JPH06160828A - Method for sticking flat plate - Google Patents
Method for sticking flat plateInfo
- Publication number
- JPH06160828A JPH06160828A JP31749092A JP31749092A JPH06160828A JP H06160828 A JPH06160828 A JP H06160828A JP 31749092 A JP31749092 A JP 31749092A JP 31749092 A JP31749092 A JP 31749092A JP H06160828 A JPH06160828 A JP H06160828A
- Authority
- JP
- Japan
- Prior art keywords
- glass substrates
- thermosetting resin
- pressure
- flat plates
- laminating
- 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
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、一定の間隔を保ち、位
置ずれなく平板を貼合せる方法に関し、特にTN(ねじ
れネマティック)形、STN(超ねじれネマティック)
形、強誘電性などの液晶パネル、カラーフィルタ貼合せ
形CCD(電荷結合デバイス)などを形成する2枚のガ
ラスなどの平板を貼合せる方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for laminating flat plates with a constant distance and without misalignment, and particularly to TN (twisted nematic) type and STN (super twisted nematic).
The present invention relates to a method for laminating two flat plates such as glass, which form a liquid crystal panel of shape, ferroelectricity, etc., a color filter laminating type CCD (charge coupled device) and the like.
【0002】[0002]
【従来の技術】従来、液晶パネルなどを形成する2枚の
ガラス基板を貼合せる場合、図10に示すように一方の
ガラス基板1の貼合せ面となる表面に、接着剤としてた
とえば熱硬化性樹脂3をスクリーン印刷法またはディス
ペンサなどによる描画法によって、液晶を注入する注入
口9を有する開曲線状に塗布し、他方のガラス基板2の
貼合せ面となる表面全面に均一な大きさの間隔保持部材
4を散布した後、図11に示すように2枚のガラス基板
1,2を重ね合せて位置合せを行い、180℃程度の高
温状態で図12に示すように上下からプレス機の押圧板
6,7で加圧し、熱硬化性樹脂3を硬化させる加圧プレ
ス法にて、2枚のガラス基板1,2を貼合せている。2. Description of the Related Art Conventionally, when two glass substrates for forming a liquid crystal panel or the like are bonded together, as shown in FIG. The resin 3 is applied in an open curve shape having an injection port 9 for injecting liquid crystal by a screen printing method or a drawing method using a dispenser or the like, and a uniform size interval is applied to the entire surface to be the bonding surface of the other glass substrate 2. After spraying the holding member 4, the two glass substrates 1 and 2 are superposed and aligned as shown in FIG. 11, and pressed by a pressing machine from above and below as shown in FIG. 12 at a high temperature of about 180 ° C. The two glass substrates 1 and 2 are bonded together by a pressure press method of pressing the plates 6 and 7 to cure the thermosetting resin 3.
【0003】このような熱硬化性樹脂を用いる方法で
は、2枚のガラス基板の位置を合せるための機構と、高
温高圧の状態でプレスする機構とが必要であるが、今日
生産されている液晶パネルでは、水平方向では3μm以
内、間隔では0.3μm以内の位置合せ精度が要求さ
れ、プレス圧力も300mm×400mmの大きさのガ
ラス基板では、ガラス基板1枚に対して5000Nから
10000Nの力で、かつ全面に均一な加圧力で高温高
圧の状態でプレスしなければならない。The method using such a thermosetting resin requires a mechanism for aligning the positions of two glass substrates and a mechanism for pressing in a high temperature and high pressure state. The panel requires alignment accuracy within 3 μm in the horizontal direction and within 0.3 μm in the spacing, and the pressing pressure is 300N × 400mm. In addition, it must be pressed at a high temperature and high pressure with a uniform pressing force on the entire surface.
【0004】1台の装置にこれらの機構を全て備えさせ
ることはできないため、ガラス基板の位置合せを行い、
常温でプレスする機構を有する装置と、高温でプレスす
る装置とを個別に用いている。Since it is not possible to equip all of these mechanisms in one device, the glass substrate is aligned and
A device having a mechanism for pressing at room temperature and a device for pressing at high temperature are separately used.
【0005】しかし、貼合せるべきガラス基板1,2自
体の表裏の平行度が確保されていなければ(厚みの差が
あれば)、押圧面が平行である押圧板6,7によって加
圧しても均一に加圧されず、ガラス基板1,2の厚い部
分に偏って強く加圧され、各ガラス基板1,2の間隔は
一定にならない。また生産効率を向上させるために2枚
1組のガラス基板を複数組重ねて一度に加圧する場合
は、ガラス基板1,2の厚みの不均一さが累積され、よ
り一層の加圧の不均衡が発生する。However, if the front and back parallelism of the glass substrates 1 and 2 to be laminated is not ensured (if there is a difference in thickness), even if pressure is applied by the pressure plates 6 and 7 having parallel pressure surfaces. The pressure is not uniformly applied, but is strongly applied to the thick portions of the glass substrates 1 and 2, and the intervals between the glass substrates 1 and 2 are not constant. Further, in the case of stacking two sets of glass substrates one by one in order to improve the production efficiency, the unevenness of the thickness of the glass substrates 1 and 2 is accumulated to further increase the imbalance of the pressurization. Occurs.
【0006】また、液晶パネルを形成する場合、2枚の
ガラス基板の間に液晶を封入するので、この間隔が一定
でない場合は商品の信頼性、品位に大きな影響を与え
る。また、2枚のガラス基板の位置がずれた場合も同様
に品位に大きな影響を与える。Further, in the case of forming a liquid crystal panel, liquid crystal is sealed between two glass substrates, so if the distance is not constant, the reliability and quality of the product are greatly affected. Further, when the positions of the two glass substrates are deviated, the quality is also greatly affected.
【0007】そこで、図13に示すように、柔軟なゴム
膜10と保持板8との間に、貼合せるべく準備された2
枚のガラス基板1,2を置き、ゴム膜10と保持板8と
で形成される空間内を減圧して、大気圧との差で柔軟な
ゴム膜10を介して加圧する真空プレス法を用いて、2
枚のガラス基板1,2の間隔が均一になるように加圧す
る装置が用いられている。Therefore, as shown in FIG. 13, the flexible rubber film 10 and the holding plate 8 are prepared to be bonded to each other.
A vacuum press method is used in which the glass substrates 1 and 2 are placed, the space formed by the rubber film 10 and the holding plate 8 is depressurized, and pressure is applied through the flexible rubber film 10 due to the difference in atmospheric pressure. 2
A device is used that applies pressure so that the distance between the glass substrates 1 and 2 is uniform.
【0008】[0008]
【発明が解決しようとする課題】しかしながらこの装置
では、180℃程度の温度に耐えられる柔軟なゴム膜1
0が得られないため、接着剤として熱硬化性樹脂3を使
用できず、このため2液混合型のエポキシ樹脂などを使
用せねばならないので、混合後の時間制御を厳密に行わ
なければならないという問題がある。However, in this apparatus, the flexible rubber film 1 that can withstand a temperature of about 180 ° C. is used.
Since 0 cannot be obtained, the thermosetting resin 3 cannot be used as an adhesive, and therefore a two-component mixed type epoxy resin or the like must be used. Therefore, it is necessary to strictly control the time after mixing. There's a problem.
【0009】この真空プレス法に用いる他の接着剤とし
ては、紫外線硬化型樹脂が挙げられるが、柔軟なゴム膜
10の材質として紫外線を充分透過し、かつ長時間の紫
外線照射に対して劣化しない材質を選択しなければなら
ないという課題がある。Another adhesive used in this vacuum pressing method is an ultraviolet curable resin, which is a material of the flexible rubber film 10 that sufficiently transmits ultraviolet rays and is not deteriorated by irradiation with ultraviolet rays for a long time. There is a problem that the material has to be selected.
【0010】また、上記の真空プレス法においては、ゴ
ム膜10と保持板8とで形成される空間内を吸引してゴ
ム膜10を保持板8に密着させ、さらに吸引することに
よって生じる圧力差で加圧しているので、接着剤が硬化
するまで吸引を続けなければならず、貼合せが完了する
までに時間がかかり、製造効率がよくないという問題が
ある。In the above vacuum pressing method, the pressure difference generated by sucking the space formed by the rubber film 10 and the holding plate 8 to bring the rubber film 10 into close contact with the holding plate 8 and further sucking Since the pressure is applied at 1, the suction must be continued until the adhesive hardens, and it takes a long time to complete the bonding, and there is a problem that the manufacturing efficiency is not good.
【0011】さらに、加圧プレス法および真空プレス法
においてはともに、図11に示すように、注入口9が狭
く限られているため、接着剤3による2枚のガラス基板
1,2の接着後、接着剤が伸展していく過程において、
内部に残った空気はこの注入口9からしか外部に出られ
ないので、一時的に内部の圧力が上昇し、これに起因し
て外部からの加圧に対して反力が発生し、加圧力の不均
衡、2枚のガラス基板の位置ずれの発生などの原因とな
るという課題がある。Further, in both the pressure pressing method and the vacuum pressing method, as shown in FIG. 11, since the injection port 9 is narrowly limited, after bonding the two glass substrates 1 and 2 with the adhesive 3. , In the process of spreading the adhesive,
Since the air remaining inside can be discharged to the outside only through this inlet 9, the internal pressure temporarily rises, and due to this, a reaction force is generated against the external pressure, and the applied pressure is increased. However, there is a problem in that it causes the imbalance of the two, the displacement of the two glass substrates, and the like.
【0012】本発明の目的は、均一な間隔を保ち、位置
ずれなく、短時間で効率よく2枚の平板を貼合せること
ができる平板の貼合せ方法を提供することである。An object of the present invention is to provide a flat plate laminating method capable of efficiently laminating two flat plates in a short period of time without any misalignment while maintaining a uniform interval.
【0013】[0013]
【課題を解決するための手段】本発明は、一定の間隔を
保ち、相対する一対の平板を貼合せる方法において、一
対の平板のうち、一方の平板の貼合せ面に接着剤を開曲
線状に塗布し、さらにその外側に接着剤を閉曲線状に塗
布し、前記一方平板および他方平板のいずれか一方の貼
合せ面に多数の間隔保持部材を全面に散布した後、両平
板を減圧下で重ね合せ、その後外部を大気圧下に戻し、
両平板および接着剤で囲まれた閉空間内と外部との圧力
差を用いて貼合せることを特徴とする平板の貼合せ方法
である。SUMMARY OF THE INVENTION The present invention is a method for laminating a pair of flat plates facing each other while keeping a constant interval, and an adhesive is applied to the laminating surface of one of the pair of flat plates in the form of an open curve. On the outer surface of the one flat plate and the other flat plate with a plurality of spacing members are spread over the entire surface, and then both flat plates under reduced pressure. Overlap, then return the outside to atmospheric pressure,
It is a method for laminating flat plates, which is characterized in that the flat plates are pasted together by using a pressure difference between the inside of a closed space surrounded by the adhesive and the outside.
【0014】[0014]
【作用】本発明に従えば、相対する一対の平板のうち、
一方平板の貼合せ面に開曲線状に接着剤が塗布され、そ
の外側には閉曲線状に接着剤が塗布され、前記一方平板
および他方平板のいずれか一方の貼合せ面全面には多数
の間隔保持部材が散布される。このような一対の平板を
減圧下で位置合せをした後に重ね合せ、両平板と閉曲線
状に塗布された接着剤とで囲まれた閉空間を形成する。
その後、周囲を大気圧に戻し、閉空間内と外部との圧力
差によって両平板を密着させた後、加熱して接着剤を硬
化し、両平板の貼合せを完了する。したがって、短時間
で2枚の平板が均一な間隔を保ち、位置ずれを生ずるこ
となく貼合せることができる。According to the present invention, of the pair of flat plates facing each other,
On the other hand, an adhesive is applied in an open curve shape on the bonding surface of the flat plate, and an adhesive is applied in a closed curve shape on the outside thereof, and a large number of spaces are applied to the entire bonding surface of either one of the one flat plate and the other flat plate. The holding member is sprinkled. After aligning such a pair of flat plates under reduced pressure, they are overlapped with each other to form a closed space surrounded by both flat plates and the adhesive applied in the shape of a closed curve.
After that, the surroundings are returned to atmospheric pressure, and the flat plates are brought into close contact with each other due to the pressure difference between the closed space and the outside, and then heated to cure the adhesive to complete the bonding of the flat plates. Therefore, the two flat plates can be bonded to each other at a uniform interval in a short time without causing positional deviation.
【0015】[0015]
【実施例】図1は、本発明の一実施例における2枚のガ
ラス基板11,12の貼合せ前の斜視図であり、図2か
ら図4は貼合せ工程を説明するための断面図である。一
対のガラス基板11,12のうち、一方のガラス基板1
1の貼合せ面に熱硬化性樹脂13をたとえばスクリーン
印刷法によって注入口19を有する開曲線状に塗布す
る。また、この開曲線状の熱硬化性樹脂13の外側に
は、熱硬化性樹脂18を閉曲線状に塗布する。樹脂1
3,18の大きさはたとえば幅1mm、高さは100μ
mであり、開曲線状の熱硬化性樹脂13が概ね180m
m×280mmの矩形領域内に、閉曲線状の熱硬化性樹
脂18が概ね200mm×300mmの矩形領域内にそ
れぞれ塗布される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view before laminating two glass substrates 11 and 12 in an embodiment of the present invention, and FIGS. 2 to 4 are sectional views for explaining a laminating process. is there. One glass substrate 1 of the pair of glass substrates 11 and 12
The thermosetting resin 13 is applied to the bonding surface of No. 1 by, for example, a screen printing method in an open curved shape having an injection port 19. Further, the thermosetting resin 18 is applied in a closed curve on the outside of the open curving thermosetting resin 13. Resin 1
The size of 3,18 is, for example, 1 mm in width and 100 μ in height.
m, and the open-curve thermosetting resin 13 is approximately 180 m
The closed-curve thermosetting resin 18 is applied in a rectangular area of 200 mm × 300 mm in a rectangular area of m × 280 mm.
【0016】さらに、これらの熱硬化性樹脂13,18
内には間隔保持部材として、たとえば直径10μmの球
状体のガラス繊維15が分散して混入されている。ま
た、他方のガラス基板12の貼合せ面には間隔保持部材
として、たとえば直径10μmのプラスチックビーズ1
4が全面に均一に散布される。熱硬化性樹脂13,18
の塗布とプラスチックビーズ14の散布とは、本実施例
のように別々のガラス基板上に行ってもよいし、同一の
ガラス基板上に行ってもよい。Further, these thermosetting resins 13, 18
Spherical glass fibers 15 having a diameter of 10 μm, for example, are dispersed and mixed therein as a spacing member. On the other surface of the other glass substrate 12, as a space holding member, for example, plastic beads 1 having a diameter of 10 μm are used.
4 is evenly spread over the entire surface. Thermosetting resin 13, 18
The application and the spraying of the plastic beads 14 may be performed on different glass substrates as in this embodiment, or may be performed on the same glass substrate.
【0017】上述のように準備した両ガラス基板11,
12を図2に示すように上下一対の板状の保持板16,
17を有する保持機構によって保持する。その周辺を1
×103Pa程度に減圧して真空状態にした後、両ガラ
ス基板11,12間の間隔を約1mm程度に保ち、熱硬
化性樹脂13,18が接しない状態で所定の位置に位置
合せをする。次に図3に示すように、ガラス基板11と
ガラス基板12とを接近させて、熱硬化性樹脂13,1
8を全面接触させ、熱硬化性樹脂18と両ガラス基板1
1,12とで囲まれた閉空間20を形成する。Both glass substrates 11, prepared as described above,
2, a pair of upper and lower plate-like holding plates 16 as shown in FIG.
It is held by a holding mechanism having 17. Around it 1
After reducing the pressure to about 10 3 Pa and making it into a vacuum state, the space between both glass substrates 11 and 12 is kept at about 1 mm, and the thermosetting resins 13 and 18 are aligned without being in contact with each other. To do. Next, as shown in FIG. 3, the glass substrate 11 and the glass substrate 12 are brought close to each other, and the thermosetting resin 13, 1
8 in contact with the entire surface, and the thermosetting resin 18 and both glass substrates 1
A closed space 20 surrounded by 1 and 12 is formed.
【0018】次に両ガラス基板11,12の周囲を大気
圧下に戻し、保持板16,17を外す。この状態で閉空
間20内の気圧と大気圧との差で、両ガラス基板11,
12は加圧される。この際、両ガラス基板11,12間
に作用する圧力は約6000Nであり、この圧力で熱硬
化性樹脂13,18は、図4に示すように、間隔保持部
材であるガラス繊維15やプラスチックビーズ14の高
さ(直径)である10μmまで伸展され、仮接着され
る。これによって、閉空間20の体積は約1/10にな
り、その圧力は約10倍の104Pa程度になるが、大
気圧(約105Pa)よりも充分低く問題はない。Next, the circumference of both glass substrates 11 and 12 is returned to atmospheric pressure, and the holding plates 16 and 17 are removed. In this state, the difference between the atmospheric pressure in the closed space 20 and the atmospheric pressure causes both glass substrates 11,
12 is pressurized. At this time, the pressure acting between the glass substrates 11 and 12 is about 6000 N, and the thermosetting resins 13 and 18 under this pressure cause the glass fibers 15 and the plastic beads, which are the spacing members, to move as shown in FIG. It is extended to a height (diameter) of 14 μm and temporarily bonded. As a result, the volume of the closed space 20 becomes about 1/10 and the pressure becomes about 10 times 10 4 Pa, which is sufficiently lower than the atmospheric pressure (about 10 5 Pa) and there is no problem.
【0019】次に、仮接着された両ガラス基板11,1
2をたとえば180℃の炉に入れ、この温度をたとえば
2時間保持し、熱硬化性樹脂13,18を硬化させて貼
合せを完了する。その後、開曲線状の熱硬化性樹脂13
が塗布された矩形領域部分を残し、閉曲線状の熱硬化性
樹脂18が塗布された部分は切断面線21,22,2
3,24で切断される。Next, both glass substrates 11 and 1 which are temporarily bonded
2 is put in a furnace of, for example, 180 ° C., and this temperature is maintained for, for example, 2 hours to cure the thermosetting resins 13 and 18 to complete the bonding. Then, the thermosetting resin 13 having an open curve shape
The rectangular area portion coated with is left, and the portion coated with the thermosetting resin 18 having a closed curve shape is cut surface lines 21, 22, 2
It is cut at 3,24.
【0020】図5は、貼合せの終わったガラス基板1
1,12の斜視図であり、図6は閉曲線状の熱硬化性樹
脂18が塗布された部分を切除したガラス基板11,1
2の斜視図である。貼合せ完了後、切断面線21,2
2,23,24で両ガラス基板11,12の開曲線状の
熱硬化性樹脂13と閉曲線状の熱硬化性樹脂18との間
を切断し、閉曲線状の熱硬化性樹脂18が塗布された部
分を取除く。FIG. 5 shows the glass substrate 1 after the bonding.
1 and 12 are perspective views, and FIG. 6 is a glass substrate 11, 1 in which a portion to which a thermosetting resin 18 having a closed curve shape is applied is cut off.
It is a perspective view of FIG. After laminating is completed, the cut surface lines 21 and 2
2, 23 and 24 were cut between the open curve thermosetting resin 13 and the closed curve thermosetting resin 18 of both glass substrates 11 and 12, and the closed curve thermosetting resin 18 was applied. Remove the part.
【0021】また、両ガラス基板11,12の接着をさ
らに大きな力で行うためには、減圧下での接触の終わっ
た両ガラス基板11,12を大気圧下に戻した後、さら
にチャンバなどの耐圧容器に入れ、この容器内の気圧を
高くすることによってより大きな押圧力が得られる。ま
た、接着剤の種類によっては加圧による接着のみでよい
こともある。In order to bond the two glass substrates 11 and 12 with a greater force, the two glass substrates 11 and 12 that have been in contact with each other under reduced pressure are returned to the atmospheric pressure, and then the chamber or the like is further removed. A larger pressing force can be obtained by placing the container in a pressure resistant container and increasing the atmospheric pressure in this container. Further, depending on the type of the adhesive, only the adhesion by pressure may be sufficient.
【0022】なお、本実施例では液晶パネル用のガラス
基板11,12を貼合せる方法を主に説明したので、ス
クリーン印刷法などによって塗布する熱硬化性樹脂1
3,18の曲線は、熱硬化性樹脂18は閉曲線、熱硬化
性樹脂13は注入口19のある開曲線であれば、形状は
円形、楕円形など、どのような形状であってもよい。In this embodiment, the method of laminating the glass substrates 11 and 12 for the liquid crystal panel has been mainly described. Therefore, the thermosetting resin 1 applied by the screen printing method or the like.
The curves 3 and 18 may have any shape such as a circular shape or an elliptical shape as long as the thermosetting resin 18 is a closed curve and the thermosetting resin 13 is an open curve having an injection port 19.
【0023】さらに、本実施例では平板として一対のガ
ラス基板11,12を貼合せる場合を説明を行ったが、
貼合せる平板はガラス基板に限らない。また図7で示す
ように一対のガラス基板のうちの一方のガラス基板31
の貼合せ面に注入口39を有する複数の開曲線状の熱硬
化性樹脂33を塗布し、それらの熱硬化性樹脂33の全
てを含むように外周に閉曲線状の熱硬化性樹脂38を塗
布した後に、上述の貼合せ方法を実施してもよい。Further, in this embodiment, the case where the pair of glass substrates 11 and 12 are bonded together as a flat plate has been described.
The flat plates to be bonded are not limited to glass substrates. Further, as shown in FIG. 7, one glass substrate 31 of the pair of glass substrates is used.
A plurality of open-curve thermosetting resins 33 each having an injection port 39 are applied to the bonding surface, and a closed-curve thermosetting resin 38 is applied to the outer periphery so as to include all of the thermosetting resins 33. After that, you may implement the above-mentioned bonding method.
【0024】図8は、他の貼合せ方法による2枚のガラ
ス基板41,42の貼合せ前の斜視図であり、図9は、
この貼合せ方法によって貼合せを完了した2枚のガラス
基板41,42を切断して注入口49を形成する過程を
示す斜視図である。図8に示すように、一対のガラス基
板41,42の一方のガラス基板41の貼合せ面に閉曲
線状で、しかも液晶注入口を形成するための凸部40を
有するように熱硬化性樹脂43を塗布し、他方の基板4
2の貼合せ面には間隔保持部材としてのプラスチックビ
ーズ44を全面に散布し、本実施例と同様にして上下一
対の保持部材で保持し、周囲を減圧して真空状態にした
後、両ガラス基板41,42の位置合せをする。次に両
ガラス基板41,42を熱硬化性樹脂43が全面接触す
るように接近させ、閉空間を形成する。その後、ガラス
基板41,42の周囲を大気圧下に戻し、閉空間内の気
圧と大気圧との差によって両ガラス基板41,42を加
圧して仮接着が完了する。さらに仮接着されたガラス基
板41,42を加熱して熱硬化性樹脂43を硬化させ貼
合せを行う。このようにして貼合せが完了した図9
(1)に示すような状態のガラス基板41,42を、図
9(2)に示す切断面線45に沿って凸部40にかかる
ようにガラス基板41,42を切断して、図9(3)に
示すように液晶の注入口49を形成する。FIG. 8 is a perspective view of the two glass substrates 41 and 42 before the bonding by another bonding method, and FIG.
It is a perspective view which shows the process of cutting the two glass substrates 41 and 42 which completed the bonding by this bonding method, and forming the injection port 49. As shown in FIG. 8, the thermosetting resin 43 has a closed curve shape on the bonding surface of one glass substrate 41 of the pair of glass substrates 41, 42 and has a convex portion 40 for forming a liquid crystal injection port. On the other substrate 4
Plastic beads 44, which serve as a space holding member, are sprayed on the entire bonding surface of No. 2 and are held by a pair of upper and lower holding members in the same manner as in the present embodiment. The substrates 41 and 42 are aligned. Next, the two glass substrates 41 and 42 are brought close to each other so that the thermosetting resin 43 comes into contact with the entire surface to form a closed space. After that, the surroundings of the glass substrates 41 and 42 are returned to atmospheric pressure, and the glass substrates 41 and 42 are pressed by the difference between the atmospheric pressure and the atmospheric pressure in the closed space to complete the temporary bonding. Further, the temporarily adhered glass substrates 41, 42 are heated to cure the thermosetting resin 43 and to bond them. FIG. 9 shows that the pasting is completed in this way.
The glass substrates 41 and 42 in the state as shown in (1) are cut along the cutting plane line 45 shown in FIG. As shown in 3), a liquid crystal injection port 49 is formed.
【0025】以上のような貼合せ方法によっても従来技
術で生じていた課題を解決することができるが、この方
法では凸部40を切断して注入口49を形成しなければ
ならないため、液晶注入不良が発生しないようにかなり
高度な切断技術が要求される。また、あまり複雑な注入
口形状にすることは不可能であるため、閉曲線の設計に
おける自由度が失われることにもなりかねない。The above-mentioned bonding method can also solve the problems that have occurred in the prior art. However, in this method, the projection 40 must be cut to form the injection port 49. A fairly advanced cutting technique is required to prevent defects. Further, since it is impossible to make the inlet shape so complicated, the degree of freedom in designing the closed curve may be lost.
【0026】したがって、本発明の実施例に従う貼合せ
方法は、従来技術が有していた課題を解決し、なおかつ
前述した注入口49を切断によって形成する方法よりも
簡単に行うことができる。Therefore, the laminating method according to the embodiment of the present invention solves the problems of the prior art and is simpler than the above-mentioned method of forming the injection port 49 by cutting.
【0027】[0027]
【発明の効果】以上のように本発明によれば、2枚の平
板および閉曲線状に塗布された接着剤で囲まれた完全な
真空状態である閉空間と外部との圧力差を用いて貼合せ
を行うため、貼合せるべき平板の平行度に影響されるこ
となく、また、反力が発生することもなく、均一な圧力
で加圧することができる。また、貼合せに要する時間も
短時間ですむ。As described above, according to the present invention, the sticking is performed by using the pressure difference between the closed space in a complete vacuum state surrounded by the two flat plates and the adhesive applied in the closed curve shape and the outside. Since the bonding is performed, it is possible to apply a uniform pressure without being affected by the parallelism of the flat plates to be bonded and without generating a reaction force. Also, the time required for bonding is short.
【0028】したがって、商品の信頼性や品位を向上さ
せ、製造効率を上げることが可能となる。Therefore, it is possible to improve the reliability and quality of the product and increase the manufacturing efficiency.
【図1】本発明の一実施例における貼合せ前の両ガラス
基板11,12の斜視図である。FIG. 1 is a perspective view of both glass substrates 11 and 12 before laminating in one embodiment of the present invention.
【図2】本発明の一実施例における貼合せ開始時の両ガ
ラス基板11,12の断面図である。FIG. 2 is a cross-sectional view of both glass substrates 11 and 12 at the start of bonding in one embodiment of the present invention.
【図3】本発明の一実施例における接着剤接触時の両ガ
ラス基板11,12の断面図である。FIG. 3 is a cross-sectional view of both glass substrates 11 and 12 at the time of contact with an adhesive in one embodiment of the present invention.
【図4】本発明の一実施例における仮貼合せおよび貼合
せ完了時の両ガラス基板11,12の断面図である。FIG. 4 is a cross-sectional view of both glass substrates 11 and 12 at the time of temporary bonding and completion of bonding in one embodiment of the present invention.
【図5】本発明の一実施例における貼合せ完了時の斜視
図である。FIG. 5 is a perspective view at the time of completion of bonding in one embodiment of the present invention.
【図6】本発明の一実施例における閉曲線状の熱硬化性
樹脂18を切断して除去した後の斜視図である。FIG. 6 is a perspective view after the thermosetting resin 18 having a closed curve shape in the embodiment of the present invention is cut and removed.
【図7】本発明の他の実施例におけるガラス基板31へ
の接着剤33,38の塗布形状例を示す斜視図である。FIG. 7 is a perspective view showing an application shape example of adhesives 33 and 38 on a glass substrate 31 in another embodiment of the present invention.
【図8】他の貼合せ方法による貼合せ前の両ガラス基板
41,42の斜視図である。FIG. 8 is a perspective view of both glass substrates 41 and 42 before being bonded by another bonding method.
【図9】他の貼合せ方法による両ガラス基板41,42
を貼合せる過程を示す工程図である。FIG. 9: Both glass substrates 41, 42 by another bonding method
It is a flowchart showing a process of laminating.
【図10】従来技術による貼合せ前の両ガラス基板1,
2の斜視図である。FIG. 10: Both glass substrates before bonding 1 according to the prior art
It is a perspective view of FIG.
【図11】従来技術による貼合せ完了時の両ガラス基板
1,2の斜視図である。FIG. 11 is a perspective view of both glass substrates 1 and 2 when the bonding is completed according to the prior art.
【図12】従来技術のプレス法の加圧状態を説明するた
めの断面図である。FIG. 12 is a cross-sectional view for explaining a pressed state of a conventional pressing method.
【図13】従来技術の真空プレス法を説明するための断
面図である。FIG. 13 is a cross-sectional view for explaining a conventional vacuum pressing method.
11,12 ガラス基板 13,18 熱硬化性樹脂 14 プラスチックビーズ 15 ガラス繊維 20 閉空間 11, 12 Glass substrate 13, 18 Thermosetting resin 14 Plastic beads 15 Glass fiber 20 Closed space
Claims (1)
を貼合せる方法において、 一対の平板のうち、一方の平板の貼合せ面に接着剤を開
曲線状に塗布し、さらにその外側に接着剤を閉曲線状に
塗布し、前記一方平板および他方平板のいずれか一方の
貼合せ面に多数の間隔保持部材を全面に散布した後、両
平板を減圧下で重ね合せ、その後外部を大気圧下に戻
し、両平板および接着剤で囲まれた閉空間内と外部との
圧力差を用いて貼合せることを特徴とする平板の貼合せ
方法。1. A method of laminating a pair of flat plates facing each other while keeping a constant interval, wherein an adhesive is applied in an open curve shape on the laminating surface of one of the pair of flat plates, and further on the outside thereof. Apply the adhesive in a closed curve, spread a large number of spacing members on the bonding surface of one of the one flat plate and the other flat plate over the entire surface, then overlay both flat plates under reduced pressure, and then at atmospheric pressure outside. A method for laminating flat plates, which is characterized by returning to the lower side and laminating by using the pressure difference between the inside of a closed space surrounded by both flat plates and an adhesive and the outside.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31749092A JPH06160828A (en) | 1992-11-26 | 1992-11-26 | Method for sticking flat plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31749092A JPH06160828A (en) | 1992-11-26 | 1992-11-26 | Method for sticking flat plate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06160828A true JPH06160828A (en) | 1994-06-07 |
Family
ID=18088816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP31749092A Pending JPH06160828A (en) | 1992-11-26 | 1992-11-26 | Method for sticking flat plate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06160828A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006520044A (en) * | 2003-03-06 | 2006-08-31 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Data processing system with cache optimized for processing data flow applications |
-
1992
- 1992-11-26 JP JP31749092A patent/JPH06160828A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006520044A (en) * | 2003-03-06 | 2006-08-31 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Data processing system with cache optimized for processing data flow applications |
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