WE CLAIM:
[Claim 1]
A negative type colored photosensitive resin composition comprising an alkali-soluble
resin (A), a photo initiator (B), a photo polymerizable compound (C), and a coloring
agent (D), the alkali-soluble resin (A) containing a polyimide precursor,
polybenzoxazole precursor, and/or a copolymer thereof (A-1), each resin (A-1) having
a trifluoromethyl group in the backbone chain.
[Claim 2]
A negative type colored photosensitive resin composition as set forth in claim 1,
wherein the resin (A-1) contains a structure as represented by the undermentioned
general formula (1) as primary component:
[Chemical compound 1]
wherein R1 and R2 in general formula (1) independently denote a divalent to octavalent organic groups; R3 and R4 each denote a phenolic hydroxyl group, sulfonic acid group, thiol group, or COOR5, which may be contained singly or different ones of which coexist; R5 denotes a hydrogen atom or a monovalent hydrocarbon group having 1 to 20 carbon atoms; a and b each denote an integer of 0 to 6, where a+b > 0; n denotes the range of 5 to 10,000; and at least one of the groups represented by R1-(R3)a and those by R2-(R4)b contains a trifluoromethyl group. [Claim 3]
A negative type colored photosensitive resin composition as set forth in claim 2, wherein at least one selected from the group consisting of the groups represented by general formula (2) and those represented by general formula (3) accounts for 20 mol% to 100 mol% of the total quantity, or 100 mol%, of the diamine residues containing a group represented by R2-(R4)b in general formula (1): [Chemical compound 2]


wherein R7 to R10 in general formulae (2) and (3) each denote a single bond or a divalent organic group containing 1 to 20 carbon atoms; and p, q, r, and s each denote Oor 1. [Claim 4]
A negative type colored photosensitive resin composition as set forth in either claim 2 or 3, wherein groups as represented by general formula (4) account for 20 mol% to 100 mol% of the total quantity, or 100 mol%, of the residues of acid components containing a group represented by R1-(R3)a in general formula (1):

wherein R5 in general formula (4) denotes a hydrogen atom or COOR6, R6 denoting a
hydrogen atom or a monovalent hydrocarbon group having 1 to 20 carbon atoms.
[Claim 5]
A negative type colored photosensitive resin composition as set forth in any one of
claims 1 to 4, wherein the coloring agent (D) contains an organic pigment and/or an
inorganic pigment and turns to black when the film is cured.
[Claim 6]
A negative type colored photosensitive resin composition as set forth in claim 5,
wherein the coloring agent (D) contains a benzofuranone based black pigment and/or
a perylene based black pigment.
[Claim 7]

A negative type colored photosensitive resin composition as set forth in either claim 5
or 6 further comprising a dispersing agent (E), the dispersing agent containing a
tertiary amino group or a nitrogen-containing heterocyclic basic functional group.
[Claim 8]
A negative type colored photosensitive resin composition as set forth in any one of
claims 1 to 7 further comprising a chain transfer agent (F).
[Claim 9]
A negative type colored photosensitive resin composition as set forth in any one of
claims 2 to 8, wherein the resin (A-1) further contains an alkylene oxide group in the
backbone chain.
[Claim 10]
A negative type colored photosensitive resin composition as set forth in any one of
claims 1 to 9, wherein the alkali-soluble resin (A) further contains a radically
polymerizable monomer-based polymer, siloxane resin, and/or cardo resin.
[Claim 11]
A cured film produced from a negative type colored photosensitive resin composition
as set forth in any one of claims 1 to 10.
[Claim 12]
A cured film as set forth in claim 11 having an optical density of 0.3 or more and 3.0 or
less.
[Claim 13]
An element having a cured film as set forth in either claim 11 or 12.
[Claim 14]
An organic EL display device comprising a cured film as set forth in either claims 11 or
12 as at least one selected from the group consisting of the planarization layers on the
drive circuit and the insulation layers on the first electrode.
[Claim 15]
A production method for a cured film comprising a step for spreading a negative type
colored photosensitive resin composition as set forth in any one of claims 1 to 10 over
a substrate to form a photosensitive resin film, a step for drying the photosensitive
resin film, a step for exposing the dried photosensitive resin film to light, a step for

developing the light-exposed photosensitive resin film, and a step for heat-treating the
developed photosensitive resin film.
[Claim 16]
A production method for an organic EL display device comprising a step for forming a
cured film by a method as set forth in claim 15, the cured film designed to serve as at
least one selected from the group consisting of the planarization layers on the drive
circuit and the insulation layers on the first electrode.