Light-emitting diode packaging structure and backlight module

Abstract

The invention discloses a light-emitting diode packaging structure and a backlight module. The light-emitting diode packaging structure is assembled in the backlight module of the liquid crystal display to be the backlight of the backlight module. The light-emitting diode packaging structure provides three independent LED packaging structures adjacent to each other, wherein the three LED packaging structures are used for respectively generating a red light, a green light and a blue light which can be mutually mixed into white light. The design can ensure that various colored lights can not be absorbed or scattered by fluorescent powder with other colors, therefore the light-emitting diode packaging structure is beneficial to regulating and controlling single colors, increasing the light-emitting efficiency of each colored light and enlarging the color gamut of the white light.

Description

Light emitting diode packaging structure and backlight module 【Technical field】 The present invention relates to a light-emitting diode packaging structure and a backlight module, in particular to a light-emitting diode packaging structure capable of monochromatic control and improving the luminous efficiency of each color light, and a backlight module with the light-emitting diode packaging structure. 【Background technique】 Liquid crystal displays (LCDs) have been widely used in various electronic products. Most of the LCDs are backlight LCDs, which are composed of a liquid crystal display panel and a backlight module. The backlight module can be divided into two types according to the incident position of the light source: side-light type and direct-light type, so as to provide backlight to the LCD panel, and the direct-light type backlight module The structured backlight source can be cold cathode fluorescent tube (coldcathodefluorescentlamp, CCFL), light emitting diode...

AI Technical Summary

Problems solved by technology

However, the disadvantage of the LED package structure 10 in FIG. 1A is that the white light produced by mixing blue light and excited yellow light can only exhibit about 70% of the color gamut, which cannot meet the demand for a wider color gamut.

Furthermore, the disadvantage of the LED packaging structures 11 and 12 in FIGS. 1B and 1C is that part of the red light will be absorbed or scattered by the green phosphor, resulting in insufficient luminous efficiency of the red part.

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