LOW-DIELECTRIC BLACK POLYIMIDE FILM AND PREPARATION METHOD THEREOF
LOW-DIELECTRIC BLACK POLYIMIDE FILM AND PREPARATION METHOD THEREOF
The present invention relates to a polyimide film having transmittance of 1.0% or lower, glossiness of 50% or lower, and a dielectric loss rate of 0.01 or lower, and a preparation method thereof. The polyimide film having adjusted the type and composition ratio of dianhydride component, diamine component and carbon black has the advantage of exhibiting excellent optical properties, dielectric properties and chemical resistance.