JP2008230402A - Indicator for vehicle - Google Patents

Indicator for vehicle Download PDF

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JP2008230402A
JP2008230402A JP2007072857A JP2007072857A JP2008230402A JP 2008230402 A JP2008230402 A JP 2008230402A JP 2007072857 A JP2007072857 A JP 2007072857A JP 2007072857 A JP2007072857 A JP 2007072857A JP 2008230402 A JP2008230402 A JP 2008230402A
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light
vehicle
circuit wiring
fuel consumption
light emitting
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Keiyo Okada
啓誉 岡田
Naoki Tsukamoto
尚樹 塚本
Katsuhiro Suhara
克洋 須原
Tadamoto Takezawa
匡基 竹澤
Hiroyuki Yamada
寛之 山田
Yasuhiro Sakakibara
泰博 榊原
Takahiko Sato
貴彦 佐藤
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Toyoda Gosei Co Ltd
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Toyoda Gosei Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an indicator for a vehicle having a rotary pointer that sensuously grasps the consumption of fuel by changing the tone of luminescence. <P>SOLUTION: The indicator (speedometer) 100 for a vehicle that is also a fuel consumption display device comprises an outer frame part 10, a scale part 11, a speed value 12, and a long and rotating pointer 150. Of the above, the scale part 11 and the speed value 12 may be formed, for example, by white printing. Further, a light transmitting part may be formed, for example, with a light transmitting material and a light shielding part, and a display may be formed by transmitted light from a white or orange illumination part provided on a back surface of each of the scale part 11 and the speed numerical value 12. If a circuit wiring substrate having green and red light emitting diodes assembled therein is provided in the rotating pointer 150, and a light diffusing material is dispersed on at least one of a sealing resin and the circuit wiring substrate, the display may be illuminated in green, red, and intermediate colors thereof (for example, yellow). The speedometer (indicator for vehicle) that is also the fuel consumption display device capable of sensuously informing a driver of fuel consumption by tone of color can be constructed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、車両の燃費を表示する装置に関する。本発明は、独立した燃費表示装置ではなく、車両の走行状態等を表示するための車両用表示計であって、燃費表示装置を兼ねるものに関する。   The present invention relates to an apparatus for displaying the fuel consumption of a vehicle. The present invention relates to a vehicle display meter for displaying a running state of a vehicle, not an independent fuel consumption display device, and also serving as a fuel consumption display device.

例えば自動車においては、ガソリン価格の高騰に伴い、燃料の単位体積当たりの走行可能距離を示す燃費に関心が高まっている。また、ハイブリッド車の普及に伴い、走行距離と燃料の使用量との比率が表示されるものが望まれ、いくつかの燃費表示装置が取り付けられている。例えば特許文献１には、燃費を数値により表示する車両の燃費表示装置の開示がある。   For example, in automobiles, with an increase in gasoline prices, there is an increasing interest in fuel consumption that indicates the mileage per unit volume of fuel. In addition, with the spread of hybrid vehicles, it is desired to display the ratio between the distance traveled and the amount of fuel used, and several fuel consumption display devices are attached. For example, Patent Document 1 discloses a vehicle fuel consumption display device that displays fuel consumption numerically.

数値表示の他、いわゆる棒グラフ状の燃費表示装置もある。これは最も燃費の悪い状態において輝度を有する領域が例えば１個となる表示とし、最も燃費の良い状態において輝度を有する領域が例えば１０個となる表示として、それらの間の状態においては、燃費に応じて輝度を有する領域の個数を変化させるものである。
特開２００４−４５１８０号公報 In addition to numerical display, there is also a so-called bar graph fuel consumption display device. This is a display in which, for example, one region having the luminance in the state with the lowest fuel consumption is one, and a display having, for example, ten regions having the luminance in the state in which the fuel efficiency is the best. Accordingly, the number of areas having luminance is changed.
JP 2004-45180 A

特許文献１にもある通り、運転者が見やすいように、車速計その他の表示装置はインストルメンタルパネル（インパネ）に集中して配置されている。車速計その他の表示装置が例えば白色光又は橙色光を用いて、目盛や目盛に対応した数値を表示する場合、例えば燃費を棒グラフ状に表示する際も、それらと同色の例えば白色光又は橙色光で表示されることが多かった。また、燃費を数値で表示する場合は、液晶表示が多用され、必ずしも視認性が高くなかった。   As also disclosed in Patent Document 1, the vehicle speedometer and other display devices are concentrated on the instrument panel (instrument panel) so that the driver can easily see. When a speedometer or other display device uses white light or orange light to display numerical values corresponding to a scale or scale, for example, when displaying fuel consumption in a bar graph shape, for example, white light or orange light of the same color as those It was often displayed with. Further, when the fuel consumption is displayed as a numerical value, a liquid crystal display is frequently used and the visibility is not necessarily high.

ところで、車速と異なり、燃費は一定の数値を保つ必要があると言ったものではなく、単に良いか、悪いか、良くなったか、悪くなったかといった、感覚的なもので十分である。この点で、燃費を表示する場合に数値で正確に運転者に伝える必要はなく、棒グラフ程度で十分のはずである。しかし、車両の運行中に、絶えず変化する燃費の表示を注視するような余裕は運転者には無い。   By the way, unlike the vehicle speed, the fuel consumption is not to say that it is necessary to maintain a constant value, but a sensible thing such as whether it is good, bad, better or worse is sufficient. In this regard, when displaying fuel consumption, it is not necessary to accurately tell the driver numerically, and a bar graph should be sufficient. However, the driver cannot afford to keep an eye on the constantly changing fuel consumption display during vehicle operation.

そこで、本発明者らは、運転者の視野に入る頻度の高い速度計その他の回転指針を有する車両用表示計の、当該回転する指針から光を発する構造とした上、その発する光の色調を変化させることで燃費を感覚的に把握できることを着想し、本願発明を完成させた。   Accordingly, the inventors of the present invention have a structure in which light is emitted from the rotating pointer of a vehicle display meter having a speedometer or other rotating pointer that frequently enters the driver's field of view, and the color tone of the emitted light is changed. The invention of the present application was completed with the idea that the fuel consumption can be grasped sensuously by changing.

請求項１に係る発明は、回転する指針により、車速、エンジン回転数、水温、燃料残量その他の車両の走行状態等を表示するための車両用表示計において、少なくとも異なる２色の発光素子を前記回転する指針に設け、回転する指針から発する光の色調を可変として、回転する指針から発する光の色調により車両の燃費表示を行うことを特徴とする燃費表示装置を兼ねた車両用表示計である。   According to a first aspect of the present invention, there is provided a vehicular indicator for displaying vehicle speed, engine speed, water temperature, fuel remaining amount and other vehicle running conditions, etc., by means of a rotating pointer. A vehicle indicator that also serves as a fuel consumption display device provided on the rotating pointer, wherein the color tone of light emitted from the rotating pointer is variable, and the fuel consumption display of the vehicle is displayed by the color tone of light emitted from the rotating pointer. is there.

請求項２に係る発明は、回転する指針は、回路配線基板と、回路配線基板の一方の面に配置され、回路配線に接続された、少なくとも異なる２色の発光素子と、発光素子を封止する封止樹脂とを有し、回路配線基板及び封止樹脂の少なくとも一方に光拡散材料が分散されていることを特徴とする。   In the invention according to claim 2, the rotating pointer is sealed on the circuit wiring board, the light emitting elements of at least two different colors arranged on one surface of the circuit wiring board and connected to the circuit wiring, and the light emitting elements And a light diffusion material is dispersed in at least one of the circuit wiring board and the sealing resin.

回転する指針の発する光の色調を、少なくとも２色、更にはそれらの光の混色による中間色に変化させることができる。これを車両の燃費表示とすれば、色調及びその変化により、燃費が良いのか悪いのか、段々良くなっているのか、悪くなっているのかといった燃費の現状及びその変化を、感覚的に把握することが可能となる。車両運行中の運転者は、周囲の状況に加えてスピードを確認することで手一杯の場合が多く、燃費を数値で把握したり燃費の変化を数値の変化で把握することは実は困難である。一方本願発明によれば、数値により把握するのでなく、回転する指針の発する光の色調及びその変化により燃費の現状と変化を感覚的に把握することができ、車両の運行に支障を来さない。   The color tone of the light emitted by the rotating pointer can be changed to at least two colors, and further to an intermediate color by mixing these lights. If this is the vehicle fuel consumption display, the current state of fuel consumption and its change, such as whether the fuel consumption is good or bad, gradually improving or worsening, can be grasped sensuously by the color tone and its change. Is possible. In many cases, the driver who is operating the vehicle is full of hands by checking the speed in addition to the surrounding conditions, and it is actually difficult to grasp the fuel consumption numerically and to grasp the fuel consumption change by numerical change . On the other hand, according to the present invention, instead of grasping numerically, it is possible to sensuously grasp the current state and change of fuel consumption by the color tone of light emitted by the rotating pointer and the change thereof, and does not hinder the operation of the vehicle. .

回転する指針から少なくとも２色を切替て光を発せしめる、更にはそれらの光の混色による中間色を発せしめるためには、回転する指針が発光素子を組み込んだ回路配線基板を有していることが必要である。当該発光素子を樹脂封止した上、回路配線基板及び封止樹脂の少なくとも一方を光拡散材料が分散されたものとしておくと、点光源である発光素子からの光が光拡散材料で拡散され、当該回路配線基板又は封止樹脂の全体が発光しているように視認される。このように、回転する指針の疑似発光領域を、光拡散材料が分散された回路配線基板又は光拡散材料が分散された封止樹脂で構成し、それを直接又は透明な被覆材を介して視認できるようにすることで、本願発明が構成可能となる。   In order to emit light by switching at least two colors from a rotating pointer, and further to emit an intermediate color by mixing these lights, the rotating pointer has a circuit wiring board in which a light emitting element is incorporated. is necessary. When the light emitting element is resin-sealed, and at least one of the circuit wiring board and the sealing resin is made to have a light diffusing material dispersed therein, light from the light emitting element that is a point light source is diffused by the light diffusing material, It is visually recognized that the entire circuit wiring board or sealing resin emits light. In this way, the pseudo light emitting region of the rotating pointer is configured by a circuit wiring board in which the light diffusion material is dispersed or a sealing resin in which the light diffusion material is dispersed, and the visual indication is made directly or through a transparent coating material. By making it possible, the present invention can be configured.

本発明を適用する回転する指針を有する車両用表示計は、速度計、タコメータ、燃料計、水温計その他の任意の回転する指針を有する車両用表示計に適用して良い。特に、運転者が頻繁に確認する速度計に適用し、速度計の回転指針に発光素子を組み込むと良い。   The vehicle indicator having a rotating pointer to which the present invention is applied may be applied to a vehicle indicator having a speedometer, a tachometer, a fuel gauge, a water temperature gauge, or any other rotating pointer. In particular, it may be applied to a speedometer that is frequently checked by the driver, and a light emitting element may be incorporated in the rotation indicator of the speedometer.

本発明に用いる個々の発光ダイオードは、単色、フルカラー、その他任意である。また、１つの発光領域に用いる発光ダイオードの個数も任意である。発光ダイオードとしては、必要な色調を発光するものを任意に選択できる。例えば紫色乃至緑色の発光ダイオードとしてはIII族窒化物系化合物半導体（ＡｌxＧａyＩｎ1-x-yＮ）を選択すると良い。赤乃至黄緑色の発光ダイオードとしてはＧａＡｓ系、ＩｎＰ系を選択すると良い。 The individual light-emitting diodes used in the present invention are monochromatic, full-color, or other arbitrary. The number of light emitting diodes used in one light emitting region is also arbitrary. As the light emitting diode, a light emitting diode which emits light having a necessary color tone can be arbitrarily selected. For example, a group III nitride compound semiconductor (Al x Ga y In 1-xy N) may be selected as a purple to green light emitting diode. As the red to yellow-green light emitting diode, it is preferable to select a GaAs type or an InP type.

発光ダイオードの電極構造も任意であり、回路配線基板の回路配線との接続方法も任意に選択できる。例えばIII族窒化物系化合物半導体（ＡｌxＧａyＩｎ1-x-yＮ）発光素子を用いる場合、いわゆるフェイスアップタイプの構造（ｐ型半導体層側に光取り出し）でチップ基板裏面に反射膜を形成しても良い。この場合、回路配線基板との接続ははんだバンプとして良い。或いはいわゆるフリップチップタイプの構造（絶縁基板側に光取り出し）でｐ型半導体層側に反射膜を有するものを、ワイヤボンディングしても良い。ワイヤボンディングの際、超音波を用いるウエッジボンディングによれば加熱処理が不要であり、他の構成部分に悪影響が少なくなる。これらの詳細については後述する。 The electrode structure of the light emitting diode is also arbitrary, and the connection method with the circuit wiring of the circuit wiring board can be arbitrarily selected. For example, when using a group III nitride compound semiconductor (Al x Ga y In 1-xy N) light emitting element, a reflective film is formed on the back surface of the chip substrate with a so-called face-up type structure (light extraction on the p-type semiconductor layer side). You may do it. In this case, the connection to the circuit wiring board may be a solder bump. Alternatively, a so-called flip chip type structure (light extraction on the insulating substrate side) having a reflective film on the p-type semiconductor layer side may be wire-bonded. When wire bonding is performed, wedge bonding using ultrasonic waves eliminates the need for heat treatment and reduces adverse effects on other components. Details of these will be described later.

〔回路配線基板を介して光を取り出す場合〕
回路配線基板を介して光を取り出す場合には次の点を考慮する。回路配線基板の材料は、遮光性の母材が不適当であるほかは全く任意である。母材は透光性を有する樹脂又は無機材料が好ましい。取り出し領域に対応する部分の配線材を酸化インジウムスズ（ＩＴＯ）とすると、表示の際に配線の陰が生じない。光拡散材料としては球形その他の微粒子が入手可能であり、回路配線基板の母材に分散するほか、当該光拡散材料を塗布固定した薄膜を用いても良い。 [When extracting light through the circuit wiring board]
The following points are considered when extracting light through the circuit wiring board. The material of the circuit wiring board is completely arbitrary except that a light-shielding base material is inappropriate. The base material is preferably a light-transmitting resin or inorganic material. When the wiring material corresponding to the extraction region is made of indium tin oxide (ITO), the shadow of the wiring does not occur during display. As the light diffusing material, spherical or other fine particles are available, and in addition to being dispersed in the base material of the circuit wiring board, a thin film coated and fixed with the light diffusing material may be used.

回路配線基板を介して光を取り出す場合に、発光ダイオードを覆う様に形成する反射膜を形成しても良い。この際、任意の金属その他を用いることが可能であるが、回路配線基板の回路配線との絶縁を保つため、絶縁材を介する等の工夫が必要である。   When extracting light through the circuit wiring board, a reflective film may be formed so as to cover the light emitting diode. At this time, any metal or the like can be used. However, in order to maintain insulation from the circuit wiring of the circuit wiring board, a device such as an insulating material is required.

〔封止樹脂側に光を取り出す場合〕
一方、封止樹脂側に光を取り出す場合には、回路配線基板の母材は遮光性の材料であっても良く、着色したものも所望に用いることができる。また、回路配線の材料を反射性の高い例えばアルミニウムや銅として、発光素子の光を光取り出し側に反射することもできる。この際、回路配線材料は、絶縁性を保ちつつ、発光領域に対応する回路配線基板のできるだけ多くの領域を覆うようにすると良い。封止樹脂側に光を取り出す場合には、例えば封止樹脂を囲うように、他の樹脂その他で枠部を設けると良い。この枠部に囲まれた内部領域が発光領域となる。封止樹脂に分散させる光拡散材料としては球形その他の微粒子が入手可能である。封止樹脂表面は露出させても、他の透光性の板材で覆っても良い。 [When extracting light to the sealing resin side]
On the other hand, when extracting light to the sealing resin side, the base material of the circuit wiring board may be a light-shielding material, and a colored one can be used as desired. Further, the light of the light emitting element can be reflected to the light extraction side by using a highly reflective material such as aluminum or copper for the circuit wiring. At this time, it is preferable that the circuit wiring material covers as much area as possible of the circuit wiring board corresponding to the light emitting area while maintaining insulation. In the case of extracting light to the sealing resin side, for example, a frame portion may be provided with another resin or the like so as to surround the sealing resin. An inner area surrounded by the frame portion becomes a light emitting area. As the light diffusing material dispersed in the sealing resin, spherical and other fine particles are available. The surface of the sealing resin may be exposed or covered with another translucent plate material.

図１は本発明の具体的な一実施例に係る、燃費表示装置を兼ねた車両用表示計１００の平面図である。本実施例において、燃費表示装置を兼ねた車両用表示計１００としては、速度計を示した。燃費表示装置を兼ねた車両用表示計（速度計）１００は、外枠部１０、目盛部１１、速度数値１２及び長尺の回転する指針１５０とから成る。このうち、外枠部１０、目盛部１１及び速度数値１２については、例えば白色印刷により形成しても良く、例えば透光性の材料と遮光部により透光部を形成して、各々白色又は橙色の照明部を裏面に設けて、当該照明部からの透過光により表示を形成しても良い。   FIG. 1 is a plan view of a vehicular display meter 100 that also serves as a fuel consumption display device according to a specific embodiment of the present invention. In the present embodiment, a speedometer is shown as the vehicle display meter 100 that also serves as a fuel consumption display device. A vehicle indicator (speedometer) 100 that also serves as a fuel efficiency display device includes an outer frame portion 10, a scale portion 11, a speed value 12, and a long rotating pointer 150. Among these, the outer frame part 10, the scale part 11 and the speed value 12 may be formed by, for example, white printing, for example, by forming a light-transmitting part with a light-transmitting material and a light-shielding part, respectively white or orange. The illumination part may be provided on the back surface, and the display may be formed by transmitted light from the illumination part.

燃費表示装置を兼ねた車両用表示計（速度計）１００の長尺の回転する指針１５０の長尺部は、図２の断面図を有する、以下に述べるような構成とする。   The long portion of the long rotating pointer 150 of the vehicle indicator (speedometer) 100 that also serves as a fuel consumption display device has the cross-sectional view of FIG. 2 as described below.

図２は、図１の燃費表示装置を兼ねた車両用表示計（速度計）１００の長尺の回転する指針１５０の長尺部の断面図である。図２において、紙面に垂直方向を図１の長尺の回転する指針１５０の長手方向とすると良い。図２には、以下のように１個の発光ダイオードのみを図示しているが、図１の長尺の回転する指針１５０は、その長手方向に任意個数の発光ダイオードを組み込む設計として良い。   FIG. 2 is a cross-sectional view of the long portion of the long rotating pointer 150 of the vehicle display meter (speedometer) 100 that also serves as the fuel consumption display device of FIG. In FIG. 2, the direction perpendicular to the paper surface is preferably the longitudinal direction of the long rotating pointer 150 in FIG. Although only one light emitting diode is illustrated in FIG. 2 as follows, the long rotating pointer 150 in FIG. 1 may be designed to incorporate an arbitrary number of light emitting diodes in the longitudinal direction.

図２の回転する指針１５０は、遮光性の基板１ａに高反射性の回路配線１ｃが形成された回路配線基板１に、III族窒化物系化合物半導体発光素子２００が固定され、ワイヤボンディング３ｎ及び３ｐにより導通が確保されている。また、発光領域Ｂを形成するため、遮光性の樹脂から成る枠部４と、その内部領域に充填された、光拡散材料が分散された封止樹脂５、これらの表層を覆う透光性の板材６が設けられている。尚、発光領域Ｂは、自らが発光する一次光源ではなく、光拡散材料により、その全体が光っているかのように視認される二次光源である。   The rotating pointer 150 shown in FIG. 2 includes a group III nitride compound semiconductor light-emitting device 200 fixed to a circuit wiring board 1 in which a highly reflective circuit wiring 1c is formed on a light-shielding board 1a. Conductivity is ensured by 3p. Further, in order to form the light emitting region B, the frame portion 4 made of a light-shielding resin, the sealing resin 5 filled with the light diffusing material and filled in the inner region, and the light-transmitting material covering these surface layers. A plate material 6 is provided. The light emitting region B is not a primary light source that emits light by itself, but a secondary light source that is visually recognized by a light diffusing material as if it is entirely shining.

III族窒化物系化合物半導体発光素子２００は、絶縁性基板２０に、任意層数のｎ型III族窒化物系化合物半導体領域２１ｎと任意層数のｐ型III族窒化物系化合物半導体領域２２ｐが形成されている。これらの一部には意図的にドーバントが添加されていない層又は領域が含まれていても良い。ｎ型III族窒化物系化合物半導体領域２１ｎとｐ型III族窒化物系化合物半導体領域２２ｐの間に、発光領域Ａが存在する。発光領域Ａは、単層又は単一量子井戸構造或いは多重量子井戸構造の発光層で構成される。   The group III nitride compound semiconductor light emitting device 200 includes an insulating substrate 20 having an n-type group III nitride compound semiconductor region 21n having an arbitrary number of layers and a p-type group III nitride compound semiconductor region 22p having an arbitrary number of layers. Is formed. Some of these may include layers or regions to which dovant is not intentionally added. A light emitting region A exists between the n-type group III nitride compound semiconductor region 21n and the p-type group III nitride compound semiconductor region 22p. The light emitting region A is composed of a light emitting layer having a single layer, a single quantum well structure, or a multiple quantum well structure.

このような構成の図２の回転する指針１５０は、III族窒化物系化合物半導体発光素子２００が発光すると、次のように光が拡散し図２内上方に放出される。即ち、一次光源であるIII族窒化物系化合物半導体発光素子２００の発光領域Ａから発せられた光は、光拡散材料が分散された封止樹脂５と透光性の板材６とを透過して直接上方に放出される他、封止樹脂５に分散された光拡散材料により拡散される。或いは、回路配線基板１の高反射性の回路配線１ｃにより反射される。こうして、図２の回転する指針１５０の発光領域Ｂ全体が発光しているかの如く視認される。   In the rotating pointer 150 of FIG. 2 configured as described above, when the group III nitride compound semiconductor light emitting device 200 emits light, light is diffused and emitted upward in FIG. That is, the light emitted from the light emitting region A of the group III nitride compound semiconductor light emitting device 200 as the primary light source passes through the sealing resin 5 in which the light diffusion material is dispersed and the translucent plate 6. In addition to being directly emitted upward, it is diffused by the light diffusing material dispersed in the sealing resin 5. Alternatively, the light is reflected by the highly reflective circuit wiring 1 c of the circuit wiring board 1. In this way, the entire light emitting area B of the rotating pointer 150 shown in FIG.

図２の構成で、III族窒化物系化合物半導体発光素子２００として緑色発光のものを用い、同様に例えば赤色発光ダイオードを図２紙面垂直方向手前又は奥に設けると、図１の回転する指針１５０は、緑色、赤色、及びそれらの中間色（例えば黄色）に発光させることができる。そこで、燃費の閾値を１つ設けて、当該閾値よりも燃費が良い場合には図１の回転する指針１５０を緑色に発光させ、当該閾値よりも燃費が悪い場合には図１の回転する指針１５０を赤色に発光させることで、色調により燃費を感覚的に運転者に知らせることが可能となる。このように、本実施例によれば、色調により燃費を感覚的に運転者に知らせることが可能な、燃費表示装置を兼ねた速度計（車両用表示計）を構成することができる。   In the configuration of FIG. 2, a group III nitride compound semiconductor light emitting device 200 that emits green light is used. Similarly, for example, when a red light emitting diode is provided in front of or behind the paper in FIG. Can emit light in green, red, and their intermediate colors (eg yellow). Therefore, one fuel efficiency threshold value is provided, and when the fuel efficiency is better than the threshold value, the rotating pointer 150 in FIG. 1 emits green light, and when the fuel efficiency is worse than the threshold value, the rotating pointer in FIG. By causing 150 to emit red light, it becomes possible to inform the driver of the fuel consumption sensuously by the color tone. As described above, according to this embodiment, it is possible to configure a speedometer (vehicle display meter) that also serves as a fuel consumption display device capable of sensibly informing the driver of fuel consumption by color tone.

図３は、図２の回転する指針１５０の構成を若干変形した回転する指針１６０の構成を示す断面図である。図３においても、紙面に垂直方向を回転する指針１６０の長手方向とすると良い。図３にも１個の発光ダイオードのみを図示しているが、その長手方向に任意個数の発光ダイオードを組み込む設計として良い。   FIG. 3 is a cross-sectional view showing the configuration of the rotating pointer 160 obtained by slightly modifying the configuration of the rotating pointer 150 shown in FIG. In FIG. 3 as well, the longitudinal direction of the pointer 160 rotating in the direction perpendicular to the paper surface is preferable. FIG. 3 also shows only one light emitting diode, but it may be designed to incorporate an arbitrary number of light emitting diodes in the longitudinal direction.

図３の回転する指針１６０においては、光拡散材料が分散された、透光性の基板１ｂを有する回路配線基板１’を用いる。III族窒化物系化合物半導体発光素子２００、ワイヤボンディング３ｎ及び３ｐ、光拡散材料が分散された封止樹脂５は図２の回転する指針１５０と同様に設ける。但し、光拡散材料が分散された封止樹脂５を形成する際には図２の回転する指針１５０のような遮光性の樹脂から成る枠部６を設けない。また、封止樹脂５の全体を少なくとも内面が高反射性の材料から成る枠部７により覆う。本実施例においては回路配線基板１’を介して図内上方向に光を取り出すので、回路配線基板１’の回路配線１ｃを設けていない側には遮光材から成る遮光部８を設けて、発光領域Ｂを形どると良い。なお、遮光部８は省略可能である。図３では省略したが、ｎ型III族窒化物系化合物半導体領域２１ｎとワイヤボンディング３ｎとの間にはｎ電極が、ｐ型III族窒化物系化合物半導体領域２２ｐとワイヤボンディング３ｐとの間にはｐ電極が形成されているものとする。また、図３では回路配線１ｃが基板部１ｂの図３内下側でIII族窒化物系化合物半導体発光素子２００が配置されていない大部分の面積を覆うかのように記載したが、回路配線１ｃは、III族窒化物系化合物半導体発光素子２００に通電可能なように形成されれば良く、基板部１ｂの下側を覆う必要は無い。   In the rotating pointer 160 shown in FIG. 3, a circuit wiring board 1 ′ having a light transmitting substrate 1 b in which a light diffusion material is dispersed is used. The group III nitride compound semiconductor light emitting device 200, the wire bondings 3n and 3p, and the sealing resin 5 in which the light diffusion material is dispersed are provided in the same manner as the rotating pointer 150 in FIG. However, when forming the sealing resin 5 in which the light diffusing material is dispersed, the frame portion 6 made of a light shielding resin such as the rotating pointer 150 in FIG. 2 is not provided. Further, the entire sealing resin 5 is covered with a frame portion 7 having at least an inner surface made of a highly reflective material. In this embodiment, light is extracted in the upward direction in the figure through the circuit wiring board 1 ′. Therefore, a light shielding portion 8 made of a light shielding material is provided on the side of the circuit wiring board 1 ′ where the circuit wiring 1c is not provided. The light emitting area B may be shaped. The light shielding unit 8 can be omitted. Although omitted in FIG. 3, an n electrode is provided between the n-type group III nitride compound semiconductor region 21n and the wire bonding 3n, and between the p-type group III nitride compound semiconductor region 22p and the wire bonding 3p. Suppose that a p-electrode is formed. In FIG. 3, the circuit wiring 1 c is illustrated as if it covers most of the area where the group III nitride compound semiconductor light emitting element 200 is not disposed on the lower side of the substrate portion 1 b in FIG. 3. 1c may be formed so as to be able to energize the group III nitride compound semiconductor light emitting device 200, and does not need to cover the lower side of the substrate portion 1b.

図３の回転する指針１６０においては、III族窒化物系化合物半導体発光素子２００が発光すると、次のように光が拡散し図３内上方に放出される。即ち、一次光源であるIII族窒化物系化合物半導体発光素子２００の発光領域Ａから発せられた光は、光拡散材料が分散された封止樹脂５と、光拡散材料が分散された透光性の基板１ｂに放出される。この際、光拡散材料が分散された透光性の基板１ｂから直接上方に放出される他、当該基板１ｂと封止樹脂５に分散された光拡散材料により拡散される。或いは、枠部７の内面の高反射性材料により反射される。こうして、封止樹脂５と当該基板１ｂに分散された光拡散材料により拡散されることで、図３の回転する指針１６０の発光領域Ｂ全体が発光しているかの如く視認される。図３の構成においても、例えば赤色発光ダイオードを図３紙面垂直方向手前又は奥に設けるて、図１と同様に構成すると、回転する指針１６０は、緑色、赤色、及びそれらの中間色（例えば黄色）に発光させることができる。こうして、実施例１同様に、色調により燃費を感覚的に運転者に知らせることが可能な、燃費表示装置を兼ねた速度計（車両用表示計）を構成することができる。   In the rotating pointer 160 of FIG. 3, when the group III nitride compound semiconductor light emitting device 200 emits light, the light is diffused and emitted upward in FIG. That is, the light emitted from the light emitting region A of the group III nitride compound semiconductor light emitting device 200 as the primary light source is transmitted through the sealing resin 5 in which the light diffusing material is dispersed and the light transmitting property in which the light diffusing material is dispersed. To the substrate 1b. At this time, the light diffusing material is directly emitted upward from the light-transmitting substrate 1b in which the light diffusing material is dispersed, and is also diffused by the light diffusing material dispersed in the substrate 1b and the sealing resin 5. Alternatively, the light is reflected by the highly reflective material on the inner surface of the frame portion 7. Thus, by diffusing with the sealing resin 5 and the light diffusing material dispersed on the substrate 1b, it is visually recognized as if the entire light emitting region B of the rotating pointer 160 in FIG. 3 is emitting light. Also in the configuration of FIG. 3, for example, when a red light emitting diode is provided in front of or behind the paper in FIG. 3 and configured similarly to FIG. 1, the rotating pointer 160 has green, red, and intermediate colors (for example, yellow). Can emit light. Thus, as in the first embodiment, a speedometer (vehicle display meter) that also serves as a fuel consumption display device capable of sensibly informing the driver of fuel consumption by color tone can be configured.

尚、発光素子の回路配線基板への固定方法は任意である。絶縁性基板を有するものについては図では説明を省略したが、接着剤を用いても良い。
また、図３では内面が高反射性の部材から成る枠部を形成する場合を示したが、例えば高反射性部材を含んだペースト等にディップして被膜を形成しても良い。 In addition, the fixing method to the circuit wiring board of a light emitting element is arbitrary. The description of the substrate having an insulating substrate is omitted in the figure, but an adhesive may be used.
Further, FIG. 3 shows the case where the inner surface is formed with a frame portion made of a highly reflective member. However, for example, a film may be formed by dipping in a paste containing a highly reflective member.

本発明の具体的な一実施例に係る燃費表示装置を兼ねた速度計の平面図。The top view of the speedometer which served as the fuel consumption display apparatus which concerns on one specific Example of this invention. 回転する指針１５０の構成を示す断面図。Sectional drawing which shows the structure of the pointer 150 to rotate. 他の実施例に係る回転する指針１６０の構成を示す断面図。Sectional drawing which shows the structure of the rotating pointer 160 which concerns on another Example.

符号の説明Explanation of symbols

１００：燃費表示装置を兼ねた速度計（車両用表示計）
１５０、１６０：回転する指針
１、１’：回路配線基板
１ａ：遮光性の基板
１ｂ：透光性の母材に光拡散材料が分散された基板
１ｃ：回路配線
２００：III族窒化物系化合物半導体発光素子
３ｎ、３ｐ：ワイヤボンディング
４：遮光性の樹脂から成る枠部
５：光拡散材料が分散された封止樹脂
６：透光性の板材
７：少なくとも内面が高反射性の部材から成る枠部
８：遮光部 100: Speedometer also serving as a fuel consumption display device (vehicle display meter)
150, 160: Rotating pointer 1, 1 ′: Circuit wiring board 1a: Light-shielding board 1b: Substrate in which light diffusing material is dispersed in a light-transmitting base material 1c: Circuit wiring 200: Group III nitride compound Semiconductor light emitting element 3n, 3p: Wire bonding 4: Frame portion made of light-shielding resin 5: Sealing resin in which light diffusion material is dispersed 6: Translucent plate material 7: At least the inner surface is made of a highly reflective member Frame part 8: Shading part

Claims (2)

回転する指針により、車速、エンジン回転数、水温、燃料残量その他の車両の走行状態等を表示するための車両用表示計において、
少なくとも異なる２色の発光素子を前記回転する指針に設け、
前記回転する指針から発する光の色調を可変として、
前記回転する指針から発する光の色調により前記車両の燃費表示を行うことを特徴とする燃費表示装置を兼ねた車両用表示計。 In a vehicle indicator for displaying vehicle speed, engine speed, water temperature, fuel remaining amount and other vehicle running conditions, etc., by means of a rotating pointer,
Providing at least two different color light emitting elements on the rotating pointer;
As the color tone of light emitted from the rotating pointer is variable,
A vehicle indicator which also serves as a fuel consumption display device, which displays fuel consumption of the vehicle based on a color tone of light emitted from the rotating pointer. 前記回転する指針は、
回路配線基板と、
前記回路配線基板の一方の面に配置され、回路配線に接続された、前記少なくとも異なる２色の発光素子と、
前記発光素子を封止する封止樹脂とを有し
前記回路配線基板及び前記封止樹脂の少なくとも一方に光拡散材料が分散されていることを特徴とする請求項１に記載の車両用表示計。 The rotating pointer is
A circuit wiring board;
The at least two different color light emitting elements disposed on one surface of the circuit wiring board and connected to the circuit wiring;
The vehicle display meter according to claim 1, further comprising: a sealing resin for sealing the light emitting element, wherein a light diffusion material is dispersed in at least one of the circuit wiring board and the sealing resin. .
JP2007072857A 2007-03-20 2007-03-20 Indicator for vehicle Pending JP2008230402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
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Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011063172A (en) * 2009-09-18 2011-03-31 Isuzu Motors Ltd Fuel consumption-saving support device
CN102574466A (en) * 2009-10-02 2012-07-11 约翰逊控股公司 Display unit
FR2973874A1 (en) * 2011-04-07 2012-10-12 Johnson Controls Tech Co Indicator device e.g. speedometer for use in fascia of electric car, has light source, where device is operated in operational modes, and operational modes provide additional information related to instantaneous consumption of energy

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011063172A (en) * 2009-09-18 2011-03-31 Isuzu Motors Ltd Fuel consumption-saving support device
CN102574466A (en) * 2009-10-02 2012-07-11 约翰逊控股公司 Display unit
JP2013506589A (en) * 2009-10-02 2013-02-28 ジョンソン・コントロールズ・ゲー・エム・ベー・ハー Display device
US9120378B2 (en) 2009-10-02 2015-09-01 Andreas Deubzer Display unit
KR101835013B1 (en) * 2009-10-02 2018-03-08 존슨 컨트롤스 게엠베하 Display unit
FR2973874A1 (en) * 2011-04-07 2012-10-12 Johnson Controls Tech Co Indicator device e.g. speedometer for use in fascia of electric car, has light source, where device is operated in operational modes, and operational modes provide additional information related to instantaneous consumption of energy

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