Light-emitting component and its manufacturing method
US8405318B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2008 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Jan 26, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/3025
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
In a light emitting component, a resistor element is formed on the back surface of a substrate and its resistance value is adjusted to make the light intensity of a light emitting element (LED) in a predetermined range. A constant electric current circuit comprised of the resistor element and a transistor supplies the constant electric current to an LED, and the LED and the transistor are formed on a unit insulating substrate. In the case where the unit insulating substrate is rectangular in shape, one pair of opposite sides are x in length, the other pair of opposite sides are y in length and the ratio value of x/y is in the range of 1-1.25. Further, this light emitting component is provided with two resistor elements and both resistor elements are subjected to a resistor value adjustment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.