JPS62269117A - Vertical orientation-treatment of liquid crystal display element - Google Patents
Vertical orientation-treatment of liquid crystal display elementInfo
- Publication number
- JPS62269117A JPS62269117A JP11199386A JP11199386A JPS62269117A JP S62269117 A JPS62269117 A JP S62269117A JP 11199386 A JP11199386 A JP 11199386A JP 11199386 A JP11199386 A JP 11199386A JP S62269117 A JPS62269117 A JP S62269117A
- Authority
- JP
- Japan
- Prior art keywords
- substrates
- dmoap
- water
- soln
- liquid crystal
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 15
- 239000000758 substrate Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- WSFMFXQNYPNYGG-UHFFFAOYSA-M dimethyl-octadecyl-(3-trimethoxysilylpropyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCC[Si](OC)(OC)OC WSFMFXQNYPNYGG-UHFFFAOYSA-M 0.000 claims abstract description 18
- 238000007654 immersion Methods 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 6
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 239000003960 organic solvent Substances 0.000 claims description 7
- 150000001298 alcohols Chemical class 0.000 claims description 5
- 150000002576 ketones Chemical class 0.000 claims description 5
- 150000008282 halocarbons Chemical class 0.000 claims description 2
- 238000003672 processing method Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000002120 nanofilm Substances 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 4
- 239000002904 solvent Substances 0.000 abstract description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 21
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 235000019441 ethanol Nutrition 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- -1 acryl Chemical group 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229910003437 indium oxide Inorganic materials 0.000 description 2
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- BOSAWIQFTJIYIS-UHFFFAOYSA-N 1,1,1-trichloro-2,2,2-trifluoroethane Chemical compound FC(F)(F)C(Cl)(Cl)Cl BOSAWIQFTJIYIS-UHFFFAOYSA-N 0.000 description 1
- UJPMYEOUBPIPHQ-UHFFFAOYSA-N 1,1,1-trifluoroethane Chemical compound CC(F)(F)F UJPMYEOUBPIPHQ-UHFFFAOYSA-N 0.000 description 1
- OHMHBGPWCHTMQE-UHFFFAOYSA-N 2,2-dichloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)C(Cl)Cl OHMHBGPWCHTMQE-UHFFFAOYSA-N 0.000 description 1
- NZGSNQJCTOMELT-UHFFFAOYSA-N 3,5-dimethylorsellinic acid Chemical compound CC1=C(C)C(C(O)=O)=C(O)C(C)=C1O NZGSNQJCTOMELT-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229930194542 Keto Natural products 0.000 description 1
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【発明の詳細な説明】
（技術分野）
本発明は、液晶分子を基板面に対して垂直に配列させる
ための液晶表示素子の垂直配向処理方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a method for vertical alignment processing of a liquid crystal display element for aligning liquid crystal molecules perpendicularly to a substrate surface.
（従来技術）
垂直配向剤ＤＭＯＡＰ（Ｎ、Ｎ−ツメチル−Ｎ−オクタ
デシル−３−アミノプロピルトリメトキシルクロライド
）を用いた垂直配向処理は、次のような手順で行ってい
る。(Prior Art) Vertical alignment treatment using a vertical alignment agent DMOAP (N,N-tumethyl-N-octadecyl-3-aminopropyltrimethoxyl chloride) is performed in the following procedure.
（１）０表示のための透明電極を有する基板にＳｉＯ□
などの透明な絶縁膜を形成する。(1) SiO□ on a substrate with transparent electrodes for 0 display
Form a transparent insulating film such as
（ｉｉ）、 （ｉ）項の処理を行った基板をＤＭＯＡ
Ｐの１２／を水浴液に１５分間浸漬する。(ii), The substrate treated in (i) is DMOA
12/ of P is immersed in a water bath solution for 15 minutes.
（ｉｉｉ）、 次に、純水に１５分間浸漬した後、引
上げて乾燥する。(iii) Next, after immersing it in pure water for 15 minutes, it is pulled out and dried.
１１Ｖ）、 １２０°Ｃで加分間加熱処理する。11V) and 120°C for addition.
しかし、このような垂直配向処理をポノタイゾのダスト
・ホスト型液晶表示素子に適用した場合、僅かであつ１
も往々にして部分的なムラを生じ、これが視認性を損ね
たり、表示コントラストのムラによる不快感を誘ったり
する。また、温度６００Ｃ１湿気９５％の雰囲気に長期
間放置した場合に垂直配向性が著しく劣悪になるなど、
耐久性に問題がある。However, when such vertical alignment treatment is applied to Ponotaizo's dust-host type liquid crystal display element, it is only slightly
However, local unevenness often occurs, which impairs visibility and causes discomfort due to uneven display contrast. In addition, when left in an atmosphere with a temperature of 600C and humidity of 95% for a long period of time, vertical alignment becomes extremely poor, etc.
There is a problem with durability.
（発明の目的）
本発明の目的は、良好な視認性、耐久性及び配列安定性
が期待でき、しかも短時間での処理が可能な液晶表示素
子の垂直配向処理方法を提供することにある。(Object of the Invention) An object of the present invention is to provide a method for vertical alignment of a liquid crystal display element, which can be expected to have good visibility, durability, and alignment stability, and which can be processed in a short time.
（発明の概要）
本発明は、表示のための透明電極を形成し、更に少なく
ともこの透明電極を含む表示領域を透明な絶縁膜で被覆
した透明基板をＤＭＯＡＰの０．１ｆ／ｌ〜１０ ｆ
／ を水溶液に攪拌、振動あるいは超音波を加えながら
浸漬あるいは接触させた後、水洗し、次いでアルコール
類、ケトン類など、水と相溶性を有する有機溶剤で洗浄
し、この後、アルコール類、ケトン類あるいはハロダン
化炭化水素などの有機溶剤の加熱蒸気に浸漬して乾燥さ
せ、更に加熱処理して垂直配向膜を形成することを特徴
とするものである。(Summary of the Invention) The present invention provides a transparent substrate having a transparent electrode for display and further covering at least a display area including the transparent electrode with a transparent insulating film.
/ is immersed in or brought into contact with an aqueous solution while stirring, applying vibration or ultrasonic waves, then washed with water, and then washed with an organic solvent that is compatible with water, such as alcohols or ketones. The film is characterized by being immersed in heated vapor of an organic solvent such as a hydrocarbon or a halodanide hydrocarbon, dried, and further heat-treated to form a vertical alignment film.
（実施例）
本発明の垂直配向処理方法は、ＤＭＯＡＰなる化学物質
を用いて垂直配向膜を形成する方法であり、第１図に示
すような構造の液晶表示素子に適用する。(Example) The vertical alignment processing method of the present invention is a method of forming a vertical alignment film using a chemical substance called DMOAP, and is applied to a liquid crystal display element having a structure as shown in FIG.
第１図において、１はガラス板、プラスチックフィルム
などを用いた透明基板で、そのセル内面となる面に表示
のための透明電極２を酸化インジウムあるいは酸化スズ
などによって形成し、更に少なくともこの透明電極２を
含む表示領域にシリコン、チタンなどの酸化物あるいは
アクリル樹脂、工２キシ樹脂などの合成樹脂で透明な絶
縁膜３を形成する。この絶縁膜３の膜厚は１００〜２０
００ ’、が適当である。In FIG. 1, reference numeral 1 denotes a transparent substrate made of a glass plate, a plastic film, etc., on which a transparent electrode 2 for display is formed of indium oxide or tin oxide on the surface that becomes the inner surface of the cell, and furthermore, at least this transparent electrode 2 is formed of indium oxide or tin oxide. A transparent insulating film 3 is formed on the display area including the display area 2 using an oxide such as silicon or titanium, or a synthetic resin such as acrylic resin or acryl resin. The thickness of this insulating film 3 is 100 to 20
00' is appropriate.
次に、透明電極２、絶縁膜３を形成した基板１をＤＭＯ
ＡＰの水溶液（好ましくは純水の水溶液）に浸漬する。Next, the substrate 1 with the transparent electrode 2 and the insulating film 3 formed thereon is DMO
Immerse in an aqueous solution of AP (preferably an aqueous solution of pure water).
この時のＤＭＯＡＰの濃度はｏ、ｉｒ／ｚ〜ｌＯｆ／ｌ
が適当である。また、浸漬条件としては、液温は室温あ
るいはそれ以上の温度とし、浸漬時間はｌＯ秒〜蜀分が
実用的である。この浸漬の際、水溶液をポンプ、攪拌機
などで攪拌して水流を作るとか、透明基板１を上下に振
動させるとか、あるいは水浴液の入った容器に超音波を
加えて微振動させることが好ましい。The concentration of DMOAP at this time is o, ir/z ~ lOf/l
is appropriate. Further, as for the dipping conditions, it is practical that the liquid temperature is room temperature or higher, and the dipping time is 10 seconds to 10 minutes. During this immersion, it is preferable to stir the aqueous solution with a pump, stirrer, etc. to create a water flow, to vibrate the transparent substrate 1 up and down, or to apply ultrasonic waves to the container containing the water bath liquid to cause slight vibrations.
この後、基板１を引上げ、水で洗浄して基板ｌに付着し
ている余分なりＭＯＡＰを洗い流す。この洗浄水は純水
が好ましい。また、洗い流しの条件は、温度については
制約がなく、時間は１秒〜ｘ秒程度とする。After this, the substrate 1 is pulled up and washed with water to wash away any excess MOAP adhering to the substrate 1. This washing water is preferably pure water. Furthermore, the washing conditions are not limited to the temperature, and the time is about 1 second to x seconds.
次に、メチルアルコール、エチルアルコール、イソプロ
ピルアルコールなどのアルコール類、アセトン、メチル
エチルケトンなどのケトン類など、水と相溶性のある有
機溶剤で洗浄する。この時の温度は室温でも、加温され
ていてもよ（、洗浄時間は１秒〜１０分でよい。また、
この溶剤による洗浄は、２段あるいはそれ以上の回数と
してもよい。Next, it is washed with an organic solvent that is compatible with water, such as alcohols such as methyl alcohol, ethyl alcohol, and isopropyl alcohol, and ketones such as acetone and methyl ethyl ketone. The temperature at this time may be room temperature or heated (the cleaning time may be 1 second to 10 minutes.
This cleaning with the solvent may be performed in two stages or more times.
その場合、例えば２段洗浄であれば、第１段がイソプロ
ピルアルコールによる室温で５分の洗浄とし、第２段が
イソプロピルアルコール（第１段とは別なもの）による
室温で１０秒の洗浄とする。In that case, for example, if there is a two-stage cleaning, the first stage is cleaning with isopropyl alcohol for 5 minutes at room temperature, and the second stage is cleaning with isopropyl alcohol (different from the first stage) at room temperature for 10 seconds. do.
この後、メチルアルコール、エチルアルコール、イソプ
ロピルアルコールなどのアルコール類、アセトン、メチ
ルエチルケト／などのケトン類あるいはトリクロロエチ
レン（トリクレン）、トリクロルトリフルオルエタンな
どのハロゲン化炭化水素類などの有機溶剤の加熱蒸気に
浸漬して乾燥させる。この時の温度は、好ましくはこれ
ら有機溶剤の煮沸温度、例えばイソプロピルアルコール
であれば沸点８２．４°ｆ：！、）りクロルトリフルオ
ルエタンは４７．７°Ｃである。時間は１分〜５分で十
分である。After this, it is immersed in the heated vapor of an organic solvent such as alcohols such as methyl alcohol, ethyl alcohol, and isopropyl alcohol, ketones such as acetone, methyl ethyl keto/etc., or halogenated hydrocarbons such as trichloroethylene (triclene) and trichlorotrifluoroethane. and dry. The temperature at this time is preferably the boiling temperature of these organic solvents, for example, isopropyl alcohol has a boiling point of 82.4°F:! , ) dichlorotrifluoroethane is 47.7°C. A time of 1 to 5 minutes is sufficient.
次いで、加熱処理する。この条件は、８０″Ｃ〜２００
°Ｃでｉｏ分〜表示領域に化学蒸着法（ＣＶＤ）、によ
り酸化シリコンの絶縁膜（膜厚２０００ Ａ ）を形成
シタ後、ＤＭＯＡＰ （）−ｖ シリコーンの５ＲＸ−
６７９シラン、ＤＭＯＡＰ５Ｑ％メチルセロソロブ溶液
）の１ ｇ／ｌ水溶液（純水と混合）に超音波を加えな
がら１０分間浸漬した。この後、取出して純水が常時流
入、流出している容器で１秒間すすぎ洗いし、次いでイ
ソプロピルアルコール中に５分間浸漬し、更に２番目の
イソプロピルアルコールに１０秒間イ子漬し、最後にト
リクロルトリフルオルエタンの加熱煮沸した蒸気に５分
間曝露した。そして、１１００Ｃで１時間加熱処理した
。これで、垂直配向膜の形成が完了する。Next, heat treatment is performed. This condition is 80″C~200
After forming an insulating film of silicon oxide (film thickness 2000 A) on the display area by chemical vapor deposition (CVD) for ~io minutes at °C, DMOAP()-v of silicone 5RX-
The sample was immersed in a 1 g/l aqueous solution (mixed with pure water) of 679 silane and DMOAP (5Q% methyl cellosolub solution) for 10 minutes while applying ultrasound. After this, it was taken out and rinsed for 1 second in a container with pure water constantly flowing in and out, then immersed in isopropyl alcohol for 5 minutes, further immersed in a second isopropyl alcohol for 10 seconds, and finally rinsed with trichloroalcohol. Exposure to heated boiling vapor of trifluoroethane for 5 minutes. Then, heat treatment was performed at 1100C for 1 hour. This completes the formation of the vertical alignment film.
このようにして垂直配向膜を形成した２枚の基板を周辺
部にシール材を介在させて重ね合わせ、シール材を硬化
させてセル（容器）とし、このセル内に青色の二色性色
素を含む誘電異方性が負のネマチック液晶を充填して液
晶表示素子を作製した。１時間とする。この加熱処理で
基板ｌに垂直配向膜４が形成される。この垂直配向膜４
は、液晶表示素子としての端子、コネクタ一部あるいは
シール部に被覆されていても、それらの目的には何等影
響を与えない単分子〜数分子の膜厚で形成される。The two substrates on which vertical alignment films have been formed in this way are stacked with a sealant interposed around the periphery, the sealant is cured to form a cell (container), and a blue dichroic dye is placed inside this cell. A liquid crystal display element was fabricated by filling a nematic liquid crystal with negative dielectric anisotropy. It will be 1 hour. Through this heat treatment, a vertical alignment film 4 is formed on the substrate l. This vertical alignment film 4
Even if it is coated on a terminal as a liquid crystal display element, a part of a connector, or a sealing part, it is formed with a film thickness of a single molecule to a few molecules, which does not affect the purpose in any way.
５は透明基板で、前記基板１と同様にその一面に透明電
極６、絶縁７、垂直配向膜８が形成される。5 is a transparent substrate, and like the substrate 1, a transparent electrode 6, an insulator 7, and a vertical alignment film 8 are formed on one surface thereof.
両基板１．５をスペーサなどを用いて一定間隔に保持し
、周辺部をエポキシ接着剤、紫外線硬化接着剤などのシ
ール材９でシールしてセル（容器）とし、このセル内に
液晶１０を充填して液晶表示素子としている。Both substrates 1.5 are held at a constant distance using a spacer or the like, and the peripheral portions are sealed with a sealing material 9 such as epoxy adhesive or ultraviolet curing adhesive to form a cell (container), and a liquid crystal 10 is placed in this cell. It is filled to form a liquid crystal display element.
なお、上記実施例では浸漬によってＤＭＯＡＰを付着さ
せたが、ＤＭＯＡＰ水溶液をシャワー、水膜、噴流ど゛
して基板に接触させてもよい。この時の接触条件は上述
の浸漬条件と同様である。In the above embodiment, DMOAP was attached by dipping, but the DMOAP aqueous solution may be brought into contact with the substrate by showering, water film, jetting, etc. The contact conditions at this time are similar to the above-mentioned immersion conditions.
次に、具体例を示す。Next, a specific example will be shown.
具体例Ｉ。Specific example I.
ガラス基板に酸化スズで表示のための透明電極を形成し
、この液晶表示素子を偏光顕微鏡などで観察したところ
、全面均一な垂直配向であった。A transparent electrode for display was formed using tin oxide on a glass substrate, and when this liquid crystal display element was observed using a polarizing microscope, it was found that the entire surface was uniformly vertically aligned.
また、素子に交流電圧５ｖを印加したところ、ポノタイ
グのムラのない青色表示となった。更に、素子を温度６
０°Ｃ１湿度９５％の雰囲気に１０００時間放置した後
、観察した結果、垂直配向性は全く正常であり、５ｖの
電圧印加でコントラスト及び応答性に大きな変化は見ら
れなかった。消費電流は約２倍に増加しただけであった
。Furthermore, when an AC voltage of 5 V was applied to the element, a blue display with no unevenness was obtained. Furthermore, the element was heated to a temperature of 6
After being left in an atmosphere of 0° C. and 95% humidity for 1000 hours, observation revealed that the vertical alignment was completely normal, and no significant change in contrast or responsiveness was observed upon application of a voltage of 5 V. The current consumption only increased by about twice.
（発明の効果）
（１）、Ｄ Ｍ ＯＡ Ｐ液に基板を浸漬あるいは接触
させた後、余分なりＭＯＡＰを水で洗い流して垂直配向
に必要な最低限の単分子〜数分子膜のみ形成するので、
ＤＭＯＡＰが液晶に悪影響を及ぼすおそれがなくなると
ともに、悪条件の雰囲気でも高い耐久性を有する。(Effects of the invention) (1) After the substrate is immersed in or brought into contact with the DMOAP solution, excess MOAP is washed away with water to form only the minimum monomolecular to several molecular film necessary for vertical alignment. ,
There is no fear that DMOAP will have an adverse effect on the liquid crystal, and it has high durability even in adverse atmosphere conditions.
（２）、Ｄ Ｍ ＯＡ Ｐ液に基板を浸漬あるいは接触
させる際に攪拌、振動、超音波などを加えることにより
、基板全面に均一に垂直配向膜を形成することができる
。(2) By applying stirring, vibration, ultrasonic waves, etc. when the substrate is immersed or brought into contact with the D M OA P solution, a vertical alignment film can be uniformly formed over the entire surface of the substrate.
（３）、 Ｄ Ｍ ＯＡ Ｐは基板に容易に分子膜を
形成するので、その処理は浸漬でも、接触でも短時間で
行うことができ、作業性にすぐれている。(3) Since DMOAP easily forms a molecular film on the substrate, the treatment can be carried out in a short time by immersion or contact, and has excellent workability.
（４ル ＤＭＯＡＰの垂直配向膜は分子膜の程度の厚さ
であるので、基板の外面に膜付けがあっても外観的に人
間の目で見えることはなく、また端子部、シール部など
に膜付けがあっても、電気的特性、接着力に何等影響を
与えない。(4) The vertical alignment film of DMOAP is as thick as a molecular film, so even if the film is attached to the outer surface of the substrate, it will not be visible to the human eye, and it will not be visible to the human eye. Even if a film is attached, the electrical properties and adhesive strength are not affected in any way.
第１図は本発明方法で垂直配向処理した液晶表示素子の
構造を示す断面図である。
１及び５・・・・・・透明基板、 ２及び６・・・・
・・透明電極、３及び７・・・・・・絶縁膜、
４及び８・・・・・・ＤＭＯＡＰの垂直配向膜、９・・
・・・・シール材、１０・・・・・・液晶。
特許出願人 スタンレー電気株式会社−一−−；、。
代 理 人 秋 元 輝 雄 で
”；−、−：二５
同 秋 元 不 二 ？′Ｓ七テFIG. 1 is a cross-sectional view showing the structure of a liquid crystal display element subjected to vertical alignment treatment by the method of the present invention. 1 and 5...transparent substrate, 2 and 6...
...Transparent electrode, 3 and 7...Insulating film, 4 and 8...DMOAP vertical alignment film, 9...
... Seal material, 10 ... Liquid crystal. Patent applicant: Stanley Electric Co., Ltd. Agent Teruo Akimoto;-,-:25 Same person Fuji Akimoto?'S7te
Claims (1)
明電極を含む表示領域を透明な絶縁膜で被覆した透明基
板をＤＭＯＡＰの０．１ｇ／ｌ〜１０ｇ／ｌ水溶液に攪
拌、振動あるいは超音波を加えながら浸漬あるいは接触
させた後、水洗し、次いでアルコール類、ケトン類など
、水と相溶性を有する有機溶剤で洗浄し、この後、アル
コール類、ケトン類あるいはハロゲン化炭化水素などの
有機溶剤の加熱蒸気に浸漬して乾燥させ、更に加熱処理
して垂直配向膜を形成することを特徴とする液晶表示素
子の垂直配向処理方法。A transparent substrate on which a transparent electrode for display is formed and at least a display area including the transparent electrode is coated with a transparent insulating film is stirred, vibrated, or subjected to ultrasonic waves in a 0.1 g/l to 10 g/l aqueous solution of DMOAP. After immersion or contact with water while adding water, washing with water, then washing with an organic solvent that is compatible with water, such as alcohols or ketones, and then washing with an organic solvent such as alcohols, ketones, or halogenated hydrocarbons. 1. A vertical alignment processing method for a liquid crystal display element, which comprises immersing it in heated steam, drying it, and further heat-treating it to form a vertical alignment film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11199386A JPS62269117A (en) | 1986-05-16 | 1986-05-16 | Vertical orientation-treatment of liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11199386A JPS62269117A (en) | 1986-05-16 | 1986-05-16 | Vertical orientation-treatment of liquid crystal display element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62269117A true JPS62269117A (en) | 1987-11-21 |
Family
ID=14575256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11199386A Pending JPS62269117A (en) | 1986-05-16 | 1986-05-16 | Vertical orientation-treatment of liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62269117A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03186817A (en) * | 1989-12-18 | 1991-08-14 | Canon Inc | Production of liquid crystal element |
| EP0492417A2 (en) * | 1990-12-21 | 1992-07-01 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing chemically adsorbed film |
| JP2005242282A (en) * | 2003-11-21 | 2005-09-08 | Dainippon Ink & Chem Inc | Method for solving display defect of nematic liquid crystal display element |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50145152A (en) * | 1974-05-11 | 1975-11-21 | ||
| JPS56138716A (en) * | 1980-04-01 | 1981-10-29 | Asahi Glass Co Ltd | Liquid crystal element |
| JPS57105722A (en) * | 1980-12-24 | 1982-07-01 | Alps Electric Co Ltd | Liquid crystal display element |
| JPS57114121A (en) * | 1981-01-07 | 1982-07-15 | Hitachi Ltd | Formation of liquid crystal orienting film |
| JPS581129A (en) * | 1981-06-26 | 1983-01-06 | Alps Electric Co Ltd | Two-layer type and guest-host type liquid crystal display element and its manufacture |
| JPS60136717A (en) * | 1983-12-26 | 1985-07-20 | Matsushita Electric Ind Co Ltd | Liquid crystal orienting film for vertical orientation |
-
1986
- 1986-05-16 JP JP11199386A patent/JPS62269117A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50145152A (en) * | 1974-05-11 | 1975-11-21 | ||
| JPS56138716A (en) * | 1980-04-01 | 1981-10-29 | Asahi Glass Co Ltd | Liquid crystal element |
| JPS57105722A (en) * | 1980-12-24 | 1982-07-01 | Alps Electric Co Ltd | Liquid crystal display element |
| JPS57114121A (en) * | 1981-01-07 | 1982-07-15 | Hitachi Ltd | Formation of liquid crystal orienting film |
| JPS581129A (en) * | 1981-06-26 | 1983-01-06 | Alps Electric Co Ltd | Two-layer type and guest-host type liquid crystal display element and its manufacture |
| JPS60136717A (en) * | 1983-12-26 | 1985-07-20 | Matsushita Electric Ind Co Ltd | Liquid crystal orienting film for vertical orientation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03186817A (en) * | 1989-12-18 | 1991-08-14 | Canon Inc | Production of liquid crystal element |
| EP0492417A2 (en) * | 1990-12-21 | 1992-07-01 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing chemically adsorbed film |
| JP2005242282A (en) * | 2003-11-21 | 2005-09-08 | Dainippon Ink & Chem Inc | Method for solving display defect of nematic liquid crystal display element |
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