LED packaging structure and packaging method

Abstract

The invention discloses an LED packaging structure. The LED packaging structure comprises a packaging main body; the packaging main body comprises a substrate and a Kovar alloy metal frame arranged above the substrate; a conductive layer is arranged on the Kovar alloy metal frame; a die bonding region is arranged on the conductive layer; the die bonding region is used for mounting an LED chip; a glass substrate is mounted on the die bonding region; the periphery of the glass substrate is covered with a protection cover; the outer surface of the glass cover is of a convex-convex structure; an edge filter and diffuser are also included in the packaging main body; and the diffuser is used for receiving light reflected from the edge filter. By virtue of the packaging structure, the LED can bequick in heat dissipation, resistant to UV radiation, resistant to high temperature, resistant to yellowing change and convenient in realization of industrialization; the excited light ray paths of the light can be consistent, so that there is no color difference or little color difference seen from each angle; the light rays emitted from the LED chip can be reflected through the conductive layerto form a reflection layer; and the protection cover adopts the concave-convex structure, so that roughening of the LED packaging body surface can be realized effectively and simply, thereby improvingthe light emitting efficiency of the efficient LED.

Description

technical field [0001] The invention relates to the field of semiconductor packaging, in particular to an LED packaging structure and a packaging method thereof. Background technique [0002] LED is called the fourth-generation lighting source or green light source. It has the characteristics of energy saving, environmental protection, long life, and small size. It is widely used in various indications, displays, decorations, backlights, general lighting, and urban night scenes. According to different functions, it can be divided into five categories: information display, signal lights, vehicle lamps, LCD backlight, and general lighting. [0003] LED products are mainly used in the three major fields of backlight, color screen and indoor lighting. In the future, under the influence of factors such as the decline in product prices caused by the continuous maturity of technology and the rise of a new round of global ban on the sale of incandescent lamps, indoor lighting will ...

AI Technical Summary

Problems solved by technology

[0004] At present, the commonly used LED packages have slow heat dissipation, are not resistant to UV radiation, are not resistant to high temperature, are easy to turn yellow, and are not convenient for industrialization.

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