sip high voltage high display LED light source module

Abstract

The invention discloses an SIP (system in package) high-voltage high-color-rendering LED light source module comprising a fluorescent glue layer, a light-emitting chip, a dam glue layer, an LED ceramic bottom plate, a rectifying and constant-current unit and a chip electrode pad. The rectifying and constant-current unit converts alternating current into constant-voltage direct current. The light-emitting chip is fixed to a light-emitting area of the LED ceramic bottom plate. The dam glue layer is fixed around the light-emitting chip. The fluorescent glue layer is applied to the upper surface of the light-emitting chip. The chip electrode pad is fixed to the light-emitting area of the LED ceramic bottom plate. The rectifying and constant-current unit is fixed outside the LED ceramic bottom plate. One end of the rectifying and constant-current unit is given alternating current; the other end of the rectifying and constant-current unit converts the direct current into constant direct current supplied to the chip electrode pad. The SIP high-voltage high-color-rendering LED light source module can be directly driven with high-voltage alternating current 220V and is very convenient to mount and simple to use. A wafer diode is used as a rectifier bridge; a wafer IC (integrated circuit) is processed the rectified current into constant current, and current required by the LEDs to emit light is guaranteed.

Description

technical field [0001] The invention relates to the technical field of LED lighting light source modules, in particular to a SIP high-voltage high-display LED light source module. Background technique [0002] Today's LED light source module technology requires an external driving power supply, which greatly reduces the appearance design and overall visual effect of the finished product. [0003] In the current products, the color rendering index of white light excited by blue light and YAG / TAG / nitride and other series of phosphors is relatively low. Although red powder or green powder of nitride can be used to compensate each other, the blue light of 450-460nm is in the 620-650nm red powder or 518-540nm green powder has a very small luminous peak wavelength excitation value (transmittance or neutralization rate), resulting in low brightness of the product and a large light decay during use. The blue LED is used to simultaneously excite two kinds of yellow and red phosphors...

AI Technical Summary

Problems solved by technology

But its disadvantage is that at present, the quantum efficiency of red phosphor is relatively low, resulting in low luminous efficiency of the whole device. After adding red phosphor, the luminous efficiency of the device is almost reduced by half.

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