LED LIGHT EMITTING DEVICE COMPRISING RED ORGANIC-INORGANIC COMPOSITE LIGHT EMITTING MATERIAL

摘要

The present invention relates to an LED light emitting device comprising a red organic-inorganic composite light emitting material having a composition of the following chemical formula (1): [chemical formula 1] [(A _x1,R_x2)(L)_y(X)]_n, wherein A comprises at least one metal ion or a metal compound thereof selected from the group consisting of a monovalent metal ion selected from Li, Na or K, a bivalent metal ion selected from Mg, Ca, Sr, Ba or Zn, a trivalent metal ion selected from Al or La, or a tetravalent metal ion selected from Zr or Ti; R comprises at least one selected from Eu or an Eu compound; L comprises at least one selected from aromatic compounds having at least two carboxylic acid groups; X comprises at least one selected from phenanthroline and derivatives thereof; 0≤x12; 0x2≤2; the sum of x1 and x2 is 0x₁₊x₂≤2; y is 2 or 3; and n is an integer selected from integers of 1 or more.