TW201242986A - Liquid crystal sealing agent, fabricating method of liquid crystal display panel using the same and liquid crystal display panel - Google Patents
Liquid crystal sealing agent, fabricating method of liquid crystal display panel using the same and liquid crystal display panel Download PDFInfo
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- TW201242986A TW201242986A TW101106121A TW101106121A TW201242986A TW 201242986 A TW201242986 A TW 201242986A TW 101106121 A TW101106121 A TW 101106121A TW 101106121 A TW101106121 A TW 101106121A TW 201242986 A TW201242986 A TW 201242986A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
- C08L63/10—Epoxy resins modified by unsaturated compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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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
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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
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/0645—Macromolecular organic compounds, e.g. prepolymers obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds
- C09K2200/0647—Polyepoxides
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- 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
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Abstract
Description
201242986α 六、發明說明: 【發明所屬之技術領域】 本發明是有關於—種液晶密封劑、使用其的 面板的製造方法以及液晶顯示面板。 項裉 【先前技術】 近年來,作為以行動電話或個人電腦 各種電子設備關賴示,^ 使用液晶顯示面板。液晶顯示面板具有以下構造於, =電極的2片翻基板之叫人液糾料(以下=2 液晶」)’並猎由液晶密封劑將其周圍密封。a ;為 可預片生產[生提阿的液晶顯示面板的製造方法一 液晶滴加方法。液晶滴加方法為以下方法:⑴:有 =上塗佈液晶密封劑而形成框;⑵在月= ::== 二=使液; 硬化的液晶密封劑。例如於上述:先行 :=:等㈣時硬化後,於⑷步驟二::: 性盘㈣劑’已提出了含有兼具紫外線硬化 專似獻2)。含有上述樹脂成分 二常:上述樹脂成分一起而添加紫外線硬=二 劑、及熱硬化用的硬化劑。 元起始 就作業性的觀點而言,液晶密封劑理想的是設定為— 4 201242986 液型。然而,於在一液中含有上述樹脂成分與硬化劑的产 形時’該些成分於保存時反應。因此,提出了將粉^狀= 硬化劑調配於一液型的液晶密封劑中。粉體狀的^化劑與 樹脂組成物以固液的形式反應。即,可抑制保存時的樹脂 組成物與硬化劑的反應’保存穩定性變良好。 曰 先前技術文獻 專利文獻 專利文獻1 :曰本專利特開2001-133794號公報 專利文獻2 :曰本專利特開2〇〇2_214626號公報 對液晶密封劑要求保存穩定性,另一方面,近年來期 ,液晶面板中的密封構件細線化。就使㈣構件細線化的 觀點而言,較佳為液晶密封劑中不含大量的粉體成分。若 大量含有粉舰分,則塗佈時的線寬會受到粉體的粒徑的 影響。另夕卜若含有粉體成分,則黏度容易上升,難以將 液晶密封雜佈成直線狀。因此,難以形成線寬細的密封 構件。 【發明内容】 、本發明疋蔞於上述情況而成,其目的在於提供一種能 =細的線寬絲絲封構件、且保存穩定性亦優異的液晶 密封劑。 如上所述’為了使密封構件細線化,重要的是減少液 曰曰,封劑中的粉體成分量。另—方面,若減少液晶密封劑 =硬化劑里’職脂成分的硬化性下降。另外,亦考慮 到將粉體狀的硬化劑換錢點或軟化點低的硬化劑,但此 201242986 .r 時保存穩定性容易下降。 對此’本發明者等人著眼於硬化劑成分的組合。本發 明者等人發現,若自固態的一級多元胺硬化劑、軟化點為 預定範圍的多元酚硬化劑、及在室溫下為液狀的二級多元 硫醇中選擇至少兩種並將該些化合物組合,則保存穩定性 變良好。另外亦發現,可減少粉體成分量,故塗佈穩定性 變良好。本發明是基於此種發現而成。 本發明的第1發明是有關於一種液晶密封劑。 Π] —種液晶密封劑,含有(1)分子内含有環氧基及 (甲基)丙烯酸基的(甲基)丙烯酸改質環氧樹脂、(2)硬化劑 以及。(3)光起始劑,並且上述成分(2)為選自由軟化點 為50°C〜90。(:的多元酚硬化劑、熔點為23ΐ以下的二級多 元硫醇硬化劑、及熔點為6〇t〜18(rc的一級多元胺硬化 劑所組成的組群中的兩種以上的硬化劑,且相對於上述液 晶密封劑100質量份,含有4質量份〜3〇質量份的上 分(2)。 一 [2]如[丨]所記載的液晶密封劑,其中相對於上述液晶 密封劑100質量份,含有5質量份〜95質量份的上述成分 (1)以及0.01質量份〜5質量份的上述成分(3)。 [3] 如[1]或[2]所記载的液晶密封劑,其中相對於上述 液晶密封劑10〇質量份,更含有1質量份〜50質量份的(曱 基)内烯酸酯單體及/或低聚物。 [4] 如[1]至[3]中任一項所記載的液晶密封劑更含有 分子内具有2個以上的環氧基的環氧樹脂,上述環氧樹脂 6 201242986 為選自由雙酚型環氧樹脂、聯苯型環氧樹脂、聯苯醚型環 氧樹脂以及二苯酚型環氧樹脂所組成的組群中的至少一種 2官能或3官能的環氧樹脂。 _[5]如[1]至[4]中任一項所記載的液晶密封劑,含有藉 由裱球法所測定的軟化點溫度為5〇〇c〜12(rc的熱塑性聚 合物,且更含有數量平均粒徑為〇 〇5 μιη〜5 μιη的熱塑性 聚合物微粒子。 [6] 如[1]至[5]中任一項所記載的液晶密封劑,其中相 對於上述液晶密封劑1〇〇質量份,含有丨質量份〜5〇質量 份的填充劑。 [7] 如Π]至[6]中任一項所記載的液晶密封劑,其中相 對於上述液晶密封劑1〇〇質量份,含有〇1質量份〜5質 里伤的ί衣氧樹脂的硬化觸媒〇 [8] 如[1]至[7]中任一項所記載的液晶密封劑,其是用 於利用液晶滴加方法進行的液晶顯示面板的製造。 本發明的第2發明是有關於一種液晶顯示面板的製造 方法。 [9] 一種液晶顯示面板的製造方法,包含以下步驟: 準備顯不基板及與其成對的對向基板,於一片基板上使用 [1]至[8]中任一項所記載的液晶密封劑形成密封圖案;於上 述密封圖案未硬化的狀態下,於上述基板的密封圖案區域 内、或與上述基板成對的另一基板上滴加液晶;將上述一 片基板與上述另一基板重合;以及使上述密封圖案進行光 硬化後,進行熱硬化。 7 201242986 !·. .1 [10] 如[9]所§己載的液晶顯示面板的製造方法其中上 述形成搶封圖案的步驟為使用上述液晶密封劑不形成輔助 (dummy)圖案而僅形成上述密封圖案的步驟。 本發明的第3發明是有關於—種液晶顯示面板。 [11] -種液晶顯不面板,含有顯示基板、與 基板成對的對向基板、插入至上述顯示基板與上述對向^ ===?=構件、以及填充於上述顯示基板與: 封劑的硬化物。 ur任項所讀的液晶密 [發明的效果] 根據本發明,可提供—種保存穩定性及軸 々、且可形成線寬細的密封圖案的—液液S =. 【實施方式】 的液日日雄、封劑。 1 ·液晶密封劑[Technical Field] The present invention relates to a liquid crystal sealing agent, a method of manufacturing a panel using the same, and a liquid crystal display panel. Item [Prior Art] In recent years, as a mobile phone or a personal computer, you can use a liquid crystal display panel. The liquid crystal display panel has the following structure: a liquid-correcting material (hereinafter = 2 liquid crystal) of two flip-chip substrates of the = electrode and is sealed by a liquid crystal sealing agent. a; for the pre-film production method [manufacturing method of liquid crystal display panel - liquid crystal dropping method. The liquid crystal dropping method is the following method: (1): Yes = coating the liquid crystal sealing agent to form a frame; (2) in the month = ::== two = making liquid; hardened liquid crystal sealing agent. For example, in the above: first: =: etc. (4) After hardening, in (4) Step 2::: Sexual disc (four) agent 'has been proposed to contain both UV curing. 2). The resin component is contained in the above-mentioned resin composition. The above-mentioned resin component is added together with a hardening agent for ultraviolet light=two agents and a heat curing agent. Starting from the viewpoint of workability, the liquid crystal sealing agent is desirably set to - 4 201242986 liquid type. However, when the above resin component and the curing agent are contained in one liquid, the components are reacted at the time of storage. Therefore, it has been proposed to formulate a powder type = hardener in a one-liquid type liquid crystal sealing agent. The powdery chemical is reacted with the resin composition in the form of a solid solution. That is, it is possible to suppress the reaction between the resin composition and the curing agent during storage, and the storage stability is improved.曰 曰 曰 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶The sealing member in the liquid crystal panel is thinned. From the viewpoint of making the (4) member thinner, it is preferred that the liquid crystal sealing agent does not contain a large amount of powder component. If a large amount of powder is included, the line width at the time of coating is affected by the particle size of the powder. When the powder component is contained, the viscosity is liable to rise, and it is difficult to form the liquid crystal sealing material in a straight line. Therefore, it is difficult to form a sealing member having a thin line width. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the invention is to provide a liquid crystal sealing agent which is capable of having a fine line width wire sealing member and excellent storage stability. As described above, in order to thin the sealing member, it is important to reduce the amount of the powder component in the liquid helium and the sealant. On the other hand, if the liquid crystal sealant = hardener is reduced, the hardenability of the occupational fat component is reduced. In addition, it is also considered that the powdery hardener is exchanged for a hardener or a softener having a low softening point, but the storage stability is likely to decrease at 201242986.r. The present inventors focused on the combination of the components of the hardener. The present inventors have found that at least two selected from the group consisting of a solid primary polyamine hardener, a polyphenol hardener having a softening point of a predetermined range, and a secondary polythiol which is liquid at room temperature and When these compounds are combined, the storage stability becomes good. Further, it has been found that the amount of the powder component can be reduced, so that the coating stability becomes good. The present invention is based on such findings. A first invention of the present invention relates to a liquid crystal sealing agent.液晶] A liquid crystal sealing agent containing (1) a (meth)acrylic modified epoxy resin containing an epoxy group and a (meth)acrylic group in the molecule, and (2) a curing agent. (3) A photoinitiator, and the above component (2) is selected from the group consisting of a softening point of 50 ° C to 90 °. (: a polyphenol hardener, a secondary polythiol hardener having a melting point of 23 Å or less, and two or more hardeners in a group consisting of a primary polyamine hardener having a melting point of 6 〇 t 18 (rc) And a liquid crystal sealing agent as described in [2], wherein the liquid crystal sealing agent is the same as the above liquid crystal sealing agent, and the liquid crystal sealing agent is contained in an amount of 4 parts by mass to the above-mentioned liquid crystal sealing agent. 100 parts by mass, containing 5 parts by mass to 95 parts by mass of the above component (1) and 0.01 parts by mass to 5 parts by mass of the above component (3). [3] The liquid crystal sealing film as described in [1] or [2] The agent further contains 1 part by mass to 50 parts by mass of the (fluorenyl) endoate monomer and/or oligomer with respect to 10 parts by mass of the liquid crystal sealing agent. [4] [1] to [ The liquid crystal sealing agent according to any one of the above aspects, further comprising an epoxy resin having two or more epoxy groups in the molecule, wherein the epoxy resin 6 201242986 is selected from the group consisting of bisphenol type epoxy resins and biphenyl type epoxy resins. At least one bifunctional or trifunctional ring of a group consisting of a resin, a diphenyl ether type epoxy resin, and a diphenol type epoxy resin The liquid crystal sealing agent according to any one of [1] to [4], which has a softening point temperature of 5 〇〇 c 12 (rc) measured by a ball method And a liquid crystal sealing agent according to any one of [1] to [5], wherein the liquid crystal sealing agent is sealed with respect to the above liquid crystal. A liquid crystal sealing agent according to any one of the above-mentioned liquid crystal sealing agents, wherein the liquid crystal sealing agent is the same as the above liquid crystal sealing agent. The liquid crystal sealing agent according to any one of [1] to [7], which is used for the liquid crystal sealing agent of any one of [1] to [7]. The liquid crystal display panel manufactured by the liquid crystal dropping method. The second invention of the present invention relates to a method of manufacturing a liquid crystal display panel. [9] A method of manufacturing a liquid crystal display panel, comprising the steps of: preparing a substrate and The liquid crystal according to any one of [1] to [8] is used on a substrate on the opposite substrate. The sealant forms a seal pattern; in a state where the seal pattern is not cured, liquid crystal is dropped on the seal pattern region of the substrate or another substrate paired with the substrate; and the one substrate is overlapped with the other substrate And after the above-mentioned sealing pattern is photocured, it is thermally hardened. 7 201242986 !·. .1 [10] The manufacturing method of the liquid crystal display panel as described in [9], wherein the step of forming the seal pattern is used The liquid crystal sealing agent does not form a dummy pattern and only forms the above-described sealing pattern. The third invention of the present invention relates to a liquid crystal display panel. [11] A liquid crystal display panel comprising: a display substrate, a counter substrate paired with the substrate, inserted into the display substrate and the opposite facing surface, and filled in the display substrate and: a sealing agent Hardened matter. The liquid crystal which is read by the ur item [Effects of the Invention] According to the present invention, it is possible to provide a liquid-liquid S = which is a storage pattern having a storage stability and a shaft enthalpy and which can form a fine line width. Japanese and Japanese, sealant. 1 ·Liquid crystal sealant
及(3)先起始劑。液晶密封劑t /更化W 分子内具有2偏上的環氧村更含有(⑷ 稀_旨單體及/或低聚物 填充劑Μ⑺環氧樹脂的硬简媒k Μ粒子、⑷ (1) (F基)丙烯酸改質環氧樹脂 (甲基)丙稀酸改質環氧樹 將環氧樹脂的環氧⑽(甲基)⑽酸基 魏基改質而成的樹脂即可 8 201242986 獲得 樹脂與(甲基)丙烯酸於例如鹼性觸媒的存在下反應而 的(曱基)丙烯酸改質環氧樹脂。 —’ 产成為原料的環氧樹脂只要為分子内具有2個以上的環 乳基的2官能以上的環氧樹脂即可,例如可列舉:雙紛又 ,又酚F型、2,2’_二烯丙基雙酚A型、雙酚AD型以及 二;型,酚型環氧樹脂;苯酚酚醛清漆型、曱酚酚 、青次型μ Γ本祕清漆型以及三苯騎搭清漆型等紛駿 仏氧祕脂;聯苯型環氧樹脂;萘型環氧樹脂等。 料的環氧樹㈣官能基之數量並無特別限制, 質而=甲Ϊ能的多官能環氧樹脂進行(甲基)丙稀酸改 度高,密氧樹脂的硬化物的交聯密 佳為2官能環降。因此,成為原料的環氧樹脂較 齡型環氧樹脂乳=ζ =為雙紛Α型及雙盼F型等雙 相比較,結晶性與聯苯卿等的環氧樹脂 更低,塗佈穩定性更優異。 基脂的情形時,較佳為以(甲 上的方式利用It 率達到1以上、較佳為2以 低、環氧基的含有%古的,^丁改質。(?基)丙稀酸改質率 易溶解於液晶4玆的(/—基環氧樹脂有容 過高、環氧基的含有^ ® ’(甲基)丙稀酸改質率 有時耐濕性低。ά-、(尹基)丙婦酸改質環氧樹脂 9 201242986 (曱基)丙稀酸改質環氧樹脂的重量平均分子量可為約 300〜約500。(曱基)丙烯酸改質環氧樹脂的重量平均分子 量是藉由凝膠滲透層析儀(Gel Permeation Chromatography,GPC)來測定。 (甲基)丙烯酸改質環氧樹脂於分子内具有環氧基及 (甲基)丙烯酸基,因此含有該(曱基)丙烯酸改質環氧樹脂的 液晶密封劑兼具光硬化性與熱硬化性。 相對於液晶密封劑100質量份,(甲基)丙烯酸改質環 氧樹脂的調配量較佳為設定為5質量份〜95質量份,更佳 為设定為10質量份〜6〇質量份。若低於下限值,則有可 月b#封構件中的樹脂成分少,液晶的密封性變得不充分。 另外,於多於上限值時,有可能其他成分量相對變少,硬 化性變得不充分。 •)分子内具有▲.网从工的環軋丞的環氧樹脂 本發明的液晶密封劑中,視需要亦可含有分子内具有 以土的%祕的環氧樹脂。分子内具有2個以上的環 脂的例子中包括:選自由雙盼型環氧樹脂、 月::=梢、聯苯嗔氧樹脂以及三苯紛型環氧樹 群中的至少一種2官能或3官能的環氧樹 曰=氡樹脂可僅含有—種,亦可含有兩種以上。 述裱氧樹脂較佳為軟化點為4(rc以上、i :液:曰 =怨環氧樹脂於液晶中的溶解性、擴^^性低,所 而^ w的顯補性難好。細,使液晶輯劑硬化 而獲付的密封構件的耐濕性提高。 更化 201242986 上述壤氧樹脂較佳為重量平均分子量 1〇_,較佳為〜5_。其巾較佳為具有上述重量平均 分子量的料鱗倾脂。環氧樹㈣重量平均 - 與上文所述同樣地測定。 芳香族環氧樹脂的例子中包括:藉由雙紛A ,紛_卜雙盼AD等所代表的芳香族二醇類,及對該等芳 類類進行乙二醇、丙二醇、燒二醇改質所得的二醇 =與表氣醇的反應而獲得的芳香族多元縮水甘油峻化人 =,由笨及曱_生所得的祕清漆樹脂; 來烯基苯㈣其共㈣等所代表的聚苯_貞、與表氯 反,而獲得的祕清漆型多元縮水甘㈣化合物;二甲笨 盼樹脂的縮水甘油醚化合物類等。 ^上述芳香族環氧樹脂中,較佳為曱酚酚醛清漆型環氧 樹脂 '笨酚酚醛清漆型環氧樹脂、雙酚A型環氧樹脂、、雙 ^型環氧樹脂、三笨紛曱制環氧樹脂、三苯紛乙^ 環,樹脂 '三苯酚型環氧樹脂、二環戊二烯型環氧樹脂、 匕本醚型環氧樹脂、聯苯型環氧樹脂。該等芳香族環氧樹 月曰可僅含有一種,亦可含有兩種以上。 册相對於液晶密封劑100質量份,分子内具有2個以上 的裱氧基的環氧樹脂的調配量較佳為設定為丨質量份〜3〇 質量份,更佳為設定為3質量份〜20質量份。 (2 )硬化劑 添硬化劑是從由軟化點為5(TC〜90〇C的多元酚硬化 Μ炫點為23 C以下的二級多元硫醇硬化劑、及炫點為 201242986 60°C〜180°C的一級多元胺硬化劑所組成的組群中選擇兩 種以上。 硬化劑的具體組合中包含以下4種:上述多元酚硬化 劑及上述二級多元硫醇硬化劑;上述多元酚硬化劑及上述 一級多元胺硬化劑;上述二級多元硫醇硬化劑及上述一級 多元胺硬化劑;上述多元酚硬化劑、上述二級多元硫醇硬 化劑及上述一級多元胺硬化劑。於液晶密封劑中,亦可於 不損及本發明的效果及目的之範圍内含有該些硬化劑以外 的硬化劑。 上述二級多元硫醇硬化劑在室溫下為液狀,上述多元 紛硬化劑可溶解於液晶密封劑中所含有的其他成分中。因 此,若將上述多元酚硬化劑與上述二級多元硫醇硬化劑組 合,則液晶密封劑中不含粉體的硬化劑,可大幅度地減少 粉體成分的量。另外,該些硬化劑容易均質地溶解於環氧 ,脂中,因此使液晶密封劑硬化而獲得的密封構件表現出 高的黏接強度。 如上所述,上述多元酚硬化劑可溶解於液晶密封劑中 所含有的其他成分中。因此,若將上述多元酚硬化劑與上 述一級多元胺硬化劑組合,則與僅添加一級多元胺硬化劑 的情形相比較,可減少液晶密封劑中的粉體成分量。 另外’上述二級多元硫醇硬化劑亦於室溫下為液狀, 因此右將上述一級多元硫鮮硬化劑與上述一級多元胺硬化 劑組合’則與僅添加上述一級多元胺硬化劑的情形相比 較’可減少粉體成分量。 12 201242986 於將上述一級多元胺硬化劑、上述二級多元硫醇硬化 劑及上述一級多元胺硬化劑組合的情形時,出於上述原 因,可減少液晶密封劑中的粉體成分量。 相對於液晶密封劑100質量份,液晶密封劑中的所有 硬化劑的調配量為4質量份〜30質量份,更佳為5質量份 〜20質量份。若硬化劑的總量超過上限,則有可能黏度穩 疋性下降。另一方面,若硬化劑的總量低於下限,則有時 樹脂的硬化變得不充分,未硬化成分於液晶中溶出等,顯 示品質或黏接強度下降。 以下,對各硬化劑加以說明。 (多元酚硬化劑) 本發明中使用的多元酚硬化劑為一分子中具有2個以 上的芳香族性經基的化合物,其軟化點為〜,較 佳為60°C〜8(TC。若軟化點為該範圍,則於液晶密封劑的 熱硬化時軟化,可有助於(1)(曱基)丙烯酸改質環氧樹脂 或(1-2)分子内具有2個以上的環氧基的環氧樹脂的硬 化。另一方面,若軟化點低於下限,則有可能對液晶密封 劑的黏度穩定性造成影響。另外,於超過上限時,有可能 無法使上述樹脂充分硬化。 —多元酚硬化劑的例子中包括苯酚酚醛清漆樹脂或苯酚 芳烷基樹脂等。所謂苯酚酚醛清漆樹脂,可為使苯酚或曱 酚與福馬林(formalin)縮合而成的縮合物。所謂苯酚芳烷 基祕月曰,疋指使本盼或曱盼與對二甲苯二醇於酸觸媒或驗 性觸媒的存在下縮合而成的縮合物。硬化劑亦可為將上述 13 201242986i • - - 一 -1 縮合物純化而成的物品’亦可為市㈣祕祕清漆樹脂 或苯酚芳烧基樹脂等。該等硬化劑可單獨含有一種,亦可 含有兩種以上。 於過剩含有多元盼硬化劑的情形時,有可能液晶密封 劑的硬化物的黏接強度變得不充分。另外,若硬化劑中的 多元紛硬化劑的比例過多,則有可能妨礙液晶密封劑的光 硬化性。因此’ ?祕硬化_賊量難為根據液晶密 封劑的硬化物的黏接強度、及液晶密封劑的光硬化性而設 定。 (二級多元硫醇硬化劑) 多兀硫醇硬化劑為一分子内具有2個以上的二級硫醇 基的化合物,其熔點為231以下。 上述二級多元硫醇化合物的例子中包括:使具有二級 毓基的酼基羧酸與多元醇進行酯化反應而獲得的酯系硫醇 化合物即巯基酯類;、脂肪族聚硫醇類;、芳香族聚硫醇 類;、硫醇改質反應性矽油類等。該等二級多元硫醇化合 物中,可僅含有一種,亦可含有兩種以上。 二級多元硫醇硬化劑合適的是藉由具有二級毓基的巯 基羧I與夕元醇的酯化反應而獲得的疏基酯類。具有二級 疏基的酼基羧酸的例子中包含2-巯基丙酸、3_硫基丁酸、 2-锍基丁酸等。多元醇的例子中包含乙二醇、丙二醇、14-丁一醇、1,6-己二醇、甘油、三羥曱基丙烷、二-三羥曱基 丙烧、季戍四醇、二季戊四醇、山梨糖醇等。祕_類的 具體例中包含季戊四醇四(3_巯基丁酸酯)等。 14 201242986 若過剩含有二級多元硫醇硬化劑,則有可能液晶密封 劑的保存穩定性變得不充分。因此,二級多元硫醇硬化劑 的調配量較佳為根據液晶密封劑的黏度穩定性而設定。 (一級多元胺硬化劑) 一級多元胺硬化劑為分子内具有2個以上的一級胺基 (-NH2)的化合物,熔點為6(rc〜18(rc,較佳為7〇〇c〜 140 C。級月女基中亦包含肼基(hydrazinyl group)。一級 多元胺硬化劑於液晶密封劑的保存時為固體,通常為粉體 狀。 一級多元胺硬化劑的例子中包含有機酸二醯肼化合 物、胺/脲加合物、二氰二醯胺類、咪唑衍生物、芳香族胺、 環氧改質多胺以及聚胺基脲。該些一級多元胺硬化劑,可 僅含有一種’亦可含有兩種以上。 有機酸二醯肼化合物的例子中包含己二酸二醯肼(炼 點。180C)、1,3-雙(肼基碳乙基)_5•異丙基乙内醯脲(熔點 12〇C )、7,11_十八碳二婦],18_二碳醯耕(熔點16〇{>c )等。 胺/脲加合物的例子中包含作為Fujicure FXR系列而市售 的硬化劑等。 右過剩含有上述一級多元胺硬化劑,則有時液晶密封 劑=黏度上升,塗佈穩定性下降。一級多元胺硬化劑的調 配1較佳為根據液晶密封劑的硬化速度而設定。 广於一級多元胺硬化劑為粉體狀的情形時,其數量平均 ,控較佳為G.1 μιη〜5 μηι,更佳為G 5 μιη〜3 μιη。藉由設 疋為上限值以下,液晶密封劑的塗佈穩定性變良好,能以 15 201242986 ---Γ ' 則:液封構件。另外,若設定為下限值以上, =;Γ:保存時’可抑制-級多元胺硬化齊二 乳均粒徑可利用乾式粒度分布計來確 定 ,後=劑為用以使⑴(甲基)丙稀酸改質環氧樹脂、 ?基)⑽酸s旨單敎/或低聚物等進行光硬 \ 含有光起始劑,則於製造 變容易 液曰曰面板時可藉由光硬化㈣行密封_暫時硬化,作業 光起始劑可為公知物品。光起始劑的例子中包含燒基 苯酮系化合物、氧化膦“合物、二茂鈦系化合物、 ㈣系化含物、安息香系化合物、苯乙酮系化合物、二苯 甲酮系化合物系化合物、α_醯基職系化合物、苯 甲醯甲_旨系化合物、苯_系化合物、偶氮系化合物、 二苯硫鍵系化合物、有機色素系化合物、鐵_酞菁系化合物、 安息香醚系化合物、蒽醌系化合物等。 烧基本嗣系化合物的例子中包含:2,2-二甲氧基-1 2 二苯基乙烷-l-_ (IRGACURE 651)等苯偶醯二曱基縮酮; 2-曱基-2-嗎琳基(4-硫曱基苯基)丙烷_丨_酮(nRGACURE 907 )等α-胺基烷基苯酮;ι_羥基-環己基-笨基-酮 (IRGACURE 184)等α-羥基烷基苯酮等。醯基氧化膦系 化合物的例子中包含2,4,6-三甲基笨甲醯基_二苯基_氧化 膦等。二茂鈦系化合物中包含雙(η5_2,4_環戊二烯_ι_基)_ 雙(2,6-二氟-3_(1^1-令各-1-基)-苯基)鈦等。肟g旨化合物的例 201242986, 子中包含1.2-辛一細-1-[4-(本硫基)-2-(0-苯甲酿基聘)] (IRGACURE OXE 01 )等。 相對於液晶密封劑100質量份,光起始劑的調配量車交 佳為0.01質量份〜5質量份,更佳為0.1質量份〜3質量 份。藉由設定為下限值以上,(1)(曱基)丙稀酸改質環氣 樹脂、或後述的(4)(曱基)丙烯酸g旨單體及/或低聚物等的 硬化性變良好。另外,藉由設定為上限值以下,液晶密封 劑的塗佈時的穩定性變良好。 (4)(曱基)丙烯酸醋單體及/或低聚物 本發明的液晶密封劑中,視需要亦可含有(曱基)丙烯 酸酯單體及/或低聚物。 若液晶密封劑中含有(曱基)丙烯酸酯單體及/或低聚 物,則液晶密封劑的光硬化變良好,液晶面板製造時的作 業性提高。 (曱基)丙烯酸酯單體及/或低聚物的種類只要不損及本 發明的目的及效果,則並無特別限制。(曱基)丙烯酸酿單 體及/或低聚物的例子中包含下述(甲基)丙稀酸醋單體 牛水u一吁、内二醇、革内一哔哥的二内歸酸 酉旨及/或二甲基丙稀動旨;三㈣基乙基)異三聚氰酸_ -丙烯酸自旨及/或二甲基―_;對丨莫耳新戊二醇加成 =莫耳以上的環氧乙燒或環氧秘而獲得的二醇的二丙稀 甲綱酸1旨;對1莫耳雙盼A加成2莫耳的 魏乙錢環氧丙烧而獲得的二醇的二丙烯酸醋及/或二 201242986, 甲基丙烯酸酯;對1莫耳_ 卢备r 耳二經甲基两烧加成3莫耳以上的 =乙烷或①氧峨而购的謂的二 酸醋及/或二甲基丙烯酸鴨或三甲基丙稀酸醋;對= :Α加士:莫耳以上的環氧乙烷或環氧丙烷而的 的二丙細旨及/或二甲基丙_旨;三(2_隸的, 旨及/或三甲基丙稀_旨;三㈣基丙i =丙烯酸S日及/或二甲基丙稀㈣、或其低聚物丨季戍四醇 =丙稀W日及/或:甲基丙騎§旨、或其低聚物;二季戊四 =的聚丙烯酸S旨及/或聚甲基丙稀三(⑽醯氧基乙 基)異三聚氮酸S旨;己内酉旨改質三(丙烯醯氧基乙基)異三聚 二酸酯;,酯改質三(甲基丙烯醯氧基乙基)異三聚氰酸 院基改質二季;^四醇的聚丙烯酸酯及/或聚甲基丙烯酸 己内自旨改質二季細醇的聚丙稀酸g旨及,或聚甲基丙稀 酉^酯,羥基特戊酸新戊二醇二丙烯酸酯及/或二甲基丙烯酸 酉曰,己内酯改質羥基特戊酸新戊二醇二丙烯酸酯及/或二甲 基丙烯酸酯;環氧乙烧改質填酸丙烯酸酯及/或二曱基丙烯 酸酯;環氧乙烷改質烷基化磷酸丙烯酸酯及/或二甲基丙烯 酉欠酯;新戊二醇、三羥甲基丙烷、季戊四醇的低聚丙烯酸 3及/或低聚曱基丙稀酸I旨等。 相對於液晶密封劑100質量份,(甲基)丙烯酸酯單體 及/或低聚物的調配量較佳為設定為1質量份〜50質量 份’更佳為設定為5質量份〜20質量份。 (5)熱塑性聚合物微粒子 本發明的液晶密封劑中,視需要含有藉由環球法所測 201242986 定的軟化點溫度為耽〜12(rc、較佳為7叱〜刚。c的熱 塑性聚合物,且亦可含有數量平均粒徑為α〇5 μπι〜5 μιη,、、 較佳為0.1 μιη〜3 μιη的熱塑性聚合物微粒子。 密封劑中含有_性聚合物微粒子,可緩和^密封劑= ,化物巾產生的收縮應力。料,藉由將數量平均粒徑設 定為上限值以下,可於形成線寬細的密封構件時,防止由 熱塑性聚合物微粒子導致塗佈穩定性下降。數量平均粒徑 的測定方法與上文所述的方法相同。 熱塑性聚合物微粒子的例子中包含:使含有環氧基及 雙鍵,的樹脂、與可進行自由基聚合的單體進行懸浮&合 2獲得的微粒子。含有環氧基及雙鍵基的樹脂的例子中包 έ使雙盼F型環氧樹脂與甲基丙稀酸於三級胺的存在下 反應戶^得的樹脂。可進行自由基聚合的單體的例子中包含 丙烯馱丁酯、甲基丙烯酸縮水甘油酯、及二乙烯基苯。 =相對於液晶密封劑1〇〇質量份,熱塑性聚合物微粒子 的1配量較佳為5質量份〜40質量份,更佳為7質量份〜 30質1份。藉由設定為此種範圍,熱塑性聚合物微粒子可 緩和液晶密封劑的加熱硬化時的收縮應力,能以目標線寬 來形成密封構件。 (6)填充劑 本發明的液晶密封劑中亦可更含有填充劑。利用填充 劑丄可抑制液晶密封劑的黏度、使液晶密封劑硬化而獲得 的構件的強度、及線膨脹性等。 填充劑並無特別限制,其例子中包含碳酸鈣、碳酸鎂、 201242986, 硫酸鋇、硫酸鎮、㈣铭、魏錯、氧化鐵、氧化欽、氧 化鋁(alumina)、氧化鋅、二氧化矽、鈦酸鉀、高嶺土、 滑石、玻璃珠、_雲母活性白土、黏土、氮化紹、氮 等無機填充劑。較佳為二氧化矽、滑石。 *填充劑的形狀並無特別限定,可為球狀、板狀、針狀 等固定形狀或定形狀的任-種。填細較佳為平均一 ·欠 粒严為1.5 μιη以下,且較佳為其比表面職〇 5以〜扣 m/g。填充劑的平均一次粒徑可利用瓜挪况所記 雷射繞射絲载。另外,比表面_定可湘瓜挪如 二。己載的布厄特(Brunauei· Emmett Teller,BET)法來測 相對於液晶密封齊U00質量份,填充劑的填充量㈣ ^質量份〜50質量份,更佳為1()質量份〜3()質量份; =超過上限’則可能液晶密封劑中的紐成分量變多, 生塗佈穩定性的下降。 』 (7)壤氧樹脂的硬化觸媒 硬化ΐΓϊ液晶密封财,視g要亦可含有環氧樹㈣ 使液,ΐ: 封财含有環氧樹脂的硬化觸媒,貝· ϋ曰日讀劑硬化而獲得的密封構件的硬化性變良好,_ 封構件的黏接強度亦提高。 在 環氧樹脂的硬化觸媒只要不損及本發明的 及其力 別限制,例如购 相對於液晶密纏質量份,魏«的調配量較 20 201242986 佳為O’l質里h〜5質量份,更佳為Q 5質量份〜3質量份。 (8) 其他添加劑 本發明的液晶密封劑中,視需要亦可更含有熱自由基 聚合起始劑、魏偶合鮮偶合劑、離子捕捉劑、離子交 換劑、勻化劑、顏料、染料、塑化劑、消泡劑等添加劑。 另外’為了調整液晶面板的間隙(gap),亦可調配間隔件 (spacer)等。 本發明的液晶密封劑含有⑴(甲基)丙烯酸改質環氧 樹脂、、⑵硬化劑以及⑴光起始劑,因此可較佳地用於 大夕併用光硬化與熱硬化的液晶滴加方法用的液晶密封 劑。液晶滴加方法用的液晶密封劑較佳為更含有(1_2)分 子内具有2個以上的環氧基的環氧樹脂及⑷(甲基)丙稀 酸醋單體及/或低聚物,更佳為更含有⑸熱塑性聚合物 微粒子及(6)填充劑。 本發明的液晶密封劑的由E型黏度計所得的25。匸、2 5 卬m的條件下的黏度較佳為3〇 pa.s〜4〇〇 pa,s,更佳為5〇And (3) the first initiator. The liquid crystal encapsulant t / more W in the molecule has two upper epoxy groups containing ((4) thin monomer and / or oligomer filler Μ (7) epoxy resin hard dielectric k Μ particles, (4) (1 (F-based) acrylic modified epoxy resin (methyl) acrylic acid modified epoxy resin epoxy resin epoxy (10) (methyl) (10) acid-based Wei base modified resin can be 8 201242986 A (mercapto)acrylic modified epoxy resin obtained by reacting a resin with (meth)acrylic acid in the presence of, for example, a basic catalyst is obtained. The epoxy resin produced as a raw material has two or more rings in the molecule. The emulsion-based bifunctional or higher epoxy resin may be, for example, a mixture of bisphenol and phenol F, 2,2'-diallyl bisphenol A, bisphenol AD and phenanthrene, and phenol. Epoxy resin; phenol novolak type, indophenol phenol, blue sub-type Γ 秘 秘 秘 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 以及 ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; The amount of the epoxy tree (4) functional group of the material is not particularly limited, and the polyfunctional epoxy resin of the type of methacrylic acid is highly modified by (meth)acrylic acid. The cross-linking of the cured product of the dense epoxy resin is preferably a bifunctional ring drop. Therefore, the epoxy resin which is a raw material is compared with the epoxy resin of the age-type epoxy resin = ζ = double phase and double F-type. The crystallinity is lower than that of an epoxy resin such as biphenyl phthalate, and the coating stability is more excellent. In the case of a base grease, it is preferred to use an It ratio of 1 or more, preferably 2 or less. The epoxy group contains an ancient %, and the modified acid is easily dissolved in the liquid crystal 4 (/-based epoxy resin is too high, the epoxy group contains ^ ® '(Methyl)acrylic acid modification rate is sometimes low in moisture resistance. ά-, (Yinji) propylene fosic acid modified epoxy resin 9 201242986 (fluorenyl) acrylic acid modified epoxy resin weight average The molecular weight may be from about 300 to about 500. The weight average molecular weight of the (fluorenyl) acrylic acid modified epoxy resin is determined by Gel Permeation Chromatography (GPC). (Meth)acrylic acid modified ring The oxygen resin has an epoxy group and a (meth)acrylic group in the molecule, and thus contains a liquid crystal dense of the (mercapto)acrylic modified epoxy resin. The amount of the (meth)acrylic modified epoxy resin is preferably set to 5 parts by mass to 95 parts by mass, more preferably set to 100 parts by mass of the liquid crystal sealing agent. When the amount is less than the lower limit, the resin component in the month b# sealing member is small, and the sealing property of the liquid crystal is insufficient. There is a possibility that the amount of other components is relatively small, and the hardenability is insufficient. • The epoxy resin having a ring-shaped enthalpy in the molecule is included in the liquid crystal sealing agent of the present invention, and may have an intramolecular content as needed. Epoxy resin with a % of soil. Examples of two or more cycloaliphatic molecules in the molecule include: selected from the group consisting of double-presence epoxy resin, month::=tip, biphenyl fluorene oxide resin, and triphenyl sulfonate ring At least one of the bifunctional or trifunctional epoxy resin oxime resins in the oxygen tree group may be contained alone or in combination of two or more. Preferably, the oxime resin has a softening point of 4 (rc or more, i: liquid: 曰 = blame epoxy resin solubility in liquid crystal, low expansion, and the replenishment of ^ w is difficult. The moisture resistance of the sealing member obtained by hardening the liquid crystal sizing agent is improved. Further, 201242986, the above-mentioned lyoreoxy resin preferably has a weight average molecular weight of 1 〇 _, preferably 〜5 。. The towel preferably has the above weight average. The molecular weight of the scale is decanted. Epoxy tree (4) Weight average - measured in the same manner as described above. Examples of the aromatic epoxy resin include: aroma represented by a double A, a sb Alkanediols, and diols obtained by modifying ethylene glycol, propylene glycol, and glycerol with such aryls = aromatic polyglycidol obtained by reaction with surface gas alcohols And 曱 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ A glycidyl ether compound or the like. ^ Among the above aromatic epoxy resins, a nonylphenol novolak type ring is preferred. Resin 'mold phenol novolak type epoxy resin, bisphenol A type epoxy resin, double type epoxy resin, three stupid epoxy resin, triphenyl sulfonate ring, resin 'trisphenol type epoxy Resin, dicyclopentadiene type epoxy resin, oxime ether type epoxy resin, biphenyl type epoxy resin. These aromatic epoxy tree candies may contain only one type or two or more types. The amount of the epoxy resin having two or more decyloxy groups in the molecule is preferably set to 丨 part by mass to 3 〇 parts by mass, more preferably set to 3 parts by mass to 20 parts by mass per 100 parts by mass of the liquid crystal sealing agent. (2) Hardener Additive Hardener is a secondary polythiol hardener with a softening point of 5 (TC~90〇C polyphenol hardening point of 23 C or less, and a bright point of 201242986 60°) Two or more selected from the group consisting of a primary polyamine curing agent having a C to 180 ° C. The specific combination of the curing agent includes the following four types: the above polyhydric phenol curing agent and the above secondary polythiol curing agent; Phenolic curing agent and the above-mentioned primary polyamine curing agent; the above secondary polythiol hardener and The first-stage polyamine curing agent; the above polyhydric phenol curing agent, the above-mentioned secondary polythiol curing agent, and the above-mentioned primary polyamine curing agent. In the liquid crystal sealing agent, it is also possible to avoid the effects and objects of the present invention. The curing agent other than the curing agent is contained. The secondary polythiol curing agent is liquid at room temperature, and the plurality of hardening agents are soluble in other components contained in the liquid crystal sealing agent. When the polyhydric phenol curing agent is combined with the above-mentioned secondary polythiol curing agent, the liquid crystal sealing agent does not contain a powder hardening agent, and the amount of the powder component can be greatly reduced. Further, the curing agents are easily dissolved homogeneously. In the epoxy or the fat, the sealing member obtained by curing the liquid crystal sealing agent exhibits high adhesive strength. As described above, the polyhydric phenol curing agent can be dissolved in other components contained in the liquid crystal sealing agent. Therefore, when the above polyhydric phenol curing agent is combined with the above-mentioned primary polyamine curing agent, the amount of the powder component in the liquid crystal sealing agent can be reduced as compared with the case where only the primary polyamine curing agent is added. In addition, the above-mentioned secondary polythiol hardener is also liquid at room temperature, so the combination of the above-mentioned primary multi-sulfur fresh hardener with the above-mentioned primary polyamine hardener is added to the case where only the above-mentioned primary polyamine hardener is added. Compared with 'can reduce the amount of powder components. 12 201242986 In the case where the above-mentioned primary polyamine curing agent, the above secondary polythiol curing agent, and the above primary polyamine curing agent are combined, the amount of the powder component in the liquid crystal sealing agent can be reduced for the above reasons. The amount of all the hardeners in the liquid crystal sealing agent is from 4 parts by mass to 30 parts by mass, more preferably from 5 parts by mass to 20 parts by mass, per 100 parts by mass of the liquid crystal sealing agent. If the total amount of the hardener exceeds the upper limit, there is a possibility that the viscosity stability is lowered. On the other hand, when the total amount of the curing agent is less than the lower limit, the curing of the resin may be insufficient, and the uncured component may be eluted in the liquid crystal or the like, indicating deterioration in quality or adhesive strength. Hereinafter, each curing agent will be described. (Polyphenol Curing Agent) The polyhydric phenol curing agent used in the present invention is a compound having two or more aromatic mercapto groups in one molecule, and has a softening point of 〜, preferably 60 ° C to 8 (TC. When the softening point is in this range, it softens when the liquid crystal sealing agent is thermally cured, and it can contribute to (1) (fluorenyl) acrylic acid-modified epoxy resin or (1-2) having two or more epoxy groups in the molecule. On the other hand, if the softening point is lower than the lower limit, the viscosity stability of the liquid crystal sealing agent may be affected. Further, when the upper limit is exceeded, the above resin may not be sufficiently hardened. Examples of the phenol curing agent include a phenol novolak resin or a phenol aralkyl resin, etc. The phenol novolak resin may be a condensate obtained by condensing phenol or indophenol with formalin.秘曰,曰 refers to the condensate of hope or expectation with p-xylene glycol in the presence of acid catalyst or an organic catalyst. The hardener can also be the above 13 201242986i • - - one - 1 condensate purified articles It may also be a city (4) secret varnish resin or a phenol aryl-based resin, etc. These hardeners may be contained alone or in combination of two or more. In the case where the excess contains a plurality of hardening agents, there may be a liquid crystal sealant. The adhesive strength of the cured product is insufficient. Further, if the ratio of the plurality of hardeners in the hardener is too large, the photocurability of the liquid crystal sealant may be hindered. Therefore, it is difficult to determine the amount of the hardener according to the liquid crystal seal. The adhesive strength of the cured product of the agent and the photocuring property of the liquid crystal sealing agent are set. (Secondary polythiol hardener) The polythiol hardener is a secondary thiol group having two or more secondary thiol groups in one molecule. The compound has a melting point of 231 or less. Examples of the above-mentioned secondary polythiol compound include an ester thiol compound obtained by esterification reaction of a mercaptocarboxylic acid having a secondary mercapto group with a polyhydric alcohol, that is, a mercaptoester. ; an aliphatic polythiol; an aromatic polythiol; a thiol-modified reactive eucalyptus, etc. The secondary polythiol compound may be contained alone or in combination of two or more.The second-order polythiol hardener is suitably a sulfhydryl ester obtained by esterification of a mercaptocarboxyl group having a secondary mercapto group with a fulcic alcohol. In the example of a mercaptocarboxylic acid having a secondary sparing group Containing 2-mercaptopropionic acid, 3-thiobutyric acid, 2-mercaptobutyric acid, etc. Examples of the polyhydric alcohol include ethylene glycol, propylene glycol, 14-butanol, 1,6-hexanediol, glycerin, Trihydroxydecylpropane, di-trihydroxydecylpropanoid, quaternary tetraol, dipentaerythritol, sorbitol, etc. Specific examples of the secret class include pentaerythritol tetrakis(3-mercaptobutyrate), etc. 14 201242986 If the secondary polythiol hardener is excessively contained, the storage stability of the liquid crystal sealing agent may be insufficient. Therefore, the amount of the secondary polythiol hardener is preferably adjusted according to the viscosity stability of the liquid crystal sealing agent. (Primary polyamine hardener) The primary polyamine hardener is a compound having two or more primary amine groups (-NH2) in the molecule, and has a melting point of 6 (rc~18 (rc, preferably 7〇〇c~). 140 C. The hydrazinyl group is also included in the monthly female base. The primary polyamine hardener is solid when stored in a liquid crystal encapsulant, usually in the form of a powder. Examples of the primary polyamine hardener include organic acid di-quinone compounds, amine/urea adducts, dicyanodiamides, imidazole derivatives, aromatic amines, epoxy modified polyamines, and polyaminoureas. These primary polyamine hardeners may contain only one type and may contain two or more types. Examples of the organic acid diterpene compound include diammonium adipate (refining point. 180C), 1,3-bis(decylcarboethyl)_5. isopropylethyl carbazide (melting point 12〇C) 7,11_18 carbon two women], 18_ two carbon ploughing (melting point 16 〇{>c) and so on. Examples of the amine/urea adduct include a curing agent or the like which is commercially available as the Fujicure FXR series. When the above-mentioned primary polyamine curing agent is contained in the right excess, the liquid crystal sealing agent may have an increased viscosity and a decrease in coating stability. The formulation 1 of the primary polyamine hardener is preferably set in accordance with the curing rate of the liquid crystal sealing agent. When the first-stage polyamine hardener is in the form of a powder, the number thereof is preferably from G.1 μm to 5 μm, more preferably G 5 μm to 3 μm. By setting the enthalpy to the upper limit or less, the coating stability of the liquid crystal sealing agent is improved, and it is possible to use 15 201242986 --- Γ ': liquid sealing member. In addition, if it is set to the lower limit or more, =; Γ: during storage, the inhibitable-grade polyamine hardened two-milk average particle size can be determined by a dry particle size distribution meter, and the latter agent is used to make (1) (methyl) Acrylic acid modified epoxy resin, base) (10) acid s intended to be light hard / containing photoinitiator, which can be hardened by light hardening when manufacturing a liquid lique panel (4) Row Sealing_ Temporary hardening, the working light initiator can be a known article. Examples of the photoinitiator include a benzophenone compound, a phosphine oxide compound, a titanocene compound, a (four) systemic content, a benzoin compound, an acetophenone compound, and a benzophenone compound. a compound, an α-fluorenyl-based compound, a benzamidine-based compound, a benzene-based compound, an azo compound, a diphenyl sulfide-based compound, an organic dye-based compound, an iron-phthalocyanine-based compound, a benzoin ether a compound, an oxime compound, etc. Examples of the basic lanthanide compound include: 2,2-dimethoxy-1 2 diphenylethane-l-_ (IRGACURE 651), etc. a ketal; an a-aminoalkyl benzophenone such as 2-mercapto-2-morphinyl (4-thiononylphenyl)propane ketone ketone (nRGACURE 907 ); iota-hydroxy-cyclohexyl-phenyl - α-hydroxyalkyl benzophenone such as ketone (IRGACURE 184), etc. Examples of the fluorenyl phosphine oxide-based compound include 2,4,6-trimethyl benzomethyl hydrazino-diphenyl phosphine oxide. The titanium compound contains bis(η5_2,4-cyclopentadienyl)-bis(2,6-difluoro-3_(1^1-decyl-1-yl)-phenyl)titanium or the like. Example of 旨g-specific compound 201242986, child Contains 1.2-octyl-1-[4-(this thio)-2-(0-benzamide)] (IRGACURE OXE 01), etc. Light start with respect to 100 parts by mass of liquid crystal sealant The blending amount of the agent is preferably 0.01 parts by mass to 5 parts by mass, more preferably 0.1 parts by mass to 3 parts by mass. By setting the lower limit value or more, (1) (fluorenyl) acrylic acid modified ring gas The curability of the resin or the (4) (fluorenyl) acrylate-based monomer and/or oligomer described later is improved, and the liquid crystal sealing agent is stabilized at the time of application by setting it to the upper limit or less. (4) (Mercapto) Acrylic Acid Acetate Monomer and/or Oligomer The liquid crystal sealing agent of the present invention may optionally contain a (fluorenyl) acrylate monomer and/or oligomer. When the liquid crystal sealing agent contains a (fluorenyl) acrylate monomer and/or an oligomer, the liquid crystal sealing agent is light-cured, and the workability in the production of the liquid crystal panel is improved. (Mercapto) acrylate monomer and/or The type of the oligomer is not particularly limited as long as the object and effect of the present invention are not impaired. Examples of the (fluorenyl) acrylic monomer and/or oligomer include (Methyl) acrylic acid vinegar monomer Niu Shui u Yi, internal diol, Ge Yi Yi Ge's second internal acid and / or dimethyl propyl amide; tris (tetra) ethyl) Cyanuric acid _-acrylic acid and / or dimethyl _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ A succinic acid 1; a methacrylic acid diacrylate acrylate and/or two 201242986, a methacrylate obtained by adding 1 mole of double A to 2 moles of Wei Yi Qiang propylene propylene; _ Lubei r aurantia acid and/or dimethacrylate duck or trimethyl acrylate vinegar purchased by methyl two-burning addition of 3 moles or more = ethane or 1 oxonium; For =: Α 士士: propylene oxide or propylene oxide above the molar content of propylene and / or dimethyl propyl _ _; three (2 _,, and / or trimethyl Propylene _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Or an oligomer thereof; dipentaerythritol = polyacrylic acid S and/or polymethyl propylene tris((10) decyloxyethyl) heterotrimer Acid S is intended to be modified by tris(propylene oxyethyl) isotrimer diester; ester modified tris(methacryloxyethyl) iso-cyanate The second season; the polyacrylic acid ester of tetrahydric alcohol and/or polymethacrylic acid, the polyacrylic acid g of the modified diquaternary alcohol, or the polymethyl propylene phthalate, hydroxypivalic acid neopentyl Alcohol diacrylate and/or bismuth dimethacrylate, caprolactone modified hydroxypivalic acid neopentyl glycol diacrylate and/or dimethacrylate; epoxy ethene modified acid acrylate and / or dimercapto acrylate; ethylene oxide modified alkylated phosphoric acid acrylate and / or dimethyl propylene oxime ester; neopentyl glycol, trimethylolpropane, pentaerythritol oligomeric acrylic acid 3 and / Or oligomeric mercapto acrylate I. The amount of the (meth) acrylate monomer and/or oligomer is preferably set to 1 part by mass to 50 parts by mass with respect to 100 parts by mass of the liquid crystal sealing agent. More preferably, it is set to 5 parts by mass to 20 mass%. Share. (5) Thermoplastic polymer fine particles In the liquid crystal sealing agent of the present invention, if necessary, a thermoplastic polymer having a softening point temperature of 耽 12 (r, preferably 7 叱 to 刚·c) determined by the ring and ball test of 201242986 is contained. Further, the thermoplastic polymer microparticles having a number average particle diameter of α 〇 5 μπι 5 μιη, and preferably 0.1 μηη to 3 μηη may be contained. The sealant contains _ polymer microparticles, which can be moderated and sealed. By setting the number average particle diameter to the upper limit or less, it is possible to prevent the coating stability from being lowered by the thermoplastic polymer fine particles when forming the sealing member having a small line width. The method of measuring the particle diameter is the same as the method described above. Examples of the thermoplastic polymer microparticles include: suspending & combining a resin containing an epoxy group and a double bond with a monomer capable of radical polymerization. The obtained fine particles. In the example of the resin containing an epoxy group and a double bond group, a resin obtained by reacting a double-preferred F-type epoxy resin with methyl acrylic acid in the presence of a tertiary amine can be carried out. Examples of the monomer-polymerized monomer include butyl butyl acrylate, glycidyl methacrylate, and divinyl benzene. = 1 part by mass of the thermoplastic polymer microparticles is preferably 1 part by mass based on the liquid crystal sealing agent. 5 parts by mass to 40 parts by mass, more preferably 7 parts by mass to 30 parts by mass. By setting it as such a range, the thermoplastic polymer fine particles can alleviate the shrinkage stress at the time of heat curing of the liquid crystal sealing agent, and can have a target line width. (6) Filler The liquid crystal sealing agent of the present invention may further contain a filler. The filler may be used to suppress the viscosity of the liquid crystal sealing agent, the strength of the member obtained by curing the liquid crystal sealing agent, and the line. Expandability, etc. The filler is not particularly limited, and examples thereof include calcium carbonate, magnesium carbonate, 201242986, barium sulfate, sulfuric acid town, (four) Ming, Wei wrong, iron oxide, oxidized chin, alumina, zinc oxide, Inorganic fillers such as cerium oxide, potassium titanate, kaolin, talc, glass beads, ymite activated clay, clay, nitriding, nitrogen, etc., preferably cerium oxide, talc. * Shape of filler In particular, it may be any of a fixed shape or a fixed shape such as a spherical shape, a plate shape, or a needle shape. The filling is preferably an average of less than 1.5 μmη, and preferably a surface occupation ratio of 5 With ~ buckle m / g. The average primary particle size of the filler can be used to record the laser diffraction of the melon. In addition, the specific surface _ can be Xiangguai like two. Bhuert (Brunauei· Emmett Teller, BET) method to measure U00 parts by mass relative to the liquid crystal sealing, filling amount of the filler (four) ^ parts by mass to 50 parts by mass, more preferably 1 () parts by mass to 3 parts by mass; = exceeding the upper limit' In this case, the amount of the component in the liquid crystal sealing agent may be increased, and the coating stability may be lowered. 』 (7) The hardening catalyst of the oxy-resin is hardened, the liquid crystal is sealed, and the epoxy resin may be contained in the liquid crystal. ΐ: The hardening catalyst containing epoxy resin is sealed, and the hardening property of the sealing member obtained by hardening the shell and the aging agent becomes good, and the bonding strength of the sealing member is also improved. As long as the curing catalyst of the epoxy resin does not impair the limitations of the present invention and its strength, for example, the mass fraction of the liquid crystal is relatively better than that of the 20 201242986, which is preferably O'l quality. More preferably, it is Q 5 parts by mass to 3 parts by mass. (8) Other Additives In the liquid crystal sealing agent of the present invention, if necessary, it may further contain a thermal radical polymerization initiator, a Wei coupling fresh coupling agent, an ion trapping agent, an ion exchanger, a leveling agent, a pigment, a dye, and a plastic. Additives such as chemicals and defoamers. Further, in order to adjust the gap of the liquid crystal panel, a spacer or the like may be disposed. The liquid crystal sealing agent of the present invention contains (1) a (meth)acrylic modified epoxy resin, (2) a hardener, and (1) a photoinitiator, and thus can be preferably used in a liquid crystal dropping method for photohardening and thermosetting. Liquid crystal sealant used. The liquid crystal sealing agent for liquid crystal dropping method preferably further contains (1_2) an epoxy resin having two or more epoxy groups in the molecule, and (4) a (meth)acrylic acid vinegar monomer and/or oligomer. More preferably, it further contains (5) thermoplastic polymer microparticles and (6) a filler. 25 of the liquid crystal sealing agent of the present invention obtained by an E-type viscosity meter. The viscosity under the condition of 匸, 2 5 卬m is preferably 3〇 pa.s~4〇〇 pa, s, more preferably 5〇.
Pa.s〜350 Pa.s。黏度在上述範圍内的液晶密封劑的塗佈 定性優異。 (9) 液晶密封劑的製造方法 本發明的液晶欲封劑是將(1 )分子内含有環氧基及(甲 基)丙烯酸基的(曱基)丙烯酸改質環氧樹脂、(2)硬化劑、 (3 )光起始劑以及視需要的其他成分均勻混合而製造。均 勻混合的方法並無特別限制,例如較佳為使用三親混合機 充分混練。又,此時,較佳為充分脫泡以使液晶密封^中 21 201242986 不含氣泡。 2 ·液晶顯示面板的製造方法 本I明的液晶顯示面板含有顯示基板、與其成對的對 向土板插入至顯示基板與對向基板之間的框狀的密封構 件、2及填充於顯示基板與對向基板之間的由密封構件包 圍的工間中的液晶層。可使本發明的液晶密封劑的硬化物 成為密封構件。 、顯示基板及對向基板均為透明基板。透明基板的材質 並^特別限制,例如可列舉玻璃、或聚碳酸醋、聚對苯二 甲酉夂乙_s旨、聚,風及聚甲基丙烯酸甲酯(啊⑽邮 Methacrylate,pMMA )等塑膠。 於顯示基板或對向基板的表面’可配置有矩陣狀的薄 ,電晶體(Thin Film Transistor,TFT)、彩色遽光片、黑 =矩陣等。於顯示基板或對向基板的表面,更形成有配向 、配向膜中含有公知的有機配向劑或無機配向劑等。 人利用液晶滴加方法進行的液晶顯示面板的製造方法包 3 · 第 劑的密封難;、㈣社械本發_液晶密封 美2步驟’於密封難未硬化的狀態下,於上述 圖案包圍的區域、或與該由密封圖案包圍的 〔域相對向的另-基板的區域中滴加液晶; 而重=);2步驟’使—片基板與另—基板介隔密封圖案 22 201242986t a4)第4步驟,使密封圖案硬化。 所謂a2)步驟中的密封圖案未硬化的狀態,是指液晶 後封劑的硬化反應進行至膠化點之前的狀態 0因此,a2 ) 步驟中’為了抑制液晶密封劑於液晶中的溶解,亦可對密 封圖案進行光照射或加熱而使其半硬化。一片基板及另一 基板分別為顯示基板或對向基板。 —本發明的液晶密封劑由於硬化劑中的粉體量少’故可 貫現密封圖案的細線化。使用本發明的液晶密封劑的密封 圖案的截面積可為15〇〇 μιη2〜3〇〇〇 μηι2左右。 a4)步驟中,亦可僅進行利用加熱的硬化,較佳為進 行利用光照射的硬化(暫時硬化)後,進行利用加熱的硬 化(正式硬化)。藉由利用光照射的暫時硬化使液晶密封劑 瞬間硬化’藉此可抑制各成分溶解於液晶中。 光硬化時間亦取決於液晶密封劑的組成,例如為1 〇 t鐘左右。光照射能量只要為可使(1)(甲基)丙烯酸改質 環氧樹脂或(4)(曱基)丙烯酸酯單體及/或低聚物等硬化的 程度的能量即可。光較佳為紫外線。熱硬化溫度亦取決於 液晶密封劑的組成,例如為Hot,熱硬化時間為2小時 左右。 此處’於糟由液晶滴加方法來製造液晶顯示面板的情 形時’大多情況下a3)步驟是在減壓狀態下進行,a4)步 驟是開放到大氣壓下後進行。具體而言,於a3)步驟中將 2片基板重合後,使該液晶顯示面板回到大氣壓下。此時, 由2片基板及液晶密封劑包圍的區域被密封,保持減壓狀 23 201242986 4 1 態。因此’於由液晶密封劑包圍的區域中,力在基板彼此 相互接近的方向上作用於2片基板。另一方面,液晶密封 劑的框外由於開放到大氣壓下,故力並未在基板彼此接近 的方向上作用於2片基板。因此,有基板翹曲,間隙自液 晶顯示面板的中心部朝向液晶密封劑的框外方向變寬的問 題。若於液晶顯示面板内間隙產生不均,則顯示可靠性下 降。 為了解決此種問題’先前通常使用在液晶密封劑的框 (主密封)的外側更設置其他框(輔助密封)的方法(例 如參照日本專利特開2002-328382號公報)。根據該方法, 主密封的框外、即主密封與輔助密封之間的區域亦成為減 壓狀態。藉此,於主密封的外側,力亦於基板彼此接近的 方向上作用於2片基板,可抑制基板翹曲。因此,根據該 方法’可使液晶顯示面板内的間隙均勻。 而且,為了提尚液晶顯示面板的製造效率,理想的是 不形成輔助密封。因此,作為不形成輔助密封而使2片基 $間隙均勻的方法,例如想到了使液晶密封劑的柔軟性 向。液晶填充後,將液晶顯示面板開放到大氣壓下時, =隨著主㈣的_的基板的移動(朝向基板彼此接近 I向的雜)而液晶㈣舰發生變形,射抑制基板 纪曲’無需形成輔助密封。 =而,對於先前的液晶密封劑而言,液晶密封劑中大 ^有粉縣分’液晶㈣劑硬,_進行如上所述的變 >。另-方面’本發明的液晶密封劑的粉體成分的含有量 24 20124298么 少,液晶密封劑的柔軟性高。因此,可不形成辅助密封圖 案而僅形成密封液晶所必需的密封圖案,製造液晶顯示面 板。 再者’本發明的液晶密封劑不僅可用於上述利用液晶 滴加方法的液晶表面板的製造方法,亦可用於利用液晶注 入方法的液晶顯示面板的製造方法。 利用液晶注入方法的液晶顯示面板的製造方法包含: M)第1步驟,在一片基板上形成本發明的液晶密封 劑的密封圖案; b2)第2步驟,將一片基板與另一基板介隔密封圖案 而重合; ' b3)第3步驟,使密封圖案熱硬化,獲得具有用以注 入液晶的注入口的液晶注入用單元; b4)第4步驟,經由注入口將液晶注入至液晶注入用 單元中;以及 b5 )第5步驟,將注入口密封。 於M)步驟〜b3)步驟中,準備液晶注入用單元。首 先,準備2片透明基板(例如玻璃板)。繼而,於一片基板 ^利用液晶密封劑形成密封圖案。於基板的形成有密^圖 -、的面上重合另—基板後,使密封圖案硬化即可。此時, 必須於液晶注入用單元的一部分中設置用以注入液晶的注 入口,注入口只要在描晝密封圖案時於一部分設置開口部 即可。另外,亦可於形成密封圖案後,將所需部位的 圖案去除而設置注入口。 、 25 2012429861 b3)步驟中的熱硬化條件亦取決於液 成’例如為150。(:下2小時〜5小時左右。 ^的,、且 b4)步驟只要健以下的公知方法來進行即 步驟〜b3)步驟中獲得的液晶注人用單元的内 * 狀態’自液晶注入用單元的注入口吸入液晶。b 5 驟二 亦可將液晶密封劑封人至液晶注人用單元的注入^盆 硬化。 傻使其 本發明的液晶密封劑的塗佈性良好,能以細 來形成密封構件。另外,黏接強度亦良好,進而保時 黏度穩定性亦優異。 ' —另外’藉由使用本發明的液晶密封劑,可不形成輔助 密封圖案而僅形成密封液晶所必需的密封圖案,獲得基板 間的間隙穩定性優異的液晶顯示面板。 土 實例 [合成例1] 甲基丙烯酸改質雙酚F型環氧樹脂的合成(7〇%部分 曱基丙烯酸化物) 將160 g的液狀雙酚F型環氧樹脂(Ep〇t〇ht〇 YDF-8170C,東都化成公司製造,環氧當量l6〇g/eq)、作 為聚合抑制劑的0.1 g的對甲氧基苯酚、作為觸媒的〇 2 g 的三^醇胺、及70.0 g的甲基丙烯酸添加至燒瓶内,一面 ,入乾燥空氣並於90°C下回流攪拌一面反應5小時。以超 純水將所得的化合物清洗2〇次,獲得甲基丙烯酸改質雙酚 F型環氧樹脂。 26 201242986^ 此處,成為原料的雙酚F型環氧樹脂所含的環氧基之 數量為1莫耳。進行反應的曱基丙烯酸所含的曱基丙烯酸 基之數里為〇.7〇莫耳。因此,所得的曱基丙烯酸改質雙酚 F型環氧樹脂為70%部分曱基丙烯酸化物。 [實例1] 使用二輥混合機,將包含合成例1中獲得的曱基丙烯 酸改質雙酚F型環氧樹脂(7〇〇/0部分曱基丙烯酸化物)5〇 質量份、多元酚硬化劑A (三井化學公司製造:Milex 3L, 軟化點71 C ) 4質量份、二級多元硫醇硬化劑B (昭和電 工公司製造·ΡΕ·1 )8質量份、一級多元胺硬化劑D( adeka 公司製造:EH-5057,熔點80。〇 4質量份、作為光起始 劑的光自由基聚合起始劑(汽巴嘉基(Ciba_Gage)公司製 造:IrgaCUre651) 1質量份、硬化觸媒(四國化成公司製 造:2MAOK) 2質量份、熱塑性聚合物微粒子公 司製造:F351 ) 20質量份、填充劑(填料)si〇2 1〇質量 份、石夕烧偶合劑(信越聚石夕氧公司製造:KBM-403) 1質 量份的樹脂組成物充分混合以成為均勻的液體,獲得液晶 密封劑。利用後述方法來測定黏度(初期黏度),結果為 240 Pa.s。 [實例2] 除了使多元酚硬化劑A為8質量份、一級多元胺硬化 劑D為8質量份,二級多元硫醇硬化劑為〇質量份以外, 與實例1同樣地獲得液晶密封劑。另外,利用後述方法來 測定黏度(初期黏度),結果為320 Pa.s。 27 201242986Pa.s~350 Pa.s. The liquid crystal sealing agent having a viscosity within the above range is excellent in coating property. (9) Method for producing liquid crystal sealing agent The liquid crystal sealing agent of the present invention is (1) a (meth)acrylic acid-modified epoxy resin containing an epoxy group and a (meth)acrylic group in the molecule, and (2) hardening. The agent, (3) a photoinitiator, and other components as needed are uniformly mixed and produced. The method of uniformly mixing is not particularly limited, and for example, it is preferably sufficiently kneaded using a three-parent mixer. Further, at this time, it is preferable to sufficiently defoam so that the liquid crystal sealing film 21 201242986 does not contain air bubbles. 2. Method of Manufacturing Liquid Crystal Display Panel The liquid crystal display panel of the present invention includes a display substrate, a pair of opposing earth plates inserted into a frame-shaped sealing member between the display substrate and the opposite substrate, and a filling substrate. A liquid crystal layer in a work chamber surrounded by a sealing member with the opposite substrate. The cured product of the liquid crystal sealing agent of the present invention can be made into a sealing member. The display substrate and the opposite substrate are both transparent substrates. The material of the transparent substrate is particularly limited, and examples thereof include glass, polycarbonate, polyethylene terephthalate, poly, wind, and polymethyl methacrylate (Methacrylate, pMMA). plastic. A thin matrix, a thin film transistor (TFT), a color light-emitting sheet, a black matrix, or the like may be disposed on the surface of the display substrate or the counter substrate. Further, the surface of the display substrate or the counter substrate is formed with an alignment, and a known organic alignment agent or inorganic alignment agent is contained in the alignment film. Method for manufacturing a liquid crystal display panel by using a liquid crystal dropping method package 3 · The sealing of the first agent is difficult; (4) The mechanical device is issued in a state in which the sealing is difficult to be hardened, and the pattern is surrounded by the above pattern. a region, or a liquid crystal added to the region of the other substrate that is surrounded by the seal pattern; and weight =); 2 step 'make the substrate and the other substrate to form a seal pattern 22 201242986t a4) 4 steps to harden the seal pattern. The state in which the seal pattern in the step a2) is not hardened refers to the state in which the hardening reaction of the liquid crystal post-sealant proceeds to the point before the gelation point. Therefore, in the step a2), in order to suppress the dissolution of the liquid crystal sealant in the liquid crystal, The seal pattern may be lightly irradiated or heated to be semi-hardened. One of the substrates and the other of the substrates are respectively a display substrate or a counter substrate. The liquid crystal sealing agent of the present invention has a small amount of powder in the curing agent, so that the sealing pattern can be thinned. The sealing pattern of the liquid crystal sealing agent of the present invention may have a cross-sectional area of about 15 μm 2 to 3 μ μm 2 . In the step a4), only hardening by heating may be performed, and it is preferred to perform hardening (temporary hardening) by light irradiation, followed by hardening by heat (formal hardening). The liquid crystal sealing agent is instantly hardened by temporary hardening by light irradiation, whereby the dissolution of each component in the liquid crystal can be suppressed. The photohardening time also depends on the composition of the liquid crystal encapsulant, for example, about 1 〇 t. The light irradiation energy may be an energy which can harden the (1) (meth)acrylic acid modified epoxy resin or the (4) (fluorenyl) acrylate monomer and/or oligomer. The light is preferably ultraviolet light. The heat hardening temperature also depends on the composition of the liquid crystal sealant, for example, Hot, and the heat hardening time is about 2 hours. Here, in the case where the liquid crystal display panel is manufactured by the liquid crystal dropping method, the step a3 is often carried out under reduced pressure, and the step a4) is carried out after being opened to atmospheric pressure. Specifically, after the two substrates are superposed in the step a3), the liquid crystal display panel is returned to atmospheric pressure. At this time, the area surrounded by the two substrates and the liquid crystal sealing agent was sealed, and the pressure-reduced state was maintained 23 201242986 4 1 . Therefore, in the region surrounded by the liquid crystal sealing agent, the force acts on the two substrates in the direction in which the substrates approach each other. On the other hand, since the outside of the frame of the liquid crystal sealing agent is opened to atmospheric pressure, the force does not act on the two substrates in the direction in which the substrates approach each other. Therefore, there is a problem that the substrate warps and the gap widens from the center portion of the liquid crystal display panel toward the outside of the liquid crystal sealing agent. If the gap is uneven in the liquid crystal display panel, the display reliability is lowered. In order to solve such a problem, a method of further arranging another frame (auxiliary seal) on the outer side of the frame (main seal) of the liquid crystal sealing agent has been conventionally used (for example, refer to Japanese Laid-Open Patent Publication No. 2002-328382). According to this method, the area outside the frame of the main seal, i.e., the main seal and the auxiliary seal, also becomes a depressurized state. Thereby, on the outer side of the main seal, the force acts on the two substrates in the direction in which the substrates approach each other, and the warpage of the substrate can be suppressed. Therefore, according to the method ', the gap in the liquid crystal display panel can be made uniform. Moreover, in order to improve the manufacturing efficiency of the liquid crystal display panel, it is desirable that the auxiliary seal is not formed. Therefore, as a method of making the two sheets of the gap uniform without forming an auxiliary seal, for example, the flexibility of the liquid crystal sealing agent is considered. After the liquid crystal is filled, when the liquid crystal display panel is opened to atmospheric pressure, the liquid crystal (four) ship is deformed with the movement of the substrate of the main (four) (the substrate is close to the I direction), and the emission suppression substrate is not required to be formed. Auxiliary seal. On the other hand, in the case of the liquid crystal sealing agent, the liquid crystal sealant has a large amount of powdery liquid crystals, and the liquid crystal sealing agent is hard. Further, the liquid crystal sealing agent of the present invention has a small amount of the powder component 24 20124298, and the liquid crystal sealing agent has high flexibility. Therefore, the liquid crystal display panel can be manufactured without forming the seal pattern necessary for sealing the liquid crystal without forming the auxiliary seal pattern. Further, the liquid crystal sealing agent of the present invention can be used not only for the above-described method for producing a liquid crystal surface panel by a liquid crystal dropping method but also for a method for producing a liquid crystal display panel by a liquid crystal injection method. A method of manufacturing a liquid crystal display panel using a liquid crystal injection method includes: M) a first step of forming a sealing pattern of the liquid crystal sealing agent of the present invention on a substrate; b2) a second step of sealing one substrate from another substrate [b3] In the third step, the sealing pattern is thermally cured to obtain a liquid crystal injecting unit having an injection port for injecting liquid crystal; b4) In the fourth step, liquid crystal is injected into the liquid crystal injecting unit via the injection port. And b5) Step 5, sealing the injection port. In the steps M to b3), the liquid crystal injection unit is prepared. First, prepare two transparent substrates (for example, glass plates). Then, a sealing pattern is formed on one of the substrates using a liquid crystal sealing agent. After the other substrate is superposed on the surface on which the substrate is formed, the sealing pattern may be cured. In this case, it is necessary to provide a filling port for injecting liquid crystal into a part of the liquid crystal injecting unit, and the injection port may be provided with a part of the opening when the sealing pattern is drawn. Further, after the seal pattern is formed, the pattern of the desired portion may be removed to provide an injection port. , 25 2012429861 b3) The thermal hardening conditions in the step also depend on the liquid formation 'for example 150. (: 2 hours to 5 hours or so. ^, and b4) steps are performed by the following known method, that is, the liquid crystal injection unit of the liquid crystal injection unit obtained in the step - b3) The injection port draws in the liquid crystal. b 5 Step 2 The liquid crystal sealing agent can also be sealed to the injection chamber of the liquid crystal injection unit to be hardened. The coating property of the liquid crystal sealing agent of the present invention is good, and the sealing member can be formed finely. In addition, the bonding strength is also good, and the viscosity stability is also excellent. By using the liquid crystal sealing agent of the present invention, it is possible to form only a sealing pattern necessary for sealing a liquid crystal without forming an auxiliary sealing pattern, and to obtain a liquid crystal display panel excellent in gap stability between substrates. Soil example [Synthesis Example 1] Synthesis of methacrylic acid modified bisphenol F type epoxy resin (7〇% partial thiol acrylate) 160 g of liquid bisphenol F type epoxy resin (Ep〇t〇ht 〇YDF-8170C, manufactured by Dongdu Chemical Co., Ltd., epoxy equivalent l6〇g/eq), 0.1 g of p-methoxyphenol as a polymerization inhibitor, g2 g of triethanolamine as a catalyst, and 70.0 g The methacrylic acid was added to the flask, and the mixture was allowed to react for 5 hours while stirring at 90 ° C under dry air. The obtained compound was washed twice with ultrapure water to obtain a methacrylic acid modified bisphenol F type epoxy resin. 26 201242986^ Here, the amount of the epoxy group contained in the bisphenol F-type epoxy resin which is a raw material is 1 mole. The number of mercaptoacrylic groups contained in the mercaptoacrylic acid to be reacted is 〇.7〇莫耳. Therefore, the obtained mercaptoacrylic acid modified bisphenol F type epoxy resin is a 70% partial mercapto acrylate. [Example 1] 5 parts by mass of a fluorenyl acrylate-modified bisphenol F-type epoxy resin (7 〇〇 / 0 part thiol acrylate) obtained in Synthesis Example 1 and a polyphenol were hardened using a two-roll mixer Agent A (manufactured by Mitsui Chemicals Co., Ltd.: Milex 3L, softening point 71 C) 4 parts by mass, secondary polythiol hardener B (manufactured by Showa Denko ΡΕ·1), 8 parts by mass, primary polyamine hardener D (adeka) Manufactured by the company: EH-5057, melting point 80. 4 parts by mass, photo-radical polymerization initiator as photoinitiator (manufactured by Ciba_Gage: IrgaCUre651) 1 part by mass, hardening catalyst (four Manufactured by Guohuacheng Co., Ltd.: 2MAOK) 2 parts by mass, manufactured by Thermoplastic Polymer Microparticles Co., Ltd.: F351) 20 parts by mass, filler (filler) si〇2 1 〇 parts by mass, Shi Xi Shao coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd. : KBM-403) 1 part by mass of the resin composition was sufficiently mixed to obtain a uniform liquid, and a liquid crystal sealing agent was obtained. The viscosity (initial viscosity) was measured by the method described later, and as a result, it was 240 Pa.s. [Example 2] A liquid crystal sealing agent was obtained in the same manner as in Example 1 except that the polyhydric phenol curing agent A was 8 parts by mass, the primary polyamine curing agent D was 8 parts by mass, and the secondary polythiol curing agent was 〇 by mass. Further, the viscosity (initial viscosity) was measured by the method described later, and as a result, it was 320 Pa.s. 27 201242986
» Λ I» Λ I
[實例3] 除了使多元酚硬化劑Α為8質量份、二級多元硫醇硬 化劑B為8質量份、一級多元胺硬化劑為〇質量份以外, 與實例1同樣地獲得液晶密封劑。另外,利用後述方法來 測定黏度(初期黏度),結果為250Pa.s。 [實例4] 除了使二級多元硫醇硬化劑B為8質量份、一級多元 胺硬化劑D為8質量份以外’與實例1同樣地獲得液晶密 封劑。另外’利用後述方法來測定黏度(初期黏度),結果 為 260 Pa.s。 [實例5] 除了使合成例1中獲得的曱基丙烯酸改質雙紛F型環 氧樹脂(70%部分甲基丙稀酸化物)的量為4〇質量份、多 元酚硬化劑A的量為7質量份、二級多元硫醇硬化劑B的 I為14質量份、一級多元胺硬化劑d的量為7質量份、 熱塑性聚合物微粒子的量為19質量份、填料的量為9質量 伤以外,與貫例1同樣地獲得液晶密封劑。另外,利用後 述方法來測定黏度(初期黏度),結果為21〇 pa,s。 [實例6] ^除了使合成例1中獲得的甲基丙烯酸改質雙酚F型環 氧樹脂(70%部分甲基丙烯酸化物)的量為56質量份、多 =盼硬化=jA的量* i f量份、二級多元硫醇硬化细的 3:為3質量份 '-級多元胺硬化劑D的量為】質量份、熱 塑性聚合物齡子的量為23 f量份、填料的質量為12質' 28 201242986l j. 量份以外,與實例1 IS]樣丨祕得液晶密義。另外,利用 後述方法來測定黏度(初期黏度)’結果為3GGPa·8。 [實例7] 除了使用多元紛硬化劑B (DIC公司製造.TD2131, 軟化點8G〇C) 4質量份代替多元_化劑A ’且使二級多 元硫醇硬化劑B的量為8質量份、一級多元胺硬化劑D的 量為4質量份以外,與實例1同樣地獲得液晶密封劑。另 外’利用後述方法來測定黏度(初期黏度)’結果為250 Pa*s 〇 [實例8] 除了使用多元酚硬化劑c (三菱化學公司製造·· 170, 軟化點90Ϊ:) 4質量份代替多元酚硬化劑A,且使二級多 元硫醇硬化劑B的量為8質量份、一級多元胺硬化劑d的 量為4質量份以外,與實例1同樣地獲得液晶密封劑。另 外’利用後述方法來測定黏度(初期黏度),結果為255 Pa.s。 [實例9] 除了使盼硬化劑A的量為4質量份、二級多元硫醇硬 化劑B的量為8質量份,且使用多元胺硬化劑a (曰本 Hydrazine公司製造:ADH,熔點i80〇c ) 4質量份及多元 胺硬化劑D4質量份作為一級多元胺硬化劑以外,與實例 1同樣地獲得液晶密封劑。另外,利用後述方法來測定黏 度(初期黏度),結果為270 Pa.s。 [實例10] 29 201242986t 除了使酚硬化劑A的量為4質量份、二級多元硫醇硬 化劑B的量為8質量份,且使用多元胺硬化劑B (富士化 成工業製造:FujicureFXR-1020,炫點i25°C ) 4質量份及 夕元fee硬化劑D 4質量份作為一級多元胺硬化劑以外,與 實例1同樣地獲得液晶密封劑。另外,利用後述方法來測 定黏度(初期黏度),結果為260 Pa*s。 [實例11] 除了使酚硬化劑A的量為4質量份、二級多元硫醇硬 化劑B的量為8質量份,且使用多元胺硬化劑c( Ajin〇m〇t〇[Example 3] A liquid crystal sealing agent was obtained in the same manner as in Example 1 except that the polyhydric phenol curing agent was 8 parts by mass, the secondary polythiol hardener B was 8 parts by mass, and the primary polyamine curing agent was yt by mass. Further, the viscosity (initial viscosity) was measured by the method described later, and as a result, it was 250 Pa.s. [Example 4] A liquid crystal sealing agent was obtained in the same manner as in Example 1 except that the secondary polythiol curing agent B was 8 parts by mass and the primary polyamine curing agent D was 8 parts by mass. Further, the viscosity (initial viscosity) was measured by the method described later, and as a result, it was 260 Pa.s. [Example 5] The amount of the thioglycol-modified double-type F-type epoxy resin (70% partial methyl acrylate) obtained in Synthesis Example 1 was 4 parts by mass, and the amount of the polyphenol phenol hardener A was 7 parts by mass of the secondary polythiol curing agent B is 14 parts by mass, the amount of the primary polyamine curing agent d is 7 parts by mass, the amount of the thermoplastic polymer fine particles is 19 parts by mass, and the amount of the filler is 9 mass. A liquid crystal sealing agent was obtained in the same manner as in Example 1 except for the wound. Further, the viscosity (initial viscosity) was measured by the method described below, and as a result, it was 21 〇 pa, s. [Example 6] ^ The amount of the methacrylic acid-modified bisphenol F-type epoxy resin (70% partial methacrylate) obtained in Synthesis Example 1 was 56 parts by mass, and more = the amount of hardening = jA* If the amount of the second-order polythiol hardened 3: 3 parts by mass of the '--type polyamine hardener D is 】 by mass, the amount of the thermoplastic polymer is 23 f, and the mass of the filler is 12 quality ' 28 201242986l j. In addition to the amount, and the example 1 IS] 丨 secret liquid crystal secret. Further, the viscosity (initial viscosity) was measured by the method described later as a result of 3 GGPa·8. [Example 7] In addition to using a multi-component hardener B (manufactured by DIC Corporation, TD2131, softening point 8G〇C), 4 parts by mass was used instead of the poly-chemical agent A' and the amount of the second-order polythiol hardener B was 8 parts by mass. A liquid crystal sealing agent was obtained in the same manner as in Example 1 except that the amount of the primary polyamine curing agent D was 4 parts by mass. In addition, the result of measuring the viscosity (initial viscosity) by the method described later is 250 Pa*s 〇 [Example 8] In addition to the use of polyphenol hardener c (Mitsubishi Chemical Co., Ltd. 170, softening point 90Ϊ:) 4 parts by mass instead of plural A liquid crystal sealing agent was obtained in the same manner as in Example 1 except that the amount of the secondary polythiol curing agent B was 8 parts by mass and the amount of the primary polyamine curing agent d was 4 parts by mass. Further, the viscosity (initial viscosity) was measured by the method described later, and as a result, it was 255 Pa.s. [Example 9] The amount of the hardener A was 4 parts by mass, the amount of the secondary polythiol hardener B was 8 parts by mass, and a polyamine hardener a (manufactured by Hydrazine Hydrazine: ADH, melting point i80) was used. 〇c) A liquid crystal sealing agent was obtained in the same manner as in Example 1 except that 4 parts by mass and a polyamine curing agent D4 parts by mass were used as the primary polyamine curing agent. Further, the viscosity (initial viscosity) was measured by the method described later, and as a result, it was 270 Pa.s. [Example 10] 29 201242986t The amount of the phenol curing agent A was 4 parts by mass, the amount of the secondary polythiol curing agent B was 8 parts by mass, and the polyamine curing agent B (Fuji Chemical Industrial Co., Ltd.: Fujicure FXR-1020) was used. In the same manner as in Example 1, a liquid crystal sealing agent was obtained in the same manner as in Example 1 except that 4 parts by mass of the Fe-based curing agent D and 4 parts by mass were used as the primary polyamine curing agent. Further, the viscosity (initial viscosity) was measured by the method described later, and as a result, it was 260 Pa*s. [Example 11] The amount of the phenolic hardener A was 4 parts by mass, the amount of the secondary polythiol hardener B was 8 parts by mass, and a polyamine hardener c (Ajin〇m〇t〇) was used.
Fine-Techno公司製造:νχ)Η,炫點12〇。〇)4質量份作為 一級多元胺硬化劑以外,與實例丨同樣地獲得液晶密封 劑。另外,利用後述方法來測定黏度(初期黏度),結果為 250 Pa.s。 [比較例1] 除了使作為硬化劑的酚硬化劑A為16質量份、二級 多元硫醇硬化劑及一級多元胺硬化劑為〇質量份以外,與 貫例1同樣地獲得液晶密封劑。另外,利用後述方法來測 定黏度(初期黏度),結果為350 Pa*s。 [比較例2] 除了使作為硬化劑的二級多元硫醇硬化劑B為16質 量份、多元酚硬化劑及一級多元胺硬化劑為〇質量份以 外’與貫例1同樣地獲得液晶密封劑。另外,利用後述方 法來測定黏度(初期黏度),結果為21〇 pa*s。 [比較例3] 30 201242986^ 、除了使作為硬化劑的一級多元胺硬化劑D為16質量 伤、多^酚硬化劑及二級多元硫醇硬化劑為〇質量份以 外,與貫例1同樣地獲得液晶密封劑。另外,利用後述方 法來測定黏度(初期黏度),結果為 370 Pa.s。 [比較例4] # 士除了使合成例丨中獲得的曱基丙烯酸改質雙酚F型環 氧樹脂(70%部分甲基丙稀酸化物)的量為%質量份、紛 更化jA的里為8質量份、二級多元硫醇硬化劑B的量為 16質=份、多元胺硬化劑D的量為8質量份、填料的量為 =重量份、熱塑性聚合物微粒子的量為8質量份以外與 =例1同樣地獲得液晶密封劑。另外,·後述方法來測 疋黏度(初期黏度),結果為28〇Pa,s。 [比較例5] 卜* 了使合成例1中獲得的甲基丙稀酸改質雙紛F型環 乳樹脂(70%部分甲基丙稀酸化物)的量為%質量份、酚 的量為G.5質量份、二級多元硫醇硬化劑B的量 ς質量份、多元胺硬化劑D的量為G 5 f量份、献塑性 外粒子的量為23質量份、填料的量為12質量份以 :、實例1同樣地獲得液晶密封劑。另外,利用後述方 忐來測定黏度(初期黏度),結果為27〇Pa,s。 [比較例6] 除了使用一級多元硫醇硬化劑(堺化學公司製造: 硬三,曱基丙烷巯基丙酸)8質量份作為多元硫醇 Μ以外’與實例1同樣地獲得液晶密封劑。另外,利 31 201242986 用後述方法來測定黏度(初期黏度),結果為260Pa,s。 [比較例7] 除了使用酚硬化劑D (DIC公司製造·· TD2090,軟化 點100 C)作為多元紛硬化劑以外,與實例1同樣地声得 液晶密封劑。另外,利用後述方法來測定黏度(初期黏度), 結果為270Pa,s。 [比較例8] 使用二親混合機’將包含環氧樹脂(日本化藥股份有 限公司公司製造:EOCN-1020-75) 10質量份、(曱基)丙烯 酸酯單體及/或低聚物(大阪有機化學工業公司製造: Biscoat #300) 53質量份、一級多元硫醇硬化劑A5質量 份、一級多元胺化合物(Ajinomoto Fine-Techno公司製造 公司製造:Amicure VDH) 5質量份、光自由基聚合起始 劑(汽巴嘉基公司製造·· Irgacure 184) 2質量份、熱塑性 聚合物微粒子(Ganz公司製造:F351) 12質量份、Si02 (填料)12質量份、石夕院偶合劑(信越聚石夕氧公司製造: KBM_403) 1質量份的硬化性樹脂組成物充分混合以成為 均勻的液體,獲得液晶密封劑。另外,利用後述方法來測 定黏度(初期黏度),結果為250 Pa*s。 [評價] 對實例1〜實例11及比較例1〜比較例8測定黏度穩 定性、密封塗佈性、黏接強度、顯示狀態、高溫高濕可靠 性以及間隙精度。各測定方法如下。將該等測定的結果示 於表1〜表3中。 32Made by Fine-Techno: νχ) Η, dazzle 12 〇. 〇) 4 parts by mass of a liquid crystal sealing agent was obtained in the same manner as in the example hydrazine as a primary polyamine curing agent. Further, the viscosity (initial viscosity) was measured by the method described later, and as a result, it was 250 Pa·s. [Comparative Example 1] A liquid crystal sealing agent was obtained in the same manner as in Example 1 except that the phenol curing agent A as the curing agent was 16 parts by mass, the secondary polythiol curing agent, and the primary polyamine curing agent were 5% by mass. Further, the viscosity (initial viscosity) was measured by the method described later, and as a result, it was 350 Pa*s. [Comparative Example 2] A liquid crystal sealing agent was obtained in the same manner as in Example 1 except that the secondary polythiol curing agent B as a curing agent was 16 parts by mass, and the polyhydric phenol curing agent and the primary polyamine curing agent were in the form of a mass fraction. . Further, the viscosity (initial viscosity) was measured by the method described later, and as a result, it was 21 〇 pa*s. [Comparative Example 3] 30 201242986, except that the primary polyamine curing agent D as a curing agent was 16 mass damage, the polyphenol curing agent, and the secondary polythiol curing agent were 〇 mass parts, the same as in Example 1. A liquid crystal sealing agent was obtained. Further, the viscosity (initial viscosity) was measured by the method described later, and as a result, it was 370 Pa.s. [Comparative Example 4] The amount of the mercaptoacrylic acid-modified bisphenol F-type epoxy resin (70% partial methyl acrylate) obtained in the synthesis example was % by mass, and the difference was jA. 8 parts by mass, the amount of the secondary polythiol hardener B is 16 masses = parts, the amount of the polyamine hardener D is 8 parts by mass, the amount of the filler is = parts by weight, and the amount of the thermoplastic polymer fine particles is 8. A liquid crystal sealing agent was obtained in the same manner as in Example 1 except for the mass portion. In addition, the viscosity (initial viscosity) was measured by the method described later, and the result was 28 〇Pa, s. [Comparative Example 5] The amount of the methacrylic acid-modified double-type F-type cyclic emulsion resin (70% partial methyl acrylate) obtained in Synthesis Example 1 was % by mass, and the amount of phenol was used. The amount of G. 5 parts by mass, the amount of the secondary polythiol curing agent B, the amount of the polyamine curing agent D is G 5 f parts, the amount of plastic outer particles is 23 parts by mass, and the amount of the filler is 12 parts by mass of the liquid crystal sealing agent was obtained in the same manner as in Example 1. Further, the viscosity (initial viscosity) was measured by the method described later, and as a result, it was 27 〇Pa, s. [Comparative Example 6] A liquid crystal sealing agent was obtained in the same manner as in Example 1 except that 8 parts by mass of a polyvalent thiol curing agent (manufactured by Seiko Chemical Co., Ltd.: hard trimethyl hydrazinyl mercaptopropionic acid) was used as the polythiol hydrazine. Further, Lee 31 201242986 measured the viscosity (initial viscosity) by the method described later and found that it was 260 Pa, s. [Comparative Example 7] A liquid crystal sealing agent was obtained in the same manner as in Example 1 except that a phenol curing agent D (manufactured by DIC Corporation, TD2090, softening point 100 C) was used as the polyvalent hardener. Further, the viscosity (initial viscosity) was measured by the method described later, and as a result, it was 270 Pa, s. [Comparative Example 8] 10 parts by mass of (meth) acrylate monomer and/or oligomer containing epoxy resin (manufactured by Nippon Kayaku Co., Ltd.: EOCN-1020-75) was used. (Manufactured by Osaka Organic Chemical Industry Co., Ltd.: Biscoat #300) 53 parts by mass, a primary polythiol hardener A5 parts by mass, a primary polyamine compound (manufactured by Ajinomoto Fine-Techno Co., Ltd.: Amicure VDH) 5 parts by mass, photoradical Polymerization initiator (manufactured by Ciba Specialty Chemicals Co., Ltd., Irgacure 184) 2 parts by mass, thermoplastic polymer microparticles (manufactured by Ganz Co., Ltd.: F351) 12 parts by mass, SiO 2 (filler) 12 parts by mass, Shi Xiyuan coupling agent (Xin Yue) Manufactured by Ju Shi Xi Oxygen Co., Ltd.: KBM_403) 1 part by mass of the curable resin composition is thoroughly mixed to form a uniform liquid, and a liquid crystal sealing agent is obtained. Further, the viscosity (initial viscosity) was measured by the method described later, and as a result, it was 250 Pa*s. [Evaluation] Viscosity stability, seal coatability, adhesion strength, display state, high-temperature and high-humidity reliability, and gap precision were measured for Examples 1 to 11 and Comparative Examples 1 to 8. Each measurement method is as follows. The results of these measurements are shown in Tables 1 to 3. 32
201242986 x I 1) 黏度穩定性 以分配用注射器内的液曰宓la 夜日日袷封劑的重量為10 g的方 式知取貫例及比較例中獲得 理。饼9你田c 的液晶畨封劑後,進行脫泡處 的後放、8 型黏度計以室溫(25。〇、25 rpm201242986 x I 1) Viscosity stability The weight of the liquid 曰宓la nightly sealant in the dispensing syringe was 10 g, and the results were obtained in the example and the comparative example. After the liquid crystal sealant of the cake 9 of your field c, carry out the defoaming post-release, type 8 viscometer at room temperature (25. 〇, 25 rpm
的條件測定初期黏度。繼@ 5 P 再次以相同條件來測定黏度。求出 此時的保存1週後_度相對於初期黏度的上升率。 保存後黏度相對於初期黏度的 評價為◎(非常優異).相、两η ^ 借以下時 :吊慢兵),超過u倍且為12倍以評價 為〇 (優異);超過1.2於且兔τ < Μ 士 ¥、 σ且為I.5倍以下時評價為△(稍 差);超過1.5倍時評價為X (差)。 2) 密封塗佈性 將實例及比較例中獲得的液晶密封劑2〇 g於真空下 填^至注射器中。繼而,自裝有口徑0.35醜的針尖的注 射器中吐出lg後,於23t:下放置丨日。然後,將該注射 器設置於分配器(Hitachi Plant Technol〇gies公司製造) 中,於360 mmx470 mm的液晶顯示面板用玻璃基板(曰 本電氣硝子公司製造)上形成5 〇個3 5 m m χ 4 〇 m m的密封 圖案。此時,將吐出壓力設定為0.3 MPa、截面積設定為 3000 μιη、塗佈速度设定為i〇〇mm/s。如以下般對所得^ 密封圖案的形狀進行評價。 ' 完全未產生密封缺口、密封拉絲的框模為5 〇個:◎( 常優異) 完全未產生密封缺口、密封拉絲的框模為48個〜49 33 201242986 個:〇 (優異) 完全未產生密封缺口、密封拉絲的框模小於48個:X (差) 3)顯示狀態及高溫高濕可靠性試驗 對上述實例及比較例中獲得的液晶密封劑利用分配器 (Shot Master .武藏尚科技(Musashi-Engineering )製造)’ 於預先形成有透明電極及配向膜的40 mm><45 mm玻璃基 板(EHC 公司製造 ’ RT-DM88-PIN)上形成 35 mm><40 mm 的四方形的密封圖案(截面積3500 μιη2)(主密封)。繼 而’於其外周形成四方形的密封圖案(38 mmx43 mm的四 方形的密封圖案)。 繼而,利用分配器將相當於貼合後的面板内容量的液 晶材料(MLC-119000-000 : Merck公司製造)精確滴加至 主密封的框内。繼而,將與其成對的玻璃基板於減壓下貼 合後,進行大氣開放而貼合。接著,將所貼合的2片玻璃 基板於遮光箱内保持3分鐘後,照射2〇〇〇 mJ/cm2的紫外 線’進而於1 〇〇°C下加熱1小時。 將所得的液晶顯示面板於7〇〇c、95%RH的環境下於 值溫槽中保存,小時。目顺察保存前後的密封部周 的液晶所產生的色差。完全未確则色歸評價為 常優異);幾乎未確認到色差時評價為。(優異);確 色差時評價為日_認到色差時評價為x (差)。“ 進而,藉由直流電源裝置以5V的施加電壓使 槽中保存後取出的液晶顯示面板驅動。根據液晶密封劑: 34 201242986 =;==初:否正常發揮功能,來評價 際而液晶顯示雜可正常^於顯示特性’將直至密封邊 邊際的附近小於(U mm U時評價為◎(優異),於密封 評價為。(良好),於密封g5忍到液晶顯示功能的異常時 南 、在十邊際附近超過0.1 mm且小於0.3 二=晶顯示功能的異常時評價為△(稍差),於 價為X (1「差)。過〇.3瓜茁處確認到顯示功能的異常時評 4) 黏接強度 於上述3)中’對在,&溫槽中保存後的液晶顯示面板 的樣品使肋伸試崎置(Imese。製造),以2 的 拉伸速度平面拉伸強度。黏接性是如以下般進行評價。 黏接強度為20 MPa以上:◎(優異) 黏接強度為15 MPa以上且小於2G MPa :。(優異) 15 MPa : Δ 黏接強度小於7 MPa : χ (差) 5) 間隙精度 對實例及比較例中獲得的液晶密封劑利用分配器 (Shot Master:武藏高科技製造),於預先形成有透明電極 及配向膜的40 mm><45 mm玻璃基板(EHC公司製造, RT-DM88-PIN)上形成35 mm><40 mm的四方形的密封圖 案(截面積3000 μιη2)(主密封)。其後,不形成外周的密 封圖案。測定將與其成對的基板貼合後的密封劑的線寬, 根據其值來確認間隙精度。密封線寬小於1 mm時評價為〇 35 201242986 -----rl (優異)’為1 mm以上時評價為χ (差)。 36 201242986 JUfNal 寸 【11 實例 〇\ 寸 1 1 1 1 00 寸 1 1 寸 fN 〇 — 〇 〇 〇 ◎ ◎ 〇 00 1 1 寸 1 1 00 1 I 1 寸 CN 〇 *·« 〇 〇 〇 ◎ ◎ 〇 卜 1 1 1 1 00 1 1 1 寸 (N 〇 〇 〇 ◎ ◎ ◎ 〇 v〇 l〇 1 1 1 1 m 1 1 1 (N (N (N ◎ ◎ 〇 ◎ ◎ 〇 o 卜 1 1 1 1 1 1 1 卜 CN 〇\ ON 〇 〇 ◎ ◎ ◎ 〇 寸 1 1 1 1 1 〇〇 1 1 1 00 CN 〇 〇 〇 ◎ ◎ ◎ 〇 00 1 1 1 1 00 1 1 1 1 (N 〇 ◎ ◎ 〇 ◎ ◎ 〇 CN 00 1 1 1 1 1 1 1 1 00 «Ν 〇 〇 〇 ◎ ◎ ◎ 〇 寸 1 1 1 1 00 1 1 1 寸 »—Η CN 〇 〇 〇 ◎ ◎ ◎ 〇 /-~N ύ t ^ 5 ^ !φ备 VV· Mj ^ r r ^ 5f <°Si B- 酚硬化劑A (軟化點71 °C) 盼硬化劑B (軟化點80°c ) 酚硬化劑C (軟化點90°c ) 酚硬化劑D (軟化點100°c ) 硫醇硬化劑A(—級多元硫醇) 硫醇硬化劑B (二級多元硫醇) 胺硬化劑A (熔點180°c) 胺硬化劑B (熔點125°c) 胺硬化劑C (熔點120°c) 胺硬化劑D (熔點80°C ) Irgacure 651 2MAOK F351 Si02 KBM-403 黏度穩定性 密封塗佈性 黏接強度 顯示狀態 高溫高濕可靠性 間隙精度 酚系硬化劑 硫醇系硬化 胺系硬化劑 光起始劑 硬化觸媒 熱塑性聚合 物微粒子 填料 偶合劑 組成 評價The initial viscosity was determined by the conditions. The viscosity was measured again under the same conditions following @ 5 P. The rate of increase of the _ degree relative to the initial viscosity after one week of storage was determined. The evaluation of the viscosity after storage with respect to the initial viscosity was ◎ (very excellent). The phase, the two η ^ borrowed from the following: hangs down, and exceeded u times and was 12 times to evaluate as 〇 (excellent); more than 1.2 and rabbit τ < Μ士, σ is 1.5 times or less, and is evaluated as Δ (slightly worse); when it is more than 1.5 times, it is evaluated as X (poor). 2) Seal coating property The liquid crystal sealing agent 2 〇 g obtained in the examples and the comparative examples was filled under vacuum into a syringe. Then, after lg was spit out from a syringe equipped with a needle tip having a diameter of 0.35, the next day was placed under 23t:. Then, the syringe was placed in a dispenser (manufactured by Hitachi Plant Technol〇gies Co., Ltd.) to form 5 3 3 5 mm χ 4 〇 on a glass substrate for a liquid crystal display panel of 360 mm x 470 mm (manufactured by Sakamoto Electric Glass Co., Ltd.). Mm seal pattern. At this time, the discharge pressure was set to 0.3 MPa, the cross-sectional area was set to 3000 μm, and the coating speed was set to i 〇〇 mm/s. The shape of the obtained seal pattern was evaluated as follows. 'The frame mold with no seal notch and seal drawing at all is 5 :: ◎ (often excellent) No seal notch is produced at all, and the frame mold for sealing wire drawing is 48~49 33 201242986 pieces: 〇 (excellent) No seal at all The frame mold of the notch and the sealed wire drawing is less than 48: X (poor) 3) Display state and high temperature and high humidity reliability test The liquid crystal sealant utilization distributor obtained in the above examples and comparative examples (Shot Master. Musashi -Engineering) Manufactured a square seal of 35 mm><40 mm on a 40 mm><45 mm glass substrate ("RT-DM88-PIN" manufactured by EHC) in which a transparent electrode and an alignment film were formed in advance. Pattern (cross-sectional area 3500 μιη2) (main seal). Then, a square seal pattern (a square seal pattern of 38 mm x 43 mm) was formed on the outer periphery thereof. Then, a liquid crystal material (MLC-119000-000: manufactured by Merck) equivalent to the amount of the panel content after the bonding was accurately dropped into the frame of the main seal by means of a dispenser. Then, the glass substrate paired therewith was bonded under reduced pressure, and then the atmosphere was opened and bonded. Next, the two glass substrates to be bonded were held in a light-shielded box for 3 minutes, and then irradiated with ultraviolet rays of 2 〇〇〇 mJ/cm 2 and further heated at 1 ° C for 1 hour. The obtained liquid crystal display panel was stored in a temperature bath at a temperature of 7 ° C and 95% RH for several hours. The chromatic aberration caused by the liquid crystal around the seal portion before and after storage was observed. The color is judged to be excellent when it is completely undetermined); it is evaluated when the color difference is hardly confirmed. (Excellent); when the color difference is confirmed, it is evaluated as x (differential) when the color difference is recognized. Further, the liquid crystal display panel taken out after being stored in the tank with a voltage of 5 V is applied by a DC power supply device. According to the liquid crystal sealing agent: 34 201242986 =; == Initial: No function normally, and the liquid crystal display is mixed. Normally, the display characteristic 'will be less than the vicinity of the edge of the sealing edge (it is evaluated as ◎ (excellent) when U mm U, and is evaluated as good in the seal. (good), when the sealing g5 endures the abnormality of the liquid crystal display function, the south is When the ten-edge is more than 0.1 mm and less than 0.3, the abnormality of the two-crystal display function is evaluated as Δ (slightly worse), and the price is X (1 "poor". If the abnormality of the display function is confirmed at the 茁 3 3 The adhesion strength is the same as in the above 3) 'The sample of the liquid crystal display panel which was stored in the & warming tank, and the rib extension test was made (manufactured by Imese), and the tensile strength was measured at a tensile speed of 2. The adhesion was evaluated as follows. The bonding strength was 20 MPa or more: ◎ (excellent) The bonding strength was 15 MPa or more and less than 2 G MPa : (excellent) 15 MPa : Δ The bonding strength was less than 7 MPa : χ ( Poor) 5) Clearance accuracy for examples and comparative examples The obtained liquid crystal sealing agent was formed on a 40 mm><45 mm glass substrate (manufactured by EHC, RT-DM88-PIN) in which a transparent electrode and an alignment film were formed in advance using a dispenser (Shot Master: manufactured by Musashi Hi-Tech). 35 mm><40 mm square sealing pattern (cross-sectional area 3000 μm 2) (main seal). Thereafter, the outer peripheral seal pattern is not formed. The line width of the sealant after bonding the paired substrates is measured. The clearance accuracy is checked according to the value. When the seal line width is less than 1 mm, it is evaluated as 〇35 201242986 -----rl (excellent) when it is 1 mm or more, it is evaluated as χ (poor). 36 201242986 JUfNal inch [11 example 〇 \ 1 1 1 1 00 inch 1 1 inch fN 〇 - 〇〇〇 ◎ ◎ 〇 00 1 1 inch 1 1 00 1 I 1 inch CN 〇*·« 〇〇〇 ◎ ◎ 〇 1 1 1 1 1 00 1 1 1 inch (N 〇〇〇 ◎ ◎ ◎ 〇v〇l〇1 1 1 1 m 1 1 1 (N (N ◎ ◎ ◎ ◎ ◎ 〇o 卜 1 1 1 1 1 1 1 卜 CN 〇 \ ON 〇〇 ◎ ◎ ◎ 〇 1 1 1 1 1 〇〇 1 1 1 00 CN 〇〇〇 ◎ ◎ ◎ 〇 00 1 1 1 1 00 1 1 1 1 (N 〇 ◎ ◎ 〇 ◎ ◎ 〇CN 00 1 1 1 1 1 1 1 1 00 «Ν 〇〇〇 ◎ ◎ ◎ 〇 inch 1 1 1 1 00 1 1 1 inch »—Η CN 〇〇〇◎ ◎ ◎ 〇 /-~N ύ t ^ 5 ^ !φ备VV· Mj ^ rr ^ 5f <°Si B-phenol hardener A (softening point 71 °C) Anticipating agent B (softening point 80 °c) Phenol hardener C (softening point 90 °c) phenol hardener D (softening point 100 °c) thiol hardener A (grade polythiol) thiol hardener B (secondary polythiol) amine hardener A (melting point 180 °c) Amine hardener B (melting point 125 ° c) Amine hardener C (melting point 120 ° c) Amine hardener D (melting point 80 ° C) Irgacure 651 2MAOK F351 Si02 KBM-403 Viscosity stability seal coating adhesion Strength display state high temperature and high humidity reliability gap precision phenolic hardener thiol-based hardening amine hardener photoinitiator hardening catalyst thermoplastic polymer microparticle filler coupling agent composition evaluation
Li 5 201242986Li 5 201242986
Ja(N£ 寸 【<N<】 卜 < 1 1 寸 1 00 1 1 1 寸 CN 〇 ◎ 〇 X <] <3 〇 寸 1 1 1 00 1 1 1 1 (N 〇 X 〇 < <1 < 〇 to 00 ν-ί Ο 1 1 1 1 (N 1 1 1 ο (N m CN (N ◎ ◎ X X X 0 比較例 寸 〇〇 CO οο 1 1 1 1 Ο 1 1 1 οο <N oo 00 < 〇 < < <] X ΓΟ I 1 1 1 1 1 1 1 1 ν〇 (N 〇 < X ◎ ◎ ◎ X (Ν I 1 1 1 1 1 1 1 I CN 〇 〈 ◎ < < < 〇 1 1 1 1 1 1 1 1 1 (N 〇 ◎ 〇 X < < 〇 λ: 寸 1 1 1 1 00 1 1 寸 1 CN 〇 < 〇 〇 ◎ ◎ 〇 〇 寸 1 1 1 1 00 1 寸 1 寸 <N 〇 0 Ο 〇 〇 〇 0 /—N 味I ft π怒 4j Β- 酚硬化劑A (軟化點71°C) 盼硬化劑B (軟化點80°c ) 盼硬化劑C (軟化點90°c ) 酚硬化劑D (軟化點100°c ) 硫醇硬化劑A (—級多元硫醇) 硫醇硬化劑B (二級多元硫醇) 胺硬化劑A (熔點180°c) 胺硬化劑B (熔點125°c) 胺硬化劑C (熔點120°c) 胺硬化劑D (熔點80°c) Irgacure 651 2MA0K F351 Si〇2 KBM-403 黏度穩定性 密封塗佈性 黏接強度 顯示狀態 高溫高濕可靠性 間隙精度 酚系硬化劑 硫醇系硬化 胺系硬化劑 光起始劑 硬化觸媒 熱塑性聚合 物微粒子 填料 偶合劑 組成 評價 °°e 201242986 J-aCNrnz-l 寸 鬥e<】 比較例8 ο 1 1 1 < IT) 1 1 1 1 (N 1 (N «•Η < 〇 < < 〇 〇 EOCN-1020-75 Biscoat #300 酴硬化劑A 盼硬化劑B 盼硬化劑C 盼硬化劑D 硫醇硬化劑A 硫醇硬化劑B 胺硬化劑A 胺硬化劑B 胺硬化劑C 胺硬化劑D Irgacure 651 1 F351 Si02 ΚΒΜ-403 黏度穩定性 密封塗佈性 黏接強度 顯示狀態 高溫高濕可靠性 間隙精度 環氧樹脂 (甲基)丙烯酸醋單體及/或寡物 酚系硬化劑 硫醇系硬化劑 胺系硬化劑 光聚合起始劑 硬化觸媒 熱塑性粒子 填料 偶合劑 組成 評價Ja(N£inch[<N<] Bu<1 1 inch 1 00 1 1 1 inch CN 〇◎ 〇X <] <3 〇 inch 1 1 1 00 1 1 1 1 (N 〇X 〇< ; <1 <1 < 〇to 00 ν-ί Ο 1 1 1 1 (N 1 1 1 ο (N m CN (N ◎ ◎ XXX 0 Comparative example inch 〇〇CO οο 1 1 1 1 Ο 1 1 1 οο <;N oo 00 <〇<<<> X ΓΟ I 1 1 1 1 1 1 1 1 ν〇(N 〇< X ◎ ◎ ◎ X (Ν I 1 1 1 1 1 1 1 I CN 〇 < ◎ <<<< lt1 1 1 1 1 1 1 1 1 (N 〇◎ 〇X << 〇λ: inch 1 1 1 1 00 1 1 inch 1 CN 〇< 〇〇◎ ◎ 〇 〇 inch 1 1 1 1 00 1 inch 1 inch <N 〇0 Ο 〇〇〇0 /—N flavor I ft π anger 4j Β-phenol hardener A (softening point 71 ° C) Hope hardener B (softening point 80°c) Anti-hardener C (softening point 90°c) Phenol hardener D (softening point 100°c) Thiol hardener A (grade polythiol) Thiol hardener B (secondary polythiol) Amine hardener A (melting point 180 ° c) Amine hardener B (melting point 125 ° c) Amine hardener C (melting point 120 ° c) Amine hardener D (melting point 80 ° C) Irgacure 651 2MA0K F351 Si〇2 KBM-403 Viscosity stability seal coating adhesive strength display state high temperature and high humidity reliability gap precision phenolic hardener thiol-based hardening amine hardener photoinitiator hardening catalyst thermoplastic polymer microparticle filler Evaluation of coupler composition °°e 201242986 J-aCNrnz-l inch bucket e<] Comparative example 8 ο 1 1 1 <IT) 1 1 1 1 (N 1 (N «•Η <〇<< 〇〇 EOCN-1020-75 Biscoat #300 Tantalum Hardener A Hope Hardener B Hope Hardener C Hope Hardener D Thiol Curing Agent A Thiol Curing Agent B Amine Hardener A Amine Hardener B Amine Hardener C Amine Hardener D Irgacure 651 1 F351 Si02 ΚΒΜ-403 Viscosity stability seal coating adhesive strength display state high temperature and high humidity reliability gap precision epoxy resin (meth)acrylic acid vinegar monomer and / or oligophenolic hardener thiol system Hardener amine curing agent photopolymerization initiator hardening catalyst thermoplastic particle filler coupling agent composition evaluation
201242986a X 根據表1及表2得知,於使用選自由軟化點為5(^c〜 90°C的多元酚硬化劑、熔點為23。〇以下的二級多元硫醇硬 化劑、及炫點為60°C〜18(TC的一級多元胺硬化劑所組成 的組群中的兩種以上的硬化劑的情形時,黏度穩定性、密 封塗佈性、黏接強度、顯示狀態、高溫高濕可靠性以及間 隙精度均優異(實例1〜實例1 1 )。 另一方面’僅使用軟化點為50t:〜90°C的多元酚硬化 劑的情形(比較例1)時,黏接強度低,顯示狀態及高溫 高濕可靠性與實例1〜實例11相比較稍差。另外,僅使用 炫點為23 C以下的二級多元硫醇硬化劑的情形(比較例2 ) 時,黏度穩定性、黏接強度、顯示狀態、高溫高濕可靠性 均遜於實例1〜實例11。進而,僅使用熔點為60。(:〜180°C 的級多元胺硬化劑的情形(比較例3)時,黏度穩定性 低,密封塗佈性、間隙精度下降。 另外’即便是使用選自由軟化點為5〇。〇〜90°C的多元 紛硬化劑、溶點為23°C以下的二級多元硫醇硬化劑、及溶 點為60 C〜180°C的一級多元胺硬化劑所組成的組群中的 雨種以上的硬化劑的情形,於相對於液晶密封劑1〇〇質量 份而其量小於4質量份的情形(比較例5)時,黏接強度、 顯开狀態及高溫高濕可靠性下降。另一方面,於相對於液 晶密封劑10 〇質量份而上述硬化劑的量超過3 〇質量份的情 形(比較例4)時,黏度穩定性、黏接強度、顯示狀態、 高溫高濕可靠性下降,間隙精度差。 進而,於使用-級多元硫醇硬化劑代替二級多元硫醇 201242986 硬化劑的情形(比較例6及比較例8)時,黏度穩定性下 降,黏接強度、顯示狀態、高溫高濕可靠性亦下降。另外, 於酚硬化劑的軟化點超過90°C的情形(比較例7)時,黏 接強度下降,顯示狀態及高溫高濕可靠性亦下降。 [產業上之可利用性] 本發明的液晶密封劑由於來源於硬化劑的粉體成分 少,因此於塗佈液晶密封劑而形成細的密封構件時,亦可 使塗佈穩定性良好。另外,由於黏接強度或黏度穩定性亦 優異,故可提供顯示可靠性優異的液晶面板。因此,本發 明的液晶密封劑適於製造液晶顯示面板。 【圖式簡單說明】 jttfi 〇 #、》、 【主要元件符號說明】 益。 41201242986a X According to Tables 1 and 2, it is known that a secondary polythiol hardener selected from a polyphenol curable agent having a softening point of 5 (^c to 90 ° C, a melting point of 23 or less, and a bright point) are used. In the case of two or more kinds of hardeners in a group consisting of 60 ° C to 18 (TC primary polyamine hardener), viscosity stability, seal coatability, adhesion strength, display state, high temperature and high humidity Both reliability and gap precision are excellent (Examples 1 to 1 1 ). On the other hand, when only a polyphenol hardener having a softening point of 50 t: to 90 ° C (Comparative Example 1) is used, the bonding strength is low. The display state and the high-temperature and high-humidity reliability were slightly inferior to those of Examples 1 to 11. In addition, when only the second-order polythiol hardener having a bright spot of 23 C or less (Comparative Example 2) was used, the viscosity stability, The bonding strength, the display state, and the high-temperature and high-humidity reliability were all inferior to those of Examples 1 to 11. Further, when only the melting point was 60. (: 180 ° C grade polyamine curing agent (Comparative Example 3), Low viscosity stability, poor sealability and gap accuracy. The free softening point is selected to be 5 〇. 多元~90 °C multi-component hardener, secondary polythiol hardener with a melting point below 23 ° C, and primary polyamine hardening with a melting point of 60 C~180 ° C In the case of the hardener of the rain or more in the group of the agent, when the amount is less than 4 parts by mass relative to 1 part by mass of the liquid crystal sealing agent (Comparative Example 5), the bonding strength and the opening are improved. In the case of the case where the amount of the hardener exceeds 3 〇 by mass (Comparative Example 4) with respect to 10 parts by mass of the liquid crystal sealant, viscosity stability and adhesion strength are obtained. The display state, the high temperature and high humidity reliability are lowered, and the gap precision is poor. Further, when the -stage polythiol hardener is used instead of the second-order polythiol 201242986 hardener (Comparative Example 6 and Comparative Example 8), the viscosity is stable. The adhesion is lowered, the bonding strength, the display state, and the high-temperature and high-humidity reliability are also lowered. In addition, when the softening point of the phenol curing agent exceeds 90 ° C (Comparative Example 7), the bonding strength is lowered, and the display state and high temperature are high. Wet reliability also declined. [Industry UTILITY] Since the liquid crystal sealing agent of the present invention has a small amount of a powder component derived from a curing agent, when a liquid crystal sealing agent is applied to form a fine sealing member, coating stability can be improved. It is also excellent in strength or viscosity stability, so that a liquid crystal panel excellent in display reliability can be provided. Therefore, the liquid crystal sealing agent of the present invention is suitable for manufacturing a liquid crystal display panel. [Simplified illustration] jttfi 〇#, 》, [main component symbol Description] Benefit. 41
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JP6370382B2 (en) * | 2014-07-24 | 2018-08-08 | 三井化学株式会社 | Liquid crystal sealant and liquid crystal display panel manufacturing method |
WO2017038611A1 (en) * | 2015-09-02 | 2017-03-09 | 積水化学工業株式会社 | Sealant for liquid crystal display element, vertical conduction material, and liquid crystal display element |
JP6554040B2 (en) * | 2016-01-25 | 2019-07-31 | 三井化学株式会社 | Liquid crystal display panel and method for manufacturing liquid crystal display panel |
JP2018022052A (en) * | 2016-08-04 | 2018-02-08 | 日本化薬株式会社 | Liquid crystal sealant and liquid crystal display cell using the same |
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