JPH08110504A - Heater of glass substrate for liquid crystal display - Google Patents

Heater of glass substrate for liquid crystal display

Info

Publication number
JPH08110504A
JPH08110504A JP6247608A JP24760894A JPH08110504A JP H08110504 A JPH08110504 A JP H08110504A JP 6247608 A JP6247608 A JP 6247608A JP 24760894 A JP24760894 A JP 24760894A JP H08110504 A JPH08110504 A JP H08110504A
Authority
JP
Japan
Prior art keywords
plate
fixed
glass substrates
glass substrate
thin plate
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
Application number
JP6247608A
Other languages
Japanese (ja)
Other versions
JP2665319B2 (en
Inventor
Kiyoo Katagiri
清男 片桐
Ichiro Ishizaka
一朗 石坂
Toshio Sekikawa
利夫 関川
Kazue Uchiyama
一栄 内山
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.)
Shin Etsu Engineering Co Ltd
Original Assignee
Shin Etsu Engineering 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 Shin Etsu Engineering Co Ltd filed Critical Shin Etsu Engineering Co Ltd
Priority to JP6247608A priority Critical patent/JP2665319B2/en
Priority to KR1019950035363A priority patent/KR960015006A/en
Publication of JPH08110504A publication Critical patent/JPH08110504A/en
Application granted granted Critical
Publication of JP2665319B2 publication Critical patent/JP2665319B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

PURPOSE: To provide a heater capable of uniformly heating the entire surface of glass substrates and acting the pressurization of these glass substrates as uniformly distributed load on the substrates as well. CONSTITUTION: This heater has one stationary surface plate 2 which holds two sheets one set of the aligned and temporarily fixed glass substrates a, b and a facing movable surface plate 3 which can vary the distance from the plate 2 and is pressurized by a pressurizing means 5. The stationary plate 2 and the moving plate 3 are bored with recessed parts 7, 14 exclusive of their circumferentical edges on the surfaces respectively facing the glass substrates a, b and the openings of the recessed parts 7, 14 are closed by thin sheets 8, 15. In addition, the circumferences of the sheets 8, 15 are fixed to the circumferential edges and heating elements 9, 16 are mounted at the front surfaces or rear surfaces of the thin sheets 8, 15. Further, the respective recessed parts of the stationary plate 2 and the moving platen 3 are connected and equipped with air supplying means.

Description

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

【０００１】[0001]

【産業上の利用分野】本発明は液晶表示板用ガラス基板
の加熱装置であって、詳しくはシール材を挟装した上下
のガラス基板をマーク合わせを行って貼り合わせすると
共に、仮止めした上下のガラス基板を所定のギャップま
でシール材を加圧して硬化させる加熱装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass substrate heating device for a liquid crystal display panel, and more specifically, it is a method for aligning the upper and lower glass substrates sandwiching a sealant to each other by marking them together, and temporarily fixing the upper and lower glass substrates. The heating device which pressurizes the glass substrate up to a predetermined gap and cures the sealing material.

【０００２】[0002]

【従来の技術】液晶表示板（ＬＣＤ）は、透明導電性電
極をコートした２枚のガラス基板間に数μｍのスペーサ
を用いて所定の間隔に保ち、シール材で区画した内側の
空間内に液晶を封入したもので、その２枚のガラス基板
は位置合わせマークによって狂いなく貼り合わせられて
いる。2. Description of the Related Art A liquid crystal display (LCD) is maintained at a predetermined distance between two glass substrates coated with a transparent conductive electrode by using a spacer having a thickness of several μm. Liquid crystal is sealed in, and the two glass substrates are stuck together without misalignment by alignment marks.

【０００３】ところで、液晶表示板を構成する２枚のガ
ラス基板は、その一方のガラス基板の上にスペーサを散
在し、他方のガラス基板の内面（一方のガラス基板と対
向する面）には熱硬化性樹脂のシール材が取り付けら
れ、そうした上下のガラス基板が貼り合わせ装置によっ
てマーク合わせを行って貼り合わせられると共に、上下
のガラス基板が分離しないように仮止めされる。そし
て、貼り合わせ仮止めされた２枚１組のガラス基板は加
圧、加熱処理して上下のガラス基板間のギャップをスペ
ーサの粒径までシール材を加圧して該シール材を硬化さ
せる。By the way, the two glass substrates constituting the liquid crystal display panel have spacers scattered on one of the glass substrates, and heat is applied to the inner surface of the other glass substrate (the surface facing the one glass substrate). A sealant made of a curable resin is attached, and the upper and lower glass substrates are bonded together by performing a mark alignment by a bonding device, and the upper and lower glass substrates are temporarily fixed so as not to be separated. Then, the pair of glass substrates temporarily bonded and bonded is pressurized and heat-treated to press the sealing material to the gap between the upper and lower glass substrates to the particle size of the spacer, thereby curing the sealing material.

【０００４】その従来のシール材を硬化させる装置は、
貼り合わせを完了した２枚１組のガラス基板を複数組積
み重ねると共に加圧して治具にセットし、それを加熱炉
に入れてシール材を加熱し硬化させるものである。[0004] The conventional device for curing the sealing material is as follows.
Plural sets of two glass substrates, which have been bonded together, are stacked on top of each other, pressed and set in a jig, which is placed in a heating furnace to heat and cure the sealing material.

【０００５】[0005]

【発明が解決しようとする課題】しかして、２枚１組の
ガラス基板を治具にセットして加熱炉に入れガラス基板
を加熱した場合、加熱による熱伝導はガラス基板の周囲
と中央部では温度差があり、熱膨張の差によって位置合
わせされている上下のガラス基板が水平方向に移動して
狂いが生じるといった問題点を有する。これをなくす為
に、加熱時間、加熱温度を調整しながら行っているが、
この場合は作業性が低下し、生産性に欠けるといった問
題点を有する。However, when a set of two glass substrates is set in a jig and placed in a heating furnace to heat the glass substrates, the heat conduction due to the heating is caused at the periphery and the center of the glass substrate. There is a problem in that there is a temperature difference, and the upper and lower glass substrates positioned by the difference in thermal expansion move in the horizontal direction, causing a disorder. In order to eliminate this, it is performed while adjusting the heating time and heating temperature,
In this case, there is a problem that workability is reduced and productivity is lacking.

【０００６】又、貼り合わせ仮止めされている２枚１組
のガラス基板は加熱によってシール材が溶融し、硬化さ
れるが、その加熱時に２枚１組のガラス基板は加圧して
ガラス基板間のギャップを所定のギャップ（スペーサの
粒径に相当する）にするが、その加圧はガラス基板全体
に均一に作用させることが困難であり、したがってギャ
ップを一定にすることが困難であるといった問題点を有
する。Further, the sealing material is melted and hardened by heating the pair of glass substrates temporarily bonded together by heating, but at the time of heating, the pair of glass substrates is pressed between the glass substrates. The gap is made to be a predetermined gap (corresponding to the particle size of the spacer), but it is difficult to apply the pressure uniformly to the entire glass substrate, and therefore it is difficult to make the gap constant. Have a point.

【０００７】本発明は上述したような従来の技術が有す
る問題点に鑑みてなされたもので、その目的とするとこ
ろは、ガラス基板の全面を均一に加熱できると共に、該
ガラス基板の加圧も均一な分布荷重として作用させるこ
とができる加熱装置を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and it is an object of the present invention to uniformly heat the entire surface of a glass substrate and to apply pressure to the glass substrate. An object of the present invention is to provide a heating device that can act as a uniform distributed load.

【０００８】[0008]

【課題を解決するための手段】上記の目的を達成する為
に本発明が講じた技術的手段は、二枚のガラス基板間に
介在された熱硬化性樹脂からなるシール材を加熱、加圧
して硬化させる加熱装置であって、位置合せし、且つ仮
止めされた２枚１組のガラス基板を挟着する一方の固定
定盤と、その固定定盤と対向して該定盤との間隔を広狭
可変すると共に、加圧手段で加圧される可動定盤とから
成り、その固定定盤と可動定盤は夫々ガラス基板と対向
する面に周囲縁を残して凹部を穿設し、その凹部の開口
を薄板で閉鎖すると共に、その薄板の周囲を前記周囲縁
に接着固定し、且つ前記薄板の表面又は裏面に発熱体を
取り付け、更に固定定盤と可動定盤の夫々の凹部には空
気供給手段を連結装備したことを特徴とする。上記の発
熱体としては絶縁物からなる薄板に導電部材を取り付け
た面状発熱体が効果的であるThe technical means taken by the present invention to achieve the above object is to heat and press a sealing material made of a thermosetting resin interposed between two glass substrates. A fixed platen for holding a pair of aligned and temporarily fixed glass substrates, and a space between the fixed platen and the fixed platen facing the fixed platen. The width and width of the platen are variable, and the platen is made up of a movable platen that is pressurized by a pressurizing means.The fixed platen and the movable platen each have a recess formed by leaving a peripheral edge on a surface facing the glass substrate. The opening of the concave portion is closed with a thin plate, the periphery of the thin plate is adhesively fixed to the peripheral edge, and a heating element is attached to the front surface or the back surface of the thin plate, and further, each of the fixed platen and the movable platen has a concave portion. The air supply means is connected and equipped. As the above-mentioned heating element, a planar heating element in which a conductive member is attached to a thin plate made of an insulating material is effective.

【０００９】固定定盤及び可動定盤に凹設した凹部を閉
鎖する薄板としては、板厚が30μｍ乃至 200μｍの金属
製薄板（例えばステンレス薄板）、好ましくは 100μｍ
のステンレス薄板、或いはヤング率の高い合成樹脂製薄
板（例えばポリカーボネート製薄板）等が挙げられる。
更に、上記した固定定盤及び可動定盤の周囲縁の側面に
は凹部内と連通させて空気供給手段が接続配管され、そ
の空気供給手段より送り込まれる空気によって凹部の開
口面を閉鎖する薄板を内部から加圧して膨出させ、ガラ
ス基板を加圧する時に緩衝作用が生じるようにしてあ
る。又、本発明に係る加熱装置はガラス基盤を水平状に
支持して定盤を垂直方向に上下させる縦型、或いはガラ
ス基板の平面を横方向に向け定盤を水平横方向に移動さ
せる横型とするなど何れでもよいものである。尚、横型
の場合は、ガラス基板を立てた状態で支持しなければな
らない為、少なくとも定盤の一方には該ガラス基板を保
持する真空吸着機構を装備する。The thin plate for closing the recesses formed in the fixed platen and the movable platen is a metal thin plate having a thickness of 30 μm to 200 μm (for example, a stainless steel plate), preferably 100 μm.
The stainless steel thin plate, the synthetic resin thin plate having a high Young's modulus (for example, a polycarbonate thin plate), or the like can be used.
Further, on the side surfaces of the peripheral edges of the fixed surface plate and the movable surface plate, air supply means is connected and connected to the inside of the recess, and a thin plate for closing the opening surface of the recess by air sent from the air supply means. The inside is pressurized and swelled so that a buffering action is generated when the glass substrate is pressurized. Further, the heating device according to the present invention includes a vertical type that horizontally supports a glass substrate and vertically moves a surface plate, or a horizontal type that horizontally moves a surface plate with a glass substrate flat. It does not matter which of them. In the case of the horizontal type, since the glass substrate must be supported in an upright state, at least one of the surface plates is provided with a vacuum suction mechanism for holding the glass substrate.

【００１０】[0010]

【作用】上記の手段によれば、加熱装置の固定定盤と可
動定盤が金属製の定盤本体に周囲縁を残して凹部が穿設
され、その凹部の開口面が薄板で閉鎖されると共に、そ
の薄板の縁が周囲縁に接着固定され、更にその薄板の表
面又は裏面に発熱体が設けられているため、２枚１組の
ガラス基板はその全面が均一に加熱され、それによりガ
ラス基板上における熱膨張に差が生じるのを解決でき
る。しかも、両定盤における凹部内には空気供給手段に
よって空気を送り込み薄板を膨出させることで太鼓の皮
の如くなり、該定盤は緩衝機能を備えた定盤となる。従
って、ガラス基板は緩衝作用を介して加圧され、それに
よりガラス基板には均一な分布荷重が与えられ、しかも
その荷重はガラス基板の面に対して垂直方向にのみ作用
し、２枚のガラス基板間のギャップは均一に形成され
る。According to the above-mentioned means, the fixed platen and the movable platen of the heating device are provided with a recess in the metal platen body leaving a peripheral edge, and the opening surface of the recess is closed with a thin plate. At the same time, the edge of the thin plate is adhered and fixed to the peripheral edge, and furthermore, a heating element is provided on the front or back surface of the thin plate. The difference in thermal expansion on the substrate can be solved. In addition, air is supplied into the recesses of both stools by air supply means to expand the thin plate, so that the slab becomes like a drum skin, and the stool becomes a stool having a buffer function. Therefore, the glass substrate is pressurized through a buffering action, whereby a uniform distributed load is applied to the glass substrate, and the load acts only in the direction perpendicular to the surface of the glass substrate, and the two glass plates are pressed. The gap between the substrates is formed uniformly.

【００１１】[0011]

【実施例】以下、本発明の一実施例を図面に基づき説明
すると、加熱装置Ａは機枠１と、その機枠１内の下側に
固定された固定定盤２と、その固定定盤２の上方に配置
された可動定盤３と、その可動定盤３を上下動させる駆
動手段４と、所定位置まで下降された可動定盤３を固定
定盤２側へ加圧し、固定定板２上に載せられた２枚１組
の貼り合わせ仮止めされたガラス基板ａ，ｂを加圧する
加圧手段５とで縦型に構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. A heating device A includes a machine frame 1, a fixed surface plate 2 fixed to the lower side of the machine frame 1, and a fixed surface plate thereof. 2, a movable platen 3 disposed above the movable platen 3, a driving means 4 for moving the movable platen 3 up and down, and a movable platen 3 lowered to a predetermined position, pressed against the fixed platen 2 side, and fixed platen. A vertical type is constituted by a pressurizing means 5 for pressurizing a pair of the two glass substrates a and b temporarily bonded together, which are placed on the substrate 2.

【００１２】機枠１内の下側に設置固定される固定定盤
２は、平面形状が矩形状をした金属製の定盤本体に周囲
縁６を残して所定深さの凹部７を穿設し、その凹部７の
開口部を薄板８で閉鎖すると共に、その薄板８の周囲は
前記周囲縁６に固定されている。そして、その薄板８の
表面には発熱体９が貼り付け固定されており、かつ定盤
本体の周囲縁６の側面には前記凹部７内部と連絡する通
孔10が開設され、その通孔10は空気供給手段に連結し、
密閉状の凹部７に空気を送り込んで前記薄板８を膨出し
得るようになっている。A fixed surface plate 2 installed and fixed below the machine frame 1 is provided with a recess 7 having a predetermined depth while leaving a peripheral edge 6 in a metal surface plate main body having a rectangular planar shape. The opening of the recess 7 is closed with a thin plate 8, and the periphery of the thin plate 8 is fixed to the peripheral edge 6. A heating element 9 is attached and fixed to the surface of the thin plate 8, and a through hole 10 communicating with the inside of the recess 7 is formed on the side surface of the peripheral edge 6 of the surface plate body. Is connected to the air supply means,
The thin plate 8 can be expanded by blowing air into the closed recess 7.

【００１３】凹部７を閉鎖する薄板８は板厚が30μ〜 2
00μ、好ましくは 100μのステンレス製薄板を用い、固
定定盤２と略同形状に成形し、その薄板８の周縁を定盤
本体の周囲縁６上面に溶接又は接着剤によって固定され
ている。薄板８の表面に貼り付け固定される発熱体９
は、耐熱性を有する絶縁物、例えばセラミック、石英、
合成樹脂材等の薄板（板厚 100μ〜 300μ）11に導電体
12例えば炭素を印刷した面状発熱体の形態に形成されて
おり、導電体12に電源が接続されて通電されることで該
導電体12が発熱するように構成されている。The thin plate 8 for closing the recess 7 has a thickness of 30 .mu.
A stainless steel thin plate of 00 μ, preferably 100 μ, is formed into the same shape as the fixed platen 2, and the peripheral edge of the thin plate 8 is fixed to the upper surface of the peripheral edge 6 of the platen body by welding or an adhesive. Heating element 9 attached and fixed to the surface of thin plate 8
Is an insulator having heat resistance, for example, ceramic, quartz,
Conductor on thin plate (sheet thickness 100μ ~ 300μ) 11 such as synthetic resin material
For example, the conductor 12 is formed in the form of a sheet heating element printed with carbon, and is configured such that when a power source is connected to the conductor 12 and energized, the conductor 12 generates heat.

【００１４】固定定盤２の上方に配置され鉛直方向に上
下動する可動定盤３は、前記した固定定盤２と同様、平
面形状が矩形状をした金属製の定盤本体に周囲縁13を残
して所定深さの凹部14を穿設し、その凹部14の開口部を
薄板15で閉鎖すると共に、その薄板15の周囲は前記周囲
縁13に固定されている。そして、その薄板15の表面には
発熱体16が貼り付け固定されており、かつ定盤本体の周
囲縁13の側面には前記凹部14内部と連絡する通孔17が開
設され、その通孔17は空気供給手段に連結し、密閉状の
凹部14に空気を送り込んで前記薄板15を膨出し得るよう
になっている。The movable platen 3 which is disposed above the fixed platen 2 and which moves up and down in the vertical direction includes a metal platen body having a rectangular planar shape and a peripheral edge 13 similar to the fixed platen 2 described above. , A recess 14 having a predetermined depth is formed, the opening of the recess 14 is closed with a thin plate 15, and the periphery of the thin plate 15 is fixed to the peripheral edge 13. A heating element 16 is attached and fixed to the surface of the thin plate 15, and a through hole 17 communicating with the inside of the recess 14 is formed on the side surface of the peripheral edge 13 of the surface plate body. Is connected to an air supply means so that the thin plate 15 can be bulged by sending air into the closed concave portion 14.

【００１５】凹部14を閉鎖する薄板15は板厚が30μ〜 2
00μ、好ましくは 100μのステンレス製薄板を用い、可
動定盤３と略同形状に成形し、その薄板15の周縁が定盤
本体の周囲縁13上面に溶接又は接着剤によって固定され
ている。薄板15の表面に貼り付け固定される発熱体16
は、耐熱性を有する絶縁物、例えばセラミック、石英、
合成樹脂材等の薄板（板厚 100μ〜 300μ）18に導電体
19例えば炭素を印刷した面状発熱体の形態に形成されて
おり、導電体19に電源が接続されて通電されることで該
導電体19が発熱するように構成されている。尚、固定定
盤２に装備される発熱体９及び可動定盤３に装備される
発熱体16はガラス基板の全面を均一に加熱し得るように
導電体が薄板に対して配設されることは言うまでもない
ことである。The thin plate 15 that closes the recess 14 has a plate thickness of 30 μ to 2 μm.
Using a thin stainless steel plate of 00μ, preferably 100μ, it is formed in substantially the same shape as the movable platen 3, and the periphery of the thin plate 15 is fixed to the upper surface of the peripheral edge 13 of the platen body by welding or an adhesive. Heating element 16 attached and fixed to the surface of thin plate 15
Is an insulator having heat resistance, for example, ceramic, quartz,
Conductor on thin plate (sheet thickness 100μ ~ 300μ) 18 such as synthetic resin material
For example, the conductor 19 is formed in the form of a sheet heating element printed with carbon, and is configured such that the power is connected to the conductor 19 and the conductor 19 generates heat when energized. The heating element 9 provided on the fixed surface plate 2 and the heating element 16 provided on the movable surface plate 3 must have conductors arranged on the thin plate so that the entire surface of the glass substrate can be heated uniformly. Needless to say.

【００１６】上記の如く構成された可動定盤３を上下動
させる駆動手段４は、機枠１の側面に鉛直状に固着した
ガイドレール20と、そのガイドレール20に一端が係合さ
れて片持ち状で上下動する支持枠21と、その支持枠21に
係合して該支持枠21を上下させる吊り持ち部材22と、そ
の吊り持ち部材22を繰り出し又は引き上げる巻き上げ機
23とで構成され、支持枠21の下面に前記した可動定盤３
が発熱体16を下側にして固定されている。従って、巻き
上げ機23を駆動させて吊り持ち部材22を繰り出せば支持
枠21は該吊り持ち部材22で保持された状態でガイドレー
ル20に沿い下降し、固定定盤２上に載せられている２枚
１組のガラス基板に接した後は吊り持ち部材22と支持枠
21との係合が解除され、可動定盤３は自由状態でガラス
基板の上に載る形となる。The driving means 4 for vertically moving the movable platen 3 constructed as described above includes a guide rail 20 fixed vertically to the side surface of the machine frame 1 and a one-side engagement with one end of the guide rail 20. A supporting frame 21 that moves up and down in a holding state, a hanging member 22 that engages with the supporting frame 21 to move the supporting frame 21 up and down, and a hoist that feeds out or lifts the hanging member 22
And the movable surface plate 3 on the lower surface of the support frame 21.
Are fixed with the heating element 16 on the lower side. Therefore, if the hoisting machine 23 is driven and the suspending member 22 is paid out, the support frame 21 is lowered along the guide rail 20 while being held by the suspending member 22, and is placed on the fixed surface plate 2. After contacting a set of glass substrates, the lifting member 22 and the support frame
The engagement with 21 is released, and the movable platen 3 comes to rest on the glass substrate in a free state.

【００１７】ガラス基板の上に載置された可動定盤３を
固定定盤２側へ加圧する加圧手段５は、機枠１の上部に
垂下取り付けたエアシリンダ24によって構成され、支持
枠21を介して加圧するようになっている。The pressurizing means 5 for pressing the movable platen 3 placed on the glass substrate toward the fixed platen 2 is constituted by an air cylinder 24 attached to the upper part of the machine frame 1, and a support frame 21. Pressurized via

【００１８】又、図６は固定定板２及び可動定板３に装
備した発熱体９，16の熱がガラス基板側に作用するよう
に該発熱体と反対側に断熱材25を取り付けた構造を示
し、その断熱材25は薄板８，15の裏側に貼り付け固定さ
れている。尚、発熱体９，16が薄板８，15の裏側に貼り
付け固定された構造の場合は、前記断熱材25は発熱体
９，16の裏側に貼り付けるようにする。FIG. 6 shows a structure in which a heat insulating material 25 is attached to the opposite side of the fixed heating plate 2 and the movable fixed plate 3 so that the heat of the heating elements 9 and 16 acts on the glass substrate side. The heat insulating material 25 is stuck and fixed to the back side of the thin plates 8 and 15. In the case of the structure in which the heating elements 9 and 16 are attached and fixed to the back sides of the thin plates 8 and 15, the heat insulating material 25 is attached to the back sides of the heating elements 9 and 16.

【００１９】上記の如く構成した加熱装置に供給される
２枚１組のガラス基板は前もって貼り合せ装置でガラス
基板ａ，ｂがマーク合せされて貼り合せられ、且つその
ガラス基板間には数μｍのスペーサ26が挿入されると共
に、ガラス基板の周囲に沿って熱硬化性樹脂から成るシ
ール材27が取り付けられ、両ガラス基板ａ，ｂはギャッ
プが約15μｍに加圧されて仮止め固定されている。そし
て、上記の２枚１組のガラス基板を加熱装置の固定定盤
２の上に載せ、次に駆動手段４を作動させて可動定盤３
を降下させ、該可動定盤３の発熱体16をガラス基板ａの
上面に接触させ、更に駆動手段４を作動させて吊り持ち
部材22を支持枠21から離し、可動定盤３が自由状態でガ
ラス基板ａの上に載るようにする。次に加圧手段５を作
動させて可動定盤３を押し下げ固定定盤２上のガラス基
板ａ，ｂを加圧すると同時に発熱体９，16に通電し、シ
ール材27をスペーサ26の粒径まで潰すと共に、該シール
材27を加熱して硬化させ、ガラス基板ａ，ｂ間のギャッ
プを約５μｍにする。その加熱処理は約 140℃〜 180℃
で10分間位である。ここで、固定定盤２及び可動定盤３
は上記したように凹部の開口面を薄板で閉鎖し、且つそ
の凹部に空気が送り込み封入された緩衝構造をなしてい
るため、ガラス基板ａ，ｂはエアーバッグで加圧される
かたちとなり、ガラス基板には均一な分布荷重が作用
し、シール材27は均一に潰され、その結果ガラス基板
ａ，ｂ間のギャップは一定に保たれ、高品質の製品が完
成される。尚、上記した実施例は縦型について説明した
が、本発明の加熱装置は横型でも良く、また本装置は１
台で使用しても勿論良いが、上記したように加熱処理の
時間が約10分間かかることもあって本装置を複数台（例
えば10台）環状に配置しチェーン等によって移動するよ
うにすれば作業能率、生産性を向上出来る利点を有す
る。The pair of glass substrates supplied to the heating device constructed as described above are bonded in advance with the glass substrates a and b being marked and bonded by a bonding device, and the gap between the glass substrates is several μm. The spacer 26 is inserted, and a sealing material 27 made of a thermosetting resin is attached along the periphery of the glass substrate. The gap between the two glass substrates a and b is pressurized to about 15 μm and temporarily fixed. I have. Then, the pair of glass substrates is placed on the fixed surface plate 2 of the heating device, and then the driving means 4 is operated to move the movable surface plate 3.
And the heating element 16 of the movable platen 3 is brought into contact with the upper surface of the glass substrate a. Further, the driving means 4 is operated to separate the hanging member 22 from the support frame 21, and the movable platen 3 is free. It is placed on the glass substrate a. Next, the pressurizing means 5 is operated to depress the movable platen 3 and pressurize the glass substrates a and b on the fixed platen 2, and at the same time, energize the heating elements 9 and 16 to make the sealing material 27 have a particle size of the spacer 26. The sealing material 27 is heated and hardened, and the gap between the glass substrates a and b is reduced to about 5 μm. The heat treatment is about 140 ℃ ~ 180 ℃
For about 10 minutes. Here, the fixed surface plate 2 and the movable surface plate 3
Has a buffer structure in which the opening surface of the concave portion is closed with a thin plate as described above, and air is sent into the concave portion so as to be sealed therein. A uniform distributed load acts on the substrate, and the sealing material 27 is uniformly crushed. As a result, the gap between the glass substrates a and b is kept constant, and a high quality product is completed. Although the above embodiment has been described as a vertical type, the heating device of the present invention may be a horizontal type, and
Of course, it may be used on a stand, but as described above, the heat treatment time may take about 10 minutes. Therefore, if the apparatus is arranged in a plurality of units (for example, 10 units) in a ring and moved by a chain or the like, It has the advantage of improving work efficiency and productivity.

【００２０】[0020]

【発明の効果】本発明の液晶表示板用ガラス基板の加熱
装置は請求項１に示す構成としたことにより、ガラス基
板を固定定盤と可動定盤との緩衝構造を介して加圧で
き、それによりガラス基板全体に均一な分布荷重を付与
できると共に、その荷重はガラス基板の面に対して垂直
方向にのみ作用し、、しかもガラス基板は均一に加熱さ
れるため上下ガラス基板の位置ずれを防止してギャップ
を一定に保って成形することが出来る。又、加熱は定盤
に備えた発熱体で行うため加熱が安定し、加熱時間を短
縮することができる。EFFECT OF THE INVENTION With the device for heating a glass substrate for a liquid crystal display plate according to the present invention, the glass substrate can be pressed through the buffer structure of the fixed platen and the movable platen by the constitution as set forth in claim 1. As a result, a uniform distributed load can be applied to the entire glass substrate, and the load acts only in the direction perpendicular to the surface of the glass substrate, and since the glass substrate is heated uniformly, the displacement of the upper and lower glass substrates is prevented. It can be prevented and the gap can be kept constant for molding. Further, since the heating is performed by the heating element provided on the surface plate, the heating is stabilized and the heating time can be shortened.

【００２１】又、請求項２に示すように発熱体を面状発
熱体とした場合はガラス基板の全面を均一に加熱するこ
とができ、それによって上下ガラス基板の位置ずれ発生
を防止でき、品質の安定した加工を行うことができる。When the heating element is a planar heating element as described in claim 2, the entire surface of the glass substrate can be heated uniformly, whereby the occurrence of displacement of the upper and lower glass substrates can be prevented, and the quality can be improved. The stable processing of can be performed.

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

【図１】本発明に係る加熱装置の一実施例を示す一部切
欠正面図である。FIG. 1 is a partially cutaway front view showing one embodiment of a heating device according to the present invention.

【図２】図１の円で囲んだ部分を拡大して示す断面図で
ある。FIG. 2 is an enlarged cross-sectional view showing a portion surrounded by a circle in FIG.

【図３】図１の（３）−（３）線に沿える拡大底面図で
ある。FIG. 3 is an enlarged bottom view taken along line (3)-(3) in FIG. 1;

【図４】可動定盤を降下させてガラス基板の上に載せた
状態を示す一部切欠正面図である。FIG. 4 is a partially cutaway front view showing a state where the movable platen is lowered and mounted on a glass substrate.

【図５】図４の状態から加圧手段を作動させた同一部切
欠正面図である。5 is a cutaway front view of the same part when the pressing means is operated from the state of FIG. 4;

【図６】定盤構造の他の実施例を示す拡大断面図であ
る。FIG. 6 is an enlarged cross-sectional view showing another embodiment of the surface plate structure.

【符号の説明】[Explanation of symbols]

Ａ…加熱装置 １…機枠 ２…固定定盤 ３…可動定盤 ４…駆動手段 ５…加圧手段 ６，13…周囲縁 ７，14…凹部 ８，15…薄板 ９，16…発熱体 11，18…絶縁物（薄板） 12，19…導電体 A: Heating device 1: Machine frame 2: Fixed surface plate 3: Movable surface plate 4: Driving means 5: Pressurizing means 6, 13 ... Peripheral edge 7, 14 ... Depression 8, 15 ... Thin plate 9, 16 ... Heating element 11 , 18… Insulator (thin plate) 12,19… Conductor

───────────────────────────────────────────────────── フロントページの続き (72)発明者 内山 一栄 東京都千代田区神田錦町２丁目９番地 信 越エンジニアリング株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuei Uchiyama 2-9 Kandanishikicho, Chiyoda-ku, Tokyo Shin-Etsu Engineering Co., Ltd.

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 二枚のガラス基板間に介在された熱硬化
性樹脂からなるシール材を加熱、加圧して硬化させる加
熱装置であって、位置合せし、且つ仮止めされた２枚１
組のガラス基板を挟着する一方の固定定盤と、その固定
定盤と対向して該定盤との間隔を広狭可変すると共に、
加圧手段で加圧される可動定盤とから成り、その固定定
盤と可動定盤は夫々ガラス基板と対向する面に周囲縁を
残して凹部を穿設し、その凹部の開口を薄板で閉鎖する
と共に、その薄板の周囲を前記周囲縁に固定し、且つ前
記薄板の表面又は裏面に発熱体を取り付け、更に固定定
盤と可動定盤の夫々の凹部には空気供給手段を連結装備
したことを特徴とする液晶表示板用ガラス基板の加熱装
置。1. A heating device for heating, pressurizing and curing a sealing material made of a thermosetting resin interposed between two glass substrates, which is aligned and temporarily fixed.
One fixed surface plate that sandwiches a set of glass substrates, and the distance between the fixed surface plate and the fixed surface plate facing the fixed surface plate can be varied widely,
The fixed surface plate and the movable surface plate each have a peripheral edge left on the surface opposed to the glass substrate, and a concave portion is formed, and the opening of the concave portion is formed by a thin plate. Closed, the periphery of the thin plate was fixed to the peripheral edge, and a heating element was attached to the front surface or the back surface of the thin plate, and further, air supply means was connected to each of the concave portions of the fixed platen and the movable platen. An apparatus for heating a glass substrate for a liquid crystal display panel, comprising: 【請求項２】 上記の発熱体が絶縁物からなる薄板に導
電部材を取り付けた面状発熱体である請求項１記載の液
晶表示板用ガラス基板の加熱装置。2. The heating device for a glass substrate for a liquid crystal display plate according to claim 1, wherein the heating element is a planar heating element in which a conductive member is attached to a thin plate made of an insulating material.
JP6247608A 1994-10-13 1994-10-13 Glass substrate heating device for liquid crystal display panel Expired - Fee Related JP2665319B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP6247608A JP2665319B2 (en) 1994-10-13 1994-10-13 Glass substrate heating device for liquid crystal display panel
KR1019950035363A KR960015006A (en) 1994-10-13 1995-10-13 Method of heat-gluing a glass substrate for liquid crystal display panel and apparatus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6247608A JP2665319B2 (en) 1994-10-13 1994-10-13 Glass substrate heating device for liquid crystal display panel

Publications (2)

Publication Number Publication Date
JPH08110504A true JPH08110504A (en) 1996-04-30
JP2665319B2 JP2665319B2 (en) 1997-10-22

Family

ID=17166043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6247608A Expired - Fee Related JP2665319B2 (en) 1994-10-13 1994-10-13 Glass substrate heating device for liquid crystal display panel

Country Status (2)

Country Link
JP (1) JP2665319B2 (en)
KR (1) KR960015006A (en)

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