JPH09230131A - Color filter and its production - Google Patents
Color filter and its productionInfo
- Publication number
- JPH09230131A JPH09230131A JP8091698A JP9169896A JPH09230131A JP H09230131 A JPH09230131 A JP H09230131A JP 8091698 A JP8091698 A JP 8091698A JP 9169896 A JP9169896 A JP 9169896A JP H09230131 A JPH09230131 A JP H09230131A
- Authority
- JP
- Japan
- Prior art keywords
- fine particles
- pigment
- colored fine
- color filter
- mixed
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000000049 pigment Substances 0.000 claims abstract description 67
- 239000000843 powder Substances 0.000 claims abstract description 65
- 238000000576 coating method Methods 0.000 claims abstract description 54
- 239000011248 coating agent Substances 0.000 claims abstract description 53
- 239000011230 binding agent Substances 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000003094 microcapsule Substances 0.000 claims abstract description 28
- 239000002245 particle Substances 0.000 claims abstract description 18
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 6
- 229910052735 hafnium Inorganic materials 0.000 claims abstract description 5
- 239000002243 precursor Substances 0.000 claims abstract description 5
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 5
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 5
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 5
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 5
- 229910052790 beryllium Inorganic materials 0.000 claims abstract description 4
- 229910052792 caesium Inorganic materials 0.000 claims abstract description 4
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 4
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 4
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 4
- 229910052701 rubidium Inorganic materials 0.000 claims abstract description 3
- 239000010419 fine particle Substances 0.000 claims description 80
- 239000011347 resin Substances 0.000 claims description 39
- 229920005989 resin Polymers 0.000 claims description 39
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 18
- 150000004703 alkoxides Chemical class 0.000 claims description 17
- 239000011259 mixed solution Substances 0.000 claims description 12
- 229910010272 inorganic material Inorganic materials 0.000 claims description 9
- 239000011147 inorganic material Substances 0.000 claims description 9
- 238000004898 kneading Methods 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229910052745 lead Inorganic materials 0.000 claims description 4
- 229910052718 tin Inorganic materials 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- 229910052691 Erbium Inorganic materials 0.000 claims description 3
- 229910052693 Europium Inorganic materials 0.000 claims description 3
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 3
- 229910052689 Holmium Inorganic materials 0.000 claims description 3
- 229910052765 Lutetium Inorganic materials 0.000 claims description 3
- 229910052779 Neodymium Inorganic materials 0.000 claims description 3
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 3
- 229910052772 Samarium Inorganic materials 0.000 claims description 3
- 229910052771 Terbium Inorganic materials 0.000 claims description 3
- 229910052775 Thulium Inorganic materials 0.000 claims description 3
- 229910052785 arsenic Inorganic materials 0.000 claims description 3
- 229910052793 cadmium Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052733 gallium Inorganic materials 0.000 claims description 3
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 229910052711 selenium Inorganic materials 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- 229910052714 tellurium Inorganic materials 0.000 claims description 3
- 229910052716 thallium Inorganic materials 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000011882 ultra-fine particle Substances 0.000 claims description 3
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 2
- 229910052740 iodine Inorganic materials 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 41
- 239000003086 colorant Substances 0.000 abstract description 10
- 229910052749 magnesium Inorganic materials 0.000 abstract description 4
- 229910052791 calcium Inorganic materials 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 description 20
- 239000010936 titanium Substances 0.000 description 13
- 239000000976 ink Substances 0.000 description 12
- 230000000704 physical effect Effects 0.000 description 8
- 239000002994 raw material Substances 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 239000001055 blue pigment Substances 0.000 description 5
- 238000012856 packing Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 239000001056 green pigment Substances 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000001054 red pigment Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- ONIKNECPXCLUHT-UHFFFAOYSA-N 2-chlorobenzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1Cl ONIKNECPXCLUHT-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 108091034120 Epstein–Barr virus-encoded small RNA Proteins 0.000 description 1
- -1 M o Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004106 butoxy group Chemical group [*]OC([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Landscapes
- Optical Filters (AREA)
- Liquid Crystal (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paints Or Removers (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、液晶表示装置、
ＣＲＴなどのカラーディスプレイの主要構成部材の一つ
であるカラーフィルタに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device,
The present invention relates to a color filter which is one of the main constituent members of a color display such as a CRT.
【０００２】[0002]
【従来の技術】カラーフィルタとしての必要な分光特性
が得られる赤（Ｒ）、緑（Ｇ）、青（Ｂ）などの各色の
顔料微粉末を透明な樹脂結合材に、分光透過率、色濃度
などの光学特性を満足するのに必要な量だけ混練し、均
一に分散させて、各色の塗布材又はインキをそれぞれ調
製する。そして、被塗布物にストライプ、モザイクなど
の所要パターン状に一定膜厚で塗布材を塗布し硬化させ
て又はインキを印刷して塗膜を形成し、Ｒ、Ｇ、Ｂの各
色よりなるカラーフィルタを製造する。図４に、従来の
カラーフィルタの拡大断面図を示す。図４に示すよう
に、従来のカラーフィルタ１１は、顔料超微粉末１２を
樹脂結合材１３に分散させただけの構造を有している。2. Description of the Related Art Pigment fine powders of respective colors such as red (R), green (G), and blue (B), which can obtain a necessary spectral characteristic as a color filter, are formed on a transparent resin binder with a spectral transmittance and a color. The coating materials or inks of the respective colors are prepared by kneading and uniformly dispersing them in an amount necessary to satisfy optical characteristics such as density. Then, a coating material is applied to an object to be coated in a predetermined pattern such as stripes or mosaics with a constant film thickness and cured, or ink is printed to form a coating film, and a color filter of each color of R, G and B is formed. To manufacture. FIG. 4 shows an enlarged sectional view of a conventional color filter. As shown in FIG. 4, the conventional color filter 11 has a structure in which the ultrafine pigment powder 12 is simply dispersed in the resin binder 13.
【０００３】塗膜形成の方法としては、一般に、顔料分
散（フォトリソ）法、印刷法、電着法などが用いられ、
それぞれに適した特性と作業性になるように、顔料の種
類、樹脂結合材に対する顔料の混合量、粘度などを選択
した塗布材、インキ、電着液などが使用されている。As a method for forming a coating film, a pigment dispersion (photolithography) method, a printing method, an electrodeposition method, etc. are generally used.
A coating material, an ink, an electrodeposition liquid, etc., in which the kind of pigment, the amount of the pigment mixed with the resin binder, the viscosity, etc. are selected so as to have characteristics and workability suitable for each, are used.
【０００４】[0004]
【発明が解決しようとする課題】ところが、顔料は、そ
れぞれの色ごとに種類が異なり、材料組成、粒子形状、
大きさ、粒度分布、表面状態、嵩密度などに差がある。
しかも、同様な光学特性を得るための、結合材に対する
顔料の必要混入量も色によって異なり、例えばＲの場
合、Ｇ、Ｂよりも体積比では２倍近くも顔料微粉末を混
入しなければならない。However, there are different types of pigments for each color, and the material composition, particle shape,
There are differences in size, particle size distribution, surface condition, bulk density, etc.
Moreover, the required amount of the pigment mixed in the binder to obtain the same optical characteristics differs depending on the color. For example, in the case of R, the pigment fine powder must be mixed in a volume ratio nearly twice that of G and B. .
【０００５】また、顔料は、一般には０．１μｍ以下の
微粉末として使用され、必要混入量が多いと、完全な均
一分散が難しく、凝集したままの部分が残り易くなる。
そして、色ごとに均一分散のための条件が異なり、ま
た、得られた塗布材又はインキの均一分散性、粘度、チ
クソ性、曵糸性などの物性も、色によって大きな差を生
じる。Further, the pigment is generally used as a fine powder having a particle size of 0.1 μm or less, and when the required amount of the pigment is large, it is difficult to completely uniformly disperse the pigment, and the agglomerated portion is likely to remain.
The conditions for uniform dispersion are different for each color, and the physical properties such as uniform dispersibility, viscosity, thixotropy and spinnability of the obtained coating material or ink also greatly differ depending on the color.
【０００６】これらの結果、同一の塗膜形成条件では、
色ごとに作業性が異なり、得られた各色の塗膜間におい
て均質性、表面状態などにも差が生じ、特性や製品歩留
りの点でも種々の問題があった。As a result, under the same coating film forming conditions,
Workability is different for each color, and there is a difference in homogeneity, surface condition, etc. between the obtained coating films of each color, and there are various problems in terms of characteristics and product yield.
【０００７】この発明は、以上のような事情に鑑みてな
されたものであり、同一の塗膜形成条件で、色の如何に
よらず作業性が同等であり、得られた各色の塗膜間にお
いて均質性、表面状態などが変化せず、特性や製品歩留
りの点での問題も無いカラーフィルタ及びその製造方法
を提供することを目的とする。The present invention has been made in view of the above circumstances, has the same workability regardless of the color under the same coating film forming conditions, and obtains between the coating films of the respective colors obtained. It is an object of the present invention to provide a color filter in which the homogeneity and surface condition do not change, and there is no problem in terms of characteristics and product yield, and a manufacturing method thereof.
【０００８】[0008]
【課題を解決するための手段】請求項１に係る発明は、
無機質材料で形成された球状をなすマイクロカプセル壁
によって顔料超微粉末を被覆した着色微粒子を透明結合
材に分散させることにより、カラーフィルタを形成した
ことを要旨とする。The invention according to claim 1 is
The gist is that a color filter is formed by dispersing colored fine particles coated with ultrafine pigment powder by a spherical microcapsule wall formed of an inorganic material in a transparent binder.
【０００９】請求項２に係る発明は、無機質材料で形成
された球状をなすマイクロカプセル壁によって顔料超微
粉末を被覆した着色微粒子を、前記顔料超微粉末と同一
の顔料超微粉末と共に透明結合材にそれぞれ分散させる
ことにより、カラーフィルタを形成したことを要旨とす
る。According to a second aspect of the present invention, colored fine particles obtained by coating the pigment ultrafine powder with spherical microcapsule walls formed of an inorganic material are transparently bonded together with the same pigment ultrafine powder as the pigment ultrafine powder. The gist of the invention is to form color filters by dispersing them in materials.
【００１０】各色の顔料超微粉末をマイクロカプセル壁
によって被覆した球状の着色微粒子を着色剤として用い
ることにより、着色微粒子を透明結合材に混合する際又
は着色微粒子を顔料超微粉末と共に透明結合材に混合す
る際に流動性が良くなり、着色微粒子を容易に均一に分
散させることができる。しかも、着色微粒子は球状であ
るために、最密充填に近い状態になり、単に顔料微粉末
を透明樹脂結合材に混練した場合よりも膜厚が薄くて緻
密な塗膜が形成され、光学特性も向上する。By using the spherical colored fine particles obtained by coating the pigment ultrafine powder of each color with the microcapsule wall as a colorant, when the colored fine particles are mixed with the transparent binder or the colored fine particles are mixed with the pigment ultrafine powder, the transparent binder is added. The fluidity is improved when mixed in, and the colored fine particles can be easily and uniformly dispersed. Moreover, since the colored fine particles are spherical, they are in a state close to the closest packing, and a finer film thickness and a finer coating film are formed than when the pigment fine powder is simply kneaded with the transparent resin binder. Also improves.
【００１１】さらに詳しく説明すると、同一作業条件
で、Ｒ、Ｇ、Ｂ各色の塗膜を均質に形成するためには、
各色の塗布材又はインキの物性を揃えればよい。これに
は、透明結合材に混入するそれぞれの着色剤の表面状
態、形状、大きさ、嵩密度などの物性を揃えるのが有効
である。この１つの手段として、各色顔料の超微粉末を
内部に充填、包含した球状の着色微粒子を形成すること
を試みることとした。そして、顔料超微粉末をマイクロ
カプセル壁で被覆して着色微粒子を形成することによ
り、着色微粒子の粒径が揃えられ流動性が改善された。
この球状の着色微粒子の表面状態、形状、大きさ、嵩密
度などの物性が各色で揃うために、着色微粒子を透明結
合材と混合して塗膜を形成する際の塗布又は印刷などの
作業性が各色とも同じになる。また、塗布材又はインキ
としての物性が類似するので、各色とも同一作業条件で
揃った塗膜が得られることとなる。このため、Ｒ、Ｇ、
Ｂを同時に印刷し平坦化する場合などに特に有効であ
る。More specifically, in order to uniformly form coating films of R, G and B colors under the same working conditions,
The physical properties of the coating material or ink of each color may be the same. For this purpose, it is effective to make the physical properties such as the surface condition, shape, size and bulk density of each colorant mixed in the transparent binder. As one means for this, it was decided to try to form spherical colored fine particles in which the ultrafine powder of each color pigment was filled and included. Then, by coating the ultrafine pigment powder with the microcapsule wall to form colored fine particles, the particle diameter of the colored fine particles was made uniform and the fluidity was improved.
Since the physical properties such as the surface condition, shape, size, and bulk density of the spherical colored fine particles are uniform for each color, workability such as coating or printing when the colored fine particles are mixed with a transparent binder to form a coating film Is the same for each color. Further, since the physical properties of the coating material or the ink are similar, a uniform coating film can be obtained for each color under the same working conditions. Therefore, R, G,
It is particularly effective when B is printed at the same time and flattened.
【００１２】また、カラーフィルタの発色に必要十分な
量の顔料超微粉末の全量を球状の着色微粒子の内部に包
含させることができない場合には、請求項２に係る発明
のように、着色微粒子に包含させた顔料超微粉末の残量
を直接に透明結合材に混入して、これに着色微粒子を混
入させればよい。この場合でも、大部分の顔料超微粉末
が球状の着色微粒子に包含されているので、少ない残量
の顔料超微粉末を透明結合材に混練させても、その物性
や作業性への影響は少ない。Further, when the total amount of the pigment ultrafine powder necessary and sufficient for developing the color of the color filter cannot be contained in the spherical colored fine particles, the colored fine particles may be formed as in the invention according to claim 2. The remaining amount of the ultrafine pigment powder included in (3) is directly mixed into the transparent binder, and the colored fine particles are mixed therein. Even in this case, since most of the pigment ultrafine powder is included in the spherical colored fine particles, even if a small amount of the pigment ultrafine powder is kneaded with the transparent binder, the influence on the physical properties and workability of the transparent binder is not affected. Few.
【００１３】請求項３に係る発明は、請求項１又は請求
項２記載のカラーフィルタにおいて、上記マイクロカプ
セル壁を形成する無機質材料が、Ｌｉ、Ｎａ、Ｋ、Ｒ
ｂ、Ｃｓ、Ｂｅ、Ｍｇ、Ｃａ、Ｓｒ、Ｂａ、Ｓｃ、Ｙ、
Ｌａ、Ｔｉ、Ｚｒ、Ｈｆ、Ｖ、Ｎｂ、Ｔａ、Ｃｒ、Ｍ
ｏ、Ｗ、Ｍｎ、Ｆｅ、Ｃｏ、Ｎｉ、Ｃｕ、Ｚｎ、Ｃｄ、
Ｈｇ、Ｂ、Ａｌ、Ｇａ、Ｉｎ、Ｔｌ、Ｃ、Ｓｉ、Ｇｅ、
Ｓｎ、Ｐｂ、Ｐ、Ａｓ、Ｓｂ、Ｂｉ、Ｓ、Ｓｅ、Ｔｅ、
Ｃｅ、Ｐｒ、Ｎｄ、Ｐｍ、Ｓｍ、Ｅｕ、Ｇｄ、Ｔｂ、Ｄ
ｙ、Ｈｏ、Ｅｒ、Ｔｍ、Ｙｂ及びＬｕからなる群より選
ばれた１種又は２種以上の元素を含む酸化物又はその前
駆体であることを特徴とする。According to a third aspect of the present invention, in the color filter according to the first or second aspect, the inorganic material forming the microcapsule wall is Li, Na, K or R.
b, Cs, Be, Mg, Ca, Sr, Ba, Sc, Y,
La, Ti, Zr, Hf, V, Nb, Ta, Cr, M
o, W, Mn, Fe, Co, Ni, Cu, Zn, Cd,
Hg, B, Al, Ga, In, Tl, C, Si, Ge,
Sn, Pb, P, As, Sb, Bi, S, Se, Te,
Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, D
It is characterized by being an oxide containing at least one element selected from the group consisting of y, Ho, Er, Tm, Yb and Lu, or a precursor thereof.
【００１４】請求項４に係る発明は、請求項１又は請求
項２記載のカラーフィルタにおいて、上記マイクロカプ
セル壁を形成する材料が樹脂材であることを特徴とす
る。The invention according to claim 4 is the color filter according to claim 1 or 2, wherein the material forming the microcapsule wall is a resin material.
【００１５】請求項５に係る発明は、請求項１ないし請
求項４のいずれかに記載のカラーフィルタにおいて、上
記着色微粒子が粒径０．１μｍ以下の超微粒子であるこ
とを特徴とする。The invention according to claim 5 is the color filter according to any one of claims 1 to 4, characterized in that the colored fine particles are ultrafine particles having a particle diameter of 0.1 μm or less.
【００１６】着色微粒子の粒径が０．１μｍ以下である
と、着色微粒子は、凝集し難く流動性があって、透明結
合材に対して均一に分散し易い。しかも、着色微粒子を
最密充填に近い状態で透明結合材に混入することがで
き、透明結合材への着色微粒子の混入可能量が多くなる
ので、塗膜の厚みが薄くても、従来と同じ特性が得られ
る。また、着色微粒子を製造する場合に、着色微粒子の
形状や大きさを揃える点で再現性があり、しかも、その
製造技術が工業的に確立しているので、実用化し易い。When the particle size of the colored fine particles is 0.1 μm or less, the colored fine particles are less likely to aggregate and have fluidity, and are easily dispersed uniformly in the transparent binder. Moreover, since the colored fine particles can be mixed in the transparent binder in a state close to the closest packing, and the amount of the colored fine particles that can be mixed in the transparent binder is large, even if the thickness of the coating film is thin, it is the same as before. The characteristics are obtained. Further, in the case of producing colored fine particles, there is reproducibility in that the shapes and sizes of the colored fine particles are made uniform, and since the production technique is industrially established, it is easy to put into practical use.
【００１７】請求項６に係る発明は、金属アルコキシド
溶液に顔料超微粉末が混合された混合溶液を調製し、そ
の混合溶液と塩基性水溶液を含む溶液とを混合して、マ
イクロカプセル壁によって顔料超微粉末を被覆した着色
微粒子を得る工程と、前記着色微粒子を透明樹脂結合材
と混練して塗布材又はインキを調製する工程と、被塗布
物に前記着色塗布材を塗布して硬化させ又は前記インキ
を印刷する工程とを順次経ることにより、カラーフィル
タを製造することを特徴とする。According to a sixth aspect of the present invention, a mixed solution in which a pigment ultrafine powder is mixed with a metal alkoxide solution is prepared, the mixed solution is mixed with a solution containing a basic aqueous solution, and the pigment is separated by a microcapsule wall. A step of obtaining colored fine particles coated with ultrafine powder, a step of kneading the colored fine particles with a transparent resin binder to prepare a coating material or ink, and applying the colored coating material to an object to be coated and curing it. A color filter is manufactured by sequentially performing the steps of printing the ink.
【００１８】請求項７に係る発明は、金属アルコキシド
溶液に顔料超微粉末が混合された混合溶液を調製し、そ
の混合溶液と塩基性水溶液を含む溶液とを混合して、マ
イクロカプセル壁によって顔料超微粉末を被覆した着色
微粒子を得る工程と、前記顔料超微粉末と同一の顔料超
微粉末を透明樹脂結合材と混練する工程と、前記着色微
粒子を、顔料超微粉末が混練された前記透明樹脂結合材
と混練して塗布材又はインキを調製する工程と、被塗布
物に前記塗布材を塗布して硬化させ又は前記インキを印
刷する工程とを順次経ることにより、カラーフィルタを
製造することを特徴とする。According to a seventh aspect of the present invention, a mixed solution in which a pigment ultrafine powder is mixed with a metal alkoxide solution is prepared, the mixed solution is mixed with a solution containing a basic aqueous solution, and the pigment is separated by a microcapsule wall. A step of obtaining colored fine particles coated with ultrafine powder; a step of kneading the same pigment ultrafine powder as the pigment ultrafine powder with a transparent resin binder; and a step of kneading the colored fine particles with the pigment ultrafine powder. A color filter is manufactured by sequentially performing a step of preparing a coating material or an ink by kneading with a transparent resin binder and a step of coating the coating material with the coating material to cure or printing the ink. It is characterized by
【００１９】請求項８に係る発明は、請求項６又は請求
項７記載のカラーフィルタ製造方法において、着色微粒
子が混練された透明樹脂結合材を基板上に塗布し、その
塗膜が被着された前記基板に対し微振動を与えて塗膜の
表面を平坦化することを特徴とする。According to an eighth aspect of the present invention, in the color filter manufacturing method according to the sixth or seventh aspect, a transparent resin binder in which colored fine particles are kneaded is applied onto a substrate, and the coating film is applied. The surface of the coating film is flattened by applying slight vibration to the substrate.
【００２０】[0020]
【発明の実施の形態】以下、この発明の最良の実施形態
について説明する。BEST MODE FOR CARRYING OUT THE INVENTION The best embodiment of the present invention will be described below.
【００２１】図１に拡大断面図を示すように、この発明
に係るカラーフィルタ１は、マイクロカプセル壁３によ
って顔料超微粉末４を被覆した着色微粒子２を透明の樹
脂結合材５に分散させた構造を有する。また、カラーフ
ィルタの発色に必要十分な量の顔料超微粉末の全量を着
色微粒子の内部に包含させることができない場合には、
図２に示すように、マイクロカプセル壁８によって顔料
超微粉末９を被覆した着色微粒子７を、前記と同一の顔
料超微粉末９が混入された透明樹脂結合材１０に分散さ
せた構造のカラーフィルタ６として、着色微粒子７に包
含させた顔料超微粉末９の残量を直接に樹脂結合材１０
に混入させるようにする。この場合、顔料を着色微粒子
７に包含させる量と透明樹脂結合材１０中に入れるそれ
ぞれの量は、特性と作業性の関連で適当に選定するよう
にすればよい。As shown in the enlarged sectional view of FIG. 1, in the color filter 1 according to the present invention, the colored fine particles 2 in which the ultrafine pigment powder 4 is coated with the microcapsule wall 3 are dispersed in the transparent resin binder 5. Have a structure. Further, in the case where the total amount of the pigment ultrafine powder necessary and sufficient for the color development of the color filter cannot be contained inside the colored fine particles,
As shown in FIG. 2, a color having a structure in which the colored fine particles 7 coated with the pigment ultrafine powder 9 by the microcapsule wall 8 are dispersed in the transparent resin binder 10 in which the same pigment ultrafine powder 9 is mixed as described above. As the filter 6, the remaining amount of the ultrafine pigment powder 9 contained in the colored fine particles 7 is directly applied to the resin binder 10.
To be mixed in. In this case, the amount of the pigment included in the colored fine particles 7 and the amount of the pigment added to the transparent resin binder 10 may be appropriately selected in relation to the characteristics and workability.
【００２２】マイクロカプセル壁３、８は、無機質材料
又は樹脂材等の有機質材料で形成されており、粒径がミ
クロン〜サブミクロンオーダー、例えば粒径０．１μｍ
以下の超微粒子からなり、球状をなし、粒径が揃ってい
る。マイクロカプセル壁３、８を形成する無機質材料と
しては、Ｌｉ、Ｎａ、Ｋ、Ｒｂ、Ｃｓ、Ｂｅ、Ｍｇ、Ｃ
ａ、Ｓｒ、Ｂａ、Ｓｃ、Ｙ、Ｌａ、Ｔｉ、Ｚｒ、Ｈｆ、
Ｖ、Ｎｂ、Ｔａ、Ｃｒ、Ｍｏ、Ｗ、Ｍｎ、Ｆｅ、Ｃｏ、
Ｎｉ、Ｃｕ、Ｚｎ、Ｃｄ、Ｈｇ、Ｂ、Ａｌ、Ｇａ、Ｉ
ｎ、Ｔｌ、Ｃ、Ｓｉ、Ｇｅ、Ｓｎ、Ｐｂ、Ｐ、Ａｓ、Ｓ
ｂ、Ｂｉ、Ｓ、Ｓｅ、Ｔｅ、Ｃｅ、Ｐｒ、Ｎｄ、Ｐｍ、
Ｓｍ、Ｅｕ、Ｇｄ、Ｔｂ、Ｄｙ、Ｈｏ、Ｅｒ、Ｔｍ、Ｙ
ｂ及びＬｕからなる群より選ばれた１種又は２種以上の
元素を含む酸化物又はその前駆体、例えばシリカ（Ｓｉ
Ｏ2）が使用される。The microcapsule walls 3 and 8 are made of an organic material such as an inorganic material or a resin material, and have a particle size of micron to submicron order, for example, a particle size of 0.1 μm.
It consists of the following ultrafine particles, is spherical, and has a uniform particle size. Examples of the inorganic material forming the microcapsule walls 3 and 8 include Li, Na, K, Rb, Cs, Be, Mg and C.
a, Sr, Ba, Sc, Y, La, Ti, Zr, Hf,
V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co,
Ni, Cu, Zn, Cd, Hg, B, Al, Ga, I
n, Tl, C, Si, Ge, Sn, Pb, P, As, S
b, Bi, S, Se, Te, Ce, Pr, Nd, Pm,
Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Y
An oxide containing one or more elements selected from the group consisting of b and Lu or a precursor thereof, such as silica (Si
O 2 ) is used.
【００２３】顔料超微粉末４、９を無機酸化物又はその
前駆体からなるマイクロカプセル壁３、８によって被覆
した構造の着色微粒子２、７は、金属アルコキシドを原
料とし、ゾル−ゲル法の１種であるステーバー（Ｓｔｏ
ｅｂｅｒ）法を応用して球状シリカ微粉末を製造する方
法を用いることにより得られる。The colored fine particles 2 and 7 having a structure in which the ultrafine pigment powders 4 and 9 are coated with the microcapsule walls 3 and 8 made of an inorganic oxide or a precursor thereof, are prepared by using a metal alkoxide as a raw material and the sol-gel method 1 Seed staver (Sto
It is obtained by applying a method for producing spherical silica fine powder by applying the eber method.
【００２４】ここで、ステーバー法は、金属アルコキシ
ドを適当な溶媒で希釈した後、その溶液を、塩基性水溶
液と適当な溶媒とからなる溶液と混合することにより、
単分散の無機質微粒子を得る方法である。図１及び図２
に示したような着色微粒子２、７を得るには、ステーバ
ー法を応用し、予め、金属アルコキシド溶液に顔料超微
粉末が混合された混合溶液を調製しておき、その混合溶
液と塩基性水溶液を含む溶液とを混合するようにする。
これにより、顔料超微粉末を核としてその周囲が無機質
材料からなる壁材によって覆われ、マイクロカプセル壁
３、８によって顔料超微粉末４、９を被覆した着色微粒
子２、７が得られることとなる。In the Staver method, the metal alkoxide is diluted with a suitable solvent, and then the solution is mixed with a solution consisting of a basic aqueous solution and a suitable solvent.
This is a method of obtaining monodisperse inorganic fine particles. 1 and 2
In order to obtain the colored fine particles 2 and 7 as shown in FIG. 2, the staver method is applied to prepare a mixed solution in which the ultrafine pigment powder is mixed with the metal alkoxide solution in advance, and the mixed solution and the basic aqueous solution are prepared. To be mixed with the solution containing.
As a result, colored fine particles 2, 7 in which the periphery of the pigment ultrafine powder is covered with a wall material made of an inorganic material and the microcapsule walls 3, 8 cover the pigment ultrafine powder 4, 9 are obtained. Become.
【００２５】着色微粒子の製造方法をもう少し具体的に
説明すると、顔料超微粉末をアルコール等に分散させた
懸濁溶液を調製するとともに、金属アルコキシドを適当
な溶媒、例えばアルコールに溶解させた溶液を調製し、
前記懸濁溶液と金属アルコキシド溶液とを混合させ、こ
の混合溶液と、塩基性水溶液と適当な溶媒とからなる溶
液、例えばアンモニア水溶液を含むアルコール溶液とを
徐々に混合させる。これにより、顔料超微粉末をシリカ
等の金属酸化物で被覆した着色微粒子が得られる。この
ときの塩基性条件下における金属アルコキシドの加水分
解の反応速度は非常に大きく、瞬時に着色微粒子が形成
される。そして、着色微粒子の粒径は、時間が経過して
も殆んど大きくならない。この着色微粒子の粒径は、原
料となる金属アルコキシドの混合比や溶媒の種類、反応
温度などを変化させることにより、所定限度内において
調整することができる。More specifically, the method for producing colored fine particles will be described. A suspension solution in which ultrafine pigment powder is dispersed in alcohol or the like is prepared, and a solution in which a metal alkoxide is dissolved in a suitable solvent such as alcohol is prepared. Prepared,
The suspension solution and the metal alkoxide solution are mixed, and this mixed solution is gradually mixed with a solution containing a basic aqueous solution and a suitable solvent, for example, an alcohol solution containing an aqueous ammonia solution. As a result, colored fine particles obtained by coating the ultrafine pigment powder with a metal oxide such as silica can be obtained. At this time, the reaction rate of the hydrolysis of the metal alkoxide under the basic condition is very high, and the colored fine particles are instantaneously formed. Then, the particle size of the colored fine particles hardly increases with time. The particle size of the colored fine particles can be adjusted within a predetermined limit by changing the mixing ratio of the metal alkoxide as the raw material, the type of solvent, the reaction temperature, and the like.
【００２６】また、原料となる金属アルコキシドは、一
般式Ｍn（ＯＲ）mで表わされる。ここで、Ｍは金属元
素、ｎはその金属元素の価数を示し、ＯＲは、炭素数１
〜１８のアルコキシ基を示し、ｍはｎに等しい。また、
ＯＲは、その一部がアルキル基、ヒドロキシル基、水
素、カルボキシル基、β−ジカルボニル基などの配位子
で置換されていてもよい。金属元素Ｍは、単独で用いら
れる場合には、Ｍｇ、Ｃａ、Ｓｒ、Ｂａ、Ｔｉ、Ｚｒ、
Ｈｆ、Ｖ、Ｔａ、Ｆｅ、Ｚｎ、Ａｌ、Ｉｎ、Ｓｉ、Ｇ
ｅ、Ｓｎ、Ｐｂなどであるが、これらの金属のアルコキ
シドと上記したような金属のアルコキシドとを組み合わ
せて使用することもできる。また、アルコキシ基として
は、メトキシ基、エトキシ基、プロポキシ基、ブトキシ
基などである。原料としての金属アルコキシドは、単独
で用いるようにしてもよいし、複数種類を組み合わせて
用いるようにしてもよい。The metal alkoxide used as a raw material is represented by the general formula M n (OR) m . Here, M represents a metal element, n represents a valence of the metal element, and OR represents a carbon number of 1
~ 18 alkoxy groups, where m is equal to n. Also,
A part of OR may be substituted with a ligand such as an alkyl group, a hydroxyl group, a hydrogen, a carboxyl group and a β-dicarbonyl group. When the metal element M is used alone, Mg, Ca, Sr, Ba, Ti, Zr,
Hf, V, Ta, Fe, Zn, Al, In, Si, G
Although e, Sn, Pb and the like, alkoxides of these metals and alkoxides of the above-mentioned metals can be used in combination. Moreover, examples of the alkoxy group include a methoxy group, an ethoxy group, a propoxy group, and a butoxy group. The metal alkoxide as a raw material may be used alone or in combination of plural kinds.
【００２７】例えば、マイクロカプセル壁３、８の形成
材となるシリカは、テトラエトキシシラン（ＴＥＯＳ）
Ｓｉ（ＯＣ2Ｈ5）4を原料とするが、ＴＥＯＳ以外に
も、以下のような金属アルコキシドを用いることができ
る。すなわち、Ｍｇ（ＯＣＨ3）2、Ｍｇ（ＯＣ
2Ｈ5）2、Ｍｇ（ＯＣ3Ｈ7）2、Ｍｇ（ＯＣ4Ｈ9）2、Ｃ
ａ（ＯＣＨ3）2、Ｃａ（ＯＣ2Ｈ5）2、Ｃａ（ＯＣ
3Ｈ7）2、Ｃａ（ＯＣ4Ｈ9）2、Ｓｒ（ＯＣＨ3）2、Ｓｒ
（ＯＣ2Ｈ5）2、Ｓｒ（ＯＣ3Ｈ7）2、Ｓｒ（ＯＣ4Ｈ9）
2、Ｂａ（ＯＣＨ3）2、Ｂａ（ＯＣ2Ｈ5）2、Ｂａ（ＯＣ
3Ｈ7）2、Ｂａ（ＯＣ4Ｈ9）2、Ｚｎ（ＯＣＨ3）2、Ｚｎ
（ＯＣ2Ｈ5）2、Ｚｎ（ＯＣ3Ｈ7）2、Ｚｎ（ＯＣ4Ｈ9）
2、Ａｌ（ＯＣＨ3）3、Ａｌ（ＯＣ2Ｈ5）3、Ａｌ（ＯＣ
3Ｈ7）3、Ａｌ（ＯＣ4Ｈ9）3、Ｉｎ（ＯＣＨ3）3、Ｉｎ
（ＯＣ2Ｈ5）3、Ｉｎ（ＯＣ3Ｈ7）3、Ｉｎ（ＯＣ4Ｈ9）
3、Ｆｅ（ＯＣＨ3）3、Ｆｅ（ＯＣ2Ｈ5）3、Ｆｅ（ＯＣ
3Ｈ7）3、Ｆｅ（ＯＣ4Ｈ9）3、Ｔｉ（ＯＣＨ3）3、Ｔｉ
（ＯＣ2Ｈ5）3、Ｔｉ（ＯＣ3Ｈ7）3、Ｔｉ（ＯＣ4Ｈ9）
3、Ｔｉ（ＯＣＨ2ＣＨ（Ｃ2Ｈ5）Ｃ4Ｈ9）4、Ｔｉ（Ｏ
Ｃ3Ｈ7）2［ＣＯ（ＣＨ3）ＣＨＣＯＣＨ3］2、Ｔｉ（Ｏ
Ｃ4Ｈ9）2［ＯＣ2Ｈ4Ｎ（Ｃ2Ｈ4ＯＨ）2］2、Ｔｉ（Ｏ
Ｈ）2［ＯＣＨ（ＣＨ3）ＣＯＯＨ］2、Ｔｉ（ＯＣＨ2Ｃ
Ｈ（Ｃ2Ｈ5）ＣＨ（ＯＨ）Ｃ3Ｈ7）4、Ｔｉ（ＯＣ
4Ｈ9）2（ＯＣＯＣ17Ｈ35）2、Ｚｒ（ＯＣＨ3）4、Ｚｒ
（ＯＣ2Ｈ5）4、Ｚｒ（ＯＣ3Ｈ7）4、Ｚｒ（ＯＣ4Ｈ9）
4、Ｈｆ（ＯＣＨ3）4、Ｈｆ（ＯＣ2Ｈ5）4、Ｈｆ（ＯＣ
3Ｈ7）4、Ｈｆ（ＯＣ4Ｈ9）4、Ｖ（ＯＣＨ3）4、Ｖ（Ｏ
Ｃ2Ｈ5）4、Ｖ（ＯＣ3Ｈ7）4、Ｖ（ＯＣ4Ｈ9）4、Ｓｉ
（ＯＣＨ3）4、Ｓｉ（ＯＣ3Ｈ7）4、Ｓｉ（ＯＣ
4Ｈ9）4、Ｇｅ（ＯＣＨ3）4、Ｇｅ（ＯＣ2Ｈ5）4、Ｇｅ
（ＯＣ3Ｈ7）4、Ｇｅ（ＯＣ4Ｈ9）4、Ｓｎ（ＯＣ
Ｈ3）4、Ｓｎ（ＯＣ2Ｈ5）4、Ｓｎ（ＯＣ3Ｈ7）4、Ｓｎ
（ＯＣ4Ｈ9）4、Ｐｂ（ＯＣＨ3）4、Ｐｂ（ＯＣ
2Ｈ5）4、Ｐｂ（ＯＣ3Ｈ7）4、Ｐｂ（ＯＣ4Ｈ9）4、Ｔ
ａ（ＯＣＨ3）5、Ｔａ（ＯＣ2Ｈ5）5、Ｔａ（ＯＣ
3Ｈ7）5、Ｔａ（ＯＣ4Ｈ9）5などの金属アルコキシドが
原料として用いられる。For example, silica used as a material for forming the microcapsule walls 3 and 8 is tetraethoxysilane (TEOS).
Although Si (OC 2 H 5 ) 4 is used as a raw material, the following metal alkoxides can be used in addition to TEOS. That is, Mg (OCH 3 ) 2 , Mg (OC
2 H 5 ) 2 , Mg (OC 3 H 7 ) 2 , Mg (OC 4 H 9 ) 2 , C
a (OCH 3 ) 2 , Ca (OC 2 H 5 ) 2 , Ca (OC
3 H 7 ) 2 , Ca (OC 4 H 9 ) 2 , Sr (OCH 3 ) 2 , Sr
(OC 2 H 5 ) 2 , Sr (OC 3 H 7 ) 2 , Sr (OC 4 H 9 )
2 , Ba (OCH 3 ) 2 , Ba (OC 2 H 5 ) 2 , Ba (OC
3 H 7 ) 2 , Ba (OC 4 H 9 ) 2 , Zn (OCH 3 ) 2 , Zn
(OC 2 H 5 ) 2 , Zn (OC 3 H 7 ) 2 , Zn (OC 4 H 9 )
2 , Al (OCH 3 ) 3 , Al (OC 2 H 5 ) 3 , Al (OC
3 H 7 ) 3 , Al (OC 4 H 9 ) 3 , In (OCH 3 ) 3 , In
(OC 2 H 5 ) 3 , In (OC 3 H 7 ) 3 , In (OC 4 H 9 )
3 , Fe (OCH 3 ) 3 , Fe (OC 2 H 5 ) 3 , Fe (OC
3 H 7 ) 3 , Fe (OC 4 H 9 ) 3 , Ti (OCH 3 ) 3 , Ti
(OC 2 H 5 ) 3 , Ti (OC 3 H 7 ) 3 , Ti (OC 4 H 9 )
3 , Ti (OCH 2 CH (C 2 H 5 ) C 4 H 9 ) 4 , Ti (O
C 3 H 7) 2 [CO (CH 3) CHCOCH 3] 2, Ti (O
C 4 H 9) 2 [OC 2 H 4 N (C 2 H 4 OH) 2] 2, Ti (O
H) 2 [OCH (CH 3 ) COOH] 2 , Ti (OCH 2 C
H (C 2 H 5 ) CH (OH) C 3 H 7 ) 4 , Ti (OC
4 H 9 ) 2 (OCOC 17 H 35 ) 2 , Zr (OCH 3 ) 4 , Zr
(OC 2 H 5 ) 4 , Zr (OC 3 H 7 ) 4 , Zr (OC 4 H 9 )
4 , Hf (OCH 3 ) 4 , Hf (OC 2 H 5 ) 4 , Hf (OC
3 H 7 ) 4 , Hf (OC 4 H 9 ) 4 , V (OCH 3 ) 4 , V (O
C 2 H 5) 4, V (OC 3 H 7) 4, V (OC 4 H 9) 4, Si
(OCH 3 ) 4 , Si (OC 3 H 7 ) 4 , Si (OC
4 H 9 ) 4 , Ge (OCH 3 ) 4 , Ge (OC 2 H 5 ) 4 , Ge
(OC 3 H 7 ) 4 , Ge (OC 4 H 9 ) 4 , Sn (OC
H 3) 4, Sn (OC 2 H 5) 4, Sn (OC 3 H 7) 4, Sn
(OC 4 H 9 ) 4 , Pb (OCH 3 ) 4 , Pb (OC
2 H 5 ) 4 , Pb (OC 3 H 7 ) 4 , Pb (OC 4 H 9 ) 4 , T
a (OCH 3 ) 5 , Ta (OC 2 H 5 ) 5 , Ta (OC
A metal alkoxide such as 3 H 7 ) 5 or Ta (OC 4 H 9 ) 5 is used as a raw material.
【００２８】上記したようにして得られた着色微粒子
は、透明樹脂結合材と混練され、或いは、顔料超微粉末
が混練された透明樹脂結合材と混練されて、塗布材又は
インキが調製される。そして、得られた塗布材を基板等
の被塗布物に塗布して硬化させ、或いは、得られたイン
キを基板等の被塗布物に印刷することにより、所定厚み
の塗膜が形成されて、カラーフィルタが得られる。この
とき、球状の着色微粒子が最密充填に近い状態で透明樹
脂結合材に分散され混合されるので、着色微粒子の間隙
に充填された透明樹脂結合材の余剰分が塗膜層の表面に
浮き出て、塗膜表面に樹脂層が形成され易くなる。そこ
で、適当な配合条件を選び、必要ならば超音波振動など
を基板等の被塗布物に対し与えるようにすると、塗膜の
表面の平坦性が向上し、従来のように平坦化のために樹
脂層を別途に塗布形成する必要も無くなり、コストアッ
プを招くような余分な工程の削減も可能になる。The colored fine particles obtained as described above are kneaded with a transparent resin binder or with a transparent resin binder in which ultrafine pigment powder is kneaded to prepare a coating material or an ink. . Then, the obtained coating material is applied to an object to be coated such as a substrate and cured, or by printing the obtained ink on an object to be coated such as a substrate, a coating film having a predetermined thickness is formed, A color filter is obtained. At this time, since the spherical colored fine particles are dispersed and mixed in the transparent resin binder in a state close to the closest packing, the surplus amount of the transparent resin binder filled in the gaps between the colored fine particles floats out on the surface of the coating layer. Thus, the resin layer is easily formed on the surface of the coating film. Therefore, if appropriate compounding conditions are selected, and if necessary ultrasonic waves are applied to the coated object such as the substrate, the flatness of the surface of the coating film improves and There is no need to separately form a resin layer, and it is possible to reduce the number of extra steps that increase costs.
【００２９】また、樹脂ラテックスや液晶用の樹脂スペ
ーサのような球状樹脂微粒子を製造する場合に、上記と
同様の方法により各色の顔料超微粉末を球状樹脂微粒子
に包含混入させ、その着色樹脂微粒子を用いてカラーフ
ィルタを製造するようにしても、上記と同様の効果が得
られる。When producing spherical resin fine particles such as resin latex and resin spacers for liquid crystals, the pigment fine particles of each color are mixed in the spherical resin fine particles by the same method as described above, and the colored resin fine particles are mixed. Even if a color filter is manufactured by using, the same effect as above can be obtained.
【００３０】以上のようにこの発明に係るカラーフィル
タは、シリカ、酸化チタン、酸化ジルコニウムなどの無
機質又は樹脂などの有機質の球状微粒子を製造する工程
において、光学特性を得るのに必要十分な量の各色の顔
料超微粉末を球状微粒子に混入包含させ、得られた粒径
０．１μｍ以下の各色の球状着色微粒子をそれぞれ着色
材料とするものである。この各色の球状着色微粒子は、
球状で粒径がよく揃っていて、表面層が何れも同一材料
であることから、各色の着色微粒子相互間の物性の差が
少ない。このため、各色の着色微粒子は、互いに同一の
作業条件で容易に透明樹脂結合材に均一に混合させるこ
とができ、しかも、着色微粒子が最密充填に近い状態で
樹脂結合材中に分散した均質性の優れた類似の塗膜が各
色について得られる。As described above, the color filter according to the present invention is used in a process of producing inorganic spherical fine particles of silica, titanium oxide, zirconium oxide or the like, or organic fine particles of resin or the like, in an amount necessary and sufficient for obtaining optical characteristics. The pigment ultrafine powder of each color is mixed and included in spherical fine particles, and the obtained spherical colored fine particles of each color having a particle size of 0.1 μm or less are used as coloring materials. The spherical colored fine particles of each color are
Since the particles are spherical and have a uniform particle size and the surface layers are made of the same material, there is little difference in the physical properties between the colored fine particles of each color. Therefore, the colored fine particles of each color can be easily and uniformly mixed with the transparent resin binder under the same working conditions, and the colored fine particles are homogeneously dispersed in the resin binder in a state close to the closest packing. Similar coatings with good properties are obtained for each color.
【００３１】従って、カラーフィルタのＲ、Ｇ、Ｂのパ
ターンを形成する場合に、各色ごとに補正することな
く、同一装置及び同一条件によりカラーフィルタを製造
することができ、実用上有効である。また、印刷法によ
りＲ、Ｇ、Ｂの３色を同時に印刷し、これらを同時に加
圧して平坦化する場合などに、特にその有効性が顕著と
なる。そして、各色において厚さ、表面平坦性、光学特
性などの揃った均質なカラーフィルタが容易に得られる
ので、従来各色間の表面の差を補正、修正する手段とし
て一般に用いられているカラーフィルタの表面研磨、平
坦化樹脂層（オーバーコート層）形成の必要が無くな
り、生産性の向上及びコストダウンなどに大いに寄与す
るものである。Therefore, when forming the R, G, and B patterns of the color filter, the color filter can be manufactured by the same apparatus and the same conditions without making correction for each color, which is practically effective. In addition, when three colors of R, G, and B are simultaneously printed by a printing method, and these are simultaneously pressed to be flattened, the effectiveness is particularly remarkable. Since a uniform color filter with uniform thickness, surface flatness, optical characteristics, etc. can be easily obtained for each color, the conventional color filter generally used as a means for correcting and correcting the surface difference between the colors. This eliminates the need for surface polishing and formation of a flattening resin layer (overcoat layer), which greatly contributes to productivity improvement and cost reduction.
【００３２】[0032]
【実施例】液晶用カラーフィルタに用いるフタロシアニ
ン系青色顔料の、粒径が０．０５μｍ以下である超微粉
末５ｇを、シリカ原料としてのＴＥＯＳ１０ｇを含むメ
タノール溶液１５０ｍｌ中に十分均一に混合させて分散
させる。この混合溶液を、２８％アンモニア水溶液１５
ｍｌを含むメタノール溶液１２０ｍｌに撹拌しながら徐
々に滴下して混合させる。これにより、顔料超微粉末を
その内部に包含した直径０．０５〜０．１μｍ以下の青
色の球状シリカ微粒子が得られた。ここで使用した青色
顔料の超微粉末及び得られた青色の球状シリカ微粒子の
各嵩密度は、それぞれ０．４４ｇ／ｃｍ3及び０．７２
ｇ／ｃｍ3であった。Example 5 g of an ultrafine powder of a phthalocyanine-based blue pigment used for a color filter for liquid crystal having a particle size of 0.05 μm or less was sufficiently and uniformly mixed and dispersed in 150 ml of a methanol solution containing 10 g of TEOS as a silica raw material. Let This mixed solution was used as a 28% ammonia solution 15
While stirring, 120 ml of a methanol solution containing 100 ml is gradually added dropwise and mixed. As a result, blue spherical silica fine particles having a diameter of 0.05 to 0.1 μm or less and containing the ultrafine pigment powder therein were obtained. The bulk densities of the ultrafine powder of blue pigment and the obtained blue spherical silica fine particles used here were 0.44 g / cm 3 and 0.72, respectively.
g / cm 3 .
【００３３】青色顔料の超微粉末及び青色の球状シリカ
微粒子をそれぞれアクリル・エポキシ系樹脂結合材と混
練した場合、実用可能な特性及び作業性を得るのに必要
な樹脂結合材量は、従来の青色顔料超微粉末では１０ｇ
であるのに対し、青色球状シリカ微粒子では６ｇで十分
であった。このように、球状シリカ微粒子を樹脂結合材
と混練したときは、球状シリカ微粒子が容易に樹脂中に
均一分散し、最密充填に近い状態となる。このため、樹
脂結合材の必要量が大幅に低減され、塗膜の厚みも２０
〜２５％薄くて、優れた光学特性を有するカラーフィル
タが得られた。When ultrafine powder of blue pigment and blue spherical silica fine particles are kneaded with an acrylic / epoxy resin binder, the amount of resin binder required to obtain practicable properties and workability is Blue pigment Ultra fine powder 10g
On the other hand, 6 g of blue spherical silica fine particles was sufficient. As described above, when the spherical silica fine particles are kneaded with the resin binder, the spherical silica fine particles are easily uniformly dispersed in the resin, and the state is close to the closest packing. Therefore, the required amount of resin binder is greatly reduced, and the thickness of the coating film is 20%.
A color filter was obtained that was ~ 25% thin and had excellent optical properties.
【００３４】同様にして、フタロシアニン系緑色顔料を
用いて緑色の球状着色微粒子を、アントラキノン系赤色
顔料を用いて赤色の球状着色微粒子を、それぞれ試作し
た。使用した緑色顔料の超微粉末及び得られた緑色の球
状シリカ微粒子の各嵩密度は、それぞれ０．５２ｇ／ｃ
ｍ3及び０．７６ｇ／ｃｍ3であり、赤色顔料の超微粉末
及び得られた赤色の球状シリカ微粒子の各嵩密度は、そ
れぞれ０．２５ｇ／ｃｍ3及び０．６８ｇ／ｃｍ3であっ
た。In the same manner, green spherical colored fine particles were produced using a phthalocyanine green pigment and red spherical colored fine particles were produced using an anthraquinone red pigment. The bulk densities of the used green pigment ultrafine powder and the obtained green spherical silica fine particles are 0.52 g / c, respectively.
m 3 and 0.76 g / cm 3, the bulk density of red spherical silica fine particles ultrafine powder and obtain a red pigment were respectively 0.25 g / cm 3 and 0.68 g / cm 3 .
【００３５】以上の結果より、必要な光学特性を得るた
めに混入する青、緑及び赤の各色顔料混入量の体積比
は、従来法では１：０．８：２であったのに対し、この
発明に係る方法では１：１：１．２とほぼ同じになっ
た。このように、必要な顔料混入量は、従来法では各色
ごとに大幅に異なっていたのに対し、この発明に係る方
法では、各色の着色微粒子の嵩密度が揃ってくるのでそ
の差が少なくなる。図３に、顔料の超微粉末とシリカの
微粉末とを単純混合したものと、顔料の超微粉末をシリ
カのマイクロカプセル壁によって被覆した球状着色微粒
子とについて、シリカ含有量と嵩密度との相関関係を示
す。図３に示すように、この発明に係る方法では、各色
の着色微粒子の嵩密度が揃ってくる。そして、各色相互
間での作業性や物性が揃うために、同一作業方法や工程
条件で同様な塗膜が得られ、その表面状態を初め諸特性
を均一化することができた。From the above results, the volume ratio of the mixed amounts of the blue, green and red pigments mixed to obtain the required optical characteristics was 1: 0.8: 2 in the conventional method. With the method according to the present invention, it was almost the same as 1: 1: 1.2. As described above, the required amount of the pigment to be mixed is largely different for each color in the conventional method, whereas in the method according to the present invention, the difference is small because the bulk density of the colored fine particles of each color is uniform. . FIG. 3 shows the silica content and bulk density of a simple mixture of ultrafine pigment powder and fine silica powder, and spherical colored fine particles obtained by coating ultrafine pigment powder with silica microcapsule walls. Shows the correlation. As shown in FIG. 3, in the method according to the present invention, the colored fine particles of each color have the same bulk density. Further, since the workability and the physical properties are the same among the respective colors, a similar coating film was obtained under the same working method and process conditions, and various characteristics including the surface condition could be made uniform.
【００３６】[0036]
【発明の効果】請求項１及び請求項２に係る各発明のカ
ラーフィルタは、同一の塗膜形成条件で、色の如何によ
らず同等の作業性により得ることができ、得られた各色
の塗膜間において均質性、表面状態などが変化せず、特
性や製品歩留りの点での問題も無い。EFFECTS OF THE INVENTION The color filters of the inventions according to claims 1 and 2 can be obtained with the same workability regardless of the color under the same coating film forming conditions. The homogeneity and surface condition do not change between coating films, and there are no problems in terms of characteristics or product yield.
【００３７】また、請求項６及び請求項７に係る各発明
の製造方法によれば、上記したような優れた特徴を有す
るカラーフィルタを比較的容易に得ることができる。Further, according to the manufacturing methods of the inventions of claims 6 and 7, it is possible to relatively easily obtain the color filter having the above-mentioned excellent characteristics.
【図１】請求項１に係る発明のカラーフィルタの拡大断
面図である。FIG. 1 is an enlarged cross-sectional view of a color filter of the invention according to claim 1.
【図２】請求項２に係る発明のカラーフィルタの拡大断
面図である。FIG. 2 is an enlarged cross-sectional view of a color filter of the invention according to claim 2.
【図３】顔料の超微粉末とシリカの微粉末とを単純混合
したものと、顔料の超微粉末をシリカのマイクロカプセ
ル壁によって被覆した球状着色微粒子とについて、シリ
カ含有量と嵩密度との相関関係を示す図である。FIG. 3 shows the silica content and the bulk density of a simple mixture of an ultrafine powder of a pigment and a fine powder of silica and a spherical colored fine particle obtained by coating the ultrafine powder of a pigment with a silica microcapsule wall. It is a figure which shows correlation.
【図４】従来のカラーフィルタの拡大断面図である。FIG. 4 is an enlarged cross-sectional view of a conventional color filter.
１、６ カラーフィルタ ２、６ 着色微粒子 ３、８ マイクロカプセル壁 ４、９ 顔料超微粉末 ５、１０ 樹脂結合材 1,6 Color filter 2,6 Colored fine particles 3,8 Microcapsule wall 4,9 Pigment ultrafine powder 5,10 Resin binder
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０９Ｄ 7/12 ＰＳＪ Ｃ０９Ｄ 7/12 ＰＳＪ 11/02 ＰＴＦ 11/02 ＰＴＦ Ｇ０２Ｆ 1/1335 ５０５ Ｇ０２Ｆ 1/1335 ５０５ (72)発明者 土岐 元幸 京都市西京区大枝東新林町３−５ 19棟 206 (72)発明者 佐村 秀夫 京都府相楽郡精華町桜ヶ丘３丁目29−10Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI Technical display location C09D 7/12 PSJ C09D 7/12 PSJ 11/02 PTF 11/02 PTF G02F 1/1335 505 G02F 1/1335 505 (72) Inventor Motoyuki Toki, 3-5 19-3 Oedashiigashishinbayashi, Nishikyo-ku, Kyoto 206 (72) Inventor Hideo Samura 3-29-10 Sakuragaoka, Seika-cho, Soraku-gun, Kyoto Prefecture
Claims (8)
クロカプセル壁によって顔料超微粉末を被覆した着色微
粒子を透明結合材に分散させてなるカラーフィルタ。1. A color filter in which colored fine particles coated with ultrafine pigment powder by spherical microcapsule walls made of an inorganic material are dispersed in a transparent binder.
クロカプセル壁によって顔料超微粉末を被覆した着色微
粒子を、前記顔料超微粉末と同一の顔料超微粉末と共に
透明結合材にそれぞれ分散させてなるカラーフィルタ。2. Colored fine particles coated with a pigment ultrafine powder by spherical microcapsule walls formed of an inorganic material are dispersed in a transparent binder together with the same pigment ultrafine powder as the pigment ultrafine powder. Color filter.
料が、Ｌｉ、Ｎａ、Ｋ、Ｒｂ、Ｃｓ、Ｂｅ、Ｍｇ、Ｃ
ａ、Ｓｒ、Ｂａ、Ｓｃ、Ｙ、Ｌａ、Ｔｉ、Ｚｒ、Ｈｆ、
Ｖ、Ｎｂ、Ｔａ、Ｃｒ、Ｍｏ、Ｗ、Ｍｎ、Ｆｅ、Ｃｏ、
Ｎｉ、Ｃｕ、Ｚｎ、Ｃｄ、Ｈｇ、Ｂ、Ａｌ、Ｇａ、Ｉ
ｎ、Ｔｌ、Ｃ、Ｓｉ、Ｇｅ、Ｓｎ、Ｐｂ、Ｐ、Ａｓ、Ｓ
ｂ、Ｂｉ、Ｓ、Ｓｅ、Ｔｅ、Ｃｅ、Ｐｒ、Ｎｄ、Ｐｍ、
Ｓｍ、Ｅｕ、Ｇｄ、Ｔｂ、Ｄｙ、Ｈｏ、Ｅｒ、Ｔｍ、Ｙ
ｂ及びＬｕからなる群より選ばれた１種又は２種以上の
元素を含む酸化物又はその前駆体である請求項１又は請
求項２記載のカラーフィルタ。3. The inorganic material forming the microcapsule wall is Li, Na, K, Rb, Cs, Be, Mg, C.
a, Sr, Ba, Sc, Y, La, Ti, Zr, Hf,
V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co,
Ni, Cu, Zn, Cd, Hg, B, Al, Ga, I
n, Tl, C, Si, Ge, Sn, Pb, P, As, S
b, Bi, S, Se, Te, Ce, Pr, Nd, Pm,
Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Y
The color filter according to claim 1 or 2, which is an oxide containing one or more elements selected from the group consisting of b and Lu or a precursor thereof.
脂材である請求項１又は請求項２記載のカラーフィル
タ。4. The color filter according to claim 1, wherein the material forming the microcapsule wall is a resin material.
粒子である請求項１ないし請求項４のいずれかに記載の
カラーフィルタ。5. The color filter according to claim 1, wherein the colored fine particles are ultrafine particles having a particle size of 0.1 μm or less.
混合された混合溶液を調製し、その混合溶液と塩基性水
溶液を含む溶液とを混合して、マイクロカプセル壁によ
って顔料超微粉末を被覆した着色微粒子を得る工程と、 前記着色微粒子を透明樹脂結合材と混練して塗布材又は
インキを調製する工程と、 被塗布物に前記着色塗布材を塗布して硬化させ又は前記
インキを印刷する工程とからなる、カラーフィルタの製
造方法。6. A mixed solution in which a pigment ultrafine powder is mixed with a metal alkoxide solution is prepared, and the mixed solution and a solution containing a basic aqueous solution are mixed to coat the pigment ultrafine powder with a microcapsule wall. A step of obtaining colored fine particles, a step of kneading the colored fine particles with a transparent resin binder to prepare a coating material or an ink, and a step of coating the object to be coated with the colored coating material and curing or printing the ink And a method of manufacturing a color filter.
混合された混合溶液を調製し、その混合溶液と塩基性水
溶液を含む溶液とを混合して、マイクロカプセル壁によ
って顔料超微粉末を被覆した着色微粒子を得る工程と、 前記顔料超微粉末と同一の顔料超微粉末を透明樹脂結合
材と混練する工程と、 前記着色微粒子を、顔料超微粉末が混練された前記透明
樹脂結合材と混練して塗布材又はインキを調製する工程
と、 被塗布物に前記塗布材を塗布して硬化させ又は前記イン
キを印刷する工程とからなる、カラーフィルタの製造方
法。7. A mixed solution in which a pigment ultrafine powder is mixed with a metal alkoxide solution is prepared, and the mixed solution and a solution containing a basic aqueous solution are mixed to coat the pigment ultrafine powder with a microcapsule wall. A step of obtaining colored fine particles, a step of kneading the same pigment ultrafine powder as the pigment ultrafine powder with a transparent resin binder, and a step of kneading the colored fine particles with the transparent resin binder obtained by kneading the pigment ultrafine powder And a step of preparing a coating material or an ink, and a step of coating the coating material with the coating material to cure or printing the ink.
を基板上に塗布し、その塗膜が被着された前記基板に対
し微振動を与えて塗膜の表面を平坦化する、請求項６又
は請求項７記載の、カラーフィルタの製造方法。8. A transparent resin binder in which colored fine particles are kneaded is applied onto a substrate, and the substrate having the applied coating is subjected to microvibration to flatten the surface of the coating. 6. The method for manufacturing a color filter according to claim 6 or claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8091698A JPH09230131A (en) | 1996-02-21 | 1996-02-21 | Color filter and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8091698A JPH09230131A (en) | 1996-02-21 | 1996-02-21 | Color filter and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09230131A true JPH09230131A (en) | 1997-09-05 |
Family
ID=14033745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8091698A Pending JPH09230131A (en) | 1996-02-21 | 1996-02-21 | Color filter and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09230131A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000066381A (en) * | 1998-08-20 | 2000-03-03 | Toppan Printing Co Ltd | Photosensitive coloring composition and color filter |
| EP1262229A1 (en) * | 2001-04-27 | 2002-12-04 | Canon Kabushiki Kaisha | Coloring composition containing a pigment coated by a polyhydroxyalkanoate |
| KR100515820B1 (en) * | 1997-12-24 | 2005-12-21 | 삼성에스디아이 주식회사 | Pigment attached to a support |
| JP2007019189A (en) * | 2005-07-06 | 2007-01-25 | Matsushita Electric Ind Co Ltd | Solid-state imaging device and manufacturing method thereof |
| JP2008231158A (en) * | 2007-03-16 | 2008-10-02 | Dainippon Toryo Co Ltd | Preparation method of paint |
| JP2011515567A (en) * | 2008-03-25 | 2011-05-19 | ゼロックス コーポレイション | Silica-encapsulated organic nanopigment and its production method |
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1996
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100515820B1 (en) * | 1997-12-24 | 2005-12-21 | 삼성에스디아이 주식회사 | Pigment attached to a support |
| JP2000066381A (en) * | 1998-08-20 | 2000-03-03 | Toppan Printing Co Ltd | Photosensitive coloring composition and color filter |
| EP1262229A1 (en) * | 2001-04-27 | 2002-12-04 | Canon Kabushiki Kaisha | Coloring composition containing a pigment coated by a polyhydroxyalkanoate |
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| JP2011515567A (en) * | 2008-03-25 | 2011-05-19 | ゼロックス コーポレイション | Silica-encapsulated organic nanopigment and its production method |
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