JPH1195183A - Liquid crystal panel manufacturing method, liquid crystal panel and electronic equipment - Google Patents
Liquid crystal panel manufacturing method, liquid crystal panel and electronic equipmentInfo
- Publication number
- JPH1195183A JPH1195183A JP9255527A JP25552797A JPH1195183A JP H1195183 A JPH1195183 A JP H1195183A JP 9255527 A JP9255527 A JP 9255527A JP 25552797 A JP25552797 A JP 25552797A JP H1195183 A JPH1195183 A JP H1195183A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal panel
- manufacturing
- flexible substrate
- flexible
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 93
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 50
- 239000000758 substrate Substances 0.000 claims abstract description 95
- 238000005520 cutting process Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims description 41
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 21
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 239000012790 adhesive layer Substances 0.000 description 4
- 239000003566 sealing material Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Laser Beam Processing (AREA)
Abstract
(57)【要約】
【課題】基板に可撓性基板を用いる液晶パネルにおい
て、ハンドリング性に優れ、様々な形状の液晶パネルに
対しても対応が可能な液晶パネルの製造方法を提供す
る。
【解決手段】可撓性基板１を支持フィルム２に貼着させ
たままの状態で各工程を流動する。切断工程について
は、少なくとも可撓性基板１を所定の外形形状に分断で
きるように切断し、可撓性基板１を重合貼着した後、支
持フィルム２を剥離する。
(57) Abstract: Provided is a method of manufacturing a liquid crystal panel using a flexible substrate as a substrate, which is excellent in handleability and can be applied to liquid crystal panels of various shapes. Each step flows while a flexible substrate (1) is stuck to a support film (2). In the cutting step, at least the flexible substrate 1 is cut so as to be able to be cut into a predetermined outer shape, the flexible substrate 1 is superposed and adhered, and then the support film 2 is peeled off.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、プラスチックフィ
ルム等の可撓性基板を用いた液晶パネルの製造方法及び
前記製造方法で製造された液晶パネルに関する。また、
前記液晶パネルを搭載したことを特徴とする電子機器に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a liquid crystal panel using a flexible substrate such as a plastic film, and a liquid crystal panel manufactured by the above method. Also,
The present invention relates to an electronic device equipped with the liquid crystal panel.
【０００２】[0002]
【従来の技術】可撓性基板を用いた液晶パネルの製造方
法について図６，７を用いて説明する。図６は液晶パネ
ルの断面構造を示す図であり、図７は開口部の一例を示
す図である。2. Description of the Related Art A method of manufacturing a liquid crystal panel using a flexible substrate will be described with reference to FIGS. FIG. 6 is a diagram showing a cross-sectional structure of a liquid crystal panel, and FIG. 7 is a diagram showing an example of an opening.
【０００３】可撓性基板１上にはインジウムスズ酸化物
（ＩＴＯ）等からなる透明電極４が形成されており、そ
の表面には配向膜５が形成されラビング等により液晶を
整列させるための配向処理が施されている。可撓性基板
１を透明電極４が相対向するように、間隙保持部材６、
シール材７を介して重合貼着させて空セルを構成してい
る。空セルには真空注入法などにより注入口から液晶８
が封入され、紫外線硬化樹脂などの接着剤により封口さ
れ液晶パネルが構成されている。A transparent electrode 4 made of indium tin oxide (ITO) or the like is formed on a flexible substrate 1, and an alignment film 5 is formed on the surface of the transparent electrode 4 to align liquid crystals by rubbing or the like. Processing has been applied. A gap holding member 6 is attached to the flexible substrate 1 so that the transparent electrodes 4 face each other.
An empty cell is formed by polymerizing and sticking via a sealing material 7. The empty cell is filled with liquid crystal 8 from the injection port by a vacuum injection method or the like.
Are sealed and sealed with an adhesive such as an ultraviolet curable resin to form a liquid crystal panel.
【０００４】一般に、ガラス基板を用いた液晶パネルの
場合には、上下基板を重合貼着した後に液晶パネルの外
形形状に合わせてスクライブなどにより分断し、所定の
外形形状に分断すると同時に、駆動回路との接続用の接
続端子を露出させている。しかしながら、可撓性基板１
を用いた液晶パネルの場合には、ガラス基板のようなへ
き開性を持たないため同様な分断方法を用いることはで
きない。同様の方法で可撓性基板を切断すると、可撓性
を有しているが故に接続端子にキズがつきやすく断線の
原因となる。そのため、図７に示したように可撓性基板
１を重合貼着する前にあらかじめ電極端子との対向面に
切削刃を用いて開口部９を設けて電極端子を露出させて
以降の工程を流動させている。In general, in the case of a liquid crystal panel using a glass substrate, the upper and lower substrates are superposed and adhered, and then divided by scribing or the like in accordance with the outer shape of the liquid crystal panel. The connection terminal for connection with the terminal is exposed. However, the flexible substrate 1
In the case of a liquid crystal panel using a liquid crystal panel, a similar dividing method cannot be used because the liquid crystal panel does not have cleavage like a glass substrate. When the flexible substrate is cut by the same method, the connection terminal is easily scratched because of the flexibility, which causes disconnection. Therefore, as shown in FIG. 7, before the flexible substrate 1 is superimposed and bonded, an opening 9 is provided in advance using a cutting blade on the surface facing the electrode terminal to expose the electrode terminal, and the subsequent steps are performed. It is flowing.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、あらか
じめ開口部９を形成するため、ハンドリング性が悪く各
工程において弊害が生じていた。特に、基板に複数個パ
ターンが形成されている場合には、開口部９もパターン
に応じて複数個形成する必要が生じ、上下基板の位置合
せ精度に問題が生じていた。外形形状によっては、開口
部の形状が複雑になり、パネル組立の際に均一に加圧す
ることができず、セル厚ムラが発生しやすいという問題
を有していた。However, since the openings 9 are formed in advance, the handling properties are poor and adverse effects are caused in each step. In particular, when a plurality of patterns are formed on the substrate, it is necessary to form a plurality of openings 9 in accordance with the patterns, causing a problem in the alignment accuracy of the upper and lower substrates. Depending on the external shape, the shape of the opening becomes complicated, so that it is not possible to apply pressure uniformly during panel assembly, and there is a problem that cell thickness unevenness is likely to occur.
【０００６】また、ロールプロセスにおいては、開口部
９のエッジ部にテンションがかかるため、基板が変形
し、場合によっては可撓性基板が破損してしまうなどの
問題があった。この傾向は、可撓性基板の厚さが薄く、
柔らかい基板ほど顕著である。Further, in the roll process, there is a problem that the substrate is deformed and, in some cases, the flexible substrate is damaged because tension is applied to the edge of the opening 9. This tendency is due to the thinness of the flexible substrate,
This is more pronounced for soft substrates.
【０００７】さらに、液晶パネルの外形については、上
下基板の重合貼着以後に切断を行っていたため、別の工
程を挟んで切断工程が２回必要になり、生産性に問題が
あった。また、複雑な外形形状になるほど切断時にシー
ル部にストレスがかかりやすくなり、シール部の破壊に
より上下基板が剥離しやすくなるなどの問題があった。Further, since the cutting of the outer shape of the liquid crystal panel is performed after the superposition of the upper and lower substrates, the cutting step is required twice with another step interposed therebetween, and there is a problem in productivity. In addition, there is a problem that the more complicated the external shape, the more easily the stress is applied to the seal portion at the time of cutting, and the more easily the upper and lower substrates are easily peeled off due to the destruction of the seal portion.
【０００８】従来のガラス基板を用いた液晶パネルにお
いては、直線で構成された外形形状にしか対応できず、
電子機器に搭載する際デザイン上の自由度が少なかっ
た。また、円形状等の場合には額縁のデッドスペースを
極力少なくするために4隅をさらにカットし８角形形状
等多角形の液晶パネルとして、円形状に極力近い形状に
していたため切断工程が多くなる等の問題を有してい
た。A conventional liquid crystal panel using a glass substrate can cope only with an external shape formed by straight lines.
When mounted on electronic devices, there was little freedom in design. In the case of a circular shape or the like, the four corners are further cut to minimize the dead space of the picture frame, and a polygonal liquid crystal panel such as an octagonal shape is formed as close to a circular shape as possible, so the number of cutting steps increases. And so on.
【０００９】そこで、本発明は、複雑な外形形状の液晶
パネルにおいても、生産性に優れた液晶パネルの製造方
法を提供することを目的とする。Accordingly, an object of the present invention is to provide a method of manufacturing a liquid crystal panel excellent in productivity even in a liquid crystal panel having a complicated external shape.
【００１０】また、本発明の製造方法としたことによ
り、従来困難であった様々な外形形状の液晶パネルを提
供することを目的とする。Another object of the present invention is to provide a liquid crystal panel having various external shapes, which has been difficult in the past, by using the manufacturing method of the present invention.
【００１１】さらに、様々な外形形状の液晶パネルを搭
載したことにより、デザイン上の自由度を大幅に向上さ
せた電子機器を提供することを目的とする。It is still another object of the present invention to provide an electronic device in which liquid crystal panels having various external shapes are mounted to greatly improve the degree of freedom in design.
【００１２】[0012]
【課題を解決するための手段】本発明の液晶パネルの製
造方法は、一対の可撓性基板の表面には透明電極が形成
され、その表面には配向処理が施され、少なくとも液晶
層を介して前記一対の可撓性基板を重合貼着する液晶パ
ネルの製造方法において、少なくとも一方の前記可撓性
基板の前記透明電極形成面の反対側の表面に可撓性を有
する部材を貼着する工程と、前記可撓性基板と前記可撓
性を有する部材とが貼着された状態で前記可撓性基板の
みを所定の形状に切断する工程と、前記可撓性を有する
部材を前記可撓性基板から剥離する工程とを含むことを
特徴とする。前記液晶パネルの製造方法としたことによ
り、ハンドリング性に優れ、上下基板の貼り合わせの位
置精度が向上するという効果を有する。また、パネルの
外形形状に関係なく本発明が適応できるという効果を有
する。According to a method for manufacturing a liquid crystal panel of the present invention, a transparent electrode is formed on a surface of a pair of flexible substrates, an alignment treatment is performed on the surface, and at least a liquid crystal layer is interposed therebetween. In the method for manufacturing a liquid crystal panel in which the pair of flexible substrates are superimposed and bonded, a flexible member is bonded to a surface of at least one of the flexible substrates opposite to the transparent electrode forming surface. A step of cutting only the flexible substrate into a predetermined shape in a state where the flexible substrate and the flexible member are adhered to each other; Separating from the flexible substrate. The method of manufacturing a liquid crystal panel has an effect that the handleability is excellent and the positional accuracy of bonding the upper and lower substrates is improved. Further, there is an effect that the present invention can be applied regardless of the outer shape of the panel.
【００１３】本発明の液晶パネルの製造方法は、前記可
撓性を有する部材が前記可撓性基板の変形を抑制できる
部材であることを特徴とする。前記液晶パネルの製造方
法としたことにより、厚さが薄く、コシのない基材を用
いた場合にも前記可撓性を有する部材により変形を抑制
することが可能となり、ハンドリング性が向上するとい
う効果を有する。In the method for manufacturing a liquid crystal panel according to the present invention, the flexible member is a member capable of suppressing deformation of the flexible substrate. According to the method of manufacturing the liquid crystal panel, it is possible to suppress deformation by the flexible member even when using a thin, low-strength base material, thereby improving handleability. Has an effect.
【００１４】本発明の液晶パネルの製造方法は、前記可
撓性基板と前記可撓性を有する部材の熱膨張係数が略一
致していることを特徴とする。前記液晶パネルの製造方
法としたことにより、工程中においても同様の挙動を示
すため変形が抑制でき、流動性に優れるという効果を有
する。In the method for manufacturing a liquid crystal panel according to the present invention, the flexible substrate and the flexible member have substantially the same thermal expansion coefficient. By adopting the liquid crystal panel manufacturing method, the same behavior is exhibited even during the process, so that deformation can be suppressed, and there is an effect that the fluidity is excellent.
【００１５】本発明の液晶パネルの製造方法は、前記可
撓性基板のみを所定の形状に切断する工程が、前記可撓
性基板に対して垂直方向から少なくとも前記可撓性基板
を貫通させる切断手段であることを特徴とする。前記液
晶パネルの製造方法としたことにより、可撓性基板に余
分なストレスがかからず、可撓性基板のみを外形形状に
分断することができる。また、可撓性を有する部材に貼
着された状態での流動が可能となるため、ハンドリング
性に優れるという効果を有する。さらに、複雑な形状の
基板に対しても簡単に対応できるという効果を有する。In the method of manufacturing a liquid crystal panel according to the present invention, the step of cutting only the flexible substrate into a predetermined shape includes the step of penetrating at least the flexible substrate in a direction perpendicular to the flexible substrate. Means. According to the method of manufacturing the liquid crystal panel, no extra stress is applied to the flexible substrate, and only the flexible substrate can be cut into an outer shape. In addition, since it becomes possible to flow while being attached to a flexible member, there is an effect that the handling property is excellent. Further, there is an effect that it is possible to easily cope with a substrate having a complicated shape.
【００１６】本発明の液晶パネルの製造方法は、前記切
断手段が所定の形状に成型された切削刃であることを特
徴とする。前記液晶パネルの製造方法としたことによ
り、リタデーションの発現や基板の変形ががほとんどな
く、簡便な方法で様々な形状に可撓性基板を切断できる
という効果を有する。In the method for manufacturing a liquid crystal panel according to the present invention, the cutting means is a cutting blade formed into a predetermined shape. The method of manufacturing a liquid crystal panel has an effect that a flexible substrate can be cut into various shapes by a simple method with little occurrence of retardation and deformation of the substrate.
【００１７】本発明の液晶パネルの製造方法は、前記切
断手段がレーザービームであることを特徴とする。前記
液晶パネルの製造方法としたことにより、非接触で任意
の形状に可撓性基板のみを切断することが可能になり、
切断時の発塵を抑えることができる。In the method for manufacturing a liquid crystal panel according to the present invention, the cutting means is a laser beam. With the method of manufacturing the liquid crystal panel, it is possible to cut only the flexible substrate into an arbitrary shape in a non-contact manner,
Dust generation during cutting can be suppressed.
【００１８】本発明の液晶パネルの製造方法は、前記可
撓性を有する部材を前記可撓性基板から剥離する工程が
前記一対の可撓性基板が重合貼着される工程以後の工程
であることを特徴とする。前記液晶パネルの製造方法と
することにより、切断せずに流動するのと同様の流動が
可能になるため流動性に優れるという効果を有する。ま
た、流動時は大判のままで流動し空セル形成以後の工程
で個々の液晶パネルに分離することが可能なため、生産
性に優れるという効果を有する。In the method of manufacturing a liquid crystal panel according to the present invention, the step of peeling the flexible member from the flexible substrate is a step after the step of stacking the pair of flexible substrates. It is characterized by the following. The method of manufacturing a liquid crystal panel has the effect of being excellent in fluidity because the same flow as flowing without cutting is enabled. In addition, when flowing, it can flow as it is in a large format and can be separated into individual liquid crystal panels in the steps after the formation of empty cells, so that there is an effect that the productivity is excellent.
【００１９】本発明の液晶パネルの製造方法は、前記可
撓性基板が所定の形状で切断され、液晶パネルを構成す
る部位以外の可撓性基板についても前記可撓性を有する
部材に貼着させたままの状態で流動することを特徴とす
る。前記液晶パネルの製造方法としたことにより、シー
ル材の硬化の際に均一な加圧が可能になるため、セル厚
均一性に優れた液晶パネルが得られるという効果を有す
る。In the method for manufacturing a liquid crystal panel according to the present invention, the flexible substrate is cut into a predetermined shape, and the flexible substrate other than the portion constituting the liquid crystal panel is also adhered to the flexible member. It is characterized in that it flows in the state as it is. By adopting the liquid crystal panel manufacturing method, uniform pressure can be applied when the sealing material is cured, and therefore, there is an effect that a liquid crystal panel having excellent cell thickness uniformity can be obtained.
【００２０】本発明の液晶パネルは、前述の製造方法で
製造されたことを特徴とする。前記構成としたことによ
り、様々な外形形状の液晶パネルの製造が可能になると
共に、量産性に優れるという効果を有する。A liquid crystal panel according to the present invention is manufactured by the above-described manufacturing method. With the above configuration, it is possible to manufacture liquid crystal panels having various external shapes, and it has an effect of being excellent in mass productivity.
【００２１】本発明の電子機器は、前述の液晶パネルが
搭載されたことを特徴とする。前記構成としたことによ
り、デザイン上の自由度が大幅に向上した電子機器を提
供することが可能になるという効果を有する。 〔発明の詳細な説明〕An electronic apparatus according to the present invention is characterized in that the above-mentioned liquid crystal panel is mounted. With the above-described configuration, an electronic device with significantly improved design flexibility can be provided. [Detailed description of the invention]
【００２２】[0022]
【発明の実施の形態】以下本発明を図面に基づいて詳細
に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings.
【００２３】［実施例１］図１は本発明の一実施例を示
す図である。２００ｍｍ幅でロール状のポリカーボネイ
ト（ＰＣ）などの可撓性基板１を同様のロール状の支持
フィルム２に粘着層３を介して重合粘着し、巻き取った
ものを流動用の基材として用いた。支持フィルム２は液
晶パネルの分断前であればどの工程で重合貼着しても制
限はないが、基板表面の流動時のキズなどを考慮すると
流動前にあらかじめ貼着されていることが望ましい。ま
た、支持フィルム２の貼着により可撓性基材１の変形を
抑制でき、且つ、可撓性基板１と支持フィルム２とが貼
着された状態において各工程においてストレスの影響な
どで変形しない材料を選択することが望ましい。本実施
例においては、可撓性基板１とほぼ同様の熱収縮率を有
する支持フィルム２を選択し、可撓性基板１と貼着して
流動を行った。[Embodiment 1] FIG. 1 shows an embodiment of the present invention. A 200 mm wide roll-shaped flexible substrate 1 such as polycarbonate (PC) was polymerized and adhered to a similar roll-shaped support film 2 via an adhesive layer 3, and the rolled one was used as a base material for flow. . The support film 2 may be applied in any process as long as it is before the liquid crystal panel is divided, but there is no limitation. Further, the deformation of the flexible base material 1 can be suppressed by sticking the support film 2, and in the state where the flexible substrate 1 and the support film 2 are stuck, there is no deformation in each process due to stress or the like. It is desirable to select a material. In the present example, a support film 2 having substantially the same heat shrinkage as that of the flexible substrate 1 was selected, adhered to the flexible substrate 1, and flowed.
【００２４】以下、図２，３を用いて本発明の液晶パネ
ルの製造方法について詳細に説明する。可撓性基板１と
支持フィルム２とを貼着させた状態で、ＩＴＯなどの透
明電極４を成膜し、任意の電極形状にパターニングを行
った。次いで、可撓性基板１を平行度が調整されたテー
ブルに固定し、パネル外形と同一形状の型に成型した切
削刃にて可撓性基板１のみを貫通しパネル外形に分断し
た。この際、切断刃の落し込み量は可撓性基板１の厚さ
＋３０μmとして切断部１０の位置で所定の外形形状に
切断した。また、切断位置を検出して切断することで位
置精度に優れた分断が可能になる。これにより、可撓性
基板１と一緒に支持フィルム２が分断されることもな
く、可撓性基板１の分断後も分断前と同様の状態で流動
が可能になる。本実施例では、切削刃を用いて可撓性基
板１を分断したが、可撓性基板１に変形やリタデーショ
ンを発現させず、支持フィルムが分断されなければ分断
手段には特に制限はないものとする。Hereinafter, the method for manufacturing the liquid crystal panel of the present invention will be described in detail with reference to FIGS. With the flexible substrate 1 and the support film 2 adhered, a transparent electrode 4 such as ITO was formed and patterned into an arbitrary electrode shape. Next, the flexible substrate 1 was fixed to a table whose parallelism was adjusted, and only the flexible substrate 1 was penetrated by a cutting blade molded into a mold having the same shape as the panel outer shape, and cut into panel outer shapes. At this time, the cutting blade was cut into a predetermined outer shape at the position of the cutting section 10 with the amount of dropping of the cutting blade set to the thickness of the flexible substrate 1 +30 μm. In addition, by detecting the cutting position and performing the cutting, the cutting can be performed with excellent positional accuracy. Thereby, the support film 2 is not divided along with the flexible substrate 1, and the flow can be performed in the same state after the division of the flexible substrate 1 as before the division. In this embodiment, the flexible substrate 1 is divided using a cutting blade. However, the flexible substrate 1 does not exhibit deformation or retardation, and there is no particular limitation on the dividing means as long as the support film is not divided. And
【００２５】次いで、基板表面に配向膜５をフレキソ印
刷等で形成し、液晶を整列させるためにラビングなどの
配向処理を施した。次いで、間隙保持部材６とシール材
７を介して可撓性基板１を相対向するように重ね合せ、
均一に加圧加熱することによりシール材７を硬化させ空
セルを作成した。この際、液晶パネルの構成部以外の部
分についても支持フィルム２に貼着したままの状態で以
降の工程の流動を行ったため、分断せずに流動するのと
同様の流動が可能になり、加圧時の圧力分布が均一にな
り、セル厚の面内均一性に優れるという効果を有する。
次いで、液晶パネルから支持フィルム２を剥離して、個
々の空セルに分断した。支持２フィルムの粘着層３は、
熱や薬品に対して耐性があるものが望ましいが、特にプ
ロセス前後の粘着強度が変化せずに剥離時に可撓性基板
１やセル厚に影響を及ぼさない程度の低い接着強度の材
料が望ましい。また、支持フィルム２の剥離時に粘着層
３が可撓性基板１に転写されない材料が望ましい。Next, an alignment film 5 was formed on the substrate surface by flexographic printing or the like, and an alignment treatment such as rubbing was performed to align the liquid crystals. Next, the flexible substrates 1 are overlapped so as to face each other with the gap holding member 6 and the sealing material 7 interposed therebetween.
By uniformly applying pressure and heating, the sealing material 7 was cured to form empty cells. At this time, since the flow of the subsequent steps was performed with the parts other than the constituent parts of the liquid crystal panel adhered to the support film 2, the same flow as the flow without dividing was enabled. This has the effect that the pressure distribution at the time of pressurization becomes uniform and the in-plane uniformity of the cell thickness is excellent.
Next, the support film 2 was peeled off from the liquid crystal panel, and divided into individual empty cells. The adhesive layer 3 of the support 2 film is
A material having resistance to heat and chemicals is desirable, but a material having a low adhesive strength that does not change the adhesive strength before and after the process and does not affect the thickness of the flexible substrate 1 or the cell at the time of peeling is desirable. Further, a material that does not transfer the adhesive layer 3 to the flexible substrate 1 when the support film 2 is peeled off is desirable.
【００２６】前述の空セルを注入用の治具にセットした
後、真空注入法等によりネマチック液晶８を封入し、紫
外線硬化樹脂などにより注入口を封口した。その後、偏
光板を貼付し液晶パネルを得た。After the empty cell was set in a jig for injection, a nematic liquid crystal 8 was sealed by a vacuum injection method or the like, and the injection port was sealed with an ultraviolet curable resin or the like. Thereafter, a polarizing plate was attached to obtain a liquid crystal panel.
【００２７】［実施例２］図３に示すように、実施例1
と同様に空セルを組み立てた後、一方の可撓性基板１に
貼着されている支持フィルム２を剥離して注入口１１を
露出させて液晶を封入した。次いで、他方の可撓性基板
１に貼着されている支持フィルム２を剥離して個々の液
晶パネルに分断した。[Embodiment 2] As shown in FIG.
After assembling the empty cell in the same manner as described above, the support film 2 attached to one of the flexible substrates 1 was peeled off to expose the injection port 11, and the liquid crystal was sealed. Next, the support film 2 adhered to the other flexible substrate 1 was peeled off and divided into individual liquid crystal panels.
【００２８】［実施例３］図４に示すように、実施例1
と同様に空セルを組み立てた後、注入口１１を露出させ
真空注入法等で液晶８をセル内に封入し、紫外線硬化樹
脂などで注入口１１を封口した。その後、支持フィルム
２を可撓性基板１から剥離した。これにより、工程中で
基板表面が露出されることは皆無となり、基板表面にキ
ズがつくことはなくなり、洗浄工程も不要になるという
効果を有する。また、多数個取りのパネルにおいても流
動性に優れるという効果を有する。[Embodiment 3] As shown in FIG.
After assembling the empty cell, the injection port 11 was exposed, the liquid crystal 8 was sealed in the cell by a vacuum injection method or the like, and the injection port 11 was sealed with an ultraviolet curable resin or the like. Thereafter, the support film 2 was peeled from the flexible substrate 1. Thereby, the surface of the substrate is not exposed during the process, the surface of the substrate is not damaged, and the cleaning process is not required. In addition, there is an effect that the fluidity is excellent even in a multi-panel panel.
【００２９】［実施例４］実施例1と同様に任意の形状
にパターニングを行った後、ＹＡＧレーザーにより可撓
性基板１のみを任意の形状に切断した。レーザーの焦点
深度内であれば、焦点位置の調整は特に必要ないが、可
撓性基板１のうねりがこの範囲を超える場合には、うね
りを検出し、焦点位置を調整しながらレーザーを照射す
ることで確実な切断が可能になる。また、非接触で任意
形状に切断できるためリタデーションの発現もなく、発
塵を抑えることができるという効果を有する。さらに、
切削刃によるものと比較して、破断面の形状に優れ、加
圧時の圧力均一性に優れるという効果を有する。以後の
工程については、実施例１と同様として液晶パネルを作
成した。Example 4 After patterning into an arbitrary shape in the same manner as in Example 1, only the flexible substrate 1 was cut into an arbitrary shape by a YAG laser. Adjustment of the focal position is not particularly necessary within the depth of focus of the laser, but when the undulation of the flexible substrate 1 exceeds this range, the undulation is detected and the laser is irradiated while adjusting the focal position. As a result, reliable cutting becomes possible. In addition, since it can be cut into an arbitrary shape in a non-contact manner, there is no retardation, and dust generation can be suppressed. further,
Compared with a cutting blade, it has an effect of being superior in the shape of the fractured surface and excellent in pressure uniformity during pressurization. With respect to the subsequent steps, a liquid crystal panel was prepared in the same manner as in Example 1.
【００３０】［実施例５］実施例１と同様の製造方法で
円形状の液晶パネルを製造し、腕時計の表示部として搭
載した。本発明の構成としたことにより、額縁のデッド
スペースが少なくほぼ全面が有効に表示に使えるという
効果を有する。また、特殊な形状の液晶パネルにおいて
も従来の工程をほとんど変更することなく、対応するこ
とが可能になるため、生産性に優れた液晶パネルの提供
が可能になり、電子機器のデザイン上の自由度が大幅に
向上するという効果を有する。Example 5 A circular liquid crystal panel was manufactured by the same manufacturing method as in Example 1, and was mounted as a display unit of a wristwatch. With the configuration of the present invention, there is an effect that the dead space of the frame is small and almost the entire surface can be effectively used for display. In addition, since it is possible to respond to a specially shaped liquid crystal panel with little change to the conventional process, it is possible to provide a liquid crystal panel with excellent productivity, and to have freedom in designing electronic devices. This has the effect of greatly improving the degree.
【００３１】本実施例では、電子機器の一例として腕時
計を用いたが、他の電子機器についても搭載可能である
ことはいうまでもない。In this embodiment, a wristwatch is used as an example of an electronic device, but it goes without saying that other electronic devices can be mounted.
【００３２】[0032]
【発明の効果】本発明の液晶装置の製造方法は、一対の
可撓性基板の表面には透明電極が形成され、その表面に
は配向処理が施され、少なくとも液晶層を介して前記一
対の可撓性基板を重合貼着する液晶パネルの製造方法に
おいて、少なくとも一方の前記可撓性基板の前記透明電
極形成面の反対側の表面に可撓性を有する部材を貼着す
る工程と、前記可撓性基板と前記可撓性を有する部材と
が貼着された状態で前記可撓性基板のみを所定の形状に
切断する工程と、前記可撓性を有する部材を前記可撓性
基板から剥離する工程とを有するので、様々な外形形状
の液晶パネルのハンドリング性に優れ、上下基板の貼り
合わせの位置精度が高いという効果を有する。また、パ
ネルの形状に関係なく本発明が適応できるという効果を
有する。また、フィルム基材の裏面が保護されているた
め、流動時のキズの防止や洗浄工程が不要になる等の効
果を有する。According to the method of manufacturing a liquid crystal device of the present invention, a transparent electrode is formed on a surface of a pair of flexible substrates, an alignment treatment is performed on the surface, and the pair of flexible substrates are interposed at least via a liquid crystal layer. In a method for manufacturing a liquid crystal panel in which a flexible substrate is superimposed and adhered, a step of attaching a flexible member to a surface of at least one of the flexible substrates opposite to a surface on which the transparent electrode is formed; A step of cutting only the flexible substrate into a predetermined shape in a state where the flexible substrate and the flexible member are attached, and removing the flexible member from the flexible substrate. Since there is a step of peeling, there is an effect that liquid crystal panels having various external shapes are excellent in handling properties and the positional accuracy of bonding the upper and lower substrates is high. Further, there is an effect that the present invention can be applied regardless of the shape of the panel. In addition, since the back surface of the film substrate is protected, there are effects such as prevention of scratches at the time of flowing and no need for a washing step.
【００３３】本発明の液晶パネルは、前述の製造方法で
製造したことにより、セル厚の均一性に優れ、従来困難
であった様々な外形形状の液晶パネルを提供することが
可能となるという効果を有する。The liquid crystal panel of the present invention, which is manufactured by the above-described manufacturing method, is excellent in the uniformity of the cell thickness and can provide liquid crystal panels of various external shapes which have been difficult in the past. Having.
【００３４】本発明の電子機器は、前述の液晶パネルを
搭載することが可能になるため、デザイン上の自由度が
大幅に向上した電子機器を提供することが可能になると
いう効果を有する。Since the electronic device of the present invention can be equipped with the above-mentioned liquid crystal panel, it has an effect that it is possible to provide an electronic device with greatly improved design flexibility.
【図１】本発明の液晶パネルの製造方法の可撓性基板と
支持フィルムの貼着状態を示す図。FIG. 1 is a view showing a state in which a flexible substrate and a support film are attached to each other in a method for manufacturing a liquid crystal panel according to the present invention.
【図２】本発明の液晶パネルの製造方法のフローを示す
図。FIG. 2 is a diagram showing a flow of a liquid crystal panel manufacturing method of the present invention.
【図３】本発明の液晶パネルの製造方法の一実施例を示
す斜視図。FIG. 3 is a perspective view showing one embodiment of a method for manufacturing a liquid crystal panel of the present invention.
【図４】本発明の液晶パネルの製造方法の他の実施例を
示す斜視図。FIG. 4 is a perspective view showing another embodiment of the method for manufacturing a liquid crystal panel of the present invention.
【図５】本発明の液晶パネルの製造方法の他の実施例を
示す斜視図。FIG. 5 is a perspective view showing another embodiment of the method for manufacturing a liquid crystal panel of the present invention.
【図６】液晶パネルの断面構造を示す図。FIG. 6 is a diagram showing a cross-sectional structure of a liquid crystal panel.
【図７】従来の液晶パネルの製造方法を示す図。FIG. 7 is a diagram showing a conventional liquid crystal panel manufacturing method.
１．可撓性基板 ２．支持フィルム ３．粘着層 ４．透明電極 ５．配向膜 ６．間隙保持部材 ７．シール材 ８．液晶 ９．開口部 １０．切断部 １１．注入口 1. Flexible substrate 2. Support film 3. Adhesive layer 4. Transparent electrode 5. Alignment film 6. Gap holding member 7. Seal material 8. Liquid crystal 9. Opening 10. Cutting section 11. Inlet
Claims (10)
成され、その表面には配向処理が施され、少なくとも液
晶層を介して前記一対の可撓性基板を重合貼着する液晶
パネルの製造方法において、 少なくとも一方の前記可撓性基板の前記透明電極形成面
の反対側の表面に可撓性を有する部材を貼着する工程
と、 前記可撓性基板と前記可撓性を有する部材とが貼着され
た状態で少なくとも前記可撓性基板を所定の形状に切断
する工程と、 前記可撓性を有する部材を前記可撓性基板から剥離する
工程とを有することを特徴とする液晶パネルの製造方
法。A transparent electrode is formed on a surface of a pair of flexible substrates, an alignment process is performed on the surfaces, and a liquid crystal is attached to at least the pair of flexible substrates via a liquid crystal layer. In the method for manufacturing a panel, a step of attaching a flexible member to a surface of at least one of the flexible substrates opposite to the transparent electrode forming surface; A step of cutting at least the flexible substrate into a predetermined shape in a state where the flexible member is adhered, and a step of peeling the flexible member from the flexible substrate. Liquid crystal panel manufacturing method.
あって、 前記可撓性を有する部材が前記可撓性基板の変形を抑制
できる部材であることを特徴とする液晶パネルの製造方
法。2. The method for manufacturing a liquid crystal panel according to claim 1, wherein the flexible member is a member capable of suppressing deformation of the flexible substrate. Method.
あって、 前記可撓性基板と前記可撓性を有する部材の熱膨張係数
を略一致させたことを特徴とする液晶パネルの製造方
法。3. The method for manufacturing a liquid crystal panel according to claim 1, wherein said flexible substrate and said flexible member have substantially the same thermal expansion coefficient. Production method.
方法であって、 前記可撓性基板のみを所定の形状に切断する工程が、前
記可撓性基板に対して垂直方向から少なくとも前記可撓
性基板を貫通させる切断手段であることを特徴とする液
晶パネルの製造方法。4. The method for manufacturing a liquid crystal panel according to claim 1, wherein the step of cutting only the flexible substrate into a predetermined shape is performed at least from a direction perpendicular to the flexible substrate. A method for manufacturing a liquid crystal panel, comprising cutting means for penetrating the flexible substrate.
あって、 前記切断手段が所定の形状に成型された切削刃であるこ
とを特徴とする液晶パネルの製造方法。5. The method for manufacturing a liquid crystal panel according to claim 4, wherein said cutting means is a cutting blade molded into a predetermined shape.
あって、 前記切断手段がレーザービームであることを特徴とする
液晶パネルの製造方法。6. The method for manufacturing a liquid crystal panel according to claim 4, wherein said cutting means is a laser beam.
あって、 前記可撓性を有する部材を前記可撓性基板から剥離する
工程が前記一対の可撓性基板が重合貼着される工程以後
の工程であることを特徴とする液晶パネルの製造方法。7. The method for manufacturing a liquid crystal panel according to claim 1, wherein the step of peeling off the flexible member from the flexible substrate is performed by laminating the pair of flexible substrates. A method for manufacturing a liquid crystal panel, which is a step after the step of forming a liquid crystal panel.
あって、 前記可撓性基板が所定の形状で切断され、液晶パネルを
構成する部位以外の前記可撓性基板が前記可撓性を有す
る部材に貼着されたままの状態で流動することを特徴と
する液晶パネルの製造方法。8. The method for manufacturing a liquid crystal panel according to claim 1, wherein the flexible substrate is cut into a predetermined shape, and the flexible substrate other than a part constituting the liquid crystal panel is provided with the flexible substrate. A liquid crystal panel manufacturing method characterized by flowing while being attached to a member having properties.
れたことを特徴とする液晶パネル。9. A liquid crystal panel manufactured by the manufacturing method according to claim 1.
たことを特徴とする電子機器。10. An electronic apparatus comprising the liquid crystal panel according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25552797A JP3661368B2 (en) | 1997-09-19 | 1997-09-19 | Method for manufacturing liquid crystal panel, liquid crystal panel and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25552797A JP3661368B2 (en) | 1997-09-19 | 1997-09-19 | Method for manufacturing liquid crystal panel, liquid crystal panel and electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1195183A true JPH1195183A (en) | 1999-04-09 |
| JP3661368B2 JP3661368B2 (en) | 2005-06-15 |
Family
ID=17279986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25552797A Expired - Fee Related JP3661368B2 (en) | 1997-09-19 | 1997-09-19 | Method for manufacturing liquid crystal panel, liquid crystal panel and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3661368B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001179473A (en) * | 1999-12-24 | 2001-07-03 | Semiconductor Energy Lab Co Ltd | Laser device, method for cutting substrate using laser beam, and method for manufacturing semiconductor device |
| JP2002043791A (en) * | 2000-07-27 | 2002-02-08 | Bridgestone Corp | Light transmission laminate with electromagnetic wave shieldability and its bonding method |
| JP2002351343A (en) * | 2001-05-24 | 2002-12-06 | Sony Corp | Display panel manufacturing method |
| CN106773207A (en) * | 2016-12-26 | 2017-05-31 | 武汉华星光电技术有限公司 | The manufacture method of display panel |
-
1997
- 1997-09-19 JP JP25552797A patent/JP3661368B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001179473A (en) * | 1999-12-24 | 2001-07-03 | Semiconductor Energy Lab Co Ltd | Laser device, method for cutting substrate using laser beam, and method for manufacturing semiconductor device |
| JP2002043791A (en) * | 2000-07-27 | 2002-02-08 | Bridgestone Corp | Light transmission laminate with electromagnetic wave shieldability and its bonding method |
| JP2002351343A (en) * | 2001-05-24 | 2002-12-06 | Sony Corp | Display panel manufacturing method |
| CN106773207A (en) * | 2016-12-26 | 2017-05-31 | 武汉华星光电技术有限公司 | The manufacture method of display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3661368B2 (en) | 2005-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2012305101B2 (en) | Method for manufacturing curved-surface display | |
| EP2741126B1 (en) | Method for manufacturing curved-surface display and the corresponding curved-surface display | |
| US6665043B1 (en) | Bonding method and bonding device of substrates and manufacturing method of a liquid crystal display device | |
| CN112416164B (en) | Attaching method of touch display panel, touch display panel and electronic equipment | |
| US6836311B2 (en) | Seal pattern for liquid crystal display device including first, second and third dummy seal patterns in non-active area | |
| US20040027530A1 (en) | Producing method of the liquid crystal display panel | |
| JP2008225398A (en) | Manufacturing method of liquid crystal display element | |
| JPH1195183A (en) | Liquid crystal panel manufacturing method, liquid crystal panel and electronic equipment | |
| KR100491020B1 (en) | Method of manufacturing flat display element | |
| TWI715253B (en) | Display device | |
| JP3470871B2 (en) | Liquid crystal display panel manufacturing method | |
| JP3277446B2 (en) | Manufacturing method of liquid crystal display device | |
| US9229258B2 (en) | Liquid crystal mother panel and manufacturing method | |
| JP2007248594A (en) | Method for manufacturing liquid crystal device | |
| JP2007033982A (en) | Manufacturing method of liquid crystal display | |
| JPH11305214A (en) | Production of liquid crystal cell | |
| JP3771392B2 (en) | Method for producing liquid crystal display film and liquid crystal display film | |
| KR102156555B1 (en) | Glass film laminate | |
| JP2001033791A (en) | Manufacture of film liquid crystal display panel | |
| JP2000187201A (en) | Manufacture of film-like liquid crystal panel | |
| JP3671506B2 (en) | Liquid crystal device and manufacturing method thereof | |
| JP2008225397A (en) | Method for manufacturing liquid crystal display element | |
| JP2007140132A (en) | Liquid crystal display device and method for manufacturing the same | |
| JP2001051257A (en) | Production of liquid crystal display panel | |
| JPH11271761A (en) | Manufacture of liquid crystal display panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20041015 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20041019 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20041217 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20050301 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20050314 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080401 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090401 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090401 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100401 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110401 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110401 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120401 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130401 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130401 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140401 Year of fee payment: 9 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |