Polyimide film curing oven capable of accurately controlling temperature

Abstract

The invention discloses a polyimide film curing oven capable of accurately controlling the temperature. An air supply mechanism is located in an oven body; an air cavity is formed in the air supply mechanism; a main air inlet and an air suction outlet are formed in the side wall of the air cavity; an air suction inlet and an air blowing opening are formed in the bottom of the air cavity; an air suction channel and an air blowing channel are formed in the air cavity; two ends of the air blowing channel communicate with the main air inlet and the air blowing opening respectively; and two ends ofthe air suction channel communicate with the air suction inlet and the air suction outlet respectively. According to the optimally designed polyimide film curing oven capable of accurately controlling the temperature, the structural design is reasonable, continuous air blowing and air suction are directly carried out on the surface of a thin film through the air supply mechanism in the oven body,precise temperature control can be directly and rapidly carried out on the surface of the thin film, a solvent heated and evaporated by polyimide is rapidly taken away through air suction, the energyconsumption loss of heating and cooling is reduced, and the thin film drying efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of flexible display, in particular to an oven for curing polyimide films with precise temperature control. 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 flexible optical electronic back...

AI Technical Summary

Problems solved by technology

However, the solvent will evaporate during the heating process of the film, so that the temperature of the film surface cannot be directly and accurately adjusted through the ambient temperature in the oven, resulting in slow temperature change speed, loss of energy consumption for heating and cooling, and resulting in low production efficiency and yield of film products

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