JPH0690378B2 - Liquid crystal display element manufacturing method - Google Patents
Liquid crystal display element manufacturing methodInfo
- Publication number
- JPH0690378B2 JPH0690378B2 JP24242686A JP24242686A JPH0690378B2 JP H0690378 B2 JPH0690378 B2 JP H0690378B2 JP 24242686 A JP24242686 A JP 24242686A JP 24242686 A JP24242686 A JP 24242686A JP H0690378 B2 JPH0690378 B2 JP H0690378B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- display element
- element manufacturing
- substrate
- 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.)
- Expired - Fee Related
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 10
- 239000010408 film Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 230000003068 static effect Effects 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
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000009719 polyimide resin 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
Landscapes
- Liquid Crystal (AREA)
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。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a liquid crystal display device, and more particularly to a liquid crystal alignment treatment.
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向膜
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
This is a method in which an alignment film made of imide or the like is formed, and then the film is rubbed in a certain direction with a fiber made of nylon or poly-ethylene-terephthalate [for example, "Basics 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 poly-imide film is rubbed with an insulating fiber made of nylon, poly-ethylene-terephthalate, or the like, static electricity is generated a little, and thus dust is generated on the substrate. Easy to attach.
また、前述の摩擦のとき、繊維くずが発生しがちであ
る。Also, when the above-mentioned friction occurs, fiber waste tends to be generated.
これらの現象は液晶表示素子の製造の際に歩留りを大き
く損なうものである。These phenomena greatly impair the yield in the production 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・ブラスチング法
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 of manufacturing a liquid crystal display device in which rubbing of each substrate sandwiching a liquid crystal layer is performed by an ice blasting method. Is.
アイス・ブラスチング法とは、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 blasting method is a method in which ice pieces are jetted 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氷片で除去さ
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。Action It is understood that the ice plasting method as described above does not generate static electricity at all, and even if dust is generated, it is removed by ice pieces. It was also found that this rubbing method has a surface cleaning effect to some extent.
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 An example of a method for producing a liquid crystal display device of the present invention will be described in detail below 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 having a suitable transparent conductive thin film was obtained. An appropriately diluted poly-imide resin was applied onto this with 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 ice pieces are sprayed onto the substrate by using a suction 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 cross-sectional view of the structure of the suction type injector. In the 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 substrate,
6 is a table, 7 is an ice piece, 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。ま
た、噴射速度は10cm/s〜10m/sが望ましかった。The component parallel to the main surface of the substrate in the direction in which the ice pieces were jetted was set to be constant with respect to the substrate. The angle of the jetting direction with respect to the substrate is preferably 30 ° to 40 °. In addition, it was desired that the injection speed be 10 cm / 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 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. In addition, as a result of inspection with a microscope or the like, the amount of dust was extremely small, and thus 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、産業上の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 devices, 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 cross-sectional view of the structure of the suction type injector. 1 ... Compressed air or high-pressure nitrogen, 2 ... Blast nozzle, 3 ... Exhaust duct, 4 ... Cabinet, 5 ...
... substrate, 6 ... table, 7 ... ice chips, 8 ... hopper.
フロントページの続き (72)発明者 立道 敏夫 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 大谷 光弘 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (56)参考文献 特開 昭54−21860（ＪＰ，Ａ) 特開 昭59−58417（ＪＰ，Ａ) 特開 昭61−138231（ＪＰ，Ａ)Continuation of the front page (72) Inventor Toshio Tachidō 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. Documents JP 54-21860 (JP, A) JP 59-58417 (JP, A) JP 61-138231 (JP, A)
Claims (1)
ス・プラスチング法でなすことを特徴とする液晶表示素
子の製法。1. A method of manufacturing a liquid crystal display device, wherein the rubbing of each substrate sandwiching a liquid crystal layer is performed 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 JPS6396630A (en) | 1988-04-27 |
| JPH0690378B2 true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03180814A (en) * | 1989-12-08 | 1991-08-06 | Taiyo Sanso Co Ltd | Orientation treatment of liquid crystal display element |
| JPH08328005A (en) * | 1995-05-26 | 1996-12-13 | Hitachi Chem Co Ltd | Liquid crystal oriented film, treatment of liquid crystal oriented film, liquid crystal holding substrate, liquid crystal display element, production of liquid crystal display element and material for liquid crystal oriented film |
| TW522260B (en) | 2000-04-03 | 2003-03-01 | Konishiroku Photo Ind | Optical compensation sheet and liquid crystal display |
-
1986
- 1986-10-13 JP JP24242686A patent/JPH0690378B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6396630A (en) | 1988-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |