JPH0495924A - Manufacture of liquid crystal display element - Google Patents
Manufacture of liquid crystal display elementInfo
- Publication number
- JPH0495924A JPH0495924A JP20958190A JP20958190A JPH0495924A JP H0495924 A JPH0495924 A JP H0495924A JP 20958190 A JP20958190 A JP 20958190A JP 20958190 A JP20958190 A JP 20958190A JP H0495924 A JPH0495924 A JP H0495924A
- Authority
- JP
- Japan
- Prior art keywords
- transparent substrate
- mask layer
- blanket
- liquid crystal
- crystal display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 238000007639 printing Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims description 11
- 238000007645 offset printing Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 8
- 230000003068 static effect Effects 0.000 abstract description 8
- 239000000428 dust Substances 0.000 abstract description 6
- 239000000470 constituent Substances 0.000 description 2
- 210000002858 crystal cell Anatomy 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Abstract
Description
本発明は、液晶表示素子の製造方法、特にオフセット印
刷法により透明基板上にマスク層を形成する工程に関す
るものである。The present invention relates to a method of manufacturing a liquid crystal display element, and particularly to a process of forming a mask layer on a transparent substrate by an offset printing method.
液晶セル構成材の透明基板上にオフセット印刷法により
マスク層を形成するには、第２図に示すように印刷機２
１上の刷版２２の上面にインキローラーによってインキ
を載せ、ブランケット２３を介して印刷機１上の透明基
板２４にインキを転写する。In order to form a mask layer on a transparent substrate of a liquid crystal cell constituent material by an offset printing method, a printing machine 2 is used as shown in FIG.
Ink is placed on the upper surface of the printing plate 22 on the printing press 1 by an ink roller, and the ink is transferred to the transparent substrate 24 on the printing press 1 via the blanket 23.
このような方法で透明基板上にマスク層を形成すると、
印刷に際しブランケット２３と透明基板２４に静電気が
発生するため、ブランケット２３及び透明基板２４に塵
埃などが付着し易くなり、不良発生の一因となる。また
、静電気の発生した透明基板同士を平行に近接して収納
した場合、基板同士が引合ったり、あるいは反発し合う
ようになり、基板に反りが生じて使用不能となる。
本発明の目的は、印刷時の静電気による不良要因を除去
できる液晶表示素子の製造方法を提供することにある。When a mask layer is formed on a transparent substrate using this method,
Since static electricity is generated on the blanket 23 and the transparent substrate 24 during printing, dust and the like tend to adhere to the blanket 23 and the transparent substrate 24, which becomes a cause of defects. Furthermore, when transparent substrates with static electricity generated are stored in parallel and close to each other, the substrates attract each other or repel each other, causing the substrates to warp and become unusable. SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing a liquid crystal display element that can eliminate defects caused by static electricity during printing.
本発明は、オフセット印刷法により透明基板上にマスク
層を形成する際、イオン化エアを吹付けながら印刷する
ことを特徴とするものであり、ブランケット及び透明基
板に発生した静電気がイオン化エアの吹付けにより中和
されるようになり、塵埃などの付着、反りの発生を防止
することができる。The present invention is characterized in that when forming a mask layer on a transparent substrate by an offset printing method, printing is performed while spraying ionized air. This makes it possible to prevent the adhesion of dust and the occurrence of warping.
以下、本発明を図面に示す実施例に基づいて詳細に説明
する。
第１図は本発明の一実施例を示すもので、インキローラ
ーにより印刷機１上の刷版２にインキを載せ、ブランケ
ット３が印刷機１上の刷版２と透明基板４の間を移動し
て透明基板４上にインキを転写し、マスク層を形成する
。
この場合、ブランケット３が透明基板４上にある時、エ
アガン５よりイオン化されたエアをブランケット３及び
透明基板４に向けて鉛直方向または斜め上方から吹付け
る。
このようにイオン化エアが吹付けられている中で転写（
印刷）を行うと、印刷時にブランケット３及び透明基板
４に発生した静電気がイオン化エアによって中和され、
塵埃吸引力が消滅する。つまり、清浄なマスク層付き透
明基板が得られる。
また、マスク層が形成された透明基板を平行に近接して
収納した場合にも、静電気が除去されているため、互い
に吸引したり、反発したりすることがなくなり、透明基
板の反りが防止される。
上記マスク層付き透明基板を構成材として液晶セルを構
成すると、高品質の液晶表示素子が得られる。Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings. FIG. 1 shows an embodiment of the present invention, in which ink is placed on a printing plate 2 on a printing press 1 by an ink roller, and a blanket 3 is moved between the printing plate 2 on the printing press 1 and a transparent substrate 4. The ink is transferred onto the transparent substrate 4 to form a mask layer. In this case, when the blanket 3 is placed on the transparent substrate 4, ionized air is blown from the air gun 5 toward the blanket 3 and the transparent substrate 4 from vertically or diagonally above. The transfer (
When printing), the static electricity generated on the blanket 3 and transparent substrate 4 during printing is neutralized by ionized air,
Dust suction power disappears. In other words, a clean transparent substrate with a mask layer can be obtained. Furthermore, even when transparent substrates with mask layers formed on them are stored close to each other in parallel, static electricity is removed, so they will not attract or repel each other, and the transparent substrates will be prevented from warping. Ru. When a liquid crystal cell is constructed using the transparent substrate with a mask layer as a constituent material, a high quality liquid crystal display element can be obtained.
以上のように本発明によれば、マスク層形成の印刷に際
し、イオン化エアを吹付けるため、透明基板及びブラン
ケットに発生した静電気を中和することができ、塵埃の
付着を防止できる。また、マスク層形成後の透明基板を
収納した場合、静電気による吸引、反発がなくなり、透
明基板の反りを防止することができる。従って、液晶表
示素子の製造に際し歩留りの向上が図れる。As described above, according to the present invention, since ionized air is sprayed during printing to form a mask layer, static electricity generated on the transparent substrate and the blanket can be neutralized, and the adhesion of dust can be prevented. Further, when the transparent substrate after the mask layer is formed is stored, attraction and repulsion due to static electricity are eliminated, and warping of the transparent substrate can be prevented. Therefore, the yield can be improved when manufacturing liquid crystal display elements.
第１図は本発明に係る液晶表示素子の製造方法の一実施
例を示す透明基板マスク層形成工程説明図、第２図は従
来例を示す透明基板マスク層形成工程説明図である。
１・・・印刷機、２・・・刷版、３・・・ブランケット
、４・・・透明基板、５・・・エアガン。FIG. 1 is an explanatory diagram of a process for forming a transparent substrate mask layer showing an embodiment of the method for manufacturing a liquid crystal display element according to the present invention, and FIG. 2 is an explanatory diagram of a process for forming a transparent substrate mask layer showing a conventional example. 1... Printing machine, 2... Printing plate, 3... Blanket, 4... Transparent substrate, 5... Air gun.
Claims (1)
る際、イオン化エアを吹付けながら印刷することを特徴
とする液晶表示素子の製造方法。A method for manufacturing a liquid crystal display element, which comprises printing while spraying ionized air when forming a mask layer on a transparent substrate using an offset printing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20958190A JPH0495924A (en) | 1990-08-07 | 1990-08-07 | Manufacture of liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20958190A JPH0495924A (en) | 1990-08-07 | 1990-08-07 | Manufacture of liquid crystal display element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0495924A true JPH0495924A (en) | 1992-03-27 |
Family
ID=16575204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20958190A Pending JPH0495924A (en) | 1990-08-07 | 1990-08-07 | Manufacture of liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0495924A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019181111A1 (en) * | 2018-03-23 | 2019-09-26 | 株式会社Ｓｃｒｅｅｎホールディングス | Printing device and printing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62172323A (en) * | 1986-01-27 | 1987-07-29 | Fujitsu Ltd | Rubbing method for liquid crystal display plate |
| JPS6326627A (en) * | 1986-07-19 | 1988-02-04 | Alps Electric Co Ltd | Production of liquid crystal display element |
-
1990
- 1990-08-07 JP JP20958190A patent/JPH0495924A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62172323A (en) * | 1986-01-27 | 1987-07-29 | Fujitsu Ltd | Rubbing method for liquid crystal display plate |
| JPS6326627A (en) * | 1986-07-19 | 1988-02-04 | Alps Electric Co Ltd | Production of liquid crystal display element |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019181111A1 (en) * | 2018-03-23 | 2019-09-26 | 株式会社Ｓｃｒｅｅｎホールディングス | Printing device and printing method |
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