Drive device and method for scanning a monolithic integrated LED array
US5751263A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 1996 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | May 23, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A matrix including a plurality of light emitting devices organized into a plurality of rows of first contacts and columns of second contacts. Row/column decoding switches each coupled to a number of individual rows/columns and to a number of row/column address lines for selecting an addressed one of the number of individual rows/columns, and to an individual row/column data lead for selecting a row/column decoding switch. The matrix and row and column switches are integrated onto a common substrate. A programmable voltage source is coupled to the column decoding switches by the column data leads and a programmable current sink is coupled to the row decoding switches by the row data leads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.