JP4433435B2 - Surface light source device - Google Patents

Surface light source device Download PDF

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Publication number
JP4433435B2
JP4433435B2 JP2000131929A JP2000131929A JP4433435B2 JP 4433435 B2 JP4433435 B2 JP 4433435B2 JP 2000131929 A JP2000131929 A JP 2000131929A JP 2000131929 A JP2000131929 A JP 2000131929A JP 4433435 B2 JP4433435 B2 JP 4433435B2
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light
light emitting
mounting substrate
source device
emitting member
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JP2001312919A (en
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正樹 古屋
純司 宮下
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Citizen Electronics Co Ltd
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Citizen Electronics Co Ltd
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Description

【０００１】
【発明の属する技術分野】
本発明は、液晶表示パネル等受動的表示装置のバックライトなどに用いる面状光源装置に関する。
【０００２】
【従来の技術】
従来の面状光源装置においては、ＬＥＤ発光素子のような発光部材から発光される光を導光部材によって面状の発光面に導くことにより液晶表示パネル等の受動的表示装置を照明するように構成されており、前記発光部材の発光面は前記導光部材の入光部に対向させて配設してる。
【０００３】
図６は、本発明に係る第６実施例を示し、（ａ）は正面から見た状態を示す正面図、（ｂ）は（ａ）におけるＦＦ線断面の状態を示す断面図である。図６において、枠体５０１には発光部材5０３と導光部材５０４とが取り付けられている。導光部材５０４には、入光面５０４ａと照射面５０４ｂとが形成され、発光部材５０３が発光する光を入光面５０４ａから照射面５０４ｂに導くように構成されている。発光部材５０３は実装基板５０２に固着され、実装基板５０２は２個の取付ねじ５０２ａによって枠体５０１に、発光面５０３ａが導光部材５０４の入光面５０４ａに対向して取り付けられている。
【０００４】
【発明が解決しようとする課題】
従来の面状光源装置は、上述のように、枠体５０１には、導光板５０４および実装基板５０２が位置決めされてされて取り付けられており、実装基板５０２には発光部材５０３が固着されている。実装基板５０２には、平坦な発光面５０３ａを有する発光部材５０３が固着されている。導光板５０４には、半円筒状に形成された入光面５０４ａおよび入光面５０４ａに対して直行する照射面５０４ｂが形成されている。発光部材５０３の発光面５０３ａが平坦であり、導光部材５０４の入光面５０４ａが半円筒状に形成されているので、発光面５０３ａと入光部５０４ａとの間には、比較的大きな隙間ｄができることになる。従って、発光部材５０３の発光面５０３ａから発光された光Ｌ１は、その一部が導光部材５０４の入光部５０４ａの表面で光Ｌ２として反射し光伝導効率を低下させていた。また、発光部材５０３の発光面５０３ａから発光され、入光部５０４ａから導光板５０４の内部にはいった光Ｌ１は、入光部５０４ａに対向する端面から反射されることなく光Ｌ３として透過してしまうので、入光部５０４ａの両脇には光Ｌ１が届かず、照射面５０４ｂにはダークゾーン５０４ｃができてしまい、照射面５０４ｂの全面が均一な明るさにならないという欠点があった。
【０００５】
本発明の目的は、部品構成および組み立て工程を簡単にして光伝導効率が高いと共に、照射面の全面が均一な明るさで照明することができる面状光源装置を提供しようとするものである。
【０００６】
【課題を解決するための手段】
枠体と、該枠体に支承された実装基板と、該実装基板に固着された発光部材と、前記枠体に支承され前記発光部材が発光する光を入光するための入光部と該入光部からはいった光により他の物体を照明するための照明面とが形成されている導光部材とを有する面状光源装置において、前記発光部材の発光面を前記導光部材の入光部に弾性的に密着させるための発光部材押圧部材を有し、前記実装基板は、前記発光面を中心として隔てられた複数点において前記枠体により支持され、前記発光部材押圧部材により前記発光部材の発光面を前記導光部材の入光部に密着させることを特徴とするものである。
また、枠体と、該枠体に支承された実装基板と、該実装基板に固着された発光部材と、前記枠体に支承され前記発光部材が発光する光を入光するための入光部と該入光部からはいった光により他の物体を照明するための照明面とが形成されている導光部材とを有する面状光源装置において、前記発光部材の発光面を前記導光部材の入光部に弾性的に密着させるための発光部材押圧部材を前記実装基板により構成し、前記実装基板は、前記発光面を中心として隔てられた複数点において前記枠体の支持部により支持され、前記実装基板により前記発光部材の発光面を前記導光部材の入光部に密着させることを特徴とするものである。
【０００７】
また、前記導光部材の入光部に対向する端面には、前記入光部からはいった光を反射するための反射拡散板が固着されていることを特徴とするものである。
【０００９】
また、前記発光部材押圧部材は、前記発光部材を支承する発光部材実装基板により構成されていることを特徴とするものである。
【００１０】
また、前記発光部材押圧部材は、前記発光面を中心として隔てられた複数点において前記枠体の支持部により支持されていることを特徴とするものである。
【００１１】
前記実装基板は、前記発光面を中心として隔てられた複数点において前記枠体に螺止されている圧接ねじにより支持されていることを特徴とするものである。
【００１２】
また、前記枠体の支持部は突起状に形成されていることを特徴とするものである。
【００１４】
また、前記発光部材押圧部材が圧接線ばねであることを特徴とするものである。
【００１５】
また、前記発光部材押圧部材が圧接ゴムであることを特徴とするものである。
【発明の実施の形態】
以下発明の実施の形態を実施例に基づき図面を参照して説明する。
図１は、本発明に係る第１実施例を示し、（ａ）は正面から見た状態を示す正面図、（ｂ）は（ａ）におけるＡＡ線断面の状態を示す断面図である。図２は、本発明に係る第２実施例を示し、（ａ）は正面から見た状態を示す正面図、（ｂ）は（ａ）におけるＢＢ線断面の状態を示す断面図である。図３は、本発明に係る第３実施例を示し、（ａ）は正面から見た状態を示す正面図、（ｂ）は（ａ）におけるＣＣ線断面の状態を示す断面図である。図４は、本発明に係る第４実施例を示し、（ａ）は正面から見た状態を示す正面図、（ｂ）は（ａ）におけるＤＤ線断面の状態を示す断面図である。図５は、本発明に係る第５実施例を示し、（ａ）は正面から見た状態を示す正面図、（ｂ）は（ａ）におけるＥＥ線断面の状態を示す断面図である。
【００１６】
図１において、本発明に係る第１実施例について説明する。枠体１には発光部材３と導光部材４とが取り付けられている。導光部材４には、入光面４ａと照射面４ｂとが形成され、発光部材３が発光する光を入光面４ａから照射面４ｂに導くように構成されている。発光部材３は実装基板２に固着され、実装基板２は、枠体１に形成されている２箇所の突起部１ａに当接すると共に、発光部材３の発光面３ａが導光部材４の入光面４ａに当接し、発光部材押圧部材として働く実装基板２の弾力性により発光部材３の発光面３ａを導光部材４の入光面４ａに圧接している。従って、発光面３ａと入光面４ａとは密着しており、隙間ができたり平行にならなかったりすることはない。
【００１７】
また、導光部材４の入光部４ａに対向する端面には、入光部４ａからはいった光を反射するための反射拡散板５が固着されている。従って、入光部４ａから導光部材４の内部にはいった光は反射拡散板５によって反射されて、前述した従来例におけるダークゾーンにも行きわたり、照射面４ｂの全面から照射することができる。
【００１８】
図２において、本発明に係る第２実施例について説明する。枠体１０１には発光部材１０３と導光部材１０４とが取り付けられている。導光部材１０４には、入光面１０４ａと発光面１０４ｂとが形成され、発光部材１０３が発光する光を入光面１０４ａから発光面１０４ｂに導くように構成されている。発光部材１０３は実装基板１０２に固着され、実装基板１０２は、枠体１０１と導光部材１０４との間に取り付けられ、発光部材押圧部材として働く圧接板ばね１０５の弾力性により発光部材１０３の発光面１０３ａを導光部材１０４の入光面１０４ａに圧接している。従って、発光面１０３ａと入光面１０４ａとは密接しており、隙間ができたり平行にならなかったりすることはない。他の作用については前述した第１実施例と同様である。
【００１９】
図３において、本発明に係る第３実施例について説明する。枠体２０１には発光部材２０３と導光部材２０４とが取り付けられている。導光部材２０４には、入光面２０４ａと発光面２０４ｂとが形成され、発光部材２０３が発光する光を入光面２０４ａから発光面２０４ｂに導くように構成されている。発光部材２０３は実装基板２０２に固着され、実装基板２０２は、枠体２０１と導光部材２０４との間に取り付けられ、発光部材押圧部材として働く圧接泉ばね２０６の弾力性により発光部材２０３の発光面２０３ａを導光部材２０４の入光面２０４ａに圧接している。従って、発光面２０３ａと入光面２０４ａとは密接しており、隙間ができたり平行にならなかったりすることはない。他の作用については前述した第１実施例と同様である。
【００２０】
図４において、本発明に係る第４実施例について説明する。枠体３０１には発光部材３０３と導光部材３０４とが取り付けられている。導光部材３０４には、入光面３０４ａと発光面３０４ｂとが形成され、発光部材３０３が発光する光を入光面３０４ａから発光面３０４ｂに導くように構成されている。発光部材３０３は実装基板２０２に固着され、実装基板３０２は、枠体３０１と導光部材３０４との間に取り付けられ、発光部材押圧部材として働く圧接ゴム３０７の弾力性により発光部材３０３の発光面３０３ａを導光部材３０４の入光面３０４ａに圧接している。従って、発光面３０３ａと入光面３０４ａとは密接しており、隙間ができたり平行にならなかったりすることはない。他の作用については前述した第１実施例と同様である。
【００２１】
図５において、本発明に係る第５実施例について説明する。枠体４０１には発光部材４０３と導光部材４０４とが取り付けられている。導光部材４０４には、入光面４０４ａと発光面４０４ｂとが形成され、発光部材４０３が発光する光を入光面４０４ａから発光面４０４ｂに導くように構成されている。発光部材４０３は実装基板４０２に固着され、実装基板４０２は、枠体４０１にねじ込まれている２箇所の圧接ねじ４０８に当接すると共に、発光部材４０４の発光面４０３ａが導光部材４０４の入光面４０４ａに当接し、発光部材押圧部材として働く実装基板４０２の弾力性により発光部材４０３の発光面４０３ａを導光部材４０４の入光面４０４ａに圧接している。従って、発光面４０３ａと入光面４０４ａとは密着しており、隙間ができたり平行にならなかったりすることはない。他の作用については前述した第１実施例と同様である。
【００２２】
【発明の効果】
本発明によれば、上述したように発光部材の発光面を導光部材の入光面に密着させるので、発光部材から発光された光は導光部材の入光部の表面で反射することがなく光伝導効率を高い。また、導光部材の入光部に対向する端面に反射拡散板を固着したので、入光部から導光部材の内部にはいった光を反射拡散板によって反射し照射面の全面から照射することができる。
【図面の簡単な説明】
【図１】本発明に係る第１実施例を示し、（ａ）は正面から見た状態を示す正面図、（ｂ）は（ａ）におけるＡＡ線断面の状態を示す断面図である。
【図２】本発明に係る第２実施例を示し、（ａ）は正面から見た状態を示す正面図、（ｂ）は（ａ）におけるＢＢ線断面の状態を示す断面図である。
【図３】本発明に係る第３実施例を示し、（ａ）は正面から見た状態を示す正面図、（ｂ）は（ａ）におけるＣＣ線断面の状態を示す断面図である。
【図４】本発明に係る第４実施例を示し、（ａ）は正面から見た状態を示す正面図、（ｂ）は（ａ）におけるＤＤ線断面の状態を示す断面図である。
【図５】本発明に係る第５実施例を示し、（ａ）は正面から見た状態を示す正面図、（ｂ）は（ａ）におけるＥＥ線断面の状態を示す断面図である。
【図６】従来例を示し、（ａ）は正面から見た状態を示す正面図、（ｂ）は（ａ）におけるＦＦ線断面の状態を示す断面図である。
【符号の説明】
１ 枠体
１ａ 突起部
２、１０２、２０２、３０２、４０２、５０２ 実装基板
５０２ａ 取付ねじ
３、１０３、２０３、３０３、４０３、５０３ 発光部材
３ａ、１０３ａ、２０３ａ、３０３ａ、４０３ａ、５０３ａ 発光面
４、１０４、２０４、３０４、４０４、５０４ 導光部材
４ａ、１０４ａ、２０４ａ、３０４ａ、４０４ａ、５０４ａ 入光面
４ｂ、１０４ｂ、２０４ｂ、３０４ｂ、４０４ｂ、５０４ｂ 照射面
１０５ 圧接板ばね
２０６ 圧接線ばね
３０７ 圧接ゴム
４０８ 圧接ねじ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a planar light source device used for a backlight of a passive display device such as a liquid crystal display panel.
[0002]
[Prior art]
In a conventional planar light source device, light emitted from a light emitting member such as an LED light emitting element is guided to a planar light emitting surface by a light guide member so as to illuminate a passive display device such as a liquid crystal display panel. The light emitting surface of the light emitting member is disposed to face the light incident portion of the light guide member.
[0003]
6A and 6B show a sixth embodiment according to the present invention, in which FIG. 6A is a front view showing a state viewed from the front, and FIG. 6B is a cross-sectional view showing a state of a cross section taken along line FF in FIG. In FIG. 6, a light emitting member 503 and a light guide member 504 are attached to a frame body 501. The light guide member 504 includes a light incident surface 504a and an irradiation surface 504b, and is configured to guide light emitted from the light emitting member 503 from the light incident surface 504a to the irradiation surface 504b. The light emitting member 503 is fixed to the mounting substrate 502, and the mounting substrate 502 is attached to the frame body 501 with two mounting screws 502a, and the light emitting surface 503a is opposed to the light incident surface 504a of the light guide member 504.
[0004]
[Problems to be solved by the invention]
As described above, in the conventional planar light source device, the light guide plate 504 and the mounting substrate 502 are positioned and attached to the frame body 501, and the light emitting member 503 is fixed to the mounting substrate 502. . A light emitting member 503 having a flat light emitting surface 503 a is fixed to the mounting substrate 502. The light guide plate 504 is formed with a light incident surface 504a formed in a semi-cylindrical shape and an irradiation surface 504b perpendicular to the light incident surface 504a. Since the light emitting surface 503a of the light emitting member 503 is flat and the light incident surface 504a of the light guide member 504 is formed in a semi-cylindrical shape, a relatively large gap is formed between the light emitting surface 503a and the light incident portion 504a. d can be made. Therefore, a part of the light L1 emitted from the light emitting surface 503a of the light emitting member 503 is reflected as light L2 on the surface of the light incident portion 504a of the light guide member 504, thereby reducing the photoconductive efficiency. The light L1 emitted from the light emitting surface 503a of the light emitting member 503 and entering the light guide plate 504 from the light incident portion 504a is transmitted as light L3 without being reflected from the end surface facing the light incident portion 504a. Therefore, the light L1 does not reach both sides of the light incident portion 504a, and a dark zone 504c is formed on the irradiation surface 504b, so that the entire surface of the irradiation surface 504b does not have uniform brightness.
[0005]
An object of the present invention is to provide a planar light source device that can simplify the component configuration and assembly process, have high photoconductive efficiency, and can illuminate the entire irradiated surface with uniform brightness.
[0006]
[Means for Solving the Problems]
A frame, a mounting substrate supported by the frame, a light emitting member fixed to the mounting substrate, a light incident portion for receiving light emitted from the light emitting member supported by the frame, and In a planar light source device having a light guide member formed with an illumination surface for illuminating another object with light incident from a light incident part, the light emitting surface of the light emitting member is made incident on the light guide member. A light emitting member pressing member for elastically adhering to the portion, wherein the mounting substrate is supported by the frame at a plurality of points separated from the light emitting surface, and the light emitting member is pressed by the light emitting member pressing member. The light emitting surface is closely attached to the light incident part of the light guide member.
A frame; a mounting board supported by the frame; a light emitting member fixed to the mounting board; and a light incident part for receiving light emitted from the light emitting member supported by the frame. And a light source member formed with an illumination surface for illuminating another object with light entering from the light incident part, the light emitting surface of the light emitting member A light emitting member pressing member for elastically adhering to the light incident portion is constituted by the mounting substrate, and the mounting substrate is supported by the support portion of the frame body at a plurality of points separated from the light emitting surface. The light emitting surface of the light emitting member is brought into close contact with the light incident portion of the light guide member by the mounting substrate.
[0007]
Further, a reflection diffusion plate for reflecting light entering from the light incident portion is fixed to an end face of the light guide member facing the light incident portion.
[0009]
Further, the light emitting member pressing member is constituted by a light emitting member mounting substrate that supports the light emitting member.
[0010]
The light emitting member pressing member is supported by a support portion of the frame at a plurality of points separated from the light emitting surface.
[0011]
The mounting substrate is supported by press contact screws that are screwed to the frame at a plurality of points separated from the light emitting surface.
[0012]
Further, the support portion of the frame is formed in a protruding shape.
[0014]
Further, the light emitting member pressing member is a pressure tangential spring.
[0015]
Further, the light emitting member pressing member is a pressure contact rubber.
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below based on examples with reference to the drawings.
1A and 1B show a first embodiment according to the present invention, in which FIG. 1A is a front view showing a state viewed from the front, and FIG. 1B is a cross-sectional view showing a cross-sectional state taken along line AA in FIG. 2A and 2B show a second embodiment according to the present invention, in which FIG. 2A is a front view showing a state viewed from the front, and FIG. 2B is a cross-sectional view showing a state of a cross section taken along line BB in FIG. 3A and 3B show a third embodiment according to the present invention, in which FIG. 3A is a front view showing a state viewed from the front, and FIG. 3B is a cross-sectional view showing a state of a CC line cross section in FIG. 4A and 4B show a fourth embodiment according to the present invention, in which FIG. 4A is a front view showing a state viewed from the front, and FIG. 4B is a cross-sectional view showing a state of a DD line cross section in FIG. 5A and 5B show a fifth embodiment according to the present invention, in which FIG. 5A is a front view showing a state viewed from the front, and FIG. 5B is a cross-sectional view showing a state of a cross section taken along line EE in FIG.
[0016]
A first embodiment according to the present invention will be described with reference to FIG. A light emitting member 3 and a light guide member 4 are attached to the frame 1. The light guide member 4 includes a light incident surface 4a and an irradiation surface 4b, and is configured to guide light emitted from the light emitting member 3 from the light incident surface 4a to the irradiation surface 4b. The light emitting member 3 is fixed to the mounting substrate 2, the mounting substrate 2 abuts against the two projecting portions 1 a formed on the frame 1, and the light emitting surface 3 a of the light emitting member 3 is incident on the light guide member 4. The light emitting surface 3a of the light emitting member 3 is in pressure contact with the light incident surface 4a of the light guide member 4 by the elasticity of the mounting substrate 2 that contacts the surface 4a and acts as a light emitting member pressing member. Accordingly, the light emitting surface 3a and the light incident surface 4a are in close contact with each other, and there is no possibility that a gap is formed or parallel.
[0017]
Further, a reflection diffusion plate 5 for reflecting light entering from the light incident portion 4a is fixed to an end face of the light guide member 4 facing the light incident portion 4a. Therefore, the light entering the light guide member 4 from the light incident part 4a is reflected by the reflection diffusion plate 5 and can reach the dark zone in the above-described conventional example or can be irradiated from the entire irradiation surface 4b. .
[0018]
A second embodiment according to the present invention will be described with reference to FIG. A light emitting member 103 and a light guide member 104 are attached to the frame body 101. The light guide member 104 includes a light incident surface 104a and a light emitting surface 104b, and is configured to guide light emitted from the light emitting member 103 from the light incident surface 104a to the light emitting surface 104b. The light emitting member 103 is fixed to the mounting substrate 102, and the mounting substrate 102 is attached between the frame body 101 and the light guide member 104, and the light emission of the light emitting member 103 is caused by the elasticity of the pressure contact leaf spring 105 that functions as a light emitting member pressing member. The surface 103 a is in pressure contact with the light incident surface 104 a of the light guide member 104. Accordingly, the light emitting surface 103a and the light incident surface 104a are in close contact with each other, so that there is no gap or not parallel. Other operations are the same as those in the first embodiment.
[0019]
In FIG. 3, a third embodiment according to the present invention will be described. A light emitting member 203 and a light guide member 204 are attached to the frame 201. The light guide member 204 includes a light incident surface 204a and a light emitting surface 204b, and is configured to guide light emitted from the light emitting member 203 from the light incident surface 204a to the light emitting surface 204b. The light emitting member 203 is fixed to the mounting substrate 202, and the mounting substrate 202 is attached between the frame body 201 and the light guide member 204, and the light emitting member 203 emits light by the elasticity of the pressure spring 206 that acts as a light emitting member pressing member. The surface 203 a is in pressure contact with the light incident surface 204 a of the light guide member 204. Therefore, the light emitting surface 203a and the light incident surface 204a are in close contact with each other, so that there is no gap or not parallel. Other operations are the same as those in the first embodiment.
[0020]
In FIG. 4, a fourth embodiment according to the present invention will be described. A light emitting member 303 and a light guide member 304 are attached to the frame body 301. The light guide member 304 includes a light incident surface 304a and a light emitting surface 304b, and is configured to guide light emitted from the light emitting member 303 from the light incident surface 304a to the light emitting surface 304b. The light emitting member 303 is fixed to the mounting substrate 202, and the mounting substrate 302 is attached between the frame body 301 and the light guide member 304, and the light emitting surface of the light emitting member 303 is provided by the elasticity of the pressure contact rubber 307 that functions as a light emitting member pressing member. 303 a is pressed against the light incident surface 304 a of the light guide member 304. Therefore, the light emitting surface 303a and the light incident surface 304a are in close contact with each other, and there is no possibility that a gap is formed or the parallelism is not achieved. Other operations are the same as those in the first embodiment.
[0021]
5, a fifth embodiment according to the present invention will be described. A light emitting member 403 and a light guide member 404 are attached to the frame 401. The light guide member 404 includes a light incident surface 404a and a light emitting surface 404b, and is configured to guide light emitted from the light emitting member 403 from the light incident surface 404a to the light emitting surface 404b. The light emitting member 403 is fixed to the mounting substrate 402, the mounting substrate 402 abuts against two press contact screws 408 screwed into the frame body 401, and the light emitting surface 403 a of the light emitting member 404 is incident on the light guide member 404. The light emitting surface 403a of the light emitting member 403 is brought into pressure contact with the light incident surface 404a of the light guide member 404 by the elasticity of the mounting substrate 402 that abuts the surface 404a and functions as a light emitting member pressing member. Therefore, the light emitting surface 403a and the light incident surface 404a are in close contact with each other, so that there is no gap or not parallel. Other operations are the same as those in the first embodiment.
[0022]
【The invention's effect】
According to the present invention, as described above, the light emitting surface of the light emitting member is brought into close contact with the light incident surface of the light guide member. High photoconductive efficiency. In addition, since the reflection diffusion plate is fixed to the end surface of the light guide member facing the light incident portion, the light entering the light guide member from the light incident portion is reflected by the reflection diffusion plate and irradiated from the entire irradiation surface. Can do.
[Brief description of the drawings]
FIG. 1 shows a first embodiment according to the present invention, in which (a) is a front view showing a state viewed from the front, and (b) is a cross-sectional view showing a cross-sectional state taken along line AA in (a).
FIGS. 2A and 2B show a second embodiment according to the present invention, in which FIG. 2A is a front view showing a state as viewed from the front, and FIG.
3A and 3B show a third embodiment according to the present invention, in which FIG. 3A is a front view showing a state viewed from the front, and FIG. 3B is a cross-sectional view showing a state of a CC line cross section in FIG.
FIGS. 4A and 4B show a fourth embodiment according to the present invention, in which FIG. 4A is a front view showing a state viewed from the front, and FIG.
5A and 5B show a fifth embodiment according to the present invention, in which FIG. 5A is a front view showing a state viewed from the front, and FIG.
6A and 6B show a conventional example, in which FIG. 6A is a front view showing a state as viewed from the front, and FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Frame 1a Projection part 2,102,202,302,402,502 Mounting board 502a Mounting screw 3,103,203,303,403,503 Light-emitting member 3a, 103a, 203a, 303a, 403a, 503a Light-emitting surface 4, 104, 204, 304, 404, 504 Light guide member 4a, 104a, 204a, 304a, 404a, 504a Light incident surface 4b, 104b, 204b, 304b, 404b, 504b Irradiation surface 105 Pressing leaf spring 206 Pressing contact spring 307 Pressing rubber 408 Pressure welding screw

Claims (7)

枠体と、該枠体に支承された実装基板と、該実装基板に固着された発光部材と、前記枠体に支承され前記発光部材が発光する光を入光するための入光部と該入光部からはいった光により他の物体を照明するための照明面とが形成されている導光部材とを有する面状光源装置において、前記発光部材の発光面を前記導光部材の入光部に弾性的に密着させるための発光部材押圧部材を有し、前記実装基板は、前記発光面を中心として隔てられた複数点において前記枠体により支持され、前記発光部材押圧部材により前記発光部材の発光面を前記導光部材の入光部に密着させることを特徴とする面状光源装置。A frame, a mounting substrate supported by the frame, a light emitting member fixed to the mounting substrate, a light incident portion for receiving light emitted from the light emitting member supported by the frame, and In a planar light source device having a light guide member formed with an illumination surface for illuminating another object with light incident from a light incident part, the light emitting surface of the light emitting member is made incident on the light guide member. A light emitting member pressing member for elastically adhering to the portion, wherein the mounting substrate is supported by the frame at a plurality of points separated from the light emitting surface, and the light emitting member is pressed by the light emitting member pressing member. The planar light source device is characterized in that the light emitting surface is closely attached to the light incident portion of the light guide member. 枠体と、該枠体に支承された実装基板と、該実装基板に固着された発光部材と、前記枠体に支承され前記発光部材が発光する光を入光するための入光部と該入光部からはいった光により他の物体を照明するための照明面とが形成されている導光部材とを有する面状光源装置において、前記発光部材の発光面を前記導光部材の入光部に弾性的に密着させるための発光部材押圧部材を前記実装基板により構成し、前記実装基板は、前記発光面を中心として隔てられた複数点において前記枠体の支持部により支持され、前記実装基板により前記発光部材の発光面を前記導光部材の入光部に密着させることを特徴とする面状光源装置。 A frame, a mounting substrate supported by the frame, a light emitting member fixed to the mounting substrate, a light incident portion for receiving light emitted from the light emitting member supported by the frame, and In a planar light source device having a light guide member formed with an illumination surface for illuminating another object with light incident from a light incident part, the light emitting surface of the light emitting member is made incident on the light guide member. A light emitting member pressing member for elastically adhering to a portion is configured by the mounting substrate, and the mounting substrate is supported by a support portion of the frame body at a plurality of points separated from the light emitting surface, and the mounting A planar light source device , wherein a light emitting surface of the light emitting member is brought into close contact with a light incident portion of the light guide member by a substrate . 前記発光部材押圧部材が圧接線ばねであることを特徴とする請求項１に記載の面状光源装置。The planar light source device according to claim 1, wherein the light emitting member pressing member is a pressure tangential spring. 前記発光部材押圧部材が圧接ゴムであることを特徴とする請求項１に記載の面状光源装置。The planar light source device according to claim 1, wherein the light emitting member pressing member is a pressure contact rubber. 前記実装基板は、前記発光面を中心として隔てられた複数点において前記枠体に螺止されている圧接ねじにより支持されていることを特徴とする請求項２に記載の面状光源装置。The planar light source device according to claim 2, wherein the mounting substrate is supported by press contact screws that are screwed to the frame body at a plurality of points separated from the light emitting surface. 前記枠体の支持部は、突起状に形成されていることを特徴とする請求項２に記載の面状光源装置。The planar light source device according to claim 2, wherein the support portion of the frame body is formed in a protruding shape. 前記導光部材の入光部に対向する端面には、前記入光部からはいった光を反射するための反射拡散板が固着されていることを特徴とする請求項１ないし６のいずれかに記載の面状光源装置。The end face facing the light entrance portion of the light guide member is in any one of claims 1 to 6, characterized in that the reflecting diffuser for reflecting the light entered from the light incident part is fixed The planar light source device described.
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