Self-scanning light-emitting device
US6531826B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2001 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Apr 19, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/453
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A self-scanning light-emitting device is provided in which the amounts of light of light-emitting elements may be corrected to make the distribution of amounts of light in a luminescent chip or among luminescent chips uniform. The correction for amounts of light of light-emitting elements may be carried out by regulating the time duration of on-state of a light-emitting element or the voltage of a write signal applied to a light-emitting element. According to the present invention, the distribution of amounts of light becomes uniform, so that the printing quality of a printer using such self-scanning light-emitting device is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.