JPS6327815A - Manufacture of liquid crystal element - Google Patents

Manufacture of liquid crystal element

Info

Publication number
JPS6327815A
JPS6327815A JP61171987A JP17198786A JPS6327815A JP S6327815 A JPS6327815 A JP S6327815A JP 61171987 A JP61171987 A JP 61171987A JP 17198786 A JP17198786 A JP 17198786A JP S6327815 A JPS6327815 A JP S6327815A
Authority
JP
Japan
Prior art keywords
liquid crystal
interference fringes
crystal molecule
photosensitive resin
resin film
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
Application number
JP61171987A
Other languages
Japanese (ja)
Inventor
Toshiyasu Eguchi
稔康 江口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP61171987A priority Critical patent/JPS6327815A/en
Publication of JPS6327815A publication Critical patent/JPS6327815A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133711Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • G02F1/133788Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133765Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers without a surface treatment

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

PURPOSE:To control a liquid crystal molecule pretilt angle by exposing a photosensitive resin film corresponding to the intensity of light by interference fringes, and adjusting the intervals of the interference fringes and controlling the orientation of a liquid crystal molecule oriented film. CONSTITUTION:Laser light is split by a beam splitter 5 in two directions and a substrate 1 is irradiated with the split laser light beams by mirrors 6 and 7 at specific angles theta1 and theta2 of incidence. Spatial filters 12 and 13 consisting of lenses 8 and 9 and pinholes 10 and 11 convert the laser light beams into divergent spherical waves. The interference fringes are formed on the substrate with the mutually coherent spherical waves and a photosensitive resin film 2 which is exposed corresponding to the intensity of light by the interference fringes is developed to form grooves on the substrate 1 in a since wave shape corresponding to the intensity of the interference fringes, thus forming the liquid crystal molecule oriented film. The interference fringes are constituted properly to form grooves in various shapes in the photosensitive resin film, and consequently the liquid crystal molecule pretilt angle can be controlled.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は液晶表示素子の製造方法に係り、特に液晶分子
配向膜のプレティルト角の制御を行ないnる液晶表示素
子の製造方法に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing a liquid crystal display element, and more particularly to a method for manufacturing a liquid crystal display element in which the pretilt angle of a liquid crystal molecule alignment film is controlled.

従来の技術 一般に液晶表示素子には、液晶と直接接触し、その界面
における相互信用によって液晶分子を配向させ、また寿
命向上に有効な電極保護膜となる液晶分子配向膜が設け
られている。この液晶分子配向膜は、例えば液晶表示素
子の透明電極基板表面に電気絶縁性の耐熱性合成樹脂で
あるポリイミド系樹脂の中間体を溶媒中に溶かしてスピ
ンナー或は転写印刷などによって塗布し、その後溶媒を
揮発、乾燥してから加熱重合させてポリイミド系樹脂被
膜を形成し、次に得られた被膜を一定方向にラビング処
理を施すことにより形成される。
2. Description of the Related Art In general, liquid crystal display elements are provided with a liquid crystal molecule alignment film that comes into direct contact with the liquid crystal, aligns the liquid crystal molecules through mutual trust at the interface, and serves as an electrode protective film that is effective in improving lifespan. This liquid crystal molecule alignment film is produced by dissolving an intermediate of polyimide resin, which is an electrically insulating and heat-resistant synthetic resin, in a solvent and applying it to the surface of a transparent electrode substrate of a liquid crystal display element using a spinner or transfer printing, for example. The polyimide resin film is formed by volatilizing the solvent and drying it, then polymerizing it by heating, and then rubbing the resulting film in a certain direction.

発明が解決しようとする問題点 ところで、液晶分子を配向制御する方法として、一般に
ラビングする方法が採用されているが、これによるとラ
ビングするベクトル方向に液晶分子がプレティルトをも
ち、液晶パネルに電圧が印加されたとき、液晶分子はプ
レティルトしている方向に立ち上がってくるために、こ
の方向から見た場合に旋光性が解消されやすく、これが
、視角依存性をもたらす最大の原因となっている。
Problems to be Solved by the Invention By the way, a rubbing method is generally adopted as a method for controlling the alignment of liquid crystal molecules, but according to this method, the liquid crystal molecules have a pretilt in the direction of the rubbing vector, and voltage is applied to the liquid crystal panel. When this voltage is applied, the liquid crystal molecules rise in the pretilted direction, so optical rotation tends to be canceled when viewed from this direction, and this is the biggest cause of viewing angle dependence.

このように、液晶表示素子には、その表示が最も良く見
える主視角方向があるが、この方向はラビングする方向
により決定することができる。
As described above, a liquid crystal display element has a principal viewing angle direction in which its display is best seen, and this direction can be determined by the rubbing direction.

しかるに、上記のラビング法を用いて液晶分子配向膜に
配向処理する方法では、プレティルト角を任意に可変i
ll f211することが難しく、液晶表示のコントラ
スト、応答速度、視角依存性等を適宜制御し、所望の特
性を得ることが困Mぐあるという問題点があった。また
ラビング処理■稈は樹脂被膜を綿布等でこする作業であ
るため、液晶分子配向膜上に埃塵が付着しやすく、この
埃塵の影響により液晶表示素子の品質及び歩留りの劣化
が生じるという問題点があった。
However, in the method of aligning a liquid crystal molecule alignment film using the above-mentioned rubbing method, the pretilt angle can be arbitrarily changed i.
There was a problem in that it was difficult to control the contrast, response speed, viewing angle dependence, etc. of the liquid crystal display appropriately and obtain desired characteristics. In addition, since the rubbing process involves rubbing the resin coating with a cotton cloth, etc., dust tends to adhere to the liquid crystal molecular alignment film, and the quality and yield of liquid crystal display elements deteriorate due to the influence of this dust. There was a problem.

そこで本発明では、光学的手段を用いて配向処理を行な
い液晶分子配向膜を形成することにより、上記問題点を
解決した液晶表示素子の製造方法を提供することを目的
とする。
Therefore, an object of the present invention is to provide a method for manufacturing a liquid crystal display element that solves the above-mentioned problems by performing alignment treatment using optical means to form a liquid crystal molecule alignment film.

問題点を解決するため手段及び作用 上記問題点を解決するために本発明では、透明電極が形
成された基板上に感光性樹脂膜をq躾し、この感光性樹
脂膜を干渉縞により光の強弱に対応させて感光すること
により配向処理して液晶分子配向膜を形成し、次に液晶
分子配向膜が形成された一対の基板間に液晶材料を封入
することにより、液晶表示素子を製造した。
Means and Effects for Solving the Problems In order to solve the above problems, the present invention provides a photosensitive resin film that is coated on a substrate on which a transparent electrode is formed, and that the photosensitive resin film is exposed to light using interference fringes. A liquid crystal display element was manufactured by forming a liquid crystal molecule alignment film through alignment treatment by exposing it to light in accordance with the strength and weakness, and then sealing a liquid crystal material between a pair of substrates on which the liquid crystal molecule alignment film was formed. .

上記製造方法によれば干渉縞の間隔等を適宜調整するこ
とにより液晶分子配向膜の配向制御をすることができ、
液晶分子プレティルト角の制御を行なうことが可能とな
る。
According to the above manufacturing method, the alignment of the liquid crystal molecule alignment film can be controlled by appropriately adjusting the interval of interference fringes, etc.
It becomes possible to control the pretilt angle of liquid crystal molecules.

実施例 次に本発明になる液晶表示素子の製造方法の一実施例に
ついて図面と共に説明する。
EXAMPLE Next, an example of the method for manufacturing a liquid crystal display element according to the present invention will be described with reference to the drawings.

第1図は本発明方法の要部となる、干渉縞を用いて基板
1に配向処理を行なっている状態を示している。基板1
は透明ガラス材上に例えば金属酸化物(酸化すず、M化
インジウム等)の1lllQで構成された透明電極が形
成されており、その上部にはポリイミド系感光性耐熱コ
ーティング剤2(以下、感光性樹脂膜という)が、スピ
ンナー法によって塗布されている。感光性樹脂膜2は光
が照射された部分が重合、架橋2分解などによって溶剤
に溶けなくなるネガ型であり、よって光学系3が作り出
す干渉縞に対応して感光性樹脂膜は感光される。
FIG. 1 shows a state in which a substrate 1 is subjected to alignment processing using interference fringes, which is the essential part of the method of the present invention. Board 1
For example, a transparent electrode made of 1llllQ of metal oxide (tin oxide, indium Mide, etc.) is formed on a transparent glass material, and on top of the transparent electrode is formed a polyimide-based photosensitive heat-resistant coating agent 2 (hereinafter referred to as photosensitive coating material 2). A resin film) is applied by a spinner method. The photosensitive resin film 2 is a negative type in which the portion irradiated with light becomes insoluble in a solvent due to polymerization, cross-linking, bi-decomposition, etc. Therefore, the photosensitive resin film is exposed to light corresponding to the interference fringes produced by the optical system 3.

ここで干渉縞を構成し、これを基板1J:の感光性樹脂
膜2に照射する光学系3について説明する。
Here, the optical system 3 that forms interference fringes and irradiates the photosensitive resin film 2 of the substrate 1J will be described.

光学系3はレーザ4、ビームスプリッタ5、ミラー6.
7、レンズ8,9、ピンホール10.11等より構成さ
れている。レーザ4より発射されたレーザ光はビームス
プリッタ5で2方向に分けられ、夫々のレーザ光はミラ
ー6.7により基板1に対して所定の入射角θl、θ2
で照射される。
The optical system 3 includes a laser 4, a beam splitter 5, a mirror 6.
7, lenses 8 and 9, pinholes 10 and 11, etc. The laser beam emitted from the laser 4 is split into two directions by a beam splitter 5, and each laser beam is set at a predetermined incident angle θl, θ2 with respect to the substrate 1 by a mirror 6.7.
irradiated with.

またレンズ8,9及びピンホール10.11よりなる空
間フィルタ12.13は各レーザ光を発散球面波に変換
する。この豆いにコヒーレントな球面波により基板1上
には干渉縞が形成され、この干渉縞による光の強弱に対
応して感光性樹脂膜2は感光される。この感光された感
光性樹脂膜2を現像処理することにより、基板1上には
干渉縞の強弱に応じた正弦波状の溝が形成され、よって
液晶分子配向膜が形成される。
Further, a spatial filter 12.13 consisting of lenses 8, 9 and a pinhole 10.11 converts each laser beam into a diverging spherical wave. Interference fringes are formed on the substrate 1 by this extremely coherent spherical wave, and the photosensitive resin film 2 is exposed to light corresponding to the strength of the light due to the interference fringes. By developing the exposed photosensitive resin film 2, sinusoidal grooves corresponding to the strength of the interference fringes are formed on the substrate 1, thereby forming a liquid crystal molecule alignment film.

上記光学系3において、ミラー6.7は角度調整可能と
されており、これに対応して空間フィルタ12.13も
変位するよう構成されている。即ち、分岐されたレーザ
光のり板1に対する入射角θ電、θ2を夫々任意に調整
することができる。
In the optical system 3, the angle of the mirror 6.7 is adjustable, and the spatial filter 12.13 is also configured to be displaced accordingly. That is, the incident angles θ and θ2 of the branched laser beams with respect to the glue plate 1 can be adjusted as desired.

これに加え、基板1も図示しない取付はホルダを変位さ
せることにより図中矢印A+ 、A2方向へ回動調整し
得るよう構成されている。光学系3により配向処理され
た感光性樹脂膜2は第2図(A>に示す如く、略正弦波
状の溝を形成するが、この溝の周期しはミラー6.7を
変位させ入射角θ1゜θ2を調整することにより制御す
ることができ、また溝の深さHはレーザ4の照射時間を
調整することにより制御することができる。また基板1
をA+ 、A2方向(第1図に示す)へ変位させること
により、第2図(B)に示す如く溝の形状をも正弦波形
状より変えることができる。このように感光性樹脂膜2
を光学系3により配向処理して液晶分子配向膜を形成す
ることにより液晶分子配向膜表面の満を任意の形状で形
成することが可能となり、これにより液晶分子プレティ
ルト角の制御を行なうことが可能となった。また光学系
3の干渉縞を利用して形成された液晶分子配向膜による
表示時における液晶の配向はラビング法を用いて形成さ
れた液晶分子配向膜と同程度であった。これに加え、配
向処理は光学系3を用いた光学的な加工であるため、ラ
ビング法と異なり液晶分子配向膜上に埃昨がつくような
ことはなく、品質及び歩留の向上を図ることができた。
In addition, the mounting of the board 1 (not shown) is configured such that it can be rotated in the directions of arrows A+ and A2 in the figure by displacing the holder. The photosensitive resin film 2 that has been oriented by the optical system 3 forms approximately sinusoidal grooves as shown in FIG. It can be controlled by adjusting the angle θ2, and the depth H of the groove can be controlled by adjusting the irradiation time of the laser 4.
By displacing the groove in the A+ and A2 directions (shown in FIG. 1), the shape of the groove can also be changed from a sinusoidal shape as shown in FIG. 2(B). In this way, the photosensitive resin film 2
By performing alignment processing using the optical system 3 to form a liquid crystal molecule alignment film, it becomes possible to form the surface of the liquid crystal molecule alignment film in an arbitrary shape, thereby making it possible to control the pretilt angle of the liquid crystal molecules. It became. Furthermore, the orientation of the liquid crystal during display by the liquid crystal molecule alignment film formed using the interference fringes of the optical system 3 was comparable to that of the liquid crystal molecule alignment film formed using the rubbing method. In addition, since the alignment process is an optical process using optical system 3, unlike the rubbing method, there is no dust buildup on the liquid crystal molecule alignment film, which improves quality and yield. was completed.

上述のようにして形成した2枚液晶分子配向躾14を具
備した透明電極ガラス基板1は第3図に示すように、平
行度正しくスベーリ15を介して約10μ1wiして対
向配設され、これら2枚の基板1の周辺部をシール部材
16によりシールし、空のセル容器を組み立て、液晶材
料17を注入・封止した構造のツイスト・ネマチック形
液晶表示素子18が形成される。尚、第3図中、19は
透明電極を、20は偏光板を夫々示している。
As shown in FIG. 3, the two transparent electrode glass substrates 1 provided with the liquid crystal molecule alignment plates 14 formed as described above are arranged facing each other with an accurate parallelism of about 10μ1 with a subarea 15 interposed therebetween. A twisted nematic liquid crystal display element 18 having a structure in which the periphery of the substrate 1 is sealed with a sealing member 16, an empty cell container is assembled, and a liquid crystal material 17 is injected and sealed is formed. In addition, in FIG. 3, 19 indicates a transparent electrode, and 20 indicates a polarizing plate.

発明の効果 上述の如く、本発明になる液晶表示素子の製造方法によ
れば、透明電極が形成された基板上に感光性樹脂膜を塗
膜し、この感光性樹脂膜を干渉縞による光の強弱に対応
して感光させることにより配向処理して液晶分子配向膜
を形成し、次に液晶分子配向膜が形成された一対の基板
間に液晶材料を封入して液晶表示素子を製造することに
より、形成される干渉縞を適宜構成することにより感光
性樹脂股上には種々の形状の溝を形成することが可能と
なり、これにより液晶分子プレティルト角の制御を行な
うことができるようになり、またラビング工程が不要と
なるため液晶分子配向膜に埃塵が付着することはなく、
液晶表示素子の信頼性及び歩留りを向上させることがで
きる等の特長を有する。
Effects of the Invention As described above, according to the method of manufacturing a liquid crystal display element according to the present invention, a photosensitive resin film is coated on a substrate on which a transparent electrode is formed, and the photosensitive resin film is coated with light due to interference fringes. A liquid crystal molecule alignment film is formed by alignment treatment by exposure to light depending on the intensity, and then a liquid crystal material is sealed between a pair of substrates on which the liquid crystal molecule alignment film is formed to manufacture a liquid crystal display element. By appropriately configuring the interference fringes that are formed, it is possible to form grooves of various shapes on the photosensitive resin. Since no process is required, there is no dust attached to the liquid crystal molecular alignment film.
It has features such as being able to improve the reliability and yield of liquid crystal display elements.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明になる液晶表示A子の製造方法の一実施
例を説明するための概略構成図、第2間(A)、(B)
は本発明方法により感光性樹脂股上に形成された溝の形
状を説明するための図、第3図は本発明方法により製造
された液晶表示素子を示す図である。 1・・・基板、2・・・感光性樹脂膜、3・・・光学系
、4・・・レーザ、5・・・ビームスプリッタ、6.7
・・・ミラー、12.13・・・空間フィルタ、14・
・・液晶分子配向膜、17・・・液晶材料、18・・・
液晶表示素f0特許出願人 日本ビクター株式会社 ;F、?、7’jm+7さ。 第1図 第3図 旭
FIG. 1 is a schematic configuration diagram for explaining an embodiment of the method for manufacturing a liquid crystal display A element according to the present invention, and the second space (A) and (B) are shown in FIG.
3 is a diagram for explaining the shape of the groove formed on the photosensitive resin crotch by the method of the present invention, and FIG. 3 is a diagram showing a liquid crystal display element manufactured by the method of the present invention. DESCRIPTION OF SYMBOLS 1... Substrate, 2... Photosensitive resin film, 3... Optical system, 4... Laser, 5... Beam splitter, 6.7
... Mirror, 12.13 ... Spatial filter, 14.
...Liquid crystal molecule alignment film, 17...Liquid crystal material, 18...
Liquid crystal display element f0 patent applicant Japan Victor Co., Ltd.; F,? ,7'jm+7. Figure 1 Figure 3 Asahi

Claims (1)

【特許請求の範囲】[Claims] 透明電極が形成された基板上に感光性樹脂膜を塗膜し、
該感光性樹脂膜を干渉縞による光の強弱に対応させて感
光することにより配向処理して液晶分子配向膜を形成し
、次に該液晶分子配向膜が形成された一対の該基板間に
液晶材料を封入することを特徴とする液晶表示素子の製
造方法。
A photosensitive resin film is coated on the substrate on which the transparent electrode is formed,
A liquid crystal molecule alignment film is formed by aligning the photosensitive resin film by exposing it to light corresponding to the intensity of light generated by interference fringes, and then a liquid crystal is placed between the pair of substrates on which the liquid crystal molecule alignment film is formed. A method for manufacturing a liquid crystal display element, characterized by encapsulating a material.
JP61171987A 1986-07-22 1986-07-22 Manufacture of liquid crystal element Pending JPS6327815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61171987A JPS6327815A (en) 1986-07-22 1986-07-22 Manufacture of liquid crystal element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61171987A JPS6327815A (en) 1986-07-22 1986-07-22 Manufacture of liquid crystal element

Publications (1)

Publication Number Publication Date
JPS6327815A true JPS6327815A (en) 1988-02-05

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Application Number Title Priority Date Filing Date
JP61171987A Pending JPS6327815A (en) 1986-07-22 1986-07-22 Manufacture of liquid crystal element

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Country Link
JP (1) JPS6327815A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525478A2 (en) * 1991-07-26 1993-02-03 F. Hoffmann-La Roche Ag Liquid crystal display cell
WO1995022075A1 (en) * 1994-02-09 1995-08-17 The Secretary Of State For Defence Liquid crystal device alignment
FR2744536A1 (en) * 1996-02-01 1997-08-08 Lg Electronics Inc ULTRAVIOLET IRRADIATION DEVICE FOR A PHOTOALIGNMENT PROCESS, AND IRRADIATION METHOD USING THE SAME
CN1041656C (en) * 1994-02-09 1999-01-13 英国国防部 Bistable nematic liquid crystal devices
KR100304914B1 (en) * 1994-04-19 2002-10-31 엘지.필립스 엘시디 주식회사 Alignment device and method for liquid crystal display device
WO2006104906A1 (en) * 2005-03-26 2006-10-05 Hewlett-Packard Development Company, L.P. Laser-writing alignment marks on alignment layer to align liquid crystals
KR100891290B1 (en) 2007-06-22 2009-04-06 주식회사 에이디피엔지니어링 Apparatus for forming an alignment layer of liquid crystal display device and method for forming an alignment layer using the same
KR100931605B1 (en) 2007-09-18 2009-12-14 주식회사 에이디피엔지니어링 Alignment film forming apparatus for liquid crystal display and alignment film forming method using same
CN104808395A (en) * 2015-05-21 2015-07-29 合肥鑫晟光电科技有限公司 Optical alignment film, manufacturing method thereof, display substrate and display device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525478A2 (en) * 1991-07-26 1993-02-03 F. Hoffmann-La Roche Ag Liquid crystal display cell
WO1995022075A1 (en) * 1994-02-09 1995-08-17 The Secretary Of State For Defence Liquid crystal device alignment
US5724113A (en) * 1994-02-09 1998-03-03 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal device alignment layer having an asymmetric profile grating on its surface
CN1041242C (en) * 1994-02-09 1998-12-16 英国国防部 Liquid cyrstal device alignment
CN1041656C (en) * 1994-02-09 1999-01-13 英国国防部 Bistable nematic liquid crystal devices
KR100304914B1 (en) * 1994-04-19 2002-10-31 엘지.필립스 엘시디 주식회사 Alignment device and method for liquid crystal display device
FR2744536A1 (en) * 1996-02-01 1997-08-08 Lg Electronics Inc ULTRAVIOLET IRRADIATION DEVICE FOR A PHOTOALIGNMENT PROCESS, AND IRRADIATION METHOD USING THE SAME
WO2006104906A1 (en) * 2005-03-26 2006-10-05 Hewlett-Packard Development Company, L.P. Laser-writing alignment marks on alignment layer to align liquid crystals
KR100891290B1 (en) 2007-06-22 2009-04-06 주식회사 에이디피엔지니어링 Apparatus for forming an alignment layer of liquid crystal display device and method for forming an alignment layer using the same
KR100931605B1 (en) 2007-09-18 2009-12-14 주식회사 에이디피엔지니어링 Alignment film forming apparatus for liquid crystal display and alignment film forming method using same
CN104808395A (en) * 2015-05-21 2015-07-29 合肥鑫晟光电科技有限公司 Optical alignment film, manufacturing method thereof, display substrate and display device
CN104808395B (en) * 2015-05-21 2018-01-02 合肥鑫晟光电科技有限公司 Light alignment film and preparation method thereof, display base plate and display device

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