Method and device for coating with polyimide solution

摘要

A method and device for coating with polyimide solution are provided. The method includes the following steps: placing a glass substrate onto a support surface to form a face contact therebetween; heating the glass substrate to a preset coating temperature through the support surface; and coating the glass substrate with the polyimide solution. With the glass substrate heated before being coated, the polyimide solution diffusion and solvent evaporation during coating can be accelerated, which is conducive to controlling the temperature uniformity and consistency and preventing the cloud-like spots. The glass substrate in face contact with the support plate is more conducive to being fully heated, and can prevent the glass substrate from being heated non-uniformly due to the contact of the glass substrate with the supporting legs, thereby preventing the foot-like spots.

主权项

1. A method for coating with a polyimide solution, comprising the following steps:
placing a glass substrate onto a support surface to form a face contact therebetween; heating the glass substrate to a preset coating temperature through the support surface; and coating the glass substrate with the polyimide solution; wherein, the mass percentage of a solute in the polyimide solution is larger than 0% and less than 20%; and wherein, a surface of a heating liquid is used as the support surface to directly contact with the glass substrate, and the heating liquid is used to heat the glass substrate via the surface of the heating liquid.