JP3911954B2

JP3911954B2 - ELECTRO-OPTICAL DEVICE, MANUFACTURING METHOD THEREOF, AND ELECTRONIC DEVICE

Info

Publication number: JP3911954B2
Application number: JP2000080674A
Authority: JP
Inventors: 講吉狭間
Original assignee: Seiko Epson Corp
Current assignee: Seiko Epson Corp
Priority date: 2000-03-22
Filing date: 2000-03-22
Publication date: 2007-05-09
Anticipated expiration: 2020-03-22
Also published as: JP2001264733A

Description

【０００１】
【発明の属する技術分野】
本発明は電気光学装置およびその製造方法、さらに電気光学装置を用いた電子機器に係り、特に、電気光学パネルをケース体に収容してなる電気光学装置の収容構造に関する。
【０００２】
【従来の技術】
一般に、従来の液晶表示装置においては、ガラスやプラスチック等の透明材料からなる２枚のパネル基板を、シール材を介して貼り合わせ、その間に液晶を封入することによって液晶パネルを構成し、この液晶パネルを種々の方法で保持固定する。例えば、この液晶パネルを、透明なアクリル樹脂等からなる、導光機能を有する下ケース部材の導光部上に載置し、そこにステンレス鋼の板材等からなる上ケース部材を被せることによって、下ケース部材と上ケース部材からなるケース体内に液晶パネルを収容する場合がある。この場合、下ケース部材と上ケース部材とは、凸部と凹部とを係合させたり、フックと段差部とを係合させたり、一方のケース部材に設けた爪状部を折り曲げて他方の段差部に係合させたりするなどの方法によって相互に固定される。これらの係合構造は、通常、液晶パネルの側面側にある下ケース部材及び上ケース部材の側面部に設けられる。
【０００３】
また、下ケース部材の上に液晶パネルを載置した状態で上ケース部材を被せ、この上ケース部材の側面部から下方に突出するように形成したフック等の係合部を回路基板に形成された孔部等の被係合部に係合させることによって、回路基板上においてケース体に収容された液晶パネルを固定する方法もある。
【０００４】
【発明が解決しようとする課題】
しかしながら、上記従来の液晶装置では、下ケース部材の側面部と上ケース部材の側面部とを厚さ方向に重ね合わせ、両側面部に設けた係合構造によって下ケース部材と上ケース部材とを固定したり、上ケース部材の側面部に設けた係合部を回路基板に直接係合させることによって回路基板上に固定したりしているので、係合構造のために厚さ方向の余裕を確保する必要があり、液晶装置全体の厚さを低減することが困難であり、また、係合構造を側面部に設ける必要があるため、ケース体の平面寸法を低減することが難しいという問題点がある。
【０００５】
特に、近年の携帯機器を初めとする各種機器の小型化の進展によって、液晶装置の小型化、薄型化も強く要請されるようになってきており、液晶パネルを構成するパネル基板の厚さも急減する傾向にある。したがって、液晶装置のについても薄型化が要求され、しかも、液晶表示領域の外側に張り出し幅も低減（狭額縁化）することが要求されてきているため、液晶パネルを収容するケース体の構造によって液晶装置の寸法が大きく影響を受けるようになってきている。
【０００６】
そこで本発明は上記問題点を解決するものであり、その課題は、液晶装置その他の各種の電気光学装置において、電気光学パネルを収容するケース体の係合方法を変更することによって、装置全体の小型化や薄型化を妨げることのない電気光学パネルの収容構造を提供することにある。
【０００７】
【課題を解決するための手段】
本発明の電気光学装置の製造方法は、基板上に電気光学材料が配置された電気光学パネルと、該電気光学パネルを背面側から支持する第１ケース部材と、前記電気光学パネルを前面側から支持する第２ケース部材とを備えた電気光学装置の製造方法であって、第１ケース部材と前記第２ケース部材とには、前記電気光学パネルを収容した状態で前記第１ケース部材と前記第２ケース部材とが相互に接触可能な当接面領域が設けられ、該当接面領域において前記第１ケース部材と及び前記第２ケース部材のいずれか一方に凸部が形成され、いずれか他方における前記凸部に対応する位置に開口部が、所定方向に延長されて形成されており、前記第１ケース部材には、前記所定方向の一方側において前記電気光学パネルに当接する第１当接部が設けられ、前記第２ケース部材には、前記所定方向の他方側において前記電気光学パネルに当接する第２当接部が設けられており、前記開口部に前記凸部を通して、前記電気光学パネルを前記第１ケース部材及び前記第２ケース部材に収容してから、前記第１ケース部材と前記第２ケース部材とを相互に前記所定方向にスライドさせて、前記電気光学パネルを前記第１当接部及び前記第２当接部で挟持した状態で、前記凸部の先端を変形させて前記第１ケース部材と前記第２ケース部材とを固定することを特徴とする。
【０００８】
本発明によれば、第１ケース部材と第２ケース部材とが相互に当接する当接面領域に凸部と開口部とが形成されており、凸部の先端を変形させることによって両ケース部材を固定しているので、変形した凸部の突出量以外に係合構造のためにケース体の厚さを確保する必要がなくなるとともに、ケース体の側部に係合構造を設ける必要もなくなるので、小型化及び薄型化が図られる電気光学装置を製造することができる。また、開口部が所定方向に延長されて形成されているので、第１ケース部材と第２ケース部材とを、開口部に凸部を通した状態で所定方向に相互にスライドさせることができる。さらに、第１ケース部材及び第２ケース部材のそれぞれには、電気光学パネルの所定方向における両側のそれぞれに当接する第１当接部及び第２当接部のそれぞれが設けられている。従って、開口部に凸部を通した状態で両ケース部材をスライドさせることによって電気光学パネルを所定方向に位置決めすることができる。そして、電気光学パネルを所定方向に位置決めした状態で凸部の先端を変形させて両ケース部材を固定することができるから、電気光学装置の組立を容易に行うことができる。
【０００９】
本発明において、前記凸部の先端を、該凸部の先端の表面が凸曲面状になるように変形させてもよい。この手段によれば、凸部の先端が受ける応力を凸曲面状の表面に分散させることができるので、変形後の凸部の突出量を低減しつつ、係合強度を高めることができる。
【００１０】
本発明において、前記凸部の先端を、該凸部の先端が半球状になるように変形させてもよい。この手段によれば、凸部の先端が受ける応力を半球状の表面全体に向けて分散させることができる。
【００１１】
本発明において、所定形状の成形用凹部を備えた成形部材を前記凸部の先端に当接させて前記凸部の先端を変形させてもよい。この手段によれば、成形用凹部を加熱したり、成形用凹部から振動を与えたりすることによって成形用凹部に対応した形状に凸部の先端を容易に変形させることができる。
【００１２】
本発明において、前記凸部の先端に振動を与えることによって前記凸部の先端を変形させてもよい。この手段によれば、大きな応力を加えたり加熱したりする必要がないので、電気光学パネルにダメージを与える可能性を低減することができる。
【００１３】
本発明の電子機器は、上記の製造方法で製造された電気光学装置を備えている。
【００１８】
【発明の実施の形態】
次に、添付図面を参照して本発明に係る電気光学装置の実施形態について詳細に説明する。以下に説明する各実施形態はいずれも、電気光学材料として液晶を用いた液晶装置の具体例を示すものであるが、本発明は液晶装置に限らず、エレクトロルミネッセンス装置、プラズマディスプレイ装置など、種々の電気光学装置に適用することができるものである。
【００１９】
［第１実施形態］
図１は本発明に係る第１実施形態の液晶表示装置の外観を示す平面図であり、図２は第１実施形態の外観を示す右側面図であり、図３は第１実施形態の縦断面図（図１のIII−III線に沿って切断した状態を示す断面矢視図）であり、図４は下ケース部材の形状を示す平面図である。
【００２０】
本実施形態は、図３に示すように、ガラス等からなるパネル基板１１とパネル基板１２との間に図示しない液晶をシール材によって封止してなる液晶パネル１０を備えている。この液晶パネル１０は、アクリル樹脂等の透明樹脂などからなる下ケース部材２０と、ステンレス鋼の板材等からなる上ケース部材３０とによって構成されるケース体の内部に収容されている。液晶パネル１０のパネル基板１１には、パネル基板１２よりも外側に張り出してなる基板張出部１１ａが設けられ、この基板張出部１１ａの表面上には液晶パネル１０の液晶封止領域から引き出された図示しない配線パターンが形成されている。この配線パターンには液晶駆動回路である集積回路チップ１４が実装されている。また、この配線パターンには、上記基板張出部１１ａの端部に図示しない入力端子が形成され、この入力端子に対して後述するコネクタ２１が導電接触するように構成されている。
【００２１】
図３及び図４に示すように、下ケース部材２０は、液晶パネル１０よりも一回り大きな長方形からなる平面形状を備え、液晶パネル１０を受け入れる長方形状の収容凹部２０ａを有している。この収容凹部２０ａの周縁部には、貫通したコネクタ収容孔２０ｂが形成されている。コネクタ収容孔２０ｂには、コネクタ２１が嵌合されている。
【００２２】
下ケース部材２０における、液晶パネル１０を載置した収容凹部２０ａの底面を構成する部分は導光部２２となっており、この導光部２２の外面２２ａには端面部２２ｂから導入される光を前面側すなわち液晶パネル側（図３において図示上側）へ均一に放出するための凹凸形状が形成されている。この凹凸形状の代わりに白色反射板等を貼り付けてもよい。上記の端面部２２ｂには、本実施形態の液晶表示装置を設置したときに、図示しない回路基板上に実装されたＬＥＤ（発光ダイオード）が対向配置されるようになっている。
【００２３】
下ケース部材２０における収容凹部２０ａの周囲には、図４に示すように、長方形状の外縁の一辺に沿った枠状部２３と、枠状部２３に一端が接する枠状部２４とが形成されている。枠状部２４と対向する側には、外側に舌状に張り出した張出部２５と、この張出部２５の両側において対向するように設けられた一対の弾性腕部２６，２６とが形成されている。弾性腕部２６は導光部２２に対してその外縁に沿って伸びた形状を備え、その先端部によって収容凹部２０ａに収容された液晶パネル１０の側面を押圧し、反対側に設けられた上記枠状部２４に押し付けるように作用して、液晶パネル１０を収容凹部２０ａ内の図示左右方向に位置決めするように構成されている。収容凹部２０ａを取り囲む上記の枠状部２３，２４，２６の前面部は、収容凹部２０ａ内に液晶パネル１０を収容したときにも、上ケース部材３０に当接する当接面領域となっている。
【００２４】
この当接面領域を構成する、下ケース部材２０の枠状部２３、枠状部２４の端部にて広がった端角部２４ａ、及び、弾性腕部２６の基部にて広がった端角部２６ａのそれぞれの各前面部には、前面側（図３に示す図示上側）に伸びる軸状の凸部２７がそれぞれ複数形成されている。これらの凸部２７は当初、図５（ａ）に示すように各前面部から上方へまっすぐに突出している。
【００２５】
また、下ケース部材２０には、上記枠状部２３における収容凹部２０ａに臨む内側面２３ａが形成され、この内側面２３ａは液晶パネル１０の基板張出部１１ａの端面に当接して液晶パネル１０を位置決めするようになっている。
【００２６】
一方、上ケース部材３０は、板材をプレス加工等によって折り曲げて成形されたものであり、図１に示すように、中央部には長方形状に開口した表示窓部３０ａが配設される。この表示窓部から液晶パネルの有効表示領域が認知される。この表示窓部３０ａの図示上方（液晶パネルの基板張出部１１ａを覆う部分）にはやや広い幅の覆板部３１が形成され、表示窓部３０ａの図示左右の端部には、液晶パネルの左右側面を覆うように液晶パネルの側面側に折り曲げられた折曲縁部３２，３３が設けられている。また、覆板部３１から見て表示窓部３０ａを挟んだ反対側には液晶パネルの下側面を覆うように液晶パネルの側面側に折り曲げられた折曲縁部３４が設けられている。この折曲縁部３４の内面３４ａは、液晶パネル１０における上記基板張出部１１ａとは反対側の端部（液晶パネルの下側面）に当接するようになっている。
【００２７】
上ケース部材３０の表示窓部３０ａの周囲には、複数の開口部３０ｂが形成されている。これらの開口部３０ｂは、上記下ケース部材２０に形成された凸部２７に対応する位置にそれぞれ形成され、上記凸部２７を通することができる大きさに形成されている。
【００２８】
本実施形態においては、まず、液晶パネル１０のパネル基板１１，１２の外面上に偏光板１１ｐ，１２ｐ、その他必要に応じて位相差膜、反射膜などを貼着した後、液晶パネル１０を下ケース部材２０の収容凹部２０ａに収容する。そして、上ケース部材３０を液晶パネル１０の上から被せるようにして、図５（ａ）に示すように、下ケース部材２０の凸部２７がそれぞれ上ケース部材３０の開口部３０ｂに挿通されるようにセットする。このとき、液晶パネル１０における基板張出部１１ａの端部（液晶パネルの上側面）が上記内側面２３ａに当接し、液晶パネル１０における基板張出部１１ａとは反対側の端部が上記内面３４ａに当接するように両ケース部材を液晶パネル１０に押し付けられる。つまり、液晶パネルは、下ケース部材２０と上ケース部材３０とによって液晶パネルの上下方向に（図１の上下方向）に位置決めされる。
【００２９】
なお、液晶パネル１０のケース体への組み込みは上記以外にも種々の方法で行うことができる。例えば、上ケース部材３０の内面上に液晶パネル１０を両面テープや接着剤等によって貼り付けた後、上ケース部材３０を液晶パネル１０ごと下ケース部材２０にセットしても構わない。また、液晶パネル１０を下ケース部材２０の導光部２２の内面上に接着してもよい。
【００３０】
次に、図５（ｂ）に示すように、先端に半球状の成形用凹部４０ａを備えた成形部材４０を用いて、成形用凹部４０ａを凸部２７の先端に当接させ、成形部材４０に超音波振動を印加する。超音波振動は成形用凹部４０ａから凸部２７に伝わり、凸部４０は振動によって溶融若しくは軟化して変形し、成形用凹部４０ａの形状に倣い、半球状に成形された頭部２７ａが形成される。このとき、上記成形用凹部４０ａの内径Ｄは開口部３０ｂの内径よりも大きく形成されているので、頭部２７ａは開口部３０ｂの内径よりも大きな外径を有するものとなる。このように超音波振動によって凸部を変形させることによって、ケース体に大きな応力や熱を加える必要がなくなるので、液晶パネルにダメージを与える可能性を低減することができる。
【００３１】
このようにして、凸部２７の頭部２７ａが成形されると、図１及び図２に示すように、その頭部２７ａによって第２ケース部材３０は第１ケース部材２０に対して固着され、その結果、液晶パネル１０は、第１ケース部材２０及び第２ケース部材３０からなるケース体の内部に位置決めされた状態で保持される。
【００３２】
本実施形態においては、下ケース部材２０の枠状部２３の表面に形成された凸部２７を、上ケース体３０の覆板部３１に形成された開口部３０ｂに通して、凸部２７の先端をカシメ加工することによって、下ケース部材２０と上ケース部材３０とを固定しているので、各ケース部材の側面部においてケース部材の厚さ方向に伸びるフック等の係合構造を設ける必要がなくなるから、ケース部材自体の厚さを薄型化された液晶パネルに合わせて薄く形成することができるとともに、ケース部材の側方への張出量を低減することができ、小型化できる。また、カシメ加工による凸部２７と開口部３０ｂとの係合によって両ケース部材を固定しているので、凸部２７の突出量を制限することによって係合部自体の厚さを低減することができる。したがって、液晶パネルの小型化と薄型化を十分に生かしたケース体構造を形成することができ、液晶表示装置全体としての小型化と薄型化を容易に実現することができる。
【００３３】
特に、本実施形態では、凸部２７の先端を成形部材４０によって一定の既定形状に加工しているので、カシメ部分の強度が安定し、半球状（凸曲面状）の頭部２７ａとするように成形しているため、当該カシメ部分に加わる応力を半球状（凸曲面状）の表面全体に向けて分散させることができるので、頭部２７ａの厚さや張出量を大きくすることなく、強度を向上させることができる。これに対して、凸部の頭部形状を例えば平板状に成形した場合、上ケース部材３０から受ける応力は、頭部の張出部の根元部分に集中するので、同じ厚さや張出量の上記頭部２７ａの場合に比べると、当該根元部分が破断しやすくなる。
【００３４】
［第２実施形態］
次に、本発明に係る第２実施形態の液晶装置について図６乃至図８を参照して説明する。この実施形態は、先に説明した第１実施形態と同じ液晶パネル１０を、第１実施形態と基本的に同様の下ケース部材４０と上ケース部材５０とからなるケース体に収容した構造を備えている。下ケース部材４０には枠状部４３が設けられ、この枠状部４３には、第１実施形態と同様に液晶パネル１０の端部に当接するように構成された内側面４３ａが形成されている。また、上ケース部材５０には表示窓部５０ａが設けられ、また、上ケース部材５０の端部には第１実施形態と同様の折曲縁部５４が設けられ、この折曲縁部５４の内面５４ａは液晶パネル１０のもう一方の端部に当接するように構成されている。
【００３５】
下ケース部材４０には、第１実施形態と同様の当接面領域を構成する枠状部４３，４４，４５が設けられ、枠状部４３の前面部と、枠状部４４の端角部４４ａの前面部と、枠状部４５の端角部４５ａの前面部とに、それぞれ凸部４７が形成されている。一方、上ケース部材５０には、凸部４７に対応した開口部５０ｂが形成されている。本実施形態の開口部５０ｂは、図示上下方向（すなわち、液晶パネル１０と内側面４３ａ及び内面５４ａとが当接する方向）に延長された長円形状を備えている。
【００３６】
本実施形態では、当初、下ケース部材４０と上ケース部材５０とが相互に固定されておらず、従って液晶パネル１０もケース体内において図示上下方向には位置決めされていない状態において、図６に示すように、下ケース部材４０と上ケース部材５０とが相互に図示上下方向に多少ずれた状態（すなわち、内側面４３ａと内面５４ａとの間の距離が液晶パネル１０の図示上下方向の幅よりも大きくなっている状態）にあっても、凸部４７を延長形状の開口部５０ｂに挿通することができる。つまり、開口部５０ｂが図示上下方向に延長された形状に形成されているので、下ケース部材４０と上ケース部材５０との嵌め合い状態の余裕を大きくすることができ、その結果、組立作業を容易にすることができる。
【００３７】
次に、図６に示す状態から、下ケース部材４０を図示上方へ、上ケース部材５０を図示下方へと相対的にスライドさせ、図７に示すように、液晶パネル１０が内側面４３ａと内面５４ａとによって挟持されるようにする。このとき、液晶パネル１０はケース体によって位置決めされた状態となる。この状態で下ケース部材４０と上ケース部材５０の位置関係を保持しながら、先の第１実施形態において説明したように、凸部４７の先端を変形させ、図８に示すように、開口部５０ｂの幅よりも広幅の頭部４７ａを形成し、凸部４７と開口部５０ｂの開口縁部とを完全に固着する。
【００３８】
本実施形態では、開口部５０ｂを延長形状に形成することによって下ケース部材４０と上ケース部材５０とを相互に組み合わせた状態で（すなわち凸部４７を開口部５０ｂに挿通させた状態で）所定方向にスライド可能に構成し、両ケース部材を所定方向にスライドさせることによって液晶パネル１０を位置決めできるとともに、この位置決め状態で凸部４７の先端を変形させて下ケース部材４０と上ケース部材５０とを固定するようにしているので、液晶パネル１０のケース体への取り付け作業が容易になるとともに、部品の寸法精度の如何に拘わらず、液晶パネル１０の位置決めを確実に行うことができ、また、液晶パネル１０の位置決めが正確に行われている状態で確実に両ケース部材を係合、固定することができる。なお、凸部４７の先端の変形させた後の形状は開口部５０ｂの幅よりも広幅になり、開口部５０ｂに係合するようになってさえいればよいが、第１実施形態と同様に、凸曲面状の表面を有する半球状の頭部を形成することが好ましい。
【００３９】
上記の凸部と開口部との関係は種々変更することが可能である。例えば、図９に示すように、凸部６７に対応する延長形状の開口部７０ｂを設けた場合、開口部７０ｂの一部に凸部６７の外径よりも一回り大きな内径若しくは幅を備えた広幅部７０ｂ−１を形成するとともに、残りの部分を凸部６７の外径にほぼ対応した幅を有する延長部７０ｂ−２とする。このとき、凸部６７を備えた図示しない下ケース部材に対して、開口部７０ｂを備えた上ケース部材を嵌合させる場合には、図９（ａ）に示すように、大きく形成された広幅部７０ｂ−１に凸部６７を挿通させるようにすれば、作業を容易に行うことができる。
【００４０】
この凸部６７と開口部５０ｂとを備えた液晶表示装置を組み立てる場合には、図９（ａ）に示すように広幅部７０ｂ−１に凸部６７を挿通させた後、図９（ｂ）に示すように凸部６７の先端を変形させて頭部６７ａを形成し、その後、図９（ｃ）に矢印で示すように、下ケース部材と上ケース部材とを、図示しない液晶パネルを両ケース部材によって位置決めした状態になるまで相対的にスライドさせる。このとき、凸部６７は広幅部７０ｂ−１から延長部７０ｂ−２に入り、延長部７０ｂ−２によってスライド方向が規制される。
【００４１】
なお、上記の凸部６７と開口部７０ｂとの係合手順を、図９に示す方法で行うことなく、第２実施形態で示す方法と同様に、凸部６７と開口部７０ｂとが嵌合した状態で、先に両ケース部材を相対的にスライドさせて、液晶パネルが位置決めされた状態とし、その後に、凸部６７の先端を変形させて頭部６７ａを形成するようにしてもよい。
【００４２】
尚、本発明の電気光学装置及びその製造方法は、上述の図示例にのみ限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。例えば、上記の下ケース部材及び上ケース部材は、ケース部材専用に設けられているものに限らず、例えば、回路基板の一部や、機器のケース体の一部を構成するものなどであってもよい。また、各ケース部材は一体のものに限らず、複数の部品によって構成されているものであってもよく、例えば、下ケース部材が基体と導光板とによって構成されていても構わない。
【００４３】
［第３実施形態］
次に、上記の液晶表示装置を内蔵した電子機器の構造例を第３実施形態として図１０を参照して説明する。この実施形態は携帯電話であり、外装ケース１０１の外面には、多数の操作ボタンを配列させた操作部１０２と、出没自在に形成されたアンテナ１０３と、音発生部１０４と、音検出部１０５と、表示部１０６とが設けられている。
【００４４】
外装ケース１０１の内部には、回路基板１が設置され、この回路基板１には、上記の液晶パネル１０が下ケース部材２０及び上ケース部材３０に収容された状態で実装されている。液晶パネル１０の液晶表示領域は、表示部１０６において視認できるように構成されている。回路基板１には通信回路が形成されているとともに、上記操作部１０２に配列された操作ボタンが実装され、また、音発生部１０４に対応する位置にスピーカ素子が、音検出部１０５に対応する位置にマイク素子がそれぞれ実装され、さらに、種々の機能を実現するための演算処理回路やメモリ素子等からなるマイクロプロセッサユニット（ＭＰＵ）が実装されている。
【００４５】
本実施形態の携帯電話１００の場合、例えば、下ケース部材２０を上記携帯電話の前面パネルとして兼用するように、表示部１０６の端部から操作部１０２へ向けて延長した形状に構成してもよい。また、上ケース部材３０を表示部１０６の外面パネルとして用いてもよい。これらのようにケース部材を外面に露出したパネルの一部として構成することによって電子機器の薄型化を図ることが可能になる。
【００４６】
【発明の効果】
以上、説明したように本発明によれば、第１ケース部材と第２ケース部材とが相互に当接する当接面領域に凸部と開口部が形成され、凸部の先端が変形されることによって両ケース部材が係合し、相互に固定されるように構成されているので、変形された凸部の突出量以外に係合構造のためにケース体の厚さを確保する必要がなくなるとともに、ケース体の側部に係合構造を設ける必要もなくなるので、装置全体の小型化及び薄型化を図ることができる。
【図面の簡単な説明】
【図１】本発明に係る電気光学装置の第１実施形態である液晶表示装置の平面図である。
【図２】第１実施形態の右側面図である。
【図３】第１実施形態における図１の III−III線に沿って切断した状態を示す縦断面図である。
【図４】第１実施形態における下ケース部材の平面図である。
【図５】第１実施形態における凸部と開口部との係合部分の処理手順を示す説明図（ａ）及び（ｂ）である。
【図６】本発明に係る電気光学装置の第２実施形態である液晶表示装置において、下ケース部材に対して液晶パネルを介在させて上ケース部材を嵌合させた状態を示す平面図である。
【図７】第２実施形態において、下ケース部材と上ケース部材とを相対的にスライドさせて液晶パネルを位置決めさせた状態を示す平面図である。
【図８】第２実施形態において、下ケース部材と上ケース部材とを係合固定させた状態を示す平面図である。
【図９】第２実施形態に対する凸部と開口部との変形例を用いた係合手順を示す説明図（ａ）〜（ｃ）である。
【図１０】第３実施形態の電子機器を示す図である。
【符号の説明】
１０液晶パネル
１１，１２パネル基板
１１ａ基板張出部
２０下ケース部材
２０ａ収容凹部
２１コネクタ
２２導光部
２３枠状部
２３ａ内側面
２７凸部
２７ａ頭部
３０上ケース部材
３０ａ表示窓部
３０ｂ開口部
３４折曲縁部
３４ａ内面
４０成形部材
４０ａ成形用凹部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electro-optical device and a method for manufacturing the same, and more particularly to an electronic apparatus using the electro-optical device, and more particularly, to an electro-optical device housing structure in which an electro-optical panel is housed in a case body.
[0002]
[Prior art]
In general, in a conventional liquid crystal display device, a liquid crystal panel is formed by bonding two panel substrates made of a transparent material such as glass or plastic through a sealing material and enclosing a liquid crystal therebetween. The panel is held and fixed in various ways. For example, by placing this liquid crystal panel on a light guide portion of a lower case member having a light guide function made of a transparent acrylic resin or the like, and covering the upper case member made of a stainless steel plate or the like thereon, In some cases, the liquid crystal panel is accommodated in a case body composed of a lower case member and an upper case member. In this case, the lower case member and the upper case member engage the convex portion and the concave portion, engage the hook and the stepped portion, or bend the claw-like portion provided in one case member and They are fixed to each other by a method such as engaging with a stepped portion. These engagement structures are usually provided on the side surfaces of the lower case member and the upper case member on the side surface side of the liquid crystal panel.
[0003]
In addition, the upper case member is covered with the liquid crystal panel placed on the lower case member, and an engagement portion such as a hook formed so as to protrude downward from the side surface portion of the upper case member is formed on the circuit board. There is also a method of fixing a liquid crystal panel accommodated in a case body on a circuit board by engaging with an engaged portion such as a hole.
[0004]
[Problems to be solved by the invention]
However, in the above conventional liquid crystal device, the side surface portion of the lower case member and the side surface portion of the upper case member are overlapped in the thickness direction, and the lower case member and the upper case member are fixed by the engagement structure provided on both side surface portions. Or by fixing the engaging part provided on the side part of the upper case member directly to the circuit board, so that there is enough space in the thickness direction for the engaging structure. It is difficult to reduce the thickness of the entire liquid crystal device, and it is necessary to provide an engagement structure on the side surface, so that it is difficult to reduce the planar dimension of the case body. is there.
[0005]
In particular, due to the recent progress in miniaturization of various devices such as portable devices, there has been a strong demand for miniaturization and thinning of liquid crystal devices, and the thickness of the panel substrate constituting the liquid crystal panel has also decreased rapidly. Tend to. Accordingly, the liquid crystal device is also required to be thin, and further, the width of the protrusion outside the liquid crystal display region is required to be reduced (narrowed frame). Therefore, depending on the structure of the case body that accommodates the liquid crystal panel. The dimensions of liquid crystal devices are greatly affected.
[0006]
Therefore, the present invention solves the above-mentioned problems, and the problem is that in various liquid crystal devices and other various electro-optical devices, by changing the engagement method of the case body that houses the electro-optical panel, An object of the present invention is to provide an electro-optical panel housing structure that does not hinder downsizing and thinning.
[0007]
[Means for Solving the Problems]
The electro-optical device manufacturing method of the present invention includes an electro-optical panel in which an electro-optical material is disposed on a substrate, a first case member that supports the electro-optical panel from the back side, and the electro-optical panel from the front side. A method of manufacturing an electro-optical device including a second case member to be supported, wherein the first case member and the second case member include the first case member and the second case member in a state in which the electro-optical panel is accommodated. A contact surface area is provided that can contact each other with the second case member, and a convex portion is formed on one of the first case member and the second case member in the corresponding contact surface area, and the other An opening is formed at a position corresponding to the convex portion in the direction extending in a predetermined direction, and the first case member is in contact with the electro-optical panel on one side of the predetermined direction. Set up The second case member is provided with a second contact portion that contacts the electro-optical panel on the other side in the predetermined direction, and the electro-optical panel is inserted into the opening through the convex portion. After being accommodated in the first case member and the second case member, the first case member and the second case member are slid relative to each other in the predetermined direction, and the electro-optical panel is moved to the first contact portion. In addition, the first case member and the second case member are fixed by deforming the tip of the convex portion while being sandwiched between the second contact portions.
[0008]
According to the present invention, the convex portion and the opening are formed in the contact surface area where the first case member and the second case member are in contact with each other, and both the case members are formed by deforming the tips of the convex portions. Since it is fixed, it is not necessary to secure the thickness of the case body for the engagement structure other than the protruding amount of the deformed convex part, and it is not necessary to provide the engagement structure on the side part of the case body. Thus, an electro-optical device that can be reduced in size and thickness can be manufactured. Moreover, since the opening is formed to extend in a predetermined direction, the first case member and the second case member can be slid in a predetermined direction with the convex portion passing through the opening. Furthermore, each of the first case member and the second case member is provided with a first contact portion and a second contact portion that are in contact with both sides of the electro-optical panel in a predetermined direction. Therefore, the electro-optical panel can be positioned in a predetermined direction by sliding both case members in a state where the convex portion is passed through the opening. Since both the case members can be fixed by deforming the tips of the convex portions with the electro-optical panel positioned in a predetermined direction, the electro-optical device can be easily assembled.
[0009]
In this invention, you may deform | transform the front-end | tip of the said convex part so that the surface of the front-end | tip of this convex part may become a convex curve shape. According to this means, the stress received by the tip of the convex portion can be dispersed on the surface of the convex curved surface, so that the engagement strength can be increased while reducing the protruding amount of the convex portion after deformation.
[0010]
In the present invention, the tip of the convex portion may be deformed so that the tip of the convex portion is hemispherical. According to this means, the stress received by the tip of the convex portion can be dispersed toward the entire hemispherical surface.
[0011]
In the present invention, the tip of the convex portion may be deformed by bringing a molding member having a molding concave portion having a predetermined shape into contact with the tip of the convex portion. According to this means, the tip of the convex portion can be easily deformed into a shape corresponding to the concave portion for molding by heating the concave portion for molding or applying vibration from the concave portion for molding.
[0012]
In this invention, you may deform | transform the front-end | tip of the said convex part by giving a vibration to the front-end | tip of the said convex part. According to this means, since it is not necessary to apply a large stress or to heat, the possibility of damaging the electro-optical panel can be reduced.
[0013]
The electronic apparatus of the present invention includes the electro-optical device manufactured by the above manufacturing method.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the electro-optical device according to the invention will be described in detail with reference to the accompanying drawings. Each of the embodiments described below shows a specific example of a liquid crystal device using a liquid crystal as an electro-optic material. However, the present invention is not limited to the liquid crystal device, but includes various devices such as an electroluminescence device and a plasma display device. This can be applied to the electro-optical device.
[0019]
[First Embodiment]
1 is a plan view showing the appearance of the liquid crystal display device according to the first embodiment of the present invention, FIG. 2 is a right side view showing the appearance of the first embodiment, and FIG. 3 is a longitudinal section of the first embodiment. FIG. 4 is a plan view (a cross-sectional view taken along the line III-III in FIG. 1), and FIG. 4 is a plan view showing the shape of the lower case member.
[0020]
As shown in FIG. 3, the present embodiment includes a liquid crystal panel 10 in which liquid crystal (not shown) is sealed between a panel substrate 11 made of glass or the like and the panel substrate 12 with a sealing material. The liquid crystal panel 10 is accommodated in a case body constituted by a lower case member 20 made of a transparent resin such as an acrylic resin and an upper case member 30 made of a stainless steel plate or the like. The panel substrate 11 of the liquid crystal panel 10 is provided with a substrate overhanging portion 11a that projects outward from the panel substrate 12, and is pulled out from the liquid crystal sealing region of the liquid crystal panel 10 on the surface of the substrate overhanging portion 11a. A wiring pattern (not shown) is formed. An integrated circuit chip 14 that is a liquid crystal driving circuit is mounted on the wiring pattern. In addition, the wiring pattern has an input terminal (not shown) formed at the end of the substrate overhanging portion 11a, and a connector 21 described later is in conductive contact with the input terminal.
[0021]
As shown in FIG. 3 and FIG. 4, the lower case member 20 has a rectangular planar shape that is slightly larger than the liquid crystal panel 10 and has a rectangular accommodating recess 20 a that receives the liquid crystal panel 10. A penetrating connector housing hole 20b is formed in the peripheral edge of the housing recess 20a. A connector 21 is fitted in the connector housing hole 20b.
[0022]
A portion of the lower case member 20 that constitutes the bottom surface of the housing recess 20a on which the liquid crystal panel 10 is placed serves as a light guide portion 22, and light introduced from the end surface portion 22b to the outer surface 22a of the light guide portion 22 is provided. Is formed in a concavo-convex shape for uniformly discharging to the front side, that is, the liquid crystal panel side (the upper side in FIG. 3). A white reflector or the like may be attached in place of the uneven shape. When the liquid crystal display device of the present embodiment is installed on the end face portion 22b, LEDs (light emitting diodes) mounted on a circuit board (not shown) are arranged to face each other.
[0023]
As shown in FIG. 4, a frame-shaped portion 23 along one side of a rectangular outer edge and a frame-shaped portion 24 whose one end is in contact with the frame-shaped portion 23 are formed around the housing recess 20 a in the lower case member 20. Has been. On the side facing the frame-shaped part 24, a projecting part 25 projecting outwardly in the form of a tongue and a pair of elastic arm parts 26, 26 provided so as to face each other on both sides of the projecting part 25 are formed. Has been. The elastic arm portion 26 has a shape extending along the outer edge with respect to the light guide portion 22, presses the side surface of the liquid crystal panel 10 accommodated in the accommodating recess 20 a by the tip portion, and is provided on the opposite side. The liquid crystal panel 10 is configured so as to be pressed against the frame-like portion 24 so as to position the liquid crystal panel 10 in the horizontal direction of the drawing in the housing recess 20a. The front surface portions of the frame-like portions 23, 24, and 26 surrounding the housing recess 20a serve as contact surface regions that contact the upper case member 30 even when the liquid crystal panel 10 is housed in the housing recess 20a. .
[0024]
The frame portion 23 of the lower case member 20, the end portion 24 a that widens at the end of the frame portion 24, and the end portion that widens at the base of the elastic arm portion 26, constituting this contact surface area. A plurality of shaft-like convex portions 27 extending to the front surface side (the upper side in the drawing shown in FIG. 3) are formed on each front surface portion of 26a. These convex portions 27 initially project straightly upward from the respective front surface portions as shown in FIG.
[0025]
Further, the lower case member 20 is formed with an inner side surface 23a that faces the accommodating recess 20a in the frame-like portion 23, and the inner side surface 23a comes into contact with the end surface of the substrate overhanging portion 11a of the liquid crystal panel 10, and the liquid crystal panel 10 Is to be positioned.
[0026]
On the other hand, the upper case member 30 is formed by bending a plate material by pressing or the like, and as shown in FIG. 1, a display window portion 30a having a rectangular shape is disposed at the center. An effective display area of the liquid crystal panel is recognized from the display window. A cover plate 31 having a slightly wider width is formed above the display window 30a (the portion covering the substrate overhanging portion 11a of the liquid crystal panel). A liquid crystal panel is formed at the left and right ends of the display window 30a. Folded edges 32 and 33 are provided that are bent to the side of the liquid crystal panel so as to cover the left and right sides of the liquid crystal panel. In addition, a bent edge 34 that is bent toward the side surface of the liquid crystal panel is provided on the opposite side of the display window 30a as viewed from the cover plate portion 31 so as to cover the lower surface of the liquid crystal panel. The inner surface 34a of the bent edge 34 is in contact with the end of the liquid crystal panel 10 on the opposite side to the substrate overhanging portion 11a (the lower surface of the liquid crystal panel).
[0027]
A plurality of openings 30 b are formed around the display window 30 a of the upper case member 30. These openings 30b are respectively formed at positions corresponding to the protrusions 27 formed in the lower case member 20 and are sized to pass the protrusions 27.
[0028]
In the present embodiment, first, polarizing plates 11p, 12p, and other retardation films, reflection films, and the like are attached on the outer surfaces of the panel substrates 11, 12 of the liquid crystal panel 10, and then the liquid crystal panel 10 is moved down. The housing member 20 is housed in the housing recess 20a. Then, the upper case member 30 is placed over the liquid crystal panel 10, and the convex portions 27 of the lower case member 20 are respectively inserted into the openings 30 b of the upper case member 30 as shown in FIG. Set as follows. At this time, an end portion (upper side surface of the liquid crystal panel) of the substrate overhanging portion 11a in the liquid crystal panel 10 abuts on the inner side surface 23a, and an end portion of the liquid crystal panel 10 opposite to the substrate overhanging portion 11a is the inner surface. Both case members are pressed against the liquid crystal panel 10 so as to be in contact with 34a. That is, the liquid crystal panel is positioned in the vertical direction of the liquid crystal panel (the vertical direction in FIG. 1) by the lower case member 20 and the upper case member 30.
[0029]
The liquid crystal panel 10 can be incorporated into the case body by various methods other than the above. For example, after attaching the liquid crystal panel 10 to the inner surface of the upper case member 30 with a double-sided tape, an adhesive, or the like, the upper case member 30 and the liquid crystal panel 10 may be set in the lower case member 20. Further, the liquid crystal panel 10 may be bonded onto the inner surface of the light guide portion 22 of the lower case member 20.
[0030]
Next, as shown in FIG. 5B, the molding recess 40a is brought into contact with the tip of the projection 27 using the molding member 40 provided with a semispherical molding recess 40a at the tip, and the molding member 40 is brought into contact. Apply ultrasonic vibration to. The ultrasonic vibration is transmitted from the molding concave portion 40a to the convex portion 27, and the convex portion 40 is deformed by melting or softening due to vibration, and a hemispherical head portion 27a is formed following the shape of the molding concave portion 40a. The At this time, since the inner diameter D of the molding recess 40a is formed larger than the inner diameter of the opening 30b, the head 27a has an outer diameter larger than the inner diameter of the opening 30b. By deforming the convex portion by ultrasonic vibration in this way, it is not necessary to apply large stress or heat to the case body, so that the possibility of damaging the liquid crystal panel can be reduced.
[0031]
Thus, when the head portion 27a of the convex portion 27 is molded, as shown in FIGS. 1 and 2, the second case member 30 is fixed to the first case member 20 by the head portion 27a. As a result, the liquid crystal panel 10 is held in a state of being positioned inside the case body including the first case member 20 and the second case member 30.
[0032]
In the present embodiment, the convex portion 27 formed on the surface of the frame-like portion 23 of the lower case member 20 is passed through the opening portion 30 b formed in the cover plate portion 31 of the upper case body 30, and the convex portion 27. Since the lower case member 20 and the upper case member 30 are fixed by crimping the tip, it is necessary to provide an engagement structure such as a hook extending in the thickness direction of the case member at the side surface portion of each case member. Accordingly, the thickness of the case member itself can be reduced in accordance with the thinned liquid crystal panel, and the amount of protrusion of the case member to the side can be reduced and the size can be reduced. Moreover, since both case members are being fixed by the engagement of the convex part 27 and the opening part 30b by caulking, it is possible to reduce the thickness of the engaging part itself by limiting the protrusion amount of the convex part 27. it can. Therefore, it is possible to form a case body structure that fully utilizes the downsizing and thinning of the liquid crystal panel, and the liquid crystal display device as a whole can be easily downsized and thinned.
[0033]
In particular, in the present embodiment, since the tip of the convex portion 27 is processed into a predetermined predetermined shape by the molding member 40, the strength of the crimped portion is stabilized, and the hemispherical (convex curved surface) head 27a is formed. Since the stress applied to the caulking portion can be dispersed over the entire hemispherical surface (convex curved surface), the strength of the head 27a can be increased without increasing the thickness and the amount of overhang. Can be improved. On the other hand, when the convex head shape is formed into a flat plate shape, for example, the stress received from the upper case member 30 is concentrated on the root portion of the protruding portion of the head. Compared to the case of the head portion 27a, the root portion is likely to break.
[0034]
[Second Embodiment]
Next, a liquid crystal device according to a second embodiment of the invention will be described with reference to FIGS. This embodiment includes a structure in which the same liquid crystal panel 10 as that of the first embodiment described above is accommodated in a case body composed of a lower case member 40 and an upper case member 50 that are basically the same as those of the first embodiment. ing. The lower case member 40 is provided with a frame-shaped portion 43. The frame-shaped portion 43 is formed with an inner side surface 43a configured to come into contact with the end portion of the liquid crystal panel 10 as in the first embodiment. Yes. The upper case member 50 is provided with a display window portion 50a, and an end portion of the upper case member 50 is provided with a bent edge portion 54 similar to that of the first embodiment. The inner surface 54 a is configured to contact the other end of the liquid crystal panel 10.
[0035]
The lower case member 40 is provided with frame-like portions 43, 44, 45 that constitute the contact surface area similar to that of the first embodiment, and the front surface portion of the frame-like portion 43 and the end portion of the frame-like portion 44. Convex portions 47 are formed on the front surface portion of 44a and the front surface portion of the end corner portion 45a of the frame-shaped portion 45, respectively. On the other hand, the upper case member 50 is formed with an opening 50 b corresponding to the convex portion 47. The opening 50b of the present embodiment has an oval shape extending in the illustrated vertical direction (that is, the direction in which the liquid crystal panel 10, the inner side surface 43a, and the inner surface 54a abut).
[0036]
In the present embodiment, initially, the lower case member 40 and the upper case member 50 are not fixed to each other, and therefore the liquid crystal panel 10 is not positioned in the vertical direction in the figure in the case body as shown in FIG. As described above, the lower case member 40 and the upper case member 50 are slightly displaced from each other in the illustrated vertical direction (that is, the distance between the inner side surface 43a and the inner surface 54a is larger than the vertical width of the liquid crystal panel 10 in the illustrated vertical direction). Even in the enlarged state, the convex portion 47 can be inserted through the extended opening 50b. That is, since the opening 50b is formed in a shape extending in the vertical direction in the figure, the margin of the fitted state between the lower case member 40 and the upper case member 50 can be increased, and as a result, assembly work can be performed. Can be easily.
[0037]
Next, from the state shown in FIG. 6, the lower case member 40 is slid relatively upward in the drawing and the upper case member 50 is relatively slid downward in the drawing, so that the liquid crystal panel 10 has an inner surface 43a and an inner surface as shown in FIG. 54a. At this time, the liquid crystal panel 10 is positioned by the case body. In this state, while maintaining the positional relationship between the lower case member 40 and the upper case member 50, as described in the first embodiment, the tip of the convex portion 47 is deformed, and as shown in FIG. A head 47a wider than the width of 50b is formed, and the projection 47 and the opening edge of the opening 50b are completely fixed.
[0038]
In the present embodiment, the lower case member 40 and the upper case member 50 are combined with each other by forming the opening 50b in an extended shape (that is, in a state where the convex portion 47 is inserted through the opening 50b). The liquid crystal panel 10 can be positioned by sliding both case members in a predetermined direction, and the tip of the convex portion 47 is deformed in this positioning state to deform the lower case member 40 and the upper case member 50. The liquid crystal panel 10 can be easily attached to the case body, and the liquid crystal panel 10 can be positioned reliably regardless of the dimensional accuracy of the components. Both case members can be reliably engaged and fixed in a state where the liquid crystal panel 10 is accurately positioned. The shape after the tip of the convex portion 47 is deformed is wider than the width of the opening 50b and only needs to be engaged with the opening 50b. However, as in the first embodiment. It is preferable to form a hemispherical head having a convex curved surface.
[0039]
The relationship between the convex portion and the opening portion can be variously changed. For example, as shown in FIG. 9, when an extended opening 70b corresponding to the protrusion 67 is provided, a part of the opening 70b has an inner diameter or width that is slightly larger than the outer diameter of the protrusion 67. While forming the wide part 70b-1, let the remaining part be the extension part 70b-2 which has a width | variety corresponding to the outer diameter of the convex part 67 substantially. At this time, when the upper case member provided with the opening 70b is fitted into the lower case member (not shown) provided with the convex portion 67, as shown in FIG. If the convex portion 67 is inserted into the portion 70b-1, the operation can be easily performed.
[0040]
In the case of assembling a liquid crystal display device provided with the convex portion 67 and the opening 50b, the convex portion 67 is inserted into the wide portion 70b-1 as shown in FIG. As shown in FIG. 9, the tip of the convex portion 67 is deformed to form a head portion 67a, and then, as shown by arrows in FIG. It is slid relatively until it will be in the state positioned by the case member. At this time, the convex part 67 enters the extension part 70b-2 from the wide part 70b-1, and the sliding direction is regulated by the extension part 70b-2.
[0041]
In addition, the convex part 67 and the opening part 70b are fitted similarly to the method shown in 2nd Embodiment, without performing the engagement procedure of said convex part 67 and the opening part 70b by the method shown in FIG. In this state, the two case members may be slid relative to each other first so that the liquid crystal panel is positioned, and then the tip of the convex portion 67 is deformed to form the head 67a.
[0042]
Note that the electro-optical device and the manufacturing method thereof according to the present invention are not limited to the illustrated examples described above, and it is needless to say that various modifications can be made without departing from the gist of the present invention. For example, the lower case member and the upper case member are not limited to those provided exclusively for the case member, and may be, for example, a part of a circuit board or a part of a device case body. Also good. In addition, each case member is not limited to a single member, and may be constituted by a plurality of parts. For example, the lower case member may be constituted by a base and a light guide plate.
[0043]
[Third Embodiment]
Next, a structural example of an electronic apparatus incorporating the above-described liquid crystal display device will be described as a third embodiment with reference to FIG. This embodiment is a mobile phone. On the outer surface of the outer case 101, there are an operation unit 102 in which a large number of operation buttons are arranged, an antenna 103 formed so as to be freely movable, a sound generation unit 104, and a sound detection unit 105. And a display unit 106 are provided.
[0044]
The circuit board 1 is installed inside the exterior case 101, and the liquid crystal panel 10 is mounted on the circuit board 1 in a state where the liquid crystal panel 10 is accommodated in the lower case member 20 and the upper case member 30. The liquid crystal display area of the liquid crystal panel 10 is configured to be visible on the display unit 106. A communication circuit is formed on the circuit board 1 and operation buttons arranged in the operation unit 102 are mounted. A speaker element corresponds to the sound detection unit 105 at a position corresponding to the sound generation unit 104. A microphone element is mounted at each position, and a microprocessor unit (MPU) including an arithmetic processing circuit and a memory element for realizing various functions is mounted.
[0045]
In the case of the mobile phone 100 of the present embodiment, for example, the lower case member 20 may be configured to extend from the end of the display unit 106 toward the operation unit 102 so as to be used as the front panel of the mobile phone. Good. Further, the upper case member 30 may be used as an outer panel of the display unit 106. By configuring the case member as a part of the panel exposed to the outside as described above, it is possible to reduce the thickness of the electronic device.
[0046]
【The invention's effect】
As described above, according to the present invention, the protrusion and the opening are formed in the contact surface area where the first case member and the second case member contact each other, and the tip of the protrusion is deformed. Since both the case members are engaged with each other and are fixed to each other, it is not necessary to secure the thickness of the case body for the engagement structure other than the protruding amount of the deformed convex portion. Since there is no need to provide an engagement structure on the side portion of the case body, the entire apparatus can be reduced in size and thickness.
[Brief description of the drawings]
FIG. 1 is a plan view of a liquid crystal display device which is a first embodiment of an electro-optical device according to the invention.
FIG. 2 is a right side view of the first embodiment.
3 is a longitudinal sectional view showing a state cut along the line III-III in FIG. 1 in the first embodiment. FIG.
FIG. 4 is a plan view of a lower case member in the first embodiment.
FIGS. 5A and 5B are explanatory views (a) and (b) illustrating a processing procedure for an engagement portion between a convex portion and an opening in the first embodiment. FIGS.
FIG. 6 is a plan view showing a state in which an upper case member is fitted to a lower case member with a liquid crystal panel interposed in a liquid crystal display device that is a second embodiment of the electro-optical device according to the invention. .
FIG. 7 is a plan view showing a state in which the liquid crystal panel is positioned by relatively sliding the lower case member and the upper case member in the second embodiment.
FIG. 8 is a plan view showing a state where the lower case member and the upper case member are engaged and fixed in the second embodiment.
FIGS. 9A to 9C are explanatory views (a) to (c) illustrating an engagement procedure using a modification example of a convex portion and an opening portion with respect to the second embodiment.
FIG. 10 is a diagram illustrating an electronic apparatus according to a third embodiment.
[Explanation of symbols]
10 LCD panel
11, 12 Panel substrate
11a Substrate overhang
20 Lower case member
20a receiving recess
21 Connector
22 Light guide
23 Frame-shaped part
23a inner surface
27 Convex
27a head
30 Upper case member
30a Display window
30b opening
34 Bending edge
34a inner surface
40 Molded parts
40a Recess for molding

Claims

An electro-optical panel including an electro-optical material disposed on a substrate, a first case member that supports the electro-optical panel from the back side, and a second case member that supports the electro-optical panel from the front side. An optical device manufacturing method comprising:
The first case member and the second case member are provided with contact surface regions in which the first case member and the second case member can contact each other in a state in which the electro-optical panel is accommodated. In the contact area, a convex portion is formed on one of the first case member and the second case member, and an opening is formed extending in a predetermined direction at a position corresponding to the convex portion on the other side. Has been
The first case member is provided with a first contact portion that contacts the electro-optical panel on one side in the predetermined direction, and the second case member has the electro-optical panel on the other side in the predetermined direction. A second abutting portion that abuts on the
The electro-optical panel is accommodated in the first case member and the second case member through the convex portion through the opening, and then the first case member and the second case member are mutually connected in the predetermined direction. The first case member and the second case member are slid to deform the tip of the convex portion in a state where the electro-optical panel is sandwiched between the first contact portion and the second contact portion. A method of manufacturing an electro-optical device, comprising fixing.

2. The method of manufacturing an electro-optical device according to claim 1, wherein the tip of the convex portion is deformed so that the surface of the tip of the convex portion has a convex curved surface shape.

3. The method of manufacturing an electro-optical device according to claim 2, wherein the tip of the convex portion is deformed so that the tip of the convex portion is hemispherical.

4. The electricity according to claim 1, wherein the tip of the convex portion is deformed by bringing a molding member having a molding concave portion of a predetermined shape into contact with the tip of the convex portion. Manufacturing method of optical device.

5. The method of manufacturing an electro-optical device according to claim 1, wherein the tip of the convex portion is deformed by applying vibration to the tip of the convex portion. 6.

An electronic apparatus comprising the electro-optical device manufactured by the manufacturing method according to claim 1.