JP2009047769A - Display device - Google Patents

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JP2009047769A
JP2009047769A JP2007211640A JP2007211640A JP2009047769A JP 2009047769 A JP2009047769 A JP 2009047769A JP 2007211640 A JP2007211640 A JP 2007211640A JP 2007211640 A JP2007211640 A JP 2007211640A JP 2009047769 A JP2009047769 A JP 2009047769A
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light
circuit board
printed circuit
display device
led
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Masahiro Sugimoto
昌弘 杉本
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device capable of preventing erroneous light emission of a display element due to leak light without using a shading object and consequently without increasing the number of components and arrangement space. <P>SOLUTION: The display device 1 is equipped with a plurality of light sources 2, a plurality of light guides 3 which lead the light beams of the light sources 2 to prescribed positions, and a printed circuit board 4 which is mounted with various components. The printed circuit board 4 is provided with a plurality of holes 11 penetrating the front and rear surfaces of the printed circuit board 4. The emission parts of the light sources 2 and the light incident faces of the light guides 3 are inserted into the one end side and the other end side of the holes 11, and the emission parts of the light sources 2 and the light incident faces of the light guides 3 are oppositely arranged in the holes 11. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、配電盤や制御盤等の各種の電気機器において、電源のＯＮ，ＯＦＦや装置の駆動状態を示す表示部を発光させて明確に表示するための表示装置に関するものである。   TECHNICAL FIELD The present invention relates to a display device for clearly displaying a display unit that indicates ON / OFF of a power source or a driving state of the device in various electric devices such as a switchboard and a control panel.

配電盤や制御盤等の各種の電気機器は、電源のＯＮ，ＯＦＦや装置の駆動状態を示す表示部を発光させて使用者の注意を惹起して操作ミスを低減させ、或は、夜間でも見易いようにした表示装置を備えている。   Various electrical devices such as switchboards and control panels can be turned on and off, and the display that shows the drive status of the equipment emits light to attract the user's attention and reduce operational errors, or it is easy to see even at night A display device as described above is provided.

上記表示装置としては、図７に示すように、キャビネット１０１のフロントパネル１０２に設けた表示部１０３に臨ませて発光ダイオード等の光源（以下、ＬＥＤと称する）１０４を配置して、該ＬＥＤ１０４を発光させたり点滅させたりして、上記表示部１０３に表示するようになっている。ＬＥＤ１０４は、ＬＥＤ支持用のプリント基板１０５に搭載されている。ＬＥＤ支持用のプリント基板１０５は、ケーブル１０６を介して各種の部品等を搭載したプリント基板１０７に接続されている。   As the display device, as shown in FIG. 7, a light source (hereinafter referred to as LED) 104 such as a light emitting diode is disposed facing a display unit 103 provided on the front panel 102 of the cabinet 101, and the LED 104 is Light is emitted or blinked and displayed on the display unit 103. The LED 104 is mounted on a printed circuit board 105 for supporting the LED. The LED supporting printed circuit board 105 is connected to a printed circuit board 107 on which various components and the like are mounted via a cable 106.

上述のように、表示部１０３の近傍にＬＥＤ１０４を配置して、表示部１０３を照射するのが一般的であるが、図８に示すように、表示部１０３とＬＥＤ１０４の間に導光体１０８を介在させて、ＬＥＤ１０４の光を表示部１０３で照射させる方式もある。   As described above, the LED 104 is generally disposed in the vicinity of the display unit 103 to irradiate the display unit 103. However, as illustrated in FIG. 8, the light guide 108 is interposed between the display unit 103 and the LED 104. There is also a system in which the display unit 103 irradiates the light of the LED 104 with the intervening.

ところで、上記導光体１０８を使用した表示装置は、複数のＬＥＤ１０４と導光体１０８が並べて配置されている場合に、一方のＬＥＤ１０４から照射された光の一部が漏れて他の導光体１０８に入り、これを光らせてしまう虞がある。   By the way, in the display device using the light guide 108, when a plurality of LEDs 104 and the light guide 108 are arranged side by side, a part of light emitted from one LED 104 leaks and the other light guide There is a risk of entering 108 and flashing it.

そこで、図９に示すように、複数の導光体１０８の間に遮光体１０９を配置し、該遮光体１０９によって、ＬＥＤ１０４や導光体１０８から漏れた光が他の導光体１０８に入り込むのを防止した表示装置１１０が開発されている。（例えば、特許文献１、特許文献２参照）。
特開平１０−１７０７３４号公報 特開平１１−２４６０８号公報 Therefore, as shown in FIG. 9, a light shield 109 is arranged between the plurality of light guides 108, and light leaked from the LED 104 or the light guide 108 enters another light guide 108 by the light shield 109. A display device 110 that prevents this has been developed. (For example, refer to Patent Document 1 and Patent Document 2).
JP-A-10-170734 Japanese Patent Laid-Open No. 11-24608

ところで、上記遮光体１０９を使用する表示装置１１０には、次に述べるような問題点があった。
（１）遮光体１０９を使用するので、そのぶん部品点数が増えると共に、組立工数も増えてコストアップの原因になる。
（２）導光体１０８相互間に配置した遮光体１０９によってスペースを取られるために、装置を小型化する上での障害になる。 Incidentally, the display device 110 using the light shield 109 has the following problems.
(1) Since the light-shielding body 109 is used, the number of parts is increased and the number of assembling steps is increased, resulting in an increase in cost.
(2) Since a space is taken up by the light shields 109 arranged between the light guides 108, it becomes an obstacle to downsizing the apparatus.

本願発明の目的は、ＬＥＤから照射された光が他の導光体に入るのは、殆どが導光体の端部の入光面からであることに着目し、プリント基板に孔をあけて遮光機能を持たせることにより、従来例の遮光体を使用せずに、従って、部品点数や配置スペースを増大させることなく、漏れ光による表示部の誤発光を防止することのできる表示装置を提供することにある。   The purpose of the present invention is to focus on the fact that the light emitted from the LED enters the other light guide mostly from the light incident surface at the end of the light guide. By providing a light shielding function, a display device capable of preventing erroneous light emission of the display unit due to leaked light without using the conventional light shielding body and without increasing the number of components and the arrangement space is provided. There is to do.

請求項１の発明は、複数の光源と、これら複数の光源の光を各表示部に導く複数の導光体と、各種の部品を搭載したプリント基板と、を備え、上記プリント基板に表裏面を貫通する複数の孔を設け、該孔の一端側と他端側に、上記光源の発光部と、上記導光体の入光面と、を対向させて配置した。   The invention of claim 1 includes a plurality of light sources, a plurality of light guides for guiding the light of the plurality of light sources to the respective display units, and a printed circuit board on which various components are mounted. A plurality of holes penetrating the light source are provided, and the light emitting portion of the light source and the light incident surface of the light guide are arranged to face each other at one end side and the other end side of the hole.

請求項２の発明は、請求項１に記載の表示装置において、上記光源に、ＬＥＤを使用した。   According to a second aspect of the present invention, in the display device according to the first aspect, an LED is used as the light source.

請求項３の発明は、請求項２に記載の表示装置において、上記ＬＥＤに、発光部と、発光部を一方の面に設けたベース部と、該ベース部の上記一方の面に設けられたリード面と、を備えたチップ型のＬＥＤを使用し、上記発光部を上記プリント基板の孔の一端側に挿入し、上記ベース部の一方の面を上記プリント基板の一面に当接させることにより上記プリント基板に取付けられると共に、上記リード面により上記プリント基板に接続した。   According to a third aspect of the present invention, in the display device according to the second aspect, the LED is provided with a light emitting portion, a base portion provided with the light emitting portion on one surface, and the one surface of the base portion. A chip-type LED having a lead surface, and inserting the light-emitting portion into one end side of the hole of the printed circuit board and bringing one surface of the base portion into contact with one surface of the printed circuit board It was attached to the printed circuit board and connected to the printed circuit board through the lead surface.

請求項４の発明は、請求項２に記載の表示装置において、上記ＬＥＤに、発光部と、発光部を一方の面に設けたベース部と、該ベース部の上記一方の面に設けられたリード線と、を備えた砲弾型のＬＥＤを使用し、上記発光部を上記プリント基板の孔の一端側に臨ませ、上記リード線を上記プリント基板に接続することにより上記プリント基板に取付けた。   According to a fourth aspect of the present invention, in the display device according to the second aspect, the LED is provided with a light emitting portion, a base portion provided with the light emitting portion on one surface, and the one surface of the base portion. A bullet-type LED provided with a lead wire was used, the light emitting portion was faced to one end of the hole of the printed board, and the lead wire was attached to the printed board by being connected to the printed board.

請求項５の発明は、請求項２に記載の表示装置において、上記ＬＥＤに、発光部と、発光部を一方の面に設けたベース部と、該ベース部の上記一方の面に設けられたリード線と、を備えた砲弾型のＬＥＤを使用し、複数のＬＥＤをＬＥＤ支持用のプリント基板に取り付けた後に、これらＬＥＤの先端を上記プリント基板の孔の一端側に臨ませた。   According to a fifth aspect of the present invention, in the display device according to the second aspect, the LED is provided with a light emitting portion, a base portion provided with the light emitting portion on one surface, and the one surface of the base portion. A bullet-type LED provided with a lead wire was used, and after attaching a plurality of LEDs to a printed circuit board for supporting LEDs, the tips of these LEDs faced one end side of the hole of the printed circuit board.

請求項６の発明は、請求項２〜５の何れかに記載の表示装置において、上記導光体を、透光性樹脂により棒状に形成し、その長さ方向の一端部を入光面とし、他端部を出光面とし、上記入光面側の端部を上記プリント基板の孔に挿入して、該孔内において、上記発光部と対向させた。   A sixth aspect of the present invention is the display device according to any one of the second to fifth aspects, wherein the light guide is formed in a rod shape with a translucent resin, and one end portion in the length direction thereof is used as a light incident surface. The other end portion was used as the light exit surface, and the end portion on the light incident surface side was inserted into the hole of the printed circuit board, and was opposed to the light emitting portion in the hole.

（１）請求項１の表示装置は、光源の発光部と導光体の入光面とを、プリント基板に設けた孔を介して、該プリント基板の表面側と裏面側に対向させて配置したので、上記プリント基板に設けた孔の周壁が遮光体としての機能を兼ねて、光源の光が上記孔の外部に漏れるのを防止する。従って、遮光体を別途設ける必要がなくなり、コストを低減することができる。また、遮光体が不要となるので、小型化し易くなり、細かい表示が可能となる。
（２）請求項２の表示装置は、光源にＬＥＤを使用したので、低消費電力化、長寿命化、小型化を図ることができる。
（３）請求項３の表示装置は、プリント基板の表裏面のうちの一方の面側からチップ型のＬＥＤの発光部を、上記プリント基板の孔に挿入して、ＬＥＤのベース部をプリント基板の一方の面に当接させることにより、上記リード部のプリント基板への接続と、ＬＥＤのプリント基板への取り付けを行うことができる。
（４）請求項４の表示装置は、プリント基板の一方の面側から孔に臨ませた砲弾型のＬＥＤは、指向性が高いので、ＬＥＤの発光部の一部がプリント基板の一方の面の外部に突出している場合でも、ＬＥＤの発光部から照射される光は、殆ど漏れなく上記孔内に照射される。
（５）請求項５の表示装置は、複数のＬＥＤをＬＥＤ支持用のプリント基板に取り付けてから、該ＬＥＤ支持用のプリント基板に上記孔を設けたプリント基板に対向して配置することにより、上記複数のＬＥＤを上記プリント基板に設けた複数の孔に臨ませて配置することができる。
（６）請求項６の表示装置は、上記導光体の一端部を上記プリント基板の孔に挿入することにより、上記導光体の一端部を上記プリント基板に取り付けると共に、該一端部の端面の入光面を上記孔内のＬＥＤに対向させることができる。 (1) In the display device according to claim 1, the light emitting portion of the light source and the light incident surface of the light guide are arranged to face the front side and the back side of the printed board through holes provided in the printed board. Therefore, the peripheral wall of the hole provided in the printed circuit board also functions as a light shield, and prevents light from the light source from leaking outside the hole. Therefore, it is not necessary to separately provide a light shielding body, and the cost can be reduced. Further, since a light shielding body is not required, it is easy to miniaturize and fine display is possible.
(2) Since the display device according to the second aspect uses an LED as a light source, it is possible to achieve low power consumption, long life, and miniaturization.
(3) In the display device according to claim 3, the light emitting part of the chip type LED is inserted into the hole of the printed board from one side of the front and back surfaces of the printed board, and the base part of the LED is placed on the printed board. By making it contact | abut to one surface of this, the connection to the printed circuit board of the said lead part and the attachment to the printed circuit board of LED can be performed.
(4) In the display device according to claim 4, since the bullet-type LED facing the hole from one surface side of the printed circuit board has high directivity, a part of the light emitting portion of the LED is on one surface of the printed circuit board. Even when projecting outside, the light emitted from the light emitting portion of the LED is irradiated into the hole with almost no leakage.
(5) In the display device according to claim 5, after the plurality of LEDs are attached to the LED supporting printed circuit board, the LED supporting printed circuit board is disposed so as to face the printed circuit board. The plurality of LEDs can be arranged facing a plurality of holes provided in the printed board.
(6) In the display device according to claim 6, by inserting one end of the light guide into the hole of the printed board, the one end of the light guide is attached to the printed board, and the end face of the one end Can be made to face the LED in the hole.

図１は第１実施形態の表示装置の要部の断面図である。表示装置１は、複数の光源２と、これら光源２の光を表示部に導く複数の導光体３と、上記複数の光源２を含む各種の部品を搭載したプリント基板４と、を備えている。表示装置１は、キャビネット５のフロントパネル６に複数の表示部７を備えている。各導光体３は、各光源２の光を各表示部７に導く。   FIG. 1 is a cross-sectional view of a main part of the display device according to the first embodiment. The display device 1 includes a plurality of light sources 2, a plurality of light guides 3 that guide the light of these light sources 2 to a display unit, and a printed circuit board 4 on which various components including the plurality of light sources 2 are mounted. Yes. The display device 1 includes a plurality of display units 7 on the front panel 6 of the cabinet 5. Each light guide 3 guides light from each light source 2 to each display unit 7.

図２に拡大して示すように、プリント基板４は、一方の主面（以下、表面と称する）４ａから他方の主面（以下、裏面と称する）４ｂを貫通する複数の孔１１を備えている。プリント基板４の表面４ａ側と裏面４ｂ側には、上記孔１１を介して、光源２の発光部２ａと、導光体３の入光面３ａとが対向して配置されている。上記光源２には、所謂チップ型のＬＥＤが使用されている。（以下、光源をＬＥＤと称する）。   As shown in FIG. 2 in an enlarged manner, the printed circuit board 4 includes a plurality of holes 11 penetrating from one main surface (hereinafter referred to as the front surface) 4a to the other main surface (hereinafter referred to as the back surface) 4b. Yes. On the front surface 4 a side and the back surface 4 b side of the printed circuit board 4, the light emitting portion 2 a of the light source 2 and the light incident surface 3 a of the light guide 3 are arranged to face each other through the hole 11. A so-called chip-type LED is used for the light source 2. (Hereinafter, the light source is referred to as LED.)

図３に示すように、上記チップ型のＬＥＤ２は、方形状の発光部２ａと、該発光部２ａを一方の面に設けたベース部２ｂと、該ベース部２ｂの上記一方の面に設けられたリード面２ｃと、を備えている。   As shown in FIG. 3, the chip-type LED 2 is provided on a square light emitting part 2a, a base part 2b provided with the light emitting part 2a on one surface, and the one surface of the base part 2b. Lead surface 2c.

上記チップ型のＬＥＤ２は、プリント基板４の表面４ａ側から発光部２ａをプリント基板４の孔１１の一端側に挿入し、ベース部２ｂをプリント基板４の表面４ａに当接させることによりプリント基板４に取付けられると共に、上記リード面２ｃによりプリント基板４に電気的に接続される。   The chip-type LED 2 is formed by inserting the light emitting part 2a into one end side of the hole 11 of the printed circuit board 4 from the surface 4a side of the printed circuit board 4, and bringing the base part 2b into contact with the surface 4a of the printed circuit board 4. 4 and is electrically connected to the printed circuit board 4 by the lead surface 2c.

上記導光体３は、ポリメチルメタクリレート、ポリカーボネート、ポリスチレン等の透光性樹脂により棒状或いはパイプ状に形成されていて、長さ方向の一端面が入光面３ａになっていると共に、他端面が出光面３ｂになっている。   The light guide 3 is formed in a rod shape or a pipe shape from a translucent resin such as polymethyl methacrylate, polycarbonate, polystyrene, etc., and one end surface in the length direction is a light incident surface 3a and the other end surface. Is the light exit surface 3b.

上記導光体３は、入光面３ａ側の端部が、プリント基板４の裏面４ｂ側から上記孔１１に挿入される。そして、上記孔１１内において、導光体３の入光面３ａとＬＥＤ２の発光部２ａとが対向している。また、上記導光体３の出光面３ｂ側の端部は、フロントパネル６に設けた表示部７に挿入されていて、上記出光面３ｂが表示窓７ａを介して外部に臨んでいる。   The light guide 3 has an end on the light incident surface 3 a side inserted into the hole 11 from the back surface 4 b side of the printed circuit board 4. And in the said hole 11, the light-incidence surface 3a of the light guide 3 and the light emission part 2a of LED2 have opposed. The end of the light guide 3 on the light exit surface 3b side is inserted into a display section 7 provided on the front panel 6, and the light exit surface 3b faces the outside through the display window 7a.

第１実施形態の表示装置は、上述のような構成であって、ＬＥＤ２の発光部２ａと導光体３の入光面３ａとを、プリント基板４の孔１１内において対向させて配置したので、該孔１１の周壁が遮光体となって、上記ＬＥＤ２の発光部２ａから照射された光が上記孔１１の外部に漏れて、隣接する導光体３の入光面３ａに入射されるのを確実に防止する。また、上記ベース部２ｂも上記光がプリント基板４の表面４ａ側に漏れるのを防止する。   The display device of the first embodiment is configured as described above, and the light emitting portion 2a of the LED 2 and the light incident surface 3a of the light guide 3 are disposed facing each other in the hole 11 of the printed circuit board 4. The peripheral wall of the hole 11 serves as a light shield, and light emitted from the light emitting portion 2a of the LED 2 leaks to the outside of the hole 11 and enters the light incident surface 3a of the adjacent light guide 3. Is surely prevented. The base portion 2b also prevents the light from leaking to the surface 4a side of the printed circuit board 4.

図４は第２実施形態を示す。この実施形態においては、光源に所謂砲弾型のＬＥＤ２１を使用している。上記砲弾型のＬＥＤ２１は、凸レンズ状の発光部２１ａと、該発光部２１ａを一方の面に設けたベース部２１ｂと、該ベース部２１ｂの他方の面から突出する複数のリード線２１ｃと、を備えている。   FIG. 4 shows a second embodiment. In this embodiment, a so-called bullet-type LED 21 is used as a light source. The bullet-shaped LED 21 includes a convex lens-shaped light emitting portion 21a, a base portion 21b provided with the light emitting portion 21a on one surface, and a plurality of lead wires 21c protruding from the other surface of the base portion 21b. I have.

上記砲弾型のＬＥＤ２１は、発光部２１ａの先端を上記孔１１のプリント基板４の表面４ａ側の端部に臨ませ、上記リード線２１ｃを折り返して、その先端部をプリント基板４に接続することによりプリント基板に取付けられている。   The bullet-type LED 21 has the tip of the light emitting portion 21 a facing the end of the hole 11 on the surface 4 a side of the printed board 4, the lead wire 21 c is folded, and the tip is connected to the printed board 4. Is attached to the printed circuit board.

上記砲弾型のＬＥＤ２１は、指向性が高く、発光を前方に向けて発射させるので、上記発光部２１ａの基端部、即ちベース部２１ｂ側の端部がプリント基板４の表面４ａの外側に突出している場合でも、該発光部２１ａの光が隣接する他の導光体３の入光面３ａに入射されるのは防止される。他の構成は第１実施形態の場合と同じであるので同一構成部分には同一符号を付して重複する説明は省略する。   Since the bullet-shaped LED 21 has high directivity and emits light toward the front, the base end portion of the light emitting portion 21a, that is, the end portion on the base portion 21b side protrudes to the outside of the surface 4a of the printed circuit board 4. Even when the light is incident, the light from the light emitting portion 21a is prevented from entering the light incident surface 3a of another light guide 3 adjacent thereto. Since other configurations are the same as those in the first embodiment, the same components are denoted by the same reference numerals, and redundant description is omitted.

図５は第３実施形態を示す。この実施形態において、複数の砲弾型のＬＥＤ２１は、リード線２１ｃをＬＥＤ支持用のプリント基板２２に接続することにより取り付けられている。そして、上記複数のＬＥＤ２１を取り付けたＬＥＤ支持用のプリント基板２２は、上記複数のＬＥＤ２１の先端を上記孔１１のプリント基板４の表面４ａ側の端部に臨ませた状態で、キャビネット５内に取り付けられている。   FIG. 5 shows a third embodiment. In this embodiment, a plurality of bullet-type LEDs 21 are attached by connecting lead wires 21c to a printed circuit board 22 for supporting LEDs. The LED supporting printed circuit board 22 to which the plurality of LEDs 21 are attached is placed in the cabinet 5 with the tips of the plurality of LEDs 21 facing the end of the hole 11 on the surface 4a side of the printed circuit board 4. It is attached.

第３実施形態は、複数のＬＥＤ２１をＬＥＤ支持用のプリント基板２２に接続することにより取り付けたので、上記第２実施形態の場合のように、リード線２１ｃを折り曲げてプリント基板４に接続するという面倒な作業工程を無くすことができる。他の構成は第１実施形態の場合と同じであるので同一構成部分には同一符号を付して重複する説明は省略する。なお、上記各実施形態においては、プリント基板４に設けた孔１１の一端側と他端側にそれぞれ光源２の発光部２ａと導光体３の入光面３ａとを挿入して、これらを上記孔１１内において対向させた場合を示したが、プリント基板４の肉厚等の関係によって、プリント基板４に設けた孔１１内に光源２の発光部２ａと導光体３の入光面３ａの両方を挿入することが困難な場合には、何れか一方を孔１１内に挿入する構成としてもよい。また、光源２の発光部２ａと導光体３の入光面３ａの両方共に上記孔１１内に挿入しないで、プリント基板４の表，裏面に突き当てた状態で配置してもよい。また、上記各実施形態においては、導光体３をストレートに形成した場合を示したが、図６に示すように、導光体３は、直角等に曲がったものであってもよい。また、上記各実施形態においては、光源にＬＥＤを使用した場合を示したが、有機ＥＬ等を使用しても良い。   In the third embodiment, since the plurality of LEDs 21 are attached by connecting to the printed circuit board 22 for supporting LEDs, the lead wire 21c is bent and connected to the printed circuit board 4 as in the case of the second embodiment. Troublesome work processes can be eliminated. Since other configurations are the same as those in the first embodiment, the same components are denoted by the same reference numerals, and redundant description is omitted. In each of the above embodiments, the light emitting portion 2a of the light source 2 and the light incident surface 3a of the light guide 3 are inserted into one end side and the other end side of the hole 11 provided in the printed circuit board 4, respectively. Although the case where it was made to oppose in the said hole 11 was shown, the light-emitting part 2a of the light source 2 and the light-incidence surface of the light guide 3 in the hole 11 provided in the printed circuit board 4 by the relationship of the thickness etc. When it is difficult to insert both of 3a, it is good also as a structure which inserts any one in the hole 11. FIG. Further, both the light emitting portion 2 a of the light source 2 and the light incident surface 3 a of the light guide 3 may be arranged in a state of being abutted against the front and back surfaces of the printed circuit board 4 without being inserted into the hole 11. Moreover, in each said embodiment, although the case where the light guide 3 was formed in the straight was shown, as shown in FIG. 6, the light guide 3 may be bent at a right angle. Moreover, in each said embodiment, although the case where LED was used for the light source was shown, you may use organic EL etc.

第１実施形態の表示装置の要部の断面図。Sectional drawing of the principal part of the display apparatus of 1st Embodiment. ＬＥＤ、導光体、プリント基板の関係を示す説明図。Explanatory drawing which shows the relationship between LED, a light guide, and a printed circuit board. チップ型ＬＥＤの斜視図。The perspective view of chip-type LED. 第２実施形態のＬＥＤ、導光体、プリント基板の関係を示す説明図。Explanatory drawing which shows the relationship of LED of 2nd Embodiment, a light guide, and a printed circuit board. 第３実施形態のＬＥＤ、導光体、プリント基板の関係を示す説明図。Explanatory drawing which shows the relationship of LED of 3rd Embodiment, a light guide, and a printed circuit board. 導光体の他の例を示す側面図。The side view which shows the other example of a light guide. 従来例の説明図。Explanatory drawing of a prior art example. 他の従来例の説明図。Explanatory drawing of another prior art example. 更に他の従来例の説明図。Furthermore, explanatory drawing of another prior art example.

符号の説明Explanation of symbols

１…表示装置
２…光源（チップ型ＬＥＤ）
２ａ…発光部
２ｂ…ベース部
２ｃ…リード面
３…導光体
３ａ…入光面
３ｂ…出光面
４…プリント基板
４ａ…プリント基板の表面
４ｂ…プリント基板の裏面
５…キャビネット
６…フロントプレート
７…表示部
１１…孔
２１…砲弾型のＬＥＤ
２１ａ…発光部
２１ｂ…ベース部
２１ｃ…リード線
２２…ＬＥＤ支持用のプリント基板 DESCRIPTION OF SYMBOLS 1 ... Display apparatus 2 ... Light source (chip-type LED)
2a ... Light emitting part 2b ... Base part 2c ... Lead surface 3 ... Light guide 3a ... Light incident surface 3b ... Light exiting surface 4 ... Printed circuit board 4a ... Printed circuit board surface 4b ... Printed circuit board back surface 5 ... Cabinet 6 ... Front plate 7 ... Display unit 11 ... Hole 21 ... Bell-shaped LED
21a ... Light emitting part 21b ... Base part 21c ... Lead wire 22 ... Printed circuit board for LED support

Claims (6)

複数の光源と、これら複数の光源の光を表示部に導く複数の導光体と、各種の部品を搭載したプリント基板と、を備え、
上記プリント基板に表裏面を貫通する複数の孔を設け、該孔の一端側と他端側に、上記光源の発光部と、上記導光体の入光面と、を対向させて配置したことを特徴とする表示装置。 A plurality of light sources, a plurality of light guides for guiding the light of the plurality of light sources to the display unit, and a printed circuit board on which various components are mounted,
A plurality of holes penetrating the front and back surfaces are provided in the printed circuit board, and the light emitting portion of the light source and the light incident surface of the light guide are arranged to face each other at one end side and the other end side of the hole. A display device. 上記光源は、ＬＥＤであることを特徴とする請求項１に記載の表示装置。   The display device according to claim 1, wherein the light source is an LED. 上記ＬＥＤは、発光部と、発光部を一方の面に設けたベース部と、該ベース部の上記一方の面に設けられたリード部と、を備えたチップ型のＬＥＤであって、上記発光部を上記プリント基板の孔の一端側に挿入し、上記ベース部の一方の面を上記プリント基板の一面に当接させることにより上記プリント基板に取付けられると共に、上記リード部により上記プリント基板に接続されていることを特徴とする請求項２に記載の表示装置。   The LED is a chip-type LED including a light emitting unit, a base unit provided with the light emitting unit on one surface, and a lead unit provided on the one surface of the base unit, Part is inserted into one end of the hole of the printed circuit board, and one surface of the base part is brought into contact with one surface of the printed circuit board, and is attached to the printed circuit board and connected to the printed circuit board by the lead portion. The display device according to claim 2, wherein the display device is a display device. 上記ＬＥＤは、発光部と、発光部を一方の面に設けたベース部と、該ベース部の上記一方の面に設けられたリード線と、を備えた砲弾型のＬＥＤであって、上記発光部を上記プリント基板の孔の一端側に挿入し、上記リード線を上記プリント基板に接続することにより上記プリント基板に取付けられていることを特徴とする請求項２に記載の表示装置。   The LED is a bullet-type LED including a light emitting portion, a base portion provided with the light emitting portion on one surface, and a lead wire provided on the one surface of the base portion, The display device according to claim 2, wherein the display device is attached to the printed board by inserting a portion into one end of the hole of the printed board and connecting the lead wire to the printed board. 上記ＬＥＤは、発光部と、発光部を一方の面に設けたベース部と、該ベース部の上記一方の面に設けられたリード線と、を備えた砲弾型のＬＥＤであって、上記発光部を上記プリント基板の孔の一端側に臨ませた状態で上記リード線がＬＥＤ支持用のプリント基板に接続されていることを特徴とする請求項２に記載の表示装置。   The LED is a bullet-type LED including a light emitting part, a base part having the light emitting part provided on one surface, and a lead wire provided on the one surface of the base part. The display device according to claim 2, wherein the lead wire is connected to a printed circuit board for LED support with a portion facing one end of the hole of the printed circuit board. 上記導光体は、透光性樹脂により棒状に形成されていて一端側が入光面になり、他端側が出光面になっていて、上記入光面側の端部が上記プリント基板の孔に挿入されていることを特徴とする請求項２〜５の何れかに記載の表示装置。   The light guide is formed in a rod shape with a translucent resin, one end side is a light entrance surface, the other end side is a light exit surface, and the end on the light entrance surface side is a hole in the printed circuit board. The display device according to claim 2, wherein the display device is inserted.
JP2007211640A 2007-08-15 2007-08-15 Display device Pending JP2009047769A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012004014A (en) * 2010-06-18 2012-01-05 Panasonic Electric Works Sunx Tatsuno Co Ltd Electronic equipment
JP2016029404A (en) * 2014-07-25 2016-03-03 朝日電装株式会社 Led light emitting unit and image display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012004014A (en) * 2010-06-18 2012-01-05 Panasonic Electric Works Sunx Tatsuno Co Ltd Electronic equipment
JP2016029404A (en) * 2014-07-25 2016-03-03 朝日電装株式会社 Led light emitting unit and image display device

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