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METHOD FOR MANUFACTURING ORGANIC ELECTROLUMINESCENCE DEVICE, BY APPLYING HEAT TO SUBSTRATE DURING HOLE TRANSPORT LAYER EVAPORATION OR APPLYING HEAT TO HOLE TRANSPORT LAYER AFTER DEPOSITION OF HOLE TRANSPORT LAYER AT ORDINARY TEMPERATURE SO AS TO PREVENT HOLE TRANSPORT LAYER FROM BEING CRYSTALLIZED AFTER MANUFACTURE OF DEVICE
METHOD FOR MANUFACTURING ORGANIC ELECTROLUMINESCENCE DEVICE, BY APPLYING HEAT TO SUBSTRATE DURING HOLE TRANSPORT LAYER EVAPORATION OR APPLYING HEAT TO HOLE TRANSPORT LAYER AFTER DEPOSITION OF HOLE TRANSPORT LAYER AT ORDINARY TEMPERATURE SO AS TO PREVENT HOLE TRANSPORT LAYER FROM BEING CRYSTALLIZED AFTER MANUFACTURE OF DEVICE
PURPOSE: A method is provided to achieve improved luminous efficiency by preventing layers from being separated from each other by heat during operation of an organic electroluminescence device. CONSTITUTION: A method comprises a first step of forming an anode electrode on a transparent substrate; a second step of forming a hole injection layer(114) on the anode electrode; a third step of forming a hole transport layer(116) on the hole injection layer, at the state where the transparent substrate is applied with heat having a temperature higher than the glass transition temperature of a material forming the hole transport layer and lower than an evaporation temperature; a fourth step of forming a light emitting layer(118) on the hole transport layer; a fifth step of forming an electron transport layer on the light emitting layer; a sixth step of forming an electron injection layer on the electron transport layer; and a seventh step of forming a cathode electrode on the electron injection layer.
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