JPH1114990A - Liquid crystal panel and its manufacture - Google Patents
Liquid crystal panel and its manufactureInfo
- Publication number
- JPH1114990A JPH1114990A JP9161734A JP16173497A JPH1114990A JP H1114990 A JPH1114990 A JP H1114990A JP 9161734 A JP9161734 A JP 9161734A JP 16173497 A JP16173497 A JP 16173497A JP H1114990 A JPH1114990 A JP H1114990A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- transparent substrate
- display panel
- alignment
- crystal display
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はハイブリッド配向し
た液晶セルを有する液晶表示パネル及びその製造方法に
関するものである。[0001] 1. Field of the Invention [0002] The present invention relates to a liquid crystal display panel having a liquid crystal cell with hybrid alignment and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】従来の液晶表示パネルには、ＴＮモード
やＳＴＮモードの液晶セルが用いられており、このよう
な液晶セルの両面に一対の偏光板を配置した透過型の液
晶表示パネルや、反射板や反射電極を配置した反射型の
液晶表示パネルが用いられていた。2. Description of the Related Art A TN mode or STN mode liquid crystal cell is used in a conventional liquid crystal display panel, and a transmission type liquid crystal display panel having a pair of polarizing plates disposed on both sides of such a liquid crystal cell, A reflection type liquid crystal display panel on which a reflection plate and a reflection electrode are arranged has been used.
【０００３】前記従来の液晶表示パネルには、ツイスト
配向処理が施されており、この液晶表示パネルは電圧が
印加されていない状態ではツイスト配向のままである
が、電圧が印加されると液晶が立ち上がり配向となり、
２つの配向状態を有するものである。このような液晶表
示パネルは、前記偏光板の効果とあいまって入射光を透
過させて明表示としたり、入射光を遮断して暗表示とす
ることができるため、白黒表示を行うことができる。[0003] The conventional liquid crystal display panel is subjected to a twist alignment treatment, and this liquid crystal display panel remains twisted when no voltage is applied, but when a voltage is applied, the liquid crystal is twisted. It becomes a rising orientation,
It has two orientation states. Such a liquid crystal display panel can perform a black and white display by transmitting incident light to provide a bright display or blocking incident light to provide a dark display in combination with the effect of the polarizing plate.
【０００４】また、上述のようにＴＮモードやＳＴＮモ
ードの液晶表示パネルでは、第１，第２の配向膜にそれ
ぞれ配向処理を施しているため、基板近傍の液晶分子の
アンカリングが強く安定した配向状態が得られ、モノド
メイン配向となり配向欠陥のない表示ができる。Further, in the TN mode and STN mode liquid crystal display panels as described above, since the first and second alignment films are each subjected to the alignment treatment, the anchoring of the liquid crystal molecules near the substrate is strong and stable. An alignment state is obtained, and the display becomes a mono-domain alignment and can be displayed without alignment defects.
【０００５】[0005]
【発明が解決しようとする課題】しかし、上述のような
ＴＮモードやＳＴＮモードの液晶表示パネルにおいて
は、視野角が狭く、応答が遅いといった問題があった。However, the liquid crystal display panel of the TN mode or the STN mode as described above has a problem that the viewing angle is narrow and the response is slow.
【０００６】近年では、このような視野角や応答速度を
改善する液晶表示パネルとして、電圧が無印加の状態で
も液晶が立ち上がり配向となるモードを利用した、いわ
ゆるハイブリッド配向の液晶セルからなる液晶表示パネ
ルの研究開発が進められており、このようなハイブリッ
ド配向の液晶表示パネルにおいても、上記ＴＮモードや
ＳＴＮモードのように、透過型の液晶表示パネル（T.Sa
itoh, Y.Kobayashi,Y.Iimura, S.Kobayashi:1996SID,
PP171SID96DIGEST参照）や反射型の液晶表示パネル（T.
Uchida, T.Ishinabe, M.Suzuki:1996SID,PP618SID96D
IGEST参照）が提案されている。In recent years, as a liquid crystal display panel for improving such a viewing angle and a response speed, a liquid crystal display comprising a so-called hybrid alignment liquid crystal cell utilizing a mode in which liquid crystal rises and is aligned even when no voltage is applied. Research and development of panels have been promoted, and even in such a hybrid alignment liquid crystal display panel, a transmission type liquid crystal display panel (T.
itoh, Y.Kobayashi, Y.Iimura, S.Kobayashi: 1996SID,
PP171SID96DIGEST) and reflective liquid crystal display panel (T.
Uchida, T. Ishinabe, M. Suzuki: 1996SID, PP618SID96D
IGEST) has been proposed.
【０００７】図５，図６は、従来のハイブリット配向の
液晶表示パネルを示す。図５は、従来のハイブリット配
向の液晶表示パネルの断面図を示したものである。FIGS. 5 and 6 show a conventional hybrid alignment liquid crystal display panel. FIG. 5 is a cross-sectional view of a conventional hybrid alignment liquid crystal display panel.
【０００８】第１の電極２が形成された第１の透明基板
１に、略平行配向の第１の配向膜３を塗布する。また、
第２の電極４の形成された第２の透明基板５には、略垂
直配向の第２の配向膜６を塗布する。その後、第１の配
向膜３には、略平行配向となるように、例えば、ラビン
グ処理やグレーティング法やＳｉＯ斜方蒸着法などの配
向処理を施す。[0008] A first alignment film 3 having a substantially parallel orientation is applied to the first transparent substrate 1 on which the first electrode 2 is formed. Also,
On the second transparent substrate 5 on which the second electrode 4 is formed, a second alignment film 6 having a substantially vertical alignment is applied. After that, the first alignment film 3 is subjected to an alignment process such as a rubbing process, a grating method, or a SiO oblique deposition method so that the first alignment film 3 has a substantially parallel alignment.
【０００９】このように構成された第１，第２の透明基
板１，５をそれぞれ第１，第２の配向膜３，６が向かい
合せになるように対向させ、スペーサ７を介してシール
剤８にて接着し、液晶９を注入して、液晶セル１０を形
成する。The first and second transparent substrates 1 and 5 thus configured are opposed to each other so that the first and second alignment films 3 and 6 face each other. Then, a liquid crystal 9 is injected to form a liquid crystal cell 10.
【００１０】このように構成された液晶セル１０の液晶
の配向状態の概略図を図６に示す。液晶９が満たされた
液晶層において液晶分子１１は、第１の配向膜３の側で
はほぼ第１の透明基板１と平行となっており、第２の配
向膜６の側へ向かって徐々に傾きを大きくしてゆき、第
２の配向膜６の側の液晶分子１１は第２の透明基板５と
ほぼ垂直となるようなハイブリッド配向となっている。FIG. 6 is a schematic diagram showing the alignment state of the liquid crystal of the liquid crystal cell 10 configured as described above. In the liquid crystal layer filled with the liquid crystal 9, the liquid crystal molecules 11 are substantially parallel to the first transparent substrate 1 on the side of the first alignment film 3 and gradually approach the side of the second alignment film 6. As the tilt is increased, the liquid crystal molecules 11 on the side of the second alignment film 6 are in a hybrid alignment such that they are substantially perpendicular to the second transparent substrate 5.
【００１１】しかしながら、この液晶層においては、液
晶分子１１は、ａ1〜ａnのように矢印Ａで示される傾き
方向をもつ液晶分子１１と、ｂ1〜ｂnのように矢印Ｂで
示される傾き方向をもつ液晶分子１１とが混在してい
る。そのため第２の配向膜６の側の液晶分子１１のアン
カリングが弱くなり、安定した均一な配向状態が得られ
ないという問題があった。[0011] However, in the liquid crystal layer, liquid crystal molecules 11, the liquid crystal molecules 11 having a tilt direction indicated by arrow A as a 1 ~a n, indicated by the arrow B as b 1 ~b n And the liquid crystal molecules 11 having a tilt direction that is different from each other. Therefore, the anchoring of the liquid crystal molecules 11 on the side of the second alignment film 6 becomes weak, and there is a problem that a stable and uniform alignment state cannot be obtained.
【００１２】したがって、上記液晶セル１０を有する液
晶表示パネルは、２つの配向が混在するためディスクリ
ネーションが発生し、表示品質が低下するという問題が
あった。Therefore, the liquid crystal display panel having the liquid crystal cell 10 has a problem that disclination occurs due to a mixture of two orientations, thereby deteriorating display quality.
【００１３】本発明は前記問題点を解決し、ハイブリッ
ト配向の液晶表示パネルにおいて、ディスクリネーショ
ンの発生を抑え、配向欠陥のない表示ができる液晶表示
パネルおよびその製造方法を提供するものである。An object of the present invention is to provide a liquid crystal display panel capable of suppressing the occurrence of disclination and performing display without alignment defects in a liquid crystal display panel of a hybrid orientation, and a method of manufacturing the same.
【００１４】[0014]
【課題を解決するための手段】本発明は、ハイブリット
配向の液晶表示パネルの液晶セル内において、液晶分子
の傾き方向をすべて同じ方向にすることを特徴とする。The present invention is characterized in that, in a liquid crystal cell of a hybrid alignment liquid crystal display panel, the inclination directions of liquid crystal molecules are all the same.
【００１５】この本発明によると、液晶分子の配向状態
が安定し、配向欠陥のない表示ができる。According to the present invention, the alignment state of the liquid crystal molecules is stabilized, and a display free from alignment defects can be performed.
【００１６】[0016]
【発明の実施の形態】本発明の液晶表示パネルは、第１
の電極と液晶分子を略平行配向する第１の配向膜とが順
次形成された第１の透明基板と、第２の電極と液晶分子
を略垂直配向する第２の配向膜とが順次形成された第２
の透明基板とをそれぞれの配向膜どうしが向かい合うよ
うに対向させ、前記第１の透明基板と第２の透明基板と
の間にはハイブリッド配向させた液晶分子を介在させて
液晶セルを形成した液晶表示パネルにおいて、液晶セル
内ではハイブリッド配向した液晶分子の傾き方向を単一
方向に揃えたことを特徴とする。DESCRIPTION OF THE PREFERRED EMBODIMENTS The liquid crystal display panel of the present invention has a first
A first transparent substrate on which an electrode and a first alignment film for substantially parallel alignment of liquid crystal molecules are sequentially formed, and a second electrode and a second alignment film for substantially vertically aligning liquid crystal molecules are sequentially formed. The second
And a transparent substrate having a liquid crystal cell formed by interposing liquid crystal molecules having hybrid alignment between the first transparent substrate and the second transparent substrate. The display panel is characterized in that the tilt directions of the hybrid-aligned liquid crystal molecules are aligned in a single direction in the liquid crystal cell.
【００１７】この構成によると、液晶セル内において液
晶分子の立ち上り方向が２つ存在することがなくなり、
ディスクリネーションの発生が解消されるため、安定し
た配向状態の液晶セルを形成することができ、表示品質
のよい液晶表示パネルを形成することができる。According to this structure, there are no two rising directions of the liquid crystal molecules in the liquid crystal cell.
Since the occurrence of disclination is eliminated, a liquid crystal cell in a stable alignment state can be formed, and a liquid crystal display panel with good display quality can be formed.
【００１８】なお、上記構成においては、第１の配向膜
側の液晶分子のプレチルト角が２°〜８°であることが
好ましく、このような構成にすることで、配向状態をさ
らに安定させることができる。In the above structure, the pretilt angle of the liquid crystal molecules on the first alignment film side is preferably 2 ° to 8 °. With such a structure, the alignment state can be further stabilized. Can be.
【００１９】具体的には、本発明の液晶表示パネルは、
透過型の液晶表示パネルでも反射型の液晶表示パネルで
も良く、透過型の液晶表示パネルを用いる際には、第
１，第２の電極を共に透明電極とし、液晶セル外側の両
面にはそれぞれ偏光板を配置する。この時、液晶セルと
偏光板との間には少なくとも１枚の位相差板が配置され
ることが白黒表示に光学的補正をする点から好ましい。Specifically, the liquid crystal display panel of the present invention comprises:
A transmissive liquid crystal display panel or a reflective liquid crystal display panel may be used. When a transmissive liquid crystal display panel is used, both the first and second electrodes are transparent electrodes, and both surfaces outside the liquid crystal cell are polarized. Place the board. At this time, it is preferable that at least one retardation plate is disposed between the liquid crystal cell and the polarizing plate from the viewpoint of optically correcting a monochrome display.
【００２０】また、反射型の液晶表示パネルを用いる際
には、第１，第２の電極をともに透明電極とし、液晶セ
ルの第１の透明基板の外側には偏光板を配置し、第２の
透明基板の外側には反射板を配置して、前記液晶セルと
偏光板との間には少なくとも１枚の位相差板を配置す
る。なお、前記反射板を用いる代わりに、第２の電極を
反射電極としてもよい。When a reflection type liquid crystal display panel is used, both the first and second electrodes are transparent electrodes, and a polarizing plate is arranged outside the first transparent substrate of the liquid crystal cell. A reflector is disposed outside the transparent substrate, and at least one retardation plate is disposed between the liquid crystal cell and the polarizing plate. Note that the second electrode may be a reflection electrode instead of using the reflection plate.
【００２１】本発明の液晶表示パネルの製造方法は、第
１の電極と液晶分子を略平行配向する第１の配向膜とが
順次形成された第１の透明基板と、第２の電極と液晶分
子を略垂直配向する第２の配向膜とが順次形成された第
２の透明基板とをそれぞれの配向膜どうしが向かい合う
ように対向させ、前記第１の透明基板と第２の透明基板
との間にはハイブリッド配向させた液晶分子を介在させ
て液晶セルを形成した液晶表示パネルを製造するに際
し、液晶セル内ではハイブリッド配向した液晶分子の傾
き方向を単一方向に揃うように配向処理を施すことを特
徴とする。According to the method of manufacturing a liquid crystal display panel of the present invention, a first transparent substrate on which a first electrode and a first alignment film for aligning liquid crystal molecules substantially in parallel are sequentially formed, a second electrode and a liquid crystal. A second transparent substrate on which a second alignment film for substantially vertically aligning molecules is sequentially formed is opposed to each other so that the respective alignment films face each other, and the first transparent substrate and the second transparent substrate are When manufacturing a liquid crystal display panel in which a liquid crystal cell is formed by interposing liquid crystal molecules with hybrid alignment therebetween, an alignment treatment is performed in the liquid crystal cell so that the tilt direction of the liquid crystal molecules with hybrid alignment is aligned in a single direction. It is characterized by the following.
【００２２】このような配向処理を施すことで、液晶セ
ル内における、ディスクリネーションの発生を抑えるこ
とができる。また、液晶を注入する際には、第１の配向
膜側の液晶分子の長軸の基板面への射影方向と逆方向に
液晶を注入することで、第２の配向膜側の液晶分子の傾
き方向を第１の配向膜側の液晶分子の傾き方向に揃うよ
うにすることができる。By performing such an alignment treatment, the occurrence of disclination in the liquid crystal cell can be suppressed. Further, when injecting the liquid crystal, the liquid crystal is injected in a direction opposite to the direction in which the long axis of the liquid crystal molecules on the first alignment film side is projected onto the substrate surface. The tilt direction can be made to be aligned with the tilt direction of the liquid crystal molecules on the first alignment film side.
【００２３】図７は液晶を注入する際の第１の透明基板
１側の状態を示したものである。液晶分子１１の長軸を
基板面への投影方向とは、矢印Ｆ方向を指し、矢印Ｆ方
向と逆向きの矢印Ｇ方向に液晶が注入される。FIG. 7 shows a state on the first transparent substrate 1 side when the liquid crystal is injected. The direction in which the major axis of the liquid crystal molecules 11 is projected onto the substrate surface is in the direction of arrow F, and the liquid crystal is injected in the direction of arrow G opposite to the direction of arrow F.
【００２４】本発明における配向処理としては、ラビン
グ処理やグレーティング法やＳｉＯ斜方蒸着法などのよ
うに一般的な配向処理をおこなうことができるが、その
際には、液晶の注入方向の逆方向と、第１の配向膜側の
液晶分子の長軸の基板面への射影方向とが一致するよう
に配向処理を行う。特にラビング処理を行った際には、
液晶を注入する際に第１の配向膜のラビング方向と逆方
向に液晶を注入する。この方法により、第２の配向膜側
の液晶分子の傾き方向を第１の配向膜側の液晶分子の傾
き方向に揃うようにすることができる。As the alignment treatment in the present invention, a general alignment treatment such as a rubbing treatment, a grating method or a SiO oblique deposition method can be performed. Then, the alignment process is performed such that the direction of projection of the long axis of the liquid crystal molecules on the first alignment film side onto the substrate surface coincides. Especially when rubbing is performed,
When the liquid crystal is injected, the liquid crystal is injected in a direction opposite to the rubbing direction of the first alignment film. According to this method, the tilt direction of the liquid crystal molecules on the side of the second alignment film can be aligned with the tilt direction of the liquid crystal molecules on the side of the first alignment film.
【００２５】また、第１の配向膜と第２の配向膜とに配
向処理を施すに際し、それぞれのラビング方向を反平行
方向にすることで、第１，第２の配向膜側の液晶分子の
傾きを、液晶セル内で単一方向に揃うようにすることが
できる。When the first alignment film and the second alignment film are subjected to the alignment treatment, the rubbing directions thereof are set in antiparallel directions, so that the liquid crystal molecules on the first and second alignment films can be aligned. The inclination can be made uniform in a single direction in the liquid crystal cell.
【００２６】なお、ラビング方向を反平行方向にすると
は、ラビング処理を施した第１，第２の透明基板を貼り
合わせた際に、それぞれのラビング方向が逆向きになる
ようにすることである。The term "anti-parallel rubbing direction" means that the rubbing directions are opposite to each other when the rubbed first and second transparent substrates are bonded together. .
【００２７】さらに、第１の透明基板側の液晶分子のプ
レチルト角が２°〜８°であることで、より単一方向に
揃うハイブリッド配向が得られる。以下、本発明の各実
施の形態を図１〜図４を用いて説明する。Furthermore, when the pretilt angle of the liquid crystal molecules on the side of the first transparent substrate is 2 ° to 8 °, a hybrid orientation that is more uniform in a single direction can be obtained. Hereinafter, embodiments of the present invention will be described with reference to FIGS.
【００２８】（実施の形態１）図１，図２は、本発明の
実施の形態１を示す。本発明の液晶表示パネルの構成
は、上記の図５に示した従来のハイブリッド配向の液晶
表示パネルとほぼ同様の構成であるが、第１の配向膜
３、および第２の配向膜６に、液晶分子の傾き方向が液
晶セル１０内において全て同一方向となるように配向処
理を施した点で異なる。(Embodiment 1) FIGS. 1 and 2 show Embodiment 1 of the present invention. The configuration of the liquid crystal display panel of the present invention is almost the same as the configuration of the conventional hybrid alignment liquid crystal display panel shown in FIG. 5 described above, except that the first alignment film 3 and the second alignment film 6 include: The difference is that the alignment process is performed so that the tilt directions of the liquid crystal molecules are all the same in the liquid crystal cell 10.
【００２９】詳しくは、第１の透明基板１には略平行配
向の第１の配向膜３を塗布し、電極４の形成された第２
の透明基板５には、略垂直配向の第２の配向膜６を塗布
してラビング処理による配向処理を施し、それぞれのラ
ビング方向が反平行方向となるように対向させて張り合
わせた点で異なり、その他の構成においては、上記図４
とほぼ同じ構成である。More specifically, a first alignment film 3 having a substantially parallel alignment is applied to the first transparent substrate 1, and a second alignment film 3 on which an electrode 4 is formed is formed.
A transparent substrate 5 is coated with a second alignment film 6 having a substantially vertical orientation, subjected to an alignment treatment by a rubbing treatment, and bonded together so that the respective rubbing directions are antiparallel. In other configurations, FIG.
It is almost the same configuration as.
【００３０】図１は、このように構成された液晶セル１
０における液晶分子１１の配向状態を示したものであ
る。液晶セル１０内においては、液晶分子１１は全て矢
印Ｃで示されるように同一の傾き方向となるような配向
状態となっており、異なった傾き方向を有する液晶分子
１１が存在しないため、安定した配向状態が得られる。FIG. 1 shows a liquid crystal cell 1 constructed as described above.
2 shows the alignment state of the liquid crystal molecules 11 at 0. In the liquid crystal cell 10, the liquid crystal molecules 11 are in an alignment state in which all the liquid crystal molecules 11 have the same tilt direction as shown by the arrow C. Since no liquid crystal molecules 11 having different tilt directions exist, the liquid crystal molecules 11 are stable. An orientation state is obtained.
【００３１】また、図２に示すように、本発明において
は、液晶セル１０の第１の透明基板１の側には位相差板
１２及び偏光板１３を順次積層し、第２の透明基板５の
側には偏光板１４を配置して液晶表示パネル２２を作製
した。As shown in FIG. 2, in the present invention, a retardation plate 12 and a polarizing plate 13 are sequentially laminated on the side of the first transparent substrate 1 of the liquid crystal cell 10, and the second transparent substrate 5 The liquid crystal display panel 22 was produced by disposing the polarizing plate 14 on the side of.
【００３２】なお、図中のプレチルト角θ１，θ２およ
びξ１〜ξ３は以下により定義されるものである。 θ１：矢印２１で示される第１の配向膜３側の液晶分子
１１の配向方向と、第１の配向膜側の液晶分子の長軸の
基板面への射影方向の線（以下「基準線」と称す。）１
７とのなす角 θ２：矢印１９で示される第２の配向膜６側の液晶分子
１１の配向方向と基準線１８とのなす角 ξ１：偏光板１３の透過軸１５と基準線１７とのなす角 ξ２：位相差板１２の遅相軸１６と基準線１７とのなす
角 ξ３：偏光板１４の透過軸１５と基準線１７とのなす角 このような透過型の液晶表示パネルにおいて、プレチル
ト角θ１の好ましい値を確認するために以下の実施例１
〜実施例５では、プレチルト角θ１を変化させて液晶表
示パネル２２に与える影響の有無を調べた。 （実施例１）第１の透明基板１と第２の透明基板５との
間には、粒径４．０μｍのスペーサ７（日本触媒（株）
社製、エポスター）を散布し、周辺部にシール剤８（三
井東圧化学（株）社製、ストラクトボンド）を印刷して
両透明基板１，５のラビング方向が反平行方向となるよ
うに対向させて張り合わせた。シール剤８を硬化した空
のセルに、ネマティック液晶９（ロディック（株）社
製、ＲＤＰ−６０２５７）を真空注入して液晶の屈折率
異方性Δｎが０．１３６、液晶の誘電率異方性Δεが９
のハイブリッド配向からなる液晶セル１０を作製した。The pretilt angles θ1, θ2 and # 1 to # 3 in the drawing are defined as follows. θ1: a line between the alignment direction of the liquid crystal molecules 11 on the first alignment film 3 side indicated by the arrow 21 and the direction of projection of the long axis of the liquid crystal molecules on the first alignment film 3 onto the substrate surface (hereinafter referred to as “reference line”) 1)
7, the angle between the alignment direction of the liquid crystal molecules 11 on the side of the second alignment film 6 indicated by the arrow 19 and the reference line 18. ξ1: the angle between the transmission axis 15 of the polarizing plate 13 and the reference line 17. Angle ξ2: Angle between slow axis 16 of retardation plate 12 and reference line 17 ξ3: Angle between transmission axis 15 of polarizing plate 14 and reference line 17 In such a transmission type liquid crystal display panel, the pretilt angle Example 1 below for confirming a preferable value of θ1
In the fifth to fifth embodiments, the presence or absence of the influence on the liquid crystal display panel 22 by changing the pretilt angle θ1 was examined. Example 1 A spacer 7 having a particle diameter of 4.0 μm (Nippon Shokubai Co., Ltd.) was provided between the first transparent substrate 1 and the second transparent substrate 5.
And a sealant 8 (manufactured by Mitsui Toatsu Chemical Co., Ltd., Stract Bond) is printed on the periphery so that the rubbing directions of the transparent substrates 1 and 5 are antiparallel. They were attached facing each other. The nematic liquid crystal 9 (RDP-60257, manufactured by Roddick Co., Ltd.) is vacuum-injected into the empty cell where the sealant 8 is cured, and the liquid crystal has a refractive index anisotropy Δn of 0.136 and a liquid crystal dielectric anisotropy. The property Δε is 9
A liquid crystal cell 10 having a hybrid orientation of was prepared.
【００３３】この液晶セル１０の第１の透明基板１の側
には、位相差板１２と偏光板１３とを順次配置し、第２
の透明基板５の側には偏光板１４を配置して透過型の液
晶表示パネル２２を作製した。On the first transparent substrate 1 side of the liquid crystal cell 10, a retardation plate 12 and a polarizing plate 13 are sequentially arranged,
The polarizing plate 14 was disposed on the side of the transparent substrate 5 to produce a transmission type liquid crystal display panel 22.
【００３４】なお、第１の配向膜３としてはポリイミド
平行配向膜（日本合成ゴム（株）社製、ＡＬ−１０５
１）を用い、プレチルト角θ１を１°とし、第２の配向
膜６としては、ポリイミド垂直配向膜（日産化学工業
（株）社製、ＲＮ−７８３）を用い、プレチルト角θ２
を８９°〜９０°とした。As the first alignment film 3, a polyimide parallel alignment film (AL-105, manufactured by Nippon Synthetic Rubber Co., Ltd.)
1), the pretilt angle θ1 is set to 1 °, and as the second alignment film 6, a polyimide vertical alignment film (RN-783, manufactured by Nissan Chemical Industries, Ltd.) is used.
Was set to 89 ° to 90 °.
【００３５】また、液晶表示パネル２２におけるξ１〜
ξ３の値はそれぞれξ１＝４５°、ξ２＝９０°、ξ３
＝１３５°とした。 （実施例２）第１の配向膜３としてポリイミド平行配向
膜（日本合成ゴム（株）社製、 ＡＬ−５４１７を用い
て、プレチルト角θ１を３°とした。The liquid crystal display panel 22 has # 1 to # 1.
The values of ξ3 are ξ1 = 45 °, ξ2 = 90 °, and ξ3, respectively.
= 135 °. (Example 2) A polyimide parallel alignment film (AL-5417, manufactured by Japan Synthetic Rubber Co., Ltd.) was used as the first alignment film 3, and the pretilt angle θ1 was set to 3 °.
【００３６】そしてそれ以外は実施例１と同様にして液
晶表示パネル２２を作製した。 （実施例３）第１の配向膜３としてポリイミド平行配向
膜（日産化学工業（株）社製、ＳＥ−７９９２）を用い
て、プレチルト角θ１を５°とした。A liquid crystal display panel 22 was manufactured in the same manner as in Example 1 except for the above. Example 3 The pretilt angle θ1 was set to 5 ° using a polyimide parallel alignment film (SE-7992, manufactured by Nissan Chemical Industries, Ltd.) as the first alignment film 3.
【００３７】そしてそれ以外は実施例１と同様にして液
晶表示パネル２２を作製した。 （実施例４）第１の配向膜３としてポリイミド平行配向
膜（日産化学工業（株）社製、 ＳＥ−７４９２）を用
いて、プレチルト角θ１を７°とした。Then, a liquid crystal display panel 22 was manufactured in the same manner as in Example 1 except for the above. (Example 4) As the first alignment film 3, a polyimide parallel alignment film (SE-7492, manufactured by Nissan Chemical Industries, Ltd.) was used, and the pretilt angle θ1 was set to 7 °.
【００３８】そしてそれ以外は実施例１と同様にして液
晶表示パネル２２を作製した。 （実施例５）第１の配向膜３としてポリイミド平行配向
膜（日本合成ゴム（株）社製、ＪＡＬＳ−２４６）を用
いて、プレチルト角θ１を９°とした。A liquid crystal display panel 22 was manufactured in the same manner as in Example 1 except for the above. Example 5 A pre-tilt angle θ1 was 9 ° using a polyimide parallel alignment film (JALS-246, manufactured by Japan Synthetic Rubber Co., Ltd.) as the first alignment film 3.
【００３９】そしてそれ以外は実施例１と同様にして液
晶表示パネル２２を作製した。実施例２〜実施例４の液
晶表示パネル２２における液晶分子１１の配向状態は、
図１に示すように全ての液晶分子１１の傾き方向が同じ
となり、安定した配向状態が得られた。実施例１の液晶
表示パネル２２における液晶分子１１は、図５に示すよ
うな２つの配向が混在したものとなり、配向欠陥のある
表示となった。また、実施例５の液晶表示パネル２２に
おける液晶分子１１は、すべて垂直配向に近い状態とな
ったため、白の暗い表示となった。Except for this, a liquid crystal display panel 22 was manufactured in the same manner as in Example 1. The alignment state of the liquid crystal molecules 11 in the liquid crystal display panel 22 of Example 2 to Example 4 is
As shown in FIG. 1, the inclination directions of all the liquid crystal molecules 11 were the same, and a stable alignment state was obtained. The liquid crystal molecules 11 in the liquid crystal display panel 22 of Example 1 had a mixture of two orientations as shown in FIG. 5, and had a display with an alignment defect. Further, all the liquid crystal molecules 11 in the liquid crystal display panel 22 of Example 5 were in a state close to the vertical alignment, so that a dark white display was obtained.
【００４０】均一なハイブリッド状態となった実施例２
〜実施例３の液晶表示パネル２２をライトボックス上に
置き、３０Ｈｚの方形波電圧を印加した。印加電圧が０
〜１Ｖでは液晶表示パネル２２は白表示となり、印加電
圧が３〜５Ｖではほぼ黒表示となった。Embodiment 2 in which a uniform hybrid state is achieved
The liquid crystal display panel 22 of Example 3 was placed on a light box, and a square wave voltage of 30 Hz was applied. Applied voltage is 0
At ~ 1 V, the liquid crystal display panel 22 displayed white, and when the applied voltage was 3-5 V, almost black display.
【００４１】従って、本発明においてはプレチルト角θ
１を２°〜８°の範囲とすることで、より良好な白黒表
示が得られることがわかる。また、上記（実施の形態
１）では、液晶セル１０と偏光板１３との間に１枚の位
相差板１２を配置したが、この位相差板１２は液晶セル
１０の表面に直接配置したり、複数枚を配置しても良
い。Accordingly, in the present invention, the pretilt angle θ
It can be seen that by setting 1 to the range of 2 ° to 8 °, a better black and white display can be obtained. Further, in the above (Embodiment 1), one retardation plate 12 is disposed between the liquid crystal cell 10 and the polarizing plate 13, but this retardation plate 12 may be disposed directly on the surface of the liquid crystal cell 10. Alternatively, a plurality of sheets may be arranged.
【００４２】なお、上記（実施の形態１）において、さ
らにより白黒の着色を抑制した表示とするためには、液
晶セル１０の隣接位相差板の遅相軸１６を、液晶セル１
０の略平行配向の配向膜３における液晶分子配向方向に
対して９０°±１０°ずらし、さらに偏光板１３の通過
軸１５を、前記偏光板１３の隣接位相差板の遅相軸１６
に対して４５°±１０°斜めにずらすことが望ましい。In the above (Embodiment 1), in order to achieve a display in which black and white coloring is further suppressed, the slow axis 16 of the retardation plate adjacent to the liquid crystal cell 10 is set to
0 is shifted by 90 ° ± 10 ° with respect to the liquid crystal molecule alignment direction in the substantially parallel alignment film 3, and the passing axis 15 of the polarizing plate 13 is shifted to the slow axis 16 of the phase difference plate adjacent to the polarizing plate 13.
Is desirably shifted by 45 ° ± 10 °.
【００４３】なお、上記（実施の形態１）では、誘電異
方性が正の液晶を用いたが、誘電異方性が負の液晶を用
いても良い。また、第１の配向膜の配向処理はラビング
処理によって行ったが、本発明はこれに限定されるもの
ではなく、液晶セル１０内において全ての液晶分子の立
ち上り方向が同一方向となるものであれば、一般に用い
られているグレーティング法やＳｉＯ斜方蒸着法などの
配向処理法であってもよい。In the above (Embodiment 1), a liquid crystal having a positive dielectric anisotropy is used, but a liquid crystal having a negative dielectric anisotropy may be used. Further, the alignment treatment of the first alignment film was performed by a rubbing treatment. However, the present invention is not limited to this, and any liquid crystal molecules in the liquid crystal cell 10 may have the same rising direction. For example, an alignment treatment method such as a commonly used grating method or a SiO oblique deposition method may be used.
【００４４】以下、各実施の形態において上記実施の形
態１と同様の構成をなすものについては、同じ番号を用
いる。 （実施の形態２）図３に示すように、実施の形態２にお
ける液晶表示パネル２３は、上記実施の形態１における
透過型の液晶表示パネル２２とほぼ同様の構成である
が、第２の透明基板５の外側には偏光板１４の代わりに
反射板２４を設けて反射型の液晶表示パネル２３とした
点で異なる。Hereinafter, in each embodiment, the same reference numerals are used for components having the same configuration as in the first embodiment. (Embodiment 2) As shown in FIG. 3, a liquid crystal display panel 23 in Embodiment 2 has substantially the same configuration as the transmissive liquid crystal display panel 22 in Embodiment 1 described above, except that a second transparent panel is used. A different point is that a reflection plate 24 is provided outside the substrate 5 instead of the polarizing plate 14 to form a reflection type liquid crystal display panel 23.
【００４５】このような反射型の液晶表示パネル２３に
おいても、プレチルト角θ１の好ましい値を確認するた
めに以下の実施例６〜１０では、プレチルト角θ１を変
化させて液晶表示パネル２３に与える影響の有無を調べ
た。 （実施例６）実施例１と同様にして液晶セル１０を作製
し、この液晶セル１０の第１の透明基板１の側には、位
相差板１２と偏光板１３とを順次配置し、第２の透明基
板５の側には反射板２４を配置して反射型の液晶表示パ
ネル２３を作製した。In the reflection type liquid crystal display panel 23 as well, in order to confirm a preferable value of the pretilt angle θ1, in the following Examples 6 to 10, the influence on the liquid crystal display panel 23 by changing the pretilt angle θ1 is described. Was examined. (Example 6) A liquid crystal cell 10 was manufactured in the same manner as in Example 1, and a retardation plate 12 and a polarizing plate 13 were sequentially arranged on the first transparent substrate 1 side of the liquid crystal cell 10, A reflective plate 24 was arranged on the side of the transparent substrate 5 of No. 2 to produce a reflective liquid crystal display panel 23.
【００４６】第１の配向膜３としてはポリイミド平行配
向膜（日本合成ゴム（株）社製、ＡＬ−１０５１）を用
い、プレチルト角θ１を１°とし、第２の配向膜６とし
ては、ポリイミド垂直配向膜（日本合成ゴム（株）社
製、ＪＡＬＳ−２０４）を用い、プレチルト角θ２を８
９°〜９０°とした。As the first alignment film 3, a polyimide parallel alignment film (AL-1051 manufactured by Nippon Synthetic Rubber Co., Ltd.) was used, the pretilt angle θ1 was 1 °, and the second alignment film 6 was polyimide. Using a vertical alignment film (JALS-204, manufactured by Japan Synthetic Rubber Co., Ltd.), a pretilt angle θ2 of 8
9 ° to 90 °.
【００４７】また、液晶表示パネル２３におけるξ１〜
ξ３の値はそれぞれξ１＝４５°、ξ２＝９０°とし
た。 （実施例７）第１の配向膜３としてポリイミド平行配向
膜（日本合成ゴム（株）社製、 ＡＬ−５４１７を用い
て、プレチルト角θ１を３°とした。Further, # 1 to # 1 in the liquid crystal display panel 23
The values of ξ3 were ξ1 = 45 ° and ξ2 = 90 °, respectively. (Example 7) A polyimide parallel alignment film (AL-5417, manufactured by Japan Synthetic Rubber Co., Ltd.) was used as the first alignment film 3, and the pretilt angle θ1 was set to 3 °.
【００４８】そしてそれ以外は実施例１と同様にして液
晶表示パネル２３を作製した。 （実施例８）第１の配向膜３としてポリイミド平行配向
膜（日産化学工業（株）社製、ＳＥ−７９９２）を用い
て、プレチルト角θ１を５°とした。A liquid crystal display panel 23 was manufactured in the same manner as in Example 1 except for the above. Example 8 A pre-tilt angle θ1 was set to 5 ° using a polyimide parallel alignment film (SE-7992, manufactured by Nissan Chemical Industries, Ltd.) as the first alignment film 3.
【００４９】そしてそれ以外は実施例１と同様にして液
晶表示パネル２３を作製した。 （実施例９）第１の配向膜３としてポリイミド平行配向
膜（日産化学工業（株）社製、 ＳＥ−７４９２）を用
いて、プレチルト角θ１を７°とした。A liquid crystal display panel 23 was manufactured in the same manner as in Example 1 except for the above. (Example 9) As the first alignment film 3, a polyimide parallel alignment film (SE-7492 manufactured by Nissan Chemical Industries, Ltd.) was used, and the pretilt angle θ1 was set to 7 °.
【００５０】そしてそれ以外は実施例１と同様にして液
晶表示パネル２３を作製した。 （実施例１０）第１の配向膜３としてポリイミド平行配
向膜（日産化学工業（株）社製、ＪＡＬＳ−２４６）を
用いて、プレチルト角θ１を９°とした。A liquid crystal display panel 23 was manufactured in the same manner as in Example 1 except for the above. (Example 10) A pretilt angle θ1 was 9 ° using a polyimide parallel alignment film (JALS-246, manufactured by Nissan Chemical Industries, Ltd.) as the first alignment film 3.
【００５１】そしてそれ以外は実施例１と同様にして液
晶表示パネル２３を作製した。実施例６の液晶分子１１
は、図５に示すような２つの配向が混在したものとな
り、配向欠陥のある表示となった。また、実施例７〜実
施例９の液晶分子１１は、図１に示すように全ての液晶
分子１１の傾き方向が同じで、安定した配向状態が得ら
れた。また、実施例１０は、液晶分子１１がすべて垂直
配向に近い状態となったため、白が暗い表示となった。A liquid crystal display panel 23 was manufactured in the same manner as in Example 1 except for the above. Liquid crystal molecules 11 of Example 6
In FIG. 5, two orientations were mixed as shown in FIG. 5, and a display having orientation defects was obtained. Moreover, in the liquid crystal molecules 11 of Examples 7 to 9, all the liquid crystal molecules 11 had the same inclination direction as shown in FIG. 1, and a stable alignment state was obtained. Further, in Example 10, since all the liquid crystal molecules 11 were in a state close to the vertical alignment, white was displayed darkly.
【００５２】均一なハイブリッド配向の得られた実施例
７〜実施例９の液晶表示パネル２３に、３０Ｈｚの方形
波電圧を印加した。印加電圧が０〜１Ｖでは白表示とな
り、印加電圧が３〜５Ｖではほぼ黒表示のものが得られ
た。従って、均一なハイブリッド配向の液晶表示パネル
は良好な白黒表示を行うことができる。A 30 Hz square wave voltage was applied to the liquid crystal display panels 23 of Examples 7 to 9 in which uniform hybrid alignment was obtained. When the applied voltage was 0 to 1 V, white display was obtained, and when the applied voltage was 3 to 5 V, almost black display was obtained. Therefore, a liquid crystal display panel having a uniform hybrid orientation can perform good black-and-white display.
【００５３】なお、上記（実施の形態２）では、反射板
２４を第２の透明基板５の外側に設けたが、第２の電極
４を反射電極として反射型の液晶表示パネル２３として
もよい。In the above (Embodiment 2), the reflection plate 24 is provided outside the second transparent substrate 5, but the reflection type liquid crystal display panel 23 may be formed by using the second electrode 4 as a reflection electrode. .
【００５４】また、上記（実施の形態２）においても、
さらにより白黒の着色を抑制した表示とするためには、
液晶セル１０の隣接位相差板の遅相軸１６を、液晶セル
１０の略平行配向の配向膜３における液晶分子配向方向
に対して９０°±１０°ずらし、さらに偏光板１３の通
過軸１５を、前記偏光板１３の隣接位相差板の遅相軸１
６に対して４５°±１０°斜めにずらすことが望まし
い。In the above (Embodiment 2),
In order to achieve a display with even more black and white coloring,
The slow axis 16 of the phase difference plate adjacent to the liquid crystal cell 10 is shifted by 90 ° ± 10 ° with respect to the liquid crystal molecule alignment direction in the substantially parallel alignment film 3 of the liquid crystal cell 10, and the passing axis 15 of the polarizing plate 13 is shifted. The slow axis 1 of the phase difference plate adjacent to the polarizing plate 13
It is desirable to shift 45 ° ± 10 ° obliquely with respect to 6.
【００５５】なお、上記（実施の形態２）では、誘電異
方性が正の液晶を用いたが、誘電異方性が負の液晶を用
いても良い。また、第１の配向膜の配向処理はラビング
処理によって行ったが、本発明はこれに限定されるもの
ではなく、液晶セル１０内において全ての液晶分子の立
ち上り方向が同一方向となるものであれば、一般に用い
られているグレーティング法やＳｉＯ斜方蒸着法などの
配向処理法であってもよい。In the above (Embodiment 2), a liquid crystal having a positive dielectric anisotropy is used, but a liquid crystal having a negative dielectric anisotropy may be used. Further, the alignment treatment of the first alignment film was performed by a rubbing treatment. However, the present invention is not limited to this, and any liquid crystal molecules in the liquid crystal cell 10 may have the same rising direction. For example, an alignment treatment method such as a commonly used grating method or a SiO oblique deposition method may be used.
【００５６】（実施の形態３）図２，図４は実施の形態
３を示す。図２に示す透過型の液晶表示パネル２２を作
製するに際し、第１の配向膜３には図４に示すような矢
印Ｄ方向へのラビング処理を施したが、第２の配向膜６
には配向処理を行わなかった。そして、矢印Ｄ方向が液
晶セル１０に液晶１１を注入する際の注入方向矢印Ｅと
反平行方向となるように、第１の透明基板１と第２の透
明基板５とを貼り合わせて液晶セル１０を作製した。(Third Embodiment) FIGS. 2 and 4 show a third embodiment. In manufacturing the transmissive liquid crystal display panel 22 shown in FIG. 2, the first alignment film 3 was subjected to a rubbing treatment in the direction of arrow D as shown in FIG.
No alignment treatment was performed. Then, the first transparent substrate 1 and the second transparent substrate 5 are bonded together so that the direction of arrow D is antiparallel to the direction E of the injection direction when the liquid crystal 11 is injected into the liquid crystal cell 10. 10 was produced.
【００５７】また、第１の配向膜３としてはポリイミド
平行配向膜（日産化学工業（株）社製、ＳＥ−７９９
２）を用い、プレチルト角θ１を５°とした。また、第
２の配向膜６としては、ポリイミド垂直配向膜（日産化
学工業（株）社製、ＲＮ−７８３）を用いたものと、ポ
リイミド垂直配向膜（日本合成ゴム（株）社製、ＪＡＬ
Ｓ−２０４）を用いたものとの２種類の液晶表示パネル
２２（２３）を作製し、プレチルト角θ２はどちらも８
９°〜９０°とした。The first alignment film 3 is a polyimide parallel alignment film (SE-799, manufactured by Nissan Chemical Industries, Ltd.).
Using 2), the pretilt angle θ1 was set to 5 °. As the second alignment film 6, a polyimide vertical alignment film (Nissan Chemical Industry Co., Ltd., RN-783) and a polyimide vertical alignment film (Nippon Synthetic Rubber Co., Ltd., JAL
S-204) and two types of liquid crystal display panels 22 (23) were manufactured, and the pretilt angle θ2 was 8
9 ° to 90 °.
【００５８】そして、それ以外は上記実施の形態１と同
様にして液晶表示パネル２２を作製した。得られた液晶
表示パネル２２（２３）は、いずれも均一なハイブリッ
ド配向のものであった。Other than that, a liquid crystal display panel 22 was manufactured in the same manner as in the first embodiment. Each of the obtained liquid crystal display panels 22 (23) had a uniform hybrid orientation.
【００５９】この２種類の液晶表示パネル２２（２３）
をライトボックス上に置き、３０Ｈｚの方波形電圧を印
加したところ、印加電圧が０〜１Ｖでは白表示となり、
印加電圧が３〜５Ｖではほぼ黒表示が得られた。The two types of liquid crystal display panels 22 (23)
Was placed on a light box and a 30 Hz square waveform voltage was applied. When the applied voltage was 0 to 1 V, white display was obtained.
When the applied voltage was 3 to 5 V, almost black display was obtained.
【００６０】従って、第１の配向膜に施したラビング方
向とは反平行方向に液晶を注入することで、均一なハイ
ブリッド配向の液晶表示パネルが得られる。なお、上記
説明では、実施の形態１における透過型の液晶表示パネ
ル２２について説明したが、この実施の形態３において
は実施の形態２における反射型の液晶表示パネル２３に
ついても同様の効果が得られる。Therefore, by injecting liquid crystal in a direction antiparallel to the rubbing direction applied to the first alignment film, a liquid crystal display panel with uniform hybrid alignment can be obtained. In the above description, the transmissive liquid crystal display panel 22 in the first embodiment has been described. However, in the third embodiment, the same effect can be obtained also in the reflective liquid crystal display panel 23 in the second embodiment. .
【００６１】[0061]
【発明の効果】以上のように本発明の液晶表示パネルに
よれば、液晶セルにおける液晶分子の立ち上がり方向を
すべて同じ方向とし、均一な配向状態とすることで均一
なハイブリッド配向の液晶表示パネルが得られ、表示品
質のよい液晶表示パネルを得ることができる。As described above, according to the liquid crystal display panel of the present invention, all the rising directions of the liquid crystal molecules in the liquid crystal cell are set to the same direction, and the liquid crystal display panel of uniform hybrid alignment is obtained. Thus, a liquid crystal display panel with good display quality can be obtained.
【図１】実施の形態１における液晶セルの配向状態を示
す断面図FIG. 1 is a cross-sectional view illustrating an alignment state of a liquid crystal cell in Embodiment 1.
【図２】実施の形態１における透過型の液晶表示パネル
の概略図FIG. 2 is a schematic view of a transmissive liquid crystal display panel in Embodiment 1.
【図３】実施の形態２における反射型の液晶表示パネル
の概略図FIG. 3 is a schematic diagram of a reflective liquid crystal display panel in Embodiment 2.
【図４】実施の形態３における液晶表示パネルの概略図FIG. 4 is a schematic diagram of a liquid crystal display panel in Embodiment 3.
【図５】従来の液晶表示パネルの断面図FIG. 5 is a cross-sectional view of a conventional liquid crystal display panel.
【図６】従来の液晶表示パネルの配向状態を示す断面図FIG. 6 is a sectional view showing an alignment state of a conventional liquid crystal display panel.
【図７】本発明の第１の透明基板側の液晶分子の状態を
示す図FIG. 7 is a diagram showing a state of liquid crystal molecules on the first transparent substrate side of the present invention.
１ 第１の透明基板 ２ 第１の電極 ３ 第１の配向膜 ４ 第２の電極 ５ 第２の透明基板 ６ 第２の配向膜 ７ スペーサ ８ シール剤 ９ 液晶 １０ 液晶セル １１ 液晶分子 ２２，２３ 液晶表示パネル DESCRIPTION OF SYMBOLS 1 1st transparent substrate 2 1st electrode 3 1st alignment film 4 2nd electrode 5 2nd transparent substrate 6 2nd alignment film 7 Spacer 8 Sealant 9 Liquid crystal 10 Liquid crystal cell 11 Liquid crystal molecules 22, 23 LCD panel
フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｇ０２Ｆ 1/1343 Ｇ０２Ｆ 1/1343 (72)発明者 山口 久典 大阪府門真市大字門真1006番地 松下電器 産業株式会社内Continued on the front page (51) Int.Cl. 6 Identification symbol FI G02F 1/1343 G02F 1/1343 (72) Inventor Hisanori Yamaguchi 1006 Odakadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.
Claims (12)
１の配向膜とが順次形成された第１の透明基板と、 第２の電極と液晶分子を略垂直配向する第２の配向膜と
が順次形成された第２の透明基板とをそれぞれの配向膜
どうしが向かい合うように対向させ、 前記第１の透明基板と第２の透明基板との間にはハイブ
リッド配向させた液晶分子を介在させて液晶セルを形成
した液晶表示パネルにおいて、 液晶セル内ではハイブリッド配向した全ての液晶分子の
傾き方向を単一方向に揃えた液晶表示パネル。A first transparent substrate on which a first electrode and a first alignment film for aligning liquid crystal molecules substantially in parallel are sequentially formed; and a second transparent substrate for aligning liquid crystal molecules in a substantially vertical direction with a second electrode. Liquid crystal molecules having hybrid alignment are provided between the first transparent substrate and the second transparent substrate, with the second transparent substrate on which the alignment films are sequentially formed facing each other such that the respective alignment films face each other. A liquid crystal display panel in which a liquid crystal cell is formed with a liquid crystal cell interposed therebetween, wherein in the liquid crystal cell, the tilt directions of all the liquid crystal molecules in the hybrid orientation are aligned in a single direction.
が２°〜８°である請求項１記載の液晶表示パネル。2. The liquid crystal display panel according to claim 1, wherein the pretilt angle of the liquid crystal molecules on the first alignment film side is 2 ° to 8 °.
り、液晶セル外側の両面にはそれぞれ偏光板が配置され
た請求項１または請求項２記載の液晶表示パネル。3. The liquid crystal display panel according to claim 1, wherein the first and second electrodes are both transparent electrodes, and a polarizing plate is disposed on both surfaces outside the liquid crystal cell.
枚の位相差板が配置された請求項３記載の液晶表示パネ
ル。4. There is at least one gap between the liquid crystal cell and the polarizing plate.
4. The liquid crystal display panel according to claim 3, wherein a plurality of retardation plates are arranged.
第２の透明基板の外側には反射板を配置して、 前記液晶セルと偏光板との間には少なくとも１枚の位相
差板を配置した請求項１又は請求項２記載の液晶表示パ
ネル。5. A liquid crystal cell, wherein both the first and second electrodes are transparent electrodes, and a polarizing plate is arranged outside the first transparent substrate of the liquid crystal cell.
3. The liquid crystal display panel according to claim 1, wherein a reflection plate is disposed outside the second transparent substrate, and at least one retardation plate is disposed between the liquid crystal cell and the polarizing plate.
反射電極として液晶セルの第１の透明基板の外側には少
なくとも１枚の位相差板を介在させて偏光板を配置した
請求項１又は請求項２記載の液晶表示パネル。6. A polarizing plate is disposed outside a first transparent substrate of a liquid crystal cell with at least one retardation plate interposed therebetween, wherein the first electrode is a transparent electrode and the second electrode is a reflective electrode. The liquid crystal display panel according to claim 1.
１の配向膜とが順次形成された第１の透明基板と、 第２の電極と液晶分子を略垂直配向する第２の配向膜と
が順次形成された第２の透明基板とをそれぞれの配向膜
どうしが向かい合うように対向させ、 前記第１の透明基板と第２の透明基板との間にはハイブ
リッド配向させた液晶分子を介在させて液晶セルを形成
した液晶表示パネルを製造するに際し、 液晶セル内ではハイブリッド配向した液晶分子の傾き方
向を単一方向に揃うように配向処理を施す液晶表示パネ
ルの製造方法。7. A first transparent substrate on which a first electrode and a first alignment film for substantially aligning liquid crystal molecules are sequentially formed, and a second transparent substrate for substantially vertically aligning the second electrode and liquid crystal molecules. Liquid crystal molecules having hybrid alignment are provided between the first transparent substrate and the second transparent substrate, with the second transparent substrate on which the alignment films are sequentially formed facing each other such that the respective alignment films face each other. A method for producing a liquid crystal display panel in which a liquid crystal cell is formed with a liquid crystal cell interposed therebetween, and in which the liquid crystal molecules are subjected to an alignment treatment so that the tilt directions of the hybrid aligned liquid crystal molecules are aligned in a single direction in the liquid crystal cell.
１の配向膜とが順次形成された第１の透明基板と、 第２の電極と液晶分子を略垂直配向する第２の配向膜と
が順次形成された第２の透明基板とをそれぞれの配向膜
どうしが向かい合うように対向させ、 前記第１の透明基板と第２の透明基板との間にはハイブ
リッド配向させた液晶分子を介在させて液晶セルを形成
した液晶表示パネルを製造するに際し、 第１の配向膜側の液晶分子の長軸の基板面への射影方向
と逆方向に前記液晶を注入する液晶表示パネルの製造方
法。8. A first transparent substrate on which a first electrode and a first alignment film for aligning liquid crystal molecules substantially in parallel are sequentially formed, and a second transparent substrate for aligning liquid crystal molecules substantially vertically with a second electrode. Liquid crystal molecules having hybrid alignment are provided between the first transparent substrate and the second transparent substrate, with the second transparent substrate on which the alignment films are sequentially formed facing each other such that the respective alignment films face each other. Manufacturing a liquid crystal display panel in which a liquid crystal cell is formed by interposing a liquid crystal cell in which the liquid crystal is injected in a direction opposite to a direction in which a long axis of liquid crystal molecules on the first alignment film side is projected onto a substrate surface. Method.
方向が同一方向となるように第１，第２の配向膜に配向
処理を施す請求項８記載の液晶表示パネルの製造方法。9. The method for manufacturing a liquid crystal display panel according to claim 8, wherein the first and second alignment films are subjected to an alignment treatment such that all liquid crystal molecules have the same inclination direction in the liquid crystal cell.
向処理を施し、前記ラビング方向とは反平行方向に液晶
を注入する請求項８又は請求項９記載の液晶表示パネル
の製造方法。10. The method for manufacturing a liquid crystal display panel according to claim 8, wherein the first alignment film is subjected to an alignment treatment by a rubbing treatment, and a liquid crystal is injected in a direction antiparallel to the rubbing direction.
理を施すに際し、それぞれのラビング方向を反平行方向
にする請求項７、請求項９、請求項１０のいずれか１項
記載の液晶表示パネルの製造方法。11. The rubbing direction of each of the first alignment film and the second alignment film in the anti-parallel direction when the alignment process is performed on the first alignment film and the second alignment film. The manufacturing method of the liquid crystal display panel described in.
角が２°〜８°である請求項７〜請求項１１のいずれか
１項記載の液晶表示パネルの製造方法。12. The method for manufacturing a liquid crystal display panel according to claim 7, wherein a pretilt angle of the liquid crystal molecules on the first alignment film side is 2 ° to 8 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9161734A JPH1114990A (en) | 1997-06-19 | 1997-06-19 | Liquid crystal panel and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9161734A JPH1114990A (en) | 1997-06-19 | 1997-06-19 | Liquid crystal panel and its manufacture |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001109366A Division JP2001305546A (en) | 2001-04-09 | 2001-04-09 | Liquid crystal display panel and method for manufacturing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1114990A true JPH1114990A (en) | 1999-01-22 |
Family
ID=15740879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9161734A Pending JPH1114990A (en) | 1997-06-19 | 1997-06-19 | Liquid crystal panel and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1114990A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7196765B2 (en) | 2003-11-21 | 2007-03-27 | Seiko Epson Corporation | Liquid crystal device and electronic apparatus, and method for fabricating liquid crystal device |
| JP2009175766A (en) * | 2002-08-01 | 2009-08-06 | Hydis Technology Co Ltd | Liquid crystal display |
| CN104849933A (en) * | 2013-01-30 | 2015-08-19 | 吴新贤 | High-contract liquid crystal display |
-
1997
- 1997-06-19 JP JP9161734A patent/JPH1114990A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009175766A (en) * | 2002-08-01 | 2009-08-06 | Hydis Technology Co Ltd | Liquid crystal display |
| US7196765B2 (en) | 2003-11-21 | 2007-03-27 | Seiko Epson Corporation | Liquid crystal device and electronic apparatus, and method for fabricating liquid crystal device |
| CN104849933A (en) * | 2013-01-30 | 2015-08-19 | 吴新贤 | High-contract liquid crystal display |
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