TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The organic electroconductive polymer coating liquid comprises the electroconductive polymer and the dopant in 0.2-0.7 mass.%. The organic electroconductive polymer coating liquid further comprises a polyhydric alcohol; nonionic surfactant; and a fluorine-containing nonionic surfactant. Preferred Components: The electroconductive polymer includes a polythiophene (preferably poly(3,4-ethylenedioxy)thiophene). The dopant is a water-soluble polymer. The dopant includes at least one selected from polystyrene sulfonic acid or a copolymer of styrene sulfonic acid. The polyhydric alcohol is at least one selected from ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol or tetraethylene glycol. The organic electroconductive polymer film further comprises at least one of a hydroxamic acid derivative or a phosphoric acid derivative; and a dielectric layer laminated on it. EXAMPLE - To CLEVIOS PH500 (RTM: aqueous dispersion of polyethylene dioxythiophene/polystyrene sulfonic acid) (40 parts by mass), methanol (54 parts by mass) and ethylene glycol (6 parts by mass) were added, and the mixture was stirred for 30 minutes, and then was filtered. Thus, an organic electroconductive polymer coating liquid containing an electroconductive polymer and a dopant was produced. The viscosity of the coating liquid was 5.8 mPas, and the solid concentration was 0.48 mass.%. The organic electroconductive polymer coating liquid was applied on the polyethylene terephthalate (PET) film having adhesive layers laminated on it, and the film was dried on a hot plate at a surface temperature of 100 degrees C for 10 minutes, to thus produce an electroconductive polymer film. Subsequently, a coating liquid was prepared by mixing 0.2 parts by mass each of 1-hydroxyethane-1,1-diphosphonic acid and N-methyl-2-dimethylamino acetohydroxamic acid, isopropyl alcohol (9 parts by mass), and ethylene glycol (1 part by mass). This coating liquid was applied on the electroconductive polymer film, and the film was dried on a hot plate at a surface temperature of 100 degrees C for 10 minutes, and then was annealed in an oven at an in-chamber temperature of 120 degrees C. Thereby, an electroconductive polymer film having a laminate structure was obtained. The surface resistance of the electroconductive polymer film was 520 omega /sq. The value of the in-plane fluctuation of surface resistance (CV value) was 2.10% to be judged as excellent. In regard to the durability against humidity and heat, the ratio of change in surface resistance was 118%.