JPS6396630A - Preparation of liquid crystal display element - Google Patents
Preparation of liquid crystal display elementInfo
- Publication number
- JPS6396630A JPS6396630A JP24242686A JP24242686A JPS6396630A JP S6396630 A JPS6396630 A JP S6396630A JP 24242686 A JP24242686 A JP 24242686A JP 24242686 A JP24242686 A JP 24242686A JP S6396630 A JPS6396630 A JP S6396630A
- Authority
- JP
- Japan
- Prior art keywords
- ice
- liquid crystal
- dust
- films
- blasting
- 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 15
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 229920001721 polyimide Polymers 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000009719 polyimide resin Substances 0.000 abstract description 2
- 238000005422 blasting Methods 0.000 abstract 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000005361 soda-lime glass Substances 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、液晶表示素子の製法に関し、特に液晶の配向
処理に関する。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 an alignment treatment for liquid crystal.
従来の技術
従来の液晶の配向処理の主流は、ガラス基板等の上にポ
リ・イミド等から成る配向膜を形成し、その後ナイロン
やポリ・エチレン・テレフタレートから成る繊維で前記
間膜を一定方向に摩擦する方法である〔例えば、佐々木
昭夫編「液晶エレクトロニクスの基礎と応用」〕。Conventional technology The mainstream of conventional liquid crystal alignment processing is to form an alignment film made of polyimide or the like on a glass substrate, etc., and then align the interlayer in a certain direction with fibers made of nylon or polyethylene terephthalate. It is a friction method [for example, "Fundamentals and Applications of Liquid Crystal Electronics" edited by Akio Sasaki].
発明が解決しようとする問題点
ポリ・イミド膜等の絶縁性配向膜をナイロンやポリ・エ
チレン・テレフタレート等から成る絶縁性繊維で摩擦す
るとき、ややもすると静電気が発生し、従ってごみが基
板に付着しやすい。Problems to be Solved by the Invention When an insulating alignment film such as a polyimide film is rubbed with an insulating fiber made of nylon or polyethylene terephthalate, static electricity is generated and dust is deposited on the substrate. Easy to adhere.
また、前述の摩擦のとき、繊維くずが発生しがちである
。Also, during the above-mentioned friction, fiber waste tends to be generated.
これらの現象は液晶表示素子の製造の際の歩留りを大き
く損なうものである。These phenomena greatly impair the yield during the manufacture of liquid crystal display elements.
問題点を解決するための手段
本発明は前述のような問題点を解決するために、液晶層
を挟持する各基板のラビングをアイス・プラスチング法
でなすような液晶表示素子の製法を提供するものである
。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a method for manufacturing a liquid crystal display element in which rubbing of each substrate sandwiching a liquid crystal layer is performed by an ice plasting method. It is something.
アイス・プラスチング法とは、氷片を加工物の表面に噴
射して前記表面を加工する方法である。The ice plasting method is a method of spraying ice chips onto the surface of a workpiece to process the surface.
作用
前述のようなアイス・プラスチング法は、静電気が全く
発生しないこと、更にはごみが発生しても木片で除去さ
れることが理解される。また、このラビング法は、幾分
なりとも表面の清浄効果があることが判った。It is understood that the ice-plasting method as described above does not generate any static electricity, and even if dust is generated, it is removed with wood chips. It was also found that this rubbing method has some effect of cleaning the surface.
実施例
以下に本発明の液晶表示素子の製法の一実施例について
、図面を詳細に説明する。EXAMPLE Below, an example of the method for manufacturing a liquid crystal display element of the present invention will be described in detail with reference to the drawings.
適当な透明導電性薄膜を具備するソーダ・ガラス基板を
入手した。この上に適当に希釈したポリ・イミド・レジ
ンをスピナーで塗布、その後、加熱、重合させて、配向
膜を得た。A soda glass substrate with a suitable transparent conductive thin film was obtained. An appropriately diluted polyimide resin was applied onto this using a spinner, and then heated and polymerized to obtain an alignment film.
つぎに、氷を細かく粉砕し、吸引型噴射機でもって、前
記基板に氷片を噴射する。Next, the ice is finely crushed and the ice pieces are sprayed onto the substrate using a suction type sprayer.
図は吸引型噴射機の構成断面図である。同図において、
１は圧縮空気、または高圧窒素、２はブラスト・ノズル
、３は排気用ダクト、４はキャビネット、５は基板、６
はテーブル、７は氷片、８はホッパーである。The figure is a sectional view of the structure of a suction type injection machine. In the same figure,
1 is compressed air or high pressure nitrogen, 2 is a blast nozzle, 3 is an exhaust duct, 4 is a cabinet, 5 is a board, 6
is a table, 7 is a piece of ice, and 8 is a hopper.
氷片の噴射方向の基板の主表面に平行な成分は、前記基
板に対して一定であるようにした。前記噴射方向の基板
に対する角度は３０°〜４０゛が望ましいものだった。The component parallel to the main surface of the substrate in the injection direction of the ice pieces was made constant with respect to the substrate. The angle of the spraying direction with respect to the substrate is preferably 30° to 40°.
また、噴射速度は１０ ａｍ ／ ｓ〜１０ｍ／Ｓが望
ましかった。Moreover, the injection speed was preferably 10 am/s to 10 m/s.
つぎに水洗、乾燥させ、さらに、よく知られた方法で液
晶表示素子を作製した。Next, it was washed with water and dried, and further, a liquid crystal display element was produced by a well-known method.
表示特性を測ったところ、優れた特性が得られた。また
、顕微鏡等での検査の結果、ごみが極端に少なく、従っ
て作製の歩留りは大幅に向上した。When the display characteristics were measured, excellent characteristics were obtained. Furthermore, as a result of inspection using a microscope, etc., there was extremely little dust, and therefore the production yield was significantly improved.
発明の効果
本発明は液晶表示素子の作製歩留りを著しく改善するも
のであり、産業上に価値は大なるものがある。Effects of the Invention The present invention significantly improves the production yield of liquid crystal display elements, and has great industrial value.
図は吸引型噴射機の構成断面図である。
１・・・・・・圧縮空気、または高圧窒素、２・・・・
・・ブラスト・ノズル、３・・・・・・排気用ダクト、
４・・・・・・キャビネット、５・・・・・・基板、６
・・・・・・テーブル、７・・・・・・氷片、８・・・
・・・ホッパー。The figure is a sectional view of the structure of a suction type injection machine. 1... Compressed air or high pressure nitrogen, 2...
...Blast nozzle, 3...Exhaust duct,
4... Cabinet, 5... Board, 6
...Table, 7...Ice pieces, 8...
···hopper.
Claims (1)
ング法でなすことを特徴とする液晶表示素子の製法。A method for manufacturing a liquid crystal display element, characterized in that each substrate sandwiching a liquid crystal layer is rubbed by an ice plasting method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24242686A JPH0690378B2 (en) | 1986-10-13 | 1986-10-13 | Liquid crystal display element manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24242686A JPH0690378B2 (en) | 1986-10-13 | 1986-10-13 | Liquid crystal display element manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6396630A true JPS6396630A (en) | 1988-04-27 |
| JPH0690378B2 JPH0690378B2 (en) | 1994-11-14 |
Family
ID=17088930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24242686A Expired - Fee Related JPH0690378B2 (en) | 1986-10-13 | 1986-10-13 | Liquid crystal display element manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0690378B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5114748A (en) * | 1989-12-08 | 1992-05-19 | Taiyo Sanso Co. Ltd. | Method of preparing or rubbing a substrate to be used in a lcd device by spraying it with uniformly sized droplets or frozen water |
| US6001277A (en) * | 1995-05-26 | 1999-12-14 | Hitachi Chemical Company, Ltd. | Liquid-crystal alignment film |
| US7218367B2 (en) | 2000-04-03 | 2007-05-15 | Konica Corporation | Optical compensation sheet and liquid crystal display |
-
1986
- 1986-10-13 JP JP24242686A patent/JPH0690378B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5114748A (en) * | 1989-12-08 | 1992-05-19 | Taiyo Sanso Co. Ltd. | Method of preparing or rubbing a substrate to be used in a lcd device by spraying it with uniformly sized droplets or frozen water |
| US6001277A (en) * | 1995-05-26 | 1999-12-14 | Hitachi Chemical Company, Ltd. | Liquid-crystal alignment film |
| US7218367B2 (en) | 2000-04-03 | 2007-05-15 | Konica Corporation | Optical compensation sheet and liquid crystal display |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0690378B2 (en) | 1994-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |