Purplish pink light emitting diode
US6608329B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 22, 2002 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Aug 22, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8512
Abstract
The present invention of a purplish pink light emitting diode irradiates a purple light with a wavelength ranging from 405 to 430 nm of a LED chip of a light emitting diode onto a red fluorescent powder coated on the surface thereon such that the purple light excites the fluorescent powder to produce a red light with a wavelength about 650 nm. The mixture of the excited red light and the original purple light from the purple light emitting diode produces a purplish pink or pinkish red light emitting diode in a new color tone with extensive application. To use the neoteric and unique color (similar to the color of a Hello Kitty) as a backlight or for displaying or illumination on electronic merchandises, such as mobile phones, attracts the consumers of the young generation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.