LED and backlight module using the same

US8840262B2 · kind B2 · utility

Assignee

• ADVANCED OPTOELECTRONIC TECHNOLOGY, INC. · TW

Inventors

• CHAO-HSIUNG CHANG · Hsinchu, TW
• HOU-TE LIN · Hsinchu, TW

Key dates

• Filing date: Jul 27, 2012
• Grant date: Sep 23, 2014
• Expiry date: Jan 13, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/857

Abstract

An LED includes a base, an LED chip, a first electrode, a second electrode, an encapsulating layer, and a reflective layer. The base forms a concave recessed from a top face thereof and a recess above the concave. The reflective layer is attached on the concave. The LED chip is received in the recess and located over the reflective layer. The LED chip has a light output face facing towards the reflective layer. The encapsulating layer is filled in the recess to cover the reflective layer and encapsulate the LED chip. The reflective layer includes a first reflective layer and a second reflective layer. The first reflective layer is located at a center of the concave. The second reflective layer surrounds and connects the first reflective layer. The first reflective layer has a curvature smaller than that of the second reflective layer.