White light emitting diode and backlight module

White light emitting diode and backlight module

  • CN 107,946,434 A
  • Filed: 11/27/2017
  • Published: 04/20/2018
  • Est. Priority Date: 11/27/2017
  • Status: Active Application
First Claim
Patent Images

1. a kind of white light emitting diode, white light is sent by the mixing of blue emission light, green emitted light and red emission light;

  • It is specialSign is, including red fluorescence powder, at least a blue LED chip and an at least green light LED chip;

    The red fluorescence powder is made of the first red fluorescence powder, the second red fluorescence powder;

    First red fluorescence powder is by M2AX6;

    Mn4+The material composition of structure, wherein M are Li, Na, K, Rb, Cs;

    A for Ti, Si,Ge、


    X is F, Cl, Br;

    Ratio of second red fluorescence powder in red fluorescence powder is 0.01%-15%;

    The blue emission light is sent by blue LED chip;

    Green emitted light is sent out by green light LED chipGo out, the red emission light is by red fluorescence powder by absorbing blue light or green emission.

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