TW202127141A - Colored photosensitive resin composition - Google Patents

Colored photosensitive resin composition Download PDF

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TW202127141A
TW202127141A TW110109077A TW110109077A TW202127141A TW 202127141 A TW202127141 A TW 202127141A TW 110109077 A TW110109077 A TW 110109077A TW 110109077 A TW110109077 A TW 110109077A TW 202127141 A TW202127141 A TW 202127141A
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meth
mass
acrylate
pigment
resin composition
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TW110109077A
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Chinese (zh)
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松浦龍一
寺川貴清
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日商住友化學股份有限公司
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Publication of TW202127141A publication Critical patent/TW202127141A/en

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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004Photosensitive materials
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/20Filters
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133514Colour filters
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004Photosensitive materials
    • G03F7/027Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials For Photolithography (AREA)
  • Optical Filters (AREA)
  • Liquid Crystal (AREA)

Abstract

The object of the present invention is to obtain a colored photosensitive resin composition, which provides a highly fine color filter having excellent brightness and developing property without performing a film thickening process. The colored photosensitive resin composition of the present invention is characterized in that: it comprises a colorant (A), a resin (B), a polymerizable compound (C) and a polymerizing initiator (D), and it uses C.I. Pigment Blue 15:3 or C.I. Pigment Blue 15:4, C.I. Pigment Green 58 and C.I. Pigment Yellow 138 as the colorant (A).

Description

著色感光性樹脂組合物Colored photosensitive resin composition

本發明係關於一種著色感光性樹脂組合物。The present invention relates to a colored photosensitive resin composition.

著色感光性樹脂組合物係用於液晶顯示面板等顯示裝置中之彩色濾光片製造用。近年來,為了擴大顯示器可顯示之色彩再現區域而正在進行開發,作為其一環,亦要求彩色濾光片之顏色更濃。為了滿足該要求,可列舉提高彩色濾光片中之色料濃度之方法,但若色料濃度上升,則圖案形狀劣化等,作為感光性樹脂組合物之性能劣化,故而欠佳。又,為了具有目標顏色特性,必須以厚膜之方式製作彩色濾光片,但於應用於液晶顯示裝置之情形時,產生與鄰接像素之光之混色,因此厚膜化亦欠佳。 於專利文獻1中,為了設計濃色之綠色彩色濾光片而記載有如下綠色感光性樹脂組合物,其包含:含有C.I.顏料綠58、C.I.顏料藍15:3及C.I.顏料黃150等之著色劑,樹脂,聚合性單體,光聚合起始劑及溶劑。 [先前技術文獻] [專利文獻] [專利文獻1]日本專利特開2012-247539號公報The colored photosensitive resin composition is used for the production of color filters in display devices such as liquid crystal display panels. In recent years, in order to expand the displayable color reproduction area of the display, development is being carried out. As part of this, the color filter is also required to be denser. In order to meet this requirement, a method of increasing the color material concentration in the color filter can be cited. However, if the color material concentration increases, the pattern shape deteriorates, and the performance as a photosensitive resin composition deteriorates, which is not good. In addition, in order to have the target color characteristics, the color filter must be made by a thick film method. However, when applied to a liquid crystal display device, color mixing with the light of adjacent pixels occurs, so the thick film is not good. In Patent Document 1, in order to design a dense green color filter, the following green photosensitive resin composition is described, which includes a coloring containing CI Pigment Green 58, CI Pigment Blue 15:3, CI Pigment Yellow 150, etc. Agents, resins, polymerizable monomers, photopolymerization initiators and solvents. [Prior Technical Literature] [Patent Literature] [Patent Document 1] Japanese Patent Laid-Open No. 2012-247539

[發明所欲解決之問題] 本發明之目的在於獲得一種著色感光性樹脂組合物,其可獲得即便不進行厚膜化亦亮度或顯影性優異之高精細彩色濾光片。 [解決問題之技術手段] 本發明包含以下之發明。 [1]一種著色感光性樹脂組合物,其包含著色劑(A)、樹脂(B)、聚合性化合物(C)及聚合起始劑(D),且包含C.I.顏料藍15:3或C.I.顏料藍15:4、C.I.顏料綠58、及C.I.顏料黃138作為著色劑(A)。 [2]一種塗膜,其係由如[1]記載之著色感光性樹脂組合物所形成。 [3]一種彩色濾光片,其係由如[1]記載之著色感光性樹脂組合物所形成。 [4]一種顯示裝置,其包含如[3]記載之彩色濾光片。 [發明之效果] 根據本發明,可製造在適當之膜厚內、顯影性良好且亮度較高之高精細彩色濾光片。[The problem to be solved by the invention] The object of the present invention is to obtain a colored photosensitive resin composition, which can obtain a high-definition color filter excellent in brightness and developability even if the film is not thickened. [Technical means to solve the problem] The present invention includes the following inventions. [1] A colored photosensitive resin composition comprising a colorant (A), a resin (B), a polymerizable compound (C) and a polymerization initiator (D), and comprising CI Pigment Blue 15:3 or CI Pigment Blue 15:4, CI Pigment Green 58, and CI Pigment Yellow 138 were used as colorants (A). [2] A coating film formed of the colored photosensitive resin composition as described in [1]. [3] A color filter formed of the colored photosensitive resin composition as described in [1]. [4] A display device comprising the color filter as described in [3]. [Effects of Invention] According to the present invention, a high-definition color filter with a suitable film thickness, good developability and high brightness can be manufactured.

本發明之著色感光性樹脂組合物包含著色劑(A)、樹脂(B)、聚合性化合物(C)及聚合起始劑(D)。 本發明之著色感光性樹脂組合物較佳為進而包含溶劑(E)。 本發明之著色感光性樹脂組合物亦可進而包含選自由調平劑(F)及硫醇化合物所組成之群中之至少1種。 關於本說明書中作為各成分而例示之化合物,只要無特別說明,則可單獨使用或組合使用複數種。 <著色劑(A)> 本發明之著色感光性樹脂組合物中,作為著色劑(A),包含C.I.顏料綠(以下有稱為「PG」之情形)58及C.I.顏料黃(以下,有稱為「PY」之情形)138,進而包含選自C.I.顏料藍(以下有稱為「PB」之情形)15:3、C.I.顏料藍15:4中之酞菁銅化合物。 其中,較佳為包含PG58、PY138、及PB15:3作為著色劑(A)。 於著色劑(A)中,PG58之含量較佳為15質量%以上,更佳為20質量%以上,進而較佳為25質量%以上,且較佳為90質量%以下,更佳為85質量%以下,進而較佳為80質量%以下。 又,於著色劑(A)中,PY138之含量較佳為10質量%以上,更佳為15質量%以上,進而較佳為20質量%以上,且較佳為80質量%以下,更佳為75質量%以下,進而較佳為70質量%以下。 於著色劑(A)中,PB15:3或PB15:4之含量較佳為0.1質量%以上,更佳為0.5質量%以上,進而較佳為1質量%以上,且較佳為12質量%以下,更佳為10質量%以下,進而較佳為9質量%以下。 又,相對於PG58與PY138之合計100質量份,PB15:3或PB15:4之含量較佳為0.1質量份以上且30質量份以下,更佳為0.5質量份以上且20質量份以下,進而較佳為0.8質量份以上且12質量份以下。 相對於組合物中之固形物成分之總量100質量份,PB15:3或PB15:4之含量通常為0.1~15質量份,較佳為0.3~10質量份,更佳為0.5~5質量份。 相對於著色感光性樹脂組合物之固形物成分之總量100質量份,著色劑(A)之合計量通常為10~50質量份,就設計濃色之彩色濾光片之觀點而言,較佳為30~48質量份。 此處,本說明書中所謂「固形物成分之總量」,係指自著色感光性樹脂組合物之總量中去掉溶劑之含量所得之量。固形物成分之總量及各成分相對於其之含量例如可利用液相層析法或氣相層析法等公知之分析手段進行測定。 亦可進而包含PG58、PY138、PB15:3、及PB15:4以外之顏料(A2)作為作為著色劑(A)。作為上述顏料(A2),例如可列舉以色度指數(The Society of Dyers and Colourists出版)而被分類為顏料之顏料。 作為顏料(A2),例如可列舉:C.I.顏料黃1、3、12、13、14、15、16、17、20、24、31、53、83、86、93、94、109、110、117、125、128、129、137、139、147、148、153、154、166、173、194、214等黃色顏料; C.I.顏料橙13、31、36、38、40、42、43、51、55、59、61、64、65、71、73等橙色顏料; C.I.顏料綠7、36等綠色顏料等。 於包含顏料(A2)之情形時,於著色劑(A)中,其含量較佳為0.1質量%以上且40質量%以下,更佳為0.5質量%以上且30質量%以下,進而較佳為1質量%以上且20質量%以下。 關於著色劑(A)與下述樹脂(B)之含量比(著色劑(A)/樹脂(B)),例如以質量基準計而較佳為1.3以上,更佳為1.5以上,進而較佳為1.7以上,且較佳為4.00以下,更佳為3.00以下,進而較佳為2.50以下。 又,於本發明中,著色劑(A)所包含之PG58、PY138、PB15:3、PB15:4之合計含量於著色劑(A)中較佳為80質量%以上,更佳為90質量%以上,進而較佳為95質量%以上,尤佳為98質量%以上,最佳為100質量%。藉由將著色劑(A)設為特定顏料之組合,可使所獲得之彩色濾光片有效地發揮亮度特性。 PG58、PY138、PB15:3、PB15:4或顏料(A2)視需要亦可實施以下處理:松香處理、使用導入有酸性基或鹼性基之顏料衍生物等之表面處理、利用高分子化合物等之對顏料表面之接枝處理、利用硫酸微粒化法等之微粒化處理、或用以去除雜質之利用有機溶劑或水等之洗淨處理、利用離子交換法等之離子性雜質之去除處理等。 顏料較佳為粒徑均勻。藉由含有顏料分散劑進行分散處理,可獲得顏料於溶液中均勻地分散之狀態之顏料分散液。 作為上述顏料分散劑,例如可列舉界面活性劑,亦可為陽離子系、陰離子系、非離子系及兩性中之任一種界面活性劑。具體而言可列舉:聚酯系、聚胺系、丙烯酸系等界面活性劑等。該等顏料分散劑可單獨使用,亦可組合使用2種以上。作為顏料分散劑,以商品名可列舉:KP(信越化學工業(股)製造)、Flowlen(共榮社化學(股)製造)、Solsperse(註冊商標)(Zeneca(股)製造)、EFKA(註冊商標)(BASF公司製造)、Ajisper(註冊商標)(Ajinomoto Fine-Techno(股)製造)、Disperbyk(註冊商標)(BYK-Chemie公司製造)等。 於使用顏料分散劑之情形時,相對於上述PG58、PY138、PB15:3、PB15:4及顏料(A2)之總量,其使用量較佳為1質量%以上且100質量%以下,更佳為5質量%以上且50質量%以下。若顏料分散劑之使用量處於上述範圍內,則存在可獲得均勻之分散狀態之顏料分散液之傾向。 <樹脂(B)> 作為樹脂(B),並無特別限定,較佳為鹼溶性樹脂,更佳為具有源自選自由不飽和羧酸及不飽和羧酸酐所組成之群中之至少1種之結構單元的聚合物。作為樹脂(B),可列舉以下之樹脂[K1]~[K6]等。 樹脂[K1]選自由不飽和羧酸及不飽和羧酸酐所組成之群中之至少1種(a)(以下有稱為「(a)」之情形)、與具有碳數2~4之環狀醚結構與乙烯性不飽和鍵之單體(b)(以下有稱為「(b)」之情形)之共聚物。 樹脂[K2](a)與(b)與可和(a)共聚合之單體(c)(其中,與(a)及(b)不同)(以下有稱為「(c)」之情形)之共聚物。 樹脂[K3](a)與(c)之共聚物。 樹脂[K4]使(b)與(a)和(c)之共聚物反應而獲得之樹脂。 樹脂[K5]使(a)與(b)和(c)之共聚物反應而獲得之樹脂。 樹脂[K6]使(a)與(b)和(c)之共聚物反應,進而使羧酸酐反應而獲得之樹脂。 作為(a),具體而言,例如可列舉:丙烯酸、甲基丙烯酸、丁烯酸、鄰乙烯基苯甲酸、間乙烯基苯甲酸、對乙烯基苯甲酸等不飽和單羧酸類; 馬來酸、富馬酸、檸康酸、中康酸、伊康酸、3-乙烯基鄰苯二甲酸、4-乙烯基鄰苯二甲酸、3,4,5,6-四氫鄰苯二甲酸、1,2,3,6-四氫鄰苯二甲酸、二甲基四氫鄰苯二甲酸、1,4-環己烯二羧酸等不飽和二羧酸類; 甲基-5-降

Figure 110109077-A0304-12-01
烯-2,3-二羧酸、5-羧基二環[2.2.1]庚-2-烯、5,6-二羧基二環[2.2.1]庚-2-烯、5-羧基-5-甲基二環[2.2.1]庚-2-烯、5-羧基-5-乙基二環[2.2.1]庚-2-烯、5-羧基-6-甲基二環[2.2.1]庚-2-烯、5-羧基-6-乙基二環[2.2.1]庚-2-烯等含有羧基之二環不飽和化合物類; 馬來酸酐、檸康酸酐、伊康酸酐、3-乙烯基鄰苯二甲酸酐、4-乙烯基鄰苯二甲酸酐、3,4,5,6-四氫鄰苯二甲酸酐、1,2,3,6-四氫鄰苯二甲酸酐、二甲基四氫鄰苯二甲酸酐、5,6-二羧基二環[2.2.1]庚-2-烯酐(雙環庚烯二甲酸酐)等不飽和二羧酸酐類; 琥珀酸單[2-(甲基)丙烯醯氧基乙基]酯、鄰苯二甲酸單[2-(甲基)丙烯醯氧基乙基]酯等2元以上之多元羧酸之不飽和單[(甲基)丙烯醯氧基烷基]酯類; 如α-(羥甲基)丙烯酸般之於同一分子中含有羥基及羧基之不飽和丙烯酸等。 該等中,就共聚合反應性之方面或所獲得之樹脂於鹼性水溶液中之溶解性之方面而言,較佳為丙烯酸、甲基丙烯酸、馬來酸酐等。 (b)例如係指具有碳數2~4之環狀醚結構(例如選自由氧雜環丙烷環、氧雜環丁烷環及四氫呋喃環(氧雜環戊烷環)所組成之群中之至少1種)與乙烯性不飽和鍵之聚合性化合物。(b)較佳為具有碳數2~4之環狀醚與(甲基)丙烯醯氧基之單體。 再者,於本說明書中,所謂「(甲基)丙烯酸」,表示選自由丙烯酸及甲基丙烯酸所組成之群中之至少1種。「(甲基)丙烯醯基」及「(甲基)丙烯酸酯」等表述亦具有相同之含義。 作為(b),例如可列舉:具有氧雜環丙基與乙烯性不飽和鍵之單體(b1)(以下有稱為「(b1)」之情形)、具有氧雜環丁基與乙烯性不飽和鍵之單體(b2)(以下有稱為「(b2)」之情形)、具有四氫呋喃基與乙烯性不飽和鍵之單體(b3)(以下有稱為「(b3)」之情形)等。 (b1)例如可列舉:具有將直鏈狀或分支鏈狀之不飽和脂肪族烴加以環氧化而成之結構之單體(b1-1)(以下有稱為「(b1-1)」之情形)、具有將不飽和脂環式烴加以環氧化而成之結構之單體(b1-2)(以下有稱為「(b1-2)」之情形)。 作為(b1-1),較佳為具有縮水甘油基與乙烯性不飽和鍵之單體。具體而言可列舉:(甲基)丙烯酸縮水甘油酯、(甲基)丙烯酸β-甲基縮水甘油酯、(甲基)丙烯酸β-乙基縮水甘油酯、縮水甘油基乙烯醚、鄰乙烯基苄基縮水甘油醚、間乙烯基苄基縮水甘油醚、對乙烯基苄基縮水甘油醚、α-甲基-鄰乙烯基苄基縮水甘油醚、α-甲基-間乙烯基苄基縮水甘油醚、α-甲基-對乙烯基苄基縮水甘油醚、2,3-雙(縮水甘油氧基甲基)苯乙烯、2,4-雙(縮水甘油氧基甲基)苯乙烯、2,5-雙(縮水甘油氧基甲基)苯乙烯、2,6-雙(縮水甘油氧基甲基)苯乙烯、2,3,4-三(縮水甘油氧基甲基)苯乙烯、2,3,5-三(縮水甘油氧基甲基)苯乙烯、2,3,6-三(縮水甘油氧基甲基)苯乙烯、3,4,5-三(縮水甘油氧基甲基)苯乙烯、2,4,6-三(縮水甘油氧基甲基)苯乙烯等。 作為(b1-2),可列舉:一氧化環己烯乙烯、1,2-環氧-4-乙烯基環己烷(例如Celloxide(註冊商標)2000;Daicel化學工業(股)製造)、(甲基)丙烯酸3,4-環氧環己基甲酯(例如Cyclomer(註冊商標)A400;Daicel化學工業(股)製造)、(甲基)丙烯酸3,4-環氧環己基甲酯(例如Cyclomer M100;Daicel化學工業(股)製造)、式(I)所表示之化合物及式(II)所表示之化合物等。 [化1]
Figure 02_image001
[式(I)及式(II)中,Ra 及Rb 彼此獨立地表示氫原子、或碳數1~4之烷基,該烷基所含之氫原子亦可經羥基取代。 X1 及X2 彼此獨立地表示單鍵、*-Rc -、*-Rc -O-、*-Rc -S-、*-Rc -NH-。 Rc 表示碳數1~6之烷二基。 *表示與O之結合鍵]。 作為Ra 、Rb 之碳數1~4之烷基,可列舉:甲基、乙基、正丙基、異丙基、正丁基、第二丁基、第三丁基等。 作為Ra 、Rb 之氫原子經羥基取代之烷基,可列舉:羥基甲基、1-羥基乙基、2-羥基乙基、1-羥基丙基、2-羥基丙基、3-羥基丙基、1-羥基-1-甲基乙基、2-羥基-1-甲基乙基、1-羥基丁基、2-羥基丁基、3-羥基丁基、4-羥基丁基等。 作為Ra 及Rb ,較佳為氫原子、碳數1~4之烷基、或碳數1~4之羥基烷基,更佳為氫原子、或碳數1~4之烷基,具體而言,較佳可列舉氫原子、甲基、乙基、羥基甲基、1-羥基乙基、2-羥基乙基,更佳可列舉氫原子、甲基。 作為Rc 之烷二基,可列舉直鏈狀或分支鏈狀之烷二基,具體而言可列舉:亞甲基、伸乙基、丙烷-1,3-二基、丁烷-1,4-二基、戊烷-1,5-二基、己烷-1,6-二基等直鏈狀烷二基;丙烷-1,2-二基等分支鏈狀烷二基等。 作為X1 及X2 ,較佳為單鍵、*-Rc -、或*-Rc -O-,更佳為單鍵、或*-Rc -O-,具體而言,較佳可列舉單鍵、亞甲基、伸乙基、*-CH2 -O-(*表示與O之結合鍵)基、*-CH2 CH2 -O-基,更佳可列舉單鍵、*-CH2 CH2 -O-基。 作為式(I)所表示之化合物,可列舉式(I-1)~式(I-15)所表示之化合物等。較佳可列舉式(I-1)、式(I-3)、式(I-5)、式(I-7)、式(I-9)、式(I-11)~式(I-15)。更佳可列舉式(I-1)、式(I-7)、式(I-9)、式(I-15)。 [化2]
Figure 02_image003
[化3]
Figure 02_image005
作為式(II)所表示之化合物,可列舉式(II-1)~式(II-15)所表示之化合物等。較佳可列舉式(II-1)、式(II-3)、式(II-5)、式(II-7)、式(II-9)、式(II-11)~式(II-15)。更佳可列舉式(II-1)、式(II-7)、式(II-9)、式(II-15)。 [化4]
Figure 02_image007
[化5]
Figure 02_image009
式(I)所表示之化合物及式(II)所表示之化合物可分別單獨使用。又,可將該等以任意之比率混合。於混合之情形時,其混合比率以莫耳比計,較佳為式(I):式(II)為5:95~95:5,更佳為10:90~90:10,進而較佳為20:80~80:20。 作為具有氧雜環丁基與乙烯性不飽和鍵之單體(b2),更佳為具有氧雜環丁基與(甲基)丙烯醯氧基之單體。作為(b2),可列舉:3-甲基-3-甲基丙烯醯氧基甲基氧雜環丁烷、3-甲基-3-丙烯醯氧基甲基氧雜環丁烷、3-乙基-3-甲基丙烯醯氧基甲基氧雜環丁烷、3-乙基-3-丙烯醯氧基甲基氧雜環丁烷、3-甲基-3-甲基丙烯醯氧基乙基氧雜環丁烷、3-甲基-3-丙烯醯氧基乙基氧雜環丁烷、3-乙基-3-甲基丙烯醯氧基乙基氧雜環丁烷、3-乙基-3-丙烯醯氧基乙基氧雜環丁烷等。 作為具有四氫呋喃基與乙烯性不飽和鍵之單體(b3),更佳為具有四氫呋喃基與(甲基)丙烯醯氧基之單體。作為(b3),具體而言可列舉:丙烯酸四氫糠酯(例如Viscoat V#150,大阪有機化學工業(股)製造)、甲基丙烯酸四氫糠酯等。 作為(b),就可更為提高所獲得之彩色濾光片之耐熱性、耐化學品性等可靠性之方面而言,較佳為(b1)。進而,就著色感光性樹脂組合物之保存穩定性優異之方面而言,更佳為(b1-2)。 作為(c),例如可列舉:(甲基)丙烯酸甲酯、(甲基)丙烯酸乙酯、(甲基)丙烯酸正丁酯、(甲基)丙烯酸第二丁酯、(甲基)丙烯酸第三丁酯、(甲基)丙烯酸2-乙基己酯、(甲基)丙烯酸十二烷基酯、(甲基)丙烯酸月桂酯、(甲基)丙烯酸硬脂酯、(甲基)丙烯酸環戊酯、(甲基)丙烯酸環己酯、(甲基)丙烯酸2-甲基環己酯、(甲基)丙烯酸三環[5.2.1.02,6 ]癸烷-8-基酯(於該技術領域中,以慣用名而稱為「(甲基)丙烯酸雙環戊酯」。又,有稱為「(甲基)丙烯酸三環癸酯」之情形)、(甲基)丙烯酸三環[5.2.1.02,6 ]癸烯-8-基酯(於該技術領域中,以慣用名而稱為「(甲基)丙烯酸雙環戊烯酯」)、(甲基)丙烯酸雙環戊氧基乙酯、(甲基)丙烯酸異
Figure 110109077-A0304-12-01
基酯、(甲基)丙烯酸金剛烷酯、(甲基)丙烯酸烯丙酯、(甲基)丙烯酸炔丙酯、(甲基)丙烯酸苯酯、(甲基)丙烯酸萘酯、(甲基)丙烯酸苄酯等(甲基)丙烯酸酯類; (甲基)丙烯酸2-羥基乙酯、(甲基)丙烯酸2-羥基丙酯等含羥基之(甲基)丙烯酸酯類; 馬來酸二乙酯、富馬酸二乙酯、伊康酸二乙酯等二羧酸二酯; 二環[2.2.1]庚-2-烯、5-甲基二環[2.2.1]庚-2-烯、5-乙基二環[2.2.1]庚-2-烯、5-羥基二環[2.2.1]庚-2-烯、5-羥基甲基二環[2.2.1]庚-2-烯、5-(2'-羥基乙基)二環[2.2.1]庚-2-烯、5-甲氧基二環[2.2.1]庚-2-烯、5-乙氧基二環[2.2.1]庚-2-烯、5,6-二羥基二環[2.2.1]庚-2-烯、5,6-二(羥基甲基)二環[2.2.1]庚-2-烯、5,6-二(2'-羥基乙基)二環[2.2.1]庚-2-烯、5,6-二甲氧基二環[2.2.1]庚-2-烯、5,6-二乙氧基二環[2.2.1]庚-2-烯、5-羥基-5-甲基二環[2.2.1]庚-2-烯、5-羥基-5-乙基二環[2.2.1]庚-2-烯、5-羥基甲基-5-甲基二環[2.2.1]庚-2-烯、5-第三丁氧基羰基二環[2.2.1]庚-2-烯、5-環己氧基羰基二環[2.2.1]庚-2-烯、5-苯氧基羰基二環[2.2.1]庚-2-烯、5,6-雙(第三丁氧基羰基)二環[2.2.1]庚-2-烯、5,6-雙(環己氧基羰基)二環[2.2.1]庚-2-烯等二環不飽和化合物類; N-苯基馬來醯亞胺、N-環己基馬來醯亞胺、N-苄基馬來醯亞胺、N-丁二醯亞胺基-3-馬來醯亞胺苯甲酸酯、N-丁二醯亞胺基-4-馬來醯亞胺丁酸酯、N-丁二醯亞胺基-6-馬來醯亞胺己酸酯、N-丁二醯亞胺基-3-馬來醯亞胺丙酸酯、N-(9-吖啶基)馬來醯亞胺等二羰基醯亞胺衍生物類; 苯乙烯、α-甲基苯乙烯、間甲基苯乙烯、對甲基苯乙烯、乙烯基甲苯、對甲氧基苯乙烯等含乙烯基之芳香族化合物;丙烯腈、甲基丙烯腈等含乙烯基之腈;氯乙烯、偏二氯乙烯等鹵化烴;丙烯醯胺、甲基丙烯醯胺等含乙烯基之醯胺;乙酸乙烯酯;1,3-丁二烯、異戊二烯、2,3-二甲基-1,3-丁二烯等二烯等。 該等中,作為(c),就共聚合反應性及耐熱性之方面而言,較佳為(甲基)丙烯酸酯、含乙烯基之芳香族化合物、二羰基醯亞胺衍生物類、二環不飽和化合物類。具體而言,較佳為(甲基)丙烯酸苄酯、(甲基)丙烯酸三環癸酯、苯乙烯、N-苯基馬來醯亞胺、N-環己基馬來醯亞胺、N-苄基馬來醯亞胺、二環[2.2.1]庚-2-烯等。又,就圖案形成時之顯影性優異之方面而言,更佳為(甲基)丙烯酸苄酯、(甲基)丙烯酸三環癸酯。 樹脂[K1]中,關於源自(a)及(b)之結構單元之比率,較佳為於構成樹脂[K1]之所有結構單元中處於以下範圍內。 源自(a)之結構單元;2~50莫耳%(更佳為10~45莫耳%) 源自(b)之結構單元;50~98莫耳%(更佳為55~90莫耳%) 若樹脂[K1]之結構單元之比率處於上述範圍內,則存在保存穩定性、顯影性、所獲得之圖案之耐溶劑性優異之傾向。 樹脂[K1]例如可參考文獻「高分子合成之實驗法」(大津隆行著 發行單位 化學同人(股) 第1版第1印 1972年3月1日發行)所記載之方法及該文獻中記載之引用文獻而製造。 具體而言,可列舉如下方法:將(a)及(b)之特定量、聚合起始劑及溶劑等添加於反應容器中,於脫氧環境下進行攪拌、加熱、保溫。再者,此處所使用之聚合起始劑及溶劑等並無特別限定,可使用該領域中通常所使用之任意者。例如作為聚合起始劑,可列舉偶氮化合物(2,2'-偶氮二異丁腈、2,2'-偶氮二(2,4-二甲基戊腈)等)或有機過氧化物(過氧化苯甲醯等),作為溶劑,只要將各單體溶解即可,可使用下文中作為著色感光性樹脂組合物之溶劑而描述之溶劑(E)等。 再者,所獲得之共聚物可直接使用反應後之溶液,亦可使用經濃縮或稀釋之溶液,亦可使用藉由再沈澱等方法以固體(粉體)之形式取出者。尤其藉由於該聚合時使用下述溶劑(E)作為溶劑,可直接使用反應後之溶液,從而可使製造步驟簡化。 樹脂[K2]中,關於源自(a)、(b)及(c)之結構單元之比率,較佳為於構成樹脂[K2]之所有結構單元中處於以下範圍內。 源自(a)之結構單元;4~45莫耳%(更佳為10~30莫耳%) 源自(b)之結構單元;2~95莫耳%(更佳為5~80莫耳%) 源自(c)之結構單元;1~65莫耳%(更佳為5~60莫耳%) 若樹脂[K2]之結構單元之比率處於上述範圍內,則存在保存穩定性、顯影性、所獲得之圖案之耐溶劑性、耐熱性及機械強度優異之傾向。 樹脂[K2]例如可與作為樹脂[K1]之製造方法所記載之方同樣地製造。 具體而言可列舉如下方法:將(a)、(b)及(c)之特定量、聚合起始劑及溶劑添加於反應容器中,於脫氧環境下進行攪拌、加熱、保溫。所獲得之共聚物可直接使用反應後之溶液,亦可使用經濃縮或稀釋之溶液,亦可使用藉由再沈澱等方法以固體(粉體)之形式取出者。 樹脂[K3]中,關於源自(a)、(c)之結構單元之比率,較佳為於構成樹脂[K3]之所有結構單元中處於以下範圍內。 (a)2~55莫耳%,更佳為10~50莫耳% (c)45~98莫耳%,更佳為50~90莫耳% 樹脂[K3]例如可與作為樹脂[K1]之製造方法所記載之方法同樣地製造。 樹脂[K4]可藉由如下方式製造:獲得(a)與(c)之共聚物,使(b)所具有之碳數2~4之環狀醚加成於(a)所具有之羧酸及/或羧酸酐上。 首先,與作為樹脂[K1]之製造方法所記載之方法同樣地製造(a)與(c)之共聚物。於該情形時,關於源自(a)及(c)之結構單元之比率,較佳為於構成(a)與(c)之共聚物之所有結構單元中處於以下範圍內。 (a)5~50莫耳%,更佳為10~45莫耳% (c)50~95莫耳%,更佳為55~90莫耳% 繼而,使(b)所具有之碳數2~4之環狀醚與上述共聚物中之源自(a)之羧酸及/或羧酸酐之一部分反應。 製造(a)與(c)之共聚物後,將燒瓶內環境由氮氣置換為空氣,將(b)、羧酸或羧酸酐與環狀醚之反應觸媒(例如三(二甲基胺基甲基)苯酚等)及聚合抑制劑(例如對苯二酚等)等裝入燒瓶內,例如於60~130℃下反應1~10小時,藉此可獲得樹脂[K4]。 相對於(a)100莫耳,(b)之使用量較佳為5~80莫耳,更佳為10~75莫耳。藉由設為該範圍,而存在保存穩定性、顯影性、耐溶劑性、耐熱性、機械強度及感度之平衡變良好之傾向。就環狀醚之反應性較高、不易殘留未反應之(b)之方面而言,作為樹脂[K4]中所使用之(b),較佳為(b1),進而較佳為(b1-1)。 相對於(a)、(b)及(c)之合計量,上述反應觸媒之使用量較佳為0.001~5質量%。相對於(a)、(b)及(c)之合計量,上述聚合抑制劑之使用量較佳為0.001~5質量%。 各試劑之添加方法、反應溫度及反應時間等反應條件可考慮製造設備或聚合之發熱量等而適當調整。再者,與聚合條件同樣地,可考慮製造設備或聚合之發熱量等而適當調整添加方法或反應溫度。 於製造樹脂[K5]時,作為第一階段,與上述之樹脂[K1]之製造方法同樣地獲得(b)與(c)之共聚物。與上述同樣地,所獲得之共聚物可直接使用反應後之溶液,亦可使用經濃縮或稀釋之溶液,亦可使用藉由再沈澱等方法以固體(粉體)之形式取出者。 於第一階段中,關於源自(b)及(c)之結構單元之比率,較佳為相對於構成上述(b)與(c)之共聚物之所有結構單元的合計莫耳數而處於以下範圍內。 源自(b)之結構單元;5~95莫耳%(更佳為10~90莫耳%) 源自(c)之結構單元;5~95莫耳%(更佳為10~90莫耳%) 進而,作為第二階段,可於與樹脂[K4]之製造方法相同之條件下,使(a)所具有之羧酸或羧酸酐與(b)和(c)之共聚物所具有之源自(b)之環狀醚反應,藉此獲得樹脂[K5]。 於第二階段中,相對於(b)100莫耳,與上述(b)和(c)之共聚物進行反應之(a)之使用量較佳為5~80莫耳。就環狀醚之反應性較高、不易殘留未反應之(b)之方面而言,作為樹脂[K5]中所使用之(b),較佳為(b1),進而較佳為(b1-1)。 樹脂[K6]係進而使羧酸酐與樹脂[K5]反應而獲得之樹脂。可藉由使羧酸酐與藉由源自(b)之環狀醚(a)與羧酸或羧酸酐之反應而產生之羥基進行反應而製造。 作為羧酸酐,可列舉:馬來酸酐、檸康酸酐、伊康酸酐、3-乙烯基鄰苯二甲酸酐、4-乙烯基鄰苯二甲酸酐、3,4,5,6-四氫鄰苯二甲酸酐、1,2,3,6-四氫鄰苯二甲酸酐、二甲基四氫鄰苯二甲酸酐、5,6-二羧基二環[2.2.1]庚-2-烯酐(雙環庚烯二甲酸酐)等。相對於(a)之使用量1莫耳,羧酸酐之使用量較佳為0.5~1莫耳。 作為樹脂(B),具體而言可列舉:(甲基)丙烯酸3,4-環氧環己基甲酯/(甲基)丙烯酸共聚物、丙烯酸3,4-環氧三環[5.2.1.02,6 ]癸酯/(甲基)丙烯酸共聚物等樹脂[K1];(甲基)丙烯酸縮水甘油酯/(甲基)丙烯酸苄酯/(甲基)丙烯酸共聚物、(甲基)丙烯酸縮水甘油酯/苯乙烯/(甲基)丙烯酸共聚物、丙烯酸3,4-環氧三環[5.2.1.02,6 ]癸酯/(甲基)丙烯酸/N-環己基馬來醯亞胺共聚物、3-甲基-3-(甲基)丙烯醯氧基甲基氧雜環丁烷/(甲基)丙烯酸/苯乙烯共聚物等樹脂[K2];(甲基)丙烯酸苄酯/(甲基)丙烯酸共聚物、苯乙烯/(甲基)丙烯酸共聚物、(甲基)丙烯酸苄酯/(甲基)丙烯酸三環癸酯/(甲基)丙烯酸共聚物等樹脂[K3];於(甲基)丙烯酸苄酯/(甲基)丙烯酸共聚物上加成(甲基)丙烯酸縮水甘油酯而成之樹脂、於(甲基)丙烯酸三環癸酯/苯乙烯/(甲基)丙烯酸共聚物上加成(甲基)丙烯酸縮水甘油酯而成之樹脂、於(甲基)丙烯酸三環癸酯/(甲基)丙烯酸苄酯/(甲基)丙烯酸共聚物上加成(甲基)丙烯酸縮水甘油酯而成之樹脂等樹脂[K4];使(甲基)丙烯酸與(甲基)丙烯酸三環癸酯/(甲基)丙烯酸縮水甘油酯之共聚物反應而成之樹脂、使(甲基)丙烯酸與(甲基)丙烯酸三環癸酯/苯乙烯/(甲基)丙烯酸縮水甘油酯之共聚物反應而成之樹脂等樹脂[K5];進而使四氫鄰苯二甲酸酐與使(甲基)丙烯酸與(甲基)丙烯酸三環癸酯/(甲基)丙烯酸縮水甘油酯之共聚物反應而成之樹脂進行反應而成的樹脂等樹脂[K6]等。該等樹脂可單獨使用,亦可併用2種以上。 其中,作為樹脂(B),較佳為樹脂[K1]及樹脂[K2],更佳為樹脂[K1]。 樹脂(B)之聚苯乙烯換算之重量平均分子量較佳為3,000~100,000,更佳為5,000~50,000,進而較佳為5,000~30,000。若分子量處於上述範圍內,則存在未曝光部於顯影液中之溶解性較高、所獲得之圖案之殘膜率或硬度亦較高之傾向。 樹脂(B)之分子量分佈[重量平均分子量(Mw)/數量平均分子量(Mn)]較佳為1.1~6,更佳為1.2~4。 樹脂(B)之酸值較佳為50~180 mg-KOH/g,更佳為60~150 mg-KOH/g。此處酸值係以將樹脂1 g中和所必需之氫氧化鉀之量(mg)的形式所測得之值,例如可藉由使用氫氧化鉀水溶液進行滴定而求出。 於著色感光性樹脂組合物之固形物成分中,樹脂(B)之含量較佳為7~65質量%,更佳為13~60質量%,進而較佳為17~55質量%。若樹脂(B)之含量處於上述範圍內,則存在未曝光部於顯影液中之溶解性較高之傾向。 <聚合性化合物(C)> 聚合性化合物(C)之重量平均分子量較佳為3,000以下。聚合性化合物(C)只要為可藉由活性自由基等進行聚合之化合物,則無特別限定,上述活性自由基係藉由照射光而由聚合起始劑(D)產生,聚合性化合物(C)例如可列舉具有聚合性之乙烯性不飽和鍵之化合物等。 其中,作為聚合性化合物(C),較佳為具有3個以上之乙烯性不飽和鍵之光聚合性化合物,例如可列舉:三羥甲基丙烷三(甲基)丙烯酸酯、季戊四醇三(甲基)丙烯酸酯、季戊四醇四(甲基)丙烯酸酯、二季戊四醇五(甲基)丙烯酸酯、二季戊四醇六(甲基)丙烯酸酯、三季戊四醇八(甲基)丙烯酸酯、三季戊四醇七(甲基)丙烯酸酯、四季戊四醇十(甲基)丙烯酸酯、四季戊四醇九(甲基)丙烯酸酯、異氰尿酸三(2-(甲基)丙烯醯氧基乙基)酯、乙二醇改性季戊四醇四(甲基)丙烯酸酯、乙二醇改性二季戊四醇六(甲基)丙烯酸酯、丙二醇改性季戊四醇四(甲基)丙烯酸酯、丙二醇改性二季戊四醇六(甲基)丙烯酸酯、己內酯改性季戊四醇四(甲基)丙烯酸酯、己內酯改性二季戊四醇六(甲基)丙烯酸酯等。其中,可列舉二季戊四醇五(甲基)丙烯酸酯、二季戊四醇六(甲基)丙烯酸酯等。 聚合性化合物(C)之重量平均分子量較佳為150以上且2,900以下,更佳為250以上且1,500以下。 於固形物成分之總量中,聚合性化合物(C)之含量較佳為7~65質量%,更佳為13~60質量%,進而較佳為15~55質量%。若聚合性化合物(C)之含量處於上述範圍內,則存在著色圖案形成時之殘膜率及彩色濾光片之耐化學品性提高之傾向。 相對於著色感光性樹脂組合物中之樹脂(B)100質量份,聚合性化合物(C)之含量較佳為20~150質量份。 <聚合起始劑(D)> 作為聚合起始劑(D),只要藉由光或熱之作用而產生活性自由基從而可引發聚合性化合物(C)之聚合,則無特別限定,可使用公知之自由基聚合起始劑。 作為聚合起始劑(D),較佳為藉由光之作用而產生活性自由基之化合物,更佳為苯烷基酮化合物、三
Figure 110109077-A0304-12-02
化合物、醯基氧化膦化合物、肟化合物(尤其是O-醯基肟化合物)及咪唑化合物,尤其進而佳為包含肟化合物之聚合起始劑。 上述苯烷基酮化合物係具有式(d1)所表示之部分結構或式(d2)所表示之部分結構之化合物。該等部分結構中,苯環亦可具有取代基。以下,*表示結合鍵。 [化6]
Figure 02_image011
作為具有式(d1)所表示之部分結構之化合物,例如可列舉:2-甲基-2-
Figure 110109077-A0304-12-03
啉基-1-(4-甲基巰基苯基)丙烷-1-酮、2-二甲基胺基-1-(4-
Figure 110109077-A0304-12-03
啉基苯基)-2-苄基丁烷-1-酮、2-(二甲基胺基)-2-[(4-甲基苯基)甲基]-1-[4-(4-
Figure 110109077-A0304-12-03
啉基)苯基]丁烷-1-酮等。亦可使用Irgacure(註冊商標)369、907、379(以上為BASF公司製造)等市售品。 作為具有式(d2)所表示之部分結構之化合物,例如可列舉:2-羥基-2-甲基-1-苯基丙烷-1-酮、2-羥基-2-甲基-1-[4-(2-羥基乙氧基)苯基]丙烷-1-酮、1-羥基環己基苯基酮、2-羥基-2-甲基-1-(4-異丙烯基苯基)丙烷-1-酮之低聚物、α,α-二乙氧基苯乙酮、苯偶醯二甲基縮酮等。 就感度之方面而言,作為苯烷基酮化合物,較佳為具有式(d1)所表示之部分結構之化合物。 作為上述三
Figure 110109077-A0304-12-02
化合物,例如可列舉:2,4-雙(三氯甲基)-6-(4-甲氧基苯基)-1,3,5-三
Figure 110109077-A0304-12-02
、2,4-雙(三氯甲基)-6-(4-甲氧基萘基)-1,3,5-三
Figure 110109077-A0304-12-02
、2,4-雙(三氯甲基)-6-向日葵基-1,3,5-三
Figure 110109077-A0304-12-02
、2,4-雙(三氯甲基)-6-(4-甲氧基苯乙烯基)-1,3,5-三
Figure 110109077-A0304-12-02
、2,4-雙(三氯甲基)-6-[2-(5-甲基呋喃-2-基)乙烯基]-1,3,5-三
Figure 110109077-A0304-12-02
、2,4-雙(三氯甲基)-6-[2-(呋喃-2-基)乙烯基]-1,3,5-三
Figure 110109077-A0304-12-02
、2,4-雙(三氯甲基)-6-[2-(4-二乙基胺基-2-甲基苯基)乙烯基]-1,3,5-三
Figure 110109077-A0304-12-02
、2,4-雙(三氯甲基)-6-[2-(3,4-二甲氧基苯基)乙烯基]-1,3,5-三
Figure 110109077-A0304-12-02
等。 作為上述醯基氧化膦化合物,可列舉2,4,6-三甲基苯甲醯基二苯基氧化膦等。亦可使用Irgacure(註冊商標)819(BASF公司製造)等市售品。 作為肟化合物,較佳為O-醯基肟化合物。上述O-醯基肟化合物係具有式(d3)所表示之部分結構之化合物。 [化7]
Figure 02_image013
作為上述O-醯基肟化合物,例如可使用N-苯甲醯氧基-1-(4-苯基巰基苯基)丁烷-1-酮-2-亞胺、N-苯甲醯氧基-1-(4-苯基巰基苯基)辛烷-1-酮-2-亞胺、N-苯甲醯氧基-1-(4-苯基巰基苯基)-3-環戊基丙烷-1-酮-2-亞胺、N-乙醯氧基-1-[9-乙基-6-(2-甲基苯甲醯基)-9H-咔唑-3-基]乙烷-1-亞胺、N-乙醯氧基-1-[9-乙基-6-{2-甲基-4-(3,3-二甲基-2,4-二氧雜環戊基甲氧基)苯甲醯基}-9H-咔唑-3-基]乙烷-1-亞胺、N-乙醯氧基-1-[9-乙基-6-(2-甲基苯甲醯基)-9H-咔唑-3-基]-3-環戊基丙烷-1-亞胺、N-苯甲醯氧基-1-[9-乙基-6-(2-甲基苯甲醯基)-9H-咔唑-3-基]-3-環戊基丙烷-1-酮-2-亞胺、N-乙醯氧基-1-[4-{4-(2-羥基乙氧基)苯基}巰基苯基]-丙烷-1-酮-2-亞胺等。亦可使用Irgacure(註冊商標)OXE01、OXE02(以上,BASF公司製造)、N-1919(ADEKA公司製造)等市售品。 其中,O-醯基肟化合物較佳為選自由N-苯甲醯氧基-1-(4-苯基巰基苯基)丁烷-1-酮-2-亞胺、N-苯甲醯氧基-1-(4-苯基巰基苯基)辛烷-1-酮-2-亞胺、N-苯甲醯氧基-1-(4-苯基巰基苯基)-3-環戊基丙烷-1-酮-2-亞胺及N-乙醯氧基-1-[4-{4-(2-羥基乙氧基)苯基}巰基苯基]-丙烷-1-酮-2-亞胺所組成之群中之至少1種,更佳為選自由N-苯甲醯氧基-1-(4-苯基巰基苯基)辛烷-1-酮-2-亞胺及N-乙醯氧基-1-[4-{4-(2-羥基乙氧基)苯基}巰基苯基]-丙烷-1-酮-2-亞胺所組成之群中之至少1種。若為該等O-醯基肟化合物,則存在可獲得高亮度之彩色濾光片之傾向。 作為咪唑化合物,具體而言,例如可列舉:2,2'-雙(2-氯苯基)-4,4',5,5'-四苯基聯咪唑、2,2'-雙(2,3-二氯苯基)-4,4',5,5'-四苯基聯咪唑(例如參照日本專利特開平6-75372號公報、日本專利特開平6-75373號公報等)、2,2'-雙(2-氯苯基)-4,4',5,5'-四苯基聯咪唑、2,2'-雙(2-氯苯基)-4,4',5,5'-四(烷氧基苯基)聯咪唑、2,2'-雙(2-氯苯基)-4,4',5,5'-四(二烷氧基苯基)聯咪唑、2,2'-雙(2-氯苯基)-4,4',5,5'-四(三烷氧基苯基)聯咪唑(例如參照日本專利特公昭48-38403號公報、日本專利特開昭62-174204號公報等)、4,4',5,5'-位之苯基經碳烷氧基取代之咪唑化合物(例如參照日本專利特開平7-10913號公報等)等。 其中,較佳為式(d4)所表示之化合物。 [化8]
Figure 02_image015
[式(d4)中,Rd7 ~Rd10 分別獨立地表示氫原子或烷氧基(較佳為碳數1~4之烷氧基,更佳為甲氧基)。Rd11 及Rd12 分別獨立地表示氫原子或鹵素原子(較佳為氯原子)]。 作為上述式(d4)所表示之化合物,具體而言可列舉下述式所表示之化合物,較佳為該等之混合物。 [化9]
Figure 02_image017
作為聚合起始劑(D),進而可列舉:安息香、安息香甲醚、安息香乙醚、安息香異丙醚、安息香異丁醚等安息香化合物;二苯甲酮、鄰苯甲醯基苯甲酸甲酯、4-苯基二苯甲酮、4-苯甲醯基-4'-甲基二苯硫醚、3,3',4,4'-四(第三丁基過氧化羰基)二苯甲酮、2,4,6-三甲基二苯甲酮等二苯甲酮化合物;9,10-菲醌、2-乙基蒽醌、樟腦醌等醌化合物;10-丁基-2-氯吖啶酮、苯偶醯、苯基乙醛酸甲酯、二茂鈦化合物等。該等較佳為與下述聚合起始助劑(D1)(尤其是胺類)組合使用。 其中,作為聚合起始劑(D),較佳為選自苯烷基酮化合物、肟化合物(尤其是O-醯基肟化合物)及咪唑化合物中之1種以上,進而較佳為選自肟化合物(尤其是O-醯基肟化合物)及咪唑化合物中之1種以上。又,聚合起始劑(D)亦可組合2種以上,亦可與下述聚合起始助劑(D1)組合。較佳為將2種以上之聚合起始劑(D)與聚合起始助劑(D1)組合。又,作為聚合起始劑(D),較佳為包含肟化合物(尤其是O-醯基肟化合物)與咪唑化合物之至少一者,更佳為包含肟化合物(尤其是O-醯基肟化合物)與咪唑化合物兩者。 於併用肟化合物與咪唑化合物之情形時,關於該含量比,以質量基準計而較佳為1:9~9:1,更佳為2:8~8:2,進而較佳為4:6~6:4。 相對於樹脂(B)及聚合性化合物(C)之合計量100質量份,聚合起始劑(D)之含量較佳為0.1~30質量份,更佳為1~20質量份。若聚合起始劑(D)之含量處於上述範圍內,則存在高感度化而縮短曝光時間之傾向,因此彩色濾光片之生產性提高。 本發明之著色感光性樹脂組合物亦可包含聚合起始助劑(D1)。於包含聚合起始助劑(D1)之情形時,通常與聚合起始劑(D)組合使用。聚合起始助劑(D1)係用於促進藉由聚合起始劑(D)而開始聚合之聚合性化合物(C)之聚合的化合物、或者增感劑。 作為聚合起始助劑(D1),可列舉:胺化合物、烷氧基蒽化合物、9-氧硫
Figure 110109077-A0304-12-04
Figure 110109077-A0304-12-05
化合物、羧酸化合物、硫醇化合物等,較佳為硫醇化合物。該等聚合起始助劑可單獨使用,亦可併用2種以上。 作為上述胺化合物,可列舉:三乙醇胺、甲基二乙醇胺、三異丙醇胺等烷醇胺;4-二甲基胺基苯甲酸甲酯、4-二甲基胺基苯甲酸乙酯、4-二甲基胺基苯甲酸異戊酯、苯甲酸2-二甲基胺基乙酯、4-二甲基胺基苯甲酸2-乙基己酯等胺基苯甲酸酯;N,N-二甲基對甲苯胺;4,4'-雙(二甲胺基)二苯甲酮(通稱米其勒酮)、4,4'-雙(二乙基胺基)二苯甲酮、4,4'-雙(乙基甲基胺基)二苯甲酮等烷基胺基二苯甲酮等,其中,較佳為烷基胺基二苯甲酮,較佳為4,4'-雙(二乙基胺基)二苯甲酮。亦可使用EAB-F(保土谷化學工業(股)製造)等市售品。 作為上述烷氧基蒽化合物,可列舉:9,10-二甲氧基蒽、2-乙基-9,10-二甲氧基蒽、9,10-二乙氧基蒽、2-乙基-9,10-二乙氧基蒽、9,10-二丁氧基蒽、2-乙基-9,10-二丁氧基蒽等。 作為上述9-氧硫
Figure 110109077-A0304-12-04
Figure 110109077-A0304-12-05
化合物,可列舉:2-異丙基9-氧硫
Figure 110109077-A0304-12-04
Figure 110109077-A0304-12-05
、4-異丙基9-氧硫
Figure 110109077-A0304-12-04
Figure 110109077-A0304-12-05
、2,4-二乙基9-氧硫
Figure 110109077-A0304-12-04
Figure 110109077-A0304-12-05
、2,4-二氯9-氧硫
Figure 110109077-A0304-12-04
Figure 110109077-A0304-12-05
、1-氯-4-丙氧基9-氧硫
Figure 110109077-A0304-12-04
Figure 110109077-A0304-12-05
等。 作為上述羧酸化合物,可列舉:苯基巰基乙酸、甲基苯基巰基乙酸、乙基苯基巰基乙酸、甲基乙基苯基巰基乙酸、二甲基苯基巰基乙酸、甲氧基苯基巰基乙酸、二甲氧基苯基巰基乙酸、氯苯基巰基乙酸、二氯苯基巰基乙酸、N-苯基甘胺酸、苯氧基乙酸、萘硫基乙酸、N-萘基甘胺酸、萘氧基乙酸等。 硫醇化合物係於分子內具有巰基(-SH)之化合物。 作為分子內具有1個巰基之化合物,例如可列舉:2-巰基
Figure 110109077-A0304-12-06
唑、2-巰基噻唑、2-巰基苯并咪唑、2-巰基苯并噻唑、2-巰基苯并
Figure 110109077-A0304-12-06
唑、2-巰基菸鹼酸、2-巰基吡啶、2-巰基吡啶-3-醇、2-巰基吡啶-N-氧化物、4-胺基-6-羥基-2-巰基嘧啶、4-胺基-6-羥基-2-巰基嘧啶、4-胺基-2-巰基嘧啶、6-胺基-5-亞硝基-2-硫尿嘧啶、4,5-二胺基-6-羥基-2-巰基嘧啶、4,6-二胺基-2-巰基嘧啶、2,4-二胺基-6-巰基嘧啶、4,6-二羥基-2-巰基嘧啶、4,6-二甲基-2-巰基嘧啶、4-羥基-2-巰基-6-甲基嘧啶、4-羥基-2-巰基-6-丙基嘧啶、2-巰基-4-甲基嘧啶、2-巰基嘧啶、2-硫尿嘧啶、3,4,5,6-四氫嘧啶-2-硫醇、4,5-二苯咪唑-2-硫醇、2-巰基咪唑、2-巰基-1-甲基咪唑、4-胺基-3-肼基-5-巰基-1,2,4-三唑、3-胺基-5-巰基-1,2,4-三唑、2-甲基-4H-1,2,4-三唑-3-硫醇、4-甲基-4H-1,2,4-三唑-3-硫醇、3-巰基-1H-1,2,4-三唑-3-硫醇、2-胺基-5-巰基-1,3,4-噻二唑、5-胺基-1,3,4-噻二唑-2-硫醇、2,5-二巰基-1,3,4-噻二唑、(呋喃-2-基)甲硫醇、2-巰基-5-四氫噻唑、2-巰基噻唑啉、2-巰基-4(3H)-喹唑啉酮、1-苯基-1H-四唑-5-硫醇、2-喹啉硫醇、2-巰基-5-甲基苯并咪唑、2-巰基-5-硝基苯并咪唑、6-胺基-2-巰基苯并噻唑、5-氯-2-巰基苯并噻唑、6-乙氧基-2-巰基苯并噻唑、6-硝基-2-巰基苯并噻唑、2-巰基萘并咪唑、2-巰基萘并
Figure 110109077-A0304-12-06
唑、3-巰基-1,2,4-三唑、4-胺基-6-巰基吡唑并[2,4-d]吡啶、2-胺基-6-嘌呤硫醇、6-巰基嘌呤、4-巰基-1H-吡唑并[2,4-d]嘧啶等。 作為分子內具有2個以上之巰基之化合物,可列舉:己二硫醇、癸二硫醇、1,4-雙(甲基巰基)苯、丁二醇雙(3-巰基丙酸酯)、丁二醇雙(3-巰基乙酸酯)、乙二醇雙(3-巰基乙酸酯)、三羥甲基丙烷三(3-巰基乙酸酯)、丁二醇雙(3-巰基丙酸酯)、三羥甲基丙烷三(3-巰基丙酸酯)、三羥甲基丙烷三(3-巰基乙酸酯)、季戊四醇四(3-巰基丙酸酯)、季戊四醇四(3-巰基乙酸酯)、三羥基乙基三(3-巰基丙酸酯)、季戊四醇四(3-巰基丁酸酯)、1,4-雙(3-巰基丁氧基)丁烷等。 作為硫醇化合物,較佳為分子內具有1個巰基之化合物。 相對於聚合起始劑(D)100質量份,硫醇化合物之含量較佳為0.5~20質量份,更佳為1~15質量份。若硫醇化合物之含量處於該範圍內,則存在感度變高、且顯影性變良好之傾向。 於使用聚合起始助劑(D1)之情形時,相對於聚合起始劑(D)1莫耳,其含量較佳為0.01~10莫耳,更佳為0.01~5莫耳。 又,相對於著色感光性樹脂組合物之固形物成分,聚合起始劑(D)與聚合起始助劑(D1)之合計含量較佳為1~35質量%,更佳為1~25質量%,進而較佳為5~20質量%。 本發明之著色感光性樹脂組合物較佳為包含溶劑(E)。溶劑(E)並無特別限定,可使用該領域中通常使用之溶劑。例如,可自酯溶劑(含有-COO-之溶劑)、酯溶劑以外之醚溶劑(含有-O-且不含-COO-之溶劑)、醚酯溶劑(含有-COO-與-O-之溶劑)、酯溶劑以外之酮溶劑(含有-CO-且不含-COO-之溶劑)、醇溶劑(分子內含有OH且不含-O-、-CO-及-COO-之溶劑)、芳香族烴溶劑、醯胺溶劑、二甲基亞碸等中選擇而使用。 作為酯溶劑,可列舉:乳酸甲酯、乳酸乙酯、乳酸丁酯、2-羥基異丁酸甲酯、乙酸乙酯、乙酸正丁酯、乙酸異丁酯、甲酸戊酯、乙酸異戊酯、丙酸丁酯、丁酸異丙酯、丁酸乙酯、丁酸丁酯、丙酮酸甲酯、丙酮酸乙酯、丙酮酸丙酯、乙醯乙酸甲酯、乙醯乙酸乙酯、環己二醇乙酸酯、γ-丁內酯等。 作為醚溶劑,可列舉:乙二醇單甲醚、乙二醇單乙醚、乙二醇單丙醚、乙二醇單丁醚、二乙二醇單甲醚、二乙二醇單乙醚、二乙二醇單丁醚、丙二醇單甲醚、丙二醇單乙醚、丙二醇單丙醚、丙二醇單丁醚、3-甲氧基-1-丁醇、3-甲氧基-3-甲基丁醇、四氫呋喃、四氫吡喃、1,4-二
Figure 110109077-A0304-12-06
烷、二乙二醇二甲醚、二乙二醇二乙醚、二乙二醇甲基乙基醚、二乙二醇二丙醚、二乙二醇二丁醚、苯甲醚、苯乙醚、甲基苯甲醚等。 作為醚酯溶劑,可列舉:甲氧基乙酸甲酯、甲氧基乙酸乙酯、甲氧基乙酸丁酯、乙氧基乙酸甲酯、乙氧基乙酸乙酯、3-甲氧基丙酸甲酯、3-甲氧基丙酸乙酯、3-乙氧基丙酸甲酯、3-乙氧基丙酸乙酯、2-甲氧基丙酸甲酯、2-甲氧基丙酸乙酯、2-甲氧基丙酸丙酯、2-乙氧基丙酸甲酯、2-乙氧基丙酸乙酯、2-甲氧基-2-甲基丙酸甲酯、2-乙氧基-2-甲基丙酸乙酯、3-甲氧基丁基乙酸酯、3-甲基-3-甲氧基丁基乙酸酯、丙二醇單甲醚乙酸酯、丙二醇單乙醚乙酸酯、丙二醇單丙醚乙酸酯、乙二醇單甲醚乙酸酯、乙二醇單乙醚乙酸酯、二乙二醇單乙醚乙酸酯、二乙二醇單丁醚乙酸酯、二丙二醇甲醚乙酸酯等。 作為酮溶劑,可列舉:4-羥基-4-甲基-2-戊酮、丙酮、2-丁酮、2-庚酮、3-庚酮、4-庚酮、4-甲基-2-戊酮、環戊酮、環己酮、異佛爾酮等。 作為醇溶劑,可列舉:甲醇、乙醇、丙醇、丁醇、己醇、環己醇、乙二醇、丙二醇、甘油等。 作為芳香族烴溶劑,可列舉苯、甲苯、二甲苯、均三甲苯等。 作為醯胺溶劑,可列舉N,N-二甲基甲醯胺、N,N-二甲基乙醯胺、N-甲基吡咯啶酮等。 該等溶劑可單獨使用,亦可併用2種以上。 上述溶劑中,就塗佈性、乾燥性之方面而言,較佳為1 atm下之沸點為120℃以上且180℃以下之有機溶劑。其中,較佳為丙二醇單甲醚乙酸酯、乳酸乙酯、丙二醇單甲醚、二丙二醇甲醚乙酸酯、3-乙氧基丙酸乙酯、乙二醇單甲醚、乙二醇單丁醚、二乙二醇單甲醚、二乙二醇單乙醚、3-甲氧基丁基乙酸酯、3-甲氧基-1-丁醇、4-羥基-4-甲基-2-戊酮、N,N-二甲基甲醯胺等,更佳為丙二醇單甲醚乙酸酯、丙二醇單甲醚、二丙二醇甲醚乙酸酯、乳酸乙酯、3-甲氧基丁基乙酸酯、3-甲氧基-1-丁醇、3-乙氧基丙酸乙酯等。 於著色感光性樹脂組合物中,溶劑(E)之含量較佳為70~95質量%,更佳為75~92質量%。換言之,著色感光性樹脂組合物之固形物成分之總量較佳為5~30質量%,更佳為8~25質量%。若溶劑(E)之含量處於上述範圍內,則存在塗佈時之平坦性變良好、且形成彩色濾光片時色濃度不會不足故顯示特性變良好之傾向。 <調平劑(F)> 作為調平劑(F),可列舉聚矽氧系界面活性劑、氟系界面活性劑等。該等亦可於側鏈中具有聚合性基。 作為聚矽氧系界面活性劑,可列舉分子內具有矽氧烷鍵之界面活性劑等。具體而言可列舉:Toray Silicone DC3PA、Toray Silicone SH7PA、Toray Silicone DC11PA、Toray Silicone SH21PA、Toray Silicone SH28PA、Toray Silicone SH29PA、Toray Silicone SH30PA、Toray Silicone SH8400(商品名:Toray-Dow Corning(股)製造);KP321、KP322、KP323、KP324、KP326、KP340、KP341(信越化學工業(股)製造);TSF400、TSF401、TSF410、TSF4300、TSF4440、TSF4445、TSF4446、TSF4452及TSF4460(日本邁圖高新材料(Momentive Performance Materials Japan)有限公司製造)等。 作為上述氟系界面活性劑,可列舉分子內具有氟碳鏈之界面活性劑等。具體而言可列舉:Fluorad(註冊商標)FC430、Fluorad FC431(Sumitomo 3M(股)製造);Megafac(註冊商標)F142D、Megafac F171、Megafac F172、Megafac F173、Megafac F177、Megafac F183、Megafac F554、Megafac R30、Megafac RS-718-K(DIC(股)製造);Eftop(註冊商標)EF301、Eftop EF303、Eftop EF351、Eftop EF352(三菱綜合材料電子化成(股)製造);Surflon(註冊商標)S381、Surflon S382、Surflon SC101、Surflon SC105(旭硝子(股)製造)及E5844(Daikin Fine Chemical研究所(股)製造)等。 作為聚矽氧系界面活性劑,可列舉進而具有氟原子之聚矽氧系界面活性劑。作為具有氟原子之聚矽氧系界面活性劑,可列舉:Megafac(註冊商標)R08、Megafac BL20、Megafac F475、Megafac F477及Megafac F443(DIC(股)製造)等。 於著色感光性樹脂組合物之總量中,調平劑(F)之含量較佳為0.001質量%以上且0.2質量%以下,較佳為0.002質量%以上且0.1質量%以下,更佳為0.01質量%以上且0.05質量%以下。再者,於該含量中不包括上述顏料分散劑之含量。 本發明之著色感光性樹脂組合物視需要亦可含有填充劑、其他高分子化合物、密接促進劑、抗氧化劑、紫外線吸收劑、光穩定劑、鏈轉移劑、硬化劑等添加劑。 <著色感光性樹脂組合物之製造方法> 本發明之著色感光性樹脂組合物例如可藉由將著色劑(A)、樹脂(B)、聚合性化合物(C)、聚合起始劑(D)、以及視需要使用之溶劑(E)、調平劑(F)、聚合起始助劑(D1)及其他成分混合而製備。 <彩色濾光片之製造方法> 作為使用本發明之著色感光性樹脂組合物形成圖案之方法,可列舉光微影法、噴墨法、印刷法等。其中,較佳為光微影法。 光微影法係將上述著色感光性樹脂組合物塗佈於基板上並加以乾燥,隔著光罩進行曝光,並進行顯影,藉此獲得圖案之方法。於光微影法中,藉由於曝光時不使用光罩、及/或不進行顯影,可形成作為上述著色組合物層之硬化物之著色塗膜。可將以上述方式形成之著色圖案或著色塗膜作為本發明之彩色濾光片。 作為上述基板,例如可列舉:石英玻璃、硼矽酸玻璃、鋁硼矽酸鹽玻璃、表面上塗佈有二氧化矽之鈉鈣玻璃等玻璃,矽,金屬,聚碳酸酯、聚甲基丙烯酸甲酯、聚對苯二甲酸乙二酯等塑膠等,於上述基板上形成有鋁、銀、銀/銅/鈀合金薄膜等者,可為板狀,亦可為膜狀。又,亦可於該等基板上形成有彩色濾光片、各種絕緣或導電膜、驅動電路等構造體。 關於向基板之塗佈,例如可使用旋轉塗佈機、狹縫及旋轉塗佈機、狹縫式塗佈機(有亦稱為模嘴塗佈機、淋幕式平面塗佈機、非旋轉塗佈機之情況)、噴墨機等塗佈裝置而進行。 作為塗佈於基板上之膜之乾燥方法,可列舉加熱乾燥、自然乾燥、通風乾燥、減壓乾燥等方法。亦可將複數種方法組合而進行。作為乾燥溫度,較佳為10~120℃,更佳為50~100℃。又,作為加熱時間,較佳為10秒鐘~60分鐘,更佳為30秒鐘~10分鐘。減壓乾燥較佳為於50~150 Pa之壓力下於20~25℃之溫度範圍內進行。 隔著用以形成目標圖案之光罩,對乾燥後之塗膜進行曝光。此時之光罩上之圖案形狀並無特別限定,可使用與目標相對應之用途之圖案形狀。 作為曝光所使用之光源,較佳為產生250~450 nm之波長之光的光源。例如,亦可對未達350 nm之光使用截止該波長區域之濾波器加以截止,或者對436 nm附近、408 nm附近、365 nm附近之光使用擷取該等波長區域之帶通濾波器選擇性地擷取。具體而言,作為光源,可列舉水銀燈、發光二極體、金屬鹵化物燈、鹵素燈等。 較佳為使用光罩對準曝光機、步進式曝光機等裝置,其原因在於:可對曝光面整個面均勻地照射平行光線,或者進行光罩與基材之準確對位。 曝光後,與顯影液接觸而使特定部分(例如未曝光部)溶解,進行顯影,藉此可獲得圖案。作為顯影液,亦可使用有機溶劑,較佳為鹼性化合物之水溶液,其原因在於:不易因顯影液而引起塗膜之曝光部之溶解或膨潤,可獲得良好形狀之圖案。 顯影方法可為覆液法、浸漬法及噴霧法等中之任一種方法。進而亦可於顯影時使基板傾斜至任意之角度。 顯影後較佳為進行水洗。 作為上述鹼性化合物,可列舉:氫氧化鈉、氫氧化鉀、磷酸氫二鈉、磷酸二氫鈉、磷酸氫二銨、磷酸二氫銨、磷酸二氫鉀、矽酸鈉、矽酸鉀、碳酸鈉、碳酸鉀、碳酸氫鈉、碳酸氫鉀、硼酸鈉、硼酸鉀、氨等無機鹼性化合物;氫氧化四甲基銨、氫氧化2-羥基乙基三甲基銨、單甲基胺、二甲基胺、三甲胺、單乙基胺、二乙基胺、三乙基胺、單異丙基胺、二異丙基胺、乙醇胺等有機鹼性化合物。其中,較佳為氫氧化鉀、碳酸氫鈉及氫氧化四甲基銨。 該等無機及有機鹼性化合物於水溶液中之濃度較佳為0.01~10質量%,更佳為0.03~5質量%。 上述鹼性化合物之水溶液亦可包含界面活性劑。 作為界面活性劑,可列舉:聚氧乙烯烷基醚、聚氧乙烯芳基醚、聚氧乙烯烷基芳基醚、其他聚氧乙烯衍生物、氧乙烯/氧丙烯嵌段共聚物、山梨醇酐脂肪酸酯、聚氧乙烯山梨醇酐脂肪酸酯、聚氧乙烯山梨醇脂肪酸酯、甘油脂肪酸酯、聚氧乙烯脂肪酸酯、聚氧乙烯烷基胺等非離子系界面活性劑; 月桂醇硫酸酯鈉、油醇硫酸酯鈉、月桂基硫酸鈉、月桂基硫酸銨、十二烷基苯磺酸鈉、十二烷基萘磺酸鈉等陰離子系界面活性劑; 硬脂胺鹽酸鹽、氯化月桂基三甲基銨等陽離子系界面活性劑等。 鹼性化合物之水溶液中之界面活性劑之濃度較佳為0.01~10質量%,更佳為0.05~8質量%,尤佳為0.1~5質量%。 進而,視需要亦可進行後烘烤。後烘烤例如較佳為於150~250℃下於1~240分鐘之範圍內進行。 關於後烘烤後之塗膜之膜厚,就所獲得之塗膜之膜厚與鄰接像素之影響變大之方面而言,較佳為儘可能薄之膜,較佳為3 μm以下。進而於成為厚膜之情形時,由於如下原因而欠佳:於製作液晶顯示裝置(例如液晶面板)時,光源之光通過2色以上之像素而漏出,因此於斜向觀察面板之情形時,喪失顏色之鮮豔度等。又,後烘烤後之塗膜之膜厚較佳為0.5 μm以上。 由本發明之著色感光性樹脂組合物形成之著色塗膜及著色圖案作為彩色濾光片而有用。該彩色濾光片可以公知之態樣而用於顯示裝置(例如液晶顯示裝置、有機EL裝置等)、固體攝像元件、電子紙等各種與著色圖像相關之機器中。 [實施例] 繼而,列舉實施例對本發明進一步具體地進行說明。例中之「%」及「份」只要無特別記載,則為質量%及質量份。 合成例1 於具備回流冷凝器、滴液漏斗及攪拌機之1 L之燒瓶內流通適量之氮氣而置換成氮氣環境,添加丙二醇單甲醚乙酸酯280重量份,一面攪拌一面加熱至80℃。繼而,歷時5小時滴加丙烯酸38重量份、丙烯酸3,4-環氧三環[5.2.1.02,6 ]癸烷-8或/及9-基酯之混合物289重量份、丙二醇單甲醚乙酸酯125重量份之混合溶液。另一方面,歷時6小時滴加使2,2-偶氮雙(2,4-二甲基戊腈)33重量份溶解於丙二醇單甲醚乙酸酯235重量份中而成之混合溶液。滴加結束後,於相同溫度下保持4小時後,冷卻至室溫,獲得包含B型黏度(23℃)125 mPas、固形物成分37.0重量%、溶液酸值27 mg-KOH/g之共聚物之樹脂B-1溶液。所產生之共聚物之重量平均分子量Mw為9200、分子量分佈為2.08。 使用GPC法,於下述條件下對上述合成例中所獲得之樹脂之聚苯乙烯換算重量平均分子量Mw及數量平均分子量Mn進行測定。 裝置;HLC-8120GPC(Tosoh(股)製造) 管柱;TSK-GELG2000HXL 管柱溫度;40℃ 溶劑;THF 流速;1.0 mL/min 受檢液固形物成分濃度;0.001~0.01質量% 注入量;50 μL 檢測器;RI 校正用標準物質;TSK STANDARD POLYSTYRENE F-40、F-4、F-288、A-2500、A-500(Tosoh(股)製造) [顏料分散液(A-1)之製備] C.I.顏料綠58                             13.0份 丙烯酸系顏料分散劑                  2.0份 丙二醇單甲醚乙酸酯                  85.0份 將以上成分混合,使用珠磨機使顏料充分地分散,藉此獲得顏料分散液(A-1)。 [顏料分散液(A-2)之製備] C.I.顏料黃138                           15.0份 丙烯酸系顏料分散劑                  4.5份 丙二醇單甲醚乙酸酯                  80.5份 將以上成分混合,使用珠磨機使顏料充分地分散,藉此獲得顏料分散液(A-2)。 [顏料分散液(A-3)之製備] C.I.顏料藍15:3                          12.0份 丙烯酸系顏料分散劑                  4.0份 丙二醇單甲醚乙酸酯                  84.0份 將以上成分混合,使用珠磨機使顏料充分地分散,藉此獲得顏料分散液(A-3)。 [顏料分散液(A-4)之製備] C.I.顏料黃150                           11.9份 丙烯酸系顏料分散劑                  5.4份 丙二醇單甲醚乙酸酯                  82.7份 將以上成分混合,使用珠磨機使顏料充分地分散,藉此獲得顏料分散液(A-4)。 [顏料分散液(A-5)之製備] C.I.顏料綠7                               11.0份 丙烯酸系顏料分散劑                  3.3份 丙二醇單甲醚乙酸酯                  81.3份 將以上成分混合,使用珠磨機使顏料充分地分散,藉此獲得顏料分散液(A-5)。 實施例1~4及比較例1~3 [著色感光性樹脂組合物之製備] 將表1記載之成分混合而獲得著色感光性樹脂組合物。再者,以著色感光性樹脂組合物之固形物成分成為表1之「固形物成分(%)」之方式混合丙二醇單甲醚乙酸酯。 [表1]       實施例 比較例 1 2 3 4 1 2 3 著色分散液(A1) 48 42 30 17 0 56 39 著色分散液(A2) 12 16 25 35 0 0 0 著色分散液(A3) 1 2 3 5 0 0 3 著色分散液(A4) 0 0 0 0 34 7 22 著色分散液(A5) 0 0 0 0 36 0 0 樹脂(B1) 9 9 9 9 8 9 9 聚合性化合物(C1) 3 3 3 3 3 3 3 聚合起始劑(D1) 0.3 0.3 0.3 0.3 0.3 0.3 0.3 聚合起始劑(D2) 0.7 0.7 0.7 0.6 0.6 0.7 0.6 聚合起始助劑(D3) 0.3 0.3 0.3 0.3 0.3 0.3 0.3 調平劑(F1) 0 0 0 0 0 0 0 固形物成分 % 18 18 18 18 18 18 18 於表1中,各成分係如下所示。 著色分散液(A1);上述所獲得之顏料分散液(A-1) 著色分散液(A2);上述所獲得之顏料分散液(A-2) 著色分散液(A3);上述所獲得之顏料分散液(A-3) 著色分散液(A4);上述所獲得之顏料分散液(A-4) 著色分散液(A5);上述所獲得之顏料分散液(A-5) 樹脂(B1);樹脂B-1溶液 聚合性化合物(C1);二季戊四醇六丙烯酸酯(KAYARAD DPHA;日本化藥(股)製造) 聚合起始劑(D1);N-苯甲醯氧基-1-(4-苯基巰基苯基)辛烷-1-酮-2-亞胺(Irgacure OXE 01;BASF公司製造;O-醯基肟化合物) 聚合起始劑(D2);下述式所表示之化合物之混合物(CHEMCURE-TCDM;Cambridge公司製造;聯咪唑化合物) [化10]
Figure 02_image019
聚合起始助劑(D3);2-巰基苯并噻唑(Soxinol M;住友化學(股)製造;下述式所表示之化合物) [化11]
Figure 02_image021
調平劑(F1);聚醚改性聚矽氧油(SH8400;Toray-Dow Corning(股)製造) [著色塗膜之製作] 利用旋轉塗佈法將著色感光性樹脂組合物塗佈於2吋見方之玻璃基板(Eagle XG;Corning公司製造)上後,於100℃下預烘烤3分鐘。冷卻後,使用曝光機(TME-150RSK;TOPCON(股)製造),於大氣環境下以150 mJ/cm2 之曝光量(365 nm基準)對該塗佈有著色感光性樹脂組合物之基板進行光照射。光照射後,於24℃下將所獲得之膜於包含非離子系界面活性劑0.12%與氫氧化鉀0.04%之水系顯影液中浸漬60秒鐘,藉此進行顯影,水洗後,於烘箱中於230℃下進行30分鐘之後烘烤,獲得著色塗膜。 反覆進行著色塗膜之製作與色度評價,調整塗佈著色感光性樹脂組合物時之旋轉塗佈之轉速,藉此獲得色度座標中x=0.235且y=0.620之著色塗膜。將所獲得之著色塗膜之亮度及膜厚示於表2。此時,亮度Y較佳為42以上,數值越高,製成面板時背光裝置之電力越可進行至少同等之顯示。 [膜厚測定] 對所獲得之著色塗膜使用膜厚測定裝置(DEKTAK3;日本真空技術(股)製造)測定膜厚。 [色度評價] 對所獲得之著色塗膜使用測色機(OSP-SP-200;Olympus(股)製造)測定光譜,使用C光源之特性函數,測定CIE之XYZ表色系統中之xy色度座標(x、y)與亮度Y。 [溶解時間(顯影溶解性)評價] 與上述同樣地,利用旋轉塗佈法將著色感光性樹脂組合物塗佈於2吋見方之玻璃基板(Eagle XG;Corning公司製造)上後,於100℃下預烘烤3分鐘。冷卻後,利用旋轉顯影機(SD-408R;Oshigane有限公司製造)以0.05 hPa噴射將包含非離子系界面活性劑0.12%與氫氧化鉀0.04%之水系顯影液,測定直至塗佈於基板上之膜全部溶解為止之時間。將結果示於表2。 [著色圖案之製作] 利用旋轉塗佈法將著色感光性樹脂組合物以成為表2所示之膜厚之方式塗佈於2吋見方之玻璃基板(Eagle XG;Corning公司製造)上,利用減壓乾燥機進行減壓乾燥直至130 Pa。其後,將該塗佈有著色感光性樹脂組合物之基板與具有圖案之石英玻璃製光罩的間隔設為100 μm,使用曝光機(TME-150RSK;TOPCON(股)製造),於大氣環境下以150 mJ/cm2 之曝光量(365 nm基準)進行光照射。再者,作為光罩,使用形成有50 μm線與間隙圖案之遮罩。光照射後,於24℃下將上述塗膜於包含非離子系界面活性劑0.12%與氫氧化鉀0.04%之水系顯影液中浸漬上述所測得之溶解時間+30秒鐘而進行顯影,水洗後,於烘箱中,於230℃下進行30分鐘之後烘烤,製作著色圖案。 [顯影類型] 於著色圖案製作中,於浸漬於顯影液中時,對未曝光部於顯影液中之溶解性進行確認。於溶解於顯影液中之情形時記作「○」,於伴有剝離片而確認到自玻璃基板剝離之固形物之情形時記作「×」而進行評價。將結果示於表2。於產生剝離片並且於顯影液中溶解之情形時,於製作著色圖案之步驟中,產生剝離片後附著於其他像素上,無法獲得正常之著色圖案,因此良率極度降低。 [圖案形狀] 於所製作之具有線與間隙圖案之著色圖案中,於獲得了30 μm之圖案之情形時,若形狀為正錐形則記作「○」,於形狀為倒錐形之情形時記作「×」而進行評價。將結果示於表2。 [表2]    實施例 比較例 1 2 3 4 1 2 3 膜厚 μm 3.0 2.9 2.7 2.7 2.2 3.2 2.6 亮度Y    46.2 45.9 44.9 42.9 39.1 44.8 41.4 溶解時間 55 51 48 49 93 83 55 顯影類型    × × × 圖案形狀    × × 確認到由實施例1~4之著色感光性樹脂組合物可形成膜厚處於適當之範圍內、且高亮度之著色塗膜。進而確認到於由各實施例之著色感光性樹脂組合物形成著色圖案時,於未曝光部中亦未產生剝離片而於顯影液中之溶解性良好,而且可獲得形狀良好之著色圖案。 另一方面,確認到由比較例1及比較例3之各著色感光性樹脂組合物獲得之著色塗膜之亮度較低,比較例2之著色感光性樹脂組合物難以薄膜化,膜厚變得厚於3 μm。並且,確認到於由比較例1~3之各著色感光性樹脂組合物形成著色圖案時,未曝光部之塗膜自玻璃基板剝離,產生固形物。進而,對於比較例1及2之各著色感光性樹脂組合物而言,無法獲得圖案形狀良好之塗膜。 [產業上之可利用性] 可由本發明之著色感光性樹脂組合物而製造在適當之膜厚內、顯影性良好且亮度較高之高精細彩色濾光片。The colored photosensitive resin composition of the present invention contains a colorant (A), a resin (B), a polymerizable compound (C), and a polymerization initiator (D). The colored photosensitive resin composition of the present invention preferably further contains a solvent (E). The colored photosensitive resin composition of the present invention may further include at least one selected from the group consisting of a leveling agent (F) and a thiol compound. As for the compound exemplified as each component in this specification, unless otherwise specified, it can be used alone or in combination of plural kinds. <Colorant (A)> In the colored photosensitive resin composition of the present invention, as the colorant (A), CI pigment green (hereinafter referred to as "PG") 58 and CI pigment yellow (hereinafter referred to as In the case of "PY") 138, it further includes a copper phthalocyanine compound selected from CI Pigment Blue (hereinafter referred to as "PB") 15:3 and CI Pigment Blue 15:4. Among them, it is preferable to include PG58, PY138, and PB15:3 as the colorant (A). In the colorant (A), the content of PG58 is preferably 15% by mass or more, more preferably 20% by mass or more, still more preferably 25% by mass or more, and preferably 90% by mass or less, more preferably 85 mass% % Or less, more preferably 80% by mass or less. In addition, in the colorant (A), the content of PY138 is preferably 10% by mass or more, more preferably 15% by mass or more, still more preferably 20% by mass or more, and preferably 80% by mass or less, more preferably 75% by mass or less, more preferably 70% by mass or less. In the colorant (A), the content of PB15:3 or PB15:4 is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, still more preferably 1% by mass or more, and preferably 12% by mass or less , More preferably 10% by mass or less, and still more preferably 9% by mass or less. In addition, relative to the total of 100 parts by mass of PG58 and PY138, the content of PB15:3 or PB15:4 is preferably 0.1 parts by mass or more and 30 parts by mass or less, more preferably 0.5 parts by mass or more and 20 parts by mass or less, and more It is preferably 0.8 parts by mass or more and 12 parts by mass or less. The content of PB15:3 or PB15:4 is usually 0.1-15 parts by mass, preferably 0.3-10 parts by mass, and more preferably 0.5-5 parts by mass, relative to 100 parts by mass of the total solid components in the composition . The total amount of the coloring agent (A) is usually 10-50 parts by mass with respect to 100 parts by mass of the total solid content of the colored photosensitive resin composition. From the viewpoint of designing a color filter of deep color, it is more Preferably, it is 30 to 48 parts by mass. Here, the "total amount of solid content" in this specification refers to the amount obtained by excluding the solvent content from the total amount of the colored photosensitive resin composition. The total amount of solid components and the content of each component relative to it can be measured, for example, by known analytical means such as liquid chromatography or gas chromatography. Pigment (A2) other than PG58, PY138, PB15:3, and PB15:4 may be further included as a coloring agent (A). As said pigment (A2), the pigment which is classified as a pigment by a color index (published by The Society of Dyers and Colourists), for example is mentioned. Examples of the pigment (A2) include CI Pigment Yellow 1, 3, 12, 13, 14, 15, 16, 17, 20, 24, 31, 53, 83, 86, 93, 94, 109, 110, 117 , 125, 128, 129, 137, 139, 147, 148, 153, 154, 166, 173, 194, 214 and other yellow pigments; CI pigment orange 13, 31, 36, 38, 40, 42, 43, 51, 55 , 59, 61, 64, 65, 71, 73 and other orange pigments; CI Pigment Green 7, 36 and other green pigments. When the pigment (A2) is included, the content of the colorant (A) is preferably 0.1% by mass or more and 40% by mass or less, more preferably 0.5% by mass or more and 30% by mass or less, and more preferably 1% by mass or more and 20% by mass or less. Regarding the content ratio of the colorant (A) to the following resin (B) (colorant (A)/resin (B)), for example, on a mass basis, it is preferably 1.3 or more, more preferably 1.5 or more, and more preferably It is 1.7 or more, and is preferably 4.00 or less, more preferably 3.00 or less, and still more preferably 2.50 or less. Moreover, in the present invention, the total content of PG58, PY138, PB15:3, and PB15:4 contained in the colorant (A) is preferably 80% by mass or more, more preferably 90% by mass in the colorant (A) Above, it is more preferably 95% by mass or more, particularly preferably 98% by mass or more, and most preferably 100% by mass. By using the colorant (A) as a combination of specific pigments, the obtained color filter can effectively exhibit brightness characteristics. PG58, PY138, PB15:3, PB15:4 or pigment (A2) can also be treated as needed: rosin treatment, surface treatment using pigment derivatives with acidic or basic groups introduced, use of polymer compounds, etc. Grafting treatment on the surface of the pigment, micronization treatment using sulfuric acid micronization method, etc., or cleaning treatment using organic solvent or water to remove impurities, removal treatment of ionic impurities by ion exchange method, etc. . The pigment preferably has a uniform particle size. By containing the pigment dispersant and performing the dispersion treatment, a pigment dispersion liquid in a state where the pigment is uniformly dispersed in the solution can be obtained. As said pigment dispersing agent, surfactant is mentioned, for example, It may be any one of a cationic, an anionic, nonionic, and amphoteric surfactant. Specifically, surfactants such as polyester-based, polyamine-based, and acrylic-based surfactants can be cited. These pigment dispersants may be used alone or in combination of two or more kinds. As pigment dispersants, trade names include KP (manufactured by Shin-Etsu Chemical Co., Ltd.), Flowlen (manufactured by Kyoeisha Chemical Co., Ltd.), Solsperse (registered trademark) (manufactured by Zeneca Co., Ltd.), and EFKA (registered Trademark) (manufactured by BASF Corporation), Ajisper (registered trademark) (manufactured by Ajinomoto Fine-Techno (stock)), Disperbyk (registered trademark) (manufactured by BYK-Chemie), etc. When using a pigment dispersant, relative to the total amount of the above-mentioned PG58, PY138, PB15:3, PB15:4 and pigment (A2), the usage amount is preferably 1% by mass or more and 100% by mass or less, more preferably It is 5% by mass or more and 50% by mass or less. If the amount of the pigment dispersant used is within the above range, there is a tendency to obtain a pigment dispersion in a uniformly dispersed state. <Resin (B)> The resin (B) is not particularly limited, but is preferably an alkali-soluble resin, and more preferably has at least one selected from the group consisting of unsaturated carboxylic acid and unsaturated carboxylic anhydride The structural unit of the polymer. As the resin (B), the following resins [K1] to [K6] and the like can be mentioned. Resin [K1] is selected from at least one type (a) (hereinafter referred to as "(a)") from the group consisting of unsaturated carboxylic acid and unsaturated carboxylic anhydride, and a ring having 2 to 4 carbon atoms It is a copolymer of the monomer (b) (hereinafter referred to as "(b)") with a crystalline ether structure and an ethylenically unsaturated bond. Resin [K2] (a) and (b) and (a) copolymerizable monomer (c) (among them, different from (a) and (b)) (hereinafter referred to as "(c)" ) The copolymer. Resin [K3] (a) and (c) copolymer. Resin [K4] is a resin obtained by reacting (b) with the copolymer of (a) and (c). Resin [K5] is a resin obtained by reacting (a) with the copolymer of (b) and (c). Resin [K6] is a resin obtained by reacting the copolymer of (a), (b) and (c), and further reacting carboxylic anhydride. Specific examples of (a) include unsaturated monocarboxylic acids such as acrylic acid, methacrylic acid, crotonic acid, ortho-vinyl benzoic acid, m-vinyl benzoic acid, and p-vinyl benzoic acid; maleic acid , Fumaric acid, citraconic acid, mesaconic acid, itaconic acid, 3-vinylphthalic acid, 4-vinylphthalic acid, 3,4,5,6-tetrahydrophthalic acid, Unsaturated dicarboxylic acids such as 1,2,3,6-tetrahydrophthalic acid, dimethyltetrahydrophthalic acid, 1,4-cyclohexene dicarboxylic acid;
Figure 110109077-A0304-12-01
En-2,3-dicarboxylic acid, 5-carboxybicyclo[2.2.1]hept-2-ene, 5,6-dicarboxybicyclo[2.2.1]hept-2-ene, 5-carboxy-5 -Methylbicyclo[2.2.1]hept-2-ene, 5-carboxy-5-ethylbicyclo[2.2.1]hept-2-ene, 5-carboxy-6-methylbicyclo[2.2. 1]Hept-2-ene, 5-carboxy-6-ethylbicyclo[2.2.1]hept-2-ene and other bicyclic unsaturated compounds containing carboxyl groups; maleic anhydride, citraconic anhydride, itaconic anhydride , 3-vinyl phthalic anhydride, 4-vinyl phthalic anhydride, 3,4,5,6-tetrahydrophthalic anhydride, 1,2,3,6-tetrahydrophthalic anhydride Unsaturated dicarboxylic acid anhydrides such as formic anhydride, dimethyltetrahydrophthalic anhydride, 5,6-dicarboxybicyclo[2.2.1]hept-2-ene anhydride (bicycloheptene dicarboxylic acid anhydride); succinate Mono [2-(meth)acryloyloxyethyl] ester, phthalic acid mono[2-(meth)acryloyloxyethyl] ester [(Meth)acryloxyalkyl] esters; unsaturated acrylic acid containing hydroxyl and carboxyl groups in the same molecule, such as α-(hydroxymethyl)acrylic acid. Among them, acrylic acid, methacrylic acid, maleic anhydride, etc. are preferred in terms of copolymerization reactivity or solubility of the obtained resin in an alkaline aqueous solution. (b) For example, it refers to a cyclic ether structure having a carbon number of 2 to 4 (for example, selected from the group consisting of an oxetane ring, an oxetane ring, and a tetrahydrofuran ring (oxolane ring) At least one) polymerizable compound with ethylenic unsaturated bond. (b) Preferably, it is a monomer having a cyclic ether having 2 to 4 carbon atoms and a (meth)acryloyloxy group. In addition, in this specification, the term "(meth)acrylic acid" means at least one selected from the group consisting of acrylic acid and methacrylic acid. Expressions such as "(meth)acryloyl" and "(meth)acrylate" also have the same meaning. Examples of (b) include: monomer (b1) having an oxetanyl group and an ethylenically unsaturated bond (hereinafter referred to as "(b1)"), and having an oxetanyl group and ethylenic properties Monomer with unsaturated bond (b2) (hereinafter referred to as "(b2)"), monomer with tetrahydrofuran group and ethylenically unsaturated bond (b3) (hereinafter referred to as "(b3)" )Wait. (b1) Examples include monomers (b1-1) having a structure obtained by epoxidizing linear or branched unsaturated aliphatic hydrocarbons (hereinafter referred to as "(b1-1)" Case), monomer (b1-2) having a structure formed by epoxidizing unsaturated alicyclic hydrocarbon (hereinafter referred to as "(b1-2)"). (B1-1) is preferably a monomer having a glycidyl group and an ethylenically unsaturated bond. Specific examples include: glycidyl (meth)acrylate, β-methylglycidyl (meth)acrylate, β-ethyl glycidyl (meth)acrylate, glycidyl vinyl ether, and o-vinyl Benzyl glycidyl ether, m-vinylbenzyl glycidyl ether, p-vinylbenzyl glycidyl ether, α-methyl-o-vinylbenzyl glycidyl ether, α-methyl-m-vinylbenzyl glycidyl Ether, α-methyl-p-vinylbenzyl glycidyl ether, 2,3-bis(glycidoxymethyl)styrene, 2,4-bis(glycidoxymethyl)styrene, 2, 5-bis(glycidoxymethyl)styrene, 2,6-bis(glycidoxymethyl)styrene, 2,3,4-tris(glycidoxymethyl)styrene, 2, 3,5-tris(glycidoxymethyl)styrene, 2,3,6-tris(glycidoxymethyl)styrene, 3,4,5-tris(glycidoxymethyl)benzene Ethylene, 2,4,6-tris(glycidoxymethyl)styrene, etc. Examples of (b1-2) include cyclohexene ethylene monoxide, 1,2-epoxy-4-vinylcyclohexane (for example, Celloxide (registered trademark) 2000; Daicel Chemical Industry Co., Ltd.), ( 3,4-epoxycyclohexyl methyl (meth)acrylate (for example, Cyclomer (registered trademark) A400; manufactured by Daicel Chemical Industry Co., Ltd.), 3,4-epoxycyclohexyl methyl (meth)acrylate (for example, Cyclomer M100; manufactured by Daicel Chemical Industry Co., Ltd.), the compound represented by formula (I), the compound represented by formula (II), etc. [化1]
Figure 02_image001
[In the formula (I) and Formula (II), R a and R b each independently represent a hydrogen atom, or an alkyl group having 1 to 4 carbon atoms, the hydrogen atoms contained in the alkyl group may be replaced by the hydroxyl group. X 1 and X 2 independently represent a single bond, *-R c -, *-R c -O-, *-R c -S-, and *-R c -NH-. R c represents an alkanediyl group having 1 to 6 carbon atoms. * Indicates the bond with O]. As R a, R b of the carbon atoms of the alkyl group having 1 to 4, include: methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, tert-butyl and the like. Examples of alkyl groups in which the hydrogen atoms of R a and R b are substituted with hydroxy include: hydroxymethyl, 1-hydroxyethyl, 2-hydroxyethyl, 1-hydroxypropyl, 2-hydroxypropyl, 3-hydroxy Propyl, 1-hydroxy-1-methylethyl, 2-hydroxy-1-methylethyl, 1-hydroxybutyl, 2-hydroxybutyl, 3-hydroxybutyl, 4-hydroxybutyl, etc. R a and R b are preferably a hydrogen atom, an alkyl group having 1 to 4 carbons, or a hydroxyalkyl group having 1 to 4 carbons, and more preferably a hydrogen atom or an alkyl group having 1 to 4 carbons, specifically Specifically, preferably, a hydrogen atom, a methyl group, an ethyl group, a hydroxymethyl group, a 1-hydroxyethyl group, and a 2-hydroxyethyl group are exemplified, and more preferably, a hydrogen atom and a methyl group are exemplified. Examples of the alkanediyl group of R c include linear or branched alkanediyl groups, specifically, methylene, ethylene, propane-1,3-diyl, butane-1, Linear alkanediyl groups such as 4-diyl, pentane-1,5-diyl, and hexane-1,6-diyl; branched chain alkanediyl groups such as propane-1,2-diyl, etc. As X 1 and X 2, is preferably a single bond, * - R c -, or * -R c -O-, more preferably a single bond, or * -R c -O-, specifically, may be preferred Examples include single bond, methylene group, ethylidene group, *-CH 2 -O- (* represents a bond to O) group, *-CH 2 CH 2 -O- group, more preferably single bond, *- CH 2 CH 2 -O- group. As the compound represented by formula (I), compounds represented by formula (I-1) to formula (I-15) and the like can be mentioned. Preferably, formula (I-1), formula (I-3), formula (I-5), formula (I-7), formula (I-9), formula (I-11) to formula (I- 15). More preferably, formula (I-1), formula (I-7), formula (I-9), and formula (I-15) can be cited. [化2]
Figure 02_image003
[化3]
Figure 02_image005
Examples of the compound represented by formula (II) include compounds represented by formula (II-1) to formula (II-15), and the like. Preferably, formula (II-1), formula (II-3), formula (II-5), formula (II-7), formula (II-9), formula (II-11) to formula (II- 15). More preferably, formula (II-1), formula (II-7), formula (II-9), and formula (II-15) can be cited. [化4]
Figure 02_image007
[化5]
Figure 02_image009
The compound represented by the formula (I) and the compound represented by the formula (II) can be used independently, respectively. In addition, these can be mixed in any ratio. In the case of mixing, the mixing ratio is calculated in molar ratio, preferably formula (I): formula (II) is 5:95 to 95:5, more preferably 10:90 to 90:10, and more preferably It is 20:80~80:20. The monomer (b2) having an oxetanyl group and an ethylenically unsaturated bond is more preferably a monomer having an oxetanyl group and a (meth)acryloxy group. Examples of (b2) include 3-methyl-3-methacryloxymethyloxetane, 3-methyl-3-methacryloxymethyloxetane, 3- Ethyl-3-methacryloxymethyloxetane, 3-ethyl-3-methacryloxymethyloxetane, 3-methyl-3-methacryloxy Ethyl oxetane, 3-methyl-3-propenyloxyethyl oxetane, 3-ethyl-3-methylpropenyloxyethyl oxetane, 3 -Ethyl-3-propenyloxyethyloxetane and the like. The monomer (b3) having a tetrahydrofuran group and an ethylenically unsaturated bond is more preferably a monomer having a tetrahydrofuran group and a (meth)acryloxy group. Specific examples of (b3) include tetrahydrofurfuryl acrylate (for example, Viscoat V#150, manufactured by Osaka Organic Chemical Industry Co., Ltd.), tetrahydrofurfuryl methacrylate, and the like. As (b), (b1) is preferable in terms of improving the reliability of the obtained color filter such as heat resistance and chemical resistance. Furthermore, since the storage stability of a colored photosensitive resin composition is excellent, (b1-2) is more preferable. Examples of (c) include: methyl (meth)acrylate, ethyl (meth)acrylate, n-butyl (meth)acrylate, second butyl (meth)acrylate, and first (meth)acrylate Tributyl ester, 2-ethylhexyl (meth)acrylate, lauryl (meth)acrylate, lauryl (meth)acrylate, stearyl (meth)acrylate, (meth)acrylate ring Amyl ester, cyclohexyl (meth)acrylate, 2-methylcyclohexyl (meth)acrylate, tricyclo[5.2.1.0 2,6 ]decane-8-yl (meth)acrylate (in this In the technical field, it is called "dicyclopentyl (meth)acrylate" by a common name. Also, it is called "tricyclodecyl (meth)acrylate"), tricyclic (meth)acrylate [5.2 .1.0 2,6 ] decene-8-yl ester (in this technical field, it is called "dicyclopentenyl (meth)acrylate"), dicyclopentyloxyethyl (meth)acrylate , (Meth)acrylic acid
Figure 110109077-A0304-12-01
Base ester, adamantyl (meth)acrylate, allyl (meth)acrylate, propargyl (meth)acrylate, phenyl (meth)acrylate, naphthyl (meth)acrylate, (meth) (Meth)acrylates such as benzyl acrylate; (meth)acrylates containing hydroxyl groups such as 2-hydroxyethyl (meth)acrylate and 2-hydroxypropyl (meth)acrylate; Diethyl maleate Ester, diethyl fumarate, diethyl itconate and other dicarboxylic acid diesters; bicyclo[2.2.1]hept-2-ene, 5-methylbicyclo[2.2.1]hept-2- Ene, 5-ethylbicyclo[2.2.1]hept-2-ene, 5-hydroxybicyclo[2.2.1]hept-2-ene, 5-hydroxymethylbicyclo[2.2.1]hept-2 -Ene, 5-(2'-hydroxyethyl)bicyclo[2.2.1]hept-2-ene, 5-methoxybicyclo[2.2.1]hept-2-ene, 5-ethoxydi Cyclo[2.2.1]hept-2-ene, 5,6-dihydroxybicyclo[2.2.1]hept-2-ene, 5,6-bis(hydroxymethyl)bicyclo[2.2.1]hept- 2-ene, 5,6-bis(2'-hydroxyethyl)bicyclo[2.2.1]hept-2-ene, 5,6-dimethoxybicyclo[2.2.1]hept-2-ene , 5,6-diethoxybicyclo[2.2.1]hept-2-ene, 5-hydroxy-5-methylbicyclo[2.2.1]hept-2-ene, 5-hydroxy-5-ethyl Bicyclo[2.2.1]hept-2-ene, 5-hydroxymethyl-5-methylbicyclo[2.2.1]hept-2-ene, 5-tert-butoxycarbonylbicyclo[2.2. 1]Hept-2-ene, 5-cyclohexoxycarbonylbicyclo[2.2.1]hept-2-ene, 5-phenoxycarbonylbicyclo[2.2.1]hept-2-ene, 5,6 -Bis(tertiary butoxycarbonyl)bicyclo[2.2.1]hept-2-ene, 5,6-bis(cyclohexoxycarbonyl)bicyclo[2.2.1]hept-2-ene, etc. Unsaturated compounds; N-phenylmaleimide, N-cyclohexylmaleimide, N-benzylmaleimide, N-butanediimidate-3-maleimide Amino benzoate, N-succinimidyl-4-maleiminobutyrate, N-succinimidyl-6-maleiminohexanoate, N-butanedi Dicarbonyl iminium derivatives such as amide-3-maleimide propionate, N-(9-acridinyl) maleimide; styrene, α-methylstyrene, Aromatic compounds containing vinyl groups such as m-methylstyrene, p-methylstyrene, vinyl toluene, and p-methoxystyrene; vinyl-containing nitriles such as acrylonitrile and methacrylonitrile; vinyl chloride, vinylidene Halogenated hydrocarbons such as vinyl chloride; vinyl-containing amides such as acrylamide and methacrylamide; vinyl acetate; 1,3-butadiene, isoprene, 2,3-dimethyl-1, Dienes such as 3-butadiene, etc. Among them, as (c), in terms of copolymerization reactivity and heat resistance, (meth)acrylates, vinyl-containing aromatic compounds, dicarbonylimidine derivatives, and dicarbonyl amide derivatives are preferred in terms of copolymerization reactivity and heat resistance. Ring unsaturated compounds. Specifically, benzyl (meth)acrylate, tricyclodecyl (meth)acrylate, styrene, N-phenylmaleimide, N-cyclohexylmaleimide, N- Benzylmaleimide, bicyclo[2.2.1]hept-2-ene, etc. Moreover, in terms of excellent developability at the time of pattern formation, benzyl (meth)acrylate and tricyclodecyl (meth)acrylate are more preferable. In the resin [K1], the ratio of the structural units derived from (a) and (b) is preferably in the following range among all the structural units constituting the resin [K1]. The structural unit derived from (a); 2-50 mol% (more preferably 10-45 mol%) The structural unit derived from (b); 50-98 mol% (more preferably 55-90 mol%) %) If the ratio of the structural unit of the resin [K1] is within the above range, the storage stability, developability, and solvent resistance of the obtained pattern tend to be excellent. For resin [K1], for example, refer to the method described in the document "Experimental Method of Polymer Synthesis" (Otsu Takayuki's publishing unit, Chemical Doujin (Stock), 1st Edition, 1st Edition, issued on March 1, 1972) and the description in the document Manufactured by citing literature. Specifically, the following method can be cited: adding specific amounts of (a) and (b), a polymerization initiator, a solvent, and the like to a reaction vessel, and stirring, heating, and keeping the temperature in a deoxidized environment. In addition, the polymerization initiator, solvent, etc. used here are not particularly limited, and any one that is generally used in this field can be used. For example, as the polymerization initiator, azo compounds (2,2'-azobisisobutyronitrile, 2,2'-azobis(2,4-dimethylvaleronitrile), etc.) or organic peroxides can be cited As the solvent (benzyl peroxide, etc.), as long as each monomer is dissolved, the solvent (E) described below as a solvent for the colored photosensitive resin composition and the like can be used. Furthermore, the obtained copolymer can be directly used as a solution after the reaction, a concentrated or diluted solution can also be used, and a solid (powder) taken out by methods such as reprecipitation can also be used. In particular, since the following solvent (E) is used as a solvent during the polymerization, the solution after the reaction can be used as it is, so that the manufacturing steps can be simplified. In the resin [K2], the ratio of the structural units derived from (a), (b), and (c) is preferably within the following range among all the structural units constituting the resin [K2]. Structural unit derived from (a); 4~45 mol% (more preferably 10-30 mol%) Structural unit derived from (b); 2~95 mol% (more preferably 5~80 mol%) %) The structural unit derived from (c); 1~65 mol% (more preferably 5~60 mol%) If the ratio of the structural unit of the resin [K2] is within the above range, there will be storage stability and development The tendency of excellent performance, solvent resistance, heat resistance and mechanical strength of the obtained pattern. The resin [K2] can be manufactured in the same manner as described as the manufacturing method of the resin [K1], for example. Specifically, the following method can be cited: adding specific amounts of (a), (b), and (c), a polymerization initiator, and a solvent to a reaction vessel, and stirring, heating, and insulating in a deoxygenated environment. The obtained copolymer can be directly used as a solution after the reaction, or as a concentrated or diluted solution, or as a solid (powder) taken out by methods such as reprecipitation. In the resin [K3], the ratio of the structural units derived from (a) and (c) is preferably in the following range among all the structural units constituting the resin [K3]. (a) 2-55 mol%, more preferably 10-50 mol% (c) 45-98 mol%, more preferably 50-90 mol% Resin [K3] can be used as resin [K1], for example Manufactured in the same way as described in the manufacturing method. Resin [K4] can be manufactured by: obtaining a copolymer of (a) and (c), adding the cyclic ether with 2 to 4 carbons in (b) to the carboxylic acid in (a) And/or carboxylic anhydride. First, the copolymer of (a) and (c) is produced in the same manner as the method described as the production method of resin [K1]. In this case, the ratio of the structural units derived from (a) and (c) is preferably within the following range among all the structural units constituting the copolymer of (a) and (c). (a) 5~50 mol%, more preferably 10~45 mol% (c) 50~95 mol%, more preferably 55~90 mol%. Then, the carbon number of (b) is 2 The cyclic ether of ~4 reacts with a part of the carboxylic acid and/or carboxylic anhydride derived from (a) in the above-mentioned copolymer. After the copolymer of (a) and (c) is produced, the atmosphere in the flask is replaced by nitrogen to air, and the reaction catalyst of (b), carboxylic acid or carboxylic anhydride and cyclic ether (for example, tris(dimethylamino) (Methyl)phenol, etc.), polymerization inhibitors (for example, hydroquinone, etc.), etc. are placed in a flask and reacted at 60 to 130°C for 1 to 10 hours, to obtain resin [K4]. Relative to (a) 100 mols, the usage amount of (b) is preferably 5 to 80 mols, and more preferably 10 to 75 mols. By setting it as this range, there exists a tendency for the balance of storage stability, developability, solvent resistance, heat resistance, mechanical strength, and sensitivity to become favorable. In terms of the high reactivity of the cyclic ether and the less likely to remain unreacted (b), the (b) used in the resin [K4] is preferably (b1), and more preferably (b1- 1). The amount of the reaction catalyst used is preferably 0.001 to 5% by mass relative to the total amount of (a), (b), and (c). The amount of the polymerization inhibitor used is preferably 0.001 to 5% by mass relative to the total amount of (a), (b), and (c). The reaction conditions such as the method of adding each reagent, the reaction temperature, and the reaction time can be appropriately adjusted in consideration of the manufacturing equipment or the heat of polymerization. In addition, similarly to the polymerization conditions, the addition method or the reaction temperature can be appropriately adjusted in consideration of the manufacturing equipment or the calorific value of the polymerization. In the production of resin [K5], as the first stage, the copolymer of (b) and (c) is obtained in the same manner as the above-mentioned production method of resin [K1]. Similar to the above, the obtained copolymer can be directly used as a solution after the reaction, a concentrated or diluted solution, or a solid (powder) taken out by methods such as reprecipitation can also be used. In the first stage, the ratio of the structural units derived from (b) and (c) is preferably relative to the total number of moles of all structural units constituting the copolymer of (b) and (c) above Within the following range. The structural unit derived from (b); 5~95 mol% (more preferably 10~90 mol%) The structural unit derived from (c); 5~95 mol% (more preferably 10~90 mol%) %) Furthermore, as the second stage, the carboxylic acid or carboxylic anhydride contained in (a) can be made into the copolymer of (b) and (c) under the same conditions as the production method of resin [K4]. The cyclic ether derived from (b) reacts to obtain resin [K5]. In the second stage, the amount of (a) used to react with the copolymer of (b) and (c) above is preferably 5 to 80 mol relative to (b) 100 mol. In terms of the high reactivity of the cyclic ether and the less likely to remain unreacted (b), the (b) used in the resin [K5] is preferably (b1), and more preferably (b1- 1). Resin [K6] is a resin obtained by further reacting carboxylic anhydride with resin [K5]. It can be produced by reacting a carboxylic anhydride with a hydroxyl group produced by the reaction of the cyclic ether (a) derived from (b) with a carboxylic acid or a carboxylic anhydride. Examples of carboxylic anhydrides include maleic anhydride, citraconic anhydride, itaconic anhydride, 3-vinylphthalic anhydride, 4-vinylphthalic anhydride, 3,4,5,6-tetrahydroophthalic anhydride, Phthalic anhydride, 1,2,3,6-tetrahydrophthalic anhydride, dimethyltetrahydrophthalic anhydride, 5,6-dicarboxybicyclo[2.2.1]hept-2-ene Anhydride (bicycloheptene dicarboxylic acid anhydride) and the like. The usage amount of carboxylic anhydride is preferably 0.5 to 1 mol relative to 1 mol of the usage amount of (a). Specific examples of the resin (B) include: 3,4-epoxycyclohexylmethyl (meth)acrylate/(meth)acrylic acid copolymer, 3,4-epoxy tricyclic acrylic acid [5.2.1.0 2 ,6 ] Resins such as decyl ester/(meth)acrylic acid copolymer [K1]; (meth)glycidyl acrylate/(meth)acrylic acid benzyl ester/(meth)acrylic acid copolymer, (meth)acrylic acid shrinkage Glyceride/styrene/(meth)acrylic acid copolymer, acrylic acid 3,4-epoxy tricyclo[5.2.1.0 2,6 ]decyl ester/(meth)acrylic acid/N-cyclohexylmaleimide copolymer Resins such as 3-methyl-3-(meth)acryloyloxymethyloxetane/(meth)acrylic acid/styrene copolymer [K2]; benzyl (meth)acrylate/( Resins such as meth)acrylic acid copolymer, styrene/(meth)acrylic acid copolymer, benzyl (meth)acrylate/tricyclodecyl (meth)acrylate/(meth)acrylic acid copolymer [K3]; Resin made by adding glycidyl (meth)acrylate to benzyl (meth)acrylate/(meth)acrylic acid copolymer, based on tricyclodecyl (meth)acrylate/styrene/(meth)acrylic acid A resin made by adding glycidyl (meth)acrylate to the copolymer, and adding (meth) ) Resins made of glycidyl acrylate and other resins [K4]; Resins made by reacting (meth)acrylic acid with a copolymer of tricyclodecyl (meth)acrylate/glycidyl (meth)acrylate, making (Meth)acrylic acid and (meth)acrylate tricyclodecyl ester/styrene/(meth)acrylate glycidyl ester copolymer resin and other resins [K5]; and then tetrahydrophthalic anhydride Resins such as resins [K6] etc. which are reacted with resins formed by reacting (meth)acrylic acid and tricyclodecyl (meth)acrylate/glycidyl (meth)acrylate copolymers. These resins may be used alone or in combination of two or more kinds. Among them, as the resin (B), the resin [K1] and the resin [K2] are preferable, and the resin [K1] is more preferable. The weight average molecular weight in terms of polystyrene of the resin (B) is preferably 3,000 to 100,000, more preferably 5,000 to 50,000, and still more preferably 5,000 to 30,000. If the molecular weight is within the above range, the solubility of the unexposed part in the developer is higher, and the residual film rate or hardness of the obtained pattern tends to be higher. The molecular weight distribution [weight average molecular weight (Mw)/number average molecular weight (Mn)] of the resin (B) is preferably 1.1-6, more preferably 1.2-4. The acid value of the resin (B) is preferably 50 to 180 mg-KOH/g, more preferably 60 to 150 mg-KOH/g. The acid value here is a value measured in the form of the amount of potassium hydroxide (mg) necessary to neutralize 1 g of the resin, and it can be determined, for example, by titration using an aqueous potassium hydroxide solution. In the solid component of the colored photosensitive resin composition, the content of the resin (B) is preferably 7 to 65% by mass, more preferably 13 to 60% by mass, and still more preferably 17 to 55% by mass. If the content of the resin (B) is within the above-mentioned range, the unexposed part tends to have higher solubility in the developer. <Polymerizable compound (C)> The weight average molecular weight of the polymerizable compound (C) is preferably 3,000 or less. The polymerizable compound (C) is not particularly limited as long as it is a compound that can be polymerized by living radicals or the like. The living radical is generated by the polymerization initiator (D) by irradiation with light, and the polymerizable compound (C) ) For example, a compound having a polymerizable ethylenic unsaturated bond and the like can be mentioned. Among them, the polymerizable compound (C) is preferably a photopolymerizable compound having 3 or more ethylenically unsaturated bonds, for example, trimethylolpropane tri(meth)acrylate, pentaerythritol tris (meth) Base) acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol penta(meth)acrylate, dipentaerythritol hexa(meth)acrylate, tripentaerythritol octa(meth)acrylate, tripentaerythritol hepta(meth)acrylate )Acrylate, pentaerythritol deca(meth)acrylate, pentaerythritol non(meth)acrylate, tris(2-(meth)acryloxyethyl) isocyanurate, ethylene glycol modified pentaerythritol Tetra(meth)acrylate, ethylene glycol modified dipentaerythritol hexa(meth)acrylate, propylene glycol modified pentaerythritol tetra(meth)acrylate, propylene glycol modified dipentaerythritol hexa(meth)acrylate, caprolone Ester-modified pentaerythritol tetra(meth)acrylate, caprolactone-modified dipentaerythritol hexa(meth)acrylate, etc. Among them, dipentaerythritol penta(meth)acrylate, dipentaerythritol hexa(meth)acrylate, and the like can be cited. The weight average molecular weight of the polymerizable compound (C) is preferably 150 or more and 2,900 or less, more preferably 250 or more and 1,500 or less. In the total amount of solid components, the content of the polymerizable compound (C) is preferably 7 to 65% by mass, more preferably 13 to 60% by mass, and still more preferably 15 to 55% by mass. When the content of the polymerizable compound (C) is within the above-mentioned range, the residual film rate at the time of forming the colored pattern and the chemical resistance of the color filter tend to improve. The content of the polymerizable compound (C) is preferably 20 to 150 parts by mass relative to 100 parts by mass of the resin (B) in the colored photosensitive resin composition. <Polymerization initiator (D)> The polymerization initiator (D) is not particularly limited as long as it generates living radicals by the action of light or heat to initiate polymerization of the polymerizable compound (C). A well-known radical polymerization initiator. The polymerization initiator (D) is preferably a compound that generates active radicals by the action of light, more preferably a phenalkyl ketone compound, three
Figure 110109077-A0304-12-02
Compounds, oxime phosphine oxide compounds, oxime compounds (especially O-oxime compounds), and imidazole compounds are particularly preferred as polymerization initiators containing oxime compounds. The above-mentioned phenalkyl ketone compound is a compound having a partial structure represented by the formula (d1) or a partial structure represented by the formula (d2). In these partial structures, the benzene ring may have a substituent. In the following, * represents a bonding bond. [化6]
Figure 02_image011
As a compound having a partial structure represented by formula (d1), for example, 2-methyl-2-
Figure 110109077-A0304-12-03
Linyl-1-(4-methylmercaptophenyl)propan-1-one, 2-dimethylamino-1-(4-
Figure 110109077-A0304-12-03
Linylphenyl)-2-benzylbutane-1-one, 2-(dimethylamino)-2-[(4-methylphenyl)methyl]-1-[4-(4-
Figure 110109077-A0304-12-03
(Hydroxy)phenyl]butan-1-one and the like. Commercial products such as Irgacure (registered trademark) 369, 907, and 379 (the above are made by BASF Corporation) can also be used. As a compound having a partial structure represented by the formula (d2), for example, 2-hydroxy-2-methyl-1-phenylpropane-1-one, 2-hydroxy-2-methyl-1-[4 -(2-Hydroxyethoxy)phenyl)propane-1-one, 1-hydroxycyclohexylphenyl ketone, 2-hydroxy-2-methyl-1-(4-isopropenylphenyl)propane-1 -Oligomers of ketones, α,α-diethoxy acetophenone, benzyl dimethyl ketal, etc. In terms of sensitivity, the phenalkyl ketone compound is preferably a compound having a partial structure represented by formula (d1). As the above three
Figure 110109077-A0304-12-02
Examples of compounds include: 2,4-bis(trichloromethyl)-6-(4-methoxyphenyl)-1,3,5-tri
Figure 110109077-A0304-12-02
, 2,4-bis(trichloromethyl)-6-(4-methoxynaphthyl)-1,3,5-tri
Figure 110109077-A0304-12-02
, 2,4-bis(trichloromethyl)-6-sunflower-1,3,5-tri
Figure 110109077-A0304-12-02
, 2,4-bis(trichloromethyl)-6-(4-methoxystyryl)-1,3,5-tri
Figure 110109077-A0304-12-02
, 2,4-bis(trichloromethyl)-6-[2-(5-methylfuran-2-yl)vinyl]-1,3,5-tri
Figure 110109077-A0304-12-02
, 2,4-bis(trichloromethyl)-6-[2-(furan-2-yl)vinyl]-1,3,5-tri
Figure 110109077-A0304-12-02
, 2,4-bis(trichloromethyl)-6-[2-(4-diethylamino-2-methylphenyl)vinyl]-1,3,5-tri
Figure 110109077-A0304-12-02
, 2,4-bis(trichloromethyl)-6-[2-(3,4-dimethoxyphenyl)vinyl]-1,3,5-tri
Figure 110109077-A0304-12-02
Wait. As said acylphosphine oxide compound, 2,4,6-trimethylbenzyl diphenyl phosphine oxide etc. are mentioned. Commercial products such as Irgacure (registered trademark) 819 (manufactured by BASF Corporation) can also be used. The oxime compound is preferably an O-acyl oxime compound. The above-mentioned O-acyl oxime compound is a compound having a partial structure represented by formula (d3). [化7]
Figure 02_image013
As the above-mentioned O-anisyl oxime compound, for example, N-benzyloxy-1-(4-phenylmercaptophenyl)butan-1-one-2-imine, N-benzyloxy -1-(4-phenylmercaptophenyl)octane-1-one-2-imine, N-benzyloxy-1-(4-phenylmercaptophenyl)-3-cyclopentylpropane -1-keto-2-imine, N-acetoxy-1-[9-ethyl-6-(2-methylbenzyl)-9H-carbazol-3-yl]ethane- 1-imine, N-acetoxy-1-[9-ethyl-6-{2-methyl-4-(3,3-dimethyl-2,4-dioxolylmethyl Oxy)benzyl}-9H-carbazol-3-yl]ethane-1-imine, N-acetoxy-1-[9-ethyl-6-(2-methylbenzyl) (Acidyl)-9H-carbazol-3-yl]-3-cyclopentylpropane-1-imine, N-benzyloxy-1-[9-ethyl-6-(2-methylbenzene) Formyl)-9H-carbazol-3-yl]-3-cyclopentylpropan-1-one-2-imine, N-acetoxy-1-[4-{4-(2-hydroxyl Ethoxy)phenyl}mercaptophenyl]-propan-1-one-2-imine and the like. Commercial products such as Irgacure (registered trademark) OXE01, OXE02 (above, manufactured by BASF Corporation), and N-1919 (manufactured by ADEKA Corporation) can also be used. Among them, the O- oxime compound is preferably selected from the group consisting of N-benzyloxy-1-(4-phenylmercaptophenyl)butan-1-one-2-imine, N-benzyloxy 1-(4-phenylmercaptophenyl)octane-1-one-2-imine, N-benzyloxy-1-(4-phenylmercaptophenyl)-3-cyclopentyl Propan-1-one-2-imine and N-acetoxy-1-[4-{4-(2-hydroxyethoxy)phenyl}mercaptophenyl]-propan-1-one-2- At least one of the group consisting of imines, more preferably selected from N-benzyloxy-1-(4-phenylmercaptophenyl)octane-1-one-2-imine and N- At least one of the group consisting of acetoxy-1-[4-{4-(2-hydroxyethoxy)phenyl}mercaptophenyl]-propan-1-one-2-imine. In the case of these O-acetoxime compounds, there is a tendency to obtain a high-brightness color filter. As the imidazole compound, specifically, for example, 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetraphenylbiimidazole, 2,2'-bis(2 ,3-Dichlorophenyl)-4,4',5,5'-tetraphenylbiimidazole (for example, refer to Japanese Patent Laid-Open No. 6-75372, Japanese Patent Laid-Open No. 6-75373, etc.), 2 ,2'-bis(2-chlorophenyl)-4,4',5,5'-tetraphenylbiimidazole, 2,2'-bis(2-chlorophenyl)-4,4',5, 5'-tetra(alkoxyphenyl)biimidazole, 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetra(dialkoxyphenyl)biimidazole, 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetra(trialkoxyphenyl)biimidazole (for example, refer to Japanese Patent Publication No. 48-38403, Japanese Patent Japanese Patent Laid-Open No. 62-174204 etc.), 4,4',5,5'-position phenyl group substituted with carbon alkoxy imidazole compound (for example, refer to Japanese Patent Laid-Open No. 7-10913 etc.). Among them, the compound represented by formula (d4) is preferred. [化8]
Figure 02_image015
[In formula (d4), R d7 to R d10 each independently represent a hydrogen atom or an alkoxy group (preferably an alkoxy group having 1 to 4 carbon atoms, more preferably a methoxy group). R d11 and R d12 each independently represent a hydrogen atom or a halogen atom (preferably a chlorine atom)]. Specific examples of the compound represented by the above formula (d4) include compounds represented by the following formula, and a mixture of these is preferred. [化9]
Figure 02_image017
As the polymerization initiator (D), benzoin compounds such as benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, and benzoin isobutyl ether; benzophenone, methyl phthalate, 4-phenylbenzophenone, 4-benzyl-4'-methyl diphenyl sulfide, 3,3',4,4'-tetra(tert-butylperoxycarbonyl)benzophenone , 2,4,6-trimethylbenzophenone and other benzophenone compounds; 9,10-phenanthrenequinone, 2-ethylanthraquinone, camphorquinone and other quinone compounds; 10-butyl-2-chloro acridine Pyridone, benzil, methyl phenylglyoxylate, titanocene compounds, etc. These are preferably used in combination with the following polymerization initiation aids (D1) (especially amines). Among them, the polymerization initiator (D) is preferably one or more selected from phenalkyl ketone compounds, oxime compounds (especially O-acyl oxime compounds) and imidazole compounds, and more preferably selected from oximes One or more of compounds (especially O-acetoxime compounds) and imidazole compounds. In addition, the polymerization initiator (D) may be combined with two or more types, or may be combined with the following polymerization initiator (D1). It is preferable to combine two or more kinds of polymerization initiators (D) and polymerization initiators (D1). In addition, as the polymerization initiator (D), it is preferable to include at least one of an oxime compound (especially an O-acyl oxime compound) and an imidazole compound, and it is more preferable to include an oxime compound (especially an O-acyl oxime compound). ) Both with imidazole compounds. When the oxime compound and the imidazole compound are used in combination, the content ratio is preferably 1:9-9:1 on a mass basis, more preferably 2:8-8:2, and still more preferably 4:6 ~6:4. The content of the polymerization initiator (D) is preferably 0.1 to 30 parts by mass, and more preferably 1 to 20 parts by mass relative to 100 parts by mass of the total amount of the resin (B) and the polymerizable compound (C). If the content of the polymerization initiator (D) is within the above range, there is a tendency to increase sensitivity and shorten the exposure time, so the productivity of the color filter improves. The colored photosensitive resin composition of the present invention may also contain a polymerization initiation assistant (D1). When the polymerization initiator (D1) is included, it is usually used in combination with the polymerization initiator (D). The polymerization start auxiliary agent (D1) is a compound or a sensitizer for accelerating the polymerization of the polymerizable compound (C) that starts polymerization by the polymerization initiator (D). Examples of the polymerization initiation aid (D1) include amine compounds, alkoxyanthracene compounds, and 9-oxysulfur
Figure 110109077-A0304-12-04
Figure 110109077-A0304-12-05
The compound, carboxylic acid compound, thiol compound, etc. are preferably thiol compounds. These polymerization initiation assistants may be used alone or in combination of two or more kinds. Examples of the above-mentioned amine compounds include alkanolamines such as triethanolamine, methyldiethanolamine, and triisopropanolamine; methyl 4-dimethylaminobenzoate, ethyl 4-dimethylaminobenzoate, 4-dimethylaminobenzoic acid isoamyl ester, benzoic acid 2-dimethylaminoethyl ester, 4-dimethylaminobenzoic acid 2-ethylhexyl ester and other amino benzoic acid esters; N, N-Dimethyl p-toluidine; 4,4'-bis(dimethylamino)benzophenone (commonly known as Michele ketone), 4,4'-bis(diethylamino)benzophenone , 4,4'-bis(ethylmethylamino)benzophenone and other alkylamino benzophenones, etc. Among them, alkylamino benzophenone is preferred, and 4,4 is preferred. '-Bis(diethylamino)benzophenone. Commercial products such as EAB-F (manufactured by Hodogaya Chemical Co., Ltd.) can also be used. Examples of the above-mentioned alkoxyanthracene compounds include: 9,10-dimethoxyanthracene, 2-ethyl-9,10-dimethoxyanthracene, 9,10-diethoxyanthracene, 2-ethyl -9,10-diethoxyanthracene, 9,10-dibutoxyanthracene, 2-ethyl-9,10-dibutoxyanthracene, etc. As the above 9-oxysulfur
Figure 110109077-A0304-12-04
Figure 110109077-A0304-12-05
Compounds include: 2-isopropyl 9-oxysulfur
Figure 110109077-A0304-12-04
Figure 110109077-A0304-12-05
, 4-isopropyl 9-oxysulfur
Figure 110109077-A0304-12-04
Figure 110109077-A0304-12-05
, 2,4-Diethyl 9-oxysulfur
Figure 110109077-A0304-12-04
Figure 110109077-A0304-12-05
, 2,4-Dichloro 9-oxysulfur
Figure 110109077-A0304-12-04
Figure 110109077-A0304-12-05
, 1-Chloro-4-propoxy 9-oxysulfur
Figure 110109077-A0304-12-04
Figure 110109077-A0304-12-05
Wait. Examples of the carboxylic acid compound include: phenylthioglycolic acid, methylphenylthioglycolic acid, ethylphenylthioglycolic acid, methylethylphenylthioglycolic acid, dimethylphenylthioglycolic acid, and methoxyphenyl Thioglycolic acid, dimethoxyphenyl thioglycolic acid, chlorophenyl thioglycolic acid, dichlorophenyl thioglycolic acid, N-phenylglycine, phenoxyacetic acid, naphthylthioacetic acid, N-naphthylglycine , Naphthoxyacetic acid, etc. The thiol compound is a compound having a mercapto group (-SH) in the molecule. Examples of compounds having one mercapto group in the molecule include: 2-mercapto group
Figure 110109077-A0304-12-06
Azole, 2-mercaptothiazole, 2-mercaptobenzimidazole, 2-mercaptobenzothiazole, 2-mercaptobenzo
Figure 110109077-A0304-12-06
Azole, 2-mercaptonicotinic acid, 2-mercaptopyridine, 2-mercaptopyridine-3-ol, 2-mercaptopyridine-N-oxide, 4-amino-6-hydroxy-2-mercaptopyrimidine, 4-amine 6-hydroxy-2-mercaptopyrimidine, 4-amino-2-mercaptopyrimidine, 6-amino-5-nitroso-2-thiouracil, 4,5-diamino-6-hydroxy- 2-mercaptopyrimidine, 4,6-diamino-2-mercaptopyrimidine, 2,4-diamino-6-mercaptopyrimidine, 4,6-dihydroxy-2-mercaptopyrimidine, 4,6-dimethyl -2-Mercaptopyrimidine, 4-hydroxy-2-mercapto-6-methylpyrimidine, 4-hydroxy-2-mercapto-6-propylpyrimidine, 2-mercapto-4-methylpyrimidine, 2-mercaptopyrimidine, 2 -Thiouracil, 3,4,5,6-tetrahydropyrimidine-2-thiol, 4,5-dibenzimidazole-2-thiol, 2-mercaptoimidazole, 2-mercapto-1-methylimidazole, 4-Amino-3-hydrazino-5-mercapto-1,2,4-triazole, 3-amino-5-mercapto-1,2,4-triazole, 2-methyl-4H-1, 2,4-Triazole-3-thiol, 4-methyl-4H-1,2,4-triazole-3-thiol, 3-mercapto-1H-1,2,4-triazole-3- Thiol, 2-amino-5-mercapto-1,3,4-thiadiazole, 5-amino-1,3,4-thiadiazole-2-thiol, 2,5-dimercapto-1 , 3,4-thiadiazole, (furan-2-yl) methyl mercaptan, 2-mercapto-5-tetrahydrothiazole, 2-mercaptothiazoline, 2-mercapto-4(3H)-quinazolinone, 1-Phenyl-1H-tetrazole-5-thiol, 2-quinolinethiol, 2-mercapto-5-methylbenzimidazole, 2-mercapto-5-nitrobenzimidazole, 6-amino -2-Mercaptobenzothiazole, 5-chloro-2-mercaptobenzothiazole, 6-ethoxy-2-mercaptobenzothiazole, 6-nitro-2-mercaptobenzothiazole, 2-mercaptonaphthimidazole , 2-mercaptonaphtho
Figure 110109077-A0304-12-06
Azole, 3-mercapto-1,2,4-triazole, 4-amino-6-mercaptopyrazolo[2,4-d]pyridine, 2-amino-6-purine thiol, 6-mercaptopurine , 4-Mercapto-1H-pyrazolo[2,4-d]pyrimidine, etc. Examples of compounds having two or more mercapto groups in the molecule include hexamethylene dithiol, decane dithiol, 1,4-bis(methylmercapto)benzene, butanediol bis(3-mercaptopropionate), Butanediol bis(3-mercaptoacetate), ethylene glycol bis(3-mercaptoacetate), trimethylolpropane tris(3-mercaptoacetate), butanediol bis(3-mercaptopropane) Acid ester), trimethylolpropane tris(3-mercaptopropionate), trimethylolpropane tris(3-mercaptoacetate), pentaerythritol tetra(3-mercaptopropionate), pentaerythritol tetra(3- Mercaptoacetate), trihydroxyethyl tris(3-mercaptopropionate), pentaerythritol tetra(3-mercaptobutyrate), 1,4-bis(3-mercaptobutoxy)butane, etc. As the thiol compound, a compound having one mercapto group in the molecule is preferred. The content of the thiol compound is preferably 0.5 to 20 parts by mass, and more preferably 1 to 15 parts by mass relative to 100 parts by mass of the polymerization initiator (D). If the content of the thiol compound is within this range, the sensitivity becomes higher and the developability tends to become better. In the case of using the polymerization initiator (D1), the content thereof is preferably 0.01 to 10 mol, and more preferably 0.01 to 5 mol relative to 1 mol of the polymerization initiator (D). In addition, the total content of the polymerization initiator (D) and the polymerization initiator (D1) relative to the solid content of the colored photosensitive resin composition is preferably 1 to 35% by mass, more preferably 1 to 25% by mass %, more preferably 5 to 20% by mass. The colored photosensitive resin composition of the present invention preferably contains a solvent (E). The solvent (E) is not particularly limited, and solvents commonly used in this field can be used. For example, it can be selected from ester solvents (solvents containing -COO-), ether solvents other than ester solvents (solvents containing -O- and no -COO-), ether ester solvents (solvents containing -COO- and -O- ), ketone solvents other than ester solvents (solvents containing -CO- and not containing -COO-), alcohol solvents (solvents containing OH in the molecule and not containing -O-, -CO- and -COO-), aromatic A hydrocarbon solvent, an amide solvent, a dimethyl sulfide, etc. are selected and used. Examples of ester solvents include: methyl lactate, ethyl lactate, butyl lactate, methyl 2-hydroxyisobutyrate, ethyl acetate, n-butyl acetate, isobutyl acetate, pentyl formate, and isoamyl acetate , Butyl propionate, isopropyl butyrate, ethyl butyrate, butyl butyrate, methyl pyruvate, ethyl pyruvate, propyl pyruvate, methyl acetate, ethyl acetate, cyclic Hexanediol acetate, γ-butyrolactone, etc. Examples of the ether solvent include: ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monoethyl ether, Ethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, 3-methoxy-1-butanol, 3-methoxy-3-methylbutanol, Tetrahydrofuran, tetrahydropyran, 1,4-bis
Figure 110109077-A0304-12-06
Alkane, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol methyl ethyl ether, diethylene glycol dipropyl ether, diethylene glycol dibutyl ether, anisole, phenylethyl ether, Methyl anisole and so on. Examples of ether ester solvents include: methyl methoxyacetate, ethyl methoxyacetate, butyl methoxyacetate, methyl ethoxyacetate, ethyl ethoxyacetate, 3-methoxypropionic acid Methyl ester, ethyl 3-methoxypropionate, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, methyl 2-methoxypropionate, 2-methoxypropionic acid Ethyl ester, 2-methoxypropyl propionate, 2-ethoxy methyl propionate, 2-ethoxy ethyl propionate, 2-methoxy-2-methyl propionate, 2- Ethoxy-2-methylpropionate, 3-methoxybutyl acetate, 3-methyl-3-methoxybutyl acetate, propylene glycol monomethyl ether acetate, propylene glycol mono Ethyl ether acetate, propylene glycol monopropyl ether acetate, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether ethyl Ester, dipropylene glycol methyl ether acetate, etc. Examples of the ketone solvent include 4-hydroxy-4-methyl-2-pentanone, acetone, 2-butanone, 2-heptanone, 3-heptanone, 4-heptanone, 4-methyl-2- Pentanone, cyclopentanone, cyclohexanone, isophorone, etc. Examples of alcohol solvents include methanol, ethanol, propanol, butanol, hexanol, cyclohexanol, ethylene glycol, propylene glycol, and glycerin. As the aromatic hydrocarbon solvent, benzene, toluene, xylene, mesitylene, etc. may be mentioned. Examples of the amide solvent include N,N-dimethylformamide, N,N-dimethylacetamide, N-methylpyrrolidone, and the like. These solvents may be used alone or in combination of two or more kinds. Among the above-mentioned solvents, in terms of coating properties and drying properties, an organic solvent having a boiling point of 120°C or more and 180°C or less at 1 atm is preferred. Among them, propylene glycol monomethyl ether acetate, ethyl lactate, propylene glycol monomethyl ether, dipropylene glycol methyl ether acetate, ethyl 3-ethoxypropionate, ethylene glycol monomethyl ether, ethylene glycol are preferred. Monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, 3-methoxybutyl acetate, 3-methoxy-1-butanol, 4-hydroxy-4-methyl- 2-pentanone, N,N-dimethylformamide, etc., more preferably propylene glycol monomethyl ether acetate, propylene glycol monomethyl ether, dipropylene glycol methyl ether acetate, ethyl lactate, 3-methoxy Butyl acetate, 3-methoxy-1-butanol, ethyl 3-ethoxypropionate, etc. In the colored photosensitive resin composition, the content of the solvent (E) is preferably 70 to 95% by mass, more preferably 75 to 92% by mass. In other words, the total amount of the solid content of the colored photosensitive resin composition is preferably 5 to 30% by mass, more preferably 8 to 25% by mass. If the content of the solvent (E) is within the above-mentioned range, the flatness at the time of coating becomes good, and the color density does not become insufficient when the color filter is formed, and the display characteristics tend to become good. <Leveling agent (F)> As a leveling agent (F), a silicone type surfactant, a fluorine type surfactant, etc. are mentioned. These may have a polymerizable group in the side chain. As the polysiloxane-based surfactant, a surfactant having a siloxane bond in the molecule, and the like can be cited. Specific examples include: Toray Silicone DC3PA, Toray Silicone SH7PA, Toray Silicone DC11PA, Toray Silicone SH21PA, Toray Silicone SH28PA, Toray Silicone SH29PA, Toray Silicone SH30PA, Toray Silicone SH8400 (trade name: manufactured by Toray-Dow Corning Co., Ltd.) ; KP321, KP322, KP323, KP324, KP326, KP340, KP341 (manufactured by Shin-Etsu Chemical Co., Ltd.); TSF400, TSF401, TSF410, TSF4300, TSF4440, TSF4445, TSF4446, TSF4452 and TSF4460 (Momentive Performance Materials Japan) Co., Ltd.) and so on. Examples of the above-mentioned fluorine-based surfactant include a surfactant having a fluorocarbon chain in the molecule, and the like. Specific examples include: Fluorad (registered trademark) FC430, Fluorad FC431 (manufactured by Sumitomo 3M (stock)); Megafac (registered trademark) F142D, Megafac F171, Megafac F172, Megafac F173, Megafac F177, Megafac F183, Megafac F554, Megafac R30, Megafac RS-718-K (manufactured by DIC (Stock)); Eftop (registered trademark) EF301, Eftop EF303, Eftop EF351, Eftop EF352 (manufactured by Mitsubishi Materials Electronics Co., Ltd.); Surflon (registered trademark) S381, Surflon S382, Surflon SC101, Surflon SC105 (manufactured by Asahi Glass Co., Ltd.) and E5844 (manufactured by Daikin Fine Chemical Research Institute Co., Ltd.), etc. As the silicone-based surfactant, a silicone-based surfactant that further has a fluorine atom can be cited. Examples of the silicone-based surfactant having a fluorine atom include Megafac (registered trademark) R08, Megafac BL20, Megafac F475, Megafac F477, Megafac F443 (manufactured by DIC Co., Ltd.), and the like. In the total amount of the colored photosensitive resin composition, the content of the leveling agent (F) is preferably 0.001% by mass or more and 0.2% by mass or less, preferably 0.002% by mass or more and 0.1% by mass or less, more preferably 0.01 Mass% or more and 0.05 mass% or less. Furthermore, the content of the above-mentioned pigment dispersant is not included in the content. The colored photosensitive resin composition of the present invention may contain fillers, other polymer compounds, adhesion promoters, antioxidants, ultraviolet absorbers, light stabilizers, chain transfer agents, hardeners, and other additives as necessary. <The manufacturing method of the colored photosensitive resin composition> The colored photosensitive resin composition of the present invention can be obtained, for example, by combining the colorant (A), the resin (B), the polymerizable compound (C), and the polymerization initiator (D) , And the solvent (E), the leveling agent (F), the polymerization initiation aid (D1) and other ingredients are mixed and prepared as needed. <The manufacturing method of a color filter> As a method of forming a pattern using the colored photosensitive resin composition of this invention, a photolithography method, an inkjet method, a printing method, etc. are mentioned. Among them, the photolithography method is preferred. The photolithography method is a method of applying the above-mentioned colored photosensitive resin composition on a substrate, drying it, exposing it through a photomask, and developing it to obtain a pattern. In the photolithography method, since a photomask is not used during exposure and/or development is not performed, a colored coating film can be formed as a hardened material of the colored composition layer. The colored pattern or colored coating film formed in the above-mentioned manner can be used as the color filter of the present invention. Examples of the above-mentioned substrates include: quartz glass, borosilicate glass, aluminoborosilicate glass, soda lime glass coated with silica on the surface, silicon, metal, polycarbonate, polymethacrylic acid, etc. Plastics such as methyl ester, polyethylene terephthalate, etc., on which aluminum, silver, silver/copper/palladium alloy thin films, etc. are formed on the above-mentioned substrate, may be plate-shaped or film-shaped. In addition, structures such as color filters, various insulating or conductive films, and driving circuits may be formed on these substrates. Regarding the coating to the substrate, for example, spin coaters, slit and spin coaters, slit coaters (also called die nozzle coaters, curtain-type flat coaters, non-rotary coaters) can be used. In the case of a coating machine), an inkjet machine and other coating devices. As a drying method of the film coated on the substrate, methods such as heat drying, natural drying, air drying, and reduced-pressure drying can be cited. It is also possible to combine a plurality of methods. The drying temperature is preferably 10 to 120°C, more preferably 50 to 100°C. In addition, the heating time is preferably 10 seconds to 60 minutes, more preferably 30 seconds to 10 minutes. Drying under reduced pressure is preferably performed in a temperature range of 20-25°C under a pressure of 50-150 Pa. Expose the dried coating film through the mask used to form the target pattern. The shape of the pattern on the mask at this time is not particularly limited, and the shape of the pattern corresponding to the purpose of the target can be used. The light source used for exposure is preferably a light source that generates light with a wavelength of 250 to 450 nm. For example, you can also use a filter that cuts off the wavelength region for light that does not reach 350 nm, or use a bandpass filter that captures these wavelength regions for light near 436 nm, 408 nm, and 365 nm. Sexually capture. Specifically, as the light source, a mercury lamp, a light emitting diode, a metal halide lamp, a halogen lamp, and the like can be cited. It is preferable to use a device such as a photomask alignment exposure machine, a stepping exposure machine, etc., because the entire exposure surface can be uniformly irradiated with parallel light, or the photomask and the substrate can be accurately aligned. After exposure, a specific part (for example, an unexposed part) is dissolved by contact with a developing solution, and development is performed, thereby obtaining a pattern. As the developer, an organic solvent can also be used, preferably an aqueous solution of an alkaline compound, because the developer is unlikely to cause dissolution or swelling of the exposed part of the coating film, and a pattern with a good shape can be obtained. The development method may be any one of a liquid coating method, a dipping method, and a spray method. Furthermore, it is also possible to tilt the substrate to an arbitrary angle during development. It is preferable to wash with water after development. Examples of the above-mentioned basic compounds include sodium hydroxide, potassium hydroxide, disodium hydrogen phosphate, sodium dihydrogen phosphate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, potassium dihydrogen phosphate, sodium silicate, potassium silicate, Sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, sodium borate, potassium borate, ammonia and other inorganic basic compounds; tetramethylammonium hydroxide, 2-hydroxyethyltrimethylammonium hydroxide, monomethylamine , Dimethylamine, trimethylamine, monoethylamine, diethylamine, triethylamine, monoisopropylamine, diisopropylamine, ethanolamine and other organic basic compounds. Among them, potassium hydroxide, sodium bicarbonate, and tetramethylammonium hydroxide are preferred. The concentration of the inorganic and organic basic compounds in the aqueous solution is preferably 0.01-10% by mass, more preferably 0.03-5% by mass. The aqueous solution of the above-mentioned basic compound may also contain a surfactant. Examples of surfactants include polyoxyethylene alkyl ethers, polyoxyethylene aryl ethers, polyoxyethylene alkyl aryl ethers, other polyoxyethylene derivatives, oxyethylene/oxypropylene block copolymers, and sorbitol Nonionic surfactants such as anhydride fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, glycerin fatty acid esters, polyoxyethylene fatty acid esters, polyoxyethylene alkylamines, etc.; Anionic surfactants such as sodium lauryl sulfate, sodium oleyl sulfate, sodium lauryl sulfate, ammonium lauryl sulfate, sodium dodecylbenzene sulfonate, sodium dodecyl naphthalene sulfonate; stearylamine salt Cationic surfactants such as acid salt, lauryl trimethyl ammonium chloride, etc. The concentration of the surfactant in the aqueous solution of the basic compound is preferably 0.01-10% by mass, more preferably 0.05-8% by mass, and particularly preferably 0.1-5% by mass. Furthermore, post-baking can also be performed as needed. The post-baking is preferably carried out at 150 to 250°C for 1 to 240 minutes, for example. Regarding the film thickness of the coating film after post-baking, the film thickness of the obtained coating film and the influence of the adjacent pixels become larger, the film is preferably as thin as possible, preferably 3 μm or less. Furthermore, when it becomes a thick film, it is not good due to the following reasons: when manufacturing a liquid crystal display device (such as a liquid crystal panel), the light from the light source leaks through pixels of more than two colors, so when obliquely viewing the panel, Loss of vividness of colors, etc. In addition, the thickness of the coating film after post-baking is preferably 0.5 μm or more. The colored coating film and the colored pattern formed from the colored photosensitive resin composition of the present invention are useful as color filters. The color filter can be used in various devices related to colored images such as display devices (for example, liquid crystal display devices, organic EL devices, etc.), solid-state imaging devices, and electronic paper in a known manner. [Examples] Next, the present invention will be explained in more detail with reference to examples. The "%" and "parts" in the examples are mass% and parts by mass unless otherwise stated. Synthesis Example 1 In a 1 L flask equipped with a reflux condenser, a dropping funnel and a stirrer, an appropriate amount of nitrogen was circulated to replace it with a nitrogen atmosphere, 280 parts by weight of propylene glycol monomethyl ether acetate was added, and the mixture was heated to 80°C while stirring. Then, 38 parts by weight of acrylic acid, 289 parts by weight of a mixture of 3,4-epoxytricyclo[5.2.1.0 2,6 ]decane-8 or/and 9-base ester of acrylic acid, and propylene glycol monomethyl ether were added dropwise over 5 hours A mixed solution of 125 parts by weight of acetate. On the other hand, a mixed solution prepared by dissolving 33 parts by weight of 2,2-azobis(2,4-dimethylvaleronitrile) in 235 parts by weight of propylene glycol monomethyl ether acetate was added dropwise over 6 hours. After the dropping, keep at the same temperature for 4 hours, then cool to room temperature to obtain a copolymer containing type B viscosity (23°C) 125 mPas, solid content 37.0% by weight, and solution acid value 27 mg-KOH/g The resin B-1 solution. The weight average molecular weight Mw of the resulting copolymer was 9,200, and the molecular weight distribution was 2.08. Using the GPC method, the polystyrene conversion weight average molecular weight Mw and the number average molecular weight Mn of the resin obtained in the above synthesis example were measured under the following conditions. Device; HLC-8120GPC (manufactured by Tosoh Co., Ltd.) column; TSK-GELG2000HXL column temperature; 40°C solvent; THF flow rate; 1.0 mL/min test liquid solid content concentration; 0.001 to 0.01 mass% injection volume; 50 μL detector; RI calibration standard material; TSK STANDARD POLYSTYRENE F-40, F-4, F-288, A-2500, A-500 (manufactured by Tosoh (Stock)) [Preparation of pigment dispersion (A-1) ] CI Pigment Green 58 13.0 parts Acrylic Pigment Dispersant 2.0 parts Propylene Glycol Monomethyl Ether Acetate 85.0 parts The above components are mixed, and the pigment is sufficiently dispersed using a bead mill, thereby obtaining a pigment dispersion liquid (A-1). [Preparation of Pigment Dispersion Liquid (A-2)] CI Pigment Yellow 138 15.0 parts Acrylic Pigment Dispersant 4.5 parts Propylene Glycol Monomethyl Ether Acetate 80.5 parts Mix the above ingredients, use a bead mill to fully disperse the pigment, and This obtained a pigment dispersion liquid (A-2). [Preparation of pigment dispersion (A-3)] CI Pigment Blue 15:3 12.0 parts Acrylic pigment dispersant 4.0 parts Propylene glycol monomethyl ether acetate 84.0 parts Mix the above ingredients and use a bead mill to fully disperse the pigment , Thereby obtaining a pigment dispersion liquid (A-3). [Preparation of Pigment Dispersion Liquid (A-4)] CI Pigment Yellow 150 11.9 parts Acrylic Pigment Dispersant 5.4 parts Propylene Glycol Monomethyl Ether Acetate 82.7 parts Mix the above ingredients, use a bead mill to fully disperse the pigment, and This obtained a pigment dispersion liquid (A-4). [Preparation of pigment dispersion liquid (A-5)] CI Pigment Green 7 11.0 parts acrylic pigment dispersant 3.3 parts propylene glycol monomethyl ether acetate 81.3 parts Mix the above ingredients, use a bead mill to fully disperse the pigment, by This obtained a pigment dispersion liquid (A-5). Examples 1 to 4 and Comparative Examples 1 to 3 [Preparation of colored photosensitive resin composition] The components described in Table 1 were mixed to obtain a colored photosensitive resin composition. Furthermore, propylene glycol monomethyl ether acetate was mixed so that the solid content of the colored photosensitive resin composition became the "solid content (%)" in Table 1. [Table 1] Example Comparative example 1 2 3 4 1 2 3 Coloring dispersion (A1) share 48 42 30 17 0 56 39 Coloring dispersion (A2) share 12 16 25 35 0 0 0 Coloring dispersion (A3) share 1 2 3 5 0 0 3 Coloring dispersion (A4) share 0 0 0 0 34 7 twenty two Coloring dispersion (A5) share 0 0 0 0 36 0 0 Resin (B1) share 9 9 9 9 8 9 9 Polymeric compound (C1) share 3 3 3 3 3 3 3 Polymerization initiator (D1) share 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Polymerization initiator (D2) share 0.7 0.7 0.7 0.6 0.6 0.7 0.6 Polymerization initiation aid (D3) share 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Leveling agent (F1) share 0 0 0 0 0 0 0 Solid content % 18 18 18 18 18 18 18 In Table 1, each component system is as follows. Coloring dispersion liquid (A1); the above-obtained pigment dispersion liquid (A-1) coloring dispersion liquid (A2); the above-obtained pigment dispersion liquid (A-2) coloring dispersion liquid (A3); the above-obtained pigment Dispersion (A-3) Colored Dispersion Liquid (A4); Pigment Dispersion Liquid (A-4) Colored Dispersion Liquid (A5) obtained above; Pigment Dispersion Liquid (A-5) Resin (B1) obtained above; Resin B-1 solution polymerizable compound (C1); Dipentaerythritol hexaacrylate (KAYARAD DPHA; manufactured by Nippon Kayaku Co., Ltd.) Polymerization initiator (D1); N-benzyloxy-1-(4- Phenylmercaptophenyl)octane-1-one-2-imine (Irgacure OXE 01; manufactured by BASF; O-oxime compound) polymerization initiator (D2); a mixture of compounds represented by the following formula (CHEMCURE-TCDM; manufactured by Cambridge Company; biimidazole compound) [Chemical Formula 10]
Figure 02_image019
Polymerization initiator (D3); 2-mercaptobenzothiazole (Soxinol M; manufactured by Sumitomo Chemical Co., Ltd.; compound represented by the following formula) [Chemical Formula 11]
Figure 02_image021
Leveling agent (F1); polyether modified silicone oil (SH8400; manufactured by Toray-Dow Corning Co., Ltd.) [Production of colored coating film] The colored photosensitive resin composition is applied to 2 by spin coating method After mounting the square glass substrate (Eagle XG; manufactured by Corning), it was pre-baked at 100°C for 3 minutes. After cooling, using an exposure machine (TME-150RSK; manufactured by TOPCON Co., Ltd.), the substrate coated with the colored photosensitive resin composition was subjected to an exposure amount of 150 mJ/cm 2 (based on 365 nm) in an atmospheric environment. Light irradiation. After light irradiation, the obtained film was immersed in an aqueous developer containing 0.12% of non-ionic surfactant and 0.04% of potassium hydroxide for 60 seconds at 24°C to develop the film. After washing with water, place in an oven After baking at 230°C for 30 minutes, a colored coating film was obtained. The production of the colored coating film and the evaluation of the chromaticity are repeated, and the rotation speed of the spin coating when the colored photosensitive resin composition is applied is adjusted to obtain a colored coating film with x=0.235 and y=0.620 in the chromaticity coordinates. Table 2 shows the brightness and film thickness of the obtained colored coating film. At this time, the brightness Y is preferably 42 or more. The higher the value, the more the power of the backlight device can perform at least the same display when the panel is made. [Film thickness measurement] The film thickness of the obtained colored coating film was measured using a film thickness measuring device (DEKTAK3; manufactured by Nippon Vacuum Technology Co., Ltd.). [Chromaticity evaluation] Use a color measuring machine (OSP-SP-200; manufactured by Olympus Co., Ltd.) to measure the spectrum of the obtained colored coating film, and use the characteristic function of the C light source to measure the xy color in the XYZ color system of CIE Degree coordinates (x, y) and brightness Y. [Evaluation of dissolution time (developing solubility)] In the same manner as described above, the colored photosensitive resin composition was coated on a 2-inch square glass substrate (Eagle XG; manufactured by Corning) by a spin coating method, and then heated at 100°C Pre-bake for 3 minutes. After cooling, use a rotary developing machine (SD-408R; manufactured by Oshigane Co., Ltd.) to spray an aqueous developer containing 0.12% of non-ionic surfactant and 0.04% of potassium hydroxide at 0.05 hPa, and measure until it is coated on the substrate. The time until the film is completely dissolved. The results are shown in Table 2. [Production of colored pattern] The colored photosensitive resin composition was coated on a 2-inch square glass substrate (Eagle XG; manufactured by Corning) by spin coating method to achieve the film thickness shown in Table 2. The pressure dryer performs reduced-pressure drying to 130 Pa. Thereafter, the distance between the substrate coated with the colored photosensitive resin composition and the patterned quartz glass photomask was set to 100 μm, and an exposure machine (TME-150RSK; manufactured by TOPCON Co., Ltd.) was used in an atmospheric environment. Light irradiation is performed at an exposure amount of 150 mJ/cm 2 (365 nm reference). Furthermore, as the photomask, a mask formed with a pattern of 50 μm lines and gaps was used. After light irradiation, the above-mentioned coating film is immersed in an aqueous developer containing 0.12% of non-ionic surfactant and 0.04% of potassium hydroxide at 24°C for the measured dissolution time + 30 seconds to develop. After washing with water , Bake in an oven at 230°C for 30 minutes to make a colored pattern. [Development type] In the production of colored patterns, when immersed in a developer, the solubility of the unexposed part in the developer was confirmed. When it was dissolved in the developer, it was recorded as "○", and when the peeling sheet was accompanied by a solid substance peeled from the glass substrate, it was recorded as "×" for evaluation. The results are shown in Table 2. When the peeling sheet is generated and dissolving in the developer, in the step of producing the coloring pattern, the peeling sheet is generated and then attached to other pixels, and the normal coloring pattern cannot be obtained, so the yield rate is extremely reduced. [Pattern shape] In the coloring pattern with line and gap pattern, when a pattern of 30 μm is obtained, if the shape is a forward cone, it is marked as "○", and when the shape is an inverted cone The time is recorded as "×" for evaluation. The results are shown in Table 2. [Table 2] Example Comparative example 1 2 3 4 1 2 3 Film thickness μm 3.0 2.9 2.7 2.7 2.2 3.2 2.6 Brightness Y 46.2 45.9 44.9 42.9 39.1 44.8 41.4 Dissolution time second 55 51 48 49 93 83 55 Development type X X X Pattern shape X X It was confirmed that the colored photosensitive resin composition of Examples 1 to 4 can form a high-brightness colored coating film with a film thickness in an appropriate range. Furthermore, it was confirmed that when a colored pattern was formed from the colored photosensitive resin composition of each example, no release sheet was generated in the unexposed portion, and the solubility in the developer was good, and a colored pattern with a good shape was obtained. On the other hand, it was confirmed that the colored coating films obtained from the colored photosensitive resin compositions of Comparative Example 1 and Comparative Example 3 had low brightness, and the colored photosensitive resin composition of Comparative Example 2 was difficult to thin, and the film thickness became Thicker than 3 μm. In addition, it was confirmed that when a colored pattern was formed from each of the colored photosensitive resin compositions of Comparative Examples 1 to 3, the coating film of the unexposed portion peeled off from the glass substrate, and solid matter was generated. Furthermore, for each of the colored photosensitive resin compositions of Comparative Examples 1 and 2, a coating film with a good pattern shape could not be obtained. [Industrial Applicability] A high-definition color filter with a suitable film thickness, good developability and high brightness can be manufactured from the colored photosensitive resin composition of the present invention.

Claims (4)

一種著色感光性樹脂組合物,其包含著色劑(A)、樹脂(B)、聚合性化合物(C)及聚合起始劑(D),且 包含C.I.顏料藍15:3或C.I.顏料藍15:4、C.I.顏料綠58、及C.I.顏料黃138作為上述著色劑(A)。A colored photosensitive resin composition comprising a colorant (A), a resin (B), a polymerizable compound (C), and a polymerization initiator (D), and C.I. Pigment Blue 15:3 or C.I. Pigment Blue 15:4, C.I. Pigment Green 58, and C.I. Pigment Yellow 138 are included as the colorant (A). 一種塗膜,其係由如請求項1之著色感光性樹脂組合物所形成。A coating film formed from the colored photosensitive resin composition of claim 1. 一種彩色濾光片,其係由如請求項1之著色感光性樹脂組合物所形成。A color filter, which is formed of the coloring photosensitive resin composition according to claim 1. 一種顯示裝置,其包含如請求項3之彩色濾光片。A display device comprising the color filter as claimed in claim 3.
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