JPH0416094B2 - - Google Patents
Info
- Publication number
- JPH0416094B2 JPH0416094B2 JP3493484A JP3493484A JPH0416094B2 JP H0416094 B2 JPH0416094 B2 JP H0416094B2 JP 3493484 A JP3493484 A JP 3493484A JP 3493484 A JP3493484 A JP 3493484A JP H0416094 B2 JPH0416094 B2 JP H0416094B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- display element
- plastic film
- polymer blend
- 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.)
- Expired
Links
- 229920006255 plastic film Polymers 0.000 claims description 55
- 239000002985 plastic film Substances 0.000 claims description 55
- 239000004973 liquid crystal related substance Substances 0.000 claims description 53
- 239000000758 substrate Substances 0.000 claims description 41
- 229920002959 polymer blend Polymers 0.000 claims description 16
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 7
- XQYMIMUDVJCMLU-UHFFFAOYSA-N phenoxyperoxybenzene Chemical compound C=1C=CC=CC=1OOOC1=CC=CC=C1 XQYMIMUDVJCMLU-UHFFFAOYSA-N 0.000 claims description 6
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 5
- 229920006393 polyether sulfone Polymers 0.000 claims description 5
- 229920002530 polyetherether ketone Polymers 0.000 claims description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 5
- 229920000877 Melamine resin Polymers 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- -1 polyethylene terephthalate Polymers 0.000 claims description 4
- 239000004640 Melamine resin Substances 0.000 claims description 3
- 229920002492 poly(sulfone) Polymers 0.000 claims description 3
- 229920001230 polyarylate Polymers 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229920006037 cross link polymer Polymers 0.000 claims description 2
- 238000004132 cross linking Methods 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000011521 glass Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000003566 sealing material Substances 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 3
- 229920006268 silicone film Polymers 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- PSZVTTHRHBYLHR-UHFFFAOYSA-N [butyl-(4,6-diamino-1,3,5-triazin-2-yl)amino]methanol Chemical compound CCCCN(CO)C1=NC(N)=NC(N)=N1 PSZVTTHRHBYLHR-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133305—Flexible substrates, e.g. plastics, organic film
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133345—Insulating layers
Description
＜技術分野＞
本発明は、プラスチツクフイルム基板使用の液
晶表示素子（プラスチツクフイルム液晶表示素
子）に係るものであり、特に、その下地膜に関す
るものである。
＜従来技術＞
通常の液晶表示素子は、ガラス基板上に酸化ス
ズ、酸化インジウム等から成る電極パターンを形
成し、この上に液晶を配向せしめる金属酸化膜あ
るいは有機高分子膜を形成した基板を２枚対向さ
せ、この間隔に液晶を固定保持し、周辺部をシー
ル材にて封止したものである。偏光板は、液晶表
示素子を狭持するように配置し、電気光学的特性
を付与させるものである。
第１図に上記液晶表示素子の構成を示す。図に
於いて、１は偏光板、２はガラス基板、３は電極
パターン（透明導電膜）、４は配向膜、５はシー
ル材、６は液晶である。
これに対して、プラスチツクフイルム液晶表示
素子は、ガラス基板の代わりにプラスチツクフイ
ルムを基板として使用したものである。プラスチ
ツクフイルムは、ガラスに比べ、液晶表示素子に
適用するに当り、プラスチツクフイルム自体の耐
湿性、耐熱性、施光性、耐液晶性、耐溶剤性、耐
擦傷性の点で劣るほか、他材料との接着性、密着
性に劣るため、液晶表示素子の構成材料は上記通
常のガラス液晶表示素子と比べ異なるものが多
い。しかし、プラスチツクフイルム液晶表示素子
の構造は、ガラス液晶表示素子と基本的には差は
ない。ただ、プラスチツクフイルム液晶表示素子
においては下地膜を設けるのが普通である。これ
は、プラスチツクフイルム基板と透明導電膜との
間に形成される膜で、プラスチツクフイルムの耐
擦傷性、耐溶剤性、耐液晶性、耐湿性を向上さ
せ、又プラスチツクフイルム基板上に形成される
透明導電膜（電極パターン）との密着性を向上さ
せるものである。
第２図にプラスチツクフイルム液晶表示素子の
構成を示す。図に於いて、１１は偏光板、１２は
プラスチツクフイルム基板、１３は下地膜、１４
は透明導電膜（電極パターン）、１５は配向膜、
１６はシール材、１７は液晶である。
上記のような目的をもつ下地膜に対する一般的
要求としては、特に、プラスチツクフイルムの耐
擦傷性と透明導電膜の密着性を向上させるため、
硬質膜であることが要求されている。一般的な硬
質膜としては、シリコン系のハードコーティング
剤を塗布して形成されるシリコーン皮膜が多く用
いられているが、このシリコーン皮膜は、ポリカ
ーボネートやアクリルのような一部の基材を除い
て、基材との密着性が弱く、プライマーと称する
基材表面処理剤を用いて基材の表面を粗したり、
カツプリング効果を持たせたりして密着性を向上
させているのが普通である。しかし、プライマー
を用いて密着性を向上させたとしても、例えば、
エポキシ、ポリエチレンテレフタレート、ポリエ
ーテルサルフオン等、多くのプラスチツクフイル
ムに対して密着性が弱く、シリコーン皮膜を形成
した、このようなプラスチツクフイルムを高温高
湿雰囲気中に放置しておくと、シリコーン皮膜が
剥離してしまい、液晶表示素子基板としての実用
に耐えることができなかつた。一方、プラスチツ
クフイルムの耐擦傷性はシリコーン皮膜ほど良く
ないが、プラスチツクフイルム基板との密着性は
良い、メラミン系コーテイング剤もあるが、これ
は、耐溶剤性が弱く、又、透明電膜の形成が困難
等、液晶表示素子を作成する上で問題点が多かつ
た。
＜発明の目的＞
本発明は、このような問題点に鑑みなされたも
のである。すなわち、本発明は、液晶表示素子基
板として使用されるプラスチツクフイルム基板と
の密着性が良く、プラスチツクフイルム自体の耐
擦傷性、耐溶剤性、耐液晶性、耐湿性を向上さ
せ、且つ、その上に形成される透明導電膜との密
着性の良い下地膜を有するプラスチツクフイルム
液晶表示素子を提供することを目的とするもので
ある。
＜発明の構成＞
本発明のプラスチツクフイルム液晶表示素子
は、メラミン樹脂と、アルキルアルコキシシラ
ン、アミノアルコキシシラン、エポキシ変性アル
コキシシランから成る共縮合体とを混合して得ら
れるポリマーブレンドをプラスチツクフイルム基
板（一般式
で表わされるポリエチレンテレフタレート
（PET）から形成されるプラスチツクフイルム基
板、
一般式、
で表わされるポリカーボネート（PC）から形成
されるプラスチツクフイルム基板、
一般式
で表わされるポリサルフオン（PS）から形成さ
れるプラスチツクフイルム基板、
一般式
で表わされるポリエーテルサルフオン（PES）か
ら形成されるプラスチツクフイルム基板、
一般式
で表わされるポリエーテルエーテルケトン
（PEEK）から形成されるプラスチツクフイルム
基板、
一般式
（式中R1〜R6は、夫々水素又は炭素数１〜３の
低級アルキル基、R7は炭素数２〜４の低級アル
キル基、ｍは０〜３の整数、ｎは20〜300の整数
を、夫々意味する）で表わされるフエノキシエー
テル型重合体、若しくは該重合体における活性水
素部分が多官性化合物と架橋反応してなるフエノ
キシエーテル型架橋重合体から形成されるプラス
チツクフイルム基板、又は、
一般式
で表わされるポリアリレートから形成されるプラ
スチツクフイルム基板）の下地膜としたものであ
る。
上記ポリマーブレンドを下地膜に用いることに
よつて、プラスチツクフイルム基板との密着性が
向上し、又プラスチツクフイルムの耐擦傷性、耐
溶剤性、耐液晶性、耐湿性も向上した。さらに、
硬質膜であるため、下地膜上に形成される透明導
電膜の形成を容易にし、その密着性を向上させる
ことができた。なお、通常、異種高分子溶液を混
合すると、ゲル化を生じるなどのため、混合でき
ないことが多い。本発明では同一溶剤を媒介と
し、メラミン樹脂と、アルキルアルコキシシラ
ン、アミノアルコキシシラン、エポキシ変性アル
コキシシランから成る共縮合体とを混合すること
ができた。
＜実施例＞
以下、実施例を用いて説明する。
帝人化成(株)製ブチルメチロールメラミンを成分
とするコーテイング剤SM−67に勝田化工(株)製ア
ルキルアルコキシシラン、アミノアルコキシシラ
ン、エポキシ変性アルコキシシラン共縮合物を成
分とするコーテイング剤NIK COAT（主剤：触
媒＝100：７）を混合させたポリマーブレンドを
作製した。SM−67に対するNIK COATの混合
割合は10％程度から50％程度の範囲が適当であ
る。即ちSM−67は耐水性の良好な樹脂であり、
これにプラスチツクフイルム基板との接着剤を上
げる為にNIK COATを混合するが、その効果が
現われるにはNIK COATを10％程度以上添加す
ることが望ましい。またメラミン樹脂の特性を損
なわないようにするためには添加量の上限は50％
程度に設定することが望ましい。プラスチツクフ
イルム液晶表示素子のプラスチツクフイルム基板
として、厚み100μｍのポリエチレンテレクタ
レート、ポリカーボネート、ポリサルフオ
ン、ポリエーテルサルフオン、ポリエーテル
エーテルケトン、フエノキシエーテル型重合
体、ポリアリレート、から形成されるプラスチ
ツクフイルムを準備し、これらを充分に洗浄脱脂
したのち、上記ポリマーブレンドをデイツピング
法にて塗布した。15分間の風乾後、，，，
は120℃、，，は170℃で約３時間焼成
し、硬化塗膜を形成し、下地膜とした。
なお、東芝シリコーン(株)製シリコーン系ハード
コーテイング剤トスガード510（組成；
<Technical Field> The present invention relates to a liquid crystal display element using a plastic film substrate (plastic film liquid crystal display element), and particularly relates to a base film thereof. <Prior art> A typical liquid crystal display element is made by forming an electrode pattern made of tin oxide, indium oxide, etc. on a glass substrate, and then forming two substrates on which a metal oxide film or an organic polymer film for orienting the liquid crystal is formed. The liquid crystal is fixedly held at this interval by facing each other, and the peripheral portion is sealed with a sealing material. The polarizing plate is arranged to sandwich the liquid crystal display element and imparts electro-optical characteristics. FIG. 1 shows the structure of the liquid crystal display element. In the figure, 1 is a polarizing plate, 2 is a glass substrate, 3 is an electrode pattern (transparent conductive film), 4 is an alignment film, 5 is a sealing material, and 6 is a liquid crystal. On the other hand, a plastic film liquid crystal display element uses a plastic film as a substrate instead of a glass substrate. When applied to liquid crystal display elements, plastic film is inferior to glass in its own moisture resistance, heat resistance, light adhesion properties, liquid crystal resistance, solvent resistance, and scratch resistance, and is inferior to other materials. Because of the poor adhesion and adhesion with glass, the constituent materials of liquid crystal display elements are often different from those of the above-mentioned ordinary glass liquid crystal display elements. However, the structure of plastic film liquid crystal display elements is basically the same as that of glass liquid crystal display elements. However, in plastic film liquid crystal display elements, it is common to provide a base film. This is a film formed between a plastic film substrate and a transparent conductive film, which improves the scratch resistance, solvent resistance, liquid crystal resistance, and moisture resistance of the plastic film. This improves the adhesion with the transparent conductive film (electrode pattern). FIG. 2 shows the structure of a plastic film liquid crystal display element. In the figure, 11 is a polarizing plate, 12 is a plastic film substrate, 13 is a base film, and 14
15 is a transparent conductive film (electrode pattern), 15 is an alignment film,
16 is a sealing material, and 17 is a liquid crystal. General requirements for base films with the above-mentioned purposes include, in particular, to improve the scratch resistance of plastic films and the adhesion of transparent conductive films;
It is required to be a hard membrane. As a general hard film, a silicone film is often used, which is formed by applying a silicone-based hard coating agent. , the adhesion to the base material is weak, and the surface of the base material is roughened using a base material surface treatment agent called a primer,
It is common to improve adhesion by providing a coupling effect. However, even if the adhesion is improved using a primer, for example,
Many plastic films, such as epoxy, polyethylene terephthalate, and polyether sulfon, have weak adhesion, and if such plastic films are left in a high-temperature, high-humidity atmosphere, the silicone film will deteriorate. It peeled off and could not be put to practical use as a liquid crystal display element substrate. On the other hand, although the scratch resistance of plastic film is not as good as that of silicone film, there is also a melamine-based coating agent that has good adhesion to the plastic film substrate. There were many problems in producing liquid crystal display elements, such as difficulty in manufacturing. <Object of the Invention> The present invention has been made in view of these problems. That is, the present invention has good adhesion to a plastic film substrate used as a liquid crystal display element substrate, improves the scratch resistance, solvent resistance, liquid crystal resistance, and moisture resistance of the plastic film itself, and It is an object of the present invention to provide a plastic film liquid crystal display element having a base film having good adhesion to a transparent conductive film formed on the film. <Structure of the Invention> The plastic film liquid crystal display element of the present invention comprises a plastic film substrate ( general formula A plastic film substrate formed from polyethylene terephthalate (PET) represented by the general formula, A plastic film substrate formed from polycarbonate (PC) with the general formula A plastic film substrate formed from polysulfonate (PS) represented by the general formula A plastic film substrate formed from polyether sulfonate (PES) with the general formula A plastic film substrate formed from polyetheretherketone (PEEK) with the general formula (In the formula, R 1 to R 6 are each hydrogen or a lower alkyl group having 1 to 3 carbon atoms, R 7 is a lower alkyl group having 2 to 4 carbon atoms, m is an integer of 0 to 3, and n is an integer of 20 to 300. Plastics formed from phenoxy ether type polymers represented by (integers, respectively), or phenoxy ether type crosslinked polymers obtained by crosslinking the active hydrogen moiety of the polymer with a polyfunctional compound. Film substrate or general formula It was used as a base film for a plastic film substrate (made of polyarylate represented by). By using the above polymer blend in the base film, the adhesion to the plastic film substrate was improved, and the scratch resistance, solvent resistance, liquid crystal resistance, and moisture resistance of the plastic film were also improved. moreover,
Since it was a hard film, it was possible to easily form a transparent conductive film on the base film and improve its adhesion. Note that, normally, when different types of polymer solutions are mixed, it is often impossible to mix them because gelation occurs. In the present invention, a melamine resin and a cocondensate consisting of an alkyl alkoxysilane, an aminoalkoxysilane, and an epoxy-modified alkoxysilane could be mixed using the same solvent. <Example> Hereinafter, explanation will be given using an example. The coating agent SM-67, which contains butylmethylolmelamine manufactured by Teijin Kasei Co., Ltd., and the coating agent NIK COAT (main agent), which contains alkyl alkoxysilane, aminoalkoxysilane, and epoxy-modified alkoxysilane cocondensate manufactured by Katsuta Kako Co., Ltd. : catalyst = 100:7) was mixed to prepare a polymer blend. The appropriate mixing ratio of NIK COAT to SM-67 is from about 10% to about 50%. In other words, SM-67 is a resin with good water resistance.
NIK COAT is mixed with this to increase the adhesive strength with the plastic film substrate, but it is desirable to add 10% or more of NIK COAT to achieve this effect. In addition, in order not to impair the properties of melamine resin, the upper limit of the amount added is 50%.
It is desirable to set it to a certain degree. Plastic film A plastic film made of polyethylene terectalate, polycarbonate, polysulfon, polyether sulfon, polyether ether ketone, phenoxy ether type polymer, polyarylate, and has a thickness of 100 μm as a plastic film substrate for a liquid crystal display element. After thoroughly cleaning and degreasing these, the above polymer blend was applied by dipping. After air drying for 15 minutes...
The samples were baked at 120°C and 170°C for about 3 hours to form a cured coating film, which was used as a base film. In addition, Toshiba Silicone Co., Ltd.'s silicone hard coating agent Tosguard 510 (composition;
【式】）及び帝人化成(株)SM−67を
〜のプラスチツクフイルム基板に塗布したの
ち、120℃で約１時間焼成硬化した下地膜を比較
例とした。
下地膜を形成したプラスチツクフイルム基板の
初期と、80℃・95％R.H.雰囲気中に24時間放置
した後の、下地膜とプラスチツクフイルム基板と
の密着性をセロテープ剥離試験で調べたところ、
次の表に示すような結果を得た。[Formula]) and Teijin Kasei Ltd. SM-67 were coated on a plastic film substrate of ~, and then baked and cured at 120° C. for about 1 hour. A base film was used as a comparative example. The adhesion between the base film and the plastic film substrate was examined using a Cellotape peel test, both at the initial stage on which the base film was formed and after being left in an atmosphere of 80°C and 95% RH for 24 hours.
The results shown in the following table were obtained.
【表】
上記の表に示すように、本発明のポリマーブレ
ンドを下地膜として用いたときには、プラスチツ
クフイルムの種類に関係なく良好な密着性が得ら
れた。
次に、上記本発明を実施したポリマーブレンド
を下地膜としたプラスチツクフイルム基板と、
SM−67を下地膜としたプラスチツクフイルム基
板のうち、ポリエーテルサルフオンとフエノキシ
エーテル型重合体から成るプラスチツクフイルム
基板を用いて液晶表示素子を作製した。このプラ
スチツクフイルム液晶表示素子を点灯させたとこ
ろ、本発明を実施したポリマーブレンドを下地膜
としたプラスチツクフイルム液晶表示素子は正常
に点灯したが、SM−67を下地膜としたプラスチ
ツクフイルム液晶表示素子は点灯しなかつた。こ
の液晶表示素子を分解して透明導電膜を調べたと
ころ、クラツクや剥離がみられた。一方、本発明
を実施したポリマーブレンドを下地膜としたプラ
スチツクフイルム液晶表示素子の透明導電膜には
異常はみられなかつた。
＜発明の効果＞
以上のように本発明を実施したポリマーブレン
ドを下地膜としたプラスチツクフイルム液晶表示
素子は、基板と下地膜の密着性に優れ、又、耐溶
剤性、耐液晶性に優れている。さらに硬質膜であ
るため、プラスチツクフイルム基板の耐擦傷性、
耐湿性を向上させることができると共に、下地膜
上に形成される透明導電膜の形成を容易にし、そ
の密着性を向上させることができ、高品質のプラ
スチツクフイルム液晶表示素子を提供することが
できた。[Table] As shown in the above table, when the polymer blend of the present invention was used as a base film, good adhesion was obtained regardless of the type of plastic film. Next, a plastic film substrate with a base film made of the polymer blend according to the present invention,
Among plastic film substrates with SM-67 as a base film, a liquid crystal display element was fabricated using a plastic film substrate made of polyether sulfon and phenoxy ether type polymer. When this plastic film liquid crystal display element was turned on, the plastic film liquid crystal display element using the polymer blend according to the present invention as a base film lit up normally, but the plastic film liquid crystal display element using SM-67 as a base film lit up normally. It didn't light up. When this liquid crystal display element was disassembled and the transparent conductive film was examined, cracks and peeling were observed. On the other hand, no abnormalities were observed in the transparent conductive film of the plastic film liquid crystal display element using the polymer blend of the present invention as the base film. <Effects of the Invention> As described above, the plastic film liquid crystal display element using the polymer blend of the present invention as a base film has excellent adhesion between the substrate and the base film, and also has excellent solvent resistance and liquid crystal resistance. There is. Furthermore, since it is a hard film, it has excellent scratch resistance on plastic film substrates.
In addition to improving moisture resistance, it also facilitates the formation of a transparent conductive film on the base film and improves its adhesion, making it possible to provide a high-quality plastic film liquid crystal display element. Ta.
第１図及び第２図は断面図である。
符号の説明、１：偏光板、２：ガラス基板、
３：透明導電膜、４：配向膜、５：シール材、
６：液晶、１１：偏光板、１２：プラスチツクフ
イルム基板、１３：下地膜、１４：透明導電膜、
１５：配向膜、１６：シール材、１７：液晶。
1 and 2 are cross-sectional views. Explanation of symbols, 1: polarizing plate, 2: glass substrate,
3: transparent conductive film, 4: alignment film, 5: sealing material,
6: liquid crystal, 11: polarizing plate, 12: plastic film substrate, 13: base film, 14: transparent conductive film,
15: alignment film, 16: sealing material, 17: liquid crystal.
Claims (1)
に於いて、 メラミン樹脂にアルキルアルコキシシラン、ア
ミノアルコキシシラン、エポキシ変性アルコキシ
シランから成る共縮合体を混合して得られるポリ
マーブレンドをプラスチツクフイルム基板の下地
膜として用いたことを特徴とする液晶表示素子。 ２ 上記ポリマーブレンドを、一般式 で表わされるポリエチレンテレフタレート
（PET）から形成されるプラスチツクフイルム基
板の下地膜として用いたことを特徴とする、特許
請求の範囲第１項記載の液晶表示素子。 ３ 上記ポリマーブレンドを、一般式 で表わされるポリカーボネート（PC）から形成
されるプラスチツクフイルム基板の下地膜として
用いたことを特徴とする、特許請求の範囲第１項
記載の液晶表示素子。 ４ 上記ポリマーブレンドを、一般式 で表わされるポリサルフオン（PS）から形成さ
れるプラスチツクフイルム基板の下地膜として用
いたことを特徴とする、特許請求の範囲第１項記
載の液晶表示素子。 ５ 上記ポリマーブレンドを、一般式 で表わされるポリエーテルサルフオン（PES）か
ら形成されるプラスチツクフイルム基板の下地膜
として用いたことを特徴とする、特許請求の範囲
第１項記載の液晶表示素子。 ６ 上記ポリマーブレンドを、一般式 で表わされるポリエーテルエーテルケトン
（PEEK）から形成されるプラスチツクフイルム
基板の下地膜として用いたことを特徴とする、特
許請求の範囲第１項記載の液晶表示素子。 ７ 上記ポリマーブレンドを、一般式 （式中R1〜R6は、夫々水素又は炭素数１〜３の
低級アルキル基、R7は炭素数２〜４の低級アル
キル基、ｍは０〜３の整数、ｎは20〜300の整数
を、夫々意味する） で表わされるフエノキシエーテル型重合体、又は
該重合体における活性水素部分が多官性化合物と
架橋反応してなるフエノキシエーテル型架橋重合
体から形成されるプラスチツクフイルム基板の下
地膜として用いたことを特徴とする、特許請求の
範囲第１項記載の液晶表示素子。 ８ 上記ポリマーブレンドを、一般式 で表わされるポリアリレートから形成されるプラ
スチツクフイルム基板の下地膜として用いたこと
を特徴とする、特許請求の範囲第１項記載の液晶
表示素子。[Claims] 1. In a liquid crystal display device using a plastic film substrate, a polymer blend obtained by mixing a melamine resin with a co-condensate consisting of an alkyl alkoxysilane, an aminoalkoxysilane, and an epoxy-modified alkoxysilane is used on a plastic film substrate. A liquid crystal display element characterized in that it is used as a base film for. 2 The above polymer blend is expressed by the general formula 2. The liquid crystal display element according to claim 1, wherein the liquid crystal display element is used as a base film of a plastic film substrate formed from polyethylene terephthalate (PET) represented by: 3 The above polymer blend is expressed by the general formula 2. The liquid crystal display element according to claim 1, wherein the liquid crystal display element is used as a base film of a plastic film substrate made of polycarbonate (PC) represented by: 4 The above polymer blend is expressed by the general formula 2. The liquid crystal display element according to claim 1, wherein the liquid crystal display element is used as a base film of a plastic film substrate made of polysulfon (PS) represented by: 5 The above polymer blend is expressed by the general formula 2. The liquid crystal display element according to claim 1, wherein the liquid crystal display element is used as a base film of a plastic film substrate made of polyether sulfon (PES) represented by the formula: 6 The above polymer blend is expressed by the general formula 2. The liquid crystal display element according to claim 1, wherein the liquid crystal display element is used as a base film of a plastic film substrate made of polyetheretherketone (PEEK) represented by: 7 The above polymer blend is expressed by the general formula (In the formula, R 1 to R 6 are each hydrogen or a lower alkyl group having 1 to 3 carbon atoms, R 7 is a lower alkyl group having 2 to 4 carbon atoms, m is an integer of 0 to 3, and n is an integer of 20 to 300. Plastics formed from phenoxy ether type polymers represented by (integers, respectively) or phenoxy ether type crosslinked polymers obtained by crosslinking the active hydrogen moiety of the polymer with a polyfunctional compound. The liquid crystal display element according to claim 1, characterized in that it is used as a base film of a film substrate. 8 The above polymer blend is expressed by the general formula 2. The liquid crystal display element according to claim 1, wherein the liquid crystal display element is used as a base film of a plastic film substrate formed from polyarylate represented by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3493484A JPS60177319A (en) | 1984-02-23 | 1984-02-23 | Liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3493484A JPS60177319A (en) | 1984-02-23 | 1984-02-23 | Liquid crystal display element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60177319A JPS60177319A (en) | 1985-09-11 |
| JPH0416094B2 true JPH0416094B2 (en) | 1992-03-23 |
Family
ID=12428016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3493484A Granted JPS60177319A (en) | 1984-02-23 | 1984-02-23 | Liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60177319A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5767931A (en) * | 1995-10-24 | 1998-06-16 | Lucent Technologies Inc. | Composite for plastic liquid crystal display |
| DE102004037524A1 (en) | 2004-07-29 | 2006-03-23 | Samsung SDI Co., Ltd., Suwon | Display, e.g. liquid crystal display, organic light-emitting display, or plasma display panel, comprises substrate, silane derivative layer, and electrode layer containing conductors |
-
1984
- 1984-02-23 JP JP3493484A patent/JPS60177319A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60177319A (en) | 1985-09-11 |
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