JP2006294961A - Light emitting diode for lighting fixture of vehicle - Google Patents

Light emitting diode for lighting fixture of vehicle Download PDF

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Publication number
JP2006294961A
JP2006294961A JP2005115413A JP2005115413A JP2006294961A JP 2006294961 A JP2006294961 A JP 2006294961A JP 2005115413 A JP2005115413 A JP 2005115413A JP 2005115413 A JP2005115413 A JP 2005115413A JP 2006294961 A JP2006294961 A JP 2006294961A
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light emitting
emitting diode
light
shape
emitting chip
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JP2005115413A
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Japanese (ja)
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Ryujiro Ikuta
龍治郎 生田
Kazutaka Wada
一貴 和田
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Ichikoh Industries Ltd
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Ichikoh Industries Ltd
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Priority to JP2005115413A priority Critical patent/JP2006294961A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805—Shape
    • H01L2224/4809—Loop shape
    • H01L2224/48091—Arched

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  • Led Device Packages (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light emitting diode for lighting fixture of vehicle in which a luminous intensity distribution curve extending in the horizontal direction to the vertical direction is attained by simple contrivance. <P>SOLUTION: In the light emitting diode 1, a light emitting chip 2 has an outline other than rectangular profile which is long in the lateral direction but short in the longitudinal direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、車両灯具用の発光ダイオードの改良に関する。   The present invention relates to an improvement of a light emitting diode for a vehicle lamp.

従来から、車両灯具に用いられる発光ダイオードの発光チップの外形形状として、正方形のものが知られている（例えば、特許文献１、特許文献２参照。）。
実開昭６３−１３４５６１号公報 特開２００４−１５８２９２号公報 Conventionally, the external shape of the light-emitting chip of the light-emitting diode used in the vehicle lamp is known as a square (see, for example, Patent Document 1 and Patent Document 2).
Japanese Utility Model Publication No. 63-134561 JP 2004-158292 A

ところで、車両灯具では、上下方向に対して水平方向に延びる横長形状の配光パターンが得られるようにするのが望ましい。このため、従来、発光チップを保護するモールド樹脂の外形形状を工夫していた。   By the way, in a vehicle lamp, it is desirable to obtain a horizontally elongated light distribution pattern extending in the horizontal direction with respect to the vertical direction. For this reason, conventionally, the outer shape of the mold resin for protecting the light emitting chip has been devised.

また、発光ダイオードの発光チップとして、外形形状が長方形状のものを製作することが考えられるが、このような構成としたとしても、規格を満足する配光パターンが得られる発光ダイオードを製作するには、発光チップを保護するモールド樹脂の外形形状を工夫するか、車両灯具のレンズやリフレクター等の光学部材を必要とするという問題点がある。   In addition, it is conceivable to manufacture a light emitting chip of a light emitting diode with a rectangular outer shape, but even with such a configuration, a light emitting diode capable of obtaining a light distribution pattern that satisfies the standard is manufactured. However, there is a problem that the outer shape of the mold resin for protecting the light emitting chip is devised or an optical member such as a lens or a reflector of a vehicle lamp is required.

本発明は、上記の事情に鑑みて為されたもので、その目的とするところは、簡単な工夫により上下方向に対して水平方向に延びる配光パターンが得られる車両灯具用の発光ダイオードを提供することにある。   The present invention has been made in view of the above circumstances, and an object thereof is to provide a light-emitting diode for a vehicle lamp that can obtain a light distribution pattern extending in the horizontal direction with respect to the vertical direction by a simple device. There is to do.

請求項１に記載の車両灯具用の発光ダイオードは、発光チップの外形形状が長方形状を除く形状であってかつ横方向に長く縦方向に短いことを特徴とする。   The light-emitting diode for a vehicle lamp according to claim 1 is characterized in that the outer shape of the light-emitting chip is a shape excluding a rectangular shape and is long in the horizontal direction and short in the vertical direction.

請求項２に記載の車両灯具用の発光ダイオードは、前記発光チップの外形形状が菱形又は六角形状であることを特徴とする。   The light-emitting diode for a vehicle lamp according to claim 2 is characterized in that an outer shape of the light-emitting chip is a rhombus or a hexagon.

請求項３に記載の車両灯具用の発光ダイオードは、前記発光チップの外形形状が楕円形状であることを特徴とする。   The light-emitting diode for a vehicle lamp according to claim 3 is characterized in that an outer shape of the light-emitting chip is an elliptical shape.

請求項４に記載の車両灯具用の発光ダイオードは、前記発光チップの外形形状が異形形状であることを特徴とする。   The light-emitting diode for a vehicle lamp according to claim 4 is characterized in that an outer shape of the light-emitting chip is an irregular shape.

本発明によれば、発光チップの外形形状を長方形状を除く形状であってかつ横方向に長く縦方向に短くしたので、モールド樹脂の形状に変更を加えることなく横方向（水平方向）に長い発光パターンを得ることができる。   According to the present invention, since the outer shape of the light emitting chip is a shape excluding the rectangular shape and is long in the horizontal direction and short in the vertical direction, it is long in the horizontal direction (horizontal direction) without changing the shape of the mold resin. A light emission pattern can be obtained.

以下に、本発明に係わる車両灯具用の発光ダイオードの発明の実施の形態を図面を参照しつつ説明する。   Embodiments of a light emitting diode for a vehicle lamp according to the present invention will be described below with reference to the drawings.

（実施例１）
図１（ａ）は本発明に係わる車両灯具用の発光ダイオード（ＬＥＤ）の断面形状を示す概略図であって、この図１（ａ）において、１は発光ダイオード、２は発光チップ、３、４はリード線、５はこの発光チップ２を保護するモールド樹脂、６はワイヤである。 Example 1
FIG. 1A is a schematic view showing a cross-sectional shape of a light emitting diode (LED) for a vehicle lamp according to the present invention. In FIG. 1A, 1 is a light emitting diode, 2 is a light emitting chip, 4 is a lead wire, 5 is a mold resin for protecting the light emitting chip 2, and 6 is a wire.

その発光チップ２はここではその外形形状が図１（ｂ）に拡大して示すように菱形形状を呈している。その菱形形状の発光チップ２は横方向に長く縦方向に短い。その他の構成は、従来の発光ダイオードと同一の形状である。   Here, the light emitting chip 2 has a rhombus shape as shown in an enlarged view of FIG. The diamond-shaped light emitting chip 2 is long in the horizontal direction and short in the vertical direction. Other configurations are the same as the conventional light emitting diode.

この構成の発光ダイオード１によれば、発光ダイオード１を点灯させると、レンズ効果を有するモールド樹脂の形状に変更を加えることなく横方向（水平方向Ｈ）に長い発光パターン、すなわち、図２に示すように、上下方向（垂直方向Ｖ）に対して水平方向に延びる菱形形状の配光パターン７が得られる。
（実施例２）
図３（ａ）は本発明に係わる車両灯具用の発光ダイオード（ＬＥＤ）の断面形状を示す概略図であって、この図３（ａ）に示す発光ダイオード１は、発光チップ２の外形形状が図３（ｂ）に示すように楕円形状である点を除いて、図１（ａ）に示す発光ダイオード１とその構成は大略同一である。 According to the light emitting diode 1 having this configuration, when the light emitting diode 1 is turned on, a light emitting pattern that is long in the lateral direction (horizontal direction H) without changing the shape of the mold resin having a lens effect, that is, as shown in FIG. Thus, the rhombus-shaped light distribution pattern 7 extending in the horizontal direction with respect to the vertical direction (vertical direction V) is obtained.
(Example 2)
FIG. 3A is a schematic diagram showing a cross-sectional shape of a light-emitting diode (LED) for a vehicle lamp according to the present invention. The light-emitting diode 1 shown in FIG. Except for the elliptical shape as shown in FIG. 3B, the configuration of the light-emitting diode 1 shown in FIG.

この発光ダイオード１を用いた場合、図４に示す上下方向に対して水平方向に延びる楕円形状の配光パターン７’が得られる。
（変形例）
実施例１では、発光チップ２の外形形状を菱形とし、実施例２では、発光チップ２の外形形状を楕円形状としたが、図５（ａ）に示すように、発光チップ２の外形形状を横方向に長い六角形状としても良いし、図５（ｂ）に示すように、図５（ａ）に示す六角形状の発光チップ２の半形状と図３（ｂ）に示す楕円形状の発光チップ２の半形状とを組み合わせた異形形状としても良い。 When this light emitting diode 1 is used, an elliptical light distribution pattern 7 ′ extending in the horizontal direction with respect to the vertical direction shown in FIG. 4 is obtained.
(Modification)
In Example 1, the outer shape of the light-emitting chip 2 is a rhombus. In Example 2, the outer shape of the light-emitting chip 2 is an ellipse. However, as shown in FIG. A hexagonal shape that is long in the horizontal direction may be used. As shown in FIG. 5B, a half shape of the hexagonal light emitting chip 2 shown in FIG. 5A and an elliptical light emitting chip shown in FIG. It is good also as the unusual shape which combined 2 half shape.

本発明の実施例１に係わる発光ダイオードの説明図であって、（ａ）はその断面形状を示す概略図、（ｂ）は（ａ）に示す発光チップの外形形状を示す図である。It is explanatory drawing of the light emitting diode concerning Example 1 of this invention, Comprising: (a) is the schematic which shows the cross-sectional shape, (b) is a figure which shows the external shape of the light emitting chip | tip shown to (a). 図１に示す発光ダイオードにより得られる配光パターンを示す図である。It is a figure which shows the light distribution pattern obtained by the light emitting diode shown in FIG. 本発明の実施例１に係わる発光ダイオードの説明図であって、（ａ）はその断面形状を示す概略図、（ｂ）は（ａ）に示す発光チップの外形形状を示す図である。It is explanatory drawing of the light emitting diode concerning Example 1 of this invention, Comprising: (a) is the schematic which shows the cross-sectional shape, (b) is a figure which shows the external shape of the light emitting chip | tip shown to (a). 図３に示す発光ダイオードにより得られる配光パターンを示す図である。It is a figure which shows the light distribution pattern obtained by the light emitting diode shown in FIG. 本発明の発光チップの外形形状の変形例を示す図であって、（ａ）は発光チップの外形形状が横方向に長い発光チップを示す図、（ｂ）は発光チップの外形形状が異形形状を示す図である。It is a figure which shows the modification of the external shape of the light emitting chip of this invention, Comprising: (a) is a figure which shows the light emitting chip whose external shape of a light emitting chip is long in a horizontal direction, (b) is an external shape of the external shape of a light emitting chip. FIG.

符号の説明Explanation of symbols

１…発光ダイオード
２…発光チップ 1 ... light emitting diode 2 ... light emitting chip

Claims (4)

発光チップの外形形状が長方形状を除く形状であってかつ横方向に長く縦方向に短い車両灯具用の発光ダイオード。   A light-emitting diode for a vehicle lamp in which an outer shape of a light-emitting chip is a shape excluding a rectangular shape and is long in a horizontal direction and short in a vertical direction. 前記発光チップの外形形状が菱形又は六角形状であることを特徴とする請求項１に記載の車両灯具用の発光ダイオード。   The light emitting diode for a vehicle lamp according to claim 1, wherein an outer shape of the light emitting chip is a rhombus or a hexagon. 前記発光チップの外形形状が楕円形状であることを特徴とする請求項１に記載の車両灯具用の発光ダイオード。   The light-emitting diode for a vehicle lamp according to claim 1, wherein an outer shape of the light-emitting chip is an elliptical shape. 前記発光チップの外形形状が異形形状であることを特徴とする請求項１に記載の車両灯具用の発光ダイオード。   The light emitting diode for a vehicle lamp according to claim 1, wherein the outer shape of the light emitting chip is an irregular shape.
JP2005115413A 2005-04-13 2005-04-13 Light emitting diode for lighting fixture of vehicle Pending JP2006294961A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014038731A (en) * 2012-08-13 2014-02-27 Ichikoh Ind Ltd Semiconductor type light source of vehicular lighting tool, semiconductor type light source unit of vehicular lighting tool, and vehicular lighting tool
US9536996B2 (en) 2014-08-05 2017-01-03 Kabushiki Kaisha Toyota Chuo Kenkyusho Apparatus and method of manufacturing a support layer
JP2017143305A (en) * 2017-05-10 2017-08-17 日亜化学工業株式会社 Light-emitting device and method for manufacturing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014038731A (en) * 2012-08-13 2014-02-27 Ichikoh Ind Ltd Semiconductor type light source of vehicular lighting tool, semiconductor type light source unit of vehicular lighting tool, and vehicular lighting tool
US9536996B2 (en) 2014-08-05 2017-01-03 Kabushiki Kaisha Toyota Chuo Kenkyusho Apparatus and method of manufacturing a support layer
JP2017143305A (en) * 2017-05-10 2017-08-17 日亜化学工業株式会社 Light-emitting device and method for manufacturing the same

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