JPH0651256A - Device for discharging liquid crystal - Google Patents

Device for discharging liquid crystal

Info

Publication number
JPH0651256A
JPH0651256A JP4203333A JP20333392A JPH0651256A JP H0651256 A JPH0651256 A JP H0651256A JP 4203333 A JP4203333 A JP 4203333A JP 20333392 A JP20333392 A JP 20333392A JP H0651256 A JPH0651256 A JP H0651256A
Authority
JP
Japan
Prior art keywords
liquid crystal
shaft
sleeve
discharge device
pump
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
Application number
JP4203333A
Other languages
Japanese (ja)
Inventor
Koji Sonoda
孝司 園田
Teruo Maruyama
照雄 丸山
Haruo Tada
治夫 夛田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4203333A priority Critical patent/JPH0651256A/en
Publication of JPH0651256A publication Critical patent/JPH0651256A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1341—Filling or closing of cells
    • G02F1/13415—Drop filling process

Landscapes

  • Liquid Crystal (AREA)

Abstract

PURPOSE:To provide a liquid crystal discharging device which discharges a predetermined amount of liquid crystal by means of rotation of a shaft and applies it to the inner surface of a panel substrate, as do liquid crystal dropping devices used in a liquid crystal injection process involved in the assembling process of e.g. a liquid crystal display panel. CONSTITUTION:While a shaft 4 is being stopped, liquid crystal is not dropped from an end of a nozzle 3. When the shaft 4 is rotated via a rotary mechanism, the liquid crystal 7 present in the clearance between the shaft 4 and the inner surface of a sleeve 5 is pushed down toward the end of the nozzle 3 due to a spiral groove and can be dropped. The amount of dropping of the liquid crystal 7 can freely be varied by varying the number of revolutions of the shaft 4, or the form or angle of the groove 101.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、例えば液晶表示パネル
の組立工程において、基板内面に液晶を塗布させる液晶
吐出装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal discharge device for applying liquid crystal to the inner surface of a substrate in the process of assembling a liquid crystal display panel.

【０００２】[0002]

【従来の技術】液晶パネルを作るための液晶製造プロセ
スにおいて、互いに貼り合わされるべき２枚の基板のギ
ャップ面に液晶を封入する技術は、画質の均一性等液晶
表示パネルの性能を左右する重要な役割を担っている。
そのために液晶をむらなくパネル内に封入する方法が液
晶製造技術に必要である。2. Description of the Related Art In a liquid crystal manufacturing process for manufacturing a liquid crystal panel, the technique of encapsulating liquid crystal in the gap surface of two substrates to be bonded together is important for controlling the performance of the liquid crystal display panel such as uniformity of image quality. Play a different role.
Therefore, the liquid crystal manufacturing technique requires a method of uniformly filling the liquid crystal in the panel.

【０００３】以下に具体的な例として従来の液晶滴下装
置について説明する。図７は、従来の液晶滴下装置の基
本構成を示すものである。図７において、１は基板、２
は液晶、３はノズルである。２００はピストン、２０１
はシリンダ、２０２は加圧機構で前記加圧機構の作動に
より、ノズル先端から液晶を滴下させる。A conventional liquid crystal dropping device will be described below as a specific example. FIG. 7 shows a basic configuration of a conventional liquid crystal dropping device. In FIG. 7, 1 is a substrate, 2
Is a liquid crystal, and 3 is a nozzle. 200 is a piston, 201
Is a cylinder, and 202 is a pressurizing mechanism, and the liquid crystal is dropped from the tip of the nozzle by the operation of the pressurizing mechanism.

【０００４】以上のように構成された液晶滴下装置につ
いて、以下その動作について説明する。まず、先端にノ
ズルの付いた滴下装置を基板上面に配置する。シリンダ
内には液晶が充填されている。ノズルの先端が滴下位置
にある時、加圧機構を作動させることによりシリンダが
移動し、ノズル先端から液晶が滴下される。ここで、加
圧機構はネジ送り機構が用いられている。滴下された
後、基板あるいはノズルはＸＹテーブル等の移動機構に
よって、次の滴下ポイントまで移動し同様の動作を繰り
返す。このようにして、基板に均一に液晶を滴下後、２
枚の基板を貼り合わせることにより、分離していた液滴
は互いに連結し、基板間のギャップは液晶が均一に充満
した状態となる。The operation of the liquid crystal dropping apparatus constructed as above will be described below. First, a dropping device having a nozzle at the tip is placed on the upper surface of the substrate. Liquid crystal is filled in the cylinder. When the tip of the nozzle is at the dropping position, the cylinder is moved by operating the pressurizing mechanism, and the liquid crystal is dropped from the tip of the nozzle. Here, a screw feed mechanism is used as the pressure mechanism. After the dropping, the substrate or the nozzle is moved to the next dropping point by a moving mechanism such as an XY table and the same operation is repeated. In this way, after the liquid crystal is evenly dropped on the substrate, 2
By sticking the substrates together, the separated droplets are connected to each other, and the gap between the substrates is filled with the liquid crystal uniformly.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら上記の従
来の構成では、ボールネジの分解能や機械的なバックラ
シなど、加圧機構の分解能に限界があり、滴下量にばら
つきが生じるので、正確な流量制御が困難という問題点
を有していた。この結果、画質ムラといった問題点が生
じていた。However, in the above-mentioned conventional structure, there is a limit in the resolution of the pressurizing mechanism such as the resolution of the ball screw and the mechanical backlash, and the dropping amount varies, so that accurate flow rate control is possible. It had the problem of difficulty. As a result, problems such as image quality unevenness have occurred.

【０００６】本発明は、上記従来の問題点を解決するも
ので、液晶滴下装置において、吐出精度の向上を可能に
し、信頼性を向上させる液晶滴下装置を提供することを
目的とする。The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a liquid crystal dropping device capable of improving ejection accuracy and improving reliability.

【０００７】[0007]

【課題を解決するための手段】この目的を達成するため
に本発明の液晶滴下装置は、次の構成を有している。In order to achieve this object, the liquid crystal dropping apparatus of the present invention has the following constitution.

【０００８】すなわち請求項１において、軸を収納する
スリーブと、前記軸と前記スリーブの間に設けられた軸
受と、前記軸と前記スリーブに相対的な回転を与える駆
動手段と、前記軸の表面あるいは前記スリーブの内面に
溝を形成して、前記軸とスリーブの間に流体圧送部を設
け、前記流体圧送部に流動状態の液晶を供給する流入孔
及び吐出孔より液晶吐出ポンプを構成し、前記液晶吐出
ポンプとパネル基板の相対位置を規定するために、前記
ポンプもしくは前記パネルのいずれかに設けられた移動
機構を設けた構成を有している。That is, according to claim 1, a sleeve for accommodating the shaft, a bearing provided between the shaft and the sleeve, a drive means for relatively rotating the shaft and the sleeve, and a surface of the shaft. Alternatively, a groove is formed on the inner surface of the sleeve, a fluid pressure feed unit is provided between the shaft and the sleeve, and a liquid crystal discharge pump is configured by an inflow hole and a discharge hole for supplying liquid crystal in a fluid state to the fluid pressure feed unit, In order to define the relative position of the liquid crystal discharge pump and the panel substrate, a moving mechanism provided in either the pump or the panel is provided.

【０００９】請求項２は、請求項１記載の液晶吐出装置
において、相対位置を規定する移動機構がＸＹステージ
である構成を有している。According to a second aspect of the present invention, in the liquid crystal discharge device according to the first aspect, the moving mechanism that defines the relative position is an XY stage.

【００１０】請求項３は、請求項１記載の液晶吐出装置
において、前記液晶ビーズが混入した構成を有してい
る。According to a third aspect of the present invention, in the liquid crystal discharge device according to the first aspect, the liquid crystal beads are mixed.

【００１１】請求項４は、請求項１記載の液晶吐出装置
において、前記流体圧送部に前記流入側と前記流出側を
結ぶ循環経路を形成し、かつ、この循環経路を開閉する
手段を設けた構成を有している。According to a fourth aspect of the present invention, in the liquid crystal discharge device according to the first aspect, the fluid pumping section is provided with a circulation path connecting the inflow side and the outflow side, and means for opening and closing the circulation path is provided. Have a configuration.

【００１２】請求項５は、請求項１記載の液晶吐出装置
において、前記液晶吐出ポンプを複数個組み合わせた構
成を有している。According to a fifth aspect of the present invention, in the liquid crystal discharge device according to the first aspect, a plurality of the liquid crystal discharge pumps are combined.

【００１３】請求項６は、請求項１記載の液晶吐出装置
において、前記流動状態の液晶の温度を検出しながら、
前記駆動手段の回転数を制御する構成を有している。According to a sixth aspect of the present invention, in the liquid crystal discharge device according to the first aspect, while detecting the temperature of the liquid crystal in the flowing state,
It has the structure which controls the rotation speed of the said drive means.

【００１４】請求項７は、請求項１記載の液晶吐出装置
において、前記軸受と前記圧送部の間に液晶への不純物
侵入を遮断するシール手段を設けた構成を有している。According to a seventh aspect of the present invention, in the liquid crystal discharge device according to the first aspect, a seal means is provided between the bearing and the pumping section to block intrusion of impurities into the liquid crystal.

【００１５】請求項８は、請求項１記載の液晶吐出装置
において、前記シール手段が圧縮気体である構成を有し
ている。An eighth aspect of the present invention is the liquid crystal discharge device according to the first aspect, wherein the sealing means is a compressed gas.

【００１６】[0016]

【作用】この構成により、回転による軸とスリーブの相
対移動によって、輸送流体に円周方向速度を与えること
により、液晶を攪拌すると共に前記液晶を定量かつ微小
量吐出することができる。また、回転数を変化させるこ
とによって、ノズルからの流出量を所定の量に制御する
ことも可能である。With this configuration, the relative movement of the shaft and the sleeve due to the rotation gives a circumferential velocity to the transport fluid, whereby the liquid crystal can be stirred and the liquid crystal can be discharged quantitatively and minutely. It is also possible to control the outflow amount from the nozzle to a predetermined amount by changing the rotation speed.

【００１７】[0017]

【実施例】【Example】

（実施例１）以下本発明の一実施例について、図面を参
照しながら説明する。(Embodiment 1) An embodiment of the present invention will be described below with reference to the drawings.

【００１８】図１において１は基板で、ＸＹテーブルに
よって吐出されるべき位置に位置決めされる。２は吐出
される液晶である。３はノズルで前記ノズルから液晶２
が吐出される。４は軸で、らせん溝１０１を有してい
る。５はスリーブで、６はモータであり、軸４の他端と
連結されており、前記モータ６を介して軸４が回転す
る。７は液晶、８は液晶容器、９は液晶を装置内に注入
するための配管で、前記液晶容器８にためられた液晶７
は前記配管９を通って、溝１０１を有した軸４とスリー
ブ５の内面との隙間に注入される。ここで、１０，１１
は軸受、１２はハウジング、１３はパッキン、１４はカ
バーである。また１５，１６は支持台である。In FIG. 1, reference numeral 1 denotes a substrate, which is positioned at a position to be ejected by an XY table. 2 is a liquid crystal to be ejected. 3 is a nozzle, and the liquid crystal 2 is from the nozzle.
Is discharged. Reference numeral 4 denotes a shaft, which has a spiral groove 101. Reference numeral 5 is a sleeve, 6 is a motor, which is connected to the other end of the shaft 4, and the shaft 4 rotates via the motor 6. 7 is a liquid crystal, 8 is a liquid crystal container, 9 is a pipe for injecting the liquid crystal into the device, and the liquid crystal 7 is stored in the liquid crystal container 8.
Is injected into the gap between the shaft 4 having the groove 101 and the inner surface of the sleeve 5 through the pipe 9. Where 10, 11
Is a bearing, 12 is a housing, 13 is a packing, and 14 is a cover. Further, 15 and 16 are support bases.

【００１９】ここで図２（ａ）は、軸とスリーブ間の拡
大図を表し、図２（ｂ）はスリーブに溝を形成した場合
の拡大図である。Here, FIG. 2A shows an enlarged view between the shaft and the sleeve, and FIG. 2B is an enlarged view when a groove is formed in the sleeve.

【００２０】以上のように構成された液晶吐出装置にお
いて、その動作を説明する。図１において、軸が回転し
ない状態の場合は、ノズル先端からは液晶は吐出されな
い状態にある。次にモータを介して軸を回転させた場
合、軸とスリーブ間の流体圧送部により液晶はノズル先
端方向に送られ、液晶が吐出される。ここで、軸の回転
数、あるいは溝の形状、角度を変えることによって、液
晶の吐出量を任意に変えることができる。The operation of the liquid crystal discharge device constructed as described above will be described. In FIG. 1, when the shaft does not rotate, liquid crystal is not ejected from the nozzle tip. Next, when the shaft is rotated via the motor, the liquid crystal is sent toward the tip of the nozzle by the fluid pressure feeding section between the shaft and the sleeve, and the liquid crystal is ejected. Here, the discharge amount of the liquid crystal can be arbitrarily changed by changing the rotational speed of the shaft or the shape and angle of the groove.

【００２１】以上のように本実施例によれば、軸と前記
軸を収納するスリーブと回転駆動機構から構成され、前
記軸あるいはスリーブに溝を有し、前記軸の回転によ
り、前記軸と前記スリーブの溝を有した内面とを相対移
動させることにより液晶を攪拌しながら滴下することが
できる。ここで、流体を圧送するらせん溝は、数ミクロ
ン〜数十ミクロンの深さであり、図２（ａ），（ｂ）に
示すように、軸あるいはスリーブ内面のいずれに溝を形
成してもよい。As described above, according to the present embodiment, the shaft, the sleeve for accommodating the shaft, and the rotation driving mechanism are formed, and the shaft or the sleeve has a groove. By relatively moving the inner surface of the sleeve having the groove, the liquid crystal can be dropped while stirring. Here, the spiral groove for pumping the fluid has a depth of several microns to several tens of microns, and as shown in FIGS. 2 (a) and 2 (b), the spiral groove may be formed on either the shaft or the inner surface of the sleeve. Good.

【００２２】ここで、液晶をパネル基板に均一に塗布す
るために、パネル基板と液晶吐出ポンプの相対位置を順
次変えていく必要がある。本実施例１においては、前記
ＸＹテーブルによりパネル基板と液晶吐出ポンプの相対
位置を順次変えていくことにより、液晶をパネル基板に
均一に塗布する。Here, in order to uniformly apply the liquid crystal to the panel substrate, it is necessary to sequentially change the relative positions of the panel substrate and the liquid crystal discharge pump. In the first embodiment, the liquid crystal is uniformly applied to the panel substrate by sequentially changing the relative positions of the panel substrate and the liquid crystal discharge pump by the XY table.

【００２３】以上のように、本実施例によれば、前記液
晶吐出ポンプとＸＹテーブルから構成され、前記液晶吐
出ポンプとパネル基板の被液晶塗布面をＸＹテーブルに
より相対移動させることにより、液晶を攪拌しながらパ
ネル基板に塗布することができる。As described above, according to the present embodiment, the liquid crystal discharge pump and the XY table are constituted, and the liquid crystal coated surface of the liquid crystal discharge pump and the panel substrate is relatively moved by the XY table, so that the liquid crystal is discharged. It can be applied to the panel substrate while stirring.

【００２４】（実施例２）以下本発明の第２の実施例に
ついて、図面を参照しながら説明する。(Second Embodiment) A second embodiment of the present invention will be described below with reference to the drawings.

【００２５】図３における構成は図１及び図２と同様で
あり、前記図１，図２の構成と異なるのは、循環経路１
７及び、流量開閉手段であるバルブ１８をスリーブに設
けた点である。The configuration in FIG. 3 is the same as that in FIGS. 1 and 2, and the difference from the configurations in FIGS. 1 and 2 is that the circulation path 1
7 and a valve 18, which is a flow rate opening / closing means, is provided on the sleeve.

【００２６】以上のように構成された液晶吐出装置にお
いてその動作を説明する。まず、回転機構を介して、軸
を回転させる。この時、前記バルブ１８を閉じた状態に
しておくと、前記図１，図２の場合と同様に滴下が行な
われる。ここで、回転中にバルブを開いた場合、スリー
ブ下部の液晶は循環経路１７を通って上部に循環される
ため、吐出は行なわれない。すなわち、バルブの開閉に
よって液晶の吐出が制御される。The operation of the liquid crystal discharge device configured as described above will be described. First, the shaft is rotated via the rotating mechanism. At this time, if the valve 18 is closed, dripping is performed as in the case of FIGS. 1 and 2. Here, when the valve is opened during the rotation, the liquid crystal in the lower part of the sleeve is circulated to the upper part through the circulation path 17, and therefore the liquid is not discharged. That is, the liquid crystal ejection is controlled by opening and closing the valve.

【００２７】以上のように本実施例によれば、軸と前記
軸を収納するスリーブと回転駆動機構から構成され、前
記スリーブあるいは軸に溝を有し、前記軸の回転によ
り、前記軸と前記スリーブの溝を有した内面とを相対移
動させることにより液晶を攪拌しながら吐出すると共
に、バルブのＯＮ／ＯＦＦによって、吐出を制御するこ
とができる。As described above, according to this embodiment, the shaft, the sleeve for housing the shaft, and the rotation driving mechanism are formed, and the sleeve or the shaft has a groove, and the shaft and the shaft are rotated by the rotation of the shaft. By relatively moving the inner surface having the groove of the sleeve, the liquid crystal can be discharged while stirring, and the discharge can be controlled by turning the valve ON / OFF.

【００２８】なお、第２の実施例において循環経路１７
及びバルブ１８をスリーブに設けたとしたが、循環用経
路１７は液晶を流すチューブあるいは管、及び、バルブ
１８は流量コントロール装置としてもよい。In the second embodiment, the circulation path 17
Although the valve 18 and the valve 18 are provided on the sleeve, the circulation path 17 may be a tube or tube through which liquid crystal flows, and the valve 18 may be a flow rate control device.

【００２９】（実施例３）以下本発明の第３の実施例に
ついて、図面を参照しながら説明する。(Embodiment 3) A third embodiment of the present invention will be described below with reference to the drawings.

【００３０】図４における構成は図１及び図２と同様で
あり、前記図１，図２の構成と異なるのは、前記液晶吐
出ポンプを複数個組み合わせた点である。The structure in FIG. 4 is the same as that in FIGS. 1 and 2, and the difference from the structures in FIGS. 1 and 2 is that a plurality of the liquid crystal discharge pumps are combined.

【００３１】以上のように本実施例によれば、前記液晶
吐出ポンプを複数個組み合わせることにより、液晶の塗
布を短時間で行なうことができる。 （実施例４）以下本発明の第４の実施例について、図面
を参照しながら説明する。As described above, according to this embodiment, the liquid crystal can be applied in a short time by combining a plurality of the liquid crystal discharge pumps. (Embodiment 4) Hereinafter, a fourth embodiment of the present invention will be described with reference to the drawings.

【００３２】図５における構成は図１及び図２と同様で
あり、前記図１，図２の構成と異なるのは、液晶の温度
を検出する素子と回転数制御手段を設けた点である。The structure in FIG. 5 is the same as that in FIGS. 1 and 2, and the difference from the structures in FIGS. 1 and 2 is that an element for detecting the temperature of the liquid crystal and a rotation speed control means are provided.

【００３３】以上のように構成された液晶吐出装置にお
いて、図５を用いてその動作を説明する。The operation of the liquid crystal discharge device configured as described above will be described with reference to FIG.

【００３４】まず、液晶吐出ポンプの基本的な動作は、
前記実施例１の場合と同様である。ここで、液晶の粘度
は温度により変化するため、同一回転数では吐出量も変
わってくる。そのため、温度変化に関係なく一定の液晶
を吐出する必要がある。すなわち、流体圧送部内に存在
する液晶の温度を、熱電対等の温度検出素子で計測す
る。次に前記温度変化の情報を回転数制御手段にフィー
ドバックさせ、温度変化による粘度の変化が生じても回
転数を変化させることにより、一定の吐出量を与える。
ここで図５（ｂ）は、前記制御方法のブロック線図を示
したものである。First, the basic operation of the liquid crystal discharge pump is as follows.
This is similar to the case of the first embodiment. Here, since the viscosity of the liquid crystal changes depending on the temperature, the ejection amount also changes at the same rotation speed. Therefore, it is necessary to eject a certain amount of liquid crystal regardless of the temperature change. That is, the temperature of the liquid crystal present in the fluid pumping section is measured by a temperature detecting element such as a thermocouple. Next, the temperature change information is fed back to the rotation speed control means, and even if the viscosity changes due to the temperature change, the rotation speed is changed to give a constant discharge amount.
Here, FIG. 5B shows a block diagram of the control method.

【００３５】以上のように本実施例によれば、液晶の温
度を検出する素子と回転数制御手段を設けることによ
り、一定の液晶吐出を行なうことができる。As described above, according to the present embodiment, by providing the element for detecting the temperature of the liquid crystal and the rotation speed control means, it is possible to perform the constant liquid crystal discharge.

【００３６】（実施例５）以下本発明の第５の実施例に
ついて、図面を参照しながら説明する。(Embodiment 5) A fifth embodiment of the present invention will be described below with reference to the drawings.

【００３７】図６における構成は図１及び図２と同様で
あり、前記図１，図２の構成と異なるのは、前記軸受と
前記圧送部の間に液晶への不純物侵入を遮断するシール
手段を設けた点である。The configuration in FIG. 6 is the same as that in FIGS. 1 and 2, and is different from the configurations in FIGS. 1 and 2 in that a sealing means is provided between the bearing and the pressure-feeding section for blocking the intrusion of impurities into the liquid crystal. That is the point.

【００３８】以上のように構成された液晶吐出装置にお
いて、図６を用いてその動作を説明する。図６は、実施
例５におけるシール部分の拡大図である。The operation of the liquid crystal discharge device configured as described above will be described with reference to FIG. FIG. 6 is an enlarged view of the seal portion in the fifth embodiment.

【００３９】まず、液晶吐出ポンプの基本的な動作は、
前記実施例１の場合と同様である。ここで、流体圧送部
に流入する液晶と軸受の間にシール手段として、ここで
は圧縮気体であるＮ2ガスを流し、液晶への不純物侵入
を遮断している。First, the basic operation of the liquid crystal discharge pump is as follows.
This is similar to the case of the first embodiment. Here, N 2 gas, which is a compressed gas here, is caused to flow between the liquid crystal flowing into the fluid pressure-feeding portion and the bearing as a sealing means to block the intrusion of impurities into the liquid crystal.

【００４０】以上のように本実施例によれば、前記軸受
と前記圧送部の間に液晶への不純物侵入を遮断するシー
ル手段を設けることにより、不純物混入のない液晶吐出
を行なうことができる。As described above, according to the present embodiment, by providing the sealing means between the bearing and the pressure-feeding section for blocking the intrusion of impurities into the liquid crystal, it is possible to discharge the liquid crystal without mixing the impurities.

【００４１】[0041]

【発明の効果】以上のように、本発明は、軸を収納する
スリーブと、前記軸と前記スリーブの間に設けられた軸
受と、前記軸と前記スリーブに相対的な回転を与える駆
動手段と、前記軸の表面あるいは前記スリーブの内面に
溝を形成して、前記軸とスリーブの間に流体圧送部を設
け、前記流体圧送部に流動状態の液晶を供給する流入孔
及び吐出孔より液晶吐出ポンプを構成し、前記液晶吐出
ポンプとパネル基板の相対位置を規定するために、前記
ポンプもしくは前記パネルのいずれかに設けられた移動
機構より構成され、回転により前記軸あるいは前記スリ
ーブの溝部とのそれぞれの対面側が相対移動することに
より液晶の吐出が可能で、かつ、例えば微小粉体を含ん
だ液晶でも吐出させることができる優れた液晶吐出装置
を実現できるものである。As described above, according to the present invention, the sleeve for accommodating the shaft, the bearing provided between the shaft and the sleeve, and the drive means for relatively rotating the shaft and the sleeve are provided. , A groove is formed on the surface of the shaft or the inner surface of the sleeve to provide a fluid pumping section between the shaft and the sleeve, and liquid crystal is discharged from an inflow hole and a discharge hole for supplying liquid crystal in a fluid state to the fluid pumping section. In order to define a relative position between the liquid crystal discharge pump and the panel substrate, which constitutes a pump, it is constituted by a moving mechanism provided on either the pump or the panel, and by rotation, it is connected to the groove portion of the shaft or the sleeve. It is possible to realize an excellent liquid crystal ejecting device capable of ejecting liquid crystal by relatively moving the facing surfaces and ejecting liquid crystal containing fine powder, for example. A.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の第１の実施例における液晶吐出装置の
概略図FIG. 1 is a schematic diagram of a liquid crystal discharge device according to a first embodiment of the present invention.

【図２】本発明の第１の実施例における液晶吐出装置の
軸とスリーブの拡大図FIG. 2 is an enlarged view of a shaft and a sleeve of the liquid crystal discharge device according to the first embodiment of the present invention.

【図３】本発明の第２の実施例における液晶吐出装置の
動作説明図FIG. 3 is an operation explanatory diagram of a liquid crystal discharge device according to a second embodiment of the present invention.

【図４】本発明の第３の実施例における液晶吐出装置の
概略図FIG. 4 is a schematic view of a liquid crystal discharge device according to a third embodiment of the present invention.

【図５】本発明の第４の実施例における液晶吐出装置の
概略図FIG. 5 is a schematic view of a liquid crystal discharge device according to a fourth embodiment of the present invention.

【図６】本発明の第５の実施例における液晶吐出装置の
概略図FIG. 6 is a schematic view of a liquid crystal discharge device according to a fifth embodiment of the present invention.

【図７】従来の液晶滴下装置の概略図FIG. 7 is a schematic view of a conventional liquid crystal dropping device.

【符号の説明】[Explanation of symbols]

１ 基板 ２ 液滴 ３ ノズル ４ 軸 ５ スリーブ ６ モータ ７ 液晶 ８ 液晶容器 ９ 配管 １０，１１ 軸受 １２ ハウジング １３ パッキン １４ カバー １５，１６ 支持台 １７ 循環経路 １８ ＯＮ／ＯＦＦバルブ １０１，１０２，１０３ 溝 ２００ ピストン ２０１ シリンダ ２０２ 加圧機構 ３０１ ＸＹテーブル ４０１ 温度検出素子（熱電体） ４０２ 回転数制御手段 ５０１ Ｎ2シール手段 ５０２ Ｎ2ガス供給管 ５０３ Ｎ2ガス排出管1 Substrate 2 Droplet 3 Nozzle 4 Axis 5 Sleeve 6 Motor 7 Liquid Crystal 8 Liquid Crystal Container 9 Piping 10, 11 Bearing 12 Housing 13 Packing 14 Cover 15, 16 Support 17 Circulation Path 18 ON / OFF Valve 101, 102, 103 Groove 200 Piston 201 Cylinder 202 Pressurizing mechanism 301 XY table 401 Temperature detecting element (thermoelectric body) 402 Rotation speed control means 501 N 2 sealing means 502 N 2 gas supply pipe 503 N 2 gas exhaust pipe

Claims (8)

【特許請求の範囲】[Claims] 【請求項１】 軸を収納するスリーブと、前記軸と前記
スリーブの間に設けられた軸受と、前記軸と前記スリー
ブに相対的な回転を与える駆動手段と、前記軸の表面あ
るいは前記スリーブの内面に溝を形成して、前記軸とス
リーブの間に流体圧送部を設け、前記流体圧送部に流動
状態の液晶を供給する流入孔及び吐出孔より液晶吐出ポ
ンプを構成し、前記液晶吐出ポンプとパネル基板の相対
位置を規定するために、前記ポンプもしくは前記パネル
のいずれかに設けられた移動機構より構成される液晶吐
出装置。1. A sleeve for accommodating a shaft, a bearing provided between the shaft and the sleeve, drive means for relatively rotating the shaft and the sleeve, and a surface of the shaft or the sleeve. A groove is formed on the inner surface, a fluid pressure feed unit is provided between the shaft and the sleeve, and a liquid crystal discharge pump is configured by an inflow hole and a discharge hole for supplying liquid crystal in a fluid state to the fluid pressure feed unit. And a liquid crystal discharge device configured by a moving mechanism provided on either the pump or the panel to define the relative position of the panel substrate. 【請求項２】 相対位置を規定する移動機構がＸＹステ
ージである請求項１記載の液晶吐出装置。2. The liquid crystal discharge device according to claim 1, wherein the moving mechanism that defines the relative position is an XY stage. 【請求項３】 前記液晶にビーズが混入した構成である
請求項１記載の液晶吐出装置。3. The liquid crystal discharge device according to claim 1, wherein the liquid crystal has beads mixed therein. 【請求項４】 前記流体圧送部において、前記流入側と
前記流出側を結ぶ循環経路を形成し、かつ、この循環経
路を開閉する手段を設けた構成である請求項１記載の液
晶吐出装置。4. The liquid crystal discharge device according to claim 1, wherein the fluid pumping unit is provided with a circulation path connecting the inflow side and the outflow side, and means for opening and closing the circulation path. 【請求項５】 前記液晶吐出ポンプを複数個組み合わせ
た構成である請求項１記載の液晶吐出装置。5. The liquid crystal ejecting apparatus according to claim 1, wherein the liquid crystal ejecting pump has a configuration in which a plurality of the liquid crystal ejecting pumps are combined. 【請求項６】 前記流動状態の液晶の温度を検出しなが
ら、前記駆動手段の回転数を制御する構成である請求項
１記載の液晶吐出装置。6. The liquid crystal ejecting apparatus according to claim 1, wherein the rotation number of the drive means is controlled while detecting the temperature of the liquid crystal in the flowing state. 【請求項７】 前記軸受と前記圧送部の間に液晶への不
純物侵入を遮断するシール手段をもつことを特徴とする
請求項１記載の液晶吐出装置。7. The liquid crystal ejecting apparatus according to claim 1, further comprising a sealing device between the bearing and the pressure feeding unit, the sealing device blocking intrusion of impurities into the liquid crystal. 【請求項８】 前記シール手段が圧縮気体である請求項
１記載の液晶吐出装置。8. The liquid crystal discharge device according to claim 1, wherein the sealing means is a compressed gas.
JP4203333A 1992-07-30 1992-07-30 Device for discharging liquid crystal Pending JPH0651256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4203333A JPH0651256A (en) 1992-07-30 1992-07-30 Device for discharging liquid crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4203333A JPH0651256A (en) 1992-07-30 1992-07-30 Device for discharging liquid crystal

Publications (1)

Publication Number Publication Date
JPH0651256A true JPH0651256A (en) 1994-02-25

Family

ID=16472280

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4203333A Pending JPH0651256A (en) 1992-07-30 1992-07-30 Device for discharging liquid crystal

Country Status (1)

Country Link
JP (1) JPH0651256A (en)

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