NEGATIVE PHOTOSENSITIVE RESIN COMPOSITION, CURED FILM, ELEMENT PROVIDED WITH CURED FILM, DISPLAY DEVICE PROVIDED WITH ELEMENT, AND ORGANIC EL DISPLAY
申请人:TORAY INDUSTRIES, INC.
公开号:US20190302617A1
公开(公告)日:2019-10-03
The present invention provides a negative photosensitive resin composition that has high pigment dispersibility and stability and can reduce residues of unexposed portions during development. The present invention provides
a negative photosensitive resin composition containing an (A) alkali-soluble resin, a (B) dispersant having an amine value exceeding 0, a (C) benzofuranone based organic pigment having an amide structure, a (D) radical polymerizable compound, and a (E) photoinitiator. In this negative photosensitive resin composition, the (A) alkali-soluble resin contains
one or more selected from the group consisting of a (A1) polyimide, a (A2) polyimide precursor, a (A3) polybenzoxazole, and a (A4) polybenzoxazole precursor, and the (B) dispersant having an amine value exceeding 0 contains a (B1) dispersant including a repeating unit represented by general formula (2) and a repeating unit represented by general formula (3) and a (B2) dispersant that is an acrylic block copolymer having an amine value of 15 to 60 mgKOH/g and/or a (B3) dispersant having a urethane bond.
(In general formula (2), R
1
represents an alkylene group. R
2
and R
3
, which may be the same or different, each represents hydrogen, an alkyl group or a hydroxyl group. x represents an integer of 0 to 20. However, when x is 0, at least one of R
2
and R
3
is an alkyl group. m represents an integer of 1 to 100. In general formula (3), n represents an integer of 1 to 100.)
本发明提供了一种具有高颜料分散性和稳定性的负性感光树脂组合物,可以减少在显影过程中未曝光部分的残留物。本发明提供了一种包含(A)可溶于碱性树脂、(B)胺值超过0的分散剂、(C)苯并呋喃酮基有机颜料(具有酰胺结构)、(D)自由基聚合化合物和(E)光引发剂的负性感光树脂组合物。在这种负性感光树脂组合物中,(A)可溶于碱性树脂包含从以下组中选择的一种或多种:(A1)聚酰亚胺、(A2)聚酰亚胺前体、(A3)聚苯并噁唑和(A4)聚苯并噁唑前体;而具有胺值超过0的(B)分散剂包括具有由通用公式(2)表示的重复单元和由通用公式(3)表示的重复单元的(B1)分散剂,以及胺值为15至60 mgKOH/g的丙烯酸酯嵌段共聚物(B2)和/或具有脲键的(B3)分散剂。(在通用公式(2)中,R1表示烷基基团。R2和R3,可能相同也可能不同,每个表示氢、烷基基团或羟基。x表示0到20的整数。但是,当x为0时,R2和R3中至少有一个是烷基基团。m表示1到100的整数。在通用公式(3)中,n表示1到100的整数。)