JPS63223725A - Production of liquid crystal display panel - Google Patents
Production of liquid crystal display panelInfo
- Publication number
- JPS63223725A JPS63223725A JP5940287A JP5940287A JPS63223725A JP S63223725 A JPS63223725 A JP S63223725A JP 5940287 A JP5940287 A JP 5940287A JP 5940287 A JP5940287 A JP 5940287A JP S63223725 A JPS63223725 A JP S63223725A
- Authority
- JP
- Japan
- Prior art keywords
- spring
- cell
- point
- pressed
- rigid member
- 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 description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 239000003566 sealing material Substances 0.000 claims abstract description 13
- 125000006850 spacer group Chemical group 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 16
- 230000000452 restraining effect Effects 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 abstract description 23
- 239000004945 silicone rubber Substances 0.000 abstract description 22
- 238000009826 distribution Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は液晶表示パネルの製造方法、特に２枚の基板の
貼合せ方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing a liquid crystal display panel, and more particularly to a method for bonding two substrates together.
従来の技術
２枚の電極基板間に液晶を封じてなる液晶表示パネルの
製造方法に於て、２枚の基板を貼合せる方法としては、
シール材をパターン塗布した基板ともう一方の基板をス
ペーサを介して重ね合せ、貼合せたセルを加圧した状態
でシール材を加熱硬化する方法が一般的である。Conventional technology In the manufacturing method of a liquid crystal display panel in which liquid crystal is sealed between two electrode substrates, the method of bonding the two substrates is as follows.
A common method is to stack a substrate on which a pattern of sealing material has been applied and another substrate with a spacer interposed therebetween, and heat and harden the sealing material while applying pressure to the bonded cells.
第４図ａはこのような従来の貼合せ方法の説明図を示し
ており、２枚め電極基板１および２の一方に、スペーサ
材を含んだシール材３を塗布しスペーづ４を介して重ね
合せだセル５を基板のそりに沿うように弾性体、例えば
シリコンゴムブロック６と交互に積み上げ、抑圧板７を
もった剛体的な加圧体８によりセル６を加圧する。この
ような加圧方法によれば第４図すに示すような圧力分布
９となり、基板の周囲に位置するシール３の上にかかる
荷重は、中央部に比べて小さくなり、シール材の粘性が
強い場合にはシール材に混入したスペーサ材の径で決ま
る所定ギャップにまでセル間隙をせばめることができず
、ギャップ均一性を得ることが難しかった。FIG. 4a shows an explanatory diagram of such a conventional bonding method, in which a sealing material 3 containing a spacer material is applied to one of the second electrode substrates 1 and 2 through a spacer 4. The stacked cells 5 are stacked alternately with elastic bodies, such as silicone rubber blocks 6, along the warp of the substrate, and the cells 6 are pressurized by a rigid presser body 8 having a suppressing plate 7. According to such a pressurizing method, the pressure distribution 9 as shown in Fig. 4 is obtained, and the load applied to the seal 3 located around the substrate is smaller than that at the center, and the viscosity of the seal material is reduced. If the sealing material is strong, the cell gap cannot be narrowed to a predetermined gap determined by the diameter of the spacer material mixed in the sealing material, making it difficult to obtain gap uniformity.
第６図、第６図はこの点を改良した従来の加圧方法の一
例を示しており、平板状のシリコンゴムブロック６を使
用するかわりにリング状のシリコンゴム１ｏを介してセ
ルのシール部を押圧し、これ↓りも剛性の小さい例えば
図のような多数の突起を形成したシリコンゴムブロック
１１によりセル６の中央部を押圧する。このような構成
によれば、セルのシール部および中央部の抑圧条件を独
立に最適条件に設定することができる。6 and 6 show an example of a conventional pressurizing method that improves this point, in which instead of using a flat silicone rubber block 6, a ring-shaped silicone rubber 1o is used to press the sealing part of the cell. , and the central part of the cell 6 is pressed by a silicone rubber block 11 having a smaller rigidity and having a large number of protrusions as shown in the figure, for example. According to such a configuration, the suppression conditions for the seal portion and the center portion of the cell can be independently set to optimum conditions.
発明が解決しようとする問題点
このようなセルにかかる圧力の均一性を改善した例にお
いても剛体的な加圧体８で押圧すれば環状シリコンゴム
１Ｑおよびシリコンゴムブロック１１の厚みや密度のバ
ラツキにより、例えば第６図に示すような押圧力の不均
衡が生じ、この結果セルギャップの不均一が生ずる。こ
れを防ぐためには、シリコンゴムの平面度を高精度にし
、かつ密度も均一でなくてはならない。Problems to be Solved by the Invention Even in such an example in which the uniformity of the pressure applied to the cells is improved, variations in the thickness and density of the annular silicone rubber 1Q and the silicone rubber block 11 occur when pressing with the rigid pressurizing body 8. This causes an imbalance in the pressing force as shown in FIG. 6, for example, resulting in non-uniform cell gaps. In order to prevent this, the flatness of the silicone rubber must be highly accurate and the density must be uniform.
またシール材が熱硬化性である場合、第６図の構成で加
圧した状態で高温下に保持するために、シリコンゴムの
熱膨張により応力が発生し、セルギャップが所定の大き
さより小さくなったり、シリコンゴムの熱膨張による変
形量の差により、加圧力に不均衡が生じ、セル全面にわ
たってのギャップ均一性を得るのが困難であるなどの問
題点があった。In addition, when the sealing material is thermosetting, stress is generated due to thermal expansion of the silicone rubber due to the structure shown in Figure 6, which is maintained under high temperature under pressure, causing the cell gap to become smaller than a predetermined size. In addition, due to the difference in the amount of deformation due to thermal expansion of the silicone rubber, there is an imbalance in the pressing force, making it difficult to obtain uniformity of the gap over the entire surface of the cell.
問題点を解決するだめの手段
本発明は上記の問題点を解決するために以下の構成を採
っている。すなわち、セルを押圧する手段として、セル
の両面より弾性体を介して前記セルを押圧する一対の剛
体部材と、前記剛体部材の一方をその中心にて点抑圧す
るバネと、前記バネにより点押圧される剛体部材の基板
面内方向の変位を拘束する位置決めする手段を有し、前
記バネにより点押圧される剛体部材が、前記バネの変位
方向およびバネ押圧点を支点とする回転方向の自由度を
持つ構成になっている。Means for Solving the Problems The present invention adopts the following configuration in order to solve the above problems. That is, the means for pressing the cell includes a pair of rigid members that press the cell from both sides of the cell via an elastic body, a spring that presses one of the rigid members at a point at its center, and a point press by the spring. positioning means for restraining the displacement of the rigid member in the in-plane direction of the substrate, and the rigid member pressed at a point by the spring has a degree of freedom in the direction of displacement of the spring and in the direction of rotation about the spring pressing point as a fulcrum. It is configured to have
作用
このようにセルの加圧方法として、弾性体を保持する剛
体部材の一つをセル相対面と反対側の面の中心で点押圧
することにより、セルを挾持するシリコンゴムの厚みや
密度および熱膨張による変形のムラがあってもセルの押
圧力の分布に不均衡が生じることがないためにセルギャ
ップのムラが生じることがない。Function As described above, as a method of pressurizing the cell, one of the rigid members holding the elastic body is pressed at a point at the center of the surface opposite to the cell facing surface, thereby controlling the thickness and density of the silicone rubber that holds the cell. Even if there is uneven deformation due to thermal expansion, there is no imbalance in the distribution of the pressing force of the cells, so there is no uneven cell gap.
まだ、バネにより点抑圧される剛体部材はバネの変位力
向とバネ押圧点を支点とする基板面内力向の変位は位置
決め手段により拘束されているため、基板のズレが生じ
ることもない。However, since the rigid member that is point-suppressed by the spring is restrained by the positioning means in the direction of the spring's displacement force and in the direction of the in-plane force of the board with the spring pressing point as a fulcrum, no displacement of the board occurs.
また、剛体の点抑圧とバネを用いて行うことにより、シ
リコンゴムの熱膨張により発生する応力を吸収でき、か
つばねを保持するバネ保持部材とセルの相対位置を固定
するだけで、常にセルにかかる押圧力を一定にすること
ができるために、均一なセルギャップを安定に得る装置
を容易に実現することができる。In addition, by using rigid body point compression and springs, it is possible to absorb the stress generated by the thermal expansion of silicone rubber, and by simply fixing the relative position of the cell and the spring holding member that holds the spring, the cell is always Since this pressing force can be kept constant, it is possible to easily realize a device that stably obtains a uniform cell gap.
実施例
以下に本発明の実施例に従って本発明の詳細な説明を行
なう。第１図ａは本発明の一実施例を示すセル６の貼合
せ加圧状態を示す。第１図では２枚の電極基板１および
２の一方に、スペーサ材を含んだシール材３を塗布し、
スペーサ４を介して重ね合せだセル６を押圧する手段と
して、環状シリコンゴム１０によりシール部を押圧（７
、それより剛性の小さい、例えばパネル接触面を小さい
突起伏にしたシリコンゴム２１により中央部を押圧する
。これらのシリコンゴムは、剛体部材２２゜２４により
保持されている。剛体部材２４は、加圧体２６に取付け
られたバネにより点抑圧されるわけであるが、このバネ
としてスプリングプランジャー２６を用いれば取付けも
蓉易でかつバネの軸線に垂直な方向にバネが変形するこ
ともない。EXAMPLES Below, the present invention will be explained in detail according to examples of the present invention. FIG. 1a shows a state in which a cell 6 is laminated and pressed, showing an embodiment of the present invention. In FIG. 1, a sealing material 3 containing a spacer material is applied to one of two electrode substrates 1 and 2.
As a means for pressing the stacked cells 6 through the spacer 4, the sealing portion is pressed by an annular silicone rubber 10 (7
, the central portion is pressed with a silicone rubber 21 having a lower rigidity, for example, a silicone rubber 21 with a small protrusion on the panel contact surface. These silicone rubbers are held by rigid members 22 and 24. The rigid member 24 is pressed at a point by a spring attached to the pressurizing body 26, but if a spring plunger 26 is used as the spring, installation is easy and the spring is held in a direction perpendicular to the axis of the spring. It does not deform.
スプリングプランジャー２６は、セル６の面の対称中心
における法線上にて力が作用するよう配置されており、
このスプリングプランジャーより力を受ける剛体部材２
４は、上記したように中心でスプリングプランジャー２
６により点押圧されており、支持軸２３が通っている穴
は第１図すに示すように支持軸２３の軸線に対してテー
パを持つ部分と、軸のはめあい精度によって決まるごく
小さい平行部を基板表面高さ近傍に持つためにセル６の
面内方向でのズレが少なく、はぼ一定の箇所を押圧でき
、かつ第２図に矢印で示すような方向にある角度まで回
転できる。従ってシリコンゴムの厚みや密度にムラが有
ったり、高温炉内でのシリコンゴムの熱膨張による変形
にムラが有ってもセルにかかる圧力分布の均一性が保た
れる。The spring plunger 26 is arranged so that a force acts on the normal line to the center of symmetry of the plane of the cell 6,
Rigid member 2 that receives force from this spring plunger
4 is the spring plunger 2 at the center as mentioned above.
6, and the hole through which the support shaft 23 passes has a tapered part with respect to the axis of the support shaft 23 and a very small parallel part determined by the fitting accuracy of the shaft, as shown in Figure 1. Since it is held close to the surface level of the substrate, there is little displacement in the in-plane direction of the cell 6, and it is possible to press a more or less constant location, and it can be rotated up to a certain angle in the direction shown by the arrow in FIG. Therefore, even if there is unevenness in the thickness or density of the silicone rubber, or even if there is unevenness in the deformation due to thermal expansion of the silicone rubber in the high-temperature furnace, the uniformity of the pressure distribution applied to the cell can be maintained.
第３図ａ、ｂは本発明に係わるアクティブマトリックス
型カラー表示パネルの製造方法の一部を示す。3a and 3b show a part of the method for manufacturing an active matrix color display panel according to the present invention.
第３図において、一方の電極基板３１は基板表面に蒸着
、フォトファブリケーション技術によって画像表示用の
画素子およびスイッチング素子となる薄膜トランジスタ
素子が取付けられている４枚取りの基板である。この基
板に対し、もう一方のカラーフィルタを形成した周囲に
スペーサ材を含んだシール材を塗布した電極基板３２が
重ね合せである。この重ね合された基板をシリコンゴム
３３で上下より押圧するために剛体的な加圧体３８に基
板３２側をシリコンゴムにて押圧する４つの剛体部材３
５がそれぞれ位置決め用の２本の軸３６を介して保持さ
れており、それぞれの中心にてスプリングプランジャー
３７にて点抑圧されている。この場合、土台３４と剛体
部材３８の、基板側の面の平行度が比較的精度の低いも
のであっても、カラーフィルタを形成した基板３２を押
圧する剛体部材３６はスプリングプランジャー３７の押
圧点を支点とする回転方向に自由度を持っているため、
それぞれ各基板に沿うことができ、４枚のセルに等しい
押圧力を印加することができる。In FIG. 3, one electrode substrate 31 is a four-sheet substrate on which thin film transistor elements serving as image display pixels and switching elements are attached by vapor deposition and photofabrication technology. An electrode substrate 32 on which a sealing material containing a spacer material is applied around the other color filter is superimposed on this substrate. In order to press the stacked substrates from above and below with silicone rubber 33, four rigid members 3 press the substrate 32 side with silicone rubber against a rigid pressurizing body 38.
5 are each held via two positioning shafts 36, and are held at their centers by spring plungers 37. In this case, even if the parallelism of the substrate-side surfaces of the base 34 and the rigid member 38 is relatively low in accuracy, the rigid member 36 that presses the substrate 32 on which the color filter is formed is pressed by the spring plunger 37. Since it has a degree of freedom in the direction of rotation with the point as the fulcrum,
Each can be applied along each substrate, and an equal pressing force can be applied to the four cells.
発明の効果
以上述べてきたように、本発明によれば、セルを挾持す
るシリコンゴムの平面度や密度および熱膨張による変形
に多少のムラがあった場合でもセルの押圧力の分布に不
均衡の生じることのないようなセル押圧装置を比較的簡
単な構成にて得ることができる。Effects of the Invention As described above, according to the present invention, even if there is some unevenness in the flatness, density, or deformation due to thermal expansion of the silicone rubber that holds the cells, the distribution of the pressing force on the cells will be uneven. It is possible to obtain a cell pressing device with a relatively simple structure that does not cause the above problem.
【図面の簡単な説明】
第１図は本発明の液晶表示パネル製造方法を実施した装
置の構成を示す断面図、第２図は本発明の実施例におい
て、バネによりセル相対面と反対側の面の中心を押圧さ
れ、セルを弾性体を介して押圧する剛体部材の挙動を示
す図、第３図は複数取りの基板を切断する前に貼合せる
場合の本発明の適用例を示す平面図および断面図、第４
図は従来の液晶表示パネルの製造方法におけるセル加圧
装置およびその圧力分布を示す図、第６図、第６図は従
来例における液晶表示パネルの製造装置の断面図および
原理図である。
１．２，３１．３２゛°・・・・電極基板、３・・・・
°°シール材、４・・・・・・スペーサ、６・・・・・
・セル、６・旧・・弾性体、７ 、８ 、２６ 、３８
°゛゛゛加圧体、９・°゛パ°圧圧力分布ヘトトル１ｏ
・・・・・・環状シリコンゴム、２１°゛°°゛中央部
押圧シリコンゴム、２２．３４・・・・・・基台、２３
．３６・・・・・・支持軸、２４．３５・・・・・・剛
体部材、２５．３７・・・・・・スプリングプランジャ
ー、３３・・・・・・弾性体。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
↓
（障
第２図
第３図
第 ４ 図
（ｊ〕[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a cross-sectional view showing the configuration of an apparatus implementing the liquid crystal display panel manufacturing method of the present invention, and Fig. 2 is a cross-sectional view showing the configuration of an apparatus in which the method for manufacturing a liquid crystal display panel of the present invention is implemented. A diagram showing the behavior of a rigid member that is pressed at the center of its surface and presses a cell through an elastic body, and FIG. 3 is a plan view showing an example of application of the present invention in the case of laminating a plurality of substrates before cutting them. and cross-sectional view, 4th
The figure shows a cell pressurizing device and its pressure distribution in a conventional method for manufacturing a liquid crystal display panel, and FIGS. 1.2, 31.32゛°...electrode substrate, 3...
°°Sealing material, 4...Spacer, 6...
・Cell, 6・Old...Elastic body, 7 , 8 , 26 , 38
°゛゛゛Pressure body, 9.
・・・・・・Annular silicone rubber, 21°゛°°゛Central pressing silicone rubber, 22.34・・・・Base, 23
．． 36... Support shaft, 24.35... Rigid member, 25.37... Spring plunger, 33... Elastic body. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure ↓ (Disability Figure 2 Figure 3 Figure 4 (j)
Claims (4)
介して重ね合せたセルを押圧しながら前記シール材を硬
化させる工程を有する液晶表示パネルの製造方法に於て
、前記セルの両面より弾性体を介して前記セルを押圧す
る一対の剛体部材と、前記剛体部材の一方を中心にて点
押圧するバネと、前記バネにより点押圧される剛体部材
の、基板面内方向の変位を拘束する位置決め手段を有し
、前記バネにより点押圧される剛体部材が、前記バネの
変位方向およびバネ押圧点を支点とする回転方向の自由
度を持つことを特徴とする液晶表示パネルの製造方法。(1) In a method for manufacturing a liquid crystal display panel, the method includes a step of curing the sealing material while pressing a cell in which two electrode substrates are stacked together with a sealing material containing a spacer material interposed therebetween. A pair of rigid members that press the cell through a more elastic body, a spring that presses one of the rigid members at a point, and a displacement of the rigid member that is pressed at a point by the spring in the in-plane direction of the substrate. A method for manufacturing a liquid crystal display panel, characterized in that a rigid member having positioning means for restraining and pressed at a point by the spring has degrees of freedom in the direction of displacement of the spring and in the direction of rotation about the spring pressing point as a fulcrum. .
バネが、セルを挾持する弾性体の熱膨張による変位量よ
り大きい変位を持つことを特徴とする特許請求の範囲第
１項記載の液晶表示パネルの製造方法。(2) When the sealing material is heated and hardened, the spring that presses the rigid member has a displacement larger than the displacement due to thermal expansion of the elastic body that clamps the cell. A method for manufacturing a liquid crystal display panel.
ンジャーを用いたことを特徴とする特許請求の範囲第１
項記載の液晶表示パネルの製造方法。(3) Claim 1, characterized in that a spring plunger is used as a spring that presses a rigid member at a point.
2. Method for manufacturing a liquid crystal display panel as described in Section 1.
決めされており、前記剛体部材の前記軸を通す孔が、支
持軸の軸線に対してテーパを持つことを特徴とする特許
請求の範囲第１項記載の液晶表示パネルの製造方法。(4) A rigid member that is point-pressed by a spring is positioned by a shaft, and a hole through which the shaft of the rigid member passes is tapered with respect to the axis of the support shaft. A method for manufacturing a liquid crystal display panel according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5940287A JPH0820628B2 (en) | 1987-03-13 | 1987-03-13 | Liquid crystal display panel manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5940287A JPH0820628B2 (en) | 1987-03-13 | 1987-03-13 | Liquid crystal display panel manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63223725A true JPS63223725A (en) | 1988-09-19 |
| JPH0820628B2 JPH0820628B2 (en) | 1996-03-04 |
Family
ID=13112247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5940287A Expired - Fee Related JPH0820628B2 (en) | 1987-03-13 | 1987-03-13 | Liquid crystal display panel manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0820628B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02139518A (en) * | 1988-11-21 | 1990-05-29 | Matsushita Electric Ind Co Ltd | Production of liquid crystal panel |
| CN108087487A (en) * | 2017-12-19 | 2018-05-29 | 湖南中科信为科技有限公司 | A kind of compression spring vibrating isolation system |
-
1987
- 1987-03-13 JP JP5940287A patent/JPH0820628B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02139518A (en) * | 1988-11-21 | 1990-05-29 | Matsushita Electric Ind Co Ltd | Production of liquid crystal panel |
| CN108087487A (en) * | 2017-12-19 | 2018-05-29 | 湖南中科信为科技有限公司 | A kind of compression spring vibrating isolation system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0820628B2 (en) | 1996-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |