmits the plurality of sets of the current intensity data to the current supplying unit while sequentially switching the plurality of sets of the current intensity data. The current supplying unit drives the semiconductor laser based on the plurality of different sets of the current intensity data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.