Organic light emitting diode device encapsulation drying agent and encapsulation application method thereof

The invention relates to the field of organic light emitting diode device encapsulation and provides an organic light emitting diode device encapsulation drying agent and an encapsulation application method thereof. The drying agent is characterized by comprising, by weight, 4-7 parts of chloride, nano calcium oxide microcrystal, and 15-70 parts of film forming agent. The molar ratio of the chloride to the nano calcium oxide microcrystal is 1:1-10. When the drying agent is used for encapsulating an OLED device, the drying agent is dissolved by ketone or alcohol to form coating liquid, the coating liquid is used to coat the inner surface of the cover plate of the OLED device in a spun manner, and film thickness is 2-10 micrometers. Compared with traditional drying pieces, the drying agent and the coating liquid thereof are simple to operate, convenient to prepare, cheap in raw material, easy in raw material acquiring, convenient to store and good in stability. Compared with other thin film drying agent, the drying agent and the coating liquid thereof has the advantages that the nano calcium oxide particles are doped in the coating liquid, specific surface area is increased, moisture absorption capability is increased, and good drying effect is achieved.