JPH0281022A - Liquid crystal injecting device - Google Patents
Liquid crystal injecting deviceInfo
- Publication number
- JPH0281022A JPH0281022A JP23434388A JP23434388A JPH0281022A JP H0281022 A JPH0281022 A JP H0281022A JP 23434388 A JP23434388 A JP 23434388A JP 23434388 A JP23434388 A JP 23434388A JP H0281022 A JPH0281022 A JP H0281022A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- roller
- cell
- container
- injecting port
- 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 abstract description 97
- 210000002858 crystal cell Anatomy 0.000 claims abstract description 24
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 239000011261 inert gas Substances 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 210000004027 cell Anatomy 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 10
- 238000011109 contamination Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- -1 that is Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
この発明は、主に液晶表示装置に使用される液晶セルに
液晶を注入する注入装置に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to an injection device for injecting liquid crystal into a liquid crystal cell mainly used in a liquid crystal display device.
（ロ）従来の技術
従来この種の装置においては、真空容器内に真空セルを
設置し、真空容器内を真空にした後、予め液晶を収容し
た容器に液晶セルを浸し、その後不活性ガスを真空容器
内に供給して、内部圧力を復圧し、この圧力によって容
器の液晶を液晶セル内に注入するようにした装置や、繊
維のような液晶を含浸する含浸材料を液晶容器に設置し
、液晶容器内を真空にした後に、その含浸材料を液晶セ
ルの注入口に接触させ、真空容器に不活性ガスを充填し
て内部圧力を復圧させると共に、液晶を液晶容器から含
浸材料を介して液晶セル内に注入する装置が見られる。(B) Conventional technology Conventionally, in this type of device, a vacuum cell is installed in a vacuum container, the inside of the vacuum container is evacuated, and then the liquid crystal cell is immersed in a container containing liquid crystal in advance, and then an inert gas is immersed. A device that supplies liquid crystal into a vacuum container to restore the internal pressure, and uses this pressure to inject the liquid crystal in the container into the liquid crystal cell, and an impregnating material such as fiber that impregnates the liquid crystal is installed in the liquid crystal container. After evacuating the inside of the liquid crystal container, the impregnated material is brought into contact with the injection port of the liquid crystal cell, and the vacuum container is filled with inert gas to restore the internal pressure, and the liquid crystal is transferred from the liquid crystal container through the impregnated material. A device for injecting liquid crystal cells can be seen.
（ハ）発明が解決しようとする課題
しかしながら、前者の装置においては、液晶セルを液晶
容器の液晶に完全に浸すため、液晶がセルの外部にも付
着し、液晶の注入終了後に液晶セルを引き上げた場合、
表面張力により多量の液晶がセルの外部表面に残留する
ことになり、そのため液晶の消費量が増大するという問
題点がある。(c) Problems to be Solved by the Invention However, in the former device, since the liquid crystal cell is completely immersed in the liquid crystal in the liquid crystal container, the liquid crystal also adheres to the outside of the cell, and the liquid crystal cell is pulled up after the injection of liquid crystal is completed. If
There is a problem in that a large amount of liquid crystal remains on the outer surface of the cell due to surface tension, which increases the amount of liquid crystal consumed.
また、後者の装置においては、液晶中に繊惟材料のよう
な含浸材料を浸すため、その材料と液晶とが化学反応を
起こしたり、その材料から不純物が液晶に溶出したり、
混入する危険性がある。In addition, in the latter device, since an impregnating material such as a fiber material is immersed in the liquid crystal, a chemical reaction may occur between the material and the liquid crystal, or impurities may be eluted from the material into the liquid crystal.
There is a risk of contamination.
この発明は、このような事情を琴慮してなされたもので
、液晶材料の消費量を節減すると共に、液晶の汚染を防
止することが可能な液晶注入装置を提供するものである
。The present invention has been made with these circumstances in mind, and it is an object of the present invention to provide a liquid crystal injection device that can reduce the amount of liquid crystal material consumed and prevent contamination of the liquid crystal.
（ニ）課題を解決するための手段
この発明は真空容器内に液晶セルと液晶容器とを設置し
、真空容器を真空にした後、不活性ガスを充填して真空
容器内圧力を復圧し、その圧力によって液晶容器から液
晶セルへ液晶を注入するよう構成した液晶注入装置にお
いて、液晶容器の開口部にローラーを回転可能に設置し
、ローラー下部周面が液晶容器の液晶に浸されると共に
ローラー上部周面が前記開口から露出するように前記ロ
ーラーを配置し、液晶セルを支持してその液晶注入口を
ローラー上部周面上に所定間隔を有して設置する支持具
を備え、かつ、前記ローラーが凹凸状の外周面を有する
ことを特徴とする液晶注入装置である。(d) Means for Solving the Problem This invention installs a liquid crystal cell and a liquid crystal container in a vacuum container, evacuates the vacuum container, and then fills the vacuum container with an inert gas to restore the pressure inside the vacuum container. In a liquid crystal injection device configured to inject liquid crystal from a liquid crystal container into a liquid crystal cell using the pressure, a roller is rotatably installed at the opening of the liquid crystal container, and the lower peripheral surface of the roller is immersed in the liquid crystal in the liquid crystal container, and the roller The roller is arranged so that the upper circumferential surface is exposed from the opening, and the roller is provided with a support for supporting a liquid crystal cell and installing the liquid crystal injection port at a predetermined interval on the upper circumferential surface of the roller, and This liquid crystal injection device is characterized in that the roller has an uneven outer peripheral surface.
なお、ローラーは、球状または置注状であることが好ま
しく、液晶に対して濡れ性の良い材料、つまり、金属や
樹脂で製作されることが望ましい。Note that the roller is preferably spherical or spherical, and is desirably made of a material that has good wettability with liquid crystal, that is, metal or resin.
ローラーの外周面は、平坦面にメツシュ状やストライブ
状の溝又はデインプル状のくぼみを有することが好まし
い。また、ローラーはモーターによって一定速度で回転
される。The outer peripheral surface of the roller preferably has mesh-like or stripe-like grooves or dimple-like depressions on the flat surface. The rollers are also rotated at a constant speed by a motor.
（ホ）作用
真空容器を真空にした後、ローラーを回転さけると、ロ
ーラー下部周面に付着した液晶がローラー上部に運ばれ
、セルの注入口に供給される。その時、不活性ガスを充
填して真空容器内圧力を復圧させると、セル内部の圧力
と真空容器内の圧力との差によって、液晶はローラーを
介して注入口からセル内部に注入される。従って、セル
外部に液晶が付着することがなく、又液晶が池の物質に
よって汚染されることもない。また、ローラーは凹凸状
の外周面を有するので、液晶の付着性か向上する。(e) Operation After evacuating the vacuum container, when the roller is rotated, the liquid crystal attached to the lower circumferential surface of the roller is carried to the upper part of the roller and supplied to the injection port of the cell. At that time, when the pressure inside the vacuum container is restored by filling with an inert gas, the liquid crystal is injected into the cell from the injection port via the roller due to the difference between the pressure inside the cell and the pressure inside the vacuum container. Therefore, the liquid crystal does not adhere to the outside of the cell, and the liquid crystal is not contaminated by pond substances. Further, since the roller has an uneven outer peripheral surface, the adhesion of liquid crystal is improved.
（へ）実施例
以下、図面に示す実施例に基づいて、この発明を詳述す
る。これによって、この発明が限定されるしのではない
。(f) Examples The present invention will now be described in detail based on examples shown in the drawings. This does not limit the invention.
第１図はこの発明の一実施例を示す構成説明図であり、
ｌは真空容器、２．３は真空容器１を真空にするための
メカニカルブースターポンプ及びロータリーポンプ、４
は真空容器１内の圧力を復圧させる不活性ガスのボンベ
、５．６は開閉バルブ、７は液晶セル８を支持して矢印
方向に上下移動させる支持具、８ａは液晶セル８に設け
られた液晶注入口、９は液晶を収容する液晶皿、１０は
液晶皿９の開口部にシャフト１１によって回転可能に設
置されたローラーであり、ローラーＩＯの下部は液晶皿
の液晶に浸されている。FIG. 1 is a configuration explanatory diagram showing one embodiment of the present invention,
l is a vacuum container, 2.3 is a mechanical booster pump and rotary pump for evacuating the vacuum container 1, 4
is an inert gas cylinder for restoring the pressure inside the vacuum container 1, 5.6 is an on-off valve, 7 is a support for supporting the liquid crystal cell 8 and moving it up and down in the direction of the arrow, and 8a is provided on the liquid crystal cell 8. 9 is a liquid crystal dish that accommodates the liquid crystal; 10 is a roller that is rotatably installed by a shaft 11 in the opening of the liquid crystal dish 9; the lower part of the roller IO is immersed in the liquid crystal of the liquid crystal dish; .
第２図は第１図の要部を示す正面図、第３図は第２図の
側面図であり、１２は液晶皿９に収容された液晶、１３
は出力軸がシャフト！■に結合されたモーターである。2 is a front view showing the main parts of FIG. 1, and FIG. 3 is a side view of FIG.
The output shaft is a shaft! ■It is a motor combined with.
なお、この実施列においては、液晶セルの外形寸法を５
ｃｍｘ５ｃｍ（注入口８ａの長さ２ｙ、ｍ）とし、ロー
ラー１０には、直径１０ｘ＊、厚さ３ｘｚのアルミニウ
ム製のローラーを使用している。第４図（ａ）〜第４図
（ｄ）はローラーＩＯの外周面に形成された凹凸形状を
示す説明図であり、同図（ａ）はデインプル状表面、同
図（ｂ）はメツツユ状表面、同図（ｃ）は縦ストライブ
状表面、同図（ｄ）は溝ストライプ状表面をそれぞれ存
するローラー１０を示し、第５図（ａ）〜（ｄ）はそれ
ぞれ第４図（ａ）〜第４図（ｄ）に対応する断面図であ
るが、ローラーＩＯの表面形状は、注入する液晶の種類
や粘度等を考慮して、これらの中から選択される。In addition, in this implementation row, the external dimensions of the liquid crystal cell are 5
cm x 5 cm (the length of the injection port 8a is 2y, m), and the roller 10 is an aluminum roller with a diameter of 10x* and a thickness of 3xz. FIGS. 4(a) to 4(d) are explanatory diagrams showing the uneven shape formed on the outer peripheral surface of the roller IO, in which FIG. 4(a) shows a dimple-like surface and FIG. 4(b) shows a dimple-like surface. FIG. 5(c) shows a roller 10 having a vertical striped surface, FIG. 5(d) shows a grooved striped surface, and FIGS. 5(a) to 5(d) are similar to FIG. 4(a). - This is a cross-sectional view corresponding to FIG. 4(d), and the surface shape of the roller IO is selected from these in consideration of the type and viscosity of the liquid crystal to be injected.
このような構成における動作を説明する。まず、支持具
７に液晶セル８を装着し、真空容器ｌの内部をメカニカ
ルブースターポンプ２及びロータリーポンプ３によって
真空にし、真空度が所定値に達したとき、バルブ５を閉
じる。次に、支持具７を下降させ、注入口８ａとローラ
ーｌＯの上面との距離が０．５〜１．Ｏｚｚ＋こなった
ときに支持具７を停止さ仕る。そして、モーター１３を
駆動してローラーＩＯを回転させる。それによって、液
晶Ｉ２はローラー１０の表面に１〜２ｒｔｔｍの厚さで
付着し、注入口８ａに案内される。そこで、バルブ６を
開き、ボンベ４から不活性ガスを真空容器ｌの内部に導
入すると、ローラー１０によって注入口８ａに案内され
ｆコ液晶１２が、液晶セル８の内部圧力と真空容器１の
内部圧力との差によって液晶セル８の内部に注入される
。なお、ローラーの回転速度は１０ｒｐｍに設定してい
る。このようにして、汚染のない高純度の液晶を、効率
良く注入することができる。The operation in such a configuration will be explained. First, the liquid crystal cell 8 is attached to the support 7, the inside of the vacuum container 1 is evacuated by the mechanical booster pump 2 and the rotary pump 3, and when the degree of vacuum reaches a predetermined value, the valve 5 is closed. Next, the support 7 is lowered so that the distance between the injection port 8a and the upper surface of the roller IO is 0.5 to 1. When Ozz+ is reached, the support 7 is stopped. Then, the motor 13 is driven to rotate the roller IO. Thereby, the liquid crystal I2 adheres to the surface of the roller 10 to a thickness of 1 to 2 rttm, and is guided to the injection port 8a. Then, when the valve 6 is opened and the inert gas is introduced from the cylinder 4 into the vacuum container 1, the liquid crystal 12 is guided to the injection port 8a by the roller 10, and the internal pressure of the liquid crystal cell 8 and the inside of the vacuum container 1 are It is injected into the liquid crystal cell 8 due to the difference in pressure. Note that the rotation speed of the roller is set to 10 rpm. In this way, highly pure liquid crystal without contamination can be efficiently injected.
第６図は、この発明の池の実施例を示す第３図対応図で
あり、この実施例においては、第３図における円筒状の
ローラー１０の代わりに球状ローラー１０ａを使用して
いる。第７図（ａ）〜第７図（ｄ）は球状ローラー１０
ａの表面に形成された凹凸形状を示す説明図であり、同
図（ａ）はデインプル状表面、同図（ｂ）はメツシュ状
表面、同図（ｃ）は縦ストライブ状表面、同図（ｄ）は
構ストライブ状表面をそれぞれ有するローラー１０ａを
示している。ローラー１０ａの表面形状は、注入する液
晶の種類や粘度などに応じて、これらの中から選択され
る。この実施例においてら、前述の実施例と同様の効果
を得ることができる。FIG. 6 is a diagram corresponding to FIG. 3 showing an embodiment of the pond of the present invention, and in this embodiment, a spherical roller 10a is used in place of the cylindrical roller 10 in FIG. 3. FIGS. 7(a) to 7(d) show the spherical roller 10
FIG. 3 is an explanatory diagram showing the uneven shape formed on the surface of the figure a, where (a) is a dimple-like surface, (b) is a mesh-like surface, and (c) is a vertical stripe-like surface; (d) shows rollers 10a each having a structured striped surface. The surface shape of the roller 10a is selected from these depending on the type and viscosity of the liquid crystal to be injected. In this embodiment, the same effects as in the above-mentioned embodiment can be obtained.
また、使用するローラー形状及び寸法は、液晶セルの容
量や形状、注入口の寸法等に対応して適宜決定される。Further, the shape and dimensions of the roller to be used are appropriately determined depending on the capacity and shape of the liquid crystal cell, the dimensions of the injection port, and the like.
（ト）発明の効果
この発明によれば、液晶の消費量が大きく節減されると
共に、液晶が汚染されろことなく液晶セルに能率良く注
入される。(g) Effects of the Invention According to the present invention, the amount of liquid crystal consumed can be greatly reduced, and the liquid crystal can be efficiently injected into the liquid crystal cell without being contaminated.
第１図はこの発明の一実施例を示す構成説明図、第２図
は第１図の要部説明図、第３図は第２図の側面図、第４
図は第３図に示す実施例のローラー外周面を示す説明図
、第５図は第４図の部分断面図、第６図はこの発明の他
の実施例を示す第３図対応図、第７図は第６図に示す実
施例のローラー外周面を示す説明図である。
・・・・・真空容器、
・・メカニカルブースターポンプ、
・・・ロータリーポンプ、 ４・・・・・・ボンベ、
６ ・ バルブ、 ７・・・・・支持具、・液
晶セル、 ８ａ・・・・・注入口１、液晶皿、
ｌＯ・・・ローラー・・・シャフト、
１２・・・・液晶、・・・・・モーター
真３図
（ａ）
（Ｃ）
（ｂ）
（ｄ）Fig. 1 is an explanatory diagram of the configuration showing one embodiment of the present invention, Fig. 2 is an explanatory diagram of the main part of Fig. 1, Fig. 3 is a side view of Fig. 2,
5 is a partial sectional view of FIG. 4, and FIG. 6 is a view corresponding to FIG. 3 showing another embodiment of the present invention. FIG. 7 is an explanatory view showing the outer peripheral surface of the roller of the embodiment shown in FIG. 6. ...Vacuum container, ...Mechanical booster pump, ...Rotary pump, 4...Cylinder,
6. Valve, 7.. Support, Liquid crystal cell, 8a.. Inlet 1, Liquid crystal dish,
lO...roller...shaft,
12...Liquid crystal,...Motor true 3 (a) (C) (b) (d)
Claims (1)
容器を真空にした後、不活性ガスを充填して真空容器内
圧力を復圧し、その圧力によって液晶容器から液晶セル
へ液晶を注入するよう構成した液晶注入装置において、 液晶容器の開口部にローラーを回転可能に設置し、ロー
ラー下部周面が液晶容器の液晶に浸されると共にローラ
ー上部周面が前記開口から露出するように前記ローラー
を配置し、液晶セルを支持してその液晶注入口をローラ
ー上部周面上に所定間隔を有して設置する支持具を備え
、かつ、前記ローラーが凹凸状の外周面を有することを
特徴とする液晶注入装置。[Claims] 1. After installing a liquid crystal cell and a liquid crystal container in a vacuum container and evacuating the vacuum container, the pressure inside the vacuum container is restored by filling with inert gas, and the liquid crystal container is In a liquid crystal injection device configured to inject liquid crystal into a liquid crystal cell, a roller is rotatably installed in an opening of a liquid crystal container, and the lower circumferential surface of the roller is immersed in the liquid crystal of the liquid crystal container, and the upper circumferential surface of the roller is immersed in the liquid crystal of the liquid crystal container. The roller is arranged so as to be exposed from the opening, and the roller is provided with a support for supporting the liquid crystal cell and installing the liquid crystal inlet at a predetermined interval on the upper circumferential surface of the roller, and the roller has an uneven shape. A liquid crystal injection device characterized by having an outer peripheral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23434388A JPH0281022A (en) | 1988-09-19 | 1988-09-19 | Liquid crystal injecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23434388A JPH0281022A (en) | 1988-09-19 | 1988-09-19 | Liquid crystal injecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0281022A true JPH0281022A (en) | 1990-03-22 |
Family
ID=16969505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23434388A Pending JPH0281022A (en) | 1988-09-19 | 1988-09-19 | Liquid crystal injecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0281022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0458321A2 (en) * | 1990-05-23 | 1991-11-27 | Canon Kabushiki Kaisha | Process and apparatus for producing liquid crystal panel |
| US5461502A (en) * | 1994-04-06 | 1995-10-24 | Beldex Corporation | Method and apparatus for feeding liquid crystal with a rotatable support means |
-
1988
- 1988-09-19 JP JP23434388A patent/JPH0281022A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0458321A2 (en) * | 1990-05-23 | 1991-11-27 | Canon Kabushiki Kaisha | Process and apparatus for producing liquid crystal panel |
| US5461502A (en) * | 1994-04-06 | 1995-10-24 | Beldex Corporation | Method and apparatus for feeding liquid crystal with a rotatable support means |
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