Light-emitting device and display apparatus using the same
US6677610B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2002 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Apr 16, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/826
Abstract
A light-emitting device and a display apparatus using the light-emitting device. The light-emitting device includes a p-type or n-type substrate, at least one doped region formed on at least one surface of the substrate while being doped with a predetermined dopant to be an opposite type from that of the substrate to emit light by quantum confinement in a p-n junction between the doped region and the substrate; and an electrode formed such that the light emitted from the p-n junction of the doped region is externally emitted through both surfaces of the substrate. The light-emitting device has a higher light-emitting efficiency than porous silicon-based and nano-crystal silicon-based light-emitting devices and can externally emit the light generated from the p-n junction in two directions. All of the light emitted in two directions can be utilized, thereby maximizing light-emitting efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.