JP2007232812A - Case of electro-optical display apparatus - Google Patents

Case of electro-optical display apparatus Download PDF

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Publication number
JP2007232812A
JP2007232812A JP2006051543A JP2006051543A JP2007232812A JP 2007232812 A JP2007232812 A JP 2007232812A JP 2006051543 A JP2006051543 A JP 2006051543A JP 2006051543 A JP2006051543 A JP 2006051543A JP 2007232812 A JP2007232812 A JP 2007232812A
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Prior art keywords
case
outer case
locking
holder
side plate
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Japanese (ja)
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Yasuo Yamaguchi
泰生 山口
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Kyocera Display Corp
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Kyocera Display Corp
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Priority to JP2006051543A priority Critical patent/JP2007232812A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133322—Mechanical guidance or alignment of LCD panel support components
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/46—Fixing elements
    • G02F2201/465—Snap -fit

Abstract

<P>PROBLEM TO BE SOLVED: To securely fix a holder case to an outer case and also to facilitate its removal operation. <P>SOLUTION: In the case of the electro-optical display apparatus including: the outer case 10 composed of a metal plate; a holder case 20 composed of synthetic resin material, in which a display panel is accommodated in a concave section 21 and fastened in the outer case; a locking means composed of a locking hole 14 at a side plate 13 side of the outer case 10 and a locking projection 24 at a side frame 23 side of the holder case 20, a contact surface 231 is formed as a positioning restriction surface which contacts the side plate 13 in a top end section 231 entering inside the outer case 10 preceding to the locking projection 24 in the side frame 32 having the locking projection 24, and a gap G is provided for inserting a tool such as a minus driver between a bottom end section 232 entering inside the outer case 10 following to the locking projection 24, and the side plate 13. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、電気光学表示装置の筐体に関し、さらに詳しく言えば、外装ケースと、内部に表示パネルを保持して外装ケース内に嵌合係止されるホルダケースとを含む電気光学表示装置の筐体において、外装ケースに対するホルダケースの係止手段を必要に応じて簡単に解除可能とする技術に関するものである。   The present invention relates to a housing of an electro-optic display device, and more specifically, an electro-optic display device including an exterior case and a holder case that holds a display panel therein and is fitted and locked in the exterior case. The present invention relates to a technique for enabling a holder case locking means to an exterior case to be easily released as required.

電気光学表示装置のうち代表的な液晶表示装置の筐体は、一般的な構成として、ベゼルケースとも呼ばれる外装ケースと、液晶表示装置の構成部品を保持するホルダケースとを含み、ホルダケース内に液晶表示装置の構成部品である例えば液晶パネルやバックライトなどが収納され、その後にホルダケースが外装ケース内にはめ込まれる。   The housing of a typical liquid crystal display device among electro-optic display devices includes, as a general configuration, an exterior case, also called a bezel case, and a holder case that holds components of the liquid crystal display device. A component part of the liquid crystal display device, for example, a liquid crystal panel, a backlight, or the like is accommodated, and then a holder case is fitted into the outer case.

その従来例を図３の分解斜視図により説明すると、外装ケース１０には、一方の面１１に表示窓１２を有し、その一方の面１１の４辺から同一方向にほぼ直角に折り曲げられた側板１３により、他方の面が開口部とされた全体が金属板よりなる額縁型のケースが用いられる。   The conventional case will be described with reference to the exploded perspective view of FIG. 3. The exterior case 10 has a display window 12 on one surface 11 and is bent substantially at right angles in the same direction from four sides of the one surface 11. A frame type case is used in which the entire side plate 13 is made of a metal plate.

ホルダケース２０は、底板２２およびその４辺に立設された側枠２３により囲まれた収納凹部２１を有し、その全体が合成樹脂材により一体に形成される。透過型もしくは半透過型の場合、収納凹部２１内に図示しないバックライトと液晶パネルとが、この順序で収納される。したがって、ホルダケース２０を外装ケース１０内に組み込むと、液晶パネルの表示部が外装ケース１０の表示窓１２の部分に配置される。   The holder case 20 has a storage recess 21 surrounded by a bottom plate 22 and side frames 23 erected on its four sides, and the whole is integrally formed of a synthetic resin material. In the case of the transmission type or the semi-transmission type, a backlight and a liquid crystal panel (not shown) are stored in this order in the storage recess 21. Therefore, when the holder case 20 is incorporated in the outer case 10, the display portion of the liquid crystal panel is disposed in the display window 12 portion of the outer case 10.

外装ケース１０内でのホルダケース２０のガタつきや脱落を防止するため、ホルダケース２０を外装ケース１０内に固定する係止手段が用いられるが、多くの場合、その係止手段には、外装ケース１０内にホルダケース２０をはめ込む際、それに伴って自動的に噛み合う係止孔１４と係止突起２４との組合せからなるワンタッチ式の係止手段が用いられている（例えば、特許文献１参照）。   In order to prevent the holder case 20 from rattling or falling off in the outer case 10, locking means for fixing the holder case 20 in the outer case 10 is used. When the holder case 20 is fitted into the case 10, a one-touch type locking means comprising a combination of a locking hole 14 and a locking projection 24 that automatically engage with each other is used (see, for example, Patent Document 1). ).

図３に示すように、通常、係止孔１４は金属製の外装ケース１０の側板１３側に設けられ、係止突起２４は合成樹脂製のホルダケース２０の側枠２３側に設けられる。この例では、筐体の１辺につき、係止孔１４と係止突起２４の対が３対設けられているが、少なくとも１対あればよい。   As shown in FIG. 3, the locking hole 14 is usually provided on the side plate 13 side of the metal outer case 10, and the locking projection 24 is provided on the side frame 23 side of the holder case 20 made of synthetic resin. In this example, three pairs of the locking hole 14 and the locking projection 24 are provided for each side of the housing, but at least one pair is sufficient.

また、この種のワンタッチ式係止手段は、外装ケース１０とホルダケース２０の対向する２対の２辺のうち、少なくとも一方の対をなす２辺に配置されるが、図３には作図の都合上、その１辺１３ａ，２３ａ側の係止孔１４と係止突起２４のみが示されている。   Further, this kind of one-touch type locking means is arranged on at least two sides of at least one of two opposing pairs of the outer case 10 and the holder case 20, but FIG. For convenience, only the locking holes 14 and the locking projections 24 on the side 13a, 23a side are shown.

係止孔１４は単なる貫通孔であるが、係止突起２４はホルダケース２０を外装ケース１０に向けてはめ込む方向（図４の矢印Ａ方向）に沿って順テーパとなるスロープ面２４１と、スロープ面２４１の終端で直角に立ち下がる係止段部２４２とを備える矢尻状として形成される。   The locking hole 14 is merely a through-hole, but the locking protrusion 24 has a slope surface 241 that has a forward taper along the direction in which the holder case 20 is fitted toward the outer case 10 (the direction of arrow A in FIG. 4), and a slope. It is formed as an arrowhead shape having a locking step 242 that falls at a right angle at the end of the surface 241.

これによれば、外装ケース１０に対してホルダケース２０を強制的に押し込む際の側板１３および／または側枠２３の弾性変形により、係止突起２４が側板１３の内面を乗り越えて図４に示すように係止孔１４に嵌合するため、ホルダケース２０を外装ケース１０内にしっかりと固定することができる。   According to this, the locking projection 24 gets over the inner surface of the side plate 13 due to the elastic deformation of the side plate 13 and / or the side frame 23 when the holder case 20 is forcibly pushed into the outer case 10 and is shown in FIG. Thus, the holder case 20 can be firmly fixed in the outer case 10 because it fits into the locking hole 14.

特開平１０−２４６８８１号公報Japanese Patent Laid-Open No. 10-246881

ところで、実際の組立工程では、上記のようにして外装ケース１０内にホルダケース２０を固定したのち最終工程に至るまでの間で、例えば液晶パネルの表示状態やバックライトの照度調整、また異物侵入の有無検査など行うため、外装ケース１０からホルダケース２０を取り外さなければならないことがあり、その際に次のような問題が生ずる。   By the way, in the actual assembly process, for example, the display state of the liquid crystal panel, the illuminance adjustment of the backlight, and the intrusion of foreign matter, after the holder case 20 is fixed in the outer case 10 as described above until the final process. In order to perform the presence / absence inspection or the like, the holder case 20 must be removed from the outer case 10, and the following problems occur.

すなわち、通常の設計では、外装ケース１０とホルダケース２０は、それらの間に隙間が生じないように設計されるため、外装ケース１０からホルダケース２０を取り外す際、その側板１３と側枠２３との間にマイナスドライバなどの工具を入れてこじ開けることができない。無理にこじ開けようとすると、傷が付いたりケースに破損が生ずることになりかねない。   That is, in the normal design, the outer case 10 and the holder case 20 are designed so that there is no gap between them. Therefore, when the holder case 20 is removed from the outer case 10, the side plate 13 and the side frame 23 You cannot put a tool such as a flathead screwdriver in between. If you try to force it open, it may cause scratches or damage to the case.

別の方法として、やはりマイナスドライバなどの工具で係止突起２４を強制的に押し込んで係止孔１４から外す方法があるが、係止突起２４は合成樹脂であるため、係止突起２４が潰れてしまうことがある。特に取り外しが数回にわたって行われるような場合には、係止突起２４の潰れがはげしくなり、ホルダケース２０を交換しなければならない事態が生ずる。   As another method, there is a method of forcibly pushing the locking projection 24 with a tool such as a flat-blade screwdriver to remove it from the locking hole 14, but the locking projection 24 is made of synthetic resin, so that the locking projection 24 is crushed. May end up. In particular, when the removal is performed several times, the locking protrusions 24 are crushed and a situation occurs in which the holder case 20 must be replaced.

したがって、本発明の課題は、外装ケースと、内部に表示パネルを保持して外装ケース内に嵌合係止されるホルダケースとを含む電気光学表示装置の筐体において、外装ケースに対してホルダケースを確実に固定できる一方で、その取り外し作業も容易に行えるようにすることにある。   Therefore, an object of the present invention is to provide a holder for an exterior case in an electro-optical display device housing that includes an exterior case and a holder case that holds and holds the display panel inside the exterior case. It is to make it possible to easily remove the case while securing the case securely.

上記課題を解決するため、本発明は、請求項１に記載されているように、一方の面に表示パネルの表示部に対応する表示窓を有し、上記一方の面の４辺からほぼ直角に折り曲げられた側板により他方の面が開口部とされた全体が金属板よりなる額縁型の外装ケースと、底板および上記底板の４辺にほぼ直角に形成された側枠により囲まれた凹部内に上記表示パネルが収納され、上記凹部の開口面側から上記外装ケース内に嵌合される全体が合成樹脂材からなるホルダケースと、上記外装ケース内で上記ホルダケースを係止する係止手段とを含み、上記表示パネルを上記ホルダケースを介して上記外装ケース内に配置する電気光学表示装置の筐体において、上記係止手段が、上記外装ケースの所定の側板に形成された係止孔と、上記ホルダケースを上記外装ケース内に嵌合する際、上記外装ケースの上記所定の側板を乗り越えて上記係止孔内に入り込む上記ホルダケースの所定の側枠に一体に形成された係止突起との組合せからなり、上記係止突起を有する上記ホルダケースの所定の側枠は、上記係止突起より先に上記外装ケース内に入り込む先端側部分と、上記係止突起より後に上記外装ケース内に入り込む後端側部分とを含み、上記先端側部分は、上記外装ケースの上記所定の側板の内面に当接する当接面を有し、上記後端側部分は、上記外装ケースの上記所定の側板の内面との間で所定幅の隙間を有するように形成されていることを特徴としている。   In order to solve the above-mentioned problems, the present invention has a display window corresponding to the display portion of the display panel on one surface, and is substantially perpendicular to the four sides of the one surface. A frame-shaped exterior case made entirely of a metal plate with the other surface opened by a side plate folded into a side plate, and a recess surrounded by a bottom plate and a side frame formed substantially at right angles to the four sides of the bottom plate A holder case made of a synthetic resin material that is fitted into the exterior case from the opening surface side of the recess, and a locking means for locking the holder case in the exterior case In the housing of the electro-optic display device in which the display panel is disposed in the outer case via the holder case, the locking means is a locking hole formed in a predetermined side plate of the outer case And the holder case From the combination of the locking projection formed integrally with the predetermined side frame of the holder case that gets over the predetermined side plate of the outer case and enters the locking hole. And the predetermined side frame of the holder case having the locking projection includes a front end side portion that enters the exterior case before the locking projection, and a rear end that enters the exterior case after the locking projection. The front end side portion has an abutting surface that abuts against the inner surface of the predetermined side plate of the outer case, and the rear end side portion includes an inner surface of the predetermined side plate of the outer case. It is characterized by having a gap with a predetermined width between the two.

本発明において、請求項２に記載されているように、上記後端側部分は上記外装ケースの上記所定の側板の内面と平行に形成されてもよいし、請求項３に記載されているように、上記後端側部分は上記隙間の幅が上記係止突起から離れる方向に向けて漸次広くなる傾斜面を備えていてもよい。   In the present invention, as described in claim 2, the rear end side portion may be formed in parallel with the inner surface of the predetermined side plate of the exterior case, or as described in claim 3. In addition, the rear end side portion may include an inclined surface in which the width of the gap gradually increases in a direction away from the locking projection.

また、本発明において、上記隙間は０．５〜１．０ｍｍの幅であることが好ましい。すなわち、０．５ｍｍ未満であると通常用いられるマイナスドライバーなどの工具を差し込むことが困難であり、これに対して１．０ｍｍを超える場合には隙間が大きすぎて外観上好ましくない。   In the present invention, the gap preferably has a width of 0.5 to 1.0 mm. That is, if it is less than 0.5 mm, it is difficult to insert a commonly used tool such as a minus screwdriver. On the other hand, if it exceeds 1.0 mm, the gap is too large, which is not preferable in appearance.

本発明によれば、ホルダケースを外装ケース内にはめ込んだ状態では、ホルダケースが係止手段により保持され、かつ、側枠の先端部側の当接面が外装ケースの側板の内面に当接するため、ガタつきなく確実に外装ケース内に固定され、一方、側枠の後端部側と外装ケースの側板との間には所定幅の隙間が設けられているため、ホルダケースを外装ケースから取り外す際には、その隙間にマイナスドライバなどの工具を差し込んで、ケースに損傷を与えることなく、簡単に係止手段を解くことができる。   According to the present invention, in a state in which the holder case is fitted in the exterior case, the holder case is held by the locking means, and the contact surface on the tip end side of the side frame contacts the inner surface of the side plate of the exterior case. Therefore, it is securely fixed in the outer case without rattling, and on the other hand, a gap of a predetermined width is provided between the rear end side of the side frame and the side plate of the outer case, so the holder case is removed from the outer case. When removing, a locking tool can be easily released without damaging the case by inserting a tool such as a flathead screwdriver into the gap.

次に、本発明を図面に示されている実施例に基づいてより詳しく説明する。図１は本発明の要部の一例を概略的に示す拡大断面図，図２は本発明の要部の他の例を概略的に示す拡大断面図である。なお、これらの図においても、液晶表示装置の構成部品に含まれる液晶パネルやバックライトはその図示を省略している。   The invention will now be described in more detail on the basis of the embodiments shown in the drawings. FIG. 1 is an enlarged cross-sectional view schematically showing an example of the main part of the present invention, and FIG. 2 is an enlarged cross-sectional view schematically showing another example of the main part of the present invention. In these figures, the liquid crystal panel and the backlight included in the components of the liquid crystal display device are not shown.

図１に示すように、本発明に係る液晶表示装置の筐体においても、先の図３で説明した従来例と同じく、外装ケース１０とホルダケース２０とを備える。外装ケース１０には、一方の面１１に表示窓１２を有し、その一方の面１１の４辺からほぼ直角に折り曲げられた側板１３により、他方の面が開口部とされた全体が金属板よりなる額縁型のケースが用いられる。   As shown in FIG. 1, the casing of the liquid crystal display device according to the present invention also includes an outer case 10 and a holder case 20 as in the conventional example described with reference to FIG. The exterior case 10 has a display window 12 on one surface 11, and a metal plate that is entirely opened with a side plate 13 bent substantially at right angles from four sides of the one surface 11. A frame type case is used.

ホルダケース２０は合成樹脂製であって、底板２２およびその４辺に立設された側枠２３により囲まれた収納凹部２１を備えている。この収納凹部２１内に、透過型もしくは半透過型の場合には図示しないバックライトと液晶パネルとがこの順序で収納され、反射型の場合には液晶パネルのみが収納される。   The holder case 20 is made of synthetic resin, and includes a storage plate 21 surrounded by a bottom plate 22 and side frames 23 erected on the four sides thereof. In the storage recess 21, a backlight and a liquid crystal panel (not shown) are stored in this order in the case of the transmissive type or transflective type, and only the liquid crystal panel is stored in the case of the reflective type.

ホルダケース２０は、収納凹部２１の開口側から外装ケース１０内に嵌合され、これにより液晶パネルの表示部が外装ケース１０の表示窓１２に配置される。外装ケース１０に対するホルダケース２０の嵌合方向を図１に矢印Ａで示す。   The holder case 20 is fitted into the exterior case 10 from the opening side of the housing recess 21, whereby the display unit of the liquid crystal panel is disposed in the display window 12 of the exterior case 10. The fitting direction of the holder case 20 with respect to the outer case 10 is indicated by an arrow A in FIG.

本発明においても、外装ケース１０にホルダケース２０を固定するための係止手段として、外装ケース１０の側板１３側に形成された係止孔１４と、ホルダケース２０側に形成された係止突起２４とを備える。   Also in the present invention, as a locking means for fixing the holder case 20 to the outer case 10, a locking hole 14 formed on the side plate 13 side of the outer case 10 and a locking protrusion formed on the holder case 20 side. 24.

係止突起２４は、ホルダケース２０を外装ケース１０に向けてはめ込む方向（図１の矢印Ａ方向）に沿って順テーパとなるスロープ面２４１と、スロープ面２４１の終端で直角に立ち下がる係止段部２４２とを備える矢尻状の係止突起であることが好ましいが、半円球状の突起が用いられてもよい。   The locking projection 24 includes a slope surface 241 having a forward taper along the direction (arrow A direction in FIG. 1) that fits the holder case 20 toward the exterior case 10, and a locking surface that falls at a right angle at the end of the slope surface 241. Although it is preferably an arrowhead-shaped locking projection provided with a stepped portion 242, a semispherical projection may be used.

この係止手段によれば、ホルダケース２０を外装ケース１０に向けてはめ込む際、係止突起２４のスロープ面２４１により側板１３が押し開かれ、側板１３がスロープ面２４１を乗り越えた時点で係止段部２４２が係止孔１４の内縁に係合する。   According to this locking means, when the holder case 20 is fitted toward the exterior case 10, the side plate 13 is pushed open by the slope surface 241 of the locking projection 24, and is locked when the side plate 13 gets over the slope surface 241. The step portion 242 engages with the inner edge of the locking hole 14.

ここで、係止突起２４が設けられている側枠２３のうち、係止突起２４より先に外装ケース１０内に入り込む部分を先端側部分２３１とし、係止突起２４より後に外装ケース１０内に入り込む部分を後端側部分２３２とすると、先端側部分２３１は、外装ケース１０の側板１３の内面に当接するように形成される。   Here, in the side frame 23 provided with the locking projection 24, a portion that enters the exterior case 10 before the locking projection 24 is a front end side portion 231, and the portion that enters the exterior case 10 after the locking projection 24. Assuming that the entering portion is the rear end side portion 232, the front end side portion 231 is formed so as to contact the inner surface of the side plate 13 of the exterior case 10.

すなわち、先端側部分２３１は、外装ケース１０の側板１３の内面に当接して外装ケース１０内でホルダケース２０を位置決めする規制面としての当接面２３１ａを備え、これによりホルダケース２０のガタつきが防止される。   That is, the front end portion 231 includes a contact surface 231a as a regulating surface that contacts the inner surface of the side plate 13 of the outer case 10 and positions the holder case 20 in the outer case 10, thereby causing the holder case 20 to rattle. Is prevented.

これに対して、後端側部分２３２と外装ケース１０の側板１３の内面との間には、所定幅の隙間Ｇが設けられる。この隙間Ｇを形成するには、後端側部分２３２の肉厚を先端側部分２３１の肉厚よりも薄くすればよい。   On the other hand, a gap G having a predetermined width is provided between the rear end side portion 232 and the inner surface of the side plate 13 of the exterior case 10. In order to form this gap G, the thickness of the rear end side portion 232 may be made thinner than the thickness of the front end side portion 231.

隙間Ｇは外装ケース１０からホルダケース２０を取り外す際に用いられるもので、この隙間Ｇにマイナスドライバーなどの工具を差し込み側板１３を押し開くことにより、係止孔１４と係止突起２４の係合を解くことができる。   The gap G is used when the holder case 20 is removed from the outer case 10, and a tool such as a flathead screwdriver is inserted into the gap G to open the side plate 13, thereby engaging the locking hole 14 and the locking protrusion 24. Can be solved.

隙間Ｇの幅には、設計上の公差幅は含まれない。隙間Ｇの幅は、通常用いられるマイナスドライバーなどの工具を差し込むことができる幅とされるが、その幅があまり大きすぎると外観上好ましくない。したがって、隙間Ｇの幅は上記工具を差し込むことができ、かつ、外観を損ねない範囲の０．５〜１．０ｍｍであることが好ましい。   The width of the gap G does not include a design tolerance width. The width of the gap G is set to a width in which a normally used tool such as a flat-blade screwdriver can be inserted, but if the width is too large, it is not preferable in appearance. Therefore, the width of the gap G is preferably 0.5 to 1.0 mm in which the tool can be inserted and the appearance is not impaired.

図１の例では、外装ケース１０の側板１３との間で隙間Ｇを形成する側枠２３の壁面２３２ｂを側板１３の内面と平行としているが、図２に示すように、側枠２３の壁面２３２ｂを係止突起２４の係止段部２４２からホルダケース２０の底板２２側に向けて傾斜する傾斜面としてもよい。   In the example of FIG. 1, the wall surface 232 b of the side frame 23 that forms a gap G with the side plate 13 of the exterior case 10 is parallel to the inner surface of the side plate 13, but as shown in FIG. 232b may be an inclined surface that is inclined from the locking step portion 242 of the locking projection 24 toward the bottom plate 22 side of the holder case 20.

これによれば、隙間Ｇの幅が係止突起２４から離れる方向に向けてＶ字状に漸次広くなるため、その隙間Ｇにマイナスドライバーなどの工具を差し込むだけで外装ケース１０の側板１３を押し広げることができ、より容易に外装ケース１０からホルダケース２０を取り外すことができる。なお、図２の例において、側枠２３の壁面２３２ｂを傾斜面とした点以外は図１の例と同じ構成である。   According to this, since the width of the gap G gradually increases in a V shape in a direction away from the locking projection 24, the side plate 13 of the outer case 10 is pushed only by inserting a tool such as a minus screwdriver into the gap G. The holder case 20 can be removed from the outer case 10 more easily. 2 is the same as the example of FIG. 1 except that the wall surface 232b of the side frame 23 is an inclined surface.

以上、図１，図２の例に基づいて本発明を説明したが、本発明はこれに限定されるものてない。例えば、ホルダケース２０内には少なくとも液晶パネルが収納されるが、バックライトのほか制御回路基板が収納されてもよい。また、係止突起２４は矢尻状，半球状のほか角錐状などであってもよい。   Although the present invention has been described based on the examples of FIGS. 1 and 2, the present invention is not limited to this. For example, at least a liquid crystal panel is accommodated in the holder case 20, but a control circuit board may be accommodated in addition to the backlight. Further, the locking protrusion 24 may be an arrowhead shape, a hemispherical shape, or a pyramid shape.

また、電気光学表示装置として液晶表示装置を例示したが、ＥＬ表示装置やプラズマ表示装置などであってもよい。   Further, although the liquid crystal display device is exemplified as the electro-optical display device, an EL display device, a plasma display device, or the like may be used.

本発明の要部の一例を示す拡大断面図。The expanded sectional view which shows an example of the principal part of this invention. 本発明の要部の他の例を示す拡大断面図。The expanded sectional view which shows the other example of the principal part of this invention. 従来例を示す分解斜視図。The exploded perspective view which shows a prior art example. 上記従来例における外装ケースとホルダケースとの係止手段を示す拡大断面図。The expanded sectional view which shows the latching means of the exterior case and holder case in the said prior art example.

符号の説明Explanation of symbols

１０ 外装ケース
１１ 一方の面
１２ 表示窓
１３ 側板
１４ 係止孔
２０ ホルダケース
２１ 収納凹部
２２ 底板
２３ 側枠
２３１ 先端側部分
２３１ａ 当接面
２３２ 後端側部分
２３２ｂ 壁面
２４ 係止突起
２４１ スロープ面
２４２ 係止段部
Ｇ 隙間 DESCRIPTION OF SYMBOLS 10 Exterior case 11 One surface 12 Display window 13 Side plate 14 Locking hole 20 Holder case 21 Storage recessed part 22 Bottom plate 23 Side frame 231 Front end side portion 231a Abutting surface 232 Rear end side portion 232b Wall surface 24 Locking protrusion 241 Slope surface 242 Locking step G Gap

Claims (4)

一方の面に表示パネルの表示部に対応する表示窓を有し、上記一方の面の４辺からほぼ直角に折り曲げられた側板により他方の面が開口部とされた全体が金属板よりなる額縁型の外装ケースと、底板および上記底板の４辺にほぼ直角に形成された側枠により囲まれた凹部内に上記表示パネルが収納され、上記凹部の開口面側から上記外装ケース内に嵌合される全体が合成樹脂材からなるホルダケースと、上記外装ケース内で上記ホルダケースを係止する係止手段とを含み、上記表示パネルを上記ホルダケースを介して上記外装ケース内に配置する電気光学表示装置の筐体において、
上記係止手段が、上記外装ケースの所定の側板に形成された係止孔と、上記ホルダケースを上記外装ケース内に嵌合する際、上記外装ケースの上記所定の側板を乗り越えて上記係止孔内に入り込む上記ホルダケースの所定の側枠に一体に形成された係止突起との組合せからなり、
上記係止突起を有する上記ホルダケースの所定の側枠は、上記係止突起より先に上記外装ケース内に入り込む先端側部分と、上記係止突起より後に上記外装ケース内に入り込む後端側部分とを含み、上記先端側部分は、上記外装ケースの上記所定の側板の内面に当接する当接面を有し、上記後端側部分は、上記外装ケースの上記所定の側板の内面との間で所定幅の隙間を有するように形成されていることを特徴とする電気光学表示装置の筐体。 A picture frame having a display window corresponding to the display portion of the display panel on one side, and a side plate bent substantially at right angles from the four sides of the one side and having the other side opened as a metal plate. The display panel is housed in a recess surrounded by a mold outer case, and a bottom plate and a side frame formed substantially at right angles to the four sides of the bottom plate, and is fitted into the outer case from the opening side of the recess. And a holder case that is entirely made of a synthetic resin material, and a locking means that locks the holder case in the outer case, and the display panel is disposed in the outer case via the holder case. In the housing of the optical display device,
When the locking means fits the locking hole formed in the predetermined side plate of the outer case and the holder case into the outer case, the locking means gets over the predetermined side plate of the outer case and holds the locking It consists of a combination with a locking projection formed integrally with a predetermined side frame of the holder case that enters the hole,
The predetermined side frame of the holder case having the locking projection includes a front end side portion that enters the exterior case before the locking projection, and a rear end side portion that enters the exterior case after the locking projection. The front end side portion has a contact surface that contacts the inner surface of the predetermined side plate of the outer case, and the rear end portion is between the inner surface of the predetermined side plate of the outer case. A housing for an electro-optical display device, wherein the housing is formed to have a gap with a predetermined width. 上記後端側部分は、上記外装ケースの上記所定の側板の内面と平行に形成されている請求項１に記載の電気光学表示装置の筐体。   2. The housing of the electro-optical display device according to claim 1, wherein the rear end portion is formed in parallel with an inner surface of the predetermined side plate of the exterior case. 上記後端側部分は、上記隙間の幅が上記係止突起から離れる方向に向けて漸次広くなる傾斜面を備える請求項１に記載の電気光学表示装置の筐体。   2. The electro-optical display device housing according to claim 1, wherein the rear end portion includes an inclined surface in which a width of the gap gradually increases in a direction away from the locking protrusion. 上記隙間は０．５〜１．０ｍｍの幅である請求項１ないし３のいずれか１項に記載の電気光学表示装置の筐体。
4. The electro-optical display device housing according to claim 1, wherein the gap has a width of 0.5 to 1.0 mm.
JP2006051543A 2006-02-28 2006-02-28 Case of electro-optical display apparatus Pending JP2007232812A (en)

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