JP4381624B2

JP4381624B2 - Display panel joining apparatus and method

Info

Publication number: JP4381624B2
Application number: JP2001104501A
Authority: JP
Inventors: 章博山本; 栄小林
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 2001-04-03
Filing date: 2001-04-03
Publication date: 2009-12-09
Anticipated expiration: 2021-04-03
Also published as: JP2002304132A

Description

【０００１】
【発明の属する技術分野】
本発明は、例えばプラズマディスプレイパネルや液晶パネルのような表示パネルにフィルム状の基板を位置合わせして接合する表示パネル用接合装置、及び該接合装置にて実行される接合方法に関する。
【０００２】
【従来の技術】
図８に示すように、例えばガラス板のような透明な基板３ａ上の中央部分に、例えばプラズマ表示部３ｂを設けたＰＤＰ（プラズマディスプレイパネル）３が存在する。該ＰＤＰ３において、上記表示部３ｂが存在しない、基板３ａの側縁部３ｃには、表示部３ｂを動作させるための電力や信号を供給するフィルム状の基板、つまりＦＰＣ（フィルムプリントサーキット）２が接合される。
上記側縁部３ｃにおけるＦＰＣ接合場所へＦＰＣ２を接合させるため、以下の動作が実行される。即ち、図９に示すように、ＰＤＰ３の側縁部３ｃに設けられているパネル側マークをカメラ５ｂにて撮像し認識し、一方、ＦＰＣ２に設けられているＦＰＣ側マークをカメラ５ａにて撮像し認識する。その後、上記接合動作のため、ＰＤＰ３の側縁部３ｃを支持するパネル支持台１０が上記側縁部３ｃの真下まで移動する。尚、該移動に応じて上記カメラ５ｂも移動する。そして、ＦＰＣ２を保持しているノズル状のＦＰＣ保持部８を、上記パネル側マーク及び上記ＦＰＣ側マークの認識結果に基づいて、図示するように互いに直交するＸ，Ｙ方向、及び保持部８の軸回り方向に移動させてＦＰＣ２の位置補正をして、所定の上記ＦＰＣ接合場所にＦＰＣ２を接合する。
【０００３】
又、図１０に示すように、ＦＰＣ２を上記側縁部３ｃに接合するとき、側縁部３ｃはパネル支持台１０にて下方より支持され、ＦＰＣ２はＦＰＣ保持部８にて側縁部３ｃに加熱、押圧される。このとき、図９に示すパネル支持台１０が上記側縁部３ｃより外側に配置されて、つまりパネル支持台１０と側縁部３ｃとがずれて配置されてＰＤＰ３が保持されたとき、側縁部３ｃは破損する。よって、パネル支持台１０は側縁部３ｃより内側でＰＤＰ３を保持する。
【０００４】
【発明が解決しようとする課題】
しかしながら、図９に示すように、従来、上記ＦＰＣ側マークを撮像する上記カメラ５ａの配置位置と、上記パネル側マークを撮像する上記カメラ５ｂの配置位置とは異なっている。上記ＦＰＣ側マークがカメラ５ａにて撮像された後、ＦＰＣ２を保持している上記ＦＰＣ保持部８を接合のため上記側縁部３ｃまで移動させるが、熱の影響により上記カメラ５ａとカメラ５ｂとの間の距離が変化する。よって、上記カメラ５ａと上記カメラ５ｂとの初期の設置距離と、上記認識動作に基づいて求まる補正用距離とに基づいて決定した移動距離にて上記ＦＰＣ保持部８を移動させても、ＦＰＣ保持部８の移動機構をμｍのオーダーの精度にて移動させるのは困難である。
又、上記側縁部３ｃへＦＰＣ２を接合した後の状態を確認することは従来不可能であり、接合位置ずれをチェックできなかった。
又、図１０から明らかなように、パネル支持台１０は、ＦＰＣ２のサイズに応じて変更する必要がある。よって、変更の度に、ＦＰＣ保持部８のＦＰＣ接触面８ａと、パネル支持台１０のパネル支持面１０ａとの、±５μｍの平行度を確認する必要があり、必要に応じて平行度調整を行なう手間があった。
本発明はこのような問題点を解決するためになされたもので、従来に比べて表示パネルと被装着体との接合品質を向上可能な表示パネル用接合装置、及び該表示パネル用接合装置を使用した接合方法を提供することを目的とする。
【０００５】
【課題を解決するための手段】
本発明の第１態様における表示パネル用接合装置は、表示パネルを構成する基板の側縁部を支持するパネル支持部材と、
上記側縁部に接合される被接合体を保持する保持部材を有し、かつ上記表示パネルの上記側縁部が上記パネル支持部材上に載置された後上記被接合体を上記側縁部に押圧して上記側縁部へ上記被接合体を接合する被接合体保持装置と、
上記被接合体保持装置に保持された上記被接合体の外形を撮像する被接合体用カメラと、
上記側縁部が上記パネル支持部材に載置されかつ上記被接合体が上記側縁部に近接して配置されたとき、上記側縁部に設けたパネル側マーク及び上記被接合体に設けた被接合体側マークを一つの撮像視野にて撮像する撮像カメラと、
上記被接合体用カメラから得た上記被接合体の外形撮像情報にて上記被接合体の端面と上記保持部材の端面とを一致させる動作制御を上記被接合体保持装置に対して行なうとともに、上記撮像カメラによる撮像にて得た撮像情報に基づいて上記被接合体の位置補正をして上記被接合体を上記側縁部に接合させる動作制御を上記被接合体保持装置に対して行なう制御装置と、
を備えたことを特徴とする。
【０００６】
又、上記パネル支持部材上に載置された上記側縁部の厚み方向において、上記撮像カメラは上記パネル支持部材に対向して配置され、上記被接合体保持装置に備わり上記被接合体を保持する保持部材は、上記撮像カメラと上記パネル支持部材との間に配置させることができる。
【０００７】
又、上記保持部材にて保持している上記被接合体を上記側縁部に押圧しているときに、上記被接合体側マーク及び上記パネル側マークを上記撮像カメラに同一視野内で撮像させる撮像用窓を上記保持部材は有することができる。
【０００８】
又、上記表示パネルの上記基板、上記被接合体、及び上記パネル支持部材は透光性材料にてなるとき、上記被接合体側マーク及び上記パネル側マークを上記撮像カメラにて撮像するために上記パネル支持部材を通過して上記撮像カメラへ入射する光を発する照明装置をさらに備えることができる。
【０００９】
又、上記側縁部に沿って上記パネル支持部材を移動させる支持部材用移動装置をさらに備えることができる。
【００１０】
さらに本発明の第２態様における表示パネル用接合方法は、表示パネルを保持して移動し該表示パネルの基板の側縁部をパネル支持部材上に配置し、
上記側縁部に接合される被接合体の外形を撮像して該外形撮像情報にて上記被接合体の端面と上記被接合体を保持する保持部材の端面とが一致するように位置決めし、その後、上記パネル支持部材上に配置された上記側縁部に近接して上記被接合体を配置し、
上記被接合体が上記側縁部に近接して配置されたとき、上記側縁部に設けたパネル側マーク及び上記被接合体に設けた被接合体側マークを一つの撮像視野にて撮像し、
撮像結果に基づいて上記被接合体の位置補正をした後、上記被接合体を上記側縁部に接合する、ことを特徴とする。
【００１１】
上記第２態様において、上記側縁部への上記被接合体の接合中にて、上記パネル側マーク及び上記被接合体側マークを一つの撮像視野にて撮像することができる。
【００１２】
【発明の実施の形態】
本発明の実施形態である、表示パネル用接合装置、及び該接合装置にて実行される表示パネル用接合方法について、図を参照しながら以下に説明する。尚、各図において同じ構成部分については同じ符号を付している。又、表示パネルの一例として、本実施形態では、例えばガラスのような透光性材料にてなる基板に表示部を設けた、例えば上記ＰＤＰ３やＬＣＤ（液晶ディスプレイ）が相当する。又、上記表示パネルに接合される被接合体の一例として、本実施形態では、例えば図２に示すように、上記ＦＰＣ２を使用する。
【００１３】
図２に示すように上記表示パネル用接合装置１０１は、大きく分けて、ＡＣＦ貼付装置１１０と、仮圧着装置１２０と、本圧着装置１３０と、パネル保持装置１４０と、パネル搬送装置１５０と、制御装置１８０とを備え、パネル搬送装置１５０にて搬送方向１５５に上記ＰＤＰ３を搬送して、ＰＤＰ３へのＡＣＦ（異方性導電フィルム）の貼付、該ＡＣＦ上への上記ＦＰＣ２の仮圧着、さらにＰＤＰ３にＦＰＣ２を本圧着して接合する。尚、上記ＡＣＦは、導電性粒子を含む粘着テープであって、ＰＤＰ３と上記ＦＰＣ２との間に介在させてＦＰＣ２をＰＤＰ３へ加熱押圧することで、上記導電性粒子にてＦＰＣ２の電極とＰＤＰ３の電極とを電気的に接続する。該ＡＣＦについて、図４及び図５では、符号１１１を付している。
【００１４】
上記ＡＣＦ貼付装置１１０は、透光性材料にてなる基板３ａに表示部３ｂを設けたＰＤＰ３の側縁部３ｃであって上記ＦＰＣ２が接合される領域に上記ＡＣＦを貼付する装置である。上記仮圧着装置１２０は、ＡＣＦ貼付装置１１０にて貼付された上記ＡＣＦ上に上記ＦＰＣ２を仮圧着する装置であり、詳しくは後述する。上記本圧着装置１３０は、仮圧着装置１２０にて上記ＡＣＦ上に仮圧着された上記ＦＰＣ２を本圧着してＦＰＣ２を上記側縁部３ｃに接合する装置であり、本実施形態では生産タクト向上のため図示するように搬送方向１５５に沿って本圧着装置１３１と本圧着装置１３２の２台設置されている。
上記パネル保持装置１４０は、上記ＡＣＦ貼付装置１１０、上記仮圧着装置１２０、上記本圧着装置１３１、１３２のそれぞれに対応して設置され、パネル搬送装置１５０にて搬送されてくるＰＤＰ３について上記表示部３ｂに対向する裏面を吸着保持する吸引装置１４２と、搬送方向１５５、該搬送方向１５５に直交する方向１５６、及び保持されているＰＤＰ３の厚み方向１５７に沿う中心軸１６５の軸回り方向１５８に保持しているＰＤＰ３を移動して上記各装置１１０、１２０、１３１、１３２におけるＰＤＰ３の位置決めを行なう移動装置１４１とを備える。上記移動装置１４１及び吸引装置１４２は、制御装置１８０に接続され動作制御される。
【００１５】
上記仮圧着装置１２０について説明する。仮圧着装置１２０は、大きく分けて、パネル支持装置１２１と、被接合体保持装置１２２と、撮像カメラ１２３とを備え、さらに、図２に示すようにＦＰＣ２の供給装置１２４を設けることもできる。
上記パネル支持装置１２１は、図５に示すように、パネル支持部材１２１１と、移動装置１２１２と、照明装置１２１３とを備える。上記パネル支持部材１２１１は、上記照明装置１２１３に含まれる複数のＬＥＤ（発光ダイオード）１２１４を収納する基台１２１５上に設置された、例えば石英等にてなる透光性を有する部材であり、ＰＤＰ３の上記側縁部３ｃをその裏面３ｄ側から支持する平坦な支持面１２１１ａを有する。
移動装置１２１２は、上記基台１２１５を上記搬送方向１５５及び上記直交方向１５６に移動させる装置であり、図１に示すように、本実施形態ではモータにてなる駆動源１２１６ａを有し搬送方向１５５に上記パネル支持部材１２１１を移動させる第１ボールネジ機構と、該第１ボールネジ機構を設け、本実施形態ではモータにてなる駆動源１２１７ａを有し直交方向１５６に上記パネル支持部材１２１１を移動させる第２ボールネジ機構１２１７とを備える。上記駆動源１２１６ａ及び駆動源１２１７ａは、制御装置１８０に接続され動作制御される。
上記照明装置１２１３は、ＰＤＰ３上に記されているパネル側マークと、ＦＰＣ２上に記されている被接合体側マークとを撮像カメラ１２３にて撮像するための光を発する装置であり、制御装置１８０にて制御されて上記ＬＥＤ１２１４の発光を制御する。ＬＥＤ１２１４から発せられた光は、上記パネル支持部材１２１１を通り、さらにＰＤＰ３及びＦＰＣ２を通過して撮像カメラ１２３に至る。
【００１６】
上記被接合体保持装置１２２は、ＦＰＣ２を保持する保持部材１２２１と、該保持部材１２２１を上記搬送方向１５５及び上記直交方向１５６に移動させる移動装置１２２２と、上記保持部材１２２１にＦＰＣ２を吸着保持させるための吸引装置１２２３と、ＦＰＣ２を保持している保持部材１２２１を上記厚み方向１５７に移動させる押圧装置１２２４と、ＦＰＣ２とＰＤＰ３とを仮圧着させるときの熱を発する加熱装置１２２７とを備える。又、上記移動装置１２２２、上記吸引装置１２２３、上記押圧装置１２２４、及び加熱装置１２２７は、制御装置１８０に接続され動作制御される。
上記保持部材１２２１は、図５に示すように、ＦＰＣ２の少なくとも側縁部を保持する大きさにてなる部材である。又、上述のように、保持部材１２２１にて保持されているＦＰＣ２は、押圧装置１２２４にてＰＤＰ３の側縁部３ｃに押圧されるが、このときのＦＰＣ２とＰＤＰ３との接合状態を図６に示すように確認可能とするため、保持部材１２２１には、該保持部材１２２１を貫通する撮像用窓１２２１ａを設けている。該撮像用窓１２２１ａを設けることで、図６に示すように、接合中において、ＦＰＣ２に記されている被接合体側マーク２ｃと、上記側縁部３ｃに記されているパネル側マーク３ｅとの位置関係、つまりＦＰＣ２とＰＤＰ３との接合状態を上記撮像カメラ１２３による一つの視野内に撮像可能となる。
又、保持部材１２２１には、上記吸引装置１２２３につながる複数の吸引用開口を有し、保持面１２２１ｂにＦＰＣ２を吸着可能である。
【００１７】
このような保持部材１２２１は、図１に示すように上記押圧装置１２２４に取り付けられている。該押圧装置１２２４は、本実施形態ではモータにてなる駆動源１２２４ａを有する押圧用ボールネジ機構１２２４ｂを有し、上記厚み方向１５７へ保持部材１２２１を移動させる。上記駆動源１２２４ａは、制御装置１８０にて動作制御される。
上記移動装置１２２２は、本実施形態ではモータにてなる第１駆動源１２２２ａを有し、上記押圧用ボールネジ機構１２２４ｂを設置したベース板１２２５が取り付けられた搬送方向用ボールネジ機構１２２２ｂと、本実施形態ではモータにてなる第２駆動源１２２２ｃを有し、搬送方向用ボールネジ機構１２２２ｂを設置した台板１２２６が取り付けられた直交方向用ボールネジ機構１２２２ｄとを備える。尚、直交方向用ボールネジ機構１２２２ｄは、当該仮圧着装置１２０を構成する架台１２５上に設置される。上記第１駆動源１２２２ａ及び第２駆動源１２２２ｃは、制御装置１８０に接続され動作制御される。よって、搬送方向用ボールネジ機構１２２２ｂの第１駆動源１２２２ａを動作させることで上記ベース板１２２５を搬送方向１５５へ移動させることができ、さらに直交方向用ボールネジ機構１２２２ｄの第２駆動源１２２２ｃを動作させることで上記台板１２２６を直交方向１５６へ移動させることができる。したがって、これら搬送方向用ボールネジ機構１２２２ｂ及び直交方向用ボールネジ機構１２２２ｄにて、押圧装置１２２４を搬送方向１５５及び直交方向１５６へ移動させることができる。
【００１８】
上記撮像カメラ１２３は、図４及び図５に示すように、ＰＤＰ３の側縁部３ｃが上記パネル支持部材１２１１上に載置され、かつ上記保持部材１２２１に保持されたＦＰＣ２が移動装置１２２２にて上記側縁部３ｃに近接して配置されたとき、側縁部３ｃに設けたパネル側マーク３ｅ及びＦＰＣ２に設けた被接合体側マーク２ｃを一つの撮像視野にて撮像するカメラである。図４に示すように、本実施形態では、例えば上記パネル側マーク３ｅは搬送方向１５５に沿ってそれぞれ２箇所で、かつ互いに離れて記されている。これは、被接合体側マーク２ｃについても同様である。よって、一つの撮像カメラでは、例えばパネル側マーク３ｅ−１とパネル側マーク３ｅ−２とを同一視野にて撮像することはできないので、本実施形態では、搬送方向１５５に沿って２台の撮像カメラ、撮像カメラ１２３−１、１２３−２を、それぞれ上記架台１２５に設置している。
さらに本実施形態では、各撮像カメラ１２３−１、１２３−２は、搬送方向１５５に沿って可動なように、カメラ移動装置１２６−１，１２６−２をそれぞれ備えている。よって、例えばパネル側マーク３ｅ−１とパネル側マーク３ｅ−２との間の距離が変化した場合にも撮像可能である。
【００１９】
又、これら２台の撮像カメラ１２３−１、１２３−２と、ＦＰＣ２を保持する保持部材１２２１とは、図１及び図５に示すように、上記搬送方向１５５において、２台の撮像カメラ１２３−１、１２３−２の間に保持部材１２２１が配置され、かつ厚み方向１５７において保持部材１２２１の上方に各撮像カメラ１２３−１、１２３−２が配置される位置関係を有する。よって、上述のようにＦＰＣ２がＰＤＰ３の側縁部３ｃに近接して配置されたとき、図４に示すように、パネル側マーク３ｅ−１及び被接合体側マーク２ｃ−１は、撮像カメラ１２３−１による一つの撮像視野１２３３ａにて撮像可能であり、パネル側マーク３ｅ−２及び被接合体側マーク２ｃ−２は、撮像カメラ１２３−２による一つの撮像視野１２３３ｂにて撮像可能である。尚、図４に示すように、例えば撮像視野１２３３ａにおける被接合体側マーク２ｃ−１は、上記撮像用窓１２２１ａを介して撮像される。
【００２０】
上記ＦＰＣ供給装置１２４は、図２に示すようにＦＰＣ収納部１２４１より搬送装置１２４２にて移載されるＦＰＣ２を載置し、上記直交方向１５６へ移動して上記保持部材１２２１へＦＰＣ２を受け渡す受渡装置１２４３を有する。該受渡装置１２４３は、上記移動装置１２２２の直交方向用ボールネジ機構１２２２ｄの中央部でその下方に設置され、例えばモータにてなり制御装置１８０にて動作制御される駆動部１２４４にて動作される。
【００２１】
又、当該仮圧着装置１２０には、図３に示すように、上記受渡装置１２４３に移載されたＦＰＣ２が受渡装置１２４３にて待機位置１２７に搬送されたとき、ＦＰＣ２の外形を撮像するＦＰＣ用カメラ１２７１と、ＦＰＣ２を間に挟みＦＰＣ用カメラ１２７１に対向して配置されＦＰＣ２の撮像用の光を発する照明装置１２７２とをさらに備える。尚、図３は、上記受渡装置１２４３、ＦＰＣ用カメラ１２７１、照明装置１２７２、及び被接合体保持装置１２２部分を図示したもので、仮圧着装置１２０の全ての構成部分を図示していない。ＦＰＣ用カメラ１２７１及び照明装置１２７２は、制御装置１８０に接続され、動作制御される。よって、待機位置１２７にＦＰＣ２が配置されたとき、照明装置１２７２からの投光によりＦＰＣ用カメラ１２７１にてＦＰＣ２の外形が撮像される。該撮像後、被接合体保持装置１２２の保持部材１２２１は、受渡装置１２４３に載置されているＦＰＣ２を吸着保持するが、該吸着保持動作のために制御装置１８０は、ＦＰＣ２の端面２ｂに、上記保持部材１２２１の端面１２２１ｃが一致するように、ＦＰＣ２の上記外形撮像情報に基づいて被接合体保持装置１２２の移動装置１２２２及び押圧装置１２２４の動作制御を行なう。尚、上記端面２ｂと、上記端面１２２１ｃとを一致させる理由は、図４に示すように一つの撮像視野１２３３にてパネル側マーク３ｅ及び被接合体側マーク２ｃを撮像するときに保持部材１２２１の端面１２２１ｃをＦＰＣ２の端面２ｂに一致させることで余計な端面１２２１ｃの画像を出さないため、並びにＦＰＣ２をＰＤＰ３に接合するときにＦＰＣ２の端面２ｂ付近も確実に押圧させるためである。
【００２２】
以上のように構成される仮圧着装置１２０を有する表示パネル用接合装置１０１の動作について以下に説明する。以下の各動作における動作制御は、制御装置１８０にて実行される。尚、パネル搬送装置１５０によるＰＤＰ３の搬送動作、パネル搬送装置１５０にて搬送されてきたＰＤＰ３のパネル保持装置１４０による位置決め動作、ＡＣＦ貼付装置１１０によるＰＤＰ３の側縁部３ｃへのＡＣＦの貼付動作、及び本圧着装置１３０による上記側縁部３ｃへのＦＰＣ２の本圧着動作については、従来の表示パネル用接合装置における各動作と基本的に類似するので、ここでの詳しい説明は省略する。よって、以下では、仮圧着装置１２０の動作について詳しく説明する。
【００２３】
ＡＣＦ貼付装置１１０にて、ＰＤＰ３の側縁部３ｃへＡＣＦ１１１が貼付されたＰＤＰ２は、パネル搬送装置１５０にて次段の仮圧着装置１２０へ搬入され、仮圧着装置１２０に備わるパネル保持装置１４０にて吸着保持される。該保持状態を維持してパネル保持装置１４０の移動装置１４１により、図５に示すように、ＰＤＰ３の裏面３ｄであって上記側縁部３ｃの内、ＦＰＣ２が押圧される領域に対応する部分が、仮圧着装置１２０に備わるパネル支持装置１２１のパネル支持部材１２１１の支持面１２１１ａに載置される。
【００２４】
一方、ＦＰＣ２は、上記ＦＰＣ供給装置１２４のＦＰＣ収納部１２４１より搬送装置１２４２にて受渡装置１２４３に移載され、該受渡装置１２４３にて上記待機位置１２７まで搬送される。待機位置１２７に搬送されたＦＰＣ２は、ＦＰＣ用カメラ１２７１にてその外形が撮像され、上述のように、該撮像情報に基づきＦＰＣ２の端面２ｂに、上記保持部材１２２１の端面１２２１ｃが一致するように、上記被接合体保持装置１２２の移動装置１２２２及び押圧装置１２２４にて保持部材１２２１が移動される。上記端面２ｂと端面１２２１ｃとの位置決め後、保持部材１２２１をＦＰＣ２に接触させ、保持部材１２２１に接続されている上記吸引装置１２２３にてＦＰＣ２の吸着保持を行なう。保持部材１２２１がＦＰＣ２を保持した後、上記押圧装置１２２４及び移動装置１２２２が動作され、図４に示すように、上記パネル支持部材１２１１上に載置されているＰＤＰ３の側縁部３ｃに記されるパネル側マーク３ｅと、ＦＰＣ２の被接合体側マーク２ｃとが同一の撮像視野１２３３に収まるように、保持部材１２２１は移動され、上記側縁部３ｃに対してＦＰＣ２を近接させる。
【００２５】
上記近接動作後、撮像カメラ１２３−１、１２３−２のそれぞれにて、撮像視野１２６−１，１２６−２内に上記パネル側マーク３ｅと被接合体側マーク２ｃとを収めた状態にて撮像を行なう。該撮像後、上記パネル側マーク３ｅと、被接合体側マーク２ｃとが例えば図６に示すように互いに対応して配置されるように、上記撮像情報に基づいてＦＰＣ２の位置補正量を求め、該位置補正量に基づいて被接合体保持装置１２２の移動装置１２２２が移動し、その後、押圧装置１２２４が動作してＰＤＰ３の側縁部３ｃにＦＰＣ２を仮接合させる。
又、接合中においても、ＦＰＣ２の保持部材１２１１に設けた撮像用窓１２２１ａを介して図６に示すように上記パネル側マーク３ｅ及び被接合体側マーク２ｃを撮像することもでき、ＦＰＣ２とＰＤＰ３との位置ずれを検出することができる。
【００２６】
本実施形態では、上述したように、ＰＤＰ３の側縁部３ｃとＦＰＣ２とが近接可能なように被接合体保持装置１２２の保持部材１２２１を配置し、かつ上記保持部材１２２１の上方に撮像カメラ１２３−１、１２３−２を配置したことから、ＰＤＰ３に対するＦＰＣ２の接合前において、上記厚み方向１５７に沿って撮像カメラ１２３−１、１２３−２のそれぞれの撮像視野１２６−１，１２６−２内に上記パネル側マーク３ｅと被接合体側マーク２ｃとの両方を収めることができる。したがって、ＰＤＰ３及びＦＰＣ２は、同一のカメラで一撮像視野にて撮像可能な程度に近接していることから、撮像後、接合のため、ＦＰＣ２をＰＤＰ３へ移動させるときの移動量は、従来に比べて格段に短縮される。よって、上記一撮像視野内での撮像情報に基づきＦＰＣ２の位置補正を行なうによる位置補正精度の向上、及び上記移動量の低減により、ＦＰＣ２をμｍのオーダーの精度にて移動させることができ、ＰＤＰ３とＦＰＣ２との接合精度、つまり接合品質を従来に比して向上させることができる。
【００２７】
又、接合中においても撮像が可能であるので、接合中におけるＰＤＰ３に対するＦＰＣ２の位置ずれをチェックすることができる。
【００２８】
さらに、パネル支持部材１２１１は、移動装置１２１２にて上記搬送方向１５５及び直交方向１５６に移動可能な構造としたことから、ＰＤＰ３及びＦＰＣ２の種類が変わることで、ＰＤＰ３及びＦＰＣ２の大きさが変わったときでも、図７に示すように、パネル支持部材１２１１を搬送方向１５５に移動させることができる。よって、上記種類変更毎に、パネル支持部材１２１１を交換する必要はない。又、パネル支持部材１２１１の配置位置を制御しながら移動可能としたことから、図７に点線で示すように、ＰＤＰ３の端面３ｆを超えてパネル支持部材１２１１を配置することを防止することができる。
【００２９】
上述のようにしてＦＰＣ２が仮接合されたＰＤＰ３は、パネル搬送装置１５０にて次段の本圧着装置１３０に搬送され、ＦＰＣ２の本圧着が行なわれる。そして、ＦＰＣ２が本圧着されたＰＤＰ３は、再びパネル搬送装置１５０にて次工程へ搬送される。
【００３０】
【発明の効果】
以上詳述したように、本発明の第１態様の表示パネル用接合装置、及び第２態様の表示パネル用接合方法によれば、撮像カメラ、被接合体保持装置及び制御装置を備え、表示パネルの側縁部のパネル側マーク及び被接合体に設けた被接合体側マークを上記撮像カメラにて一つの撮像視野にて撮像し、該撮像情報に基づいて被接合体の位置補正を行ない表示パネルへ接合させる。よって、表示パネル及び被接合体は、上記被接合体保持装置により上記撮像カメラの一撮像視野にて撮像可能な程度に近接させることから、撮像後、接合のため、被接合体を表示パネルへ移動させるときの移動量は、従来に比べて格段に短縮される。よって、上記一撮像視野内での撮像情報に基づき被接合体の位置補正を行なうことによる位置補正精度の向上、及び上記移動量の低減により、表示パネルと被接合体との接合精度、即ち接合品質を従来に比して向上させることができる。
【００３１】
上記表示パネルの厚み方向において、上記撮像カメラはパネル支持部材に対向して配置し、被接合体の保持部材を、上記撮像カメラと上記パネル支持部材との間に配置することで、上述の効果を容易に奏することが可能となる。
【００３２】
さらに、上記保持部材に撮像用窓を有することで、接合中においても上記撮像用窓を通して表示パネルと被接合体との接合状態を上記撮像カメラにて撮像し確認することができる。
【００３３】
さらに、パネル支持部材を通過して上記撮像カメラへ入射する光を発する照明装置をさらに備えることで、上記表示パネルの厚み方向において上記撮像カメラをパネル支持部材に対向して配置した状態において、表示パネルのパネル側マーク及び被接合体の被接合体マークを鮮明に撮像することができる。
【００３４】
さらに、支持部材用移動装置を備えたことで、表示パネルや被接合体の種類が変わり大きさが変化したときでも、該変化に対応してパネル支持部材を移動させることができる。よって、上記種類の変更毎にパネル支持部材を変更する必要がなく、パネル支持部材と被接合体の保持部材との平行度を調整する必要はない。
【図面の簡単な説明】
【図１】本発明の実施形態における表示パネル用接合装置に備わる仮圧着装置の斜視図である。
【図２】本発明の実施形態における表示パネル用接合装置の全体を示す斜視図である。
【図３】図１に示す仮圧着装置の側面図である。
【図４】図１に示す仮圧着装置において、ＰＤＰのパネル側マークとＦＰＣの被接合体側マークとを一つの撮像視野にて撮像している状態を示す図である。
【図５】図４に示す状態において、撮像カメラ、パネル支持部材、保持部材の配置関係を示す図である。
【図６】図１に示す仮圧着装置において、ＰＤＰにＦＰＣを接合している状態を示す図である。
【図７】図１に示す仮圧着装置において、パネル支持部材が移動することを説明するための図である。
【図８】表示パネルに被接合体を取り付けた状態を示す図である。
【図９】従来の仮圧着装置において、ＰＤＰにＦＰＣを接合させる動作を説明するための図である。
【図１０】従来の仮圧着装置において、ＰＤＰにＦＰＣを接合させている状態を示す図である。
【符号の説明】
２…ＦＰＣ、２ｃ…被接合体側マーク、３…ＰＤＰ、３ａ…基板、
３ｃ…側縁部、３ｅ…パネル側マーク、
１０１…表示パネル用接合装置、１２０…仮圧着装置、
１２２…被接合体保持装置、１２３…撮像カメラ、
１２１１…パネル支持部材、１２１２…移動装置、１２１３…照明装置、
１２２１…保持部材、１２２１ａ…撮像用窓。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a display panel joining apparatus that aligns and joins a film-like substrate to a display panel such as a plasma display panel or a liquid crystal panel, and a joining method executed by the joining apparatus.
[0002]
[Prior art]
As shown in FIG. 8, there is a PDP (plasma display panel) 3 provided with, for example, a plasma display portion 3b in a central portion on a transparent substrate 3a such as a glass plate. In the PDP 3, the display unit 3b does not exist, and a film-like substrate that supplies power and signals for operating the display unit 3b, that is, an FPC (film printed circuit) 2 is provided on the side edge 3c of the substrate 3a. Be joined.
In order to join the FPC 2 to the FPC joining location in the side edge 3c, the following operation is performed. That is, as shown in FIG. 9, the panel side mark provided on the side edge 3c of the PDP 3 is imaged and recognized by the camera 5b, while the FPC side mark provided on the FPC 2 is imaged by the camera 5a. And recognize. Thereafter, the panel support 10 that supports the side edge 3c of the PDP 3 moves to just below the side edge 3c for the above-described joining operation. The camera 5b also moves in accordance with the movement. Then, the nozzle-like FPC holding part 8 holding the FPC 2 is arranged on the X and Y directions orthogonal to each other and on the holding part 8 based on the recognition result of the panel side mark and the FPC side mark as shown in the figure. The position of the FPC 2 is corrected by moving it around the axis, and the FPC 2 is joined to the predetermined FPC joining location.
[0003]
10, when the FPC 2 is joined to the side edge 3c, the side edge 3c is supported from below by the panel support base 10, and the FPC 2 is supported by the FPC holding part 8 on the side edge 3c. Heated and pressed. At this time, when the panel support 10 shown in FIG. 9 is disposed outside the side edge 3c, that is, when the panel support 10 and the side edge 3c are displaced and the PDP 3 is held, the side edge The part 3c is damaged. Therefore, the panel support 10 holds the PDP 3 on the inner side of the side edge 3c.
[0004]
[Problems to be solved by the invention]
However, as shown in FIG. 9, conventionally, the arrangement position of the camera 5a for imaging the FPC side mark is different from the arrangement position of the camera 5b for imaging the panel side mark. After the FPC side mark is imaged by the camera 5a, the FPC holding portion 8 holding the FPC 2 is moved to the side edge portion 3c for bonding. However, due to the influence of heat, the camera 5a and the camera 5b The distance between changes. Therefore, even if the FPC holding unit 8 is moved at a moving distance determined based on the initial installation distance between the camera 5a and the camera 5b and the correction distance obtained based on the recognition operation, It is difficult to move the moving mechanism of the part 8 with an accuracy of the order of μm.
Further, it has been impossible in the past to check the state after the FPC 2 is joined to the side edge portion 3c, and the joining position shift cannot be checked.
Further, as is clear from FIG. 10, the panel support 10 needs to be changed according to the size of the FPC 2. Therefore, it is necessary to check the parallelism of ± 5 μm between the FPC contact surface 8a of the FPC holding portion 8 and the panel support surface 10a of the panel support base 10 every time the change is made. There was a hassle to do.
The present invention has been made to solve such problems, and a display panel bonding apparatus capable of improving the bonding quality between a display panel and a mounted body as compared with the related art, and the display panel bonding apparatus. It aims at providing the used joining method.
[0005]
[Means for Solving the Problems]
The display panel bonding apparatus according to the first aspect of the present invention includes a panel support member that supports a side edge of a substrate constituting the display panel;
Holds the object to be joined to the side edge Have holding member to And after the said side edge part of the said display panel is mounted on the said panel support member, the said to-be-joined body is pressed to the said side edge part, and the to-be-joined body is joined to the said side edge part. A body holding device;
A joined body camera that images the outer shape of the joined body held by the joined body holding device;
When the side edge portion is placed on the panel support member and the joined body is disposed close to the side edge portion, the panel side mark provided on the side edge portion and the joined body are provided. An imaging camera for imaging the object-side mark in one imaging field;
The end face of the joined body and the above-mentioned image of the joined body obtained from the camera for the joined body Holding member And controlling the position of the object to be bonded based on the imaging information obtained by imaging with the imaging camera. A control device for performing the operation control to be bonded to the side edge portion with respect to the bonded object holding device;
It is provided with.
[0006]
Further, in the thickness direction of the side edge portion placed on the panel support member, the imaging camera is disposed to face the panel support member, and is provided in the joined body holding device to hold the joined body. The holding member can be disposed between the imaging camera and the panel support member.
[0007]
In addition, when the object held by the holding member is pressed against the side edge, the image pickup camera causes the image pickup camera to pick up an image within the same field of view. The holding member may have a working window.
[0008]
Further, when the substrate of the display panel, the joined body, and the panel support member are made of a light-transmitting material, the joined body side mark and the panel side mark are imaged in order to take an image with the imaging camera. An illumination device that emits light that passes through the panel support member and enters the imaging camera can be further provided.
[0009]
Further, a support member moving device for moving the panel support member along the side edge portion can be further provided.
[0010]
Furthermore, the bonding method for a display panel according to the second aspect of the present invention holds and moves the display panel, and arranges the side edge of the substrate of the display panel on the panel support member,
The outer shape of the object to be bonded to the side edge is imaged and the end surface of the object to be bonded is determined by the outer shape imaging information. Holding member for holding the object to be joined Is positioned so as to coincide with the end face, and then the object to be joined is disposed in proximity to the side edge portion disposed on the panel support member,
When the object to be joined is arranged close to the side edge, the panel side mark provided on the side edge and the object to be joined side mark provided on the object to be joined are imaged in one imaging field of view,
After correcting the position of the object to be bonded based on the imaging result, the object to be bonded is bonded to the side edge.
[0011]
The said 2nd aspect WHEREIN: The said panel side mark and the said to-be-joined body side mark can be imaged in one imaging visual field during joining of the to-be-joined body to the said side edge part.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
A display panel bonding apparatus and a display panel bonding method executed by the bonding apparatus according to an embodiment of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected about the same component in each figure. As an example of the display panel, the present embodiment corresponds to, for example, the above-described PDP 3 or LCD (liquid crystal display) in which a display unit is provided on a substrate made of a translucent material such as glass. In addition, as an example of an object to be bonded to the display panel, in the present embodiment, the FPC 2 is used as shown in FIG. 2, for example.
[0013]
As shown in FIG. 2, the display panel bonding apparatus 101 is roughly divided into an ACF sticking apparatus 110, a temporary pressure bonding apparatus 120, a main pressure bonding apparatus 130, a panel holding apparatus 140, a panel conveying apparatus 150, and a control. Device 180, and the panel transport device 150 transports the PDP 3 in the transport direction 155, affixing the ACF (anisotropic conductive film) to the PDP 3, pre-pressing the FPC 2 on the ACF, and further PDP 3 FPC2 is finally pressure-bonded to and joined. The ACF is a pressure-sensitive adhesive tape containing conductive particles. The FPC 2 is heated and pressed to the PDP 3 by being interposed between the PDP 3 and the FPC 2 so that the FPC 2 electrode and the PDP 3 are made of the conductive particles. The electrode is electrically connected. About this ACF, the code | symbol 111 is attached | subjected in FIG.4 and FIG.5.
[0014]
The ACF sticking device 110 is a device for sticking the ACF to the side edge portion 3c of the PDP 3 in which the display portion 3b is provided on the substrate 3a made of a translucent material and to which the FPC 2 is joined. The temporary crimping device 120 is a device for temporarily crimping the FPC 2 onto the ACF pasted by the ACF pasting device 110, and will be described in detail later. The main crimping device 130 is a device that final crimps the FPC 2 temporarily crimped onto the ACF by the temporary crimping device 120 and joins the FPC 2 to the side edge 3c. In this embodiment, the production tact is improved. Therefore, as shown in the drawing, two main crimping devices 131 and 132 are installed along the conveying direction 155.
The panel holding device 140 is installed corresponding to each of the ACF adhering device 110, the temporary pressure bonding device 120, and the main pressure bonding devices 131 and 132, and the display unit for the PDP 3 conveyed by the panel conveying device 150. The suction device 142 that sucks and holds the back surface facing 3b, and is held in the direction 158 around the axis of the central axis 165 along the conveyance direction 155, the direction 156 perpendicular to the conveyance direction 155, and the thickness direction 157 of the PDP 3 being held. And a moving device 141 for positioning the PDP 3 in each of the devices 110, 120, 131, 132 by moving the PDP 3. The moving device 141 and the suction device 142 are connected to a control device 180 and controlled in operation.
[0015]
The temporary crimping apparatus 120 will be described. The temporary press-bonding device 120 can be broadly divided into a panel support device 121, a bonded body holding device 122, and an imaging camera 123, and a FPC 2 supply device 124 can also be provided as shown in FIG.
As shown in FIG. 5, the panel support device 121 includes a panel support member 1211, a moving device 1212, and a lighting device 1213. The panel support member 1211 is a light-transmitting member made of, for example, quartz, which is installed on a base 1215 that houses a plurality of LEDs (light emitting diodes) 1214 included in the lighting device 1213. The side edge portion 3c is provided with a flat support surface 1211a for supporting the side edge portion 3c from the back surface 3d side.
The moving device 1212 is a device for moving the base 1215 in the transport direction 155 and the orthogonal direction 156. As shown in FIG. 1, in the present embodiment, the moving device 1212 has a drive source 1216a formed of a motor and in the transport direction 155. The first ball screw mechanism for moving the panel support member 1211 and the first ball screw mechanism are provided. In this embodiment, the first ball screw mechanism has a drive source 1217a formed of a motor and moves the panel support member 1211 in the orthogonal direction 156. And a two-ball screw mechanism 1217. The drive source 1216a and the drive source 1217a are connected to the control device 180 and controlled in operation.
The illuminating device 1213 is a device that emits light for imaging the panel side mark written on the PDP 3 and the bonded object side mark written on the FPC 2 with the imaging camera 123, and the control device 180. To control the light emission of the LED 1214. The light emitted from the LED 1214 passes through the panel support member 1211, further passes through the PDP 3 and the FPC 2, and reaches the imaging camera 123.
[0016]
The bonded body holding device 122 includes a holding member 1221 that holds the FPC 2, a moving device 1222 that moves the holding member 1221 in the transport direction 155 and the orthogonal direction 156, and the holding member 1221 that holds the FPC 2 by suction. And a pressing device 1224 for moving the holding member 1221 holding the FPC 2 in the thickness direction 157, and a heating device 1227 for generating heat when the FPC 2 and the PDP 3 are temporarily pressure-bonded. The moving device 1222, the suction device 1223, the pressing device 1224, and the heating device 1227 are connected to the control device 180 and controlled in operation.
As shown in FIG. 5, the holding member 1221 is a member having a size that holds at least a side edge portion of the FPC 2. Further, as described above, the FPC 2 held by the holding member 1221 is pressed against the side edge 3c of the PDP 3 by the pressing device 1224. FIG. 6 shows the bonding state of the FPC 2 and the PDP 3 at this time. As shown, the holding member 1221 is provided with an imaging window 1221a that penetrates the holding member 1221 so that the confirmation can be made. By providing the imaging window 1221a, as shown in FIG. 6, during bonding, the bonded object side mark 2c marked on the FPC 2 and the panel side mark 3e marked on the side edge 3c The positional relationship, that is, the joined state between the FPC 2 and the PDP 3 can be imaged in one field of view by the imaging camera 123.
The holding member 1221 has a plurality of suction openings connected to the suction device 1223 so that the FPC 2 can be sucked to the holding surface 1221b.
[0017]
Such a holding member 1221 is attached to the pressing device 1224 as shown in FIG. In this embodiment, the pressing device 1224 has a pressing ball screw mechanism 1224b having a driving source 1224a formed of a motor, and moves the holding member 1221 in the thickness direction 157. The operation of the drive source 1224a is controlled by the control device 180.
In this embodiment, the moving device 1222 has a first drive source 1222a that is a motor, and a ball screw mechanism 1222b for a conveyance direction to which a base plate 1225 on which the pressing ball screw mechanism 1224b is installed is attached. Includes a second drive source 1222c formed of a motor, and an orthogonal direction ball screw mechanism 1222d to which a base plate 1226 on which a conveyance direction ball screw mechanism 1222b is installed is attached. The orthogonal direction ball screw mechanism 1222d is installed on the gantry 125 constituting the temporary crimping apparatus 120. The first drive source 1222a and the second drive source 1222c are connected to the control device 180 and controlled in operation. Accordingly, by operating the first drive source 1222a of the ball screw mechanism 1222b for the transport direction, the base plate 1225 can be moved in the transport direction 155, and further, the second drive source 1222c of the ball screw mechanism 1222d for the orthogonal direction is operated. Thus, the base plate 1226 can be moved in the orthogonal direction 156. Accordingly, the pressing device 1224 can be moved in the transport direction 155 and the orthogonal direction 156 by the transport direction ball screw mechanism 1222b and the orthogonal direction ball screw mechanism 1222d.
[0018]
As shown in FIGS. 4 and 5, the imaging camera 123 is configured so that the side edge 3 c of the PDP 3 is placed on the panel support member 1211 and the FPC 2 held by the holding member 1221 is moved by the moving device 1222. It is a camera that images the panel-side mark 3e provided on the side edge 3c and the member-side mark 2c provided on the FPC 2 in one imaging field of view when arranged close to the side edge 3c. As shown in FIG. 4, in the present embodiment, for example, the panel side mark 3 e is written at two locations along the transport direction 155 and apart from each other. The same applies to the object-side mark 2c. Therefore, for example, the panel-side mark 3e-1 and the panel-side mark 3e-2 cannot be imaged in the same field of view with one imaging camera. Therefore, in this embodiment, two imaging units are taken along the transport direction 155. Cameras and imaging cameras 123-1 and 123-2 are installed on the gantry 125, respectively.
Further, in the present embodiment, each of the imaging cameras 123-1 and 123-2 includes camera moving devices 126-1 and 126-2 so as to be movable along the transport direction 155, respectively. Therefore, for example, imaging can be performed even when the distance between the panel side mark 3e-1 and the panel side mark 3e-2 changes.
[0019]
The two imaging cameras 123-1 and 123-2 and the holding member 1221 that holds the FPC 2 are, as shown in FIGS. 1 and 5, two imaging cameras 123-3 in the transport direction 155. The holding member 1221 is disposed between 1 and 123-2, and the imaging cameras 123-1 and 123-2 are disposed above the holding member 1221 in the thickness direction 157. Therefore, when the FPC 2 is arranged close to the side edge 3c of the PDP 3 as described above, as shown in FIG. 4, the panel side mark 3e-1 and the joined body side mark 2c-1 1, the panel side mark 3 e-2 and the joined body side mark 2 c-2 can be imaged in one imaging field 1233 b by the imaging camera 123-2. In addition, as shown in FIG. 4, the to-be-joined body side mark 2c-1 in the imaging visual field 1233a is imaged through the said imaging window 1221a, for example.
[0020]
As shown in FIG. 2, the FPC supply device 124 mounts the FPC 2 transferred by the transfer device 1242 from the FPC storage portion 1241, moves in the orthogonal direction 156, and delivers the FPC 2 to the holding member 1221. A delivery device 1243 is included. The delivery device 1243 is installed below the central portion of the orthogonal direction ball screw mechanism 1222d of the moving device 1222, and is operated by a driving unit 1244 which is a motor and whose operation is controlled by the control device 180, for example.
[0021]
In addition, as shown in FIG. 3, when the FPC 2 transferred to the delivery device 1243 is transported to the standby position 127 by the delivery device 1243, the temporary crimping device 120 is used for FPC for imaging the outer shape of the FPC 2. It further includes a camera 1271 and an illuminating device 1272 that is disposed to face the FPC camera 1271 with the FPC2 interposed therebetween and emits light for imaging the FPC2. 3 illustrates the delivery device 1243, the FPC camera 1271, the illumination device 1272, and the bonded object holding device 122, and does not illustrate all the components of the temporary pressure bonding device 120. The FPC camera 1271 and the lighting device 1272 are connected to the control device 180 and controlled in operation. Therefore, when the FPC 2 is arranged at the standby position 127, the FPC camera 1271 captures the outer shape of the FPC 2 by the light emitted from the lighting device 1272. After the imaging, the holding member 1221 of the bonded body holding device 122 sucks and holds the FPC 2 mounted on the delivery device 1243. For the suction holding operation, the control device 180 is attached to the end surface 2b of the FPC 2. Operation control of the moving device 1222 and the pressing device 1224 of the bonded object holding device 122 is performed based on the outer shape imaging information of the FPC 2 so that the end surfaces 1221c of the holding member 1221 coincide. The end face 2b and the end face 1221c are aligned with each other because the end face of the holding member 1221 is taken when the panel side mark 3e and the joined body side mark 2c are imaged in one imaging field 1233 as shown in FIG. This is because by aligning 1221c with the end face 2b of the FPC 2, an image of the extra end face 1221c is not displayed, and when the FPC 2 is joined to the PDP 3, the vicinity of the end face 2b of the FPC 2 is also surely pressed.
[0022]
The operation of the display panel bonding apparatus 101 having the provisional pressure bonding apparatus 120 configured as described above will be described below. Operation control in the following operations is executed by the control device 180. In addition, the PDP 3 transport operation by the panel transport device 150, the positioning operation by the panel holding device 140 of the PDP 3 transported by the panel transport device 150, the ACF paste operation to the side edge 3c of the PDP 3 by the ACF paste device 110, Since the main press-bonding operation of the FPC 2 to the side edge 3c by the main press-bonding device 130 is basically similar to each operation in the conventional display panel joining device, detailed description thereof is omitted here. Therefore, below, operation | movement of the temporary crimping | compression-bonding apparatus 120 is demonstrated in detail.
[0023]
The PDP 2 having the ACF 111 attached to the side edge 3c of the PDP 3 by the ACF attaching device 110 is carried into the next temporary crimping device 120 by the panel transport device 150, and is transferred to the panel holding device 140 provided in the temporary crimping device 120. Is held by adsorption. As shown in FIG. 5, the moving device 141 of the panel holding device 140 maintains the holding state, and the portion corresponding to the area where the FPC 2 is pressed on the back surface 3d of the PDP 3 and the side edge portion 3c as shown in FIG. The temporary pressure bonding device 120 is placed on the support surface 1211 a of the panel support member 1211 of the panel support device 121.
[0024]
On the other hand, the FPC 2 is transferred from the FPC storage unit 1241 of the FPC supply device 124 to the delivery device 1243 by the transport device 1242, and is transported to the standby position 127 by the delivery device 1243. The outer shape of the FPC 2 transported to the standby position 127 is imaged by the FPC camera 1271, so that the end surface 1221c of the holding member 1221 coincides with the end surface 2b of the FPC 2 based on the imaging information as described above. The holding member 1221 is moved by the moving device 1222 and the pressing device 1224 of the bonded object holding device 122. After positioning the end surface 2b and the end surface 1221c, the holding member 1221 is brought into contact with the FPC 2, and the suction device 1223 connected to the holding member 1221 holds the FPC 2 by suction. After the holding member 1221 holds the FPC 2, the pressing device 1224 and the moving device 1222 are operated, and are written on the side edge 3 c of the PDP 3 placed on the panel support member 1211 as shown in FIG. The holding member 1221 is moved so that the panel-side mark 3e and the joined-body-side mark 2c of the FPC 2 are within the same imaging visual field 1233, and the FPC 2 is brought close to the side edge 3c.
[0025]
After the proximity operation, the imaging cameras 123-1 and 123-2 respectively capture an image with the panel side mark 3e and the joined body side mark 2c stored in the imaging visual fields 126-1 and 126-2. Do. After the imaging, the position correction amount of the FPC 2 is obtained based on the imaging information so that the panel side mark 3e and the joined body side mark 2c are arranged corresponding to each other as shown in FIG. Based on the position correction amount, the moving device 1222 of the bonded body holding device 122 moves, and then the pressing device 1224 operates to temporarily join the FPC 2 to the side edge 3c of the PDP 3.
Further, during the joining, the panel side mark 3e and the joined body side mark 2c can be imaged as shown in FIG. 6 through the imaging window 1221a provided on the holding member 1211 of the FPC 2, and the FPC 2 and the PDP 3 Can be detected.
[0026]
In the present embodiment, as described above, the holding member 1221 of the joined body holding device 122 is disposed so that the side edge 3c of the PDP 3 and the FPC 2 can approach each other, and the imaging camera 123 is disposed above the holding member 1221. −1, 123-2 are arranged in the imaging fields 126-1 and 126-2 of the imaging cameras 123-1 and 123-2 along the thickness direction 157 before joining the FPC 2 to the PDP 3. Both the panel side mark 3e and the joined body side mark 2c can be accommodated. Therefore, since the PDP 3 and the FPC 2 are close enough to be imaged in the same field of view with the same camera, the amount of movement when the FPC 2 is moved to the PDP 3 for joining after imaging is larger than that in the conventional case. Is significantly shortened. Therefore, the FPC 2 can be moved with an accuracy of the order of μm by improving the position correction accuracy by correcting the position of the FPC 2 based on the imaging information within the one imaging field of view, and reducing the movement amount. And the FPC 2 can be improved in accuracy of joining, that is, the joining quality as compared with the prior art.
[0027]
Further, since imaging can be performed even during joining, it is possible to check the positional deviation of the FPC 2 with respect to the PDP 3 during joining.
[0028]
Further, since the panel support member 1211 has a structure that can be moved by the moving device 1212 in the transport direction 155 and the orthogonal direction 156, the size of the PDP 3 and the FPC 2 is changed by changing the types of the PDP 3 and the FPC 2. Even then, the panel support member 1211 can be moved in the transport direction 155 as shown in FIG. Therefore, it is not necessary to replace the panel support member 1211 every time the type is changed. In addition, since it is possible to move the panel support member 1211 while controlling the position of the panel support member 1211, it is possible to prevent the panel support member 1211 from being disposed beyond the end surface 3f of the PDP 3 as indicated by a dotted line in FIG. .
[0029]
The PDP 3 to which the FPC 2 has been temporarily joined as described above is transported to the next press-bonding device 130 by the panel transport device 150, and the FPC 2 is finally press-bonded. Then, the PDP 3 to which the FPC 2 is finally press-bonded is again transported to the next process by the panel transport device 150.
[0030]
【The invention's effect】
As described above in detail, the display panel bonding apparatus according to the first aspect of the present invention and the display panel bonding method according to the second aspect of the present invention include the imaging camera, the bonded object holding apparatus, and the control apparatus. The panel side mark on the side edge of the object and the object to be joined side mark provided on the object to be joined are imaged by the imaging camera in one imaging field of view, and the position of the object to be joined is corrected based on the imaging information. To be joined. Therefore, since the display panel and the joined body are brought close to each other so that an image can be taken in one imaging field of view of the imaging camera by the joined body holding device, the joined body is moved to the display panel for joining after imaging. The amount of movement when moving is significantly reduced compared to the conventional case. Therefore, by improving the position correction accuracy by correcting the position of the bonded object based on the imaging information within the one imaging field of view and reducing the movement amount, the bonding accuracy between the display panel and the bonded object, that is, bonding Quality can be improved as compared with the prior art.
[0031]
In the thickness direction of the display panel, the imaging camera is disposed so as to face the panel support member, and the holding member for the bonded body is disposed between the imaging camera and the panel support member. Can be easily achieved.
[0032]
Further, by providing the holding member with an imaging window, the joining state between the display panel and the joined body can be captured and confirmed with the imaging camera through the imaging window even during joining.
[0033]
Furthermore, by further providing an illuminating device that emits light that passes through the panel support member and enters the image pickup camera, the display in the state in which the image pickup camera is disposed facing the panel support member in the thickness direction of the display panel. The panel-side mark of the panel and the bonded object mark of the bonded object can be clearly imaged.
[0034]
Further, by providing the supporting member moving device, the panel supporting member can be moved in response to the change even when the type of the display panel or the joined body changes and the size changes. Therefore, it is not necessary to change the panel support member every time the type is changed, and it is not necessary to adjust the parallelism between the panel support member and the holding member of the joined body.
[Brief description of the drawings]
FIG. 1 is a perspective view of a temporary pressure bonding device provided in a display panel bonding device according to an embodiment of the present invention.
FIG. 2 is a perspective view showing the entire display panel bonding apparatus according to an embodiment of the present invention.
FIG. 3 is a side view of the temporary pressure bonding apparatus shown in FIG.
4 is a diagram showing a state in which the PDP panel side mark and the FPC to-be-joined body side mark are imaged in one imaging field of view in the provisional pressure bonding apparatus shown in FIG. 1;
5 is a diagram showing an arrangement relationship among an imaging camera, a panel support member, and a holding member in the state shown in FIG.
6 is a view showing a state in which an FPC is bonded to a PDP in the provisional pressure bonding apparatus shown in FIG.
7 is a view for explaining that the panel support member moves in the temporary pressure bonding apparatus shown in FIG. 1; FIG.
FIG. 8 is a diagram showing a state in which an object to be bonded is attached to a display panel.
FIG. 9 is a diagram for explaining an operation of joining an FPC to a PDP in a conventional temporary pressure bonding apparatus.
FIG. 10 is a diagram showing a state in which an FPC is bonded to a PDP in a conventional temporary pressure bonding apparatus.
[Explanation of symbols]
2 ... FPC, 2c ... bonded body side mark, 3 ... PDP, 3a ... substrate,
3c ... side edge, 3e ... panel side mark,
101 ... Joining device for display panel, 120 ... Temporary pressure bonding device,
122 ... Bonded object holding device, 123 ... Imaging camera,
1211 ... Panel support member, 1212 ... Moving device, 1213 ... Illuminating device,
1221 ... Holding member, 1221a ... Imaging window.

Claims

表示パネル（３）を構成する基板（３ａ）の側縁部（３ｃ）を支持するパネル支持部材（１２１１）と、
上記側縁部に接合される被接合体（２）を保持する保持部材（１２２１）を有し、かつ上記表示パネルの上記側縁部が上記パネル支持部材上に載置された後上記被接合体を上記側縁部に押圧して上記側縁部へ上記被接合体を接合する被接合体保持装置（１２２）と、
上記被接合体保持装置に保持された上記被接合体の外形を撮像する被接合体用カメラ（１２７１）と、
上記側縁部が上記パネル支持部材に載置されかつ上記被接合体が上記側縁部に近接して配置されたとき、上記側縁部に設けたパネル側マーク（３ｅ）及び上記被接合体に設けた被接合体側マーク（２ｃ）を一つの撮像視野にて撮像する撮像カメラ（１２３）と、
上記被接合体用カメラから得た上記被接合体の外形撮像情報にて上記被接合体の端面（２ｂ）と上記保持部材の端面（１２２１ｃ）とを一致させる動作制御を上記被接合体保持装置に対して行なうとともに、上記撮像カメラによる撮像にて得た撮像情報に基づいて上記被接合体の位置補正をして上記被接合体を上記側縁部に接合させる動作制御を上記被接合体保持装置に対して行なう制御装置（１８０）と、
を備えたことを特徴とする表示パネル用接合装置。A panel support member (1211) for supporting the side edge (3c) of the substrate (3a) constituting the display panel (3);
Object to be bonded to be joined to the side edge (2) possess holding member (1221) for holding, and the side edges above the joined after being placed on the panel support member of the display panel A bonded body holding device (122) for pressing a body against the side edge portion and bonding the bonded body to the side edge portion;
A to-be-joined camera (1271) for imaging the outer shape of the to-be-joined body held by the to-be-joined body holding device;
When the side edge is placed on the panel support member and the object to be joined is disposed close to the side edge, the panel side mark (3e) provided on the side edge and the object to be joined An imaging camera (123) for imaging the object-side mark (2c) provided in the imaging field in one imaging field;
The joined body holding device controls the operation of aligning the end surface (2b) of the joined body and the end surface (1221c) of the holding member with the outer shape imaging information of the joined body obtained from the camera for the joined body. And holding the object to be joined by correcting the position of the object to be joined based on the imaging information obtained by the imaging camera and joining the object to be joined to the side edge. A control device (180) for the device;
A display panel joining apparatus comprising:

上記パネル支持部材上に載置された上記側縁部の厚み方向（１５７）において、上記撮像カメラは上記パネル支持部材に対向して配置され、上記保持部材（１２２１）は、上記撮像カメラと上記パネル支持部材との間に配置される、請求項１記載の表示パネル用接合装置。 In the thickness direction (157) of the side edge portion placed on the panel support member, the imaging camera is disposed to face the panel support member, and the holding member (1221) includes the imaging camera and the The joining apparatus for display panels of Claim 1 arrange | positioned between panel support members.

上記保持部材にて保持している上記被接合体を上記側縁部に押圧しているときに、上記被接合体側マーク及び上記パネル側マークを上記撮像カメラに同一視野内で撮像させる撮像用窓（１２２１ａ）を上記保持部材は有する、請求項２記載の表示パネル用接合装置。 An imaging window that causes the imaging camera to capture the image of the bonded object side mark and the panel side mark within the same field of view when pressing the bonded object held by the holding member against the side edge. The display panel bonding apparatus according to claim 2, wherein the holding member has (1221a).

上記表示パネルの上記基板、上記被接合体、及び上記パネル支持部材は透光性材料からなり、上記被接合体側マーク及び上記パネル側マークを上記撮像カメラにて撮像するために上記パネル支持部材を通過して上記撮像カメラへ入射する光を発する照明装置（１２１３）をさらに備えた、請求項２又は３記載の表示パネル用接合装置。 The substrate, the joined body, and the panel support member of the display panel are made of a light-transmitting material, and the panel support member is used for imaging the joined body side mark and the panel side mark with the imaging camera. The joining apparatus for display panels of Claim 2 or 3 further provided with the illuminating device (1213) which emits the light which passes and injects into the said imaging camera.

上記側縁部に沿って上記パネル支持部材を移動させる支持部材用移動装置（１２１２）をさらに備えた、請求項１から４のいずれかに記載の表示パネル用接合装置。 The display panel joining device according to any one of claims 1 to 4, further comprising a support member moving device (1212) for moving the panel support member along the side edge portion.

表示パネル（３）を保持して移動し該表示パネルの基板（３ａ）の側縁部（３ｃ）をパネル支持部材（１２１１）上に配置し、
上記側縁部に接合される被接合体（２）の外形を撮像して該外形撮像情報にて上記被接合体の端面と上記被接合体を保持する保持部材の端面とが一致するように位置決めし、その後、上記パネル支持部材上に配置された上記側縁部に近接して上記被接合体を配置し、
上記被接合体が上記側縁部に近接して配置されたとき、上記側縁部に設けたパネル側マーク（３ｅ）及び上記被接合体に設けた被接合体側マーク（２ｃ）を一つの撮像視野にて撮像し、
撮像結果に基づいて上記被接合体の位置補正をした後、上記被接合体を上記側縁部に接合する、
ことを特徴とする表示パネル用接合方法。Holding and moving the display panel (3), the side edge (3c) of the substrate (3a) of the display panel is disposed on the panel support member (1211),
The outer shape of the object to be joined (2) to be joined to the side edge is imaged so that the end face of the object to be joined and the end face of the holding member that holds the object to be joined coincide with each other by the outline imaging information. Positioning, and then placing the object to be joined in proximity to the side edge located on the panel support member,
When the object to be joined is arranged close to the side edge, the panel side mark (3e) provided on the side edge and the object to be joined side mark (2c) provided on the object to be joined are imaged. Image in the field of view,
After correcting the position of the object to be bonded based on the imaging result, the object to be bonded is bonded to the side edge.
A display panel bonding method characterized by the above.

上記側縁部への上記被接合体の接合中にて、上記パネル側マーク及び上記被接合体側マークを一つの撮像視野にて撮像する、請求項６記載の表示パネル用接合方法。 The joining method for display panels of Claim 6 which images the said panel side mark and the said to-be-joined body side mark in one imaging visual field during joining of the said to-be-joined body to the said side edge part.