JP4381284B2 - Mobile terminal device - Google Patents

Mobile terminal device Download PDF

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Publication number
JP4381284B2
JP4381284B2 JP2004324685A JP2004324685A JP4381284B2 JP 4381284 B2 JP4381284 B2 JP 4381284B2 JP 2004324685 A JP2004324685 A JP 2004324685A JP 2004324685 A JP2004324685 A JP 2004324685A JP 4381284 B2 JP4381284 B2 JP 4381284B2
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printed circuit
lcd
operation buttons
terminal device
driver
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JP2006135833A (en
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圭一郎 岩佐
真 山岡
隆志 平野
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Sanyo Electric Co Ltd
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Tottori Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Consumer Electronics Co Ltd
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Description

本発明は、携帯電話機等の携帯端末装置に関するものである。   The present invention relates to a mobile terminal device such as a mobile phone.

携帯端末装置、例えば携帯電話機には、液晶表示部と複数の操作ボタンが備えられている。この操作ボタンは一般的にプリント回路基板の表面に形成される導体接点上に配置されている（特許文献１参照）。従って、操作ボタンの配置はプリント回路基板上に限られていた。
特開平１０−１６４１９６号公報 A mobile terminal device such as a mobile phone is provided with a liquid crystal display unit and a plurality of operation buttons. This operation button is generally disposed on a conductor contact formed on the surface of a printed circuit board (see Patent Document 1). Therefore, the arrangement of the operation buttons is limited on the printed circuit board.
JP-A-10-164196

しかしながら、プリント回路基板上にのみ操作ボタンを配置する設計では、構造上プリント回路基板を配置できない部分には操作ボタンを配置できない。また、所望の位置に操作ボタンを配置するためにプリント回路基板を配置すると、他の構成部品と重なってしまい電話機本体が厚くなってしまうこともある。このように、操作ボタンを配置する際にはその下にプリント回路基板が必要となるため、操作ボタンの配置の自由度が少なく、電話機本体の小型化の妨げとなったり、デザインの制限があったりする。   However, in the design in which the operation buttons are arranged only on the printed circuit board, the operation buttons cannot be arranged in a portion where the printed circuit board cannot be arranged due to the structure. In addition, when the printed circuit board is arranged to arrange the operation buttons at a desired position, it may overlap with other components, resulting in a thick phone body. As described above, when the operation buttons are arranged, a printed circuit board is required under the operation buttons. Therefore, the degree of freedom in arrangement of the operation buttons is reduced, which hinders downsizing of the telephone body and has a design limitation. Or

例えば、ＬＣＤ（Liquid Crystal Display）ドライバやＬＣＤガラス（特に表示領域外の部分）の上にプリント回路基板と操作ボタンとを配置すると電話機本体が厚くなってしまう。また、ＬＣＤドライバやＬＣＤガラスは荷重・衝撃に弱いので、それらの上に操作ボタンを配置すると故障の原因にもなる。従って、ＬＣＤドライバやＬＣＤガラスの上に操作ボタンが配置されることはなかった。そのため、電話機本体の小型化を妨げる原因の一つとなっていた。   For example, if a printed circuit board and operation buttons are arranged on an LCD (Liquid Crystal Display) driver or LCD glass (particularly a portion outside the display area), the telephone body becomes thick. In addition, since LCD drivers and LCD glass are vulnerable to load and impact, placing an operation button on them may cause failure. Therefore, no operation button is arranged on the LCD driver or the LCD glass. For this reason, it has been one of the causes that hinders downsizing of the telephone body.

本発明は、操作ボタンの配置の自由度を上げ、且つ装置本体の小型化が可能な携帯端末装置を提供することを目的とする。   It is an object of the present invention to provide a portable terminal device that can increase the degree of freedom of arrangement of operation buttons and can be downsized.

本発明は、筐体が表キャビネットと裏キャビネットを嵌め合わせてなる携帯端末装置であり、前記裏キャビネット上に配置されたプリント回路基盤と液晶表示部との間に前記液晶表示部を駆動するためのドライバＩＣを介在させ、前記ドライバＩＣ上に、当該ドライバＩＣを外部応力から保護する保護部材、フレキシブルプリント回路、当該フレキシブルプリント回路側に１以上の金属接点を有し前記フレキシブルプリント回路上に配置されたシートキー、前記金属接点に対応するように前記シートキー上に配された操作ボタン、を順に積層したことを特徴とする。The present invention is a portable terminal device in which a casing is formed by fitting a front cabinet and a back cabinet, and the liquid crystal display unit is driven between a printed circuit board disposed on the back cabinet and a liquid crystal display unit. A protective member for protecting the driver IC from external stress, a flexible printed circuit, and one or more metal contacts on the flexible printed circuit side are arranged on the driver printed circuit. The sheet key and the operation button arranged on the sheet key so as to correspond to the metal contact are sequentially stacked.

本発明によれば、ＬＣＤやＬＣＤドライバの上に操作ボタンを配置することができるので、設計の自由度が上がるとともに、携帯端末装置の小型化が可能となる。その際、操作ボタンの下にプリント回路基板が不要となるため、ＬＣＤやＬＣＤドライバに重ねてプリント回路基板を配置しなくてよいので、携帯端末装置が厚くなることはない。   According to the present invention, since the operation buttons can be arranged on the LCD or the LCD driver, the degree of freedom in design is increased and the mobile terminal device can be downsized. At this time, since the printed circuit board is not required under the operation button, it is not necessary to arrange the printed circuit board on the LCD or the LCD driver, so that the portable terminal device does not become thick.

以下、本発明の携帯端末装置の一例として携帯電話機を用いて説明する。図１は携帯電話機の正面図、図２は携帯電話機の右側面図、図３は携帯電話機の背面図である。   Hereinafter, a mobile phone will be described as an example of the mobile terminal device of the present invention. 1 is a front view of the mobile phone, FIG. 2 is a right side view of the mobile phone, and FIG. 3 is a rear view of the mobile phone.

図１に示すように、携帯電話機１０の前面には、ＬＣＤ（Liquid Crystal Display）１１や各種操作ボタン１２が配置されている。また図２、図３に示すように、携帯電話機１０の本体は、表キャビネット１３と裏キャビネット１４とからなる。この表キャビネット１３及び裏キャビネット１４の材料としては、硬質樹脂を用いることが好ましく、例えば、ＰＣ（polycarbonate）、ＡＢＳ（Acrylonitrile Butadiene Styrene）の混合材料を好適に用いることができる。   As shown in FIG. 1, an LCD (Liquid Crystal Display) 11 and various operation buttons 12 are arranged on the front surface of the mobile phone 10. As shown in FIGS. 2 and 3, the main body of the mobile phone 10 includes a front cabinet 13 and a back cabinet 14. As the material of the front cabinet 13 and the back cabinet 14, it is preferable to use a hard resin. For example, a mixed material of PC (polycarbonate) and ABS (Acrylonitrile Butadiene Styrene) can be suitably used.

図４は携帯電話機１０の要部の分解斜視図、図５は図１のＡ−Ａ線断面図、図６は図１のＢ−Ｂ線断面図、図７は図６のＣ部の拡大図である。   4 is an exploded perspective view of the main part of the mobile phone 10, FIG. 5 is a sectional view taken along line AA in FIG. 1, FIG. 6 is a sectional view taken along line BB in FIG. FIG.

図４に示すように、裏キャビネット１４内にシャーシ１５が嵌め込まれている。このシャーシ１５は、内蔵部品のほとんどを固定するとともに、携帯電話機１０の剛性を確保するためのものである。また、シャーシ１５にはノイズを低減する役割もある。これらの機能をもたせるため、シャーシ１５の材料としては、高剛性の導電体を用いることができ、例えば、マグネシウムを用いることが好ましい。   As shown in FIG. 4, a chassis 15 is fitted in the back cabinet 14. The chassis 15 is for fixing most of the built-in components and securing the rigidity of the mobile phone 10. The chassis 15 also has a role of reducing noise. In order to have these functions, a highly rigid conductor can be used as the material of the chassis 15, and for example, magnesium is preferably used.

そしてシャーシ１５には、ＬＣＤ１１、ＬＣＤ１１を駆動するＬＣＤドライバ１６、ＬＣＤドライバ１６を外部応力から保護する保護部材１７、操作ボタン１２をはじめ各部の回路が形成されたプリント回路基板２０、２１などが固定されている。   Fixed to the chassis 15 are the LCD 11, the LCD driver 16 that drives the LCD 11, the protective member 17 that protects the LCD driver 16 from external stress, the printed circuit boards 20 and 21 on which the circuits of each part including the operation buttons 12 are formed. Has been.

保護部材１７上にはフレキシブルプリント回路（ＦＰＣ：Flexible Printed Circuit）１８が載置され、ＦＰＣ１８上にはシートキー１９が載置され、シートキー１９上には、操作ボタン１２ａ〜１２ｃが載置される。   A flexible printed circuit (FPC) 18 is placed on the protection member 17, a sheet key 19 is placed on the FPC 18, and operation buttons 12 a to 12 c are placed on the sheet key 19. The

保護部材１７は、Ｔ字型の薄板の３端を同一面側に直角に折り曲げ、折り曲げられた対向する２つの端部に孔１７ａ、１７ｂを形成したものである。そして、孔１７ａ、１７ｂがシャーシ１５に形成された凸部１５ａ、１５ｂに係合して、保護部材１７がシャーシ１５に固定される。保護部材１７にはＬＣＤドライバ１６を保護する役割の他に、ＦＰＣ１８やシートキー１９を固定する役割もある。   The protective member 17 is formed by bending three ends of a T-shaped thin plate at a right angle to the same surface side, and forming holes 17a and 17b at two bent opposite ends. The holes 17 a and 17 b engage with the convex portions 15 a and 15 b formed in the chassis 15, and the protective member 17 is fixed to the chassis 15. In addition to protecting the LCD driver 16, the protective member 17 also has a role of fixing the FPC 18 and the sheet key 19.

更に、図７に示すように、保護部材１７は裏キャビネット１４に形成された支持部１４ａでも支持される。なお、保護部材１７の支持部１４ａに支持される折り曲げられた部分及び支持部１４ａは省略しても構わない。また、保護部材１７には、その上に配される操作ボタン１２ａから１２ｃの操作時の荷重からＬＣＤドライバ１６を保護するため、薄くても剛性の高い材料を用いる必要がある。例えば、マグネシウムやステンレスのプレートを用いることができる。特に、ＳＵＳ６３１−ＣＳＰ−３／４Ｈを用いることが好ましい。   Further, as shown in FIG. 7, the protection member 17 is also supported by a support portion 14 a formed in the back cabinet 14. Note that the bent portion supported by the support portion 14a of the protection member 17 and the support portion 14a may be omitted. Moreover, in order to protect the LCD driver 16 from the load at the time of operation of the operation buttons 12a to 12c arranged on the protection member 17, it is necessary to use a thin but highly rigid material. For example, a magnesium or stainless steel plate can be used. In particular, it is preferable to use SUS631-CSP-3 / 4H.

このように、保護部材１７によりＬＣＤドライバ１６が空間を有して覆われているので、操作ボタン１２ａ〜１２ｃが押下されてもＬＣＤドライバに荷重がかかることはない。なお、保護部材１７は薄くて高剛性であればその形状には特に限定はなく、その固定先もＬＣＤ１１やＬＣＤドライバ１６以外であれば特に限定はない。   In this way, since the LCD driver 16 is covered with a space by the protective member 17, no load is applied to the LCD driver even when the operation buttons 12a to 12c are pressed. The shape of the protective member 17 is not particularly limited as long as it is thin and highly rigid, and there is no particular limitation as long as the fixing destination is not the LCD 11 or the LCD driver 16.

ＦＰＣ１８は、保護部材１７と同程度の大きさであり、接続部１８ａでプリント回路基板２０に接続されている。また、ＦＰＣ１８は操作ボタン１２ａ〜１２ｃの押下によるＯＮ／ＯＦＦ回路からなり、プリント回路基板２０へ信号を伝達する。   The FPC 18 is approximately the same size as the protective member 17 and is connected to the printed circuit board 20 by a connecting portion 18a. The FPC 18 is composed of an ON / OFF circuit by pressing the operation buttons 12a to 12c, and transmits a signal to the printed circuit board 20.

シートキー１９は、そのＦＰＣ１８側に金属接点１９ａ〜１９ｃを有し、金属接点１９ａ〜１９ｃ以外のシート部分は絶縁材で構成される。そして、操作ボタン１２ａ〜１２ｃが押下されると、その下の金属接点１９ａ〜１９ｃがＦＰＣ１８に接触し、ＦＰＣ内の接点部が短絡することにより、操作ボタン１２ａ〜１２ｃの押下が検出される。   The sheet key 19 has metal contacts 19a to 19c on the FPC 18 side, and sheet portions other than the metal contacts 19a to 19c are made of an insulating material. When the operation buttons 12a to 12c are pressed, the lower metal contacts 19a to 19c come into contact with the FPC 18, and the contact portion in the FPC is short-circuited to detect the pressing of the operation buttons 12a to 12c.

操作ボタン１２ａ〜１２ｃは、１枚のシリコンラバー１２ｄ上にポリカーボネート等を凸部として形成したものであり、ＦＰＣ１８の金属接点１９ａ〜１９ｃに対応して配されている。なお、シリコンラバー１２ｄを省略して操作ボタン１２ａ〜１２ｃを別々の部品としてもよい。   The operation buttons 12a to 12c are formed by forming polycarbonate or the like as a convex portion on one silicon rubber 12d, and are arranged corresponding to the metal contacts 19a to 19c of the FPC 18. Note that the silicon rubber 12d may be omitted and the operation buttons 12a to 12c may be separate parts.

上記の携帯電話機１０において、例えば、ＬＣＤドライバ１６の厚みは０．４３ｍｍ又は０．４５ｍｍ、保護部材１７の厚みは０．４ｍｍ、ＦＰＣ１８の厚みは０．２ｍｍ、シートキーの厚みは０．１ｍｍのものを用いることができる。このような薄い部品を用いることで、キャビネットの厚みを増すことなく、ＬＣＤドライバ１６と表キャビネット１３との隙間に保護部材１７、ＦＰＣ１８、シートキー１９、及び操作ボタン１２ａ〜１２ｃを載置することができる。   In the mobile phone 10 described above, for example, the LCD driver 16 has a thickness of 0.43 mm or 0.45 mm, the protective member 17 has a thickness of 0.4 mm, the FPC 18 has a thickness of 0.2 mm, and the sheet key has a thickness of 0.1 mm. Things can be used. By using such thin parts, the protective member 17, the FPC 18, the sheet key 19, and the operation buttons 12a to 12c are placed in the gap between the LCD driver 16 and the front cabinet 13 without increasing the thickness of the cabinet. Can do.

なお、保護部材１７はＬＣＤ１１上に設けてもよい。特に、ＬＣＤ１１の非表示領域上であれば表示の妨げにもならない。これによりＬＣＤ１１上にも上記と同様の構成で操作ボタンを配置することが可能となる。   The protective member 17 may be provided on the LCD 11. In particular, if it is on the non-display area of the LCD 11, the display is not hindered. As a result, operation buttons can be arranged on the LCD 11 with the same configuration as described above.

以上のように、保護部材１７、ＦＰＣ１８、及びシートキー１９を用いることにより、荷重・衝撃に弱いＬＣＤドライバ１６やＬＣＤ１１の上にでも操作ボタン１２を配置することが可能となる。これにより、操作ボタン１２の下にプリント回路基板が不要となるため、ＬＣＤドライバ１６やＬＣＤ１１に重ねてプリント回路基板を配置しなくてよいので、携帯電話機１０が厚くなることはない。また、従来配置できなかったＬＣＤドライバ１６やＬＣＤ１１の上に操作ボタンを配置することができるので、設計の自由度が上がるとともに、携帯電話機１０の小型化が可能となる。   As described above, by using the protection member 17, the FPC 18, and the sheet key 19, the operation button 12 can be disposed even on the LCD driver 16 or the LCD 11 that is weak against load and impact. This eliminates the need for a printed circuit board under the operation button 12 and thus eliminates the need to place the printed circuit board on the LCD driver 16 or the LCD 11, so that the cellular phone 10 does not become thick. Further, since the operation buttons can be arranged on the LCD driver 16 and the LCD 11 which could not be arranged conventionally, the degree of freedom in design is increased and the mobile phone 10 can be downsized.

本発明の携帯端末装置は、ストレート型や折り畳み型の携帯電話機をはじめ、ＰＤＡ、携帯ゲーム機等、ＬＣＤを備える装置に広く利用することができる。   The mobile terminal device of the present invention can be widely used for devices including LCDs, such as straight-type and folding-type mobile phones, PDAs, and portable game machines.

本発明の携帯電話機の正面図である。It is a front view of the mobile phone of the present invention. 本発明の携帯電話機の右側面図である。It is a right view of the mobile phone of the present invention. 本発明の携帯電話機の背面図である。It is a rear view of the mobile phone of the present invention. 本発明の携帯電話機の要部の分解斜視図である。It is a disassembled perspective view of the principal part of the mobile telephone of this invention. 図１のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 図１のＢ−Ｂ線断面図である。It is the BB sectional view taken on the line of FIG. 図６のＣ部の拡大図である。It is an enlarged view of the C section of FIG.

符号の説明Explanation of symbols

１０ 携帯電話機（携帯端末装置）
１１ ＬＣＤ
１２、１２ａ〜１２ｃ 操作ボタン
１５ シャーシ
１６ ＬＣＤドライバ
１７ 保護部材
１８ ＦＰＣ
１９ シートキー 10 Mobile phone (mobile terminal device)
11 LCD
12, 12a to 12c Operation buttons 15 Chassis 16 LCD driver 17 Protection member 18 FPC
19 Sheet key

Claims (1)

筐体が表キャビネットと裏キャビネットを嵌め合わせてなる携帯端末装置であり、前記裏キャビネット上に配置されたプリント回路基盤と液晶表示部との間に前記液晶表示部を駆動するためのドライバＩＣを介在させ、
前記ドライバＩＣ上に、当該ドライバＩＣを外部応力から保護する保護部材、フレキシブルプリント回路、当該フレキシブルプリント回路側に１以上の金属接点を有し前記フレキシブルプリント回路上に配置されたシートキー、前記金属接点に対応するように前記シートキー上に配された操作ボタン、を順に積層したことを特徴とする携帯端末装置。 A portable terminal device having a case in which a front cabinet and a back cabinet are fitted together, and a driver IC for driving the liquid crystal display unit between a printed circuit board and a liquid crystal display unit arranged on the back cabinet. Intervene,
On the driver IC, the protection member, a flexible printed circuit, those the flexible printed circuit side to one or more sheet key that is disposed on the flexible printed circuit has a metal contact to protect the driver IC from the external stress, the A portable terminal device in which operation buttons arranged on the sheet key are sequentially stacked so as to correspond to metal contacts.
JP2004324685A 2004-11-09 2004-11-09 Mobile terminal device Active JP4381284B2 (en)

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JP2004324685A JP4381284B2 (en) 2004-11-09 2004-11-09 Mobile terminal device

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JP2006135833A JP2006135833A (en) 2006-05-25
JP4381284B2 true JP4381284B2 (en) 2009-12-09

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KR101467867B1 (en) * 2012-11-30 2014-12-03 주식회사 팬택 Mobile Communication Device

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