JPH05127179A - Production of liquid crystal display element - Google Patents

Production of liquid crystal display element

Info

Publication number
JPH05127179A
JPH05127179A JP31550991A JP31550991A JPH05127179A JP H05127179 A JPH05127179 A JP H05127179A JP 31550991 A JP31550991 A JP 31550991A JP 31550991 A JP31550991 A JP 31550991A JP H05127179 A JPH05127179 A JP H05127179A
Authority
JP
Japan
Prior art keywords
liquid crystal
substrate
transparent electrode
spraying
spacer
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
JP31550991A
Other languages
Japanese (ja)
Inventor
Hiroshi Fujimura
浩 藤村
Original Assignee
Ricoh Co Ltd
株式会社リコー
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 Ricoh Co Ltd, 株式会社リコー filed Critical Ricoh Co Ltd
Priority to JP31550991A priority Critical patent/JPH05127179A/en
Publication of JPH05127179A publication Critical patent/JPH05127179A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To easily produce the liquid crystal display element having a uniform gap by printing the circumference of a substrate having transparent electrodes to a frame shape with a sealing material, dropping a liquid crystal onto the surface on a transparent electrode side and spraying spacer materials.
CONSTITUTION: An oriented film is formed on one sheet of a substrate provided with the transparent electrodes and is subjected to a rubbing treatment. The sealing material 2 is printed by using a UV curing type adhesive on the other substrate 1. A liquid crystal material 4 is dropped to the inside surface of this seal. The spacer materials 7 consisting of a spherical resin are sprayed by using a spacer spraying device 5 onto the substrate 1 dropped with the liquid crystal. The spacer materials 7 can be sprayed by measuring the prescribed amt. thereof and blowing the spacer materials out of a spraying nozzle 6 by compressed air, etc. After the spacer materials 7 are sprayed, the substrate to be disposed opposite is placed thereon from above and a uniform pressure is applied on the substrate; thereafter, the sealing material 2 is irradiated with UV rays, by which the sealing material can be cured. The movement and flocculation of the spacer materials 7 in the liquid crystal are prevented and the uniform gap is formed by spraying the spacer materials 7 after dropping of the liquid crystal in such a manner.
COPYRIGHT: (C)1993,JPO&Japio

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は液晶表示素子の製造方法に関するものである。 The present invention relates to a method of manufacturing a liquid crystal display device.

【0002】 [0002]

【従来の技術】一方の基板にシール材を印刷し、液晶を滴下した後、他の一方の基板を貼り合わせて、液晶素子を製造する方法において、従来は、シール材印刷後、スペーサ材を散布し、さらに液晶を滴下していた。 The sealing material is printed to the Prior Art One of the substrate, after dropping a liquid crystal, by bonding the other one of the substrates, a method for producing a liquid crystal element, conventionally, after the sealing material printing, the spacer member sprayed, it was further dropping the liquid crystal.

【0003】また、この他にも、例えば特開昭62−2 [0003] Further, in addition to this, for example, JP-62-2
47335号公報に示されているように、スペーサ材を予め液晶材料に分散させておいたものを基板上に滴下するという方法が考えられたいた。 As shown in 47335 discloses a method that what had been a spacer material is dispersed in advance in the liquid crystal material is dropped onto the substrate it is to be considered.

【0004】 [0004]

【発明が解決しようとする課題】しかし前記に示した前者の方法では、液晶が基板面に展開する過程で、スペーサ材を移動させ、さらには凝集させてしまうため、均一にスペーサ材が存在しないために、セルギャップにムラ、点欠陥(スペーサ材のかたまり)等の外観不良が生じてしまうという問題があった。 In the [0008] However the former method described above, in the process of the liquid crystal is deployed on the substrate surface, moving the spacer material, since thereby further are aggregated, there is no uniform spacer material for, there is a problem that the cell gap unevenness, the appearance defects such as point defects (lumps of spacer material) occurs.

【0005】また、前記に示した後者の方法でも液晶中でスペーサ材を均一に分散することはできるが、基板上に滴下すると、液晶界面にスペーサ材が凝集してくる傾向は抑えることができず、図4に示す様に特に液晶展開界面付近にスペーサ材が集まってしまう現象が生じ、結果として外観不良等の不具合が生じるという問題があった。 Further, although it is possible to uniformly disperse the spacer material in the liquid crystal in the latter method shown in above, when dropped on a substrate, tends to spacer material to the liquid crystal interface to aggregate can be suppressed not a phenomenon that the spacer member will gather in the vicinity of the interface particularly liquid development as shown in FIG. 4 occurs, there is a problem that malfunction occurs, such as a poor appearance as a result.

【0006】 [0006]

【課題を解決するための手段】本発明の液晶表示素子の製造方法は、配向処理が施された透明電極を有する基板を形成する工程と、前記基板の周囲をシール材で枠状に印刷する工程と、前記基板の透明電極のある面上に液晶を滴下する工程と、前記液晶上に均一で所定のギャップを有するスペーサ材を散布する工程とを順次行うことを特徴とするものである。 Method of manufacturing a liquid crystal display device of the present invention SUMMARY OF] includes the steps of forming a substrate having a transparent electrode which alignment treatment has been applied, to print the periphery of the substrate in a frame shape with a sealing material a step and is characterized a step of dropping the liquid crystal on a surface of the transparent electrode of the substrate, that sequentially performs a step of spraying a spacer material having a predetermined gap in uniform on the liquid crystal.

【0007】また、他の製造方法は、配向処理を施した透明電極を形成し周囲にシール材を印刷した後に前記透明電極側の面上に液晶を滴下した基板と、配向処理を施した透明電極を形成し、該透明電極側の面上に均一で所定のギャップを有するスペーサ材を散布した基板とを形成し、前記液晶を滴下した基板とスペーサ材を散布した基板とを各々の基板の透明電極が相互に対向する位置に貼り合わせることを特徴とするものである。 Further, another manufacturing method, a substrate was added dropwise to the liquid crystal on the surface of the transparent electrode side after printing the seal material around a transparent electrode subjected to orientation treatment, transparent subjected to alignment treatment electrode is formed, the transparent to the transparent electrode side of the surface to form a substrate having sprayed the spacer material having a predetermined gap in uniform, of the substrate respectively and a substrate obtained by spraying the substrate and the spacer material was dropped liquid crystal transparent electrode is characterized in that bonding at a position facing each other.

【0008】 [0008]

【作用】本発明の製造方法は、配向処理が施された透明電極を有する基板を形成する工程と、前記基板の周囲をシール材で枠状に印刷する工程と、前記基板の透明電極のある面上に液晶を滴下する工程と、前記液晶上に均一で所定のギャップを有するスペーサ材を散布する工程とを順次行うので液晶中に散布されたギャップ材が移動または凝集することがない。 Production method of working the present invention includes the steps of forming a substrate having a transparent electrode which alignment process is performed, the step of printing in a frame shape around the substrate with the sealing material, a transparent electrode of the substrate a step of dropping the liquid crystal onto a surface, the gap material is sprayed in the liquid crystal so sequentially performing the step of spraying a spacer material having a predetermined gap in uniform on the liquid crystal is not able to move or aggregation.

【0009】また、本発明の他の製造方法は、配向処理を施した透明電極を形成し周囲にシール材を印刷した後に前記透明電極側の面上に液晶を滴下した基板と、配向処理を施した透明電極を形成し、該透明電極側の面上に均一で所定のギャップを有するスペーサ材を散布した基板とを形成し、前記液晶を滴下した基板とスペーサ材を散布した基板とを各々の基板の透明電極が相互に対向する位置に貼り合わせるので、前記と同様の作用を有する。 Further, another manufacturing method of the present invention includes a substrate in which liquid crystal is dropped onto the surface of the transparent electrode side after printing the seal material around a transparent electrode subjected to orientation treatment, an orientation process forming a transparent electrode subjected, respectively and a substrate to form a substrate having sprayed the spacer material having a predetermined gap in uniform on the surface of the transparent electrode side, which was sprayed with the substrate and the spacer material dropping the liquid crystal since the transparent electrode substrate is bonded to a position facing each other, it has the same effect as above.

【0010】 [0010]

【実施例】本発明の実施例を図面を参照して以下に説明する。 Examples of EXAMPLES The present invention will be described with reference to the drawings hereinafter. 実施例1 透明電極を有する1枚の基板上に配向膜(ポリイミド系配向膜)を形成し、ラビング処理を行う。 Example 1 an alignment film (polyimide alignment film) is formed on a single substrate having a transparent electrode, a rubbing process. 次に図1に示すように、他方の基板1上に紫外線硬化型接着剤を用いてシール材2を印刷する。 Next, as shown in FIG. 1, for printing the sealing material 2 by using an ultraviolet curing adhesive on the other substrate 1. この基板1のシール内面に液晶材料4(ネマティック液晶)を図2に示すようにスポット3を用いて滴下した。 The liquid crystal material 4 (nematic liquid crystal) to seal the inner surface of the substrate 1 was dropped using a spot 3 as shown in FIG. 滴下量は、あらかじめ液晶封入体積から求めておく。 Dropping amount is previously obtained in advance from the liquid crystal filling volume.

【0011】上記の液晶を滴下した基板1に図3に示すスペーサ散布装置5を用いて粒径約8μmの球体状樹脂からなるスペーサ材7を散布した。 [0011] were dispersed spacer material 7 made of spherical resin having a particle diameter of about 8μm using a spacer spraying apparatus 5 shown in FIG. 3 on the substrate 1 in which liquid crystal is dropped as described above. スペーサ材は所定量を計量し、散布ノズル6から圧縮エアーもしくは窒素ガス等により吹き出し散布することができる。 The spacer material may be weighed prescribed amount, spraying balloon by compressed air or nitrogen gas or the like from the spray nozzle 6.

【0012】スペーサ材7を散布後、対向する基板を上から載せ、均一な圧力を加えた後、紫外線を照射することでシール材2を硬化させた。 [0012] After spraying spacer material 7, placing the opposing substrate from above, after adding a uniform pressure, and the sealing material 2 is cured by irradiation of ultraviolet light. その後、開口部1aを接着剤で封止した。 Thereafter, sealing the opening 1a with adhesive.

【0013】以上示したように、液晶滴下後にスペーサ材を散布したので、従来例に見られるような、液晶の移動及び界面によるスペーサ材のかたより、凝集が発生せず、均一なセルギャップ、良好な外観を得ることができた。 [0013] As described above, since the sprayed spacer material after the liquid crystal dropping, as seen in the conventional example, deviation of the spacer member according to the movement and the interface of the liquid crystal, no aggregation occurred, uniform cell gap, good it was possible to obtain an appearance. また、液晶滴下後のスペーサ材の散布であるため、 Further, since the spraying of spacer material after the liquid crystal dropping,
液晶を滴下せずに基板に散布する時に発生する帯電(ラビング処理時に顕著に発生)によるスペーサ材のかたよりも防止することができた(液晶滴下による除電効果)。 Was able to be prevented from person of spacer material according to (remarkably generated during the rubbing process) charged generated when spraying the substrate without dropping the liquid crystal (neutralization effect by the liquid crystal dropping).

【0014】実施例1と同様にして2枚の基板を作製し、一方の基板に、シール材を印刷後液晶を滴下し、他方の基板に図3に示すスペーサ散布装置5によりスペーサを散布し、この2枚の基板を一定圧力で貼り合わせ、 [0014] to prepare two substrates in the same manner as in Example 1, on one substrate, the sealant was dropped after printing liquid, the spacer was sprayed by a spacer spraying apparatus 5 shown in FIG. 3 on the other substrate , bonded to the two substrates at a constant pressure,
紫外線を照射したシール材を硬化させた。 UV was cured by irradiating the sealing material. その後開口部を前記実施例1と同様の接着剤で封止した。 Then seal the opening in the same adhesive as in Example 1.

【0015】このような方法で製造することで、液晶展開時のスペーサ材の移動もなく、均一なセルギャップ、 [0015] By producing in this way, no movement of the spacer member at the time of the liquid crystal development, uniform cell gap,
良好な外観を得ることができ、さらにシール印刷から液晶滴下までの工程と、スペーサ散布の工程を並行して行うことができるため、生産性が向上した。 It is possible to obtain a good appearance, further comprising the steps up to the liquid crystal dropping from the seal printing, since the step of spacer spraying may be carried out in parallel, and increased productivity.

【0016】 [0016]

【発明の効果】以上説明したように本発明の液晶表示素子の製造方法は、配向処理が施された透明電極を有する基板を形成する工程と、前記基板の周囲をシール材で枠状に印刷する工程と、前記基板の透明電極のある面上に液晶を滴下する工程と、前記液晶上に均一で所定のギャップを有するスペーサ材を散布する工程とを順次行うので液晶中に散布されたギャップ材が移動又は凝集することがなくなり、均一なギャップを具備し表示品位の優れた液晶表示素子を容易に製造することができる。 Method of manufacturing a liquid crystal display device of the present invention as described above, according to the present invention includes the steps of forming a substrate having a transparent electrode which alignment treatment has been applied, printed around the substrate in a frame shape with a sealing material step and a step of dropping the liquid crystal on a surface of the transparent electrode of the substrate, a gap which is sprayed in the liquid crystal so sequentially performing the step of spraying a spacer material having a predetermined gap in uniform on the liquid crystal that prevents the wood moves or agglomeration, excellent liquid crystal display device comprising a uniform gap display quality can be easily manufactured. また、 Also,
本発明の他の製造方法は、配向処理を施した透明電極を形成し、周囲にシール材を印刷した後に前記透明電極側の面上に液晶を滴下した基板と、配向処理を施した透明電極を形成し該透明電極側の面上に均一で所定のギャップを有するスペーサ材を散布した基板とを形成し、前記液晶を滴下した基板とスペーサ材を散布した基板とを各々基板の透明電極が相互に対向する位置に貼り合わせるので、前記と同様の作用・効果を得ることができる。 Another production method of the present invention forms a transparent electrode subjected to orientation treatment, the transparent electrode was subjected to the substrate with liquid crystal is dropped onto the surface of the transparent electrode side after printing the seal material around the alignment treatment forming a forming a substrate sprayed with the spacer material having a predetermined gap in uniform on the surface of the transparent electrode side, a transparent electrode of each substrate and the substrate was sprayed substrate and the spacer material was dropped liquid crystal is since bonded at a position opposed to each other, it is possible to obtain the same actions and effects as above.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の液晶表示素子の製造方法に関し、液晶表示素子におけるシール材を印刷した基板の一例を示した平面図である。 It relates to a method for fabricating a liquid crystal display device of the present invention; FIG is a plan view showing an example of a substrate printed with a sealing material in the liquid crystal display device.

【図2】本発明の液晶表示素子の製造方法に関し、シール材を印刷した基板上に液晶を滴下する工程を示した説明図である。 It relates to a method for fabricating a liquid crystal display device of the present invention; FIG is an explanatory view showing a step of dropping the liquid crystal on a substrate by printing a sealing material.

【図3】本発明の液晶表示素子の製造方法において、スペーサ散布装置による基板上へのスペーサ材散布工程を示した説明図である。 The manufacturing method of the liquid crystal display device of the present invention; FIG is an explanatory view showing the spacer material spraying process onto the substrate by the spacer spraying apparatus.

【図4】従来の液晶表示素子の製造方法において、基板上への液晶滴下後におけるスペーサ材の移動現象を示した概略説明図である。 [4] The manufacturing method of a conventional liquid crystal display device, which is a schematic illustration showing a movement phenomenon of the spacer member after the liquid crystal dropping onto the substrate.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 基板 1a 開口部 2 シール材 3 スポイト 4 液晶 5 スペーサ散布装置 6 散布ノズル 7 スペーサ材 1 substrate 1a opening 2 the sealing member 3 eyedropper 4 LCD 5 spacer spraying apparatus 6 spray nozzle 7 spacer material

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 配向処理が施された透明電極を有する基板を形成する工程と、前記基板の周囲をシール材で枠状に印刷する工程と、前記基板の透明電極のある面上に液晶を滴下する工程と、前記液晶上に均一で所定のギャップを有するスペーサ材を散布する工程とを順次行うことを特徴とする液晶表示素子の製造方法。 Forming a substrate having a 1. A transparent electrode an alignment process is performed, the step of printing the periphery of the substrate in a frame shape with a sealing material, a liquid crystal on a surface of the transparent electrode of the substrate process and method of manufacturing a liquid crystal display element characterized by sequentially performing the step of spraying a spacer material having a predetermined gap in uniform on the liquid crystal to be dropped.
  2. 【請求項2】 配向処理を施した透明電極を形成し、周囲にシール材を印刷した後に前記透明電極側の面上に液晶を滴下した基板と、配向処理を施した透明電極を形成し該透明電極側の面上に均一で所定のギャップを有するスペーサ材を散布した基板とを形成し、前記液晶を滴下した基板とスペーサ材を散布した基板とを各々の基板の透明電極が相互に対向する位置に貼り合わせることを特徴とする液晶表示素子の製造方法。 Wherein a transparent electrode subjected to orientation treatment to form a transparent electrode which has been subjected and the substrate was added dropwise a liquid crystal, an alignment process on the surface of the transparent electrode side after printing the seal material around the forming a substrate sprayed with the spacer material having a predetermined gap in uniform on the surface of the transparent electrode side, opposing the transparent electrode of the substrate respectively and a substrate obtained by spraying the substrate and the spacer material was dropped liquid crystal is mutually method of manufacturing a liquid crystal display device characterized by bonding a position.
JP31550991A 1991-11-01 1991-11-01 Production of liquid crystal display element Pending JPH05127179A (en)

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