Gas supply device and drying oven for curing and rapid heating and cooling of polyimide film

Abstract

The invention discloses a gas supply device and a drying oven for curing and rapid heating and cooling of a polyimide film. The gas supply device comprises a main gas inlet pipe, a gas heater and an air mixer, wherein a part of low-temperature gas fed by the main gas inlet pipe is fed into the gas heater to be heated and then is mixed with the unheated low-temperature gas in the air mixer, and thetemperature of gas entering the drying oven is adjusted. The optimally-designed gas supply device and the drying oven for curing and rapid heating and cooling of the polyimide film are reasonable instructural design, the gas supply device is capable of realizing efficient and rapid adjustment of the temperature of air supply gas by mixing the high temperature gas and the low temperature gas, continuous air blowing and air suction are directly conducted on the surface of the film through the air supply mechanism, the precise temperature control can be directly and rapidly conducted on the surface of the film, the energy consumption losses caused by heating and cooling are reduced, and the film drying efficiency is improved.

Description

technical field [0001] The invention relates to the field of flexible display technology, in particular to an air supply device and an oven for curing a polyimide film for rapid temperature rise and fall. Background technique [0002] The rapid development of flexible AMOLED display technology has made flexible display the most advanced technology in the consumer electronics industry. Consumer electronic products such as high-end mobile phones and watches all over the world use flexible AMOLED as their display screens. The core of flexible AMOLED lies in the use of polymer plastic substrates, which need to have the characteristics of high temperature resistance, corrosion resistance, dimensional stability, high mechanical strength, and easy coating. [0003] At present, only polyimide materials can meet the above requirements. The basic processing technology is to coat polyimide slurry on optical glass, and then solidify it into a film under nitrogen protection to make a fl...

AI Technical Summary

Problems solved by technology

However, due to the large amount of temperature-controlling gas used, when the gas temperature needs to be adjusted, the adjustment efficiency through the heater is low, and the gas temperature cannot be quickly controlled, resulting in slow temperature change of the temperature-controlling gas entering the oven on the surface of the film, and energy consumption for heating and cooling. Loss, resulting in low production efficiency and yield of film products

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