JP2008232826A - Fuel consumption display system - Google Patents

Fuel consumption display system Download PDF

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JP2008232826A
JP2008232826A JP2007072858A JP2007072858A JP2008232826A JP 2008232826 A JP2008232826 A JP 2008232826A JP 2007072858 A JP2007072858 A JP 2007072858A JP 2007072858 A JP2007072858 A JP 2007072858A JP 2008232826 A JP2008232826 A JP 2008232826A
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light emitting
fuel consumption
light
region
circuit wiring
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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 a fuel consumption display system capable of sensuously informing a driver of whether the fuel consumption is good or bad. <P>SOLUTION: The fuel consumption display device 200 is constituted of a frame region 21 of dark color such as black or gray to brown etc., and one luminous region 22. In the luminous region 22 at least a line of green LEDs from the left end 22L reaching to the right end 22R and the line of red LEDs from left end 22L reaching to the right end 22R are assembled. The method of display of the fuel consumption can be displayed from good to bad in following optional stages. The luminous region 22 from right end 22R to the left end 22L is all green luminescent. The luminescent region 22 from the left end 22L to the boundary (22-1) is red, the boundary (22-3) is nonluminescent or intermediate color of yellow luminescent, and from the right end of 22R to the boundary part (22-2) is green luminescent. The luminescent region 22 from the left end 22L to the right end 22R is all red luminescent. <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。   The present invention relates to an apparatus for displaying the fuel consumption of a vehicle.

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 a ratio between the travel distance 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、棒グラフ状に燃費を表示する燃費表示装置において、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 present inventors have conceived that in a fuel consumption display device that displays fuel consumption in a bar graph shape, the fuel consumption can be sensed by changing the color tone of the emitted light, and the present invention has been completed.

請求項１に係る発明は、車両の燃費表示装置において、直線又は曲線上に連続又は断続して形成された表示領域に、少なくとも１ヶ所に少なくとも２色の異なる発光素子を配置し、当該直線又は曲線上に連続又は断続して形成された表示領域の、発光素子の点灯により輝度を有する領域の長手方向の長さと、２色の異なる発光素子を配置した領域の色調とにより燃費状況を表示することを特徴とする車両の燃費表示装置である。
ここで直線上に連続して形成された表示領域とは、連続した可変長の１個の棒グラフ表示を想定するものであり、直線上に断続して形成された表示領域とは、有限個の表示領域により可変長の１個の棒グラフ様に表示されるものを言うものとする。曲線上の場合は、当該棒グラフが湾曲等したものを想定するものである。 According to the first aspect of the present invention, in the fuel consumption display device for a vehicle, at least one light emitting element of two colors is arranged in at least one place in a display area formed continuously or intermittently on a straight line or a curve. The fuel consumption status is displayed by the length in the longitudinal direction of the display area that is continuously or intermittently formed on the curve and having the luminance in the longitudinal direction when the light emitting element is turned on, and the color tone of the area where the light emitting elements of two different colors are arranged. This is a fuel consumption display device for a vehicle.
Here, the display area continuously formed on the straight line is assumed to be one bar graph display having a continuous variable length, and the display area formed intermittently on the straight line is a finite number of display areas. It shall be what is displayed as one bar graph of variable length depending on the display area. In the case of a curve, it is assumed that the bar graph is curved.

また、請求項２に係る発明は、車両の燃費表示装置において、２つの端部を結ぶように直線又は曲線上に実質的に連続して形成された表示領域に、２色の異なる発光素子を配置し、当該直線又は曲線上に連続又は断続して形成された表示領域の、両端から各々異なる色の発光素子の発光領域が連続するように点灯させて、異なる色に点灯した表示領域の境界部の位置により燃費状況を表示することを特徴とする車両の燃費表示装置である。
本発明は、１の領域の両端から色調の異なる２本の棒グラフが、位置変動する境界領域を挟んでいる状態を想定するものである。当該境界領域は、暗部として視認されても良く、２色の混色により中間色となっているものでも良い。 According to a second aspect of the present invention, in the fuel consumption display device for a vehicle, two different colors of light emitting elements are provided in a display region formed substantially continuously on a straight line or a curve so as to connect two end portions. The boundary between the display areas that are lit in different colors by arranging and lighting the display areas formed continuously or intermittently on the straight line or curve so that the light emitting areas of the light emitting elements of different colors are continuous from both ends. A fuel consumption display device for a vehicle, characterized in that the fuel consumption status is displayed according to the position of the part.
The present invention assumes a state in which two bar graphs having different color tones from both ends of one region sandwich a boundary region whose position varies. The boundary area may be visually recognized as a dark part, or may be an intermediate color by mixing two colors.

請求項３に係る発明は、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。   The invention according to claim 3 is a circuit wiring board, a light emitting element of at least two different colors arranged on one surface of the circuit wiring board and connected to the circuit wiring, and a sealing resin for sealing the light emitting element And a light diffusion material is dispersed in at least one of the circuit wiring board and the sealing resin.

請求項１に係る発明によれば、発光素子の点灯により輝度を有する領域の長手方向の長さと、２色の異なる発光素子を配置した領域の色調とにより燃費状況を表示できるので、例えば燃費が良い場合には１つの色の光の棒グラフで、その長さにより燃費状況を示し、燃費が悪い場合にはもう一方の色の光の棒グラフに切り替えることで、燃費が一定限度以下に悪化したことを表示し、感覚的に運転者に伝えることが可能となる。   According to the first aspect of the present invention, since the fuel consumption status can be displayed by the length in the longitudinal direction of the region having brightness by lighting of the light emitting element and the color tone of the region in which the light emitting elements having two different colors are arranged, for example, the fuel consumption is improved. When it is good, the light bar graph of one color shows the fuel consumption status by its length, and when the fuel efficiency is bad, switching to the light bar graph of the other color has deteriorated the fuel consumption below a certain limit Can be displayed and conveyed to the driver sensuously.

請求項２に係る発明によれば、２色の異なる発光領域が境界領域を挟んで各々長さが変動する。この場合、第１の色の発光領域の長さが長くなると、第２の色の発光領域の長さが短くなる。すると、例えば燃費が良い状態においては、第１の色の発光領域の長さを長くし、燃費が悪い状態においては第２の色の発光領域の長さを長くする。燃費が向上すると、境界領域は第１の色の発光領域の長さを長くする方向、即ち第２の発光領域の終端に向って動く。例えば最も燃費が良い状態では、第１の色の発光領域が第２の発光領域の終端に達して、全体を第１の色の発光領域で占有させても良い。一方、燃費が悪化すると、境界領域は第２の色の発光領域の長さを長くする方向、即ち第１の発光領域の終端に向って動く。例えば最も燃費が悪い状態では、第２の色の発光領域が第１の発光領域の終端に達して、全体を第２の色の発光領域で占有させても良い。このように、燃費の現状と共に、燃費が向上中であるか、悪化中であるかを表示し、感覚的に運転者に伝えることが可能となる。   According to the second aspect of the present invention, the lengths of the light emitting areas having different colors vary with respect to the boundary area. In this case, when the length of the first color light emitting region is increased, the length of the second color light emitting region is decreased. Then, for example, in the state where the fuel consumption is good, the length of the light emission region of the first color is lengthened, and in the state where the fuel consumption is bad, the length of the light emission region of the second color is lengthened. When the fuel efficiency is improved, the boundary area moves toward the direction of increasing the length of the light emitting area of the first color, that is, toward the end of the second light emitting area. For example, in the state with the best fuel consumption, the first color light emitting area may reach the end of the second light emitting area, and the entire area may be occupied by the first color light emitting area. On the other hand, when the fuel efficiency is deteriorated, the boundary area moves toward the direction of increasing the length of the light emitting area of the second color, that is, toward the end of the first light emitting area. For example, in the state where the fuel efficiency is the worst, the light emitting area of the second color may reach the end of the first light emitting area, and the whole may be occupied by the light emitting area of the second color. In this way, along with the current state of fuel consumption, it is possible to display whether the fuel consumption is improving or worsening and inform the driver sensuously.

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、発光領域が、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、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 between the two colors, and to emit an intermediate color by mixing these lights, it is necessary that the light emitting region has a circuit wiring board in which the light emitting element is incorporated. 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 light emitting region is made of a circuit wiring board in which a light diffusing material is dispersed or a sealing resin in which the light diffusing material is dispersed so that the light emitting region can be visually recognized directly or through a transparent covering material. Thus, the present invention can be configured.

本発明の燃費表示装置は、例えば４輪車においては速度計その他の組み込まれたインストルメンタルパネルに配置することが好ましい。特に、運転者が頻繁に確認する速度計の近くが好ましい。   For example, in a four-wheeled vehicle, the fuel consumption display device of the present invention is preferably disposed on a speedometer or other incorporated instrument panel. In particular, the vicinity of the speedometer frequently checked by the driver is preferable.

２色の棒グラフの境界位置で示す場合は、例えば速度計等の外枠表示を用いることもできる。その際、外枠の全体を使用しても、一部を使用しても良い。例えば枠部の下部が水平方向に延び、枠部の上部が円弧を描く枠部の場合、当該水平方向部分のみに本願発明を適用しても良く、当該円弧部分のみに本願発明を適用しても良い。   In the case of indicating the boundary position of a two-color bar graph, for example, an outer frame display such as a speedometer can be used. At that time, the entire outer frame or a part thereof may be used. For example, in the case where the lower part of the frame part extends in the horizontal direction and the upper part of the frame part draws an arc, the present invention may be applied only to the horizontal part, and the present invention is applied only to the arc part. Also good.

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 performing wire bonding, wedge bonding using ultrasonic waves eliminates the need for heat treatment and reduces the 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.

発光領域の周囲は黒又は灰色乃至は褐色その他の暗色とすると、発光領域が視認しやすい。回路配線基板を介して光を取り出す場合に、当該暗色部を例えば回路配線基板光取り出し側面の所望の領域に遮光材料を直接印刷しても良い。   If the periphery of the light emitting area is black or gray or brown or other dark color, the light emitting area is easily visible. When light is extracted through the circuit wiring board, the light-shielding material may be directly printed on a desired region of the dark side of the circuit wiring board light extraction side, for example.

〔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。この際、発光領域の周囲は黒又は灰色乃至は褐色その他の暗色とすると、発光領域が視認しやすいので、当該暗色部を例えば透光性の板材の所望の領域に遮光材料を直接印刷しても良い。 [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. At this time, if the periphery of the light emitting area is black, gray, brown, or other dark color, the light emitting area is easy to visually recognize. Therefore, the dark color portion is directly printed on a desired area of a light-transmitting plate, for example Also good.

図１は本発明の具体的な一実施例に係る、燃費表示装置１００の平面図である。燃費表示装置１００は、黒又は灰色乃至は褐色その他の暗色から成る枠領域１と、１０個の発光領域２ａ乃至２ｊ、及び１個の発光領域３とから成る。合計１１個の発光領域のうち、発光領域２ａ乃至２ｊは発光色が同じ緑色であり、発光領域３は発光領域２ａ乃至２ｊと同じ緑色と、赤色との２色に切り替えることが可能である。尚、合計１１個の発光領域は非点灯とすることもできる（１．Ａ）。このような構成は、発光領域２ａ乃至２ｊに緑色発光ダイオードを組み込み、発光領域３には緑色発光ダイオードと赤色発光ダイオードを組み込むことで可能である。各発光領域の構成は後述する。   FIG. 1 is a plan view of a fuel consumption display device 100 according to a specific embodiment of the present invention. The fuel consumption display device 100 includes a frame region 1 made of black, gray, brown, or other dark color, ten light emitting regions 2 a to 2 j, and one light emitting region 3. Of the 11 light emitting areas in total, the light emitting areas 2a to 2j have the same green light emission color, and the light emitting area 3 can be switched to the same green and red colors as the light emitting areas 2a to 2j. Note that a total of 11 light emitting areas can be turned off (1.A). Such a configuration is possible by incorporating a green light emitting diode in the light emitting regions 2a to 2j and incorporating a green light emitting diode and a red light emitting diode in the light emitting region 3. The configuration of each light emitting area will be described later.

本実施例に係る燃費表示装置１００によれば、燃費の表示方法は、良い方から悪い方に、次の１３段階とすることができる。
発光領域２ａ乃至２ｊ及び発光領域３の１１個が緑色に点灯。
発光領域２ａが非点灯、２ｂ乃至２ｊ及び発光領域３の１０個が緑色に点灯。
発光領域２ａ及び２ｂが非点灯、２ｃ乃至２ｊ及び発光領域３の９個が緑色に点灯。
発光領域２ａ乃至２ｃが非点灯、２ｄ乃至２ｊ及び発光領域３の８個が緑色に点灯。
発光領域２ａ乃至２ｄが非点灯、２ｅ乃至２ｊ及び発光領域３の７個が緑色に点灯。
発光領域２ａ乃至２ｅが非点灯、２ｆ乃至２ｊ及び発光領域３の６個が緑色に点灯。
発光領域２ａ乃至２ｆが非点灯、２ｇ乃至２ｊ及び発光領域３の５個が緑色に点灯。
発光領域２ａ乃至２ｇが非点灯、２ｈ乃至２ｊ及び発光領域３の４個が緑色に点灯。
発光領域２ａ乃至２ｈが非点灯、２ｉ乃至２ｊ及び発光領域３の３個が緑色に点灯。
発光領域２ａ乃至２ｉが非点灯、２ｊ及び発光領域３の２個が緑色に点灯。
発光領域２ａ乃至２ｊが非点灯、発光領域３の１個が緑色に点灯。
発光領域２ａ乃至２ｊが非点灯、発光領域３の１個が赤色に点灯。
発光領域２ａ乃至２ｊが非点灯、発光領域３の１個が赤色で点滅。 According to the fuel consumption display device 100 according to the present embodiment, the fuel consumption display method can be performed in the following 13 stages from the better to the worse.
Eleven of the light emitting areas 2a to 2j and the light emitting area 3 are lit in green.
The light emitting area 2a is not lit, 10 of 2b to 2j and the light emitting area 3 are lit in green.
The light emitting areas 2a and 2b are not lit, and 9 of 2c to 2j and the light emitting area 3 are lit in green.
The light emitting areas 2a to 2c are not lit, and 8 of the light emitting areas 3 are illuminated in green.
The light emitting areas 2a to 2d are not lit, and 7 elements 2e to 2j and the light emitting area 3 are lit green.
The light emitting areas 2a to 2e are not lit, and 6 lights of 2f to 2j and the light emitting area 3 are lit in green.
The light emitting areas 2a to 2f are not lit, and 5 lights of 2g to 2j and the light emitting area 3 are lit in green.
The light emitting areas 2a to 2g are not lit, and 4h, 2h to 2j and the light emitting area 3 are lit in green.
The light emitting areas 2a to 2h are not lit, and 3 of the light emitting areas 3 are illuminated in green.
The light emitting areas 2a to 2i are not lit, and 2j and the light emitting area 3 are lit in green.
The light emitting areas 2a to 2j are not lit, and one of the light emitting areas 3 is lit green.
The light emitting areas 2a to 2j are not lit, and one of the light emitting areas 3 is lit red.
The light emitting areas 2a to 2j are not lit, and one of the light emitting areas 3 blinks red.

例えば、図１．Ｂは、発光領域２ａ及び２ｂが非点灯、２ｃ乃至２ｊ及び発光領域３の９個が緑色に点灯した状態（右上から左下へのハッチング）を示している。また、図１．Ｃは発光領域２ａ乃至２ｉが非点灯、２ｊ及び発光領域３の２個が緑色に点灯した状態（右上から左下へのハッチング）を示している。また、図１．Ｄは発光領域２ａ乃至２ｊが非点灯、発光領域３の１個が赤色に点灯した状態（左上から右下へのハッチング）を示している。このように、図１の燃費表示装置１００は、燃費が良い場合には緑色の光の棒グラフの長さにより燃費状況を示し、燃費が悪い場合には赤色の光に切り替えることで、燃費が一定限度以下に悪化したことを表示し、感覚的に運転者に伝えることが可能である。   For example, FIG. B shows a state in which the light emitting areas 2a and 2b are not lit, and nine of the light emitting areas 2c to 2j and the light emitting area 3 are lit in green (hatching from upper right to lower left). In addition, FIG. C shows a state in which the light emitting areas 2a to 2i are not lit, and 2j and the light emitting area 3 are lit in green (hatching from upper right to lower left). In addition, FIG. D indicates a state in which the light emitting areas 2a to 2j are not lit and one of the light emitting areas 3 is lit in red (hatching from upper left to lower right). As described above, the fuel consumption display device 100 of FIG. 1 indicates the fuel consumption status by the length of the bar graph of green light when the fuel consumption is good, and switches to red light when the fuel consumption is bad, so that the fuel consumption is constant. It is possible to display that it has deteriorated below the limit and to inform the driver sensuously.

図２は本発明の具体的な一実施例に係る、燃費表示装置２００の平面図である。燃費表示装置２００は、黒又は灰色乃至は褐色その他の暗色から成る枠領域２１と、１個の発光領域２２から構成されている。発光領域２２は、その左端部２２Ｌと右端部２２Ｒを有する。発光領域２２には、少なくとも左端部２２Ｌから右端部２２Ｒまで達する緑色発光ダイオードの列と、左端部２２Ｌから右端部２２Ｒまで達する赤色発光ダイオードの列とが組み込まれている。所望の制御装置により、緑色発光ダイオードは、全て非点灯、右端部２２Ｒに最も近いダイオードのみ点灯、右端部２２Ｒに最も近いダイオードから任意個数連続させて点灯、全ダイオード点灯と切り替えることが可能である。同様に、赤色発光ダイオードは、全て非点灯、左端部２２Ｌに最も近いダイオードのみ点灯、左端部２２Ｌに最も近いダイオードから任意個数連続させて点灯、全ダイオード点灯と切り替えることが可能である。図２．Ａは緑色と赤色の発光ダイオードを全て非点灯とした状態である。   FIG. 2 is a plan view of a fuel consumption display device 200 according to a specific embodiment of the present invention. The fuel consumption display device 200 includes a frame region 21 made of black, gray, brown, or other dark color, and one light emitting region 22. The light emitting region 22 has a left end 22L and a right end 22R. The light emitting region 22 includes at least a row of green light emitting diodes extending from the left end 22L to the right end 22R and a row of red light emitting diodes extending from the left end 22L to the right end 22R. Depending on the desired control device, all of the green light emitting diodes can be switched off, not lit, only the diode closest to the right end 22R is lit, any number of diodes continuously connected to the right end 22R, and all diodes can be switched on. . Similarly, all of the red light emitting diodes can be switched to non-lighting, only the diode closest to the left end 22L is lit, an arbitrary number of diodes are continuously lit from the diode closest to the left end 22L, and all diodes are lit. FIG. A is a state where all the green and red light emitting diodes are not lit.

図２に係る燃費表示装置２００によれば、燃費の表示方法は、良い方から悪い方に、次の任意段階とすることができる。
発光領域２２は、その右端部２２Ｒから左端部２２Ｌまで全て緑色発光。
発光領域２２は、その左端部２２Ｌから境界部まで（２２−１）が赤色に、境界部（２２−３）が非発光又は中間色である黄色に発光、右端部２２Ｒから当該境界部（２２−２）まで緑色発光（図２．Ｂ及び図２．Ｃ）。
発光領域２２は、その左端部２２Ｌから右端部２２Ｒまで全て赤色発光。
この際、境界部２２−３の位置を可変として、境界部の左側の赤色発光領域２２−１と境界部の右側の緑色発光領域２２−３の長さが可変となるようにする。即ち、それらの領域を全て併せたものは発光領域２２全体であって一定であるが、そのうちの、赤色発光領域２２−１と緑色発光領域２２−３の割合が異なるようにできる。 According to the fuel consumption display device 200 according to FIG. 2, the fuel consumption display method can be set to the following arbitrary stage from the better to the worse.
The light emitting region 22 emits all green light from the right end 22R to the left end 22L.
The light emitting region 22 emits light from the left end 22L to the boundary portion (22-1) in red, and the boundary portion (22-3) in non-light emitting or intermediate yellow, and from the right end portion 22R to the boundary portion (22- Green emission up to 2) (Fig. 2.B and Fig. 2.C).
The light emitting region 22 emits red light from the left end 22L to the right end 22R.
At this time, the position of the boundary portion 22-3 is made variable, and the lengths of the red light emitting region 22-1 on the left side of the boundary portion and the green light emitting region 22-3 on the right side of the boundary portion are made variable. That is, the total of these regions is the entire light emitting region 22, and the ratio of the red light emitting region 22-1 and the green light emitting region 22-3 can be made different.

このように、図２の燃費表示装置２００は、燃費が良い場合には緑色の光の棒グラフの割合が大きく、燃費が悪い場合には赤色の光の棒グラフの割合が大きいので、感覚的に運転者に燃費を伝えることが可能である。また図２．Ｂ及び図２．Ｃの２つの状態の一方から他方に移る際に、境界部２２−３が移動すると共に緑色の光の棒グラフの割合が増加又は減少し、赤色の光の棒グラフの割合が減少又は増加することで、燃費の向上又は悪化を感覚的に運転者に伝えることが可能である。   As described above, the fuel efficiency display device 200 of FIG. 2 has a large ratio of the green light bar graph when the fuel efficiency is good and a large ratio of the red light bar graph when the fuel efficiency is bad. It is possible to convey fuel consumption to the person. FIG. B and FIG. When moving from one of the two states of C to the other, the boundary 22-3 moves and the proportion of the green light bar graph increases or decreases, and the proportion of the red light bar graph decreases or increases. It is possible to inform the driver of the improvement or deterioration of fuel consumption sensuously.

〔変形例〕
図３は変形例に係る燃費表示装置３００の平面図である。燃費表示装置３００は車両の速度計であり、回転する指針を有するものである。この、円弧状の枠部に図２の燃費表示装置２００の構成を適用する。すると、回転する指針を有する車両の速度計の円弧状の枠部が、境界部２２−３の位置を可変として、境界部の左側の赤色発光領域２２−１と境界部の右側の緑色発光領域２２−３の長さが可変となるようにできる。図３の燃費表示装置３００は、燃費が良い場合には、速度計の円弧状の枠部の緑色の光の割合が大きく、燃費が悪い場合には赤色の光の割合が大きいので、感覚的に運転者に燃費を伝えることが可能である。 [Modification]
FIG. 3 is a plan view of a fuel consumption display device 300 according to a modification. The fuel consumption display device 300 is a vehicle speedometer and has a rotating pointer. The configuration of the fuel consumption display device 200 of FIG. 2 is applied to the arc-shaped frame portion. Then, the arcuate frame portion of the speedometer of the vehicle having the rotating pointer makes the position of the boundary portion 22-3 variable, and the red light emitting region 22-1 on the left side of the boundary portion and the green light emitting region on the right side of the boundary portion. The length of 22-3 can be made variable. The fuel consumption display device 300 in FIG. 3 is sensory because the proportion of green light in the arc-shaped frame portion of the speedometer is large when the fuel consumption is good, and the proportion of red light is large when the fuel consumption is bad. It is possible to convey the fuel consumption to the driver.

〔発光ダイオードの実装方法の一例〕
上記実施例を適用するための、発光ダイオードの実装方法は、例えば次のようにすると良い。図４は上記各実施例の発光セグメントの構成の一例を示す断面図である。図４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、上記実施例の各発光セグメントとしては、各々任意個数の発光ダイオードを組み込む設計として良い。 [Example of LED mounting method]
For example, the light emitting diode mounting method for applying the above embodiment may be as follows. FIG. 4 is a cross-sectional view showing an example of the configuration of the light emitting segment of each of the above embodiments. FIG. 4 shows only one light emitting diode as follows, but each light emitting segment of the above embodiment may be designed to incorporate an arbitrary number of light emitting diodes.

図４の発光セグメントＵ１は、遮光性の基板４１ａに高反射性の回路配線４１ｃが形成された回路配線基板４１に、III族窒化物系化合物半導体発光素子４２が固定され、ワイヤボンディング４３ｎ及び４３ｐ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４４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４５、これらの表層を覆う透光性の板材４６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。   In the light emitting segment U1 of FIG. 4, a group III nitride compound semiconductor light emitting element 42 is fixed to a circuit wiring board 41 in which a highly reflective circuit wiring 41c is formed on a light shielding substrate 41a, and wire bonding 43n and 43p are performed. The continuity is ensured. Further, in order to form the light emitting region B, a frame portion 44 made of a light-shielding resin, a sealing resin 45 filled in the inner region with a light diffusion material dispersed therein, and a light-transmitting material covering these surface layers. A plate material 46 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４２は、絶縁性基板４２０に、任意層数のｎ型III族窒化物系化合物半導体領域４２１ｎと任意層数のｐ型III族窒化物系化合物半導体領域４２２ｐ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４２１ｎとｐ型III族窒化物系化合物半導体領域４２２ｐ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。   In the group III nitride compound semiconductor light emitting device 42, an n-type group III nitride compound semiconductor region 421n having an arbitrary number of layers and a p-type group III nitride compound semiconductor region 422p having an arbitrary number of layers are formed on an insulating substrate 420. Is formed. Some of these may include layers or regions to which dovant is not intentionally added. The light emitting region A exists between the n-type group III nitride compound semiconductor region 421n and the p-type group III nitride compound semiconductor region 422p. 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４の発光セグメントＵ１は、III族窒化物系化合物半導体発光素子４２が発光すると、次のように光が拡散し図４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４２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４５と透光性の板材４６とを透過して直接上方に放出される他、封止樹脂４５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４１の高反射性の回路配線４１ｃにより反射される。こうして、図４の発光セグメントＵ１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 light emitting segment U1 of FIG. 4 having such a structure, when the group III nitride compound semiconductor light emitting element 42 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 element 42 as the primary light source passes through the sealing resin 45 in which the light diffusing material is dispersed and the translucent plate 46. In addition to being directly emitted upward, it is diffused by a light diffusion material dispersed in the sealing resin 45. Alternatively, the light is reflected by the highly reflective circuit wiring 41 c of the circuit wiring board 41. In this way, the entire light emitting region B of the light emitting segment U1 in FIG.

図４の構成で、III族窒化物系化合物半導体発光素子４２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４紙面垂直方向手前又は奥に設けると、図４の発光セグメントＵ１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。尚、図２及び図３の発光領域２２においては、図４の紙面に垂直方向に並べた、所望の任意個数の緑色発光ダイオードの列と赤色発光ダイオードの列を用いる。   In the configuration of FIG. 4, a group III nitride compound semiconductor light emitting device 42 that emits green light is used. Similarly, when a red light emitting diode is provided in front of or behind the paper in FIG. 4, the light emitting segment U1 of FIG. , Green, red, and their intermediate colors (for example, yellow). In the light emitting region 22 of FIGS. 2 and 3, a desired arbitrary number of green light emitting diode rows and red light emitting diode rows arranged in the vertical direction on the paper surface of FIG. 4 are used.

〔発光ダイオードの実装方法の他の例〕
図５は、図４の発光セグメントＵ１の構成を若干変形した発光セグメントＵ２の構成を示す断面図である。図５にも１個の発光ダイオードのみを図示しているが、任意個数の発光ダイオードを組み込む設計として良い。 [Other examples of LED mounting methods]
FIG. 5 is a cross-sectional view showing a configuration of the light emitting segment U2 obtained by slightly modifying the configuration of the light emitting segment U1 of FIG. FIG. 5 also shows only one light emitting diode, but a design incorporating an arbitrary number of light emitting diodes may be used.

図５の発光セグメントＵ２においては、光拡散材料が分散された、透光性の基板４１ｂを有する回路配線基板４１’を用いる。III族窒化物系化合物半導体発光素子４２、ワイヤボンディング４３ｎ及び４３ｐ、光拡散材料が分散された封止樹脂４５は図４の発光セグメントＵ１と同様に設ける。但し、光拡散材料が分散された封止樹脂４５を形成する際には図４の発光セグメントＵ１のような遮光性の樹脂から成る枠部４６を設けない。また、封止樹脂４５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４７により覆う。本実施例においては回路配線基板４１’を介して図内上方向に光を取り出すので、回路配線基板４１’の回路配線４１ｃを設けていない側には遮光材から成る遮光部４８を設けて、発光領域Ｂを形どると良い。なお、遮光部４８は省略可能である。図５では省略したが、ｎ型III族窒化物系化合物半導体領域４２１ｎとワイヤボンディング４３ｎ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４２２ｐとワイヤボンディング４３ｐとの間にはｐ電極が形成されているものとする。また、図５では回路配線４１ｃが基板部４１ｂの図５内下側でIII族窒化物系化合物半導体発光素子４２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４１ｃは、III族窒化物系化合物半導体発光素子４２に通電可能なように形成されれば良く、基板部４１ｂの下側を覆う必要は無い。   In the light emitting segment U2 of FIG. 5, a circuit wiring board 41 'having a light transmitting substrate 41b in which a light diffusion material is dispersed is used. The group III nitride compound semiconductor light emitting device 42, the wire bonding 43n and 43p, and the sealing resin 45 in which the light diffusion material is dispersed are provided in the same manner as the light emitting segment U1 in FIG. However, when forming the sealing resin 45 in which the light diffusing material is dispersed, the frame portion 46 made of a light shielding resin like the light emitting segment U1 in FIG. 4 is not provided. Further, the entire sealing resin 45 is covered with a frame portion 47 made of a material having at least an inner surface highly reflective. In this embodiment, light is extracted in the upward direction in the figure through the circuit wiring board 41 ′. Therefore, a light shielding portion 48 made of a light shielding material is provided on the side of the circuit wiring board 41 ′ where the circuit wiring 41c is not provided. The light emitting area B may be shaped. The light shielding portion 48 can be omitted. Although omitted in FIG. 5, an n-electrode is provided between the n-type group III nitride compound semiconductor region 421n and the wire bonding 43n, and between the p-type group III nitride compound semiconductor region 422p and the wire bonding 43p. Suppose that a p-electrode is formed. In FIG. 5, the circuit wiring 41c is described as if it covers the majority of the area where the group III nitride compound semiconductor light emitting element 42 is not disposed on the lower side of the substrate portion 41b in FIG. 41c may be formed so as to be able to energize the group III nitride compound semiconductor light emitting element 42, and does not need to cover the lower side of the substrate portion 41b.

図５の発光セグメントＵ２においては、III族窒化物系化合物半導体発光素子４２が発光すると、次のように光が拡散し図５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４２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４５と、光拡散材料が分散された透光性の基板４１ｂ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４１ｂから直接上方に放出される他、当該基板４１ｂと封止樹脂４５に分散された光拡散材料により拡散される。或いは、枠部４７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４５と当該基板４１ｂに分散された光拡散材料により拡散されることで、図５の発光セグメントＵ２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５の構成においても、例えば赤色発光ダイオードを図４紙面垂直方向手前又は奥に設けて、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。   In the light emitting segment U2 in FIG. 5, when the group III nitride compound semiconductor light emitting element 42 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 element 42 which is the primary light source includes a sealing resin 45 in which the light diffusing material is dispersed and a light transmitting property in which the light diffusing material is dispersed. To the substrate 41b. At this time, the light diffusing material is directly emitted upward from the light-transmitting substrate 41b in which the light diffusing material is dispersed, and is also diffused by the light diffusing material dispersed in the substrate 41b and the sealing resin 45. Alternatively, the light is reflected by the highly reflective material on the inner surface of the frame 47. Thus, by diffusing with the sealing resin 45 and the light diffusing material dispersed on the substrate 41b, the entire light emitting region B of the light emitting segment U2 in FIG. 5 is visually recognized as emitting light. Also in the configuration of FIG. 5, for example, a red light emitting diode can be provided in front of or behind the paper in FIG. 4 to emit light in green, red, and an intermediate color (for example, yellow).

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５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.
FIG. 5 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１００の構成を示す平面図。The top view which shows the structure of the fuel consumption display apparatus 100 which concerns on one specific Example of this invention. 本発明の具体的な他の実施例に係る燃費表示装置２００の構成を示す平面図。The top view which shows the structure of the fuel consumption display apparatus 200 which concerns on the specific other Example of this invention. 本発明の具体的な他の実施例に係る燃費表示装置３００の構成を示す平面図。The top view which shows the structure of the fuel consumption display apparatus 300 which concerns on the specific other Example of this invention. 本発明の燃費表示装置に適用可能な発光セグメントＵ１の構成を示す断面図。Sectional drawing which shows the structure of the light emission segment U1 applicable to the fuel consumption display apparatus of this invention. 本発明の燃費表示装置に適用可能な発光セグメントＵ２の構成を示す断面図。Sectional drawing which shows the structure of the light emission segment U2 applicable to the fuel consumption display apparatus of this invention.

符号の説明Explanation of symbols

１００、２００、３００：燃費表示装置
１、２１：枠領域
２ａ〜２ｊ、３、２２：発光領域
２２Ｌ：左端部
２２Ｒ：右端部
２２−１：赤色発光領域
２２−２：緑色発光領域
２２−３：境界部
Ｕ１、Ｕ２：発光セグメント
４１：回路配線基板
４１ａ：基板
４１ｂ：透光性の母材から成り、光拡散材料が分散された基板
４１ｃ：回路配線
４２：III族窒化物系化合物半導体発光素子
４３ｎ、４３ｐ：ワイヤボンディング
４４：枠部
４５：光拡散材料が分散された封止樹脂
４６：透光性の材料からなる板材
４７：少なくとも内面に高反射性の部材を有する枠部
４８：遮光部
Ａ：III族窒化物系化合物半導体発光素子の発光領域
Ｂ：発光領域（視認されるもの） 100, 200, 300: Fuel consumption display device 21, 1: Frame region 2a to 2j, 3, 22: Light emitting region 22L: Left end 22R: Right end 22-1: Red light emitting region 22-2: Green light emitting region 22-3 : Boundary U1, U2: light emitting segment 41: circuit wiring board 41a: board 41b: substrate made of a light-transmitting base material and dispersed with a light diffusion material 41c: circuit wiring 42: Group III nitride compound semiconductor light emission Element 43n, 43p: Wire bonding 44: Frame portion 45: Sealing resin in which light diffusing material is dispersed 46: Plate material made of translucent material 47: Frame portion having a highly reflective member at least on the inner surface 48: Light shielding Part A: Light emitting region of group III nitride compound semiconductor light emitting device B: Light emitting region (visible)

Claims (3)

車両の燃費表示装置において、
直線又は曲線上に連続又は断続して形成された表示領域に、
少なくとも１ヶ所に少なくとも２色の異なる発光素子を配置し、
当該直線又は曲線上に連続又は断続して形成された表示領域の、前記発光素子の点灯により輝度を有する領域の長手方向の長さと、前記２色の異なる発光素子を配置した領域の色調とにより燃費状況を表示することを特徴とする車両の燃費表示装置。 In a fuel consumption display device for a vehicle,
In the display area formed continuously or intermittently on a straight line or curve,
Arrange at least one light emitting element of at least two colors in one place,
The length of the display area formed continuously or intermittently on the straight line or curve in the longitudinal direction of the area having luminance by lighting of the light emitting element and the color tone of the area in which the light emitting elements of two different colors are arranged A fuel consumption display device for a vehicle, characterized by displaying a fuel consumption status. 車両の燃費表示装置において、
２つの端部を結ぶように直線又は曲線上に実質的に連続して形成された表示領域に、
２色の異なる発光素子を配置し、
当該直線又は曲線上に連続又は断続して形成された表示領域の、両端から各々前記異なる色の発光素子の発光領域が連続するように点灯させて、
前記異なる色に点灯した表示領域の境界部の位置により燃費状況を表示することを特徴とする車両の燃費表示装置。 In a fuel consumption display device for a vehicle,
In a display area formed substantially continuously on a straight line or curve so as to connect two ends,
Arrange the light emitting elements of two different colors,
The display area formed continuously or intermittently on the straight line or curve is lit so that the light emitting areas of the different color light emitting elements are continuous from both ends,
A fuel consumption display device for a vehicle, wherein the fuel consumption status is displayed based on a position of a boundary portion of the display area lit in the different color. 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又は請求項２に記載の燃費表示装置。 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;
3. The light diffusing material is dispersed in at least one of the circuit wiring board and the sealing resin, and a sealing resin for sealing the light emitting element. 4. Fuel consumption display device.
JP2007072858A 2007-03-20 2007-03-20 Fuel consumption display system Withdrawn JP2008232826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007072858A JP2008232826A (en) 2007-03-20 2007-03-20 Fuel consumption display system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007072858A JP2008232826A (en) 2007-03-20 2007-03-20 Fuel consumption display system

Publications (1)

Publication Number Publication Date
JP2008232826A true JP2008232826A (en) 2008-10-02

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011240868A (en) * 2010-05-20 2011-12-01 Nissan Motor Co Ltd Information display device and information display method
CN102574466A (en) * 2009-10-02 2012-07-11 约翰逊控股公司 Display unit
JP2015064396A (en) * 2013-09-24 2015-04-09 日本精機株式会社 Display device for vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP2011240868A (en) * 2010-05-20 2011-12-01 Nissan Motor Co Ltd Information display device and information display method
JP2015064396A (en) * 2013-09-24 2015-04-09 日本精機株式会社 Display device for vehicle

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