Method of manufacturing full-color organic electro-luminescent device

A method of manufacturing a full-color organic electro-luminescent device, comprising the steps of:

• patterning an indium-tin-oxide glass substrate;
• cleaning the indium-tin-oxide glass substrate;
• forming an insulation pad over the indium-tin-oxide glass substrate;
• forming a low shadow mask over the insulation pad by the first dry film photo-resist process;
• forming a high shadow mask over the insulation pad by conducting the second dry film photo-resist process;
• forming a hole-transport layer over the indium-tin-oxide glass substrate by conducting a vapor-depositing process;
• conducting three vapor-depositing processes simultaneously to form the red, the green and the blue light-emitting materials on the hole-transport layer in the same step using the low shadow mask and the high shadow mask as a barrier;
• forming an electron-transport layer over the red, the green and the blue light-emitting materials by conducting a vapor-depositing process;
• and
• forming a metal layer over the electron-transport material by conducting a vapor-depositing process.