JPH0117136B2 - - Google Patents
Info
- Publication number
- JPH0117136B2 JPH0117136B2 JP58247204A JP24720483A JPH0117136B2 JP H0117136 B2 JPH0117136 B2 JP H0117136B2 JP 58247204 A JP58247204 A JP 58247204A JP 24720483 A JP24720483 A JP 24720483A JP H0117136 B2 JPH0117136 B2 JP H0117136B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- alignment film
- film
- crystal display
- display panel
- 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
- 239000004973 liquid crystal related substance Substances 0.000 claims description 46
- 239000011521 glass Substances 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- WSJULBMCKQTTIG-OWOJBTEDSA-N (e)-1,1,1,2,3,4,4,4-octafluorobut-2-ene Chemical compound FC(F)(F)C(/F)=C(\F)C(F)(F)F WSJULBMCKQTTIG-OWOJBTEDSA-N 0.000 claims description 7
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 claims description 3
- VBHXIMACZBQHPX-UHFFFAOYSA-N 2,2,2-trifluoroethyl prop-2-enoate Chemical compound FC(F)(F)COC(=O)C=C VBHXIMACZBQHPX-UHFFFAOYSA-N 0.000 claims description 3
- SJGGAMMXIZFWSF-UHFFFAOYSA-N 2,3,3-trifluoroprop-2-enoyl fluoride Chemical compound FC(F)=C(F)C(F)=O SJGGAMMXIZFWSF-UHFFFAOYSA-N 0.000 claims description 3
- 150000002894 organic compounds Chemical class 0.000 claims description 3
- QVHWOZCZUNPZPW-UHFFFAOYSA-N 1,2,3,3,4,4-hexafluorocyclobutene Chemical compound FC1=C(F)C(F)(F)C1(F)F QVHWOZCZUNPZPW-UHFFFAOYSA-N 0.000 claims description 2
- WBCLXFIDEDJGCC-UHFFFAOYSA-N hexafluoro-2-butyne Chemical compound FC(F)(F)C#CC(F)(F)F WBCLXFIDEDJGCC-UHFFFAOYSA-N 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000004988 Nematic liquid crystal Substances 0.000 description 2
- 125000002723 alicyclic group Chemical group 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 229940067606 lecithin Drugs 0.000 description 2
- 235000010445 lecithin Nutrition 0.000 description 2
- 239000000787 lecithin Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- LGPPATCNSOSOQH-UHFFFAOYSA-N 1,1,2,3,4,4-hexafluorobuta-1,3-diene Chemical compound FC(F)=C(F)C(F)=C(F)F LGPPATCNSOSOQH-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000005406 washing Methods 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
Description
産業上の利用分野
本発明は液晶表示パネル用配向膜、特に液晶表
示パネルに使用する垂直配向用液晶配向膜に関す
る。
従来例の構成とその問題点
液晶表示パネルに用いられる液晶の分子配向形
態としては、上記パネルの電極面に対して平行に
配向させる方式と、垂直に配向させる方式との２
種類に分けられる。しかして現存は前者の平行配
向方式を利用したツイステツドネマチツク型液晶
表示パネルが主流となつている。しかしながら上
記ツイステツドネマチツク型液晶表示パネルでは
視角依存性が大きいという欠点を有し、一方平行
配向形態の液晶をゲスト・ホスト型のカラー液晶
表示に用いる場合ネガ表示となるため全体の光量
が少なく表示が暗くなる欠点を有している。ここ
れに対し、垂直配向形態の液晶を利用した液晶表
示パネルにおいては、上述した欠点が比較的少な
く、カラー表示の場合、ポジ表示であるため、視
認性の良いカラー表示が得られる利点を有する。
この垂直配向形態の液晶の動作は、液晶表示パネ
ルの電極間に電圧を印加していないときには液晶
分子が電極面に垂直配向しており、電圧印加した
ときに液晶分子が電極に対して平行に並び発色す
る。
しかるに従来から使用されている負の誘電異方
性を有する液晶（以後ｎ型ネマチツク液晶と称す
る）を用いた場合、この液晶分子を垂直に配向さ
せる必要があるが、この配向処理が非常に繁雑
で、しかも充分な配向性能を得難いことが多かつ
た。
発明の目的
本発明は上述した従来の液晶配向法の欠点を解
消することにあり、簡単な方法でしかも斑がなく
コントラストの良い垂直配向方式に利用しうる液
晶配向膜を提供することにある。
発明の構成
本発明は透明電極を設けたガラス基板上を覆う
ように詳けた液晶配向膜であつて、上記液晶配向
膜が、分子中に弗素原子を有する有機化合物のグ
ロー放電によるプラズマ重合によつて形成された
膜である垂直配用液晶配向膜にある。
本発明で使用しうる分子中に弗素原子を有する
有機化合物としては、弗素化脂肪族または脂環式
族不飽和化合物であり、パーフルオロブテン−
２、弗素化ビニリデン、ヘキサフルオロブタジエ
ン−１，３、ヘキサフルオロブチン−２、ヘキサ
フルオロシクロブテン、２，２，２−トリフルオ
ロエチルアクリレート、トリフルオロアクリロイ
ルフルオライドが使用できるが、また上述した弗
素化脂肪族または脂環式族不飽和化合物はそれぞ
れ単独で使用してもよく、あるいは任意の混合物
の形で使用してもよい。
本発明の液晶配向膜を製造するに当つては、上
述した特定の弗素化脂肪族または脂環式族不飽和
化合物（以下弗素化不飽和化合物と略称する）を
気体または蒸気状態にしてグロー放電装置に導入
する。上記弗素化不飽和化合物を気体または蒸気
状態にするには必要あれば加熱するか、不活性ガ
ス例えばアルゴンまたはヘリウムをキヤリヤーガ
スとして使用して気化または蒸気化させてもよ
い。
グロー放電装置は従来より使用されている任意
の装置を使用でき、装置内は真空度0.01〜数
Torrに減圧し、動力５〜200W、周波数5KHz〜
30MHzの高周波電界を用いてグロー放電させる。
放電時間は１〜20分でよい。
上述した条件の下で透明電極を設けたガラス基
板上に弗素化不飽和化合物のプラズマ重合膜が形
成される。膜厚は通常0.01〜0.5μ、好ましくは
0.02〜0.1μである。
実施例の説明
以下に本発明の実施例を第１図を参照して説明
する。
第１図は本発明による液晶配向膜をグロー放電
により製造する方法を示すための説明図であり、
第１図において、ベルジヤー１２の内部１９を先
ず真空ポンプ１６によつて排気しつつ、一方で弗
素化不飽和化合物例えばパーフルオロブテン−２
をボンベ１７から導入管１８を経てベルジヤー内
部１９中に導入する。ベルジヤー内部１９はパー
フルオロブテン−２ガスで圧力0.1〜1Torrに保
つ。このとき下部電極１１上に一定の間隔を置い
て帯状透明電極２（図では３個）を設けたガラス
基板１を置き、透明電極２を上部電極１０と対面
するように置く。パーフルオロブテン−２ガスの
流入量をベルジヤー内部１９の圧力0.1〜10Torr
に保つように調整しつつ上部電極１０と下部電極
１１の間に、高周波電源１４により13.56MHzの
高周波放電を発生させる。マツチングユニツト１
３により系のインピーダンスを調節することによ
りグロー放電を持続させる。かくしてグロー放電
が誘起されると、ベルジヤー内部１９にパーフル
オロブテン−２のプラズマ状態が生じ、かつ持続
され、ガラス基板１および透明電極１の上にパー
フルオロブテン−２の重合体膜が形成される。５
分後に膜厚0.1μのピンホールが非常に少ない均一
で平滑な配向膜が形成される。
なお従来の配向膜例えばポリイミド膜で被覆す
る場合にはガラス基板は透明電極形成後アルカリ
水溶液等で洗浄し、更に水洗、乾燥等の工程が不
可欠であつたが、本発明の配向膜形成に当つては
かかる清浄化は必ずしも必要でなく、単にガラス
基板上の異物を除去するだけで直ちに液晶配向膜
を形成しても差支えないことが判つた。
上述した如くして製造した液晶配向膜を形成し
た透明電極２を設けたガラス基板１を用い、液晶
表示パネルを製造するに当つては、第２図に示す
如く、上述した如くして形成したそれぞれ液晶配
向膜３および３′を有し、透明電極２および２′を
設けたガラス基板１および１′を、それぞれの透
明電極２および２′が互いに直交するように一定
の間隔を保つて対向させて組合せ、周囲を封止剤
４によつて封止した後、上記間隙中に、1.5重量
％のアトラキノン系染料例えば
を添加した負の透電異方性を有するネマチツク液
晶６を封入する。その後ガラス基板１′の背面
（透明電極が設けてない側）に反射板５を貼付す
る。かくして液晶表示パネルが完成する。この液
晶表示パネルは配向斑がなく、視認性も良好です
ぐれた性能を示した。この結果を表１に例１とし
て示す。
なお表１には前述した方法で同様に形成した弗
素化ビニリデンプラズマ重合膜、トリフルオロア
クリロイルフルオライドプラズマ重合膜、２，
２，２−トリフルオロエチルアクリレートプラズ
マ重合膜を用いて作つた上述した如く構成した液
晶表示パネルについての性能も、それぞれ例２〜
４として示す。
また表１には垂直配向膜の従来の例であるレシ
チンの1μの厚さの配向膜をスピンコート法によ
り形成し、上記例１〜４と同様の液晶表示パネル
を作つた結果を比較例として示す。
なお参考例として同じ染料を用い正の誘電異方
性を有する液晶を用いたネガ表示パネルの性能も
表１に併記する。
INDUSTRIAL APPLICATION FIELD The present invention relates to an alignment film for a liquid crystal display panel, and particularly to a liquid crystal alignment film for vertical alignment used in a liquid crystal display panel. Structure of conventional example and its problems There are two types of molecular orientation of liquid crystal used in liquid crystal display panels: one in which the molecules are aligned parallel to the electrode surface of the panel, and the other in which they are aligned perpendicularly to the electrode surface of the panel.
Divided into types. However, currently, twisted nematic type liquid crystal display panels that utilize the former parallel alignment method are the mainstream. However, the above-mentioned twisted nematic type liquid crystal display panel has the disadvantage of large viewing angle dependence, and on the other hand, when parallel alignment type liquid crystal is used for a guest-host type color liquid crystal display, a negative display is obtained and the overall light amount is reduced. It has the disadvantage that the display becomes darker. On the other hand, liquid crystal display panels that use vertically aligned liquid crystals have relatively few of the above-mentioned drawbacks, and have the advantage of providing a color display with good visibility because it is a positive display in the case of color display. .
The operation of this vertically aligned liquid crystal is such that when no voltage is applied between the electrodes of the liquid crystal display panel, the liquid crystal molecules are aligned perpendicular to the electrode surface, and when a voltage is applied, the liquid crystal molecules are aligned parallel to the electrodes. Color develops in a row. However, when using conventionally used liquid crystals with negative dielectric anisotropy (hereinafter referred to as n-type nematic liquid crystals), it is necessary to vertically align the liquid crystal molecules, but this alignment process is extremely complicated. Moreover, it was often difficult to obtain sufficient alignment performance. OBJECTS OF THE INVENTION The purpose of the present invention is to eliminate the drawbacks of the conventional liquid crystal alignment methods described above, and to provide a liquid crystal alignment film that can be used in a vertical alignment method that is simple, free of spots, and has good contrast. Structure of the Invention The present invention is a liquid crystal alignment film formed to cover a glass substrate provided with a transparent electrode, wherein the liquid crystal alignment film is formed by plasma polymerization by glow discharge of an organic compound having fluorine atoms in its molecules. This is a vertically arranged liquid crystal alignment film, which is a film formed by Organic compounds having a fluorine atom in the molecule that can be used in the present invention include fluorinated aliphatic or alicyclic unsaturated compounds, including perfluorobutene-
2. Vinylidene fluoride, hexafluorobutadiene-1,3, hexafluorobutyne-2, hexafluorocyclobutene, 2,2,2-trifluoroethyl acrylate, trifluoroacryloyl fluoride can be used, but the above-mentioned fluorine The aliphatic or cycloaliphatic unsaturated compounds may each be used alone or in the form of any mixture. In producing the liquid crystal alignment film of the present invention, the above-mentioned specific fluorinated aliphatic or alicyclic unsaturated compound (hereinafter abbreviated as fluorinated unsaturated compound) is made into a gas or vapor state and subjected to glow discharge. Introduce it into the device. The fluorinated unsaturated compounds may be brought into a gas or vapor state by heating, if necessary, or by vaporization or vaporization using an inert gas such as argon or helium as a carrier gas. Any conventionally used glow discharge device can be used, and the inside of the device has a degree of vacuum of 0.01 to several
Reduce pressure to Torr, power 5~200W, frequency 5KHz~
A glow discharge is generated using a 30MHz high-frequency electric field.
The discharge time may be 1 to 20 minutes. A plasma polymerized film of a fluorinated unsaturated compound is formed on a glass substrate provided with a transparent electrode under the above conditions. The film thickness is usually 0.01~0.5μ, preferably
It is 0.02-0.1μ. DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is an explanatory diagram showing a method for manufacturing a liquid crystal alignment film according to the present invention by glow discharge,
In FIG. 1, the interior 19 of the bell gear 12 is first evacuated by a vacuum pump 16 while a fluorinated unsaturated compound such as perfluorobutene-2 is removed.
is introduced from the cylinder 17 through the inlet pipe 18 into the bell jar interior 19. The inside of the bell gear 19 is maintained at a pressure of 0.1 to 1 Torr with perfluorobutene-2 gas. At this time, a glass substrate 1 on which band-shaped transparent electrodes 2 (three in the figure) are provided is placed on the lower electrode 11 at regular intervals, and the transparent electrode 2 is placed so as to face the upper electrode 10. The inflow amount of perfluorobutene-2 gas is adjusted to the pressure inside the bell gear 19 of 0.1 to 10 Torr.
A high frequency discharge of 13.56 MHz is generated between the upper electrode 10 and the lower electrode 11 by the high frequency power source 14 while adjusting the voltage to maintain the same. Matching unit 1
3, the glow discharge is maintained by adjusting the impedance of the system. When the glow discharge is induced in this way, a plasma state of perfluorobutene-2 is generated and maintained inside the bell jar 19, and a polymer film of perfluorobutene-2 is formed on the glass substrate 1 and the transparent electrode 1. Ru. 5
After a few minutes, a uniform and smooth alignment film with a film thickness of 0.1μ with very few pinholes is formed. In addition, when coating with a conventional alignment film, such as a polyimide film, it was necessary to wash the glass substrate with an alkaline aqueous solution after forming the transparent electrode, and then to perform further steps such as washing with water and drying. In the end, it has been found that such cleaning is not necessarily necessary, and a liquid crystal aligning film can be formed immediately by simply removing foreign matter on the glass substrate. When manufacturing a liquid crystal display panel using the glass substrate 1 provided with the transparent electrode 2 formed with the liquid crystal alignment film manufactured as described above, as shown in FIG. Glass substrates 1 and 1' each having a liquid crystal alignment film 3 and 3' and provided with transparent electrodes 2 and 2' are placed facing each other with a constant interval maintained such that the respective transparent electrodes 2 and 2' are orthogonal to each other. After combining and sealing the periphery with sealant 4, 1.5% by weight of an atraquinone dye, for example, is added into the gap. A nematic liquid crystal 6 having negative conductivity anisotropy doped with is sealed. Thereafter, a reflective plate 5 is attached to the back surface (the side where the transparent electrode is not provided) of the glass substrate 1'. In this way, the liquid crystal display panel is completed. This liquid crystal display panel exhibited excellent performance with no alignment unevenness and good visibility. The results are shown in Table 1 as Example 1. Table 1 shows vinylidene fluoride plasma polymerized films, trifluoroacryloyl fluoride plasma polymerized films, 2,
The performance of the liquid crystal display panel constructed as described above and made using the 2,2-trifluoroethyl acrylate plasma polymerized film was also shown in Examples 2 to 2, respectively.
Shown as 4. Table 1 also shows, as a comparative example, the results of forming a 1μ thick alignment film of lecithin, which is a conventional example of a vertical alignment film, by spin coating, and producing a liquid crystal display panel similar to Examples 1 to 4 above. show. As a reference example, the performance of a negative display panel using the same dye and a liquid crystal having positive dielectric anisotropy is also listed in Table 1.
【表】【table】
【表】
発明の効果
上記表１から明らかな如く、本発明のプラズマ
重合膜を液晶の垂直配向用液晶配向膜として用い
た液晶表示パネルは、配向斑がなく、色のコント
ラストが良く、視認性も良好であるというすぐれ
た性能を示す。また配向膜形成に際して特別な基
板洗浄を必要とせず、製造工程の簡略化ができる
ことが判つた。これに対し、参考例として示した
ポリイミドを配向膜としたゲスト−ホスト型のカ
ラー表示用液晶表示パネルは配向斑はないものの
ネガ表示のために反射型で用いる場合、光量が少
なくなり視認性が悪く視角依存性を有するという
欠点を有していた。一方レシチン膜を用いた従来
の垂直配向用の液晶表示パネルでは配向斑があ
り、しかもカラーコントラストもあまり高くな
く、劣つていることが判る。従つて本発明の配向
膜はすぐれたカラーコントラストを有する液晶デ
イスプレーが可能となる。[Table] Effects of the Invention As is clear from Table 1 above, a liquid crystal display panel using the plasma polymerized film of the present invention as a liquid crystal alignment film for vertical alignment of liquid crystals has no alignment unevenness, good color contrast, and high visibility. It also shows excellent performance. It has also been found that no special cleaning of the substrate is required when forming the alignment film, and the manufacturing process can be simplified. On the other hand, the guest-host type liquid crystal display panel for color display using polyimide as an alignment film shown as a reference example has no alignment spots, but when used as a reflective type for negative display, the amount of light decreases and visibility becomes poor. It had the disadvantage of having poor viewing angle dependence. On the other hand, the conventional vertically aligned liquid crystal display panel using a lecithin film has alignment irregularities and the color contrast is not very high, indicating that it is inferior. Therefore, the alignment film of the present invention enables a liquid crystal display with excellent color contrast.
第１図は液晶配向膜をグロー放電により製造す
る方法を示す説明図であり、第２図は液晶表示パ
ネルの構成の説明図である。
１，１′はガラス基板、２，２′は透明電極、
３，３′は液晶配向膜、４は封止材、５は反射板、
６は液晶、１０は上部電極、１１は下部電極、１
２はベルジヤー、１３は高周波マツチングユニツ
ト、１４は高周波電源、１６は真空ポンプ、１７
はガラスボンベ、１８はガス導管、１９はベルジ
ヤー内部。
FIG. 1 is an explanatory diagram showing a method of manufacturing a liquid crystal alignment film by glow discharge, and FIG. 2 is an explanatory diagram of the structure of a liquid crystal display panel. 1, 1' are glass substrates, 2, 2' are transparent electrodes,
3, 3' are liquid crystal alignment films, 4 is a sealing material, 5 is a reflective plate,
6 is a liquid crystal, 10 is an upper electrode, 11 is a lower electrode, 1
2 is a bell gear, 13 is a high frequency matching unit, 14 is a high frequency power supply, 16 is a vacuum pump, 17
is a glass cylinder, 18 is a gas conduit, and 19 is inside a bell jar.
Claims (1)
設けた液晶配向膜であつて、上記液晶配向膜が、
パーフルオロブテン−２、ヘキサンフルオロブタ
ジエン−１，３、ヘキサフルオロブチン−２、弗
素化ビニリデン、ヘキサフルオロシクロブテン、
２，２，２−トリフルオロエチルアクリレート、
トリフルオロアクリロイルフルオライドよりなる
群から選択した１種以上である有機化合物のグロ
ー放電によるプラズマ重合によつて形成された膜
である垂直配向用液晶配向膜。1 A liquid crystal alignment film provided to cover a glass substrate provided with a transparent electrode, the liquid crystal alignment film comprising:
Perfluorobutene-2, hexanefluorobutadiene-1,3, hexafluorobutyne-2, vinylidene fluoride, hexafluorocyclobutene,
2,2,2-trifluoroethyl acrylate,
A liquid crystal alignment film for vertical alignment, which is a film formed by plasma polymerization using glow discharge of one or more organic compounds selected from the group consisting of trifluoroacryloyl fluoride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24720483A JPS60136717A (en) | 1983-12-26 | 1983-12-26 | Liquid crystal orienting film for vertical orientation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24720483A JPS60136717A (en) | 1983-12-26 | 1983-12-26 | Liquid crystal orienting film for vertical orientation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60136717A JPS60136717A (en) | 1985-07-20 |
| JPH0117136B2 true JPH0117136B2 (en) | 1989-03-29 |
Family
ID=17159994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24720483A Granted JPS60136717A (en) | 1983-12-26 | 1983-12-26 | Liquid crystal orienting film for vertical orientation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60136717A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62247334A (en) * | 1986-04-21 | 1987-10-28 | Stanley Electric Co Ltd | Production of liquid crystal display element |
| JPS62250417A (en) * | 1986-04-23 | 1987-10-31 | Stanley Electric Co Ltd | Production of liquid crystal display element |
| JPS62265621A (en) * | 1986-05-13 | 1987-11-18 | Stanley Electric Co Ltd | Production of liquid crystal display element |
| JPS62269117A (en) * | 1986-05-16 | 1987-11-21 | Stanley Electric Co Ltd | Vertical orientation-treatment of liquid crystal display element |
| JP2722832B2 (en) * | 1991-02-22 | 1998-03-09 | 日本電気株式会社 | Liquid crystal display device |
| WO1999028963A1 (en) * | 1997-11-28 | 1999-06-10 | Nippon Zeon Co., Ltd. | Method of forming insulating film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5087669A (en) * | 1973-11-30 | 1975-07-14 | ||
| JPS50101049A (en) * | 1973-10-19 | 1975-08-11 | ||
| JPS5885417A (en) * | 1981-11-04 | 1983-05-21 | ヒューズ・エアクラフト・カンパニー | Manufacture of conductive substrate for parallel array of liquid crystal material |
-
1983
- 1983-12-26 JP JP24720483A patent/JPS60136717A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50101049A (en) * | 1973-10-19 | 1975-08-11 | ||
| JPS5087669A (en) * | 1973-11-30 | 1975-07-14 | ||
| JPS5885417A (en) * | 1981-11-04 | 1983-05-21 | ヒューズ・エアクラフト・カンパニー | Manufacture of conductive substrate for parallel array of liquid crystal material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60136717A (en) | 1985-07-20 |
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