Photosensitive resin composition, cured film, display device, and pattern forming method

A photosensitive resin composition comprising:

• (A) a binder resin;
• (B) a photopolymerizable compound;
• (C) a photopolymerization initiator;
• (D) a coloring agent;
• and
• (E) a thermosetting compound, wherein
• the (D) coloring agent comprises (D1) a carbon black and/or an inorganic black pigment, and (D2) an organic black pigment, and wherein
• the amount of the (D1) carbon black and/or the inorganic black pigment in the total (D) coloring agent is 30% by mass or more and 65% by mass or less, and the amount of the (D2) organic black pigment is 10% by mass or more and 70% by mass or less.

A pattern forming method, comprising:

• applying a photosensitive resin composition to a substrate provided with a light-emitting element to form a coating film;
• regioselectively exposing the coating film;
• developing exposed coating film;
• and
• baking the developed coating film to obtain a cured film,
• wherein
• the photosensitive resin composition comprises:
• (A) a binder resin;
• (B) a photopolymerizable compound;
• (C) a photopolymerization initiator;
• (D) a coloring agent;
• and
• (E) a thermosetting compound, wherein
• the (D) coloring agent comprises (D1) a carbon black and/or an inorganic black pigment, and (D2) an organic black pigment, and wherein
• when the photosensitive resin composition is cured under the following conditions to obtain a cured film, T2/T1 is 0.80 or more, where T1 is a thickness of the cured film and T2 is a thickness of the cured film after immersing in propylene glycol monomethyl ether acetate for 300 seconds:
• (Conditions)
• the photosensitive resin composition is applied on a glass substrate in a thickness of 1±0.1 μm, followed by exposure at an exposure dose of 200 mJ/cm2 and further baking under conditions at 100° C. for 30 minutes to form a cured film.