Provided are: a coating liquid for forming a metal oxide coating film, said coating liquid being suitable for forming a metal oxide coating film that can be patterned; a metal oxide coating film that is formed using the coating liquid; and a highly reliable display device that is provided with the metal oxide coating film. This coating liquid for forming a metal oxide coating film contains metal alkoxide having a double bond in the structure, and a photosensitive polymer containing a photopolymerization initiator.
