Organic light emitting device and method of manufacturing the same

The organic light emitting device of claim 10, wherein the alkali metal oxide is selected from the group consisting of lithium oxide (Li2O), sodium oxide (Na2O), and potassium oxide (K2O);

• the alkali earth metal oxide is selected from the group consisting of barium oxide (BaO), calcium oxide (CaO), and magnesium oxide (MgO);
• the metal sulfate is selected from the group consisting of lithium sulfate (Li2SO4), sodium sulfate (Na2SO4), calcium sulfate (CaSO4), magnesium sulfate (MgSO4), cobalt sulfate (CoSO4), gallium sulfate (Ga2(SO4)3), titanium sulfate (Ti(SO4)2), and nickel sulfate (NiSO4);
• the metal halide is selected from the group consisting of calcium chloride (CaCl2), magnesium chloride (MgCl2), strontium chloride (SrCl2), yttrium chloride (YCl2), copper chloride (CuCl2), cesium fluoride (CsF), tantalum fluoride (TaF5), niobium fluoride (NbF5), lithium bromide (LiBr), calcium bromide (CaBr3), cerium bromide (CeBr4), selenium bromide (SeBr2), vanadium bromide (VBr2), magnesium bromide (MgBr2), barium iodide (BaI2), and magnesium iodide (MgI2);
• and
• the metal perchlorate is selected from the group consisting of barium perchlorate (Ba(ClO4)2) and magnesium perchlorate (Mg(ClO4)2).

A method of manufacturing an organic light emitting device, comprising:

• preparing a substrate with an organic light emitting unit including a first electrode, an organic layer, and a second electrode sequentially layered on the substrate;
• coating at least one of an encapsulation substrate, a sealant layer, a groove portion of an etched glass substrate and an etched portion of an etched glass substrate with a composition for forming a transparent moisture absorption layer in an internal space between the substrate and the encapsulation substrate and curing the composition to obtain a transparent moisture absorption layer, the composition comprising at least one material selected from a metal oxide and a metal salt having an average particle diameter of about 100 nm or less, a binder, a light absorbing material absorbing light in a visible wavelength range, and a solvent;
• coating a sealant on an outer region of the organic light emitting unit on at least one of the substrate and the encapsulation substrate;
• and
• combining the substrate and the encapsulation substrate.