JPS62231927A - Production of liquid crystal display element - Google Patents
Production of liquid crystal display elementInfo
- Publication number
- JPS62231927A JPS62231927A JP7480586A JP7480586A JPS62231927A JP S62231927 A JPS62231927 A JP S62231927A JP 7480586 A JP7480586 A JP 7480586A JP 7480586 A JP7480586 A JP 7480586A JP S62231927 A JPS62231927 A JP S62231927A
- Authority
- JP
- Japan
- Prior art keywords
- substrates
- liquid crystal
- sealant
- crystal display
- rays
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 26
- 239000000758 substrate Substances 0.000 claims abstract description 37
- 239000000853 adhesive Substances 0.000 claims abstract description 25
- 230000001678 irradiating effect Effects 0.000 claims abstract description 8
- 125000006850 spacer group Chemical group 0.000 claims abstract description 3
- 230000001070 adhesive effect Effects 0.000 claims description 22
- 239000003566 sealing material Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 13
- 239000000565 sealant Substances 0.000 abstract description 12
- 238000007650 screen-printing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 2
- 210000002858 crystal cell Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
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関し、更に詳しく
は、２枚の基板を一定の間隔ｔもって貼り合わせる方法
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a liquid crystal display element, and more particularly to a method for bonding two substrates together with a constant distance t.
一般に、従来の液晶表示素子にかいては、基板と基板を
貼り合わせ、基板間に液晶を封じ込めるシール材として
熱硬化型の接着剤が用いられてい友。この工うな接着剤
の代表としてはエポキシ接着剤があり、未硬化樹脂をス
クリーン印ｅ１３等に二って一力の基板に塗布しｔのち
他方の基板と貼り合わせ、２枚の基板に圧力’ａ−７Ｊ
Ｑえて押しつぶしながら一定時間熱を加えて硬化させる
ことに五って液晶表示素子を製造していた。この熱硬化
型接着剤をシール材に用いた液晶表示素子の利点として
は、上記の様な製造方法のため犬値生並に適丁とともに
、熱に五って接着剤が完へに硬化するので液晶化合物に
悪影響を与えず、比較的安価な高品質の液晶表示素子が
供給出来ることである。Generally, in conventional liquid crystal display devices, a thermosetting adhesive is used as a sealant to bond the substrates together and seal the liquid crystal between the substrates. A typical example of this type of adhesive is epoxy adhesive, in which uncured resin is applied to one substrate using a screen stamp e13, etc., then bonded to the other substrate, and pressure is applied to the two substrates. a-7J
Q. Liquid crystal display elements were manufactured by applying heat for a certain period of time to harden the material while crushing it. The advantage of liquid crystal display elements using this thermosetting adhesive as a sealing material is that because of the manufacturing method described above, the adhesive can be completely cured by heat and is as accurate as a dog's raw material. Therefore, it is possible to supply a relatively inexpensive high-quality liquid crystal display element without adversely affecting the liquid crystal compound.
一方、この液晶表示素子の欠点としては、接着剤？硬化
させる之めに高温を長時間必要とするので制造時間が延
びること、基板に熱歪みが残ることにある。更に、２枚
の基板の熱膨張係数が厳密に同じであることが要求され
る之め、異種材料の基板が使用出来ないこと及び場合に
工っては基板表面に形放した薄膜等にヒビ−Ｎ！が入る
ことである。On the other hand, the disadvantage of this liquid crystal display element is the adhesive. Since high temperature is required for a long time for curing, manufacturing time is extended and thermal distortion remains on the substrate. Furthermore, because the coefficients of thermal expansion of the two substrates are required to be exactly the same, substrates made of different materials cannot be used, and in some cases, cracks may occur in the thin film formed on the surface of the substrate. -N! is included.
この熱硬化型接着剤全シール材として用いる従来のｇ、
晶表示素子が有する欠点を除去する為に、シール材とし
て硬化に熱を用いない接着剤を使用するというアイデア
は容易に考えられる。この工うな接着剤の一つに紫外ｍ
硬化型接着剤がある。Conventional g used as a total sealing material for this thermosetting adhesive,
In order to eliminate the drawbacks of crystal display elements, it is easy to think of the idea of using an adhesive that does not require heat to cure as a sealing material. One of these adhesives is UV rays.
There is a hardening adhesive.
液ル表示素子においては、一般に透明な基板を使用する
ことが多いので紫外線によつて接着剤を硬化させるＣと
は便利であるといえる。未硬化の紫外ｍ硬化型接着剤金
、エポキシ樹脂などと同様にスクリーン印−１に工って
一力の基板に塗布しｔのち、２枚の基板の背面刀１ら圧
力を加えつつ紫外線？照射しシール材ｋＮ化させること
に工って、液晶表示素子を製造することができる。Since transparent substrates are generally used in liquid display elements, it can be said that C, which cures the adhesive with ultraviolet rays, is convenient. Uncured ultraviolet curing adhesive gold, epoxy resin, etc. are applied to a single substrate using a screen mark 1, and then UV rays are applied while applying pressure from the back of the two substrates. A liquid crystal display element can be manufactured by irradiating the sealant and converting it into kN.
紫外線硬化凰接着剤全シール材に用い之液晶表示素子の
製造方法においては、前記の工うに、シール材の硬化の
際に基板の背面から力を加え続けることが必要であシ、
そうしない場合には、望ましい基板間隔が得られなくな
るという結果になる。In the method of manufacturing a liquid crystal display device in which an ultraviolet curing adhesive is used for all sealing materials, it is necessary to continue applying force from the back side of the substrate during curing of the sealing material, as described above.
Failure to do so will result in less than desirable substrate spacing.
し小し、紫外線硬化型接着剤に紫外線が全面にわ友って
均一に照射され、且つ、基板全体に均一に力を加え続け
ることは、製造上、非常に困難であった。丁なわち、こ
れを成しとげる几め、金属製の圧力印加装置の一部に基
板上すやや大きめの石英ガラスでできた窓を設けて、そ
の石英ガラス板でもって基板に圧力を加えつつシール材
に紫外線全照射して硬化させていたが、圧力による石英
ガラスの破壊が生じる危険性が存在し、厚みの厚い高価
なガラスを使用し九シ、取シ扱いを極めて慎重に行なう
、などの困１ｍを有してい次わけである。However, it is extremely difficult to uniformly irradiate the entire surface of an ultraviolet curable adhesive with ultraviolet rays and to continue to apply force uniformly to the entire substrate in terms of manufacturing. In other words, the method for achieving this is to install a slightly larger window made of quartz glass above the substrate in a part of the metal pressure application device, and apply pressure to the substrate with the quartz glass plate. The sealing material was cured by full irradiation with ultraviolet rays, but there was a risk that the quartz glass would break due to the pressure, so thick and expensive glass was used and the material was handled with extreme care. The problem is that it has a length of 1m.
本発明は、この従来の液晶表示素子の製造方法の問題点
と解決し、安価で品質の高い液晶表示素子を大量に供給
できる工うにしょうとするものであ、る。The present invention is intended to solve the problems of the conventional manufacturing method of liquid crystal display elements and to enable a large quantity of inexpensive, high-quality liquid crystal display elements to be supplied.
本発明に工れば、液晶表示素子の製造方法が片方の基板
に紫外・椋硬化型接着剤工りなるシール材全スク１１−
ン印制し、しかる後他力の基板と重ね合わせる工程と、
それらの基板に背面から力を加えつつ、シール材の中に
含まれるスペーサーに工って規定される基板間隔まで押
しつぶし、シールの一部に紫外線を照射して２枚の基板
を仮止めする工程と、前記背面からの力？取り去り、シ
ール材全体＃ＩＣ累外線全照射して、シール材である紫
外線硬化型接着剤のすべてを硬化させる工程とを具備す
ることを特徴とする。According to the present invention, the method for manufacturing a liquid crystal display element can be realized by applying an ultraviolet-curing adhesive to one of the substrates.
a step of printing the printed material and then overlapping it with a printed circuit board;
The process of applying force to the substrates from the back, crushing them to the distance specified by the spacer included in the sealant, and irradiating a portion of the seal with ultraviolet rays to temporarily bond the two substrates together. And the force from the back? The method is characterized by comprising a step of removing the sealing material, and irradiating the entire #IC ultraviolet rays to cure all of the ultraviolet curable adhesive that is the sealing material.
以下、実池例全もとにして本発明について詳しく説明す
る。Hereinafter, the present invention will be explained in detail based on actual examples.
第１図は、本発明に二る実捲例の説明図であり。FIG. 1 is an explanatory diagram of a second actual winding example of the present invention.
特に仮止め工程の説明図である。図中、１訃工び２は液
晶表示素子を構成する電極基板であシ５は５紫外線硬化
型接着剤ルらなるシール材である。ま九、４．５はこの
液晶表示素子に圧力を加える加圧板である。木！！抱例
にかいては、加圧は加圧板の自重によって行なうことに
した、
５の加圧板：には、シール材の一部に紫外線が照射され
る工うな位置に複数の穴が明けである。まず、シール材
を一方の基板上にスクリーン印刷し友のち他方の基板と
貼り合わせｔ０シール材としては、ノーランド社製０７
日−９１の紫外線硬化型接着剤を使用し、それに粉砕し
たグラスファイバーを接着剤１０ｇに対してα１ｇ混入
させたものを用いた。In particular, it is an explanatory diagram of a temporary fixing process. In the figure, 1 and 2 are electrode substrates constituting a liquid crystal display element, and 5 is a sealing material made of an ultraviolet curable adhesive. 4.5 is a pressure plate that applies pressure to this liquid crystal display element. wood! ! In this example, we decided to apply pressure using the pressure plate's own weight.The pressure plate in step 5 has multiple holes at positions where a portion of the sealing material will be irradiated with ultraviolet rays. . First, the sealing material was screen printed on one board, and then it was pasted on the other board.The t0 sealing material was 07
An ultraviolet curable adhesive (Nihon-91) was used, and 1 g of pulverized glass fiber was mixed therein per 10 g of the adhesive.
次に、４と５の加圧板の間に上記貼９合わせ次液晶セル
全挾み込み加重全顎え友。加重はセル内面積１２につき
、α２匂になる工うにした。加重１ｚ４０秒間かけ九の
ち、加圧板の穴と通して紫外線を照射した。紫外線の総
１ｉは１０００．ｍｊとし九〇これに工って仮固定がで
きたので加圧板を取り除き、ベルト式紫外線照射装置に
液晶セルを流し、紫外線ｊｌヲ更に２０００ｍｊ照射し
て本硬化を行なつｔｏ
この後、液、１′＆ヲセル内に封入し液晶表示素子を光
取させた。本発明によるこの実捲例に工って作製しｔ液
晶表示素子、は、基板間間隔の精度が工く、表示品質に
ついても良好であつ友。又、従来の紫外線硬化型接着剤
を使用し次液晶表示素子の製造方式ＯＬうな製造上の危
険性が小さく、安全に作業を行なうことができ友。Next, the above-mentioned 9 is pasted between pressure plates 4 and 5, and the next liquid crystal cell is fully sandwiched and the entire jaw is pressed. The weight was set to be α2 for each cell inner area of 12. After applying a load of 1 x 40 seconds, ultraviolet rays were irradiated through the holes in the pressure plate. The total 1i of ultraviolet rays is 1000. mj and 90 After temporarily fixing this, remove the pressure plate, pour the liquid crystal cell into a belt-type ultraviolet irradiation device, and irradiate an additional 2000 mj of ultraviolet rays to perform main curing. After this, the liquid, The liquid crystal display element was sealed in a cell 1' and 1' to emit light. The liquid crystal display device manufactured using this example according to the present invention has a high precision in the spacing between the substrates and good display quality. In addition, the following method of manufacturing liquid crystal display devices using conventional ultraviolet curing adhesives has little manufacturing risk and can be carried out safely.
以上、災捲例をもとにして本発明について説明を行なっ
てきｔが、既に述べｔ二うに、本発明による方法におい
てに、従来の紫外線硬化型接着剤を使用し九液晶表示素
子の製造方式の工うな製造上の危険性が小さく、安全に
作業全行なうことができる。更に、仮圧着工程に自動装
置を使用した場合金力えると、紫外線の照射時間が短く
なる几め装置のサイクルタイムが短縮でき生産性を向上
させることができるというような効果も期待出来る。The present invention has been explained above based on disaster examples, but as already mentioned, in the method according to the present invention, a method for manufacturing a liquid crystal display element using a conventional ultraviolet curable adhesive is used. There is little manufacturing risk, and all work can be carried out safely. Furthermore, if an automatic device is used in the temporary pressure bonding process, it can be expected that the cycle time of the compacting device, which shortens the irradiation time of ultraviolet rays, can be shortened and productivity can be improved.
本発明の上記゛夾捲例の説明図においては、加圧板の下
方から紫外＃ｌを照射するようになっているが、上 の
加圧板の方から紫外線ｒ照射しても本発明の効果はなん
ら損なわれることはない。更に。In the explanatory diagram of the above-mentioned folding example of the present invention, ultraviolet #l is irradiated from below the pressure plate, but the effect of the present invention will not be achieved even if ultraviolet r is irradiated from the upper pressure plate. Nothing will be harmed. Furthermore.
加圧板に設は九人の位置や数については自由に設定する
ことができるが、液晶表示素子の形状や大きさｔ考慮し
て最適な条件をだしていくことも重要である。Although the position and number of the nine people on the pressure plate can be freely set, it is also important to take into account the shape and size of the liquid crystal display element to find the optimum conditions.
第１図は仮止め工程の説明図である。図の中の番号は次
のもの全指している。
１お工び２・・・・・・電極基板
５・・・・・・シール材FIG. 1 is an explanatory diagram of the temporary fixing process. The numbers in the diagram refer to all of the following: 1 Machining 2...Electrode substrate 5...Sealing material
Claims (1)
ル材を用いて液晶を封じこむ液晶表示素子の製造方法が
、片方の基板に紫外線硬化型接着剤よりなるシール材を
スクリーン印刷し、しかる後他方の基板と重ね合わせる
工程と、それらの基板に背面から力を加えて、シール材
の中に含まれるスペーサーによつて規定される基板間隔
まで押しつぶし、シールの一部に紫外線を照射して２枚
の基板を仮止めする工程と、前記背面からの力を取り去
り、シール材全体に紫外線を照射して、シール材である
紫外線硬化型接着剤のすべてを硬化させる工程とを具備
することを特徴とする液晶表示素子の製造方法。A method for manufacturing a liquid crystal display element in which two electrode substrates are placed facing each other at a fixed interval and a sealing material is used to confine the liquid crystal between them is to screen print a sealing material made of an ultraviolet curable adhesive on one of the substrates. After that, there is a step of overlapping the other substrate, applying force to those substrates from the back, crushing them to the distance defined by the spacer included in the sealing material, and irradiating a part of the seal with ultraviolet rays. and a step of removing the force from the back surface and irradiating the entire sealing material with ultraviolet rays to cure all of the ultraviolet curable adhesive that is the sealing material. A method for manufacturing a liquid crystal display element characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7480586A JPS62231927A (en) | 1986-04-01 | 1986-04-01 | Production of liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7480586A JPS62231927A (en) | 1986-04-01 | 1986-04-01 | Production of liquid crystal display element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62231927A true JPS62231927A (en) | 1987-10-12 |
Family
ID=13557892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7480586A Pending JPS62231927A (en) | 1986-04-01 | 1986-04-01 | Production of liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62231927A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01142532A (en) * | 1987-11-27 | 1989-06-05 | Matsushita Electric Ind Co Ltd | Production of liquid crystal panel |
| JPH0664229U (en) * | 1993-02-19 | 1994-09-09 | 信越エンジニアリング株式会社 | Device for laminating glass substrates for liquid crystal display boards |
| US6210815B1 (en) | 1997-12-17 | 2001-04-03 | Nec Corporation | Organic thin film EL device and method for making the same |
| KR100370921B1 (en) * | 2000-12-07 | 2003-02-05 | 주식회사 엘리아테크 | An Organic Electro-Luminescence Display Panel By Dual Hardening Process And Fabricating Method Thereof |
| KR100553493B1 (en) * | 2002-02-12 | 2006-02-20 | 세이코 엡슨 가부시키가이샤 | Method and device for manufacturing an electrooptic device, electrooptic device, electronic equipment |
-
1986
- 1986-04-01 JP JP7480586A patent/JPS62231927A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01142532A (en) * | 1987-11-27 | 1989-06-05 | Matsushita Electric Ind Co Ltd | Production of liquid crystal panel |
| JPH0664229U (en) * | 1993-02-19 | 1994-09-09 | 信越エンジニアリング株式会社 | Device for laminating glass substrates for liquid crystal display boards |
| US6210815B1 (en) | 1997-12-17 | 2001-04-03 | Nec Corporation | Organic thin film EL device and method for making the same |
| KR100370921B1 (en) * | 2000-12-07 | 2003-02-05 | 주식회사 엘리아테크 | An Organic Electro-Luminescence Display Panel By Dual Hardening Process And Fabricating Method Thereof |
| KR100553493B1 (en) * | 2002-02-12 | 2006-02-20 | 세이코 엡슨 가부시키가이샤 | Method and device for manufacturing an electrooptic device, electrooptic device, electronic equipment |
| US7317281B2 (en) | 2002-02-12 | 2008-01-08 | Seiko Epson Corporation | Method for manufacturing electrooptical device and apparatus for manufacturing the same, electrooptical device and electronic appliances |
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