JPS62229204A - Color filter - Google Patents
Color filterInfo
- Publication number
- JPS62229204A JPS62229204A JP61073295A JP7329586A JPS62229204A JP S62229204 A JPS62229204 A JP S62229204A JP 61073295 A JP61073295 A JP 61073295A JP 7329586 A JP7329586 A JP 7329586A JP S62229204 A JPS62229204 A JP S62229204A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- substrate
- film
- adhesive agent
- color filter
- 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
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 239000003086 colorant Substances 0.000 claims abstract description 7
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 abstract description 11
- 238000002834 transmittance Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract description 4
- 239000004642 Polyimide Substances 0.000 abstract description 3
- 239000004721 Polyphenylene oxide Substances 0.000 abstract description 3
- 229920000570 polyether Polymers 0.000 abstract description 3
- 229920001721 polyimide Polymers 0.000 abstract description 3
- 239000004952 Polyamide Substances 0.000 abstract description 2
- 229920002647 polyamide Polymers 0.000 abstract description 2
- -1 polybenzoimidazole Polymers 0.000 abstract description 2
- 229920001296 polysiloxane Polymers 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 27
- 239000010410 layer Substances 0.000 description 20
- 239000004973 liquid crystal related substance Substances 0.000 description 18
- 229920002120 photoresistant polymer Polymers 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 238000004043 dyeing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004695 Polyether sulfone Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920006393 polyether sulfone Polymers 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000004693 Polybenzimidazole Substances 0.000 description 2
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000007259 addition reaction Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000001045 blue dye Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000005329 float glass Substances 0.000 description 2
- 239000001046 green dye Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 229920002480 polybenzimidazole Polymers 0.000 description 2
- 239000001044 red dye Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- JOSWYUNQBRPBDN-UHFFFAOYSA-P ammonium dichromate Chemical compound [NH4+].[NH4+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O JOSWYUNQBRPBDN-UHFFFAOYSA-P 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- RFKJHQXSLBUONF-UHFFFAOYSA-N methyl blue free acid Chemical compound C1=CC(S(=O)(=O)O)=CC=C1NC1=CC=C(C(=C2C=CC(C=C2)=NC=2C=CC(=CC=2)S(O)(=O)=O)C=2C=CC(NC=3C=CC(=CC=3)S(O)(=O)=O)=CC=2)C=C1 RFKJHQXSLBUONF-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003055 poly(ester-imide) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Optical Filters (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は多色電気光学表示装置に用いられるカラーフィ
ルターに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a color filter used in a multicolor electro-optic display device.
液晶を用いた多色電気光学表示装置は、テレビ、コンピ
ュータ端末の各種ディスプレー、ビデオカメラ用モニタ
ー、車載用ディスプレー等に用いられる。Multicolor electro-optical display devices using liquid crystals are used in televisions, various displays for computer terminals, monitors for video cameras, in-vehicle displays, and the like.
この液晶による多色電気光学表示装置の一例を第3図に
より説明すると、透明ガラス等よりなる1対の基板(1
) (1)が液晶(5)を介して平行に対向配置され、
且つ各基板+11には所定形状の透明電極(2)が設け
られ、少なくとも片側の透E!A電極(2)に赤(均、
緑(G)、青(Blの着色画素(3)が形成され。An example of a multicolor electro-optical display device using liquid crystal will be explained with reference to FIG.
) (1) are arranged opposite to each other in parallel with the liquid crystal (5) interposed therebetween,
Moreover, each substrate +11 is provided with a transparent electrode (2) of a predetermined shape, and at least one side of the transparent electrode (2) is provided with a transparent electrode (2). Red (uniform,
Colored pixels (3) of green (G) and blue (Bl) are formed.
さらに液晶の配向を行なうための配向層(4)が設けら
れている。また、外周部はシール樹脂によりノールされ
て液晶表示セルが形成されている。Furthermore, an alignment layer (4) for aligning the liquid crystal is provided. Further, the outer peripheral portion is sealed with a sealing resin to form a liquid crystal display cell.
この液晶表示セルの両側あるいは片側に偏光板(6)を
配置し、光源(7)により光を照射することにより、多
色画像の表示を行うことができる。上記の液晶表示セル
用の液晶にはツィステッド、ネマティ、り、ゲストホス
トなどの種々のタイプのものを適用できる。By arranging polarizing plates (6) on both sides or one side of this liquid crystal display cell and irradiating it with light from a light source (7), a multicolor image can be displayed. Various types of liquid crystals, such as twisted, nemati, li, and guest host, can be used as the liquid crystal for the above-mentioned liquid crystal display cell.
従来、多色電気光学表示装置用カラーフィルターにおい
ては、基板(1)上にフォトリソ法、印刷法、蒸着法、
電着法などの方法により着色画素が形成され、形成した
着色画素上には物理的・化学的強度の増大と光学的特性
の改善と表面平滑性の改善とを目的として有機材料或は
無機材料よりなる保護膜が塗布或は蒸着によって設けら
れている。Conventionally, in color filters for multicolor electro-optic display devices, photolithography, printing, vapor deposition,
Colored pixels are formed by a method such as electrodeposition, and an organic or inorganic material is applied onto the formed colored pixels for the purpose of increasing physical and chemical strength, improving optical properties, and improving surface smoothness. A protective film made of the following is provided by coating or vapor deposition.
しかしながら、上記のような従来の液晶表示セルには下
記めようないくつかの欠点がある。However, the conventional liquid crystal display cell as described above has several drawbacks as described below.
(1)レベリング不良
第3図示のように着色画素に透明有機物を塗布すると1
着色画素の凹凸をなくすために透明有機物の層をかなり
の厚膜(例えばンリコーン樹脂を塗布する場合10μm
以上)に形成しなければならない。而してこのように厚
膜にするとゴミ等の存在による厚薄ムラが目立ちやすく
なる。(1) Poor leveling When a transparent organic substance is applied to colored pixels as shown in Figure 3, 1
In order to eliminate the unevenness of colored pixels, the layer of transparent organic material should be applied to a fairly thick layer (for example, 10 μm when coating with Nuricorn resin).
above). However, when the film is made thick like this, unevenness in thickness due to the presence of dust and the like becomes more noticeable.
さらに、厚膜に形成した保護膜においては、保漁膜自体
の表面張力に起因するムラ、乾燥工程において層内部と
外部の乾燥速度の違いによって生じるンワや、或は塗布
直後に塗膜内で生じる対流に起因するムラなどの間櫃が
ある。また第3図示の如く着色画素とカラーフィルター
の基板の間に透明電極を位置させる場合においては保護
膜を厚膜化につれて電極間距離が大きくなり、また、′
電極間の内部インピーダンスも大きくなり、その結果実
用不可能となる。Furthermore, in the case of a thick protective film, unevenness may occur due to the surface tension of the fish-retaining film itself. There are uneven spots caused by convection. In addition, when a transparent electrode is placed between a colored pixel and a color filter substrate as shown in Figure 3, the distance between the electrodes increases as the protective film becomes thicker.
The internal impedance between the electrodes also increases, making it impractical.
(1)駆動′電圧の上昇
テレビなどの用途に用いられる高密度液晶表示セルにお
いては単純マトリックスタイプまたは薄膜トランジスタ
ーを用いる方式のいずれかが採用されているが、カラー
用の単純マトリ。(1) Increase in driving voltage In high-density liquid crystal display cells used for applications such as televisions, either a simple matrix type or a method using thin film transistors is adopted, and a simple matrix type for color.
クスタイプの場合、通常、基板と着色画素の間に透明電
極が設けられる。着色画素を被覆する保護膜上に透明電
極を設けることも考えられるが、液晶表示セルの製造工
程中の加熱工程で透明電極と保護膜の間に応力が働き、
凹凸段差部において、透明電極の断線がしばしば生じる
。In the case of a square type, a transparent electrode is usually provided between the substrate and the colored pixels. Although it is possible to provide a transparent electrode on the protective film that covers the colored pixels, stress is generated between the transparent electrode and the protective film during the heating process during the manufacturing process of the liquid crystal display cell.
Disconnection of the transparent electrode often occurs at the uneven step portion.
この為、透明電極の位置は基板と着色画素の間に限定さ
れる。そして対向電極間に液晶以外に着色画素層及び保
f!膜層が存在することにより。Therefore, the position of the transparent electrode is limited between the substrate and the colored pixels. And between the opposing electrodes, there is a colored pixel layer other than the liquid crystal and a protective f! Due to the presence of a membrane layer.
電極間電圧はそれぞれに分配される。従って駆動電圧が
大きくなってしまう。The voltage between the electrodes is distributed to each. Therefore, the driving voltage becomes large.
(+111各色間でのスレンホールド電圧のバラツキ着
色画素を形成する場合、各色間で膜厚を高精度に制御す
ることは困難であるうえ、染料、顔料等を含むため、各
色間で誘電率が異なる。(+111 Variation in threnhold voltage between each color When forming colored pixels, it is difficult to control the film thickness between each color with high precision, and because it contains dyes, pigments, etc., the dielectric constant between each color is different.
このため、各色間でスレンホールド電圧が異なり、電極
間に等しい電圧を与えても1着色画素により透過率が異
なり、一様な表示がなされない。第4図はノーマルダー
クの液晶において、且つ透明電極が基板と着色画素の間
に位置する場合において電極間に電圧を印加させたとき
の透過率の変化を示すものである。For this reason, the threshold voltage differs between each color, and even if an equal voltage is applied between the electrodes, the transmittance differs depending on one colored pixel, and a uniform display is not achieved. FIG. 4 shows the change in transmittance when a voltage is applied between the electrodes in a normally dark liquid crystal and a transparent electrode is located between the substrate and the colored pixel.
着色画素の膜厚が大きく、誘電率が小さい程。The larger the thickness of the colored pixel and the smaller the dielectric constant.
スレンホールド電圧は大きくなる。即ち、膜厚及び/又
は誘電率の違いが原因して、各色間で動作電圧が異なり
、その結果第4図示のように赤四の着色11重画素透過
率が10チを与える電圧のとき、緑(G)の着色画素の
透過率は50%前後になり、各色間で透過率が異なり、
一様な表示がなされない。The threshold voltage increases. That is, due to the difference in film thickness and/or dielectric constant, the operating voltage differs between each color, and as a result, as shown in FIG. The transmittance of green (G) colored pixels is around 50%, and the transmittance differs between each color.
The display is not uniform.
そこで本発明が解決しようとする問題点は叙上の問題を
解決した、平坦性にすぐれ、加熱シール工程に耐え得る
耐熱性を有し、カラーフィルター上に透明電極を設けた
場合においても加熱シール時の熱の影響でカラーフィル
ターに凹凸段差部が生じ、それによりて透明電極の断線
がひきおこされることのないカラーフィルターを提供す
ることにある。Therefore, the problem to be solved by the present invention is to solve the above problems, to have excellent flatness and heat resistance that can withstand the heat sealing process, and to be heat sealable even when transparent electrodes are provided on the color filter. To provide a color filter that does not cause disconnection of transparent electrodes due to the occurrence of uneven step portions on the color filter due to the influence of heat.
本発明者は上記の問題点を解決すべく研究の結果、基板
上に複数色の着色画素を設け、該着色画素を設けた基板
面に着色画素間の段差を埋める層厚の耐熱性透明接着剤
層を介して耐熱性透明フィルムを接着することにより、
所期の目的を達成しうろことを見いだし、かかる知見に
もとづいて本発明を完成したものである。As a result of research to solve the above-mentioned problems, the present inventor provided colored pixels of multiple colors on a substrate, and attached a layer of heat-resistant transparent adhesive to the substrate surface on which the colored pixels were provided, filling the steps between the colored pixels. By adhering a heat-resistant transparent film through the agent layer,
The inventors have found a way to achieve the intended purpose, and have completed the present invention based on this knowledge.
即ち、本発明のカラーフィルターは基板上に複数色の着
色画素が設けられ、該着色画素が設けられた基板面に着
色画素間の段差を埋める層厚を耐熱性透明接着剤層を介
して耐熱性透明フィルムが接着されているものである。That is, in the color filter of the present invention, colored pixels of a plurality of colors are provided on a substrate, and a heat-resistant transparent adhesive layer is applied to the substrate surface on which the colored pixels are provided to fill in the steps between the colored pixels. A transparent film is attached.
而して本発明において、耐熱性透明フィルムとして可視
波長域380〜780麿において平坦で高い透過率を有
し、かつ、高温が付加されても伸縮、変形の少ない、ポ
リエーテル、ポリエーテルエーテル、ポリエーテルエー
テルケトン、ポリエーテルスルホン、ポリスルホン、ポ
リイミ ド、ポリアミ トイミド、ポリエステルイミド
、芳香族ポリアミド、ボリアリレート、ポリカーボネー
ト、ウレタン樹脂、ボリフェニレンオキンド、ポリベン
ゾイミダゾールなどを連系、ポリベンゾイミダゾール系
、ポリイミド系、或はシリコーン系の透明性を有し、且
つ200℃程度の耐熱性を有する接着剤を適用しうる。Accordingly, in the present invention, polyether, polyether ether, etc., which have a flat and high transmittance in the visible wavelength range of 380 to 780 m as a heat-resistant transparent film, and which do not stretch or deform even when exposed to high temperatures, are used. Polyetheretherketone, polyethersulfone, polysulfone, polyimide, polyamide, polyesterimide, aromatic polyamide, polyarylate, polycarbonate, urethane resin, polyphenylene quinde, polybenzimidazole, etc. are interconnected, polybenzimidazole-based, A polyimide-based or silicone-based adhesive that is transparent and has heat resistance of about 200° C. can be used.
第1図は本発明のカラーフィルターを示す。FIG. 1 shows a color filter of the present invention.
基板I上に複数色の着色画素(12が設けられ、該着色
画素α2が設けられた基板09面に耐熱性透明フィルム
Iが耐熱性透明接着剤層0を介して接着されている。Colored pixels (12) of a plurality of colors are provided on a substrate I, and a heat-resistant transparent film I is adhered via a heat-resistant transparent adhesive layer 0 to the surface of the substrate 09 on which the colored pixels α2 are provided.
耐熱性接着剤層及び耐熱性透明フィルムは側熱シール時
の熱により凹凸段差部がカラーフィルターに生ずること
を防止する機能を果すものである。The heat-resistant adhesive layer and the heat-resistant transparent film function to prevent uneven steps from forming on the color filter due to heat during side heat sealing.
実施例1
第2図(alないしくe)を参照しながら説明すると2
00%×200%のソーダライムフロートガラス(IQ
上にゼラチン−重クロム酸アンモニウムからなる水溶性
感光液住ηを0.8μの膜厚に塗布後、乾燥した。Example 1 To explain with reference to FIG. 2 (al to e), 2
00% x 200% soda lime float glass (IQ
A water-soluble photosensitive solution consisting of gelatin and ammonium dichromate was coated on top to a thickness of 0.8 μm, and then dried.
次いで、所定のバ・ターンを有する第1のマスク(18
を真空密着させ、I!光し、次いで温水により現像後、
乾燥し、被染色層翰を形成した。Next, a first mask (18
Vacuum seal the I! After exposure and then development with hot water,
It was dried to form a layer to be dyed.
次にネガ形レジストである環化ゴム系フォトレジストO
MR−31(東京応化■製)を0.7μの厚さに回転塗
布後、乾燥し、しかるのち、OMR−81の塗布面に第
2のマスク(図示せず)を真空密着させ、露光し、次い
で現像後、乾燥して第1の防染層Qυを形成し、赤色に
染色する被染色層以外の領域をこの防染層でおおった。Next, cyclized rubber photoresist O, which is a negative resist.
After spin-coating MR-31 (manufactured by Tokyo Ohka ■) to a thickness of 0.7μ and drying, a second mask (not shown) was vacuum-adhered to the coated surface of OMR-81 and exposed. Then, after development, it was dried to form a first resist dyeing layer Qυ, and the area other than the dyed layer to be dyed red was covered with this resist dyeing layer.
しかるのち、赤色染浴で染色して、赤色着色画素(ハ)
を形成した。その後、OMB−81よりなる防染膜r2
カを80℃に加熱したトリクロルエチレンで除去したの
ち、再びQMI’L−81を塗布後、乾燥し、しかるの
ちOMR−81の塗布面に第3のマスク(図示せず)を
真空密着して露光し、次いで現像を行なって第2の防染
層(図示せず)を形成し、緑色に染色する被色層以外の
領域を防染層でおおりた。しかるのち、緑染浴で染色し
、緑色着色画素を形成してから再度トリクロルエチレン
により防染膜を除去したのち再びOMR−81を塗布後
、乾燥し、しかるのちOMR−81の塗布面に第4のマ
スク(図示せず)を真空密着して露光し、次いで現像を
行なって第3の防染層(図示せず)を形成し、青色染浴
で染色し、青色着色画像を形成し、最後に防染層を除去
して第2図(e1図示のように加法混色タイプの色合成
を目的とした赤色着色画像@、緑色着色画像(ハ)、及
び青色着色画像(財)を形成した。Afterwards, it is dyed with a red dye bath and red colored pixels (c)
was formed. After that, the resisting film r2 made of OMB-81
After removing the mosquito with trichlorethylene heated to 80°C, QMI'L-81 was applied again and dried, and then a third mask (not shown) was vacuum-adhered to the OMR-81 applied surface. The film was exposed to light and then developed to form a second resist layer (not shown), and the area other than the colored layer to be dyed green was covered with the resist layer. After that, it was dyed in a green dye bath to form green colored pixels, the resist film was removed again with trichlorethylene, OMR-81 was applied again, and it was dried. 4 mask (not shown) is exposed in vacuum contact, and then developed to form a third resisting layer (not shown) and dyed with a blue dye bath to form a blue colored image; Finally, the resist dyeing layer was removed to form a red colored image @, a green colored image (c), and a blue colored image (image) for the purpose of additive color mixing type color synthesis as shown in Figure 2 (e1). .
尚、用いた各色の染色浴は次のとおりである。The dyeing baths for each color used are as follows.
赤色染浴 液温60℃
緑色染浴 液温60℃
青色染浴 液温60℃
染色後の着色画素の表面凹凸を表面粗度計α−8T E
P 2Q Q (Tenkov Instrumen
t社)で測定したところ、最大1.5μの凹凸が認めら
れた。Red dye bath Liquid temperature 60℃ Green dye bath Liquid temperature 60℃ Blue dye bath Liquid temperature 60℃ Measure the surface irregularities of colored pixels after dyeing using a surface roughness meter α-8T E
P 2Q Q (Tenkov Instrument
As a result of measurement by t company), irregularities of up to 1.5μ were observed.
次いで25μ厚のポリエーテルスルホンフィルム(三菱
化成■製)を用意し1着色画素を設けた基板面にンリコ
ーン系付加反応タイプ接着剤5E1700 ()−レン
リコン製)を10μの膜厚にて塗布し、ンリコーン系付
加反応タイプ接着剤塗布面にポリエーテルスルホンフィ
ルムをゴムブランケットの付いたローラーによって圧着
した。この際ローラーはほぼ一定速度で回転させながら
およそ1cIR/秒の速度を送った。Next, a polyether sulfone film (manufactured by Mitsubishi Kasei ■) with a thickness of 25 μm was prepared, and a 10 μm thick film of Nricon-based addition reaction type adhesive 5E1700 (manufactured by Renlicon) was applied to the substrate surface on which one colored pixel was provided. A polyether sulfone film was pressure-bonded to the surface coated with an addition reaction type adhesive using a roller equipped with a rubber blanket. At this time, the roller was rotated at a substantially constant speed and fed at a speed of approximately 1 cIR/sec.
150℃で接着剤を硬化させカラーフィルターを得た。The adhesive was cured at 150°C to obtain a color filter.
この得られたカラーフィルターの表面凹凸はほとんど認
めらilだ。The surface unevenness of the obtained color filter is hardly noticeable.
上記のようにして得たカラーフィルター上に次のように
して電極を設けて電極基板を形成した。Electrodes were provided on the color filter obtained as described above in the following manner to form an electrode substrate.
つまり、ITOを低温スバ、ターで200OA膜付けし
透明導電膜を作成し、更に、ホトレジストヘキスト社製
マイクロポジy) 1350を1500回転で回転塗
布、90℃にて30分間乾燥し、所定の電極パターンを
有するホトマスクと目合わせを行ない、水銀ランプによ
る露光(1fX光量50 mJ/cd )、専用現象液
にて浸漬現像、水洗を行ない、ホトレジスト層を形成し
た。That is, a transparent conductive film was created by applying a 200 OA film of ITO using a low-temperature sprayer, and then a photoresist (Microposit Y) 1350 manufactured by Hoechst was spin-coated at 1500 rpm, dried at 90°C for 30 minutes, and then the desired electrode was formed. After alignment with a photomask having a pattern, exposure using a mercury lamp (1fX light intensity 50 mJ/cd), immersion development with a special developing solution, and washing with water were performed to form a photoresist layer.
これを塩酸、硝酸、水を1−1;1とする混酸(40℃
)にて、3分間浸漬、余分な導電膜を除去し、更にホト
レジスト層を専用剥離液で除去、電極基板を得た。This is a mixed acid containing hydrochloric acid, nitric acid, and water in a ratio of 1:1 (40
) for 3 minutes, the excess conductive film was removed, and the photoresist layer was further removed with a special stripping solution to obtain an electrode substrate.
次いで作成した電極基板を用いて液晶表示セルを作製し
、液晶表示セルの表示試験をしたところ適度の駆動電圧
で各色間でのムラのない表示をすることができた。Next, a liquid crystal display cell was manufactured using the prepared electrode substrate, and a display test of the liquid crystal display cell was performed, and it was possible to perform a display without unevenness between each color at an appropriate driving voltage.
実施例2
200X300厚さ1%ソーダライムフロートガラスに
予め所定パターンを有するンルクスクリーン版(300
メツシユ、20μ厚ナイロン)を用い、赤色インキとゴ
ムスキージを使って、印刷赤色着色画像を得た。Example 2 A 200×300 1% thick soda lime float glass plate (300
A printed red colored image was obtained using red ink and a rubber squeegee.
ンルクスクリーンに付着した赤色インキを完全に洗浄し
、赤色の着色画像を150℃熱硬化させた。シルクスク
リーン印刷機の吸着台に対し1版を1画素分ずらし、緑
色インキを用いて同様に緑色の着色画像を得た。爽に版
を1画素分ずらして同様にして青色の着色画像を得、加
法混色タイプの色合成用着色画像を得た。The red ink adhering to the illuminance screen was completely washed away, and the red colored image was heat cured at 150°C. A green colored image was similarly obtained by shifting one plate by one pixel with respect to the suction table of a silk screen printing machine and using green ink. A blue colored image was obtained in the same manner by shifting the plate by one pixel to obtain an additive color mixing type colored image for color synthesis.
各色のインキ組成を以下に示す。The ink composition of each color is shown below.
赤色インキ
緑色インキ
青色インキ
上記のようKして得たカラーフィルター上に次のように
して電極を設けて電極基板を形成した。Red ink Green ink Blue ink Electrodes were provided on the color filter obtained by K as described above to form an electrode substrate in the following manner.
つまり、ITOを低温スパッターで、2000A膜付は
透明導電膜九作成し、更に、ホトレジストヘキスト社製
マイクロポジ、)−1350を1500回転で回転塗布
、90℃にて30分間乾燥し、所定の電極パターンを有
するホトマスクと目合わせを行ない、水銀ランプによる
露光(露光1150 mJ/cII)、専用曳像液にて
浸漬現像、水洗を行ない、ホトレジスト層を形成したこ
れを塩酸、硝酸、水を1:1:1とする混酸(40℃)
にて、3分間浸漬、余分な導電膜を除去し、更に、ホト
レジスト層を専用剥離液で除去、電極基板を得た。That is, a transparent conductive film with a 2000A film was prepared using ITO by low-temperature sputtering, and then a photoresist (Microposit)-1350 manufactured by Hoechst was spin-coated at 1500 rpm, dried at 90°C for 30 minutes, and then the desired electrode It was aligned with a photomask having a pattern, exposed to light using a mercury lamp (exposure 1150 mJ/cII), developed by immersion in a special developer, and washed with water to form a photoresist layer. 1:1 mixed acid (40℃)
The electrode substrate was immersed for 3 minutes to remove the excess conductive film, and then the photoresist layer was removed using a special stripping solution.
次いで作成した電極基板を用いて液晶表示セルを作製し
、液晶表示セルの表示試験をしたところ適度の駆動電圧
で各色間でのムラのない表示をすることができた。Next, a liquid crystal display cell was manufactured using the prepared electrode substrate, and a display test of the liquid crystal display cell was performed, and it was possible to perform a display without unevenness between each color at an appropriate driving voltage.
以上、詳記した通り、本発明のカラーフィルターはすぐ
れた平坦性を有し、このカラーフィルターを用いて、適
度の駆動電圧で各色間でのムラのない表示をする電気光
学表示セルを構成しうるのみならず、耐熱性に富み、セ
ルのスペーサーの部分を加熱シールする過程で高温加熱
されてもそれによって品質が損われることはない利点を
有するものである。As detailed above, the color filter of the present invention has excellent flatness, and this color filter can be used to construct an electro-optic display cell that displays uniformly between colors at an appropriate driving voltage. Not only is it durable, but it is also highly heat resistant, and has the advantage that even if the spacer portion of the cell is heated to high temperatures in the process of heat-sealing, its quality will not be impaired.
第1図は本発明のカラーフィルターの断面図、第2図(
alないしくe)は着色画素の作製手順を示す模式的断
面図、第3図は従来の多色電気光学表示装置の1例の模
式断面図、第4図は印加電圧対透過率のグラフである。
(11)・・・・・・・・・基板
(L3・・・・・・・・・着色画素
αj・・・・・・・・・耐熱性接着剤
α4・・・・・・・・・耐熱性フィルム特許出願人 大
日本印刷株式会社
代理人 弁理士 小 西 淳 美
第1図
11・・・基朦
12・・・あ色画東
13 ・・・H@−)nミ54tt1
14・・・耐纂ゑl應フA市ムFigure 1 is a sectional view of the color filter of the present invention, Figure 2 (
al to e) are schematic cross-sectional views showing the procedure for producing colored pixels, FIG. 3 is a schematic cross-sectional view of an example of a conventional multicolor electro-optical display device, and FIG. 4 is a graph of applied voltage versus transmittance. be. (11)......Substrate (L3...Colored pixel αj...Heat-resistant adhesive α4... Heat-resistant film patent applicant Dainippon Printing Co., Ltd. Agent Patent attorney Atsushi Ko Nishi Figure 1 11... Motoyasu 12... Airoga Higashi 13...H@-)nmi54tt1 14...・Resistance A city
Claims (1)
けられた基板面に着色画素間の段差を埋める層厚の耐熱
性透明接着剤層を介して耐熱性透明フィルムが接着され
ているカラーフィルター。Colored pixels of a plurality of colors are provided on a substrate, and a heat-resistant transparent film is adhered to the substrate surface on which the colored pixels are provided via a heat-resistant transparent adhesive layer having a thickness that fills the level difference between the colored pixels. Color filter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61073295A JPS62229204A (en) | 1986-03-31 | 1986-03-31 | Color filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61073295A JPS62229204A (en) | 1986-03-31 | 1986-03-31 | Color filter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62229204A true JPS62229204A (en) | 1987-10-08 |
Family
ID=13514026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61073295A Pending JPS62229204A (en) | 1986-03-31 | 1986-03-31 | Color filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62229204A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4007119A1 (en) * | 1989-12-02 | 1991-06-13 | Samsung Electronics Co Ltd | Colour filter e.g. for solid state image sensor - has at least 2 mutually different filtering characteristics corresponding to pixels placed in array on background substrate |
-
1986
- 1986-03-31 JP JP61073295A patent/JPS62229204A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4007119A1 (en) * | 1989-12-02 | 1991-06-13 | Samsung Electronics Co Ltd | Colour filter e.g. for solid state image sensor - has at least 2 mutually different filtering characteristics corresponding to pixels placed in array on background substrate |
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