JPWO2020080132A1 - Light emitting device series of light emitting devices and light fixtures for vehicles - Google Patents

Light emitting device series of light emitting devices and light fixtures for vehicles Download PDF

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JPWO2020080132A1
JPWO2020080132A1 JP2020553060A JP2020553060A JPWO2020080132A1 JP WO2020080132 A1 JPWO2020080132 A1 JP WO2020080132A1 JP 2020553060 A JP2020553060 A JP 2020553060A JP 2020553060 A JP2020553060 A JP 2020553060A JP WO2020080132 A1 JPWO2020080132 A1 JP WO2020080132A1
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light emitting
light
emitting device
organic
panel
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徹 伊東
徹 伊東
志藤　雅也
雅也 志藤
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Koito Manufacturing Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/507—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking specific to autonomous vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/543—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking for indicating other states or conditions of the vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F21S43/145—Surface emitters, e.g. organic light emitting diodes [OLED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/15—Strips of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F21Y2115/15—Organic light-emitting diodes [OLED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

発光装置（１０）は、４５０ｎｍ〜４８５ｎｍに主波長を有する光を出射する第１発光部と、４９０ｎｍ〜４９８ｎｍに主波長を有する光を出射する第２発光部と、６１０ｎｍ〜６４０ｎｍに主波長を有する光を出射する第３発光部と、各発光部から出射される光の輝度を個別に制御して、各発光部からの光の合成光の色度を調整する制御部（１２２）と、を備える。The light emitting device (10) has a first light emitting unit that emits light having a main wavelength of 450 nm to 485 nm, a second light emitting unit that emits light having a main wavelength of 490 nm to 498 nm, and a main wavelength of 610 nm to 640 nm. A third light emitting unit that emits the light to be possessed, a control unit (122) that individually controls the brightness of the light emitted from each light emitting unit, and adjusts the chromaticity of the combined light of the light from each light emitting unit. To be equipped with.

Description

本発明は、発光装置および車両用灯具の発光装置シリーズに関する。 The present invention relates to a light emitting device series of light emitting devices and vehicle lamps.

近年、車両の自動運転技術の開発が進められている。特許文献１では、安全のために、自動運転中にランプを点灯させ、車両が自動運転中であることを周囲に知らせることが提案されている。 In recent years, the development of automatic driving technology for vehicles has been promoted. In Patent Document 1, for safety, it is proposed to turn on a lamp during automatic driving to notify the surroundings that the vehicle is in automatic driving.

特開２０１７−１４０９２９号公報JP-A-2017-140929

従来、車両には各種のランプが既に取り付けられている。したがって、自動運転中であることを周囲に知らせるためのランプ（以下、「自動運転表示用ランプ」と呼ぶ）をさらに追加することとなると、その設置場所についての問題が生じる。 Conventionally, various lamps are already installed in the vehicle. Therefore, if a lamp for notifying the surroundings that automatic operation is in progress (hereinafter, referred to as "automatic operation display lamp") is further added, a problem arises regarding the installation location.

本発明はかかる課題に鑑みてなされたものであり、そのある態様の例示的な目的のひとつは、自動運転表示用ランプの設置場所について問題を解消できる技術を提供することにある。 The present invention has been made in view of the above problems, and one of the exemplary purposes of the present invention is to provide a technique capable of solving a problem regarding the installation location of an automatic operation indicator lamp.

上記課題を解決するために、本発明のある態様の発光装置は、４５０ｎｍ〜４８５ｎｍに主波長を有する光を出射する第１発光部と、４９０ｎｍ〜４９８ｎｍに主波長を有する光を出射する第２発光部と、６１０ｎｍ〜６４０ｎｍに主波長を有する光を出射する第３発光部と、各発光部から出射される光の輝度を個別に制御して、各発光部からの光の合成光の色度を調整する制御部と、を備える。 In order to solve the above problems, the light emitting device of one embodiment of the present invention has a first light emitting unit that emits light having a main wavelength in 450 nm to 485 nm and a second light emitting unit that emits light having a main wavelength in 490 nm to 498 nm. The color of the combined light from each light emitting unit by individually controlling the light emitting unit, the third light emitting unit that emits light having a main wavelength in 610 nm to 640 nm, and the brightness of the light emitted from each light emitting unit. It is provided with a control unit for adjusting the degree.

本発明の別の態様は、車両用灯具の発光装置のシリーズである。この車両用灯具の発光装置のシリーズは、第１発光装置と第２発光装置とを含む車両用灯具の発光装置のシリーズであって、第１発光装置および第２発光装置は、複数の有機発光層を含む有機ＥＬパネルと、有機ＥＬパネルから出射される光の色度を調整する制御部と、を備える。第１発光装置および第２発光装置は有機ＥＬパネルが共通している。 Another aspect of the present invention is a series of light emitting devices for vehicle lamps. The series of light emitting devices for vehicle lighting devices is a series of light emitting devices for vehicle lighting devices including a first light emitting device and a second light emitting device, and the first light emitting device and the second light emitting device include a plurality of organic light emitting devices. It includes an organic EL panel including a layer, and a control unit for adjusting the chromaticity of light emitted from the organic EL panel. The organic EL panel is common to the first light emitting device and the second light emitting device.

なお、以上の構成要素の任意の組み合わせや、本発明の構成要素や表現を、方法、装置、システムなどの間で相互に置換したものもまた、本発明の態様として有効である。 It should be noted that any combination of the above components and those in which the components and expressions of the present invention are mutually replaced between methods, devices, systems and the like are also effective as aspects of the present invention.

本発明によれば、自動運転表示用ランプの設置場所について問題を解消できる技術を提供できる。 According to the present invention, it is possible to provide a technique capable of solving a problem regarding the installation location of an automatic operation indicator lamp.

実施の形態に係る発光装置を備える車両用灯具とその周辺を示す概略断面図である。It is schematic cross-sectional view which shows the lamp for vehicle which includes the light emitting device which concerns on embodiment, and its periphery. 図１の有機ＥＬパネルの概略構造を示す断面図である。It is sectional drawing which shows the schematic structure of the organic EL panel of FIG. 図１の車両用灯具を備える灯具システムを示すブロック図である。FIG. 3 is a block diagram showing a lamp system including the vehicle lamp of FIG. 1. 変形例に係る車両用灯具とその周辺を示す概略断面図である。It is schematic cross-sectional view which shows the lamp for vehicle which concerns on the modification, and its periphery. 図５（ａ）は、変形例に係る発光装置の有機ＥＬパネルの概略構造を示す平面図であり、図５（ｂ）は図５（ａ）のＡ−Ａ線断面図である。5 (a) is a plan view showing a schematic structure of an organic EL panel of a light emitting device according to a modified example, and FIG. 5 (b) is a cross-sectional view taken along the line AA of FIG. 5 (a).

以下、本発明を好適な実施の形態をもとに図面を参照しながら説明する。各図面に示される同一または同等の構成要素、部材、処理には、同一の符号を付するものとし、適宜重複した説明は省略する。また、実施の形態は、発明を限定するものではなく例示であって、実施の形態に記述されるすべての特徴やその組み合わせは、必ずしも発明の本質的なものであるとは限らない。 Hereinafter, the present invention will be described with reference to the drawings based on preferred embodiments. The same or equivalent components, members, and processes shown in the drawings shall be designated by the same reference numerals, and redundant description will be omitted as appropriate. Further, the embodiment is not limited to the invention, but is an example, and all the features and combinations thereof described in the embodiment are not necessarily essential to the invention.

（第１の実施の形態）
図１は、実施の形態に係る発光装置１０を備える車両用灯具１００とその周辺を示す概略断面図である。車両用灯具１００は、本実施の形態では、詳しくは後述するが、自動運転表示用ランプとして機能し、手動運転時は、昼間はデイタイムランニングランプとして、夜間はポジションランプとして機能する。(First Embodiment)
FIG. 1 is a schematic cross-sectional view showing a vehicle lamp 100 including the light emitting device 10 according to the embodiment and its surroundings. In the present embodiment, the vehicle lighting tool 100 functions as an automatic driving indicator lamp, and during manual driving, functions as a daytime running lamp during the daytime and as a position lamp at nighttime.

車両用灯具１００は、筐体１０２と、発光装置１０と、を備える。発光装置１０は、有機ＥＬパネル１２を含む。 The vehicle lamp 100 includes a housing 102 and a light emitting device 10. The light emitting device 10 includes an organic EL panel 12.

筐体１０２は、発光装置１０を車体２に取り付けるための取付構造であり、ベース１０４と、透光カバー１０６と、を含む。 The housing 102 has a mounting structure for mounting the light emitting device 10 to the vehicle body 2, and includes a base 104 and a translucent cover 106.

ベース１０４は、車両に当接される取付面１０４ａを有する。取付面１０４ａは、当該取付面１０４ａが当接される車体２の部分２ａに対応する３次元曲面形状を有する。ここで、対応する３次元曲面形状とは、取付面１０４ａを車体の部分に当接させたときに、取付面１０４ａと車体２の部分との間に実質的に隙間が生じないような形状である。なお、ベース１０４は、両面テープなどの接着部材で車体に取り付けられてもよい。 The base 104 has a mounting surface 104a that comes into contact with the vehicle. The mounting surface 104a has a three-dimensional curved surface shape corresponding to the portion 2a of the vehicle body 2 with which the mounting surface 104a is in contact. Here, the corresponding three-dimensional curved surface shape is such that when the mounting surface 104a is brought into contact with the vehicle body portion, there is substantially no gap between the mounting surface 104a and the vehicle body 2 portion. be. The base 104 may be attached to the vehicle body with an adhesive member such as double-sided tape.

ベース１０４は、灯具前方側に開口した凹部１０４ｂを有する。透光カバー１０６は、この凹部１０４ｂを覆うようにベース１０４に取り付けられる。透光カバー１０６は、ベース１０４の凹部１０４ｂと連通する凹部１０６ａを有する。ベース１０４と透光カバー１０６との間には、ベース１０４の凹部１０４ｂと透光カバー１０６の凹部１０６ａで構成される灯室１１０が形成される。なお、ベース１０４および透光カバー１０６の一方だけが、灯室１１０を形成する凹部を有していてもよい。 The base 104 has a recess 104b that opens to the front side of the lamp. The translucent cover 106 is attached to the base 104 so as to cover the recess 104b. The translucent cover 106 has a recess 106a that communicates with the recess 104b of the base 104. Between the base 104 and the translucent cover 106, a light chamber 110 composed of a recess 104b of the base 104 and a recess 106a of the translucent cover 106 is formed. Only one of the base 104 and the translucent cover 106 may have a recess forming the light chamber 110.

透光カバー１０６は、灯室１１０内への紫外線の侵入を抑止するよう構成されている。例えば透光カバー１０６は、紫外線吸収性材料を含有していてもよい。これにより、有機ＥＬパネル１２の紫外線による劣化を抑止できる。 The translucent cover 106 is configured to prevent ultraviolet rays from entering the light chamber 110. For example, the translucent cover 106 may contain an ultraviolet absorbing material. As a result, deterioration of the organic EL panel 12 due to ultraviolet rays can be suppressed.

有機ＥＬパネル１２は、灯室１１０内に収容される。有機ＥＬパネル１２は、好ましくは図示のように、その出射面１２ａと透光カバー１０６の内面１０６ｂとの間に隙間が生じないように、当該内面１０６ｂに固定される。これにより、有機ＥＬパネル１２の出射面１２ａと透光カバー１０６の内面１０６ｂとの間に水分が入るのが抑止され、透光カバー１０６の内面１０６ｂのうち、有機ＥＬパネル１２の出射面１２ａに対向する内面部分が曇ることを抑止できる。なお、有機ＥＬパネル１２は、透明の接着部材により、例えば高透明両面テープや透明シリコンシートにより、透光カバー１０６に接着固定されればよい。 The organic EL panel 12 is housed in the light room 110. The organic EL panel 12 is preferably fixed to the inner surface 106b so that a gap is not formed between the exit surface 12a and the inner surface 106b of the translucent cover 106, as shown in the drawing. As a result, moisture is prevented from entering between the exit surface 12a of the organic EL panel 12 and the inner surface 106b of the translucent cover 106, and of the inner surface 106b of the translucent cover 106, the exit surface 12a of the organic EL panel 12. It is possible to prevent the facing inner surface from becoming cloudy. The organic EL panel 12 may be adhesively fixed to the translucent cover 106 by a transparent adhesive member, for example, a highly transparent double-sided tape or a transparent silicon sheet.

有機ＥＬパネル１２は、可撓性を有する板状の有機ＥＬパネル、例えばいわゆる２．５次元曲面ＯＬＥＤ（Organic Light Emitting Diode）パネルであってもよい。２．５次元曲面ＯＬＥＤパネルは、発光面内の発光均一性が良好であり、紙のように随意に曲げられるという優れた特徴をもつ。この場合、透光カバー１０６の内面１０６ｂは、２．５次元形状であってもよい。 The organic EL panel 12 may be a flexible plate-shaped organic EL panel, for example, a so-called 2.5-dimensional curved surface OLED (Organic Light Emitting Diode) panel. The 2.5-dimensional curved OLED panel has excellent light emission uniformity in the light emitting surface, and has an excellent feature that it can be bent arbitrarily like paper. In this case, the inner surface 106b of the translucent cover 106 may have a 2.5-dimensional shape.

図２は、有機ＥＬパネル１２の概略構造を示す断面図である。有機ＥＬパネル１２は、有機ＥＬパネル１２は、透明なフレキシブル基板１６上に、第１積層体１８、絶縁層２０、第２積層体２２、絶縁層２４、第３積層体２６がこの順で積層され、さらにそれらを封止部材２８で封止することにより構成されている。フレキシブル基板１６は、例えば、フレキシブルガラス基板、または、可撓性をもつ樹脂基板である。 FIG. 2 is a cross-sectional view showing a schematic structure of the organic EL panel 12. In the organic EL panel 12, the organic EL panel 12 is such that the first laminated body 18, the insulating layer 20, the second laminated body 22, the insulating layer 24, and the third laminated body 26 are laminated in this order on the transparent flexible substrate 16. It is configured by further sealing them with a sealing member 28. The flexible substrate 16 is, for example, a flexible glass substrate or a flexible resin substrate.

第１積層体１８は、第１陽極３０と、第１有機ＥＬ発光層３２と、第１陰極３４と、を含む。
第２積層体２２は、第２陽極４０と、第２有機ＥＬ発光層４２と、第２陰極４４と、を含む。
第３積層体２６は、第３陽極５０と、第３有機ＥＬ発光層５２と、第３陰極５４と、を含む。
なお各積層体において、陽極と陰極の配置は逆であってもよい。The first laminated body 18 includes a first anode 30, a first organic EL light emitting layer 32, and a first cathode 34.
The second laminated body 22 includes a second anode 40, a second organic EL light emitting layer 42, and a second cathode 44.
The third laminated body 26 includes a third anode 50, a third organic EL light emitting layer 52, and a third cathode 54.
In each laminated body, the arrangement of the anode and the cathode may be reversed.

第１陽極３０、第１陰極３４、第２陽極４０、第２陰極４４および第３陽極５０は、ＩＴＯ等からなる透明電極であり、第３陰極５４は金属電極、例えば第３有機ＥＬ発光層５２へのアルミニウムの蒸着によって得られるアルミニウム電極である。なお、第３陽極５０と第３陰極５４の配置が逆の場合は、第３陰極５４が透明電極であり、第３陽極５０が金属電極である。 The first anode 30, the first cathode 34, the second anode 40, the second cathode 44 and the third anode 50 are transparent electrodes made of ITO or the like, and the third cathode 54 is a metal electrode, for example, a third organic EL light emitting layer. It is an aluminum electrode obtained by vaporizing aluminum on 52. When the arrangement of the third anode 50 and the third cathode 54 is reversed, the third cathode 54 is a transparent electrode and the third anode 50 is a metal electrode.

第１積層体１８の第１有機ＥＬ発光層３２は、青色の光、具体的には４５０ｎｍ〜４８５ｎｍに主波長を有する光を発光可能に構成されている。第１陽極３０および第１陰極３４を用いて第１有機ＥＬ発光層３２に電圧を印加すると、第１有機ＥＬ発光層３２は青色の光を発する。 The first organic EL light emitting layer 32 of the first laminated body 18 is configured to be capable of emitting blue light, specifically light having a main wavelength in the range of 450 nm to 485 nm. When a voltage is applied to the first organic EL light emitting layer 32 using the first anode 30 and the first cathode 34, the first organic EL light emitting layer 32 emits blue light.

第２積層体２２の第２有機ＥＬ発光層４２は、ターコイズ色、具体的には４９０ｎｍ〜４９８ｎｍに主波長を有する光を発光可能に構成されている。第２陽極４０および第２陰極４４を用いて第２有機ＥＬ発光層４２に電圧を印加すると、第２有機ＥＬ発光層４２はターコイズ色の光を発する。 The second organic EL light emitting layer 42 of the second laminated body 22 is configured to be capable of emitting light having a turquoise color, specifically, a main wavelength of 490 nm to 498 nm. When a voltage is applied to the second organic EL light emitting layer 42 using the second anode 40 and the second cathode 44, the second organic EL light emitting layer 42 emits turquoise light.

第３積層体２６の第３有機ＥＬ発光層５２は、赤色の光、具体的には６１０ｎｍ〜６４０ｎｍに主波長を有する光を発光可能に構成されている。第３陽極５０および第３陰極５４を用いて第３有機ＥＬ発光層５２に電圧を印加すると、第３有機ＥＬ発光層５２は赤色の光を発する。 The third organic EL light emitting layer 52 of the third laminated body 26 is configured to be capable of emitting red light, specifically light having a main wavelength in the range of 610 nm to 640 nm. When a voltage is applied to the third organic EL light emitting layer 52 using the third anode 50 and the third cathode 54, the third organic EL light emitting layer 52 emits red light.

なお、第１有機ＥＬ発光層３２、第２有機ＥＬ発光層４２、第３有機ＥＬ発光層５２がそれぞれ、青色、ターコイズ色、赤色の光を発光可能に構成される場合について説明したが、これには限定されず、３つの有機ＥＬ発光層のうちのいずれかが青色、いずれかがターコイズ色、いずれかが赤色の光を発光可能に構成されればよい。 The case where the first organic EL light emitting layer 32, the second organic EL light emitting layer 42, and the third organic EL light emitting layer 52 are configured to emit blue, turquoise, and red light, respectively, has been described. It suffices that any one of the three organic EL light emitting layers can emit blue light, one of which is turquoise, and one of which is red.

フレキシブル基板１６の出射面１６ａ（すなわち有機ＥＬパネル１２の出射面１２ａ）からは、各有機ＥＬ発光層が発した光が合成された光であって、単一色として認識される光が出射される。フレキシブル基板１６から出射される光は、各有機ＥＬ発光層が発した光の輝度に応じた色を呈する、言い換えると各有機ＥＬ発光層に印加された電圧に応じた色を呈する。 From the exit surface 16a of the flexible substrate 16 (that is, the exit surface 12a of the organic EL panel 12), the light emitted by each organic EL light emitting layer is combined and the light recognized as a single color is emitted. .. The light emitted from the flexible substrate 16 exhibits a color corresponding to the brightness of the light emitted by each organic EL light emitting layer, in other words, exhibits a color corresponding to the voltage applied to each organic EL light emitting layer.

図３は、図１の車両用灯具１００を備える灯具システム２００を示すブロック図である。灯具システム２００は、バッテリ２０２と、照度センサ２０４と、車両ＥＣＵ２０６と、上述の車両用灯具１００と、を備える。 FIG. 3 is a block diagram showing a lamp system 200 including the vehicle lamp 100 of FIG. The lamp system 200 includes a battery 202, an illuminance sensor 204, a vehicle ECU 206, and the vehicle lamp 100 described above.

照度センサ２０４は、車両の周囲の照度を検出する。 The illuminance sensor 204 detects the illuminance around the vehicle.

車両ＥＣＵ２０６は、車両用灯具１００を統合的に制御する。車両ＥＣＵ２０６から車両用灯具１００には、ランプのオン、オフの点消灯指令Ｓ１、車両が自動運転中であるか手動運転中であるかを示す運転モード情報Ｓ２、車両の周囲の照度を示す照度情報Ｓ３などが送信される。 The vehicle ECU 206 controls the vehicle lamp 100 in an integrated manner. From the vehicle ECU 206 to the vehicle lighting tool 100, the on / off on / off command S1, the operation mode information S2 indicating whether the vehicle is in automatic driving or manual driving, and the illuminance indicating the illuminance around the vehicle Information S3 and the like are transmitted.

車両用灯具１００は、スイッチ１２０と、制御部１２２と、をさらに備える。また、発光装置１０は、点灯回路１２４をさらに備える。スイッチ１２０、制御部１２２および点灯回路１２４はそれぞれ、灯室１１０内に設けられても、灯室１１０の外に設けられてもよい。 The vehicle lamp 100 further includes a switch 120 and a control unit 122. Further, the light emitting device 10 further includes a lighting circuit 124. The switch 120, the control unit 122, and the lighting circuit 124 may be provided inside the lighting chamber 110 or outside the lighting chamber 110, respectively.

スイッチ１２０は、バッテリ２０２から点灯回路１２４への電源供給経路上に設けられ、制御部１２２からの制御信号Ｓ４に応じてオン、オフが制御される。スイッチ１２０は、発光装置１０の点灯状態ではオンとされる。 The switch 120 is provided on the power supply path from the battery 202 to the lighting circuit 124, and is controlled to be turned on and off according to the control signal S4 from the control unit 122. The switch 120 is turned on when the light emitting device 10 is lit.

制御部１２２は、車両ＥＣＵ２０６からの点消灯指令Ｓ１に基づいて、スイッチ１２０への制御信号Ｓ４を生成する。 The control unit 122 generates a control signal S4 to the switch 120 based on the turn-off command S1 from the vehicle ECU 206.

また制御部１２２は、車両ＥＣＵ２０６からの運転モード情報Ｓ２および照度情報Ｓ３に基づいて、各積層体の各有機ＥＬ発光層から出射される光の輝度を個別に制御して、各有機ＥＬ発光層からの光の合成光の色度を調整する。具体的には制御部１２２は、運転モード情報Ｓ２および照度情報Ｓ３に基づいて調光信号Ｓ５を生成する。点灯回路１２４は、この調光信号Ｓ５に応じた駆動電圧を各積層体に供給する。 Further, the control unit 122 individually controls the brightness of the light emitted from each organic EL light emitting layer of each laminated body based on the operation mode information S2 and the illuminance information S3 from the vehicle ECU 206, and each organic EL light emitting layer. Adjust the chromaticity of the combined light from. Specifically, the control unit 122 generates a dimming signal S5 based on the operation mode information S2 and the illuminance information S3. The lighting circuit 124 supplies each laminate with a drive voltage corresponding to the dimming signal S5.

制御部１２２は、運転モード情報Ｓ２が車両が自動運転中であることを示す場合、照度情報Ｓ３が示す照度によらず、すなわち車両の周囲が明るい（例えば昼間である）か暗い（例えば夜間である）かによらず、自動運転中であることを周囲に知らせるためのターコイズ色の光を発光装置１０に出射させる調光信号Ｓ５を生成する。具体的には制御部１２２は、第２積層体２２にのみ駆動電圧を供給する調光信号Ｓ５を生成する。 When the driving mode information S2 indicates that the vehicle is in automatic driving, the control unit 122 does not depend on the illuminance indicated by the illuminance information S3, that is, the surroundings of the vehicle are bright (for example, in the daytime) or dark (for example, at night). Regardless of whether or not there is), a dimming signal S5 is generated to emit turquoise light to the light emitting device 10 to notify the surroundings that the automatic operation is in progress. Specifically, the control unit 122 generates a dimming signal S5 that supplies a drive voltage only to the second laminated body 22.

また制御部１２２は、運転モード情報Ｓ２が車両が手動運転中であることを示し、かつ、照度情報Ｓ３が示す照度が所定の閾値以上である、すなわち例えば昼間で車両の周囲が明るい場合、デイタイムランニングランプとしての白色の合成光を発光装置１０に出射させる調光信号Ｓ５を生成する。 Further, the control unit 122 indicates that the operation mode information S2 indicates that the vehicle is being manually driven, and the illuminance indicated by the illuminance information S3 is equal to or higher than a predetermined threshold value, that is, for example, when the surroundings of the vehicle are bright in the daytime, the day A dimming signal S5 is generated to emit white synthetic light as a time running lamp to the light emitting device 10.

また制御部１２２は、運転モード情報Ｓ２が車両が手動運転中であることを示し、かつ、照度情報Ｓ３が示す照度が所定の閾値未満である、すなわち例えば夜間やトンネル内で車両の周囲が暗い場合、ポジションランプとしての白色の合成光を発光装置１０に出射させる調光信号Ｓ５を生成する。 Further, the control unit 122 indicates that the driving mode information S2 indicates that the vehicle is being manually driven, and the illuminance indicated by the illuminance information S3 is less than a predetermined threshold value, that is, the surroundings of the vehicle are dark, for example, at night or in a tunnel. In this case, a dimming signal S5 is generated to emit white synthetic light as a position lamp to the light emitting device 10.

点灯回路１２４には、スイッチ１２０を介してバッテリ２０２からのバッテリ電圧が供給される。点灯回路１２４は、制御部１２２が生成した調光信号Ｓ５に応じてバッテリ電圧を昇圧もしくは降圧し、発光装置１０の各積層体に個別の駆動電圧を供給する。 The battery voltage from the battery 202 is supplied to the lighting circuit 124 via the switch 120. The lighting circuit 124 boosts or lowers the battery voltage according to the dimming signal S5 generated by the control unit 122, and supplies individual drive voltages to each layer of the light emitting device 10.

以上説明した本実施の形態によれば、各積層体からの光を任意に合成することにより、ターコイズ色やその他の様々な色の光を生成できる。これにより、１つの発光装置１０を、自動運転表示用ランプとしても、デイタイムランニングランプやポジションランプとしても使用できる。つまり、１つの発光装置１０を、自動運転表示用ランプおよび従来の標識灯として共用できる。そのため、自動運転表示用ランプの設置場所について問題が生じるのを避けることができる。また、各ランプに専用の発光装置を設ける場合と比べて、コストを低減できる。 According to the present embodiment described above, light of various colors such as turquoise can be generated by arbitrarily synthesizing the light from each laminated body. As a result, one light emitting device 10 can be used as an automatic operation display lamp, a daytime running lamp, or a position lamp. That is, one light emitting device 10 can be shared as an automatic operation display lamp and a conventional indicator lamp. Therefore, it is possible to avoid a problem regarding the installation location of the automatic operation display lamp. In addition, the cost can be reduced as compared with the case where a dedicated light emitting device is provided for each lamp.

また、本実施の形態によれば、筐体１０２を介して発光装置１０の有機ＥＬパネル１２を取り付けることで、３次元曲面形状を有する車体２に、そうではない（例えば２．５次元形状の）有機ＥＬパネル１２を取り付けることができる。また、透光カバー１０６で有機ＥＬパネル１２をカバーすることにより、紫外線による有機ＥＬパネル１２の劣化を抑止できる。 Further, according to the present embodiment, by attaching the organic EL panel 12 of the light emitting device 10 via the housing 102, the vehicle body 2 having the three-dimensional curved surface shape is not so (for example, the 2.5-dimensional shape). ) The organic EL panel 12 can be attached. Further, by covering the organic EL panel 12 with the translucent cover 106, deterioration of the organic EL panel 12 due to ultraviolet rays can be suppressed.

続いて、第１の実施の形態に関連する変形例を説明する。 Subsequently, a modification related to the first embodiment will be described.

（第１の実施の形態の第１の変形例）
図４は、変形例に係る車両用灯具３００とその周辺を示す概略断面図である。図４は図１に対応する。車両用灯具３００は、筐体３０２と、発光装置１０と、を備える。(First modification of the first embodiment)
FIG. 4 is a schematic cross-sectional view showing the vehicle lamp 300 and its surroundings according to the modified example. FIG. 4 corresponds to FIG. The vehicle lamp 300 includes a housing 302 and a light emitting device 10.

筐体３０２は、外周壁部３０４と底部３０６とが一体に形成された有底カップ形状を有し、その底部３０６を灯具前方にして車体２に対して取り付けられる。少なくとも底部３０６は、透光性を有する材料により形成される。筐体３０２は、第１の実施の形態でいうところのベースと透光カバーとが一体となった部材ともいえる。 The housing 302 has a bottomed cup shape in which the outer peripheral wall portion 304 and the bottom portion 306 are integrally formed, and is attached to the vehicle body 2 with the bottom portion 306 facing the front of the lamp. At least the bottom 306 is formed of a translucent material. The housing 302 can be said to be a member in which the base and the translucent cover are integrated as in the first embodiment.

外周壁部３０４は、底部３０６とは反対側に、取付面３０４ａを有する。取付面３０４ａは、当該取付面３０４ａが当接される車体２の部分２ａに対応する３次元曲面形状を有する。また、底部３０６は、第１の実施の形態の透光カバー１０６と同様に、灯室３１０内への紫外線の侵入を抑止するよう構成されている。 The outer peripheral wall portion 304 has a mounting surface 304a on the side opposite to the bottom portion 306. The mounting surface 304a has a three-dimensional curved surface shape corresponding to the portion 2a of the vehicle body 2 with which the mounting surface 304a is in contact. Further, the bottom portion 306 is configured to suppress the intrusion of ultraviolet rays into the lighting chamber 310, similarly to the translucent cover 106 of the first embodiment.

発光装置１０の有機ＥＬパネル１２は、筐体３０２と車体２との間に形成された灯室３１０に収容される。有機ＥＬパネル１２は、好ましくは図示のように、その出射面１２ａと底部３０６の内面３０６ｂとの間に隙間が生じないように、当該内面３０６ｂに固定される。これにより、有機ＥＬパネル１２の出射面１２ａと底部３０６の内面３０６ｂとの間に水分が入るのが抑止され、底部３０６の内面３０６ｂのうち、有機ＥＬパネル１２の出射面１２ａに対向する内面部分が曇ることを抑止できる。なお、有機ＥＬパネル１２は、透明の接着部材により、例えば高透明両面テープや透明シリコンシートにより、底部３０６に接着固定されればよい。 The organic EL panel 12 of the light emitting device 10 is housed in a light chamber 310 formed between the housing 302 and the vehicle body 2. The organic EL panel 12 is preferably fixed to the inner surface 306b so that a gap is not formed between the exit surface 12a and the inner surface 306b of the bottom portion 306, as shown in the drawing. As a result, moisture is prevented from entering between the exit surface 12a of the organic EL panel 12 and the inner surface 306b of the bottom 306, and the inner surface portion of the inner surface 306b of the bottom 306 facing the exit surface 12a of the organic EL panel 12 Can be prevented from becoming cloudy. The organic EL panel 12 may be adhesively fixed to the bottom portion 306 by a transparent adhesive member, for example, a highly transparent double-sided tape or a transparent silicon sheet.

本変形例によれば、第１の実施の形態と同様の効果を奏することができる。また、本変形例によれば、筐体１０２が単一の部品で構成されるため、部品点数を減らすことができる。 According to this modification, the same effect as that of the first embodiment can be obtained. Further, according to this modification, since the housing 102 is composed of a single component, the number of components can be reduced.

（第１の実施の形態の第２の変形例）
第１の実施の形態では、第１積層体１８、第２積層体２２および第３積層体２６が積層される場合について説明したが、これには限定されず、発光装置１０が複数の第１積層体１８、複数の第２積層体２２および複数の第３積層体２６を備え、それらが積層されずに配置されてもよい。(Second variant of the first embodiment)
In the first embodiment, the case where the first laminated body 18, the second laminated body 22, and the third laminated body 26 are laminated has been described, but the present invention is not limited to this, and the first light emitting device 10 is a plurality of first. The laminated body 18, the plurality of second laminated bodies 22, and the plurality of third laminated bodies 26 may be provided, and they may be arranged without being laminated.

図５（ａ）は、変形例に係る発光装置１０の有機ＥＬパネル１２の概略構造を示す平面図であり、図５（ｂ）は、図５（ａ）のＡ−Ａ線断面図である。本変形例では、複数の第１積層体１８、複数の第２積層体２２および複数の第３積層体２６は、マトリクス状に配置されている。 5 (a) is a plan view showing a schematic structure of the organic EL panel 12 of the light emitting device 10 according to the modified example, and FIG. 5 (b) is a cross-sectional view taken along the line AA of FIG. 5 (a). .. In this modification, the plurality of first laminated bodies 18, the plurality of second laminated bodies 22, and the plurality of third laminated bodies 26 are arranged in a matrix.

第１の実施の形態と同様に、フレキシブル基板１６の出射面１６ａ（すなわち有機ＥＬパネル１２の出射面１２ａ）からは、各有機ＥＬ発光層が発した光が合成された光であって、単一色として認識される光が出射される。 Similar to the first embodiment, the light emitted from each organic EL light emitting layer is synthesized from the emission surface 16a of the flexible substrate 16 (that is, the emission surface 12a of the organic EL panel 12), and is simply a combination of light. Light that is recognized as one color is emitted.

本変形例によれば、第１の実施の形態と同様の効果を奏することができる。 According to this modification, the same effect as that of the first embodiment can be obtained.

（第１の実施の形態の第３の変形例）
第１の実施の形態および上述の変形例では、発光装置１０が有機ＥＬパネルを備える場合、すなわち発光装置１０の各発光部が有機ＥＬ発光層である場合について説明したが、これには限定されず、発光装置１０は、青色、ターコイズ色、赤色の光をそれぞれ出射する任意の発光部、例えばＬＥＤ（発光ダイオード）やＬＤ（レーザダイオード）を備えてもよい。(Third variant of the first embodiment)
In the first embodiment and the above-described modification, the case where the light emitting device 10 includes an organic EL panel, that is, the case where each light emitting portion of the light emitting device 10 is an organic EL light emitting layer has been described, but the present invention is limited to this. However, the light emitting device 10 may include an arbitrary light emitting unit that emits blue, turquoise, and red light, for example, an LED (light emitting diode) or an LD (laser diode).

（第１の実施の形態の第４の変形例）
第１の実施の形態および上述の変形例では、発光装置１０が、自動運転表示用ランプと、デイタイムランニングランプおよびポジションランプとして兼用される場合について説明したが、これには限定されず、発光装置１０は、自動運転表示用ランプと、自動運転表示用ランプとは別の少なくとも１つの任意のランプとして兼用されればよい。任意のランプは、例えば、デイタイムランニングランプ、ポジションランプ、ターンシグナルランプ、テールランプ等の標識灯や、ヘッドランプやブレーキランプであってもよい。(Fourth variant of the first embodiment)
In the first embodiment and the above-described modification, the case where the light emitting device 10 is also used as the automatic operation display lamp, the daytime running lamp, and the position lamp has been described, but the present invention is not limited to this, and the light emitting device 10 emits light. The device 10 may be used as both the automatic operation display lamp and at least one optional lamp other than the automatic operation display lamp. The arbitrary lamp may be, for example, a indicator lamp such as a daytime running lamp, a position lamp, a turn signal lamp, or a tail lamp, or a head lamp or a brake lamp.

（第２の実施の形態）
車両用灯具の発光装置のシリーズ（製品群）は、第１〜第Ｎ（Ｎは２以上の整数）発光装置を備える。各発光装置は、同一の車両用灯具内に設けられても、そうでなくてもよい。(Second Embodiment)
The series (product group) of light emitting devices for vehicle lamps includes first to Nth (N is an integer of 2 or more) light emitting devices. Each light emitting device may or may not be provided in the same vehicle lamp.

第ｉ（１≦ｉ≦Ｎ）発光装置は、第ｉ有機ＥＬパネルと、第ｉ点灯回路と、を備える。 The i-th (1 ≦ i ≦ N) light emitting device includes an i-th organic EL panel and an i-th lighting circuit.

第１有機ＥＬパネル〜第Ｎ有機ＥＬパネルは、第１の実施の形態の有機ＥＬパネル１２と同様に構成される。また、第１有機ＥＬパネル〜第Ｎ有機ＥＬパネルは、共通の（すなわち形状、寸法、構成部品の構成等が設計上同じ）部材として形成される。 The first organic EL panel to the Nth organic EL panel are configured in the same manner as the organic EL panel 12 of the first embodiment. Further, the first organic EL panel to the Nth organic EL panel are formed as common members (that is, the shape, dimensions, configuration of components, etc. are the same in design).

第１発光装置の第１点灯回路は、当該第１発光装置を自動運転表示用ランプとして機能させるべく、４９０ｎｍ〜４９８ｎｍに主波長を有する光を出射するよう第１有機ＥＬパネルを制御するように構成される。 The first lighting circuit of the first light emitting device controls the first organic EL panel so as to emit light having a main wavelength in 490 nm to 498 nm in order to make the first light emitting device function as an automatic operation display lamp. It is composed.

第２発光装置〜第Ｎ発光装置の点灯回路はそれぞれ、第２発光装置〜第Ｎ発光装置を、自動運転表示用ランプとは別のランプ（例えばデイタイムランニングランプ、ポジションランプ、ターンシグナルランプ、テールランプ等）であって、互いに異なるランプとして機能させるべく、第１発光装置とは異なる波長域に主波長を有する光を出射するよう第２有機ＥＬパネル〜第Ｎ有機ＥＬパネルを制御するように構成される。 The lighting circuits of the second light emitting device to the Nth light emitting device are different lamps (for example, daytime running lamp, position lamp, turn signal lamp, etc.) from the automatic operation display lamp, respectively. (Tail lamps, etc.), so that the second organic EL panel to the Nth organic EL panel are controlled so as to emit light having a main wavelength in a wavelength range different from that of the first light emitting device in order to function as different lamps. It is composed.

本実施の形態によれば、シリーズの複数の発光装置の間で有機ＥＬパネルを共通化でき、シリーズ全体で管理すべき部品点数を抑えられ、シリーズ全体での製造コストおよび管理コストを軽減できる。 According to this embodiment, the organic EL panel can be shared among a plurality of light emitting devices of the series, the number of parts to be managed in the entire series can be suppressed, and the manufacturing cost and the management cost in the entire series can be reduced.

続いて、第２の実施の形態に関連する変形例を説明する。
第２の実施の形態では、第１有機ＥＬパネル〜第Ｎ有機ＥＬパネルが第１の実施の形態の有機ＥＬパネル１２と同様に構成される場合について説明したが、これには限定されず、第１積層体、第２積層体、第３積層体が、それぞれ青色、緑色、赤色の光を出射可能に構成されてもよい。Subsequently, a modification related to the second embodiment will be described.
In the second embodiment, the case where the first organic EL panel to the Nth organic EL panel are configured in the same manner as the organic EL panel 12 of the first embodiment has been described, but the present invention is not limited to this. The first laminated body, the second laminated body, and the third laminated body may be configured to be capable of emitting blue, green, and red light, respectively.

以上、本開示を実施の形態をもとに説明した。上述した実施の形態および変形例の任意の組み合わせもまた本発明の実施の形態として有用である。組み合わせによって生じる新たな実施の形態は、組み合わされる実施の形態および変形例それぞれの効果をあわせもつ。また、請求項に記載の各構成要件が果たすべき機能は、実施の形態および変形例において示された各構成要素の単体もしくはそれらの連係によって実現されることも当業者には理解されるところである。 The present disclosure has been described above based on the embodiment. Any combination of the embodiments and modifications described above is also useful as an embodiment of the present invention. The new embodiments resulting from the combination have the effects of the combined embodiments and variants. It is also understood by those skilled in the art that the functions to be fulfilled by each of the constituent elements described in the claims are realized by a single component or a combination thereof shown in the embodiments and modifications. ..

本発明は、発光装置および車両用灯具の発光装置シリーズに利用できる。 The present invention can be used in a light emitting device series of light emitting devices and vehicle lamps.

１０ 発光装置、 １２ 有機ＥＬパネル、 １８ 第１積層体、 ２２ 第２積層体、 ２６ 第３積層体、 １００ 車両用灯具、 １２４ 点灯回路。 10 light emitting device, 12 organic EL panel, 18 1st laminated body, 22 2nd laminated body, 26 3rd laminated body, 100 vehicle lighting equipment, 124 lighting circuit.

Claims (5)

４５０ｎｍ〜４８５ｎｍに主波長を有する光を出射する第１発光部と、
４９０ｎｍ〜４９８ｎｍに主波長を有する光を出射する第２発光部と、
６１０ｎｍ〜６４０ｎｍに主波長を有する光を出射する第３発光部と、
各発光部から出射される光の輝度を個別に制御して、各発光部からの光の合成光の色度を調整する点灯回路と、を備えることを特徴とする発光装置。A first light emitting unit that emits light having a main wavelength in the range of 450 nm to 485 nm,
A second light emitting unit that emits light having a main wavelength in the range of 490 nm to 498 nm,
A third light emitting unit that emits light having a main wavelength in the range of 610 nm to 640 nm,
A light emitting device including a lighting circuit that individually controls the brightness of light emitted from each light emitting unit and adjusts the chromaticity of the combined light of the light emitted from each light emitting unit. 前記点灯回路は、本発光装置が搭載された車両が自動運転中である場合、前記合成光の主波長が４９０ｎｍ〜４９８ｎｍとなるように各発光部から出射される光の輝度を制御することを特徴とする請求項１に記載の発光装置。 The lighting circuit controls the brightness of the light emitted from each light emitting unit so that the main wavelength of the combined light is 490 nm to 498 nm when the vehicle equipped with the light emitting device is in automatic operation. The light emitting device according to claim 1. 各発光部は、有機ＥＬ発光層であり、有機ＥＬパネルを構成することを特徴とする請求項１に記載の発光装置。 The light emitting device according to claim 1, wherein each light emitting unit is an organic EL light emitting layer and constitutes an organic EL panel. 第１発光装置と第２発光装置とを含む車両用灯具の発光装置のシリーズであって、
前記第１発光装置および前記第２発光装置は、複数の有機発光層を含む有機ＥＬパネルと、前記有機ＥＬパネルから出射される光の色度を調整する点灯回路と、を備え、
前記第１発光装置および前記第２発光装置は前記有機ＥＬパネルが共通していることを特徴とする車両用灯具の発光装置のシリーズ。A series of light emitting devices for vehicle lamps including a first light emitting device and a second light emitting device.
The first light emitting device and the second light emitting device include an organic EL panel including a plurality of organic light emitting layers, and a lighting circuit for adjusting the chromaticity of light emitted from the organic EL panel.
A series of light emitting devices for vehicle lamps, wherein the first light emitting device and the second light emitting device have the same organic EL panel. 前記点灯回路は、前記第１発光装置では、４９０ｎｍ〜４９８ｎｍに主波長を有する光を出射するように当該第１発光装置の前記有機ＥＬパネルを制御し、前記第２発光装置では、前記第１発光装置とは異なる波長域に主波長を有する光を出射するように当該第２発光装置の前記有機ＥＬパネルを制御することを特徴とする請求項４に記載の車両用灯具の発光装置のシリーズ。 The lighting circuit controls the organic EL panel of the first light emitting device so as to emit light having a main wavelength in the range of 490 nm to 498 nm in the first light emitting device, and the first light emitting device in the second light emitting device. The series of light emitting devices for vehicle lighting equipment according to claim 4, wherein the organic EL panel of the second light emitting device is controlled so as to emit light having a main wavelength in a wavelength range different from that of the light emitting device. ..
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