JPH08248218A - Production of color filter - Google Patents

Production of color filter

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Publication number
JPH08248218A
JPH08248218A JP4999395A JP4999395A JPH08248218A JP H08248218 A JPH08248218 A JP H08248218A JP 4999395 A JP4999395 A JP 4999395A JP 4999395 A JP4999395 A JP 4999395A JP H08248218 A JPH08248218 A JP H08248218A
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JP
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Patent type
Prior art keywords
color filter
adhesive
formed
color filters
light shielding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP4999395A
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Japanese (ja)
Other versions
JP3064855B2 (en )
Inventor
Noboru Mihashi
Hironobu Suda
登 三橋
廣伸 須田
Original Assignee
Toppan Printing Co Ltd
凸版印刷株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Abstract

PURPOSE: To prevent the drop-out defect and mispositioning by adhesion of foreign matter by adhering a transfer sheet and a member to be transferred right after dropping of a non-solvent type adhesive and forming the parts where light shielding films and color filter overlap as spacers.
CONSTITUTION: The color filters 3 of plural colors are formed to prescribed pattern shapes by a pigment dispersion method, etc., on a transfer base 1 consisting of, for example, a metallic sheet. The light shielding films 4 consisting of resins dispersed with black pigments are so formed in the spacings between the color filters 3 in such a manner that the peripheral parts thereof have overlaps with the edges of the color filters 3. The non-solvent type adhesive 5 in a liquid form consisting essentially of, for example, acryl, is dropped onto the surface formed with the color filters 3 and a transparent glass substrate (member to be transferred) 6 is put thereon from above and both are press bonded, by which the adhesive 5 is uniformly spread at ordinary temp. At this time, the projecting parts A generated by the overlaps of the light shielding films 4 and the color filters 3 act as the spacers and an adhesive layer having a uniform film thickness is formed. The transfer base 1 is peeled after this adhesive layer is cured by UV rays.
COPYRIGHT: (C)1996,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は、カラー液晶表示装置等に内蔵されるカラーフィルターの製造方法に関する。 The present invention relates to a process for producing a color filter which is incorporated in a color liquid crystal display device or the like.

【0002】 [0002]

【従来の技術】転写ベース、例えば金属板上にパターン層を形成した転写シートから透明基板、例えばガラス基板上にカラーフィルター層を転写形成するカラーフィルターの製造方法においては、従来、溶剤型の紫外線硬化型接着剤を介し、転写ベース上のパターン層を透明基板上に転写していた。 BACKGROUND ART transcription-based, for example, a transparent substrate from the transfer sheet to form a patterned layer on a metal plate, in the example method of manufacturing a color filter of transferring a color filter layer on a glass substrate, a conventional, solvent-UV via a curable adhesive, it was transferred a pattern layer on the transfer base on a transparent substrate. すなわち、前記接着剤を転写シート、透明基板双方の対向面に塗布し、接着剤が半乾燥状態になった段階で転写シート及び透明基板を密着してから紫外線照射を行い、接着剤を硬化させることでパターン層と透明基板を接着し、しかる後転写ベースを剥離するという方法である。 In other words, the transfer adhesive sheet was applied to the opposite surface of the transparent substrate both adhesive with ultraviolet radiation from the contact transfer sheet and the transparent substrate at the stage became semi-dry state, the adhesive is cured bonding the pattern layer and the transparent substrate by a method that peeled thereafter transfer base. しかしこのような方法では、異物が沈降、付着しやすい接着剤塗布面を長時間外気に接触させねばならず、外気中の数μmレベルの異物が接着剤塗布面上に多数付着し、この異物が原因となってカラーフィルターに白抜け不良が発生し、カラーフィルターを製造する上で収率が悪化していた。 However, in this method, the foreign matter settling, not must long in contact with the outside air adheres easily adhesive coating surface, several μm level of foreign substances in the outside air adheres number on the adhesive coated surface, the foreign matter There white spot defect occurs in the color filter causing the yield in manufacturing a color filter had deteriorated.

【0003】また、従来は接着剤が半乾燥状態になるため、転写シート及び透明基板を密着する前に、両者を10 [0003] Conventionally the adhesive is semi-dry state, prior to contact of the transfer sheet and the transparent substrate, both 10
0℃に加熱し接着剤を軟化させた上で転写していた。 Was heated to 0 ℃ was transferred after having to soften the adhesive. ガラス、および金属板の熱膨張係数はほぼ同じであるが、 Glass, and the thermal expansion coefficient of the metal plate is substantially the same,
膨張する速度は異なるため、この加熱によりガラス基板側と転写シートの金属板との間に例えば80mm当たり-1〜 Speed ​​different for inflating, for example 80mm per -1 between the metal plate of the transfer sheet and the glass substrate side by the heating
-8μmの寸法差が生じていた。 Dimensional difference of -8μm has occurred. このためカラーフィルターのパターンのトータルピッチ誤差が大きくなり、液晶パネル組立ての工程でTFT回路の形成された対向パネルとの貼り合わせ精度が許容値を超えるなどの問題が生じていた。 Therefore total pitch error of the pattern of the color filter increases, problems such as bonding precision between opposing panels formed of TFT circuits in the liquid crystal panel assembly process exceeds the tolerance has occurred.

【0004】 [0004]

【発明が解決しようとする課題】本発明は、カラーフィルター製造の際に起こる上記のような異物の付着による白抜け不良や、熱膨張の差異による寸法誤差などの問題点を解消することを目的とする。 The present invention is to challenge it to solve the above-aims to eliminate defects or white spots due to adhesion of foreign materials as described above which occurs when the color filter manufacturing, the problems such as dimensional error due to the difference in thermal expansion to.

【0005】 [0005]

【課題を解決するための手段】本発明は、転写ベース上に少なくとも複数色のカラーフィルターを所定のパターン状に形成し、その間隙に樹脂ブラックの遮光膜を周辺部がカラーフィルターと重なるように形成し、液状の無溶剤型接着剤を介して、被転写体である透明ガラス基板を押圧し、前記接着剤を延展することにより、前記の遮光膜とカラーフィルターの重なりによって生じる突出部をスペーサーとする接着剤層となし、しかる後に接着剤層の硬化処置と転写ベースの剥離を行うことを特徴とするカラーフィルターの製造方法である。 SUMMARY OF THE INVENTION The present invention is such that at least a plurality of color filters formed in a predetermined pattern, the peripheral portion of the light shielding film of the resin black in the gap overlaps a color filter on a transfer base formed, via a solvent-free liquid adhesive, pressing the transparent glass substrate is a transfer object, by spreading the adhesive, the spacer protrusions caused by the overlap of the light-shielding film and a color filter to the adhesive layer and without a color filter manufacturing method which is characterized in that the curing treatment and transcription-based separation of the adhesive layer thereafter. また本発明は、 Further, the present invention is,
前記の方法により製造されてなる液晶表示装置用カラーフィルターである。 A liquid crystal display device for color filter comprising manufactured by the method.

【0006】以下に、図面を用いて具体的に説明する。 [0006] In the following, it will be described in detail with reference to the accompanying drawings.
まず図1(a)に示すように、例えば金属板からなる転写ベース1上に少なくとも複数色のカラーフィルター3 First, FIG. 1 (a), the example of at least a plurality of color filters 3 of on the transfer base 1 made of a metal plate
を、顔料分散法、印刷法など任意の方法により所定のパターン状に形成する。 A pigment dispersion method, is formed into a predetermined pattern by any method such as printing method. 次いで、それらのカラーフィルター3の間隙に黒色顔料を分散した樹脂よりなる遮光膜4 Then, the light-shielding film 4 made of dispersed their black pigment in the gap of the color filter 3 resin
を、その周辺部がカラーフィルター3の縁部と重なりをもつよう形成する。 And its peripheral portion is formed to have an overlap with the edge of the color filter 3. これにより遮光膜4とカラーフィルター3の重なる部分には突出部Aが生じる。 Thus the protruding portion A occurs in the overlapping portions of the light shielding film 4 and the color filter 3.

【0007】ここで図1(b)に示すように、例えばアクリルを主成分とする液状の無溶剤型接着剤5を上記のようにして形成した転写シートのカラーフィルター3形成面上に滴下し、この上から図1(c)のように被転写体である透明ガラス基板6を被せて、例えばロールプレス機で圧着し、接着剤5を常温下で均一に延展する。 [0007] Here, as shown in FIG. 1 (b), for example, a solvent-free adhesive 5 a liquid composed mainly of acrylic dropped on the color filter 3 formed surface of the transfer sheet formed in the manner described above from thereon is covered with a transparent glass substrate 6 is transferred object as shown in FIG. 1 (c), the example was pressed at a roll press machine, uniformly spread over the adhesive 5 at room temperature. このとき、前記の遮光膜4とカラーフィルター3の重なりによって生じた突出部Aがスペーサーとして働き、カラーフィルターとガラス基板との距離が一定となることで、膜厚の均一な接着剤5層が形成される。 At this time, serves as a protruding portion A spacer caused by the overlapping of the light-shielding film 4 and the color filter 3 of, that the distance between the color filter and the glass substrate becomes constant, uniform adhesive 5 layer thickness It is formed. しかる後に図1(d)のように紫外線照射による接着剤5層の硬化処置、続いて図1(e)のように転写ベース1の剥離を行うことで被転写体上にカラーフィルター3層が良好に転写形成されたカラーフィルターを得るものである。 Curing treatment of the adhesive 5 layer by ultraviolet irradiation as in FIG thereafter 1 (d), followed by color filter 3 layer to the transfer member by performing the separation of the transfer base 1 as shown in FIG. 1 (e) is it is intended to obtain a color filter which is satisfactorily transferred and formed.

【0008】 [0008]

【作用】無溶剤型接着剤5を用い、滴下後すぐに転写シートと被転写体を接着するため、異物付着に起因する白抜け不良の発生を防止することができる。 [Action] Using 5 solventless adhesives, for bonding dropwise and after immediate transfer sheet material to be transferred, it is possible to prevent the white spot defective due to foreign matter adhesion. また、遮光膜4とカラーフィルター3の重なりにより生じる突出部分がスペーサーの役割を果たし、接着層の膜厚が均一になる。 Further, the protruding portion caused by the overlapping of the light-shielding film 4 and the color filter 3 plays the role of a spacer, the thickness of the adhesive layer is uniform. また、常温下の転写となるため加熱速度の違いや熱膨張率の相違による位置ずれが生じない。 Further, positional deviation due to the difference in differences and the thermal expansion coefficient of the heating rate for the transfer of normal temperature does not occur.

【0009】 [0009]

【実施例】まず、ニッケル−鉄合金(42合金)よりなる厚さ0.11mmの転写ベース1上に6重量%のポリビニルアルコールを5〜10μmの厚さにディップコーター方式にて塗布形成した後、150℃の雰囲気で乾燥して、剥離層2としてのポリビニルアルコール層を得た。 [Example] First, a nickel - after applying formed by a dip coater method to a thickness of the iron alloy (42 alloy) thickness 0.11mm polyvinylalcohol transfer base 1 onto a 6 weight percent consisting of 5 to 10 [mu] m, and dried in an atmosphere of 0.99 ° C., to obtain a polyvinyl alcohol layer of the release layer 2. 上記剥離層2上に、下記組成の赤色アクリル系顔料分散感光材をリバースコーターで塗布し、乾燥後所定パターンを有するパターンマスクを介して活性光を照射するパターン露光を行った後、アルカリ現像液で現像し、水洗後150℃ On the release layer 2, after the pattern exposure of a red acrylic pigment dispersion photosensitive material having the following composition was coated by a reverse coater, irradiated with active light through a pattern mask having a dried predetermined pattern, an alkali developer in developing, washed with water 0.99 ° C.
で5分間乾燥した。 In was dried for 5 minutes. 以下同様にして緑色、青色、黒色を所定の位置にパターン露光、現像しカラーフィルター3 Green In the same manner, the pattern exposure blue, black and in place, developed color filter 3
層を形成した。 To form a layer.

【0010】ここでアクリル系顔料分散感光材の組成は、以下の処方による。 [0010] Here, the composition of the acrylic pigment dispersion photosensitive material, by the following formulation. A;顔料10重量部。 A; pigment 10 parts by weight. 材料はいずれもカラーインデックス(CI)ナンバーにて示す。 None of the material is shown in the Color Index (CI) number. 内訳 赤色;CI赤色顔料177 緑色;CI緑色顔料36、CI黄色顔料139 青色;CI青色顔料15 黒色;CI黒色顔料7 B;以下の組成からなるアニオン性アクリル系共重合体 Breakdown Red; CI red pigment 177 green; CI green pigment 36, CI yellow pigment 139 blue; CI blue pigment 15 black; CI black pigments 7 B; the following composition anionic acrylic copolymer
10重量部 メチルメタクリレート 2重量部 メタクリル酸 1重量部 ヒドロキシメタクリレート 2重量部 ブチルメタクリレート 2重量部 シクロヘキシルアクリレート3重量部 C;多官能アクリルモノマー(東亜合成(株)製、商品名「アロニックスM−300」) 10 parts by weight of methyl methacrylate 2 parts by weight of methacrylic acid 1 part by weight hydroxy methacrylate 2 parts by weight of butyl methacrylate and 2 parts by weight cyclohexyl acrylate 3 parts by weight C; polyfunctional acrylic monomer (Toa Gosei Co., Ltd., trade name "Aronix M-300" )
10重量部 D;光重合開始剤(チバガイギー社製、商品名「イルガギュアー907」)0.5重量部 E;有機溶剤 120重量部 以上A〜Eを充分混合練肉してなる光重合型顔料分散感光材を準備した。 10 parts by weight of D; photopolymerization initiator (manufactured by Ciba-Geigy, trade name "Irugagyua 907") 0.5 parts by weight E; the organic solvent 120 parts by weight or more A~E formed by thoroughly mixing kneaded photopolymerizable pigment dispersion photosensitive material It was prepared.

【0011】一方、液体の無溶剤型接着剤5(ダイマックス・コーポレイション製、商品名「マルチキュア」) [0011] On the other hand, solvent-free adhesive of the liquid 5 (Dymax Corporation, trade name "multi-cure")
を、上記カラーフィルター3層を形成した転写シート上のカラーフィルター3層形成面上に滴下した。 Was added dropwise to the color filter 3 layer formed plane on the transfer sheet formed the color filter 3 layers.

【0012】続いて滴下直後に、滴下した接着剤5の上から被転写体である透明ガラス基板6の接着面を被せ、 [0012] Immediately followed dropwise, covered the adhesive surface of the transparent glass substrate 6 is transferred object from the top of the dropped adhesive 5,
嫌気性雰囲気にてロールプレス機にて1〜5kg/cm 2の力で圧着し、接着剤5を均一に転写シートとガラス基板6の間の空間に広がらせた。 Crimp with a force of 1-5 kg / cm 2 by a roll press machine at an anaerobic atmosphere to spread the space between the uniform transfer of the adhesive 5 sheet and the glass substrate 6. このとき遮光膜4とカラーフィルター3の重なりで生じた突起部Aがスペーサーの役割を果たすことで、カラーフィルター3とガラス基板6との距離は、両者が対向する領域で一定となる。 The distance of the protrusions A caused by overlapping of the light-shielding film 4 and the color filter 3 this time in the role of a spacer, a color filter 3 and the glass substrate 6 is constant in the region where both faces. 因みに本例ではカラーフィルター3の厚さは1.3μmとなっており、突起部Aのカラーフィルター3からの突起量は、等しく0.4μmとなっている。 Incidentally thickness in this example the color filter 3 has a 1.3 .mu.m, the amount of protrusion from the color filter 3 of the protrusions A has a equal 0.4 .mu.m. これによりカラーフィルター3とガラス基板6との間に広がった接着層の膜厚は均一化されている。 Thus the thickness of the spread adhesive layer between the color filter 3 and the glass substrate 6 is made uniform.

【0013】次いで、被転写ガラス基板6側から紫外線を100〜数1000mJ/cm 2照射し接着剤の硬化を行ってから、さらに80〜90℃、30分の条件でホットプレート上で加熱して硬化を完全にした。 [0013] Then, after performing the curing of the 100 number 1000 mJ / cm 2 irradiated to the adhesive with ultraviolet light from the transfer glass substrate 6 side, further 80-90 ° C., and heated on a hot plate at 30 minutes of conditions It was completely cured. しかる後、転写ベース1の金属板を剥離層2と共に剥離した。 Thereafter, it was released with the release layer 2 the metal plate of the transfer base 1. この結果、白抜けや気泡の発生なしに、被転写体上にカラーフィルター3層および遮光膜4が良好に転写形成された。 As a result, without the occurrence of white spots and bubbles, color filters 3-layer and the light-shielding film 4 is satisfactorily transferred formed on the transfer member.

【0014】 [0014]

【発明の効果】上記のように、本発明のカラーフィルターの製造方法では接着剤5の滴下後すぐに転写シートと被転写体を接着するため、従来法で生じていた異物付着に起因する白抜け不良の発生を防止することができる。 As described above, according to the present invention, since the color filter manufacturing method of the present invention for bonding the transfer sheet immediately after the dropwise addition of the adhesive 5 the transfer receiving material, white due to occur have foreign matter adhered by the conventional method it is possible to prevent the occurrence of defective spots.
また、遮光膜4とカラーフィルター3の重なり部分がスペーサーの役割を果たし、接着層の膜厚が均一になる効果がある。 Further, overlapping portions of the light shielding film 4 and the color filter 3 plays the role of a spacer, there is a film thickness becomes uniform effect of the adhesive layer. また、常温で転写を行えるため、従来の加熱転写に比べ寸法安定性に優れる。 Also, since that allows transcription in normal temperature, excellent dimensional stability compared to conventional thermal transfer. 以下に、従来方式と比較した表を示す。 Hereinafter, a table comparing the conventional system.

【0015】 [0015]

【表1】 [Table 1]

【0016】 [0016]

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】(a)〜(e)は、本発明によるカラーフィルターの製造工程の要部の一例を工程順に示す説明図である。 [1] (a) ~ (e) are explanatory views showing an example of a main part of a color filter manufacturing process according to the present invention in order of steps.

【符号の説明】 1 転写ベース 2 剥離層 3 カラーフィルター 4 遮光膜 5 接着剤 6 ガラス基板 [EXPLANATION OF SYMBOLS] 1 transfer base 2 release layer 3 color filter 4 shading film 5 adhesive 6 glass substrate

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】転写ベース上に少なくとも複数色のカラーフィルターを所定のパターン状に形成し、その間隙に樹脂ブラックの遮光膜を周辺部がカラーフィルターと重なるように形成し、液状の無溶剤型接着剤を介して、被転写体である透明ガラス基板を押圧し、前記接着剤を延展することにより、前記の遮光膜とカラーフィルターの重なりによって生じる突出部をスペーサーとする接着剤層となし、しかる後に接着剤層の硬化処置と転写ベースの剥離を行うことを特徴とするカラーフィルターの製造方法。 1. A at least a plurality of color filters on a transfer base formed in a predetermined pattern, a light shielding film of the resin black periphery is formed so as to overlap with the color filter in the gap, solvent-free liquid through an adhesive, pressing the transparent glass substrate is a transfer object, said by spreading the adhesive, the light shielding film and the color filter adhesive layer and without to the spacer protrusions caused by overlapping, method of manufacturing a color filter which is characterized in that the separation of cured treatment and transcription-based adhesive layer thereafter.
JP4999395A 1995-03-09 1995-03-09 Method of producing a color filter Expired - Fee Related JP3064855B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4999395A JP3064855B2 (en) 1995-03-09 1995-03-09 Method of producing a color filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4999395A JP3064855B2 (en) 1995-03-09 1995-03-09 Method of producing a color filter

Publications (2)

Publication Number Publication Date
JPH08248218A true true JPH08248218A (en) 1996-09-27
JP3064855B2 JP3064855B2 (en) 2000-07-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002258266A (en) * 2001-03-06 2002-09-11 Toppan Printing Co Ltd Method of manufacturing electrode substrate for color liquid crystal display device and color liquid crystal display device
US7887663B2 (en) 2000-10-12 2011-02-15 Sanyo Electric Co., Ltd. Method for forming color filter, method for forming light emitting element layer, method for manufacturing color display device comprising them, or color display device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7887663B2 (en) 2000-10-12 2011-02-15 Sanyo Electric Co., Ltd. Method for forming color filter, method for forming light emitting element layer, method for manufacturing color display device comprising them, or color display device
US8192579B2 (en) 2000-10-12 2012-06-05 Sanyo Electric Co., Ltd. Method for forming color filter, method for forming light emitting element layer, method for manufacturing color display device comprising them, or color display device
US8920588B2 (en) 2000-10-12 2014-12-30 Sanyo Electric Co., Ltd. Method for forming color filter, method for forming light emitting element layer, method for manufacturing color display device comprising them, or color display device
JP2002258266A (en) * 2001-03-06 2002-09-11 Toppan Printing Co Ltd Method of manufacturing electrode substrate for color liquid crystal display device and color liquid crystal display device

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