TW202113025A - Liquid crystal display element sealant, vertical conduction material, liquid crystal display element, and cured product - Google Patents

Liquid crystal display element sealant, vertical conduction material, liquid crystal display element, and cured product Download PDF

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TW202113025A
TW202113025A TW109145515A TW109145515A TW202113025A TW 202113025 A TW202113025 A TW 202113025A TW 109145515 A TW109145515 A TW 109145515A TW 109145515 A TW109145515 A TW 109145515A TW 202113025 A TW202113025 A TW 202113025A
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liquid crystal
crystal display
manufactured
compound
display element
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TWI740753B (en
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小林洋
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日商積水化學工業股份有限公司
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K3/1006—Materials in mouldable or extrudable form for sealing or packing joints or covers characterised by the chemical nature of one of its constituents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
    • C09J163/10—Epoxy resins modified by unsaturated compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1341—Filling or closing of cells
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2003/1034—Materials or components characterised by specific properties
    • C09K2003/1059—Heat-curable materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2003/1034—Materials or components characterised by specific properties
    • C09K2003/1062—UV-curable materials

Abstract

The purpose of the present invention is to provide a liquid crystal display element sealant that makes cracks or breaks unlikely to occur in a substrate, even for a liquid crystal display element designed with a narrow frame. Another purpose of the present invention is to provide a vertical conduction material and liquid crystal display element made using the liquid crystal display element sealant. Yet another purpose of the present invention is to provide a cured product obtained by curing the liquid crystal display element sealant. The present invention is a liquid crystal display element sealant that contains a curable resin, a polymerization initiator, and/or a thermosetting agent, and the pencil hardness of the cured product based on JIS K 5600-5-4 is less than or equal to 3H.

Description

液晶顯示元件用密封劑Sealant for liquid crystal display element

本發明係關於一種即便為窄邊緣設計之液晶顯示元件亦使基板不易產生皸裂或破裂之液晶顯示元件用密封劑。另外，本發明係關於一種使用該液晶顯示元件用密封劑而成之上下導通材料及液晶顯示元件。進而，本發明係關於一種使該液晶顯示元件用密封劑硬化而成之硬化物。The present invention relates to a sealant for a liquid crystal display element that prevents chipping or cracking of the substrate even if the liquid crystal display element is designed for a narrow edge. In addition, the present invention relates to an upper and lower conduction material and a liquid crystal display element using this sealant for liquid crystal display elements. Furthermore, this invention relates to the hardened|cured material which hardened this sealing compound for liquid crystal display elements.

近年來，作為液晶顯示單元等液晶顯示元件之製造方法，業界基於縮短工站時間、使用液晶量之最佳化等觀點而使用如專利文獻1、專利文獻2所揭示之使用含有硬化性樹脂、光聚合起始劑及熱硬化劑之光熱併用硬化型之密封劑的稱為滴加法之液晶滴加方式。 於滴加法中，首先於2塊附電極之基板之一者藉由點膠而形成長方形之密封圖案。繼而，於密封劑未硬化之狀態下於基板之密封框內滴加液晶之微小滴，於真空下重疊另一基板，並對密封部照射紫外線等光進行暫時硬化。其後，加熱進行正式硬化，而製作液晶顯示元件。目前，該滴加法成為液晶顯示元件之主流製造方法。In recent years, as a method for manufacturing liquid crystal display elements such as liquid crystal display units, the industry has used curable resins as disclosed in Patent Document 1 and Patent Document 2 based on the viewpoints of shortening the station time and optimizing the amount of liquid crystal used. The combination of photopolymerization initiator and thermal curing agent with light and heat curing type sealant is called the liquid crystal dropping method of the dropping method. In the dropping method, firstly, a rectangular sealing pattern is formed by dispensing glue on one of the two substrates with electrodes. Then, in a state where the sealant is not hardened, droplets of liquid crystal are dropped into the sealing frame of the substrate, overlap another substrate under vacuum, and the sealing part is irradiated with light such as ultraviolet rays to temporarily harden. After that, heating is performed for main curing, and a liquid crystal display element is produced. At present, this dropping method has become the mainstream manufacturing method of liquid crystal display elements.

然，於行動電話、攜帶型遊戲機等各種附液晶面板之行動機器得到普及之現代，裝置之小型化係業界最謀求之課題。作為小型化之方法，可列舉液晶顯示部之窄邊緣化，例如將密封部之位置配置於黑矩陣下（以下，亦稱為窄邊緣設計）。 先前技術文獻 專利文獻However, in the modernization of the popularization of various mobile devices with LCD panels such as mobile phones and portable game consoles, miniaturization of the devices is the most sought-after issue in the industry. As a method of miniaturization, the narrow edge of the liquid crystal display part can be cited, for example, the position of the sealing part is arranged under the black matrix (hereinafter, also referred to as narrow edge design). Prior art literature Patent literature

專利文獻1：日本特開2001－133794號公報 專利文獻2：日本特開平5－295087號公報Patent Document 1: Japanese Patent Application Publication No. 2001-133794 Patent Document 2: Japanese Patent Laid-Open No. 5-295087

[發明所欲解決之課題][The problem to be solved by the invention]

本發明係關於一種即便為窄邊緣設計之液晶顯示元件亦使基板不易產生皸裂或破裂之液晶顯示元件用密封劑。另外，本發明之目的在於提供一種使用該液晶顯示元件用密封劑而成之上下導通材料及液晶顯示元件。進而，本發明之目的在於提供一種使該液晶顯示元件用密封劑硬化而成之硬化物。 [解決課題之技術手段]The present invention relates to a sealant for a liquid crystal display element that prevents chipping or cracking of the substrate even if the liquid crystal display element is designed for a narrow edge. In addition, an object of the present invention is to provide an upper and lower conduction material and a liquid crystal display element using this sealant for liquid crystal display elements. Furthermore, the object of this invention is to provide the hardened|cured material which hardened this sealing compound for liquid crystal display elements. [Technical means to solve the problem]

本發明係一種液晶顯示元件用密封劑，其含有硬化性樹脂與聚合起始劑及／或熱硬化劑，並且依據JIS K 5600－5－4之硬化物之鉛筆硬度為3H以下。 以下，對本發明進行詳細說明。The present invention is a sealing compound for liquid crystal display elements, which contains a curable resin, a polymerization initiator and/or a thermosetting agent, and the pencil hardness of the cured product according to JIS K 5600-5-4 is 3H or less. Hereinafter, the present invention will be described in detail.

通常，液晶顯示元件係藉由自母玻璃分別切斷面板而製造，但於製造如液晶顯示部之周圍之框架部分之寬度成為2 mm以下之窄邊緣設計之液晶顯示元件時，尤其於切斷該面板之步驟中存在容易於基板產生皸裂或破裂之問題。圖1（a）係表示非窄邊緣設計之習知之液晶顯示元件之面板之切斷位置的示意圖，圖1（b）係表示窄邊緣設計之液晶顯示元件之面板之切斷位置的示意圖。如圖1（a）所示，非窄邊緣設計之習知之液晶顯示元件由於在相鄰之面板彼此之密封劑之繪製部位具有固定之間隔，故而面板之切斷位置不會位於密封劑之硬化物上。另一方面，如圖1（b）所示，於窄邊緣設計之液晶顯示元件中，相鄰之面板彼此之密封劑之繪製部位接觸，面板之切斷位置位於密封劑之硬化物上。本發明人認為，窄邊緣設計之液晶顯示元件於切斷面板時容易於基板產生皸裂或破裂之原因在於處於面板之切斷位置之密封劑之硬化物過硬。因此，本發明者進行了潛心研究，結果發現：藉由使用硬化物之鉛筆硬度為3H以下者作為密封劑，即便為窄邊緣設計之液晶顯示元件亦使基板不易產生皸裂或破裂，從而完成本發明。Generally, the liquid crystal display element is manufactured by cutting the panel separately from the mother glass. However, when manufacturing the liquid crystal display element with a narrow edge design such as the width of the frame part around the liquid crystal display part to be 2 mm or less, it is especially useful for cutting In the steps of the panel, there is a problem that cracks or cracks are easily generated in the substrate. Fig. 1(a) is a schematic diagram showing the cutting position of a panel of a conventional liquid crystal display element with a non-narrow-edge design, and Fig. 1(b) is a schematic diagram showing the cutting position of a panel of a liquid crystal display element with a narrow-edge design. As shown in Figure 1(a), the conventional liquid crystal display element with non-narrow edge design has a fixed interval between the drawing positions of the sealant between adjacent panels, so the cutting position of the panel will not be located at the hardening of the sealant. Material. On the other hand, as shown in Fig. 1(b), in a liquid crystal display element with a narrow-edge design, adjacent panels are in contact with each other on the drawing part of the sealant, and the cutting position of the panel is located on the cured product of the sealant. The inventor believes that the reason why the liquid crystal display element with a narrow edge design is prone to cracking or cracking on the substrate when the panel is cut is that the hardened material of the sealant at the cutting position of the panel is too hard. Therefore, the inventors have conducted painstaking research and found that by using a hardened material whose pencil hardness is less than 3H as a sealant, even a liquid crystal display element with a narrow edge design makes the substrate less likely to crack or crack, thereby completing the present invention. invention.

本發明之液晶顯示元件用密封劑之依據JIS K 5600－5－4之硬化物之鉛筆硬度為3H以下。藉由上述硬化物之鉛筆硬度為3H以下，即便為窄邊緣設計之液晶顯示元件亦使基板不易產生皸裂或破裂。 另外，就防透濕性等觀點而言，上述硬化物之鉛筆硬度較佳為3B以上。 此外，於本說明書中，上述所謂鉛筆硬度「為3H以下」意指鉛筆硬度成為3H之硬度、或成為軟於3H之硬度，上述所謂鉛筆硬度「為3B以上」意指鉛筆硬度成為3B之硬度、或成為硬於3B之硬度。 測定上述鉛筆硬度之硬化物可藉由對液晶顯示元件用密封劑照射100 mW／cm2 之紫外線（波長365 nm）30秒鐘後，於120℃加熱1小時而獲得。另外，該硬化物於液晶顯示元件中意指基板等之貼合或密封所使用之密封劑硬化物。The pencil hardness of the cured product of the sealing compound for liquid crystal display elements of the present invention in accordance with JIS K 5600-5-4 is 3H or less. With the pencil hardness of the hardened material below 3H, even a liquid crystal display element with a narrow edge design makes the substrate less likely to crack or crack. In addition, from the viewpoint of moisture permeability and the like, the pencil hardness of the cured product is preferably 3B or more. In addition, in this specification, the above-mentioned pencil hardness "below 3H" means that the pencil hardness becomes 3H or softer than 3H, and the above-mentioned so-called pencil hardness "3B or higher" means that the pencil hardness becomes 3B. , Or become harder than 3B hardness. The cured product for measuring the pencil hardness can be obtained by irradiating the sealant for liquid crystal display elements with 100 mW/cm 2 ultraviolet rays (wavelength 365 nm) for 30 seconds, and then heating at 120° C. for 1 hour. In addition, the cured product means a cured product of a sealant used for bonding or sealing a substrate or the like in a liquid crystal display element.

本發明之液晶顯示元件用密封劑含有硬化性樹脂與聚合起始劑及／或熱硬化劑。 於本發明之液晶顯示元件用密封劑中，作為將硬化物之鉛筆硬度設為3H以下之方法，可列舉使用具有柔軟性骨架之聚合性化合物作為上述硬化性樹脂之方法、或於密封劑中摻合具有柔軟性之聚合物或柔軟粒子之方法等。其中，較佳為使用具有柔軟性骨架之聚合性化合物之方法，更佳為將具有柔軟性骨架之聚合性化合物與柔軟粒子併用之方法。The sealing compound for liquid crystal display elements of this invention contains a curable resin, a polymerization initiator, and/or a thermosetting agent. In the sealing compound for liquid crystal display elements of the present invention, as a method of setting the pencil hardness of the cured product to 3H or less, a method of using a polymerizable compound having a flexible skeleton as the curable resin, or in a sealing compound The method of blending flexible polymers or soft particles, etc. Among them, a method of using a polymerizable compound having a flexible skeleton is preferred, and a method of using a polymerizable compound having a flexible skeleton together with flexible particles is more preferred.

作為上述具有柔軟性骨架之聚合性化合物，可列舉具有柔軟性骨架之（甲基）丙烯酸化合物、具有柔軟性骨架之環氧化合物等。上述硬化性樹脂較佳為含有上述具有柔軟性骨架之（甲基）丙烯酸化合物及／或上述具有柔軟性骨架之環氧化合物。 此外，於本說明書中，上述「（甲基）丙烯酸」意指丙烯酸或甲基丙烯酸，上述「（甲基）丙烯酸化合物」意指具有（甲基）丙烯醯基之化合物，上述「（甲基）丙烯醯基」意指丙烯醯基或甲基丙烯醯基。Examples of the polymerizable compound having a flexible skeleton include (meth)acrylic compounds having a flexible skeleton, epoxy compounds having a flexible skeleton, and the like. The curable resin preferably contains the (meth)acrylic compound having a flexible skeleton and/or the epoxy compound having a flexible skeleton. In addition, in this specification, the above-mentioned "(meth)acrylic acid" means acrylic acid or methacrylic acid, the above-mentioned "(meth)acrylic compound" means a compound having a (meth)acryloyl group, and the above-mentioned "(meth)acrylic acid compound" means a compound having a (meth)acryloyl group. ) "Acrylic acid group" means acrylic acid group or methacrylic acid group.

作為上述具有柔軟性骨架之（甲基）丙烯酸化合物，例如可列舉：長鏈（甲基）丙烯酸化合物、具有橡膠結構之（甲基）丙烯酸化合物、胺酯改質（甲基）丙烯酸化合物等。Examples of the (meth)acrylic compound having a flexible skeleton include long-chain (meth)acrylic compounds, (meth)acrylic compounds having a rubber structure, and urethane-modified (meth)acrylic compounds.

作為上述長鏈（甲基）丙烯酸化合物，例如可列舉環氧烷改質（甲基）丙烯酸化合物、己內酯改質（甲基）丙烯酸化合物等。 作為上述長鏈（甲基）丙烯酸化合物中之市售者，例如可列舉：共榮社化學公司製造之長鏈（甲基）丙烯酸化合物、Nagase chemteX公司製造之長鏈（甲基）丙烯酸化合物、東亞合成公司製造之長鏈（甲基）丙烯酸化合物、新中村化學工業公司製造之長鏈（甲基）丙烯酸化合物、DAICEL－ALLNEX公司製造之長鏈（甲基）丙烯酸化合物等。 作為上述共榮社化學公司製造之長鏈（甲基）丙烯酸化合物，例如可列舉Epoxyester 40EM、70PA、200PA、80FMA、3002M、3002A等。 作為上述Nagase chemteX公司製造之長鏈（甲基）丙烯酸化合物，例如可列舉DA－911M、DA－920、DA－931、DM－811、DM－832、DM－851等。 作為上述東亞合成公司製造之長鏈（甲基）丙烯酸化合物，例如可列舉M－327等。 作為上述新中村化學工業公司製造之長鏈（甲基）丙烯酸化合物，例如可列舉A－9300－1CL、A－GLY－9E、A－GLY－20E等。 作為上述DAICEL－ALLNEX公司製造之長鏈（甲基）丙烯酸化合物，例如可列舉EBECRYL 3708等。As said long-chain (meth)acrylic compound, an alkylene oxide modified (meth)acrylic compound, a caprolactone modified (meth)acrylic compound, etc. are mentioned, for example. Examples of commercially available long-chain (meth)acrylic compounds include: long-chain (meth)acrylic compounds manufactured by Kyoeisha Chemical Co., Ltd., long-chain (meth)acrylic compounds manufactured by Nagase chemteX, Long-chain (meth)acrylic compounds manufactured by Toagosei Co., Ltd., long-chain (meth)acrylic compounds manufactured by Shinnakamura Chemical Industry Co., Ltd., long-chain (meth)acrylic compounds manufactured by DAICEL-ALLNEX, etc. Examples of the long-chain (meth)acrylic compound manufactured by the above-mentioned Kyoeisha Chemical Company include Epoxyester 40EM, 70PA, 200PA, 80FMA, 3002M, 3002A, and the like. Examples of the long-chain (meth)acrylic compound manufactured by Nagase chemteX include DA-911M, DA-920, DA-931, DM-811, DM-832, and DM-851. As the long-chain (meth)acrylic compound manufactured by the Toagosei Co., Ltd., for example, M-327 and the like can be cited. Examples of the long-chain (meth)acrylic compound manufactured by Shinnakamura Chemical Industry Co., Ltd. include A-9300-1CL, A-GLY-9E, and A-GLY-20E. As the long-chain (meth)acrylic compound manufactured by the aforementioned DAICEL-ALLNEX company, for example, EBECRYL 3708 and the like can be cited.

作為上述具有橡膠結構之（甲基）丙烯酸化合物，例如可列舉（甲基）丙烯酸改質丁二烯橡膠、（甲基）丙烯酸改質異戊二烯橡膠等。 作為上述具有橡膠結構之（甲基）丙烯酸化合物中之市售者，例如可列舉日本曹達公司製造之具有橡膠結構之（甲基）丙烯酸化合物、Kuraray公司製造之具有橡膠結構之（甲基）丙烯酸化合物等。 作為上述日本曹達公司製造之具有橡膠結構之（甲基）丙烯酸化合物，例如可列舉NISSO－TE等。 作為上述Kuraray公司製造之具有橡膠結構之（甲基）丙烯酸化合物，例如可列舉UC－102、UC－203等。Examples of the (meth)acrylic compound having a rubber structure include (meth)acrylic modified butadiene rubber, (meth)acrylic modified isoprene rubber, and the like. Examples of commercially available (meth)acrylic compounds having a rubber structure include (meth)acrylic compounds having a rubber structure manufactured by Soda Corporation, and (meth)acrylic compounds having a rubber structure manufactured by Kuraray Co., Ltd. Compound etc. Examples of the (meth)acrylic compound having a rubber structure manufactured by the above-mentioned Nippon Soda Company include NISSO-TE. Examples of the (meth)acrylic compound having a rubber structure manufactured by the aforementioned Kuraray company include UC-102, UC-203, and the like.

作為上述胺酯改質（甲基）丙烯酸化合物，例如可列舉脂肪族（甲基）丙烯酸胺酯、芳香族（甲基）丙烯酸胺酯等。 作為上述胺酯改質（甲基）丙烯酸化合物中之市售者，例如可列舉：DAICEL－ALLNEX公司製造之胺酯改質（甲基）丙烯酸化合物、荒川化學工業公司製造之胺酯改質（甲基）丙烯酸化合物、根上化學工業公司製造之胺酯改質（甲基）丙烯酸化合物等。 作為上述DAICEL－ALLNEX公司製造之胺酯改質（甲基）丙烯酸化合物，例如可列舉：EBECRYL 230、EBECRYL 4491、EBECRYL 210等。 作為上述荒川化學工業公司製造之胺酯改質（甲基）丙烯酸化合物，例如可列舉551B等。 作為上述根上化學工業公司製造之胺酯改質（甲基）丙烯酸化合物，例如可列舉UN－350、UN－1255等。As said amine ester modified (meth)acrylic acid compound, aliphatic (meth)acrylate amine ester, aromatic (meth)acrylate amine ester, etc. are mentioned, for example. Examples of commercially available amine ester-modified (meth)acrylic compounds include: amine ester-modified (meth)acrylic compound manufactured by DAICEL-ALLNEX, and amine-ester modified (meth)acrylic compound manufactured by Arakawa Chemical Industry Co., Ltd. ( Meth) acrylic compound, urethane modified (meth) acrylic compound manufactured by Negami Chemical Industry Co., Ltd., etc. As the urethane modified (meth)acrylic compound manufactured by the aforementioned DAICEL-ALLNEX company, for example, EBECRYL 230, EBECRYL 4491, EBECRYL 210, and the like can be cited. As the urethane-modified (meth)acrylic compound manufactured by the aforementioned Arakawa Chemical Industry Co., Ltd., for example, 551B and the like can be cited. Examples of the urethane-modified (meth)acrylic compound manufactured by the aforementioned Negami Chemical Industry Co., Ltd. include UN-350, UN-1255, and the like.

其中，作為上述具有柔軟性骨架之（甲基）丙烯酸化合物，就可容易地調整硬化物之鉛筆硬度等而言，較佳為長鏈（甲基）丙烯酸化合物，更佳為環氧烷改質（甲基）丙烯酸化合物，進而更佳為環氧烷改質環氧（甲基）丙烯酸酯，尤佳為具有聚丙二醇骨架之環氧（甲基）丙烯酸酯，最佳為三丙二醇二縮水甘油醚之丙烯酸加成物。 此外，於本說明書中，上述所謂「（甲基）丙烯酸酯」意指丙烯酸酯或甲基丙烯酸酯，上述所謂「環氧（甲基）丙烯酸酯」，表示使環氧化合物中之所有環氧基與（甲基）丙烯酸反應而成之化合物。Among them, as the (meth)acrylic compound having a flexible skeleton, in terms of easily adjusting the pencil hardness of the hardened material, etc., a long-chain (meth)acrylic compound is preferred, and an alkylene oxide modification is more preferred (Meth)acrylic compound, more preferably alkylene oxide modified epoxy (meth)acrylate, particularly preferably epoxy (meth)acrylate having a polypropylene glycol skeleton, most preferably tripropylene glycol diglycidol Acrylic acid adduct of ether. In addition, in this specification, the above-mentioned "(meth)acrylate" means acrylate or methacrylate, and the above-mentioned "epoxy (meth)acrylate" means to make all epoxy in the epoxy compound A compound formed by the reaction of a base and (meth)acrylic acid.

作為上述具有柔軟性骨架之環氧化合物，例如可列舉長鏈環氧化合物、具有橡膠結構之環氧化合物等。Examples of the epoxy compound having a flexible skeleton include long-chain epoxy compounds and epoxy compounds having a rubber structure.

作為上述長鏈環氧化合物，例如可列舉環氧烷改質環氧樹脂、伸烷基改質環氧樹脂等。 作為上述長鏈環氧化合物中之市售者，例如可列舉：共榮社化學公司製造之長鏈環氧化合物、DIC公司製造之長鏈環氧化合物、DAICEL－ALLNEX公司製造之長鏈環氧化合物、三和合成化學公司製造之長鏈環氧化合物、新日本理化公司製造之長鏈環氧化合物、ADEKA公司製造之長鏈環氧化合物、三菱化學公司製造之長鏈環氧化合物等。 作為上述共榮社化學公司製造之長鏈環氧化合物，例如可列舉：Epolight 40E、100E、200E、400E、70P、200P、400P、1500NP、1600、80MF、100MF、4000、3002等。 作為上述DIC公司製造之長鏈環氧化合物，例如可列舉EPICLON EXA－4816、EPICLON EXA－4850等。 作為上述DAICEL－ALLNEX公司製造之長鏈環氧化合物，例如可列舉Celloxide 2081、Epolead GT－401等。 作為上述三和合成化學公司製造之長鏈環氧化合物，例如可列舉Chemicizer系列等。 作為上述新日本理化公司製造之長鏈環氧化合物，例如可列舉Sansocizer E－2000H等。 作為上述ADEKA公司製造之長鏈環氧化合物，例如可列舉ED－503、ED－503G、ED－506、EP－4000、EP－4005、EP－7001等。 作為上述三菱化學公司製造之長鏈環氧化合物，例如可列舉YL－7410、YL－7175－500、YL－7175－1000、jER 871、jER 872等。As said long-chain epoxy compound, an alkylene oxide modified epoxy resin, an alkylene modified epoxy resin, etc. are mentioned, for example. Examples of commercially available long-chain epoxy compounds include: long-chain epoxy compounds manufactured by Kyoeisha Chemical Co., Ltd., long-chain epoxy compounds manufactured by DIC, and long-chain epoxy compounds manufactured by DAICEL-ALLNEX. Compounds, long-chain epoxy compounds manufactured by Sanwa Synthetic Chemical Co., Ltd., long-chain epoxy compounds manufactured by Nippon Chemical Co., Ltd., long-chain epoxy compounds manufactured by ADEKA, and long-chain epoxy compounds manufactured by Mitsubishi Chemical Corporation. As the long-chain epoxy compound manufactured by Kyoeisha Chemical Co., Ltd., for example, Epolight 40E, 100E, 200E, 400E, 70P, 200P, 400P, 1500NP, 1600, 80MF, 100MF, 4000, 3002, etc. can be cited. As the long-chain epoxy compound manufactured by the said DIC company, EPICLON EXA-4816, EPICLON EXA-4850, etc. are mentioned, for example. Examples of the long-chain epoxy compound manufactured by the aforementioned DAICEL-ALLNEX company include Celloxide 2081, Epolead GT-401, and the like. Examples of the long-chain epoxy compound manufactured by the above-mentioned Sanwa Synthetic Chemical Company include the Chemicizer series. As the long-chain epoxy compound manufactured by the aforementioned Shin Nippon Rika Co., Ltd., for example, Sansocizer E-2000H and the like can be cited. Examples of the long-chain epoxy compound manufactured by ADEKA include ED-503, ED-503G, ED-506, EP-4000, EP-4005, EP-7001, and the like. As the long-chain epoxy compound manufactured by the said Mitsubishi Chemical Corporation, YL-7410, YL-7175-500, YL-7175-1000, jER 871, jER 872, etc. are mentioned, for example.

作為上述具有橡膠結構之環氧化合物，例如可列舉：丁二烯改質環氧樹脂、含末端羧基之聚丁二烯－丙烯腈（CTBN）改質環氧樹脂、含環氧基之丙烯酸橡膠等。Examples of the epoxy compound having a rubber structure include: butadiene modified epoxy resin, terminal carboxyl group-containing polybutadiene-acrylonitrile (CTBN) modified epoxy resin, epoxy group-containing acrylic rubber Wait.

另外，上述具有柔軟性骨架之環氧化合物之中，作為其他具有柔軟性骨架之環氧化合物，例如可列舉胺酯改質環氧化合物、橡膠粒子分散環氧化合物等。 作為上述其他具有柔軟性骨架之環氧化合物中之市售者，例如可列舉：ADEKA公司製造之其他具有柔軟性骨架之環氧化合物、日本觸媒公司製造之其他具有柔軟性骨架之環氧化合物、旭化成公司製造之其他具有柔軟性骨架之環氧化合物等。 作為上述ADEKA公司製造之其他具有柔軟性骨架之環氧化合物，例如可列舉EPU－7N等。 作為上述日本觸媒公司製造之其他具有柔軟性骨架之環氧化合物，例如可列舉ACRYSET BP系列等。 作為上述旭化成公司製造之其他具有柔軟性骨架之環氧化合物，例如可列舉AER9000等。In addition, among the above-mentioned epoxy compounds having a flexible skeleton, other epoxy compounds having a flexible skeleton include, for example, urethane modified epoxy compounds, rubber particle-dispersed epoxy compounds, and the like. As the commercial ones among the above-mentioned other epoxy compounds with flexible skeletons, for example, other epoxy compounds with flexible skeletons manufactured by ADEKA and other epoxy compounds with flexible skeletons manufactured by Nippon Shokubai Co., Ltd. are commercially available. , Asahi Kasei's other epoxy compounds with flexible skeleton, etc. Examples of other epoxy compounds having a flexible skeleton manufactured by the aforementioned ADEKA company include EPU-7N. Examples of other epoxy compounds having a flexible skeleton manufactured by the aforementioned Nippon Shokubai Co., Ltd. include ACRYSET BP series. As another epoxy compound having a flexible skeleton manufactured by the aforementioned Asahi Kasei Corporation, for example, AER9000 and the like can be cited.

作為除上述具有柔軟性骨架之（甲基）丙烯酸化合物及上述具有柔軟性骨架之環氧化合物以外之其他具有柔軟性骨架之聚合性化合物中之市售者，例如可列舉：巴工業公司製造之其他具有柔軟性骨架之聚合性化合物、出光興產公司製造之其他具有柔軟性骨架之聚合性化合物、Kaneka公司製造之其他具有柔軟性骨架之聚合性化合物、東亞合成公司製造之其他具有柔軟性骨架之聚合性化合物、綜研化學公司製造之其他具有柔軟性骨架之聚合性化合物、信越化學工業公司製造之其他具有柔軟性骨架之聚合性化合物等。 作為上述巴工業公司製造之其他具有柔軟性骨架之聚合性化合物，例如可列舉Ricon 130MA8等。 作為上述出光興產公司製造之其他具有柔軟性骨架之聚合性化合物，例如可列舉Poly bd等。 作為上述Kaneka公司製造之其他具有柔軟性骨架之聚合性化合物，例如可列舉Epyon系列等。 作為上述東亞合成公司製造之其他具有柔軟性骨架之聚合性化合物，例如可列舉ARUFON US－6000、巨單體系列等。 作為上述綜研化學公司製造之其他具有柔軟性骨架之聚合性化合物，例如可列舉ACTFLOW系列等。 作為上述信越化學工業公司製造之其他具有柔軟性骨架之聚合性化合物，例如可列舉改質聚矽氧油等。As a commercially available one of the polymerizable compounds having a flexible skeleton in addition to the (meth)acrylic compound having a flexible skeleton and the epoxy compound having a flexible skeleton, for example, those manufactured by Pakistan Industrial Co., Ltd. Other polymerizable compounds with a flexible skeleton, other polymerizable compounds with a flexible skeleton manufactured by Idemitsu Kosan, other polymerizable compounds with a flexible skeleton manufactured by Kaneka, and other flexible skeletons manufactured by Toagosei The polymerizable compounds, other polymerizable compounds with flexible skeletons manufactured by Soken Chemical Co., and other polymerizable compounds with flexible skeletons manufactured by Shin-Etsu Chemical Co., Ltd., etc. Examples of other polymerizable compounds having a flexible skeleton manufactured by the aforementioned Pakistan Industrial Company include Ricon 130MA8 and the like. Examples of other polymerizable compounds having a flexible skeleton manufactured by the aforementioned Idemitsu Kosan Co., Ltd. include Poly bd. Examples of other polymerizable compounds having a flexible skeleton manufactured by the above-mentioned Kaneka company include Epyon series. Examples of other polymerizable compounds with flexible skeletons manufactured by Toagosei Co., Ltd. include ARUFON US-6000, macromonomer series, and the like. Examples of other polymerizable compounds having a flexible skeleton manufactured by Soken Chemical Co., Ltd. include ACTFLOW series. Examples of other polymerizable compounds with flexible skeletons manufactured by Shin-Etsu Chemical Co., Ltd. include modified silicone oils.

上述具有柔軟性骨架之聚合性化合物可單獨使用，亦可將2種以上組合而使用。The above-mentioned polymerizable compound having a flexible skeleton may be used alone or in combination of two or more kinds.

上述硬化性樹脂100重量份中之上述具有柔軟性骨架之聚合性化合物之含量之較佳下限為20重量份。藉由使上述具有柔軟性骨架之聚合性化合物之含量為該範圍，容易將所獲得之液晶顯示元件用密封劑之硬化物之鉛筆硬度設為3H以下。上述具有柔軟性骨架之聚合性化合物之含量之更佳下限為30重量份，進而更佳下限為60重量份。 另外，就防透濕性等觀點而言，上述硬化性樹脂100重量份中之上述具有柔軟性骨架之聚合性化合物之含量之較佳上限為80重量份。The lower limit of the content of the polymerizable compound having a flexible skeleton in 100 parts by weight of the curable resin is preferably 20 parts by weight. By setting the content of the polymerizable compound having a flexible skeleton in this range, it is easy to set the pencil hardness of the cured product of the obtained sealing compound for liquid crystal display elements to 3H or less. The lower limit of the content of the above-mentioned polymerizable compound having a flexible skeleton is more preferably 30 parts by weight, and even more preferably the lower limit is 60 parts by weight. In addition, from the viewpoint of moisture permeability resistance, etc., a preferable upper limit of the content of the polymerizable compound having a flexible skeleton in 100 parts by weight of the curable resin is 80 parts by weight.

關於上述硬化性樹脂，為了提昇所獲得之液晶顯示元件用密封劑之接著性或低液晶污染性等，較佳為含有除上述具有柔軟性骨架之聚合性化合物以外之其他硬化性樹脂。作為上述其他硬化性樹脂，可適宜地使用除上述具有柔軟性骨架之環氧化合物以外之其他環氧化合物或除上述具有柔軟性骨架之（甲基）丙烯酸化合物以外之其他（甲基）丙烯酸化合物。Regarding the above-mentioned curable resin, in order to improve the adhesiveness or low liquid crystal contamination of the obtained sealing compound for liquid crystal display elements, it is preferable to contain another curable resin in addition to the above-mentioned polymerizable compound having a flexible skeleton. As the above-mentioned other curable resin, other epoxy compounds other than the above-mentioned epoxy compound having a flexible skeleton or other (meth)acrylic compounds other than the above-mentioned (meth)acrylic compound having a flexible skeleton can be suitably used. .

作為上述其他環氧化合物，例如可列舉：雙酚A型環氧樹脂、雙酚F型環氧樹脂、雙酚E型環氧樹脂、雙酚S型環氧樹脂、2,2'－二烯丙基雙酚A型環氧樹脂、氫化雙酚型環氧樹脂、環氧丙烷加成雙酚A型環氧樹脂、間苯二酚型環氧樹脂、聯苯型環氧樹脂、二苯醚型環氧樹脂、二環戊二烯型環氧樹脂、萘型環氧樹脂、苯酚酚醛清漆型環氧樹脂、鄰甲酚酚醛清漆型環氧樹脂、二環戊二烯酚醛清漆型環氧樹脂、聯苯酚醛清漆型環氧樹脂、萘酚酚醛清漆型環氧樹脂、縮水甘油胺型環氧樹脂、烷基多元醇型環氧樹脂、縮水甘油酯化合物等。Examples of the above-mentioned other epoxy compounds include bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol E type epoxy resin, bisphenol S type epoxy resin, and 2,2'-diene Propyl bisphenol A epoxy resin, hydrogenated bisphenol epoxy resin, propylene oxide addition bisphenol A epoxy resin, resorcinol epoxy resin, biphenyl epoxy resin, diphenyl ether Type epoxy resin, dicyclopentadiene type epoxy resin, naphthalene type epoxy resin, phenol novolak type epoxy resin, o-cresol novolak type epoxy resin, dicyclopentadiene novolak type epoxy resin , Biphenol novolac type epoxy resin, naphthol novolac type epoxy resin, glycidyl amine type epoxy resin, alkyl polyol type epoxy resin, glycidyl ester compound, etc.

另外，上述硬化性樹脂亦可含有1分子中具有環氧基及（甲基）丙烯醯基之化合物作為上述其他環氧化合物。作為此種化合物，例如可列舉藉由使1分子中具有2個以上環氧基而不具有柔軟性骨架之環氧化合物之一部分環氧基與（甲基）丙烯酸反應所獲得的部分（甲基）丙烯酸改質環氧樹脂等。Moreover, the said curable resin may contain the compound which has an epoxy group and a (meth)acryl group in 1 molecule as the said other epoxy compound. As such a compound, for example, a part (methyl) obtained by reacting a part of an epoxy group of an epoxy compound having two or more epoxy groups in a molecule without a flexible skeleton with (meth)acrylic acid can be mentioned. ) Acrylic modified epoxy resin, etc.

作為上述其他（甲基）丙烯酸化合物，例如可列舉：藉由使（甲基）丙烯酸與不具有柔軟性骨架之環氧化合物反應所獲得之環氧（甲基）丙烯酸酯、藉由使（甲基）丙烯酸與具有羥基而不具有柔軟性骨架之化合物反應所獲得之（甲基）丙烯酸酯化合物等。其中，較佳為環氧（甲基）丙烯酸酯。另外，關於上述其他（甲基）丙烯酸化合物，因反應性較高而較佳為分子中具有2個以上（甲基）丙烯醯基者。Examples of the above-mentioned other (meth)acrylic compounds include epoxy (meth)acrylates obtained by reacting (meth)acrylic acid with an epoxy compound that does not have a flexible skeleton, and by using (meth)acrylic acid (Meth)acrylate compound obtained by reacting acrylic acid with a compound having a hydroxyl group but not a flexible skeleton, etc. Among them, epoxy (meth)acrylate is preferred. In addition, the other (meth)acrylic compound described above is preferably one having two or more (meth)acrylic groups in the molecule because of its high reactivity.

作為上述其他（甲基）丙烯酸化合物之環氧（甲基）丙烯酸酯，例如可列舉藉由使不具有柔軟性骨架之環氧化合物與（甲基）丙烯酸按照常規方法於鹼性觸媒之存在下反應所獲得者等。As the epoxy (meth)acrylate of the above-mentioned other (meth)acrylic compounds, for example, the presence of an epoxy compound without a flexible skeleton and (meth)acrylic acid in a basic catalyst according to a conventional method can be mentioned. The winners of the next response and so on.

作為成為用於合成上述環氧（甲基）丙烯酸酯之原料的不具有柔軟性骨架之環氧化合物，可列舉與上述其他環氧化合物相同者。As an epoxy compound which does not have a flexible skeleton used as a raw material for synthesizing the said epoxy (meth)acrylate, what is the same as the said other epoxy compound is mentioned.

上述其他硬化性樹脂可單獨使用，亦可將2種以上組合而使用。The above-mentioned other curable resins may be used alone or in combination of two or more kinds.

作為上述具有柔軟性之聚合物，例如可列舉（甲基）丙烯酸聚合物等。 作為上述具有柔軟性之聚合物中之市售者，例如可列舉ARUFON UG－4000（東亞合成公司製造）等。 上述具有柔軟性之聚合物可單獨使用，亦可將2種以上組合而使用。Examples of the polymer having flexibility include (meth)acrylic polymers. As a commercially available one of the above-mentioned flexible polymers, for example, ARUFON UG-4000 (manufactured by Toagosei Co., Ltd.) can be cited. The above-mentioned flexible polymer may be used alone or in combination of two or more kinds.

本發明之液晶顯示元件用密封劑總體100重量份中之上述具有柔軟性之聚合物之含量之較佳下限為5重量份。藉由使上述具有柔軟性之聚合物之含量為該範圍，容易將所獲得之液晶顯示元件用密封劑之硬化物之鉛筆硬度設為3H以下。上述具有柔軟性之聚合物之含量的更佳下限為10重量份。The preferable lower limit of the content of the above-mentioned flexible polymer in 100 parts by weight of the entire sealing compound for liquid crystal display elements of the present invention is 5 parts by weight. By setting the content of the above-mentioned flexible polymer within this range, it is easy to make the pencil hardness of the cured product of the obtained sealing compound for liquid crystal display elements 3H or less. The lower limit of the content of the above-mentioned flexible polymer is more preferably 10 parts by weight.

作為上述柔軟粒子，例如可列舉橡膠粒子、胺酯粒子等。另外，上述柔軟粒子可具有芯殼結構。Examples of the above-mentioned flexible particles include rubber particles and urethane particles. In addition, the aforementioned soft particles may have a core-shell structure.

作為上述橡膠粒子，例如可列舉：丙烯酸橡膠粒子、丁二烯橡膠粒子、異戊二烯橡膠粒子、腈橡膠粒子、聚矽氧橡膠粒子、硫化物系橡膠粒子、氟橡膠粒子等。 作為上述橡膠粒子中之市售者，例如可列舉：Kaneka公司製造之橡膠粒子、日本ZEON公司製造之橡膠粒子、Aica Kogyo公司製造之橡膠粒子、Toray Fine Chemicals公司製造之橡膠粒子等。 作為上述Kaneka公司製造之橡膠粒子，例如可列舉Kaneace B系列、Kaneace FM系列等。 作為上述日本ZEON公司製造之橡膠粒子，例如可列舉Nipol系列等。 作為上述Aica Kogyo公司製造之橡膠粒子，例如可列舉Zefiac F351等。 作為上述Toray Fine Chemicals公司製造之橡膠粒子，例如可列舉Thiokol LP－282等。Examples of the rubber particles include acrylic rubber particles, butadiene rubber particles, isoprene rubber particles, nitrile rubber particles, silicone rubber particles, sulfide-based rubber particles, and fluororubber particles. Examples of commercially available rubber particles among the above-mentioned rubber particles include rubber particles manufactured by Kaneka Corporation, rubber particles manufactured by ZEON Corporation, rubber particles manufactured by Aica Kogyo Corporation, rubber particles manufactured by Toray Fine Chemicals, etc. Examples of the rubber particles manufactured by Kaneka include Kaneace B series and Kaneace FM series. Examples of the rubber particles manufactured by the above-mentioned Japanese ZEON company include Nipol series. Examples of the rubber particles manufactured by Aica Kogyo include Zefiac F351. Examples of the rubber particles manufactured by the Toray Fine Chemicals company include Thiokol LP-282.

作為上述胺酯粒子中之市售者，例如可列舉根上化學工業公司製造之胺酯粒子、大日精化工業公司製造之胺酯粒子等。作為上述根上化學工業公司製造之胺酯粒子，例如可列舉Art Pearl等。作為上述大日精化工業公司製造之胺酯粒子，例如可列舉DAIMIC BEAZ等。Examples of commercially available urethane particles include urethane particles manufactured by Negami Chemical Industry Co., Ltd., urethane particles manufactured by Dainichi Seiki Kogyo Co., Ltd., and the like. Examples of the urethane particles manufactured by the aforementioned Negami Chemical Industry Co., Ltd. include Art Pearl. Examples of the urethane particles produced by the aforementioned Dainichi Seiki Kogyo Co., Ltd. include DAIMIC BEAZ.

上述柔軟粒子可單獨使用，亦可將2種以上組合而使用。The above-mentioned soft particles may be used alone or in combination of two or more kinds.

本發明之液晶顯示元件用密封劑100重量份中之上述柔軟粒子之含量之較佳下限為20重量份。藉由使上述柔軟粒子之含量為該範圍，容易將所獲得之液晶顯示元件用密封劑之硬化物之鉛筆硬度設為3H以下。上述柔軟粒子之含量之更佳下限為30重量份。 另外，於將上述具有柔軟性骨架之聚合性化合物與上述柔軟粒子併用之情形時，上述柔軟粒子之含量相對於上述硬化性樹脂100重量份，較佳下限為10重量份。藉由使上述柔軟粒子之含量為該範圍，容易將所獲得之液晶顯示元件用密封劑之硬化物之鉛筆硬度設為3H以下。於將上述具有柔軟性骨架之聚合性化合物與上述柔軟粒子併用之情形時之上述柔軟粒子之含量之更佳下限為15重量份。The lower limit of the content of the soft particles in 100 parts by weight of the sealing compound for liquid crystal display elements of the present invention is preferably 20 parts by weight. By setting the content of the soft particles in this range, it is easy to make the pencil hardness of the cured product of the obtained sealing compound for liquid crystal display elements 3H or less. The lower limit of the content of the soft particles is more preferably 30 parts by weight. In addition, when the polymerizable compound having a flexible skeleton is used in combination with the flexible particles, the content of the flexible particles is preferably 10 parts by weight relative to 100 parts by weight of the curable resin. By setting the content of the soft particles in this range, it is easy to make the pencil hardness of the cured product of the obtained sealing compound for liquid crystal display elements 3H or less. The lower limit of the content of the soft particles when the polymerizable compound having a flexible skeleton is used in combination with the soft particles is more preferably 15 parts by weight.

本發明之液晶顯示元件用密封劑含有聚合起始劑及／或熱硬化劑。 本發明之液晶顯示元件用密封劑較佳為含有光自由基聚合起始劑及熱硬化劑。The sealing compound for liquid crystal display elements of this invention contains a polymerization initiator and/or a thermosetting agent. It is preferable that the sealing compound for liquid crystal display elements of this invention contains a photoradical polymerization initiator and a thermosetting agent.

作為上述光自由基聚合起始劑，例如可列舉：二苯甲酮系化合物、苯乙酮系化合物、醯基膦氧化物系化合物、二茂鈦系化合物、肟酯系化合物、安息香醚系化合物、9－氧硫𠮿

Figure 109145515-0000-3
等。Examples of the aforementioned photoradical polymerization initiator include: benzophenone-based compounds, acetophenone-based compounds, phosphine oxide-based compounds, titanocene-based compounds, oxime ester-based compounds, and benzoin ether-based compounds , 9-oxysulfur 𠮿
Figure 109145515-0000-3
Wait.

作為上述光自由基聚合起始劑中之市售者，例如可列舉BASF公司製造之光自由基聚合起始劑、東京化成工業公司製造之光自由基聚合起始劑等。 作為上述BASF公司製造之光自由基聚合起始劑，例如可列舉：IRGACURE 184、IRGACURE 369、IRGACURE 379、IRGACURE 651、IRGACURE 819、IRGACURE 907、IRGACURE 2959、IRGACURE OXE01、Lucirin TPO等。 作為上述東京化成工業公司製造之光自由基聚合起始劑，例如可列舉安息香甲醚、安息香乙醚、安息香異丙醚等。As a commercially available one among the above-mentioned photoradical polymerization initiators, for example, a photoradical polymerization initiator manufactured by BASF Corporation, a photoradical polymerization initiator manufactured by Tokyo Chemical Industry Co., Ltd., and the like can be cited. Examples of the photoradical polymerization initiator manufactured by BASF include IRGACURE 184, IRGACURE 369, IRGACURE 379, IRGACURE 651, IRGACURE 819, IRGACURE 907, IRGACURE 2959, IRGACURE OXE01, Lucirin TPO, and the like. As the photo-radical polymerization initiator manufactured by the Tokyo Chemical Industry Co., Ltd., for example, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, and the like can be cited.

本發明之液晶顯示元件用密封劑可使用熱自由基聚合起始劑作為上述聚合起始劑。 作為上述熱自由基聚合起始劑，例如可列舉由偶氮化合物、有機過氧化物等所構成者。其中，較佳為由高分子偶氮化合物所構成之高分子偶氮起始劑。 此外，於本說明書中，所謂高分子偶氮化合物，意指具有偶氮基且藉由熱會生成可使（甲基）丙烯醯氧基硬化之自由基的數量平均分子量為300以上之化合物。The sealing compound for liquid crystal display elements of this invention can use a thermal radical polymerization initiator as the said polymerization initiator. Examples of the thermal radical polymerization initiator include those composed of azo compounds, organic peroxides, and the like. Among them, a polymer azo initiator composed of a polymer azo compound is preferred. In addition, in the present specification, the term "polymer azo compound" means a compound having an azo group and generating radicals that can harden (meth)acryloxy groups by heat and having a number average molecular weight of 300 or more.

上述高分子偶氮化合物之數量平均分子量之較佳下限為1000，較佳上限為30萬。藉由使上述高分子偶氮化合物之數量平均分子量為該範圍，可防止對液晶之不良影響，並且容易地混合於硬化性樹脂中。上述高分子偶氮化合物之數量平均分子量之更佳下限為5000，更佳上限為10萬，進而更佳下限為1萬，進而更佳上限為9萬。 此外，於本說明書中，上述數量平均分子量係利用凝膠滲透層析法（GPC），使用四氫呋喃作為溶劑進行測定，並藉由聚苯乙烯換算而求出之值。作為藉由GPC測定聚苯乙烯換算之數量平均分子量時之管柱，例如可列舉Shodex LF－804（昭和電工公司製造）等。The preferred lower limit of the number average molecular weight of the above-mentioned polymer azo compound is 1,000, and the preferred upper limit is 300,000. By setting the number average molecular weight of the polymer azo compound within this range, it is possible to prevent adverse effects on the liquid crystal, and to easily mix it with the curable resin. The lower limit of the number average molecular weight of the polymer azo compound is more preferably 5,000, the upper limit is more preferably 100,000, the lower limit is more preferably 10,000, and the upper limit is more preferably 90,000. In addition, in this specification, the said number average molecular weight is a value calculated|required by polystyrene conversion after measuring by gel permeation chromatography (GPC) using tetrahydrofuran as a solvent. As the column when the number average molecular weight in terms of polystyrene is measured by GPC, for example, Shodex LF-804 (manufactured by Showa Denko) can be cited.

作為上述高分子偶氮化合物，例如可列舉具有經由偶氮基而鍵結有多個聚環氧烷或聚二甲基矽氧烷等單元之結構者。 作為具有經由上述偶氮基而鍵結有多個聚環氧烷等單元之結構之高分子偶氮化合物，較佳為具有聚環氧乙烷結構者。 作為上述高分子偶氮化合物，具體而言，例如可列舉：4,4'－偶氮雙（4－氰基戊酸）與聚伸烷基二醇之縮聚物、或4,4'－偶氮雙（4－氰基戊酸）與具有末端胺基之聚二甲基矽氧烷之縮聚物等。 作為上述高分子偶氮化合物中之市售者，例如可列舉：VPE－0201、VPE－0401、VPE－0601、VPS－0501、VPS－1001（均為和光純藥工業公司製造）等。 另外，關於作為非高分子之偶氮化合物而市售者，例如可列舉V－65、V－501（均為和光純藥工業公司製造）等。Examples of the above-mentioned polymer azo compound include those having a structure in which a plurality of units such as polyalkylene oxide or polydimethylsiloxane are bonded via an azo group. The polymer azo compound having a structure in which a plurality of units such as polyalkylene oxide are bonded via the above-mentioned azo group is preferably one having a polyethylene oxide structure. As the above-mentioned polymer azo compound, specifically, for example, a condensation polymer of 4,4'-azobis(4-cyanovaleric acid) and polyalkylene glycol, or 4,4'-co Condensation polymer of nitrobis(4-cyanovaleric acid) and polydimethylsiloxane with terminal amine group, etc. Examples of commercially available ones among the above-mentioned polymer azo compounds include: VPE-0201, VPE-0401, VPE-0601, VPS-0501, VPS-1001 (all manufactured by Wako Pure Chemical Industries, Ltd.), and the like. In addition, examples of those commercially available as non-polymer azo compounds include V-65 and V-501 (all manufactured by Wako Pure Chemical Industries, Ltd.).

作為上述有機過氧化物，例如可列舉：過氧化酮、過氧化縮酮、過氧化氫、過氧化二烷基、過氧化酯、過氧化二醯基、過氧化二碳酸酯等。As said organic peroxide, for example, ketone peroxide, ketal peroxy, hydrogen peroxide, dialkyl peroxide, peroxyester, diacyl peroxide, peroxydicarbonate, etc. are mentioned.

上述聚合起始劑可單獨使用，亦可將2種以上組合而使用。The above-mentioned polymerization initiators may be used alone or in combination of two or more kinds.

關於上述聚合起始劑之含量，相對於上述硬化性樹脂100重量份，較佳下限為0.1重量份，較佳上限為30重量份。藉由使上述聚合起始劑之含量為0.1重量份以上，所獲得之液晶顯示元件用密封劑成為硬化性更優異者。藉由使上述聚合起始劑之含量為30重量份以下，所獲得之液晶顯示元件用密封劑成為保存穩定性更優異者。上述聚合起始劑之含量之更佳下限為1重量份，更佳上限為10重量份，進而更佳上限為5重量份。Regarding the content of the polymerization initiator, with respect to 100 parts by weight of the curable resin, the lower limit is preferably 0.1 parts by weight, and the upper limit is preferably 30 parts by weight. When the content of the polymerization initiator is 0.1 parts by weight or more, the obtained sealing compound for liquid crystal display elements is more excellent in curability. When the content of the polymerization initiator is 30 parts by weight or less, the obtained sealing compound for liquid crystal display elements is more excellent in storage stability. The lower limit of the content of the polymerization initiator is more preferably 1 part by weight, the upper limit is more preferably 10 parts by weight, and the upper limit is still more preferably 5 parts by weight.

作為上述熱硬化劑，較佳為咪唑系熱硬化劑。 作為上述咪唑系熱硬化劑，例如可列舉：2－甲基咪唑、2－乙基－4－甲基咪唑、1－氰乙基－2－苯基咪唑、1－氰乙基－2－苯基咪唑鎓偏苯三酸鹽、2,4－二胺基－6－（2'－甲基咪唑基－（1'））－乙基－對稱三

Figure 109145515-A0304-12-0000-4
、2,4－二胺基－6－（2'－甲基咪唑基－（1'））－乙基－對稱三
Figure 109145515-A0304-12-0000-4
異三聚氰酸加成物等。As the above-mentioned thermosetting agent, an imidazole-based thermosetting agent is preferable. Examples of the imidazole-based thermosetting agent include 2-methylimidazole, 2-ethyl-4-methylimidazole, 1-cyanoethyl-2-phenylimidazole, and 1-cyanoethyl-2-benzene. Imidazolium trimellitate, 2,4-diamino-6-(2'-methylimidazolyl-(1'))-ethyl-symmetric three
Figure 109145515-A0304-12-0000-4
, 2,4-Diamino-6-(2'-methylimidazolyl-(1'))-ethyl-symmetric three
Figure 109145515-A0304-12-0000-4
Isocyanuric acid adducts, etc.

另外，作為上述咪唑系熱硬化劑，亦可使用加成物型之硬化劑。藉由使用上述加成物型之硬化劑，可抑制密封劑之過度之增黏。 作為上述加成物型之硬化劑，例如可列舉藉由咪唑化合物與環氧化合物等反應所獲得之加成物體。 作為上述加成物型之硬化劑中之市售者，例如可列舉：Ajinomoto Fine－Techno公司製造之加成物型之硬化劑、四國化成工業公司製造之加成物型之硬化劑、三菱化學公司製造之加成物型之硬化劑等。 作為上述Ajinomoto Fine－Techno公司製造之加成物型之硬化劑，例如可列舉：Amicure PN－23、Amicure PN－23J、Amicure PN－H、Amicure PN－31、Amicure PN－31J、Amicure PN－40、Amicure PN－40J、Amicure PN－50、Amicure PN－F、Amicure MY－24、Amicure MY－H等。 作為上述四國化成工業公司製造之加成物型之硬化劑，例如可列舉P－0505等。 作為上述三菱化學公司製造之加成物型之硬化劑，例如可列舉P－200等。In addition, as the above-mentioned imidazole-based thermosetting agent, an adduct type curing agent may also be used. By using the above-mentioned adduct type hardener, the excessive viscosity increase of the sealant can be suppressed. As the above-mentioned adduct type hardener, for example, an adduct obtained by reacting an imidazole compound with an epoxy compound or the like can be cited. Examples of commercially available adduct type hardeners include the adduct type hardener manufactured by Ajinomoto Fine-Techno, the adduct type hardener manufactured by Shikoku Kasei Kogyo Co., Ltd., and Mitsubishi Adduct type hardeners manufactured by chemical companies, etc. Examples of the adduct type hardener manufactured by Ajinomoto Fine-Techno include: Amicure PN-23, Amicure PN-23J, Amicure PN-H, Amicure PN-31, Amicure PN-31J, Amicure PN-40 , Amicure PN-40J, Amicure PN-50, Amicure PN-F, Amicure MY-24, Amicure MY-H, etc. As the adduct type hardener manufactured by the above-mentioned Shikoku Kasei Kogyo Co., Ltd., for example, P-0505 and the like can be cited. As the adduct type hardener manufactured by the above-mentioned Mitsubishi Chemical Corporation, for example, P-200 can be cited.

作為上述熱硬化劑，亦可使用除上述咪唑系熱硬化劑以外之其他熱硬化劑。 作為上述其他熱硬化劑，例如可列舉：有機醯肼、胺化合物、多酚系化合物、酸酐等。其中，可適宜地使用有機醯肼。As the above-mentioned thermosetting agent, other thermosetting agents other than the above-mentioned imidazole-based thermosetting agent may also be used. As said other thermosetting agent, organic hydrazine, amine compound, polyphenol type compound, acid anhydride etc. are mentioned, for example. Among them, organic hydrazine can be suitably used.

作為上述有機醯肼，例如可列舉：癸二醯肼、間苯二甲醯肼、己二醯肼、丙二醯肼等。 作為上述有機醯肼中之市售者，例如可列舉大塚化學公司製造之有機醯肼、Ajinomoto Fine－Techno公司製造之有機醯肼等。 作為上述大塚化學公司製造之有機醯肼，例如可列舉SDH、ADH等。 作為上述Ajinomoto Fine－Techno公司製造之有機醯肼，例如可列舉：Amicure VDH、Amicure VDH－J、Amicure UDH、Amicure UDH－J等。As said organic hydrazine, sebacic hydrazine, isophthalic hydrazine, hexadihydrazine, malondihydrazine, etc. are mentioned, for example. As a commercially available one among the above-mentioned organic hydrazine, organic hydrazine manufactured by Otsuka Chemical Co., Ltd., organic hydrazine manufactured by Ajinomoto Fine-Techno, etc. can be mentioned, for example. Examples of the organic hydrazine manufactured by Otsuka Chemical Co., Ltd. include SDH, ADH, and the like. Examples of the organic hydrazine manufactured by the aforementioned Ajinomoto Fine-Techno company include Amicure VDH, Amicure VDH-J, Amicure UDH, Amicure UDH-J, and the like.

上述熱硬化劑可單獨使用，亦可將2種以上組合而使用。The said thermosetting agent may be used individually or in combination of 2 or more types.

關於上述熱硬化劑之含量，相對於上述硬化性樹脂100重量份，較佳下限為1重量份，較佳上限為50重量份。藉由使上述熱硬化劑之含量為該範圍，可於不使所獲得之液晶顯示元件用密封劑之塗佈性等變差之情況下製成熱硬化性更優異者。上述熱硬化劑之含量之更佳上限為30重量份。Regarding the content of the thermosetting agent, with respect to 100 parts by weight of the curable resin, the lower limit is preferably 1 part by weight, and the upper limit is preferably 50 parts by weight. By making the content of the said thermosetting agent into this range, it can be set as the thing with more excellent thermosetting property, without deteriorating the coatability etc. of the sealing compound for liquid crystal display elements obtained. The more preferable upper limit of the content of the thermal hardening agent is 30 parts by weight.

關於本發明之液晶顯示元件用密封劑，為了黏度之提昇、由應力分散效果而帶來之進一步之接著性之提昇、線膨脹率之改善、硬化物之耐濕性之提昇等，較佳為含有無機填充劑。Regarding the sealing compound for liquid crystal display elements of the present invention, for the purpose of improving viscosity, further improvement of adhesiveness due to stress dispersion effect, improvement of linear expansion rate, improvement of moisture resistance of hardened material, etc., it is preferably Contains inorganic fillers.

作為上述無機填充劑，例如可列舉：二氧化矽、滑石、玻璃珠粒、石棉、石膏、矽藻土、膨潤石、皂土、蒙脫石、絹雲母、活性白土、氧化鋁、氧化鋅、氧化鐵、氧化鎂、氧化錫、氧化鈦、碳酸鈣、碳酸鎂、氫氧化鎂、氫氧化鋁、氮化鋁、氮化矽、硫酸鋇、矽酸鈣等。Examples of the above-mentioned inorganic fillers include: silica, talc, glass beads, asbestos, gypsum, diatomaceous earth, bentonite, bentonite, montmorillonite, sericite, activated clay, alumina, zinc oxide, Iron oxide, magnesium oxide, tin oxide, titanium oxide, calcium carbonate, magnesium carbonate, magnesium hydroxide, aluminum hydroxide, aluminum nitride, silicon nitride, barium sulfate, calcium silicate, etc.

關於上述無機填充劑之含量，相對於上述硬化性樹脂100重量份，較佳下限為15重量份。藉由使上述無機填充劑之含量為15重量份以上，成為於反覆發生低溫與高溫之環境變化時之耐熱震性優異者。上述無機填充劑之含量之更佳下限為25重量份。 另外，就塗佈性等觀點而言，關於上述無機填充劑之含量，相對於上述硬化性樹脂100重量份，較佳上限為60重量份。Regarding the content of the inorganic filler, the lower limit is preferably 15 parts by weight relative to 100 parts by weight of the curable resin. By making the content of the above-mentioned inorganic filler to be 15 parts by weight or more, it becomes one having excellent thermal shock resistance when the environment changes of low temperature and high temperature repeatedly occur. The lower limit of the content of the above-mentioned inorganic filler is more preferably 25 parts by weight. In addition, from the viewpoint of coating properties and the like, the content of the inorganic filler is preferably an upper limit of 60 parts by weight relative to 100 parts by weight of the curable resin.

本發明之液晶顯示元件用密封劑較佳為含有離子捕捉劑。 上述離子捕捉劑具有藉由捕捉上述液晶顯示元件用密封劑中之水溶性離子而抑制液晶污染之產生的作用。It is preferable that the sealing compound for liquid crystal display elements of this invention contains an ion scavenger. The ion trapping agent has a function of suppressing the occurrence of liquid crystal contamination by trapping water-soluble ions in the sealing compound for liquid crystal display elements.

作為上述離子捕捉劑，可列舉捕捉陽離子之陽離子捕捉劑、捕捉陰離子之陰離子捕捉劑、以及捕捉陽離子及陰離子之兩性離子捕捉劑，就抑制液晶污染之產生之效果更優異之方面而言，較佳為捕捉陽離子者，也就是陽離子捕捉劑、兩性離子捕捉劑，更佳為陽離子捕捉劑。Examples of the ion scavenger include a cation scavenger that traps cations, an anion scavenger that traps anions, and amphoteric ion scavengers that capture cations and anions. In terms of the effect of suppressing the occurrence of liquid crystal contamination, it is preferable Those to capture cations are cation traps, zwitterion traps, and more preferably cation traps.

作為上述離子捕捉劑，例如可列舉：鋯系化合物、銻系化合物、鉍系化合物、鎂系化合物、鋁系化合物等。其中，就抑制液晶污染之產生之效果更優異之方面而言，較佳為具有陽離子捕獲效果之鋯系化合物或銻系化合物，更佳為鋯系化合物。Examples of the ion scavenger include zirconium-based compounds, antimony-based compounds, bismuth-based compounds, magnesium-based compounds, and aluminum-based compounds. Among them, the zirconium compound or antimony compound having a cation trapping effect is preferable, and the zirconium compound is more preferable in terms of the effect of suppressing the generation of liquid crystal contamination.

作為上述鋯系化合物中之市售者，例如可列舉IXE－100（東亞合成公司製造）等。As a commercially available one among the above-mentioned zirconium-based compounds, for example, IXE-100 (manufactured by Toagosei Co., Ltd.) and the like can be cited.

作為上述銻系化合物中之市售者，例如可列舉和光純藥工業公司製造之銻系化合物、東亞合成公司製造之銻系化合物等。 作為上述和光純藥工業公司製造之銻系化合物，例如可列舉五氧化銻等。 作為上述東亞合成公司製造之銻系化合物，例如可列舉IXE－300、IXE－600、IXE－633等。Among the above-mentioned antimony compounds commercially available, for example, antimony compounds manufactured by Wako Pure Chemical Industries, Ltd., antimony compounds manufactured by Toagosei Co., Ltd., and the like can be cited. As the antimony compound manufactured by the above-mentioned Wako Pure Chemical Industries, Ltd., for example, antimony pentoxide and the like can be cited. Examples of the antimony-based compound manufactured by the Toagosei Co., Ltd. include IXE-300, IXE-600, IXE-633, and the like.

作為上述鉍系化合物中之市售者，例如可列舉IXE－500、IXE－530、IXE－550（均為東亞合成公司製造）等。Examples of commercially available bismuth compounds include IXE-500, IXE-530, and IXE-550 (all manufactured by Toagosei Co., Ltd.).

作為上述鎂系化合物中之市售者，例如可列舉IXE－700F（東亞合成公司製造）等。As a commercially available one among the above-mentioned magnesium-based compounds, for example, IXE-700F (manufactured by Toagosei Co., Ltd.) and the like can be cited.

上述離子捕捉劑可單獨使用，亦可將2種以上組合而使用。The above-mentioned ion scavengers may be used alone or in combination of two or more kinds.

本發明之液晶顯示元件用密封劑100重量份中之上述離子捕捉劑之含量之較佳下限為2重量份，較佳上限為30重量份。藉由使上述離子捕捉劑之含量為該範圍，可於不使塗佈性等變差之情況下成為抑制液晶污染之產生之效果更優異者。上述離子捕捉劑之含量之更佳下限為5重量份，更佳上限為20重量份。The preferable lower limit of the content of the ion trapping agent in 100 parts by weight of the sealing compound for liquid crystal display elements of the present invention is 2 parts by weight, and the preferable upper limit is 30 parts by weight. By setting the content of the ion scavenger in this range, the effect of suppressing the occurrence of liquid crystal contamination can be more excellent without deteriorating coating properties and the like. The lower limit of the content of the ion trapping agent is more preferably 5 parts by weight, and the upper limit is more preferably 20 parts by weight.

關於本發明之液晶顯示元件用密封劑，為了進一步提昇接著性，較佳為含有矽烷偶合劑。上述矽烷偶合劑主要具有作為用以使密封劑與基板等良好地接著之接著助劑的作用。 作為上述矽烷偶合劑，例如可適宜地使用：3－胺基丙基三甲氧基矽烷、3－巰基丙基三甲氧基矽烷、3－縮水甘油氧基丙基三甲氧基矽烷等。 上述矽烷偶合劑可單獨使用，亦可將2種以上組合而使用。Regarding the sealing compound for liquid crystal display elements of the present invention, in order to further improve adhesiveness, it is preferable to contain a silane coupling agent. The above-mentioned silane coupling agent mainly has a role as an adhesive auxiliary agent for adhering a sealant to a substrate and the like well. As the silane coupling agent, for example, 3-aminopropyltrimethoxysilane, 3-mercaptopropyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, etc. can be suitably used. The said silane coupling agent may be used individually or in combination of 2 or more types.

本發明之液晶顯示元件用密封劑100重量份中之上述矽烷偶合劑之含量之較佳下限為0.1重量份，較佳上限為20重量份。藉由使上述矽烷偶合劑之含量為該範圍，可進一步發揮抑制液晶污染之產生並且使接著性提昇之效果。上述矽烷偶合劑之含量之更佳下限為0.5重量份，更佳上限為10重量份。The lower limit of the content of the silane coupling agent in 100 parts by weight of the sealing compound for liquid crystal display elements of the present invention is preferably 0.1 parts by weight, and the upper limit is preferably 20 parts by weight. By setting the content of the silane coupling agent in this range, the effect of suppressing the occurrence of liquid crystal contamination and improving adhesiveness can be further exerted. The lower limit of the content of the silane coupling agent is more preferably 0.5 parts by weight, and the upper limit is more preferably 10 parts by weight.

本發明之液晶顯示元件用密封劑亦可含有遮光劑。藉由含有上述遮光劑，本發明之液晶顯示元件用密封劑可適宜地用作遮光密封劑。The sealing compound for liquid crystal display elements of this invention may contain a light-shielding agent. By containing the said light-shielding agent, the sealing compound for liquid crystal display elements of this invention can be used suitably as a light-shielding sealing compound.

作為上述遮光劑，例如可列舉：氧化鐵、鈦黑、苯胺黑、花青黑、富勒烯、碳黑、樹脂被覆型碳黑等。其中，較佳為鈦黑。Examples of the light-shielding agent include iron oxide, titanium black, aniline black, cyanine black, fullerene, carbon black, and resin-coated carbon black. Among them, titanium black is preferred.

上述鈦黑係與針對波長300 nm以上且800 nm以下之光之平均穿透率相比，針對紫外線區域附近、尤其是波長370 nm以上且450 nm以下之光之穿透率更高的物質。即，上述鈦黑係具有如下性質之遮光劑：藉由充分地遮蔽可見光區域之波長之光而對本發明之液晶顯示元件用密封劑賦予遮光性，另一方面，使紫外線區域附近之波長之光穿透。作為本發明之液晶顯示元件用密封劑所含有之遮光劑，較佳為絕緣性較高之物質，作為絕緣性較高之遮光劑，亦較佳為鈦黑。The above-mentioned titanium black is a substance having a higher transmittance in the vicinity of the ultraviolet region, especially light with a wavelength of 370 nm or more and 450 nm or less than the average transmittance of light having a wavelength of 300 nm or more and 800 nm or less. That is, the above-mentioned titanium black is a light-shielding agent having the following properties: it imparts light-shielding properties to the sealing compound for liquid crystal display elements of the present invention by sufficiently shielding light of a wavelength in the visible light region, and on the other hand, makes light of a wavelength near the ultraviolet region penetrate. As the light-shielding agent contained in the sealing compound for liquid crystal display elements of the present invention, a substance with high insulation is preferable, and as a light-shielding agent with high insulation, titanium black is also preferable.

上述鈦黑即便為未經表面處理者亦發揮出充分之效果，但亦可使用表面經偶合劑等有機成分處理者、或經氧化矽、氧化鈦、氧化鍺、氧化鋁、氧化鋯、氧化鎂等無機成分被覆者等經表面處理之鈦黑。其中，就可進一步提昇絕緣性之方面而言，較佳為經有機成分處理者。 另外，使用含有上述鈦黑作為遮光劑之本發明之液晶顯示元件用密封劑所製造之液晶顯示元件由於具有充分之遮光性，故而可實現無漏光且具有較高之對比度、具有優異之圖像顯示品質之液晶顯示元件。The above-mentioned titanium black exhibits a sufficient effect even if it is not surface-treated, but it can also be used with the surface treated with organic components such as coupling agent, or with silicon oxide, titanium oxide, germanium oxide, aluminum oxide, zirconium oxide, and magnesium oxide. Surface-treated titanium black for those covered with other inorganic components. Among them, in terms of further improving insulation properties, those treated with organic components are preferred. In addition, the liquid crystal display element manufactured using the sealant for liquid crystal display element of the present invention containing the titanium black as a light-shielding agent has sufficient light-shielding properties, and therefore can achieve no light leakage, high contrast, and excellent images. Display quality liquid crystal display element.

作為上述鈦黑中之市售者，例如可列舉Mitsubishi Materials公司製造之鈦黑、赤穗化成公司製造之鈦黑等。 作為上述Mitsubishi Materials公司製造之鈦黑，例如可列舉：12S、13M、13M－C、13R－N、14M－C等。 作為上述赤穗化成公司製造之鈦黑，例如可列舉Tilack D等。As a commercially available one among the aforementioned titanium blacks, for example, titanium black manufactured by Mitsubishi Materials Co., Ltd., titanium black manufactured by Ako Kasei Co., Ltd., and the like can be cited. As titanium black manufactured by the said Mitsubishi Materials company, 12S, 13M, 13M-C, 13R-N, 14M-C, etc. are mentioned, for example. As the titanium black manufactured by the aforementioned Ako Kasei Co., Ltd., for example, Tilack D and the like can be cited.

上述鈦黑之比表面積之較佳下限為13 m2 ／g，較佳上限為30 m2 ／g，更佳下限為15 m2 ／g，更佳上限為25 m2 ／g。 另外，上述鈦黑之體積電阻之較佳下限為0.5 Ω・cm，較佳上限為3 Ω・cm，更佳下限為1 Ω・cm，更佳上限為2.5 Ω・cm。The preferred lower limit of the specific surface area of the titanium black is 13 m 2 /g, the preferred upper limit is 30 m 2 /g, the more preferred lower limit is 15 m 2 /g, and the more preferred upper limit is 25 m 2 /g. In addition, the preferred lower limit of the volume resistance of the titanium black is 0.5 Ω·cm, the preferred upper limit is 3 Ω·cm, the more preferred lower limit is 1 Ω·cm, and the more preferred upper limit is 2.5 Ω·cm.

上述遮光劑之平均一次粒徑只要為液晶顯示元件之基板間之距離以下，則無特別限定，較佳下限為1 nm，較佳上限為5 μm。藉由使上述遮光劑之一次粒徑為該範圍，所獲得之液晶顯示元件用密封劑之黏度或搖溶性不會較大地增大，而成為塗佈性更優異者。上述遮光劑之一次粒徑之更佳下限為5 nm，更佳上限為200 nm，進而更佳下限為10 nm，進而更佳上限為100 nm。 此外，上述遮光劑之一次粒徑可使用粒度分佈計（例如，PARTICLE SIZING SYSTEMS公司製造，「NICOMP 380ZLS」）進行測定。The average primary particle size of the aforementioned light-shielding agent is not particularly limited as long as it is less than the distance between the substrates of the liquid crystal display element, and the preferred lower limit is 1 nm, and the preferred upper limit is 5 μm. By setting the primary particle diameter of the said light-shielding agent in this range, the viscosity or thixotropy of the sealing compound for liquid crystal display elements obtained does not increase greatly, and it becomes one which is more excellent in coatability. A more preferable lower limit of the primary particle size of the sunscreen is 5 nm, a more preferable upper limit is 200 nm, a still more preferable lower limit is 10 nm, and a more preferable upper limit is 100 nm. In addition, the primary particle size of the above-mentioned sunscreen can be measured using a particle size distribution meter (for example, "NICOMP 380ZLS" manufactured by PARTICLE SIZING SYSTEMS).

本發明之液晶顯示元件用密封劑100重量份中之上述遮光劑之含量之較佳下限為5重量份，較佳上限為80重量份。藉由使上述遮光劑之含量為該範圍，可於不使所獲得之液晶顯示元件用密封劑之接著性、硬化後之強度、及繪製性較大地降低之情況下進一步發揮提昇遮光性之效果。上述遮光劑之含量之更佳下限為10重量份，更佳上限為70重量份，進而更佳下限為30重量份，進而更佳上限為60重量份。The lower limit of the content of the light-shielding agent in 100 parts by weight of the sealing compound for liquid crystal display elements of the present invention is preferably 5 parts by weight, and the upper limit is preferably 80 parts by weight. By setting the content of the above-mentioned light-shielding agent in this range, the effect of improving light-shielding properties can be further exhibited without greatly reducing the adhesiveness, strength after curing, and drawing properties of the obtained sealing compound for liquid crystal display elements. . The lower limit of the content of the sunscreen is more preferably 10 parts by weight, the upper limit is more preferably 70 parts by weight, the lower limit is still more preferably 30 parts by weight, and the upper limit is still more preferably 60 parts by weight.

本發明之液晶顯示元件用密封劑視需要亦可進而含有應力緩和劑、反應性稀釋劑、觸變劑、間隔物、硬化促進劑、消泡劑、調平劑、聚合抑制劑等添加劑。The sealing compound for liquid crystal display elements of the present invention may further contain additives such as a stress reliever, a reactive diluent, a thixotropic agent, a spacer, a hardening accelerator, a defoamer, a leveling agent, and a polymerization inhibitor, if necessary.

作為製造本發明之液晶顯示元件用密封劑之方法，例如可列舉使用勻相分散機、均質攪拌機、萬能混合機、行星式混合機、捏合機、三輥研磨機等混合機將硬化性樹脂、聚合起始劑及／或熱硬化劑、及無機填充劑等進行混合之方法等。As a method of manufacturing the sealing compound for liquid crystal display elements of the present invention, for example, the curable resin can be mixed with a mixing machine such as a homogeneous disperser, a homomixer, a universal mixer, a planetary mixer, a kneader, and a three-roll mill. Methods of mixing polymerization initiators and/or thermal hardeners, inorganic fillers, etc.

藉由對本發明之液晶顯示元件用密封劑摻合導電性微粒子，可製造上下導通材料。此種含有本發明之液晶顯示元件用密封劑及導電性微粒子之上下導通材料亦為本發明之一。By mixing conductive fine particles with the sealing compound for liquid crystal display elements of the present invention, a vertical conduction material can be produced. Such an upper and lower conduction material containing the sealing compound for liquid crystal display elements of the present invention and conductive fine particles is also one of the present invention.

作為上述導電性微粒子，可使用在金屬球、樹脂微粒子之表面形成有導電金屬層者等。其中，較佳為於樹脂微粒子之表面形成有導電金屬層者，其原因在於：藉由樹脂微粒子之優異之彈性，可於不損傷透明基板等之情況下進行導電連接。As the above-mentioned conductive fine particles, those having a conductive metal layer formed on the surface of metal balls or resin fine particles can be used. Among them, it is preferable to form a conductive metal layer on the surface of the resin particles. The reason is that the excellent elasticity of the resin particles enables conductive connection without damaging the transparent substrate or the like.

使用本發明之液晶顯示元件用密封劑或本發明之上下導通材料而成之液晶顯示元件亦為本發明之一。 作為本發明之液晶顯示元件，較佳為窄邊緣設計之液晶顯示元件。具體而言，較佳為液晶顯示部之周圍之框架部分之寬度為2 mm以下。 另外，製造本發明之液晶顯示元件時之本發明之液晶顯示元件用密封劑之塗佈寬度較佳為1 mm以下。The liquid crystal display element which uses the sealing compound for liquid crystal display elements of this invention or the top and bottom conduction material of this invention is also one of this invention. As the liquid crystal display element of the present invention, a liquid crystal display element with a narrow edge design is preferable. Specifically, it is preferable that the width of the frame portion around the liquid crystal display portion is 2 mm or less. In addition, the coating width of the sealing compound for liquid crystal display elements of the present invention when manufacturing the liquid crystal display element of the present invention is preferably 1 mm or less.

本發明之液晶顯示元件用密封劑可適宜地使用於藉由液晶滴加法之液晶顯示元件之製造。 作為藉由液晶滴加法製造本發明之液晶顯示元件之方法，例如可列舉以下方法等。 首先，進行如下步驟：藉由網版印刷、點膠塗佈等，於基板上將本發明之液晶顯示元件用密封劑等形成為長方形之密封圖案。繼而，進行如下步驟：於本發明之液晶顯示元件用密封劑等未硬化之狀態下對透明基板之框內整個面滴加塗佈液晶之微小滴，立即重疊另一基板。其後，進行如下步驟：對本發明之液晶顯示元件用密封劑等密封圖案部分照射紫外線等光使密封劑暫時硬化、及將暫時硬化之密封劑進行加熱而進行正式硬化，藉由該方法，可獲得液晶顯示元件。The sealing compound for liquid crystal display elements of this invention can be used suitably for manufacture of the liquid crystal display element by a liquid crystal dropping method. As a method of manufacturing the liquid crystal display element of this invention by a liquid crystal dropping method, the following methods etc. are mentioned, for example. First, the following steps are performed: by screen printing, dispensing coating, etc., the sealing compound for liquid crystal display elements of the present invention, etc., are formed into a rectangular sealing pattern on a substrate. Then, the following steps are carried out: in an uncured state such as the sealant for liquid crystal display elements of the present invention, small droplets of liquid crystal are applied to the entire surface of the frame of the transparent substrate, and then the other substrate is immediately superimposed. After that, the following steps are performed: irradiating light such as ultraviolet rays to the sealing pattern portion of the sealant for liquid crystal display elements of the present invention to temporarily harden the sealant, and heating the temporarily hardened sealant for full hardening. By this method, A liquid crystal display element was obtained.

如下硬化物亦為本發明之一，其係使本發明之液晶顯示元件用密封劑硬化而成之硬化物、即、使含有硬化性樹脂與聚合起始劑及／或熱硬化劑之液晶顯示元件用密封劑硬化而成者，並且依據JIS K 5600－5－4之鉛筆硬度為3H以下。 [發明之效果]The following cured product is also one of the present invention, which is a cured product obtained by curing the sealing compound for liquid crystal display elements of the present invention, that is, a liquid crystal display containing a curable resin, a polymerization initiator and/or a thermosetting agent The sealant for components is hardened, and the pencil hardness according to JIS K 5600-5-4 is 3H or less. [Effects of Invention]

根據本發明，可提供即便為窄邊緣設計之液晶顯示元件亦使基板不易產生皸裂或破裂之液晶顯示元件用密封劑。另外，根據本發明，可提供使用該液晶顯示元件用密封劑而成之上下導通材料及液晶顯示元件。進而，根據本發明，可提供使該液晶顯示元件用密封劑硬化而成之硬化物。According to the present invention, it is possible to provide a sealant for a liquid crystal display element that prevents chipping or cracking of the substrate even for a liquid crystal display element designed with a narrow edge. In addition, according to the present invention, it is possible to provide an upper and lower conduction material and a liquid crystal display element using this sealant for liquid crystal display elements. Furthermore, according to this invention, the hardened|cured material which hardened this sealing compound for liquid crystal display elements can be provided.

以下，列舉實施例更詳細地說明本發明，但本發明並不僅限定於該等實施例。Hereinafter, the present invention will be explained in more detail with examples, but the present invention is not limited to these examples.

（實施例1〜5、及比較例1、2） 將表1所記載之摻合比之各材料使用行星式攪拌機（Thinky公司製造，「脫泡練太郎」）進行混合，其後，進而使用三輥研磨機進行混合，藉此製備實施例1〜5、及比較例1、2之各液晶顯示元件用密封劑。另外，使用實施例及比較例所獲得之各液晶顯示元件用密封劑而製作液晶顯示元件。 針對所獲得之各液晶顯示元件用密封劑，使用金屬鹵化物燈照射100 mW／cm2 之紫外線（波長365 nm）30秒鐘，其後於120℃加熱1小時使之硬化，針對所獲得之硬化物，依據JIS K 5600－5－4測定鉛筆硬度。將結果示於表1。(Examples 1 to 5, and Comparative Examples 1 and 2) The materials with the blending ratios described in Table 1 were mixed using a planetary mixer (manufactured by Thinky, "Defoaming Nentaro"), and then used By mixing with a three-roll mill, each sealing compound for liquid crystal display elements of Examples 1 to 5 and Comparative Examples 1 and 2 was prepared. Moreover, the liquid crystal display element was produced using each sealing compound for liquid crystal display elements obtained by the Example and the comparative example. For each obtained sealing compound for liquid crystal display elements, a metal halide lamp was used to irradiate 100 mW/cm 2 ultraviolet rays (wavelength: 365 nm) for 30 seconds, and then heated at 120°C for 1 hour to harden. For the hardened product, the pencil hardness is measured in accordance with JIS K 5600-5-4. The results are shown in Table 1.

＜評價＞ 針對實施例及比較例所獲得之液晶顯示元件用密封劑進行以下評價。將結果示於表1。＜Evaluation＞ The following evaluation was performed about the sealing compound for liquid crystal display elements obtained in an Example and a comparative example. The results are shown in Table 1.

（面板之切斷穩定性） 使間隔物微粒子（積水化學工業公司製造，「Micropearl SI－H050」）1重量份分散於實施例及比較例所獲得之各液晶顯示元件用密封劑100重量份中，以密封劑之線寬成為0.8 mm之方式利用點膠機塗佈於2塊摩擦完畢之附配向膜及透明電極之基板之一者。 繼而，對附透明電極之基板之密封劑之框內整個面滴加塗佈液晶（Chisso公司製造，「JC－5004LA」）之微小滴，並立即貼合另一附透明電極之基板。此時，如圖1（b）般以於各元件（cell）間鄰接之密封劑之繪製部位接觸之方式於基板上製作圖案。對密封劑部分使用金屬鹵化物燈照射100 mW／cm2 之紫外線30秒鐘，其後於120℃加熱1小時使密封劑硬化，以密封劑之硬化物上成為切斷位置之方式使用刻劃器形成切口並進行切割，而製作合計100個液晶顯示元件。 對各液晶顯示元件之切斷之基板進行確認，將所有液晶顯示元件均為確認到基板之皸裂或破裂之情形設為「〇」，將1個以上且未達5個液晶顯示元件確認到基板之皸裂或破裂之情形設為「△」，將5個以上液晶顯示元件確認到基板之皸裂或破裂之情形設為「×」，而對面板之切斷穩定性進行評價。(Panel cutting stability) 1 part by weight of spacer particles (manufactured by Sekisui Chemical Co., Ltd., "Micropearl SI-H050") was dispersed in 100 parts by weight of each liquid crystal display element sealing compound obtained in the examples and comparative examples , Use a dispenser to coat one of the two rubbed substrates with alignment film and transparent electrode so that the line width of the sealant becomes 0.8 mm. Then, drop a small drop of coated liquid crystal (manufactured by Chisso, "JC-5004LA") on the entire surface of the sealant frame of the transparent electrode-attached substrate, and immediately attach another transparent electrode-attached substrate. At this time, as shown in Figure 1(b), patterns are made on the substrate in such a way that the drawing parts of the sealant adjacent to each cell are in contact with each other. Use a metal halide lamp to irradiate ultraviolet light of 100 mW/cm 2 for 30 seconds on the sealant, and then heat at 120°C for 1 hour to harden the sealant, and use the method to cut the hardened part of the sealant. The device was cut and cut to produce a total of 100 liquid crystal display elements. Check the cut substrate of each liquid crystal display element, set all liquid crystal display elements to confirm that the substrate is cracked or cracked, set to "〇", and confirm 1 or more and less than 5 liquid crystal display elements to the substrate The case of cracking or cracking is set as "△", and the case where cracking or cracking of the substrate is confirmed for more than 5 liquid crystal display elements is set to "×", and the cutting stability of the panel is evaluated.

（耐熱震性） 針對上述「（面板之切斷穩定性）」所獲得之60個液晶顯示元件，使用冷熱循環試驗機，將在－30℃保持後升溫至85℃並在85℃保持後降溫至－30℃之過程設為1個循環，將其進行1000個循環而進行冷熱循環試驗。 試驗後，將所有液晶顯示元件均未確認到液晶漏出之情形設為「◎」，將1個或2個液晶顯示元件確認到液晶漏出之情形設為「〇」，將3個或4個液晶顯示元件確認到液晶漏出之情形設為「△」，將5個以上液晶顯示元件確認到液晶漏出之情形設為「×」，而對耐熱震性進行評價。(Heat shock resistance) For the 60 liquid crystal display elements obtained in the above "(Panel cutting stability)", using a thermal cycle tester, the temperature is raised to 85°C after being kept at -30°C, and the temperature is lowered to -30°C after being kept at 85°C The process was set to 1 cycle, and it was subjected to 1000 cycles to perform a cold and heat cycle test. After the test, set the case where liquid crystal leakage is not confirmed in all the liquid crystal display elements as "◎", set the case where liquid crystal leakage is confirmed in one or two liquid crystal display elements as "〇", and display 3 or 4 liquid crystal display elements The case where liquid crystal leakage was confirmed by the element was set to "△", and the case where liquid crystal leakage was confirmed for 5 or more liquid crystal display elements was set to "×", and the thermal shock resistance was evaluated.

[表1]    實施例 比較例 1 2 3 4 5 1 2 組成 （重量份） 硬化性樹脂 三丙二醇二縮水甘油醚之丙烯酸加成物 （共榮社化學公司製造，「Epoxyester 200PA」） 80 60 60 60 40 15 － 雙酚A型環氧丙烯酸酯 （DAICEL－ALLNEX公司製造，「EBECRYL 3700」） － 20 20 20 40 65 80 雙酚A型環氧樹脂 （DIC公司製造，「EPICLON 850」） 20 20 20 20 20 20 20 光自由基聚合起始劑 羥基環己基苯基酮 （BASF公司製造，「IRGACURE 184」） 2 2 2 2 2 2 2 熱硬化劑 咪唑系熱硬化劑 （Ajinomoto Fine－Techno公司製造，「Amicure PN－40J」） 2 2 2 2 2 2 2 癸二醯肼 （大塚化學公司製造，「SDH」） 10 10 10 10 10 10 10 無機填充劑 二氧化矽 （Admatechs公司製造，「Admafine SO－C2」） 5 5 10 20 5 5 5 滑石 （Nippon Talc公司製造，「NANO ACE D－600」） 5 5 5 5 5 5 5 柔軟粒子 芯殼型丙烯酸橡膠微粒子 （Aica Kogyo公司製造，「Zefiac F351」） 15 15 15 15 15 15 15 硬化物之鉛筆硬度 2B H H 2H 3H 5H 6H 評價 面板之切斷穩定性 〇 〇 〇 〇 〇 × × 耐熱震性 △ △ 〇 ◎ △ △ △ [產業上之可利用性][Table 1] Example Comparative example 1 2 3 4 5 1 2 Composition (parts by weight) Hardening resin Acrylic acid adduct of tripropylene glycol diglycidyl ether (manufactured by Kyoeisha Chemical Co., Ltd., "Epoxyester 200PA") 80 60 60 60 40 15 - Bisphenol A epoxy acrylate (manufactured by DAICEL-ALLNEX, "EBECRYL 3700") - 20 20 20 40 65 80 Bisphenol A epoxy resin (manufactured by DIC Corporation, "EPICLON 850") 20 20 20 20 20 20 20 Light radical polymerization initiator Hydroxycyclohexyl phenyl ketone (manufactured by BASF, "IRGACURE 184") 2 2 2 2 2 2 2 Thermal hardener Imidazole-based thermosetting agent (manufactured by Ajinomoto Fine-Techno, "Amicure PN-40J") 2 2 2 2 2 2 2 Sebacic hydrazine (manufactured by Otsuka Chemical Co., "SDH") 10 10 10 10 10 10 10 Inorganic filler Silicon dioxide (manufactured by Admatechs, "Admafine SO-C2") 5 5 10 20 5 5 5 Talc (manufactured by Nippon Talc, "NANO ACE D-600") 5 5 5 5 5 5 5 Soft particles Core-shell type acrylic rubber particles (manufactured by Aica Kogyo, "Zefiac F351") 15 15 15 15 15 15 15 Hardness of the pencil 2B H H 2H 3H 5H 6H Evaluation Panel cut-off stability 〇 〇 〇 〇 〇 X X Thermal shock resistance △ △ 〇 ◎ △ △ △ [Industrial availability]

根據本發明，可提供即便為窄邊緣設計之液晶顯示元件亦使基板不易產生皸裂或破裂之液晶顯示元件用密封劑。另外，根據本發明，可提供使用該液晶顯示元件用密封劑而成之上下導通材料及液晶顯示元件。進而，根據本發明，可提供使該液晶顯示元件用密封劑硬化而成之硬化物。According to the present invention, it is possible to provide a sealant for a liquid crystal display element that prevents chipping or cracking of the substrate even for a liquid crystal display element designed with a narrow edge. In addition, according to the present invention, it is possible to provide an upper and lower conduction material and a liquid crystal display element using this sealant for liquid crystal display elements. Furthermore, according to this invention, the hardened|cured material which hardened this sealing compound for liquid crystal display elements can be provided.

1:母玻璃 2:密封劑之硬化物 3:面板之切斷位置1: mother glass 2: Hardened material of sealant 3: Cut-off position of the panel

[圖1]（a）係表示非窄邊緣設計之習知之液晶顯示元件之面板之切斷位置的示意圖，圖1（b）係表示窄邊緣設計之液晶顯示元件之面板之切斷位置的示意圖。[Figure 1] (a) is a schematic diagram showing the cutting position of the panel of a conventional liquid crystal display element with a non-narrow edge design, and Figure 1(b) is a schematic diagram showing the cutting position of the panel of a liquid crystal display element with a narrow edge design .

1:母玻璃 1: mother glass

2:密封劑之硬化物 2: Hardened material of sealant

3:面板之切斷位置 3: Cut-off position of the panel

Claims (1)

一種液晶顯示元件用密封劑，其含有硬化性樹脂、光自由基聚合起始劑及熱硬化劑， 上述硬化性樹脂包含雙酚A型環氧樹脂， 該液晶顯示元件用密封劑依據JIS K 5600－5－4之硬化物之鉛筆硬度為3H以下。A sealant for liquid crystal display elements, which contains a curable resin, a photo-radical polymerization initiator and a thermosetting agent, The above-mentioned curable resin includes bisphenol A type epoxy resin, The pencil hardness of the cured product of this liquid crystal display element sealing compound is 3H or less in accordance with JIS K 5600-5-4.
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