Cover member, display device and method for producing cover member

Provided is a cover member having an antifouling film that is not susceptible to separation. A cover member (1) is provided with a base (10) and an antifouling film (20). The base (10) comprises a base main body (11) and a silicon oxide layer (12L1). The silicon oxide layer (12L1) is arranged on top of the base main body (11). The silicon oxide layer (12L1) constitutes the most surficial layer of the base (10). The antifouling film (20) is arranged on top of the silicon oxide layer (12L1). The antifouling film (20) contains a fluorine-containing polymer. The fluorine-containing polymer contains silicon in the main chain. The surface of the silicon oxide layer (12L1) has an arithmetic mean roughness (Ra) of 0.5 nm or less as determined according to JIS B0601-2001.