JPS6353518A - Method for injecting liquid crystal - Google Patents
Method for injecting liquid crystalInfo
- Publication number
- JPS6353518A JPS6353518A JP19871486A JP19871486A JPS6353518A JP S6353518 A JPS6353518 A JP S6353518A JP 19871486 A JP19871486 A JP 19871486A JP 19871486 A JP19871486 A JP 19871486A JP S6353518 A JPS6353518 A JP S6353518A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- porous body
- pan
- cell
- crystal material
- 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 112
- 238000000034 method Methods 0.000 title claims description 17
- 239000000463 material Substances 0.000 claims abstract description 29
- 210000002858 crystal cell Anatomy 0.000 claims abstract description 21
- 229920002678 cellulose Polymers 0.000 claims abstract description 5
- 239000001913 cellulose Substances 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 101150006573 PAN1 gene Proteins 0.000 abstract description 9
- 210000004027 cell Anatomy 0.000 abstract description 5
- 239000011261 inert gas Substances 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000008429 bread Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005373 porous glass Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
本発明は、液晶表示装置の製造方法に関するものであり
、特にセル内に液晶材を注入する工程に係るものである
。
Ｋ従来の技術】
従来の液晶の注入方法には第５図に示すようなものがあ
り、先ず、第５図（Ａ＞に示すように液晶パン１１を縦
位置に保持して液晶溜部１１ａに液晶材２を入れておき
、フロア部１１ｂの所定の位置に二枚のガラス基板の周
辺の三辺をを封止し一辺に注入口が形成しである液晶セ
ル６をカセット７などで保持して近接させ、これら全て
を真空容器（図示せず）中で排気する。 次に、前記液
晶セル６を前記フロア部１１ｂに当接させた侵に第５図
（Ｂ）に示すように前記液晶パン１１を略９０度回転さ
せると液晶溜部１１ａの液晶材２はフロア部１１ｂに移
動して液晶セル６の前記注入口を浸すものとなる。 こ
のときに前記真空容器中に窒素などの不活性ガスを注入
すると気圧差により真空の液晶セル６の内部に液晶２が
注入されるものとなり、注入終了後には再度前記液晶パ
ン１１は略９０度回転されて第５図（Ｃ）に示すように
縦位置とされ、前記注入口の周辺に付着している液晶材
２の液切を行った後に前記真空容器から取出され液晶の
注入工程は完了する。The present invention relates to a method for manufacturing a liquid crystal display device, and particularly to a process of injecting a liquid crystal material into a cell. K. Prior Art There is a conventional liquid crystal injection method as shown in FIG. 5. First, the liquid crystal pan 11 is held in a vertical position as shown in FIG. The liquid crystal material 2 is placed in the cassette 7, and the three sides around the two glass substrates are sealed at a predetermined position on the floor part 11b, and an injection port is formed on one side.The liquid crystal cell 6 is held in a cassette 7 or the like. Then, all of them are evacuated in a vacuum container (not shown).Next, the liquid crystal cell 6 is brought into contact with the floor part 11b, and the liquid crystal cell 6 is brought into contact with the floor part 11b. When the liquid crystal pan 11 is rotated approximately 90 degrees, the liquid crystal material 2 in the liquid crystal reservoir section 11a moves to the floor section 11b and immerses the injection port of the liquid crystal cell 6. At this time, nitrogen or the like is introduced into the vacuum container. When the inert gas is injected, the liquid crystal 2 is injected into the vacuum liquid crystal cell 6 due to the pressure difference, and after the injection is completed, the liquid crystal pan 11 is rotated approximately 90 degrees again as shown in FIG. 5(C). After the liquid crystal material 2 adhering to the periphery of the injection port is removed from the vacuum vessel, the liquid crystal injection process is completed.
ここで液晶表示装置の原価配分を分析して見ると素材費
中で最も高価なものは液晶材であり、この使用量が液晶
表示装置の製造原価を定めるといっても過言でない、し
かしながら前記した従来の液晶の注入方法においては如
何に液切を行っても前記注入口の設けられている辺に付
着して持去られ無効となる液晶材の聞は前記液晶セルの
内部に注入される有効の吊と同じ、或いはそれ以上に多
く、この理由により液晶表示装置の製造原価が不必要に
高価なものになると云う問題点を生ずるものであった。
に問題点を解決するための手段】
本発明は上記した従来の液晶の注入法に生ずる問題点を
解決するための具体的手段として、液晶溜部とフロア部
とから成る液晶パンを用い、前記液晶溜部にある液晶材
を略９０度回転して前記フロア部に当接させた液晶セル
に液晶材を真空注入する方法において、前記液晶パンの
前記フロア部にはセルローズ等により形成された多孔質
体が設けられ、該多孔質体を介して前記フロア部と前記
液晶セルとを当接させることを特徴とする液晶の注入方
法を提供することで、液晶セルに付着して持去られて失
われる液晶材を格段に少なくして、前記従来の不必要に
製造原価が高くなる問題点を解決するものである。
Ｋ実 施 例】
つぎに、本発明を図に示す一実施例に基づいて詳細に説
明する。
尚、理解を容易にするために従来例と同じ部分には同じ
符号を付して説明し、重複する部分については一部その
説明を省略する。
第１図に符号１で示すものは液晶パンであり、該液晶パ
ン１は従来例のものと同様に液晶溜部１ａとフロア部１
ｂとで構成されるものであるが、そのフロア部１ｂには
本発明により、例えばスポンジ状のセルローズなどによ
る多孔質体３がホルダ１Ｃ、ストッパ４など適宜な手段
により取付けられている。
第２図に示すものは、本発明による液晶の注入方法を工
程の順に示すもので、先ず、第２図（Ａ＞に示すように
縦位置に置かれた液晶パン１のフロア部１ｂに設けられ
た多孔質体３にカセッ１〜７などに保持された液晶セル
６が近接され、真空容器内（図示せず）にて排気が行な
われる。 次いで、第２図（Ｂ）に示したように前記液
晶セル６は前記多孔質体３に当接され、前記液晶パン１
は略９０度回転されて横位置とされ、これにより液晶材
２は前記多孔質体３に吸収され、液晶セル６の注入口に
達し、このときに前記真空容器内に不活性ガスを注入す
ることで、気圧差を生じさせて液晶セル６内に液晶材２
が注入される。 その掛に再び第２図（Ｃ）に示すよう
に前記液晶パン１は縦位置とされるが、このときに本発
明により設けられた多孔質体３により、重力により前記
多孔質体３内に吸収されている液晶材２が液晶溜部１ａ
に戻ると共に毛細管現象により液晶セル６の注入口が設
けられた辺に付着する液晶材２も吸着し、従来例の様に
無駄となる液晶材２の母を著しく減するものとなる。
第３図に示すものは、本発明による多孔質体３の別の実
施例であり、前記で説明した液晶パン１を横位置とした
ときに、この多孔質体３の全面に可能なかぎりに迅速に
前記液晶材２を行渡らせるものであり、該多孔貿対３の
背面側、即ち、液晶パン１と接する側には縦方向に複数
の満３ａが形成されていて、これにより前記液晶パン１
を縦位置から横位置に回転したときには、この溝３ａを
前記液晶材２が流れ、全面に迅速に行渡るものとなる。
第４図に示すものは本発明の更に別の実施例であり、実
際の実施に当たっては前記多孔質体３が汚れなどにより
、しばしば交換されることを考虞して、前記実施例では
多孔質体３に設けた溝を液晶パン１側に設けたものであ
り、該液晶パン１の液晶溜部１ａとフロア部１ｂとが共
有する面には複数の液晶誘導溝１ｄが縦方向に設けられ
ているものであり、その作用効果は前記実施例と同様で
あるので説明を省略する。 また、この液晶誘導溝１ｄ
に液晶誘導棒５を嵌入しておくことで、前記液晶誘導ｔ
Ｍ １ ｄと液晶誘導棒５との間に生ずる毛細管現象に
より一層にその効果を高めることが可能である。
尚、実施にあたり前記した多孔質体３、溝３ａ。
液晶誘導溝１ｄ、あるいは液晶誘導棒５等を必要な部分
に限定して設けるなどは自由であることは云うまでしな
い。
Ｋ発明の効果】
以上に説明したように本発明により、液晶の注入方法を
液晶パンのフロア部にセルローズ等により形成された多
孔質体が設け、該多孔質体を介して前記フロア部と液晶
セルとを当接させる様にしたことで、前記液晶セルの注
入口が設けられた辺に付着し無駄となる液晶材を前記多
孔質体の毛細管現象で吸収して格段に少なくすることで
、液晶表示装置の製造原価を著しく低限し、コストダウ
ンに優れた効果を奏するものである。If we analyze the cost distribution of LCD devices, the most expensive material is the liquid crystal material, and it is no exaggeration to say that the amount of this material used determines the manufacturing cost of the LCD device.However, as mentioned above, In the conventional liquid crystal injection method, no matter how much liquid is drained, the liquid crystal material adheres to the side where the injection port is provided and is taken away and becomes invalid. For this reason, the manufacturing cost of the liquid crystal display device becomes unnecessarily high. [Means for Solving the Problems] The present invention is a specific means for solving the problems that occur in the conventional liquid crystal injection method described above. In the method of vacuum injecting the liquid crystal material into the liquid crystal cell which rotates the liquid crystal material in the liquid crystal reservoir part approximately 90 degrees and brings it into contact with the floor part, the floor part of the liquid crystal pan has porous holes formed of cellulose or the like. By providing a liquid crystal injection method characterized in that a porous body is provided and the floor portion and the liquid crystal cell are brought into contact with each other through the porous body, it is possible to prevent the liquid crystal from adhering to the liquid crystal cell and being carried away. The liquid crystal material lost is significantly reduced, thereby solving the problem of unnecessarily high manufacturing costs in the prior art. K Embodiment Next, the present invention will be described in detail based on an embodiment shown in the drawings. In order to facilitate understanding, parts that are the same as those in the conventional example will be described with the same reference numerals, and descriptions of some overlapping parts will be omitted. 1 is a liquid crystal pan, and the liquid crystal pan 1 has a liquid crystal reservoir part 1a and a floor part 1 as in the conventional example.
According to the present invention, a porous body 3 made of, for example, sponge-like cellulose is attached to the floor portion 1b by suitable means such as a holder 1C and a stopper 4. FIG. 2 shows the liquid crystal injection method according to the present invention in the order of steps. First, as shown in FIG. A liquid crystal cell 6 held in cassettes 1 to 7 or the like is brought close to the porous body 3 and evacuated in a vacuum container (not shown).Next, as shown in FIG. 2(B), The liquid crystal cell 6 is brought into contact with the porous body 3, and the liquid crystal pan 1
is rotated approximately 90 degrees to a horizontal position, whereby the liquid crystal material 2 is absorbed into the porous body 3 and reaches the injection port of the liquid crystal cell 6, at which time an inert gas is injected into the vacuum container. This creates a pressure difference and causes the liquid crystal material 2 to flow inside the liquid crystal cell 6.
is injected. Meanwhile, as shown in FIG. 2(C) again, the liquid crystal pan 1 is placed in a vertical position. The absorbed liquid crystal material 2 is in the liquid crystal reservoir part 1a.
At the same time, the liquid crystal material 2 adhering to the side of the liquid crystal cell 6 where the injection port is provided is also adsorbed by capillary action, thereby significantly reducing the amount of liquid crystal material 2 that is wasted as in the conventional example. What is shown in FIG. 3 is another embodiment of the porous body 3 according to the present invention. The liquid crystal material 2 is quickly distributed, and a plurality of holes 3a are formed in the vertical direction on the back side of the porous glass plate 3, that is, on the side in contact with the liquid crystal pan 1. Bread 1
When the liquid crystal material 2 is rotated from the vertical position to the horizontal position, the liquid crystal material 2 flows through the groove 3a and quickly spreads over the entire surface. The one shown in FIG. 4 is yet another embodiment of the present invention, and in consideration of the fact that the porous body 3 is often replaced due to dirt etc. in actual implementation, the porous body 3 is not used in the above embodiment. The grooves provided in the body 3 are provided on the side of the liquid crystal pan 1, and a plurality of liquid crystal guiding grooves 1d are provided in the vertical direction on the surface shared by the liquid crystal reservoir portion 1a and the floor portion 1b of the liquid crystal pan 1. The operation and effect thereof are the same as those of the embodiment described above, so a description thereof will be omitted. In addition, this liquid crystal guiding groove 1d
By fitting the liquid crystal guide rod 5 into the liquid crystal guide t,
The effect can be further enhanced by the capillary phenomenon that occurs between M 1 d and the liquid crystal guiding rod 5. In addition, the porous body 3 and the grooves 3a described above in the implementation. It goes without saying that it is free to provide the liquid crystal guiding groove 1d or the liquid crystal guiding rod 5, etc., only in the necessary areas. [Effects of the Invention] As explained above, according to the present invention, a porous body made of cellulose or the like is provided in the floor portion of a liquid crystal pan, and the liquid crystal is injected into the floor portion and the liquid crystal via the porous body. By bringing the cell into contact with the liquid crystal cell, the amount of wasted liquid crystal material that adheres to the side where the injection port of the liquid crystal cell is provided is absorbed by the capillary action of the porous body, thereby significantly reducing the amount of liquid crystal material that is wasted. The manufacturing cost of the liquid crystal display device can be significantly reduced, resulting in an excellent cost reduction effect.
第１図は本発明に係る液晶の注入方法の一実施例を一部
を切欠いて示す斜視図、第２図は同じ実施例での液晶の
注入方法を工程の順に示す説明図、第３図は本発明の別
の実施例の要部を示す斜視図、第４図は同じく本発明の
更に別の実施例を示す斜視図、第５図は従来例を工程の
順に示す説明図である。
１・・・・・・液晶パン
１ａ・・・液晶溜部 １ｂ・・・フロア部１Ｃ・・
・ホルダ １ｄ・・・液晶誘導溝２・・・・・・
液晶材
３・・・・・・多孔質体
３ａ・・・溝
４・・・・・・ストッパ ５・・・・・・液晶誘導
棒６・・・・・・液晶セル ７・・・・・・カセッ
ト特許出願人 スタンレー電気株式会社、、１・−・
−，１
代 理 人 秋 元 輝 雄
５７１．ＩＡ第１図Fig. 1 is a partially cutaway perspective view showing an embodiment of the liquid crystal injection method according to the present invention, Fig. 2 is an explanatory diagram showing the liquid crystal injection method in the same embodiment in the order of steps, and Fig. 3 4 is a perspective view showing a main part of another embodiment of the present invention, FIG. 4 is a perspective view showing still another embodiment of the present invention, and FIG. 5 is an explanatory diagram showing a conventional example in order of steps. 1...Liquid crystal pan 1a...Liquid crystal reservoir part 1b...Floor part 1C...
・Holder 1d...Liquid crystal guide groove 2...
Liquid crystal material 3...Porous body 3a...Groove 4...Stopper 5...Liquid crystal guide rod 6...Liquid crystal cell 7...・Cassette patent applicant Stanley Electric Co., Ltd., 1...
-, 1 Representative Teruo Akimoto 571. IA Figure 1
Claims (4)
前記液晶溜部にある液晶材を略９０度回転して前記フロ
ア部に当接させた液晶セルに液晶材を真空注入する方法
において、前記液晶パンの前記フロア部にはセルローズ
等により形成された多孔質体が設けられ、該多孔質体を
介して前記フロア部と前記液晶セルとを当接させること
を特徴とする液晶の注入方法。(1) Using a liquid crystal pan consisting of a liquid crystal reservoir and a floor,
In the method of vacuum injecting the liquid crystal material into the liquid crystal cell which rotates the liquid crystal material in the liquid crystal reservoir part by approximately 90 degrees and brings it into contact with the floor part, the floor part of the liquid crystal pan is formed of cellulose or the like. A method for injecting liquid crystal, characterized in that a porous body is provided, and the floor portion and the liquid crystal cell are brought into contact with each other through the porous body.
方向に沿う複数の溝が形成されていることを特徴とする
特許請求の範囲（１）項記載の液晶の注入方法。(2) The liquid crystal injection method according to claim (1), wherein a plurality of grooves are formed on the back side of the porous body along the vertical direction of the liquid crystal pan.
共有する面には液晶誘導溝が形成されていることを特徴
とする特許請求の範囲（１）項記載の液晶の注入方法。(3) The liquid crystal injection method according to claim (1), wherein a liquid crystal guide groove is formed on a surface of the liquid crystal pan that is shared by the liquid crystal reservoir and the floor.
ことを特徴とする特許請求の範囲（１）項記載の液晶の
注入方法。(4) The liquid crystal injection method according to claim (1), wherein a liquid crystal guiding rod is fitted into the liquid crystal guiding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19871486A JPS6353518A (en) | 1986-08-25 | 1986-08-25 | Method for injecting liquid crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19871486A JPS6353518A (en) | 1986-08-25 | 1986-08-25 | Method for injecting liquid crystal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6353518A true JPS6353518A (en) | 1988-03-07 |
| JPH0312298B2 JPH0312298B2 (en) | 1991-02-19 |
Family
ID=16395785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19871486A Granted JPS6353518A (en) | 1986-08-25 | 1986-08-25 | Method for injecting liquid crystal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6353518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5359442A (en) * | 1991-11-22 | 1994-10-25 | Rohm Co., Ltd. | Apparatus and method for introducing liquid crystal into liquid crystal cells using suction and retention means |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS599629A (en) * | 1982-07-08 | 1984-01-19 | Stanley Electric Co Ltd | Method and device for implanting liquid crystal |
| JPS6041017A (en) * | 1983-08-03 | 1985-03-04 | Sharp Corp | Manufacture of liquid crystal display element |
-
1986
- 1986-08-25 JP JP19871486A patent/JPS6353518A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS599629A (en) * | 1982-07-08 | 1984-01-19 | Stanley Electric Co Ltd | Method and device for implanting liquid crystal |
| JPS6041017A (en) * | 1983-08-03 | 1985-03-04 | Sharp Corp | Manufacture of liquid crystal display element |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5359442A (en) * | 1991-11-22 | 1994-10-25 | Rohm Co., Ltd. | Apparatus and method for introducing liquid crystal into liquid crystal cells using suction and retention means |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0312298B2 (en) | 1991-02-19 |
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