JP6025791B2 - Light emitting diode light source module - Google Patents

Light emitting diode light source module Download PDF

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JP6025791B2
JP6025791B2 JP2014170216A JP2014170216A JP6025791B2 JP 6025791 B2 JP6025791 B2 JP 6025791B2 JP 2014170216 A JP2014170216 A JP 2014170216A JP 2014170216 A JP2014170216 A JP 2014170216A JP 6025791 B2 JP6025791 B2 JP 6025791B2
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light
emitting diode
guide film
light emitting
light source
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JP2015043321A (en
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浩翔 林
浩翔 林
忠民 張
忠民 張
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Advanced Optoelectronic Technology Inc
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • 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
    • F21Y2101/00—Point-like light sources
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/12—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities

Description

本発明は、半導体照明分野に関し、特に発光ダイオード光源モジュールに関するものである。   The present invention relates to the field of semiconductor lighting, and more particularly to a light-emitting diode light source module.

発光ダイオード（Ｌｉｇｈｔ Ｅｍｉｔｔｉｎｇ Ｄｉｏｄｅ、ＬＥＤ）は、電流を特定の波長の光に変換できる半導体素子からできており、高輝度、低電圧、低消費電力、長寿命である等の利点を有することから、新しいタイプの光源として、現在広く利用されている。   A light emitting diode (LED) is made of a semiconductor element that can convert a current into light of a specific wavelength, and has advantages such as high brightness, low voltage, low power consumption, and long life. It is now widely used as a new type of light source.

発光ダイオードが薄型光源モジュールに応用される場合、一般的には、導光フィルムと組み合わせて使用される。この導光フィルムは、高屈折率及び高光透過率を有する透明なフィルムであり、その表面には、異なる密度の微細構造が形成されている。これにより、点光源を面光源に変換することができる。しかし、発光ダイオードから出射された光が導光フィルムの中に入射した場合、一部の光が損失するため、光源モジュールの光の利用効率は低い。また、光が集中するため、光源モジュールから出射された光は不均一になる。従って、光源モジュールの照明効果に影響を与える。   When a light emitting diode is applied to a thin light source module, it is generally used in combination with a light guide film. This light guide film is a transparent film having a high refractive index and a high light transmittance, and fine structures having different densities are formed on the surface thereof. Thereby, a point light source can be converted into a surface light source. However, when the light emitted from the light emitting diode enters the light guide film, a part of the light is lost, and thus the light use efficiency of the light source module is low. Further, since the light is concentrated, the light emitted from the light source module is not uniform. Therefore, the lighting effect of the light source module is affected.

上記課題を解決するために、本発明は、優れた照明効果を有する発光ダイオード光源モジュールを提供する。   In order to solve the above problems, the present invention provides a light emitting diode light source module having an excellent illumination effect.

本発明に係る発光ダイオード光源モジュールは、導光フィルムと、導光フィルムに対向する発光ダイオード光源と、導光フィルムの側部の表面に形成された複数の光学微細構造体と、複数の光学微細構造体上に形成されたコロイド層と、を備える。発光ダイオード光源は、コロイド層上に設置され、コロイド層の屈折率は、導光フィルムの屈折率より小さく、導光フィルムには、さらに複数の光出射部が形成され、発光ダイオード光源から出射された光は、順次にコロイド層及び光学微細構造体を通過して導光フィルムの内部に入射し、その後、導光フィルムの内部で連続的に反射した後、光出射部から外部に出射される。   The light-emitting diode light source module according to the present invention includes a light guide film, a light-emitting diode light source facing the light guide film, a plurality of optical microstructures formed on the surface of the side of the light guide film, and a plurality of optical micro-structures. A colloid layer formed on the structure. The light emitting diode light source is installed on the colloid layer, and the refractive index of the colloid layer is smaller than the refractive index of the light guide film, and the light guide film is further formed with a plurality of light emitting portions and emitted from the light emitting diode light source. The light sequentially passes through the colloidal layer and the optical microstructure, enters the light guide film, and then continuously reflects inside the light guide film and then exits from the light emitting portion. .

従来の技術と比べて、本発明の発光ダイオード光源モジュールは、発光ダイオード光源から出射された光が、先ず、コロイド層の中に入射して屈折した後、導光フィルム上に形成された光学微細構造体を介して導光フィルムの内部に入射し、導光フィルムの内部で連続的に反射した後、導光フィルムに形成された光出射部から外部に出射される。光がコロイド層によって屈折された後、導光フィルムの内部に入射し、コロイド層の屈折率は導光フィルムの屈折率より小さいので、導光フィルムに入射した光の損失を減少することができる。また、コロイド層は光学微細構造体上に設置され、該光学微細構造体は、導光フィルムに入射した光を散乱することができるため、発光ダイオード光源モジュールから出射された光は均一になる。従って、本発明の発光ダイオード光源モジュールは、優れた照明効果及び高い光利用効率を有する。   Compared with the prior art, the light-emitting diode light source module of the present invention is the optical micro-lens formed on the light guide film after the light emitted from the light-emitting diode light source is first incident into the colloid layer and refracted. The light is incident on the inside of the light guide film through the structure, continuously reflected inside the light guide film, and then emitted to the outside from the light emitting portion formed on the light guide film. After the light is refracted by the colloid layer, it is incident on the inside of the light guide film, and since the refractive index of the colloid layer is smaller than the refractive index of the light guide film, the loss of light incident on the light guide film can be reduced. . Further, the colloid layer is disposed on the optical microstructure, and the optical microstructure can scatter light incident on the light guide film, so that the light emitted from the light emitting diode light source module becomes uniform. Therefore, the light emitting diode light source module of the present invention has an excellent illumination effect and high light utilization efficiency.

本発明の実施形態に係る発光ダイオード光源モジュールの平面図である。It is a top view of the light emitting diode light source module which concerns on embodiment of this invention. 図１に示した発光ダイオード光源モジュールのＩＩ−ＩＩ線に沿う断面図である。It is sectional drawing which follows the II-II line of the light emitting diode light source module shown in FIG.

以下、図面を参照して、本発明の実施形態について説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１及び図２を参照すると、本発明の実施形態に係る発光ダイオード光源モジュール１００は、導光フィルム１０と、導光フィルム１０の側部の表面に形成された複数の光学微細構造体２０と、複数の光学微細構造体２０上に形成されたコロイド層３０と、コロイド層３０に対向して設置された発光ダイオード光源４０と、を備える。   Referring to FIGS. 1 and 2, a light-emitting diode light source module 100 according to an embodiment of the present invention includes a light guide film 10 and a plurality of optical microstructures 20 formed on the surface of a side portion of the light guide film 10. A colloid layer 30 formed on the plurality of optical microstructures 20, and a light-emitting diode light source 40 disposed to face the colloid layer 30.

導光フィルム１０は、ポリカーボネート（ＰＣ）、ポリメチルメタクリレート（ＰＭＭＡ）又は光学ガラス等の透明な材料からなる。本実施形態において、導光フィルム１０は、所望の形状に湾曲できる可撓性フィルムであるから、軽量薄型の効果を実現することができる。   The light guide film 10 is made of a transparent material such as polycarbonate (PC), polymethyl methacrylate (PMMA), or optical glass. In the present embodiment, since the light guide film 10 is a flexible film that can be bent into a desired shape, a light and thin effect can be realized.

光学微細構造体２０は、導光フィルム１０の頂面から導光フィルム１０の内部へ窪んで形成されている。他の実施形態において、光学微細構造体２０は、導光フィルム１０の底面又は側部の表面に形成されても良い。また、光学微細構造体２０は、波状又はのこぎり歯状を呈し、球面状凹部構造又は自由曲面凹部構造であってもよい。本実施形態において、光学微細構造体２０は、波状を呈し、離間して設置された凹部２２及び凸部２４を備える。発光ダイオード光源４０から出射された光は、光学微細構造体２０によって散乱された後、導光フィルム１０の内部に入射する。本実施形態において、光学微細構造体２０の幅と深さとの比は、２より大きい。   The optical microstructure 20 is formed to be recessed from the top surface of the light guide film 10 into the light guide film 10. In other embodiments, the optical microstructure 20 may be formed on the bottom surface or side surface of the light guide film 10. Further, the optical fine structure 20 has a wave shape or a sawtooth shape, and may be a spherical concave structure or a free curved concave structure. In the present embodiment, the optical microstructure 20 is provided with a concave portion 22 and a convex portion 24 that are wavy and are spaced apart. The light emitted from the light emitting diode light source 40 is scattered by the optical microstructure 20 and then enters the light guide film 10. In the present embodiment, the ratio between the width and depth of the optical microstructure 20 is greater than 2.

導光フィルム１０の頂面には、さらに、複数の光出射部１２が形成されている。この複数の光出射部１２は、彫刻又はエッチングによって導光フィルム１０上に形成されるパターン化された構造であってもよい。該パターン化された構造は、突起構造、波状構造、のこぎり歯状構造、球面状凹部構造又は自由曲面凹部構造であってもよい。複数の光出射部１２の配列方式は、マトリックス方式、徐々に疎になる方式、徐々に緊密になる方式又は不規則な方式であってもよい。本実施形態において、光出射部１２は、球面状凹部構造であり、且つ不規則な方式によって導光フィルム１０の頂面上に間隔を空けて配列されている。他の実施形態において、光出射部１２は、導光フィルム１０の任意の側部の表面又は同時に複数の側部の表面に形成してもよい。   A plurality of light emitting portions 12 are further formed on the top surface of the light guide film 10. The plurality of light emitting portions 12 may have a patterned structure formed on the light guide film 10 by engraving or etching. The patterned structure may be a protrusion structure, a wave structure, a sawtooth structure, a spherical concave structure, or a free curved concave structure. The arrangement method of the plurality of light emitting units 12 may be a matrix method, a gradually sparse method, a gradually closer method, or an irregular method. In the present embodiment, the light emitting portions 12 have a spherical concave structure, and are arranged on the top surface of the light guide film 10 with an interval in an irregular manner. In other embodiment, you may form the light emission part 12 in the surface of the arbitrary side parts of the light guide film 10, or the surface of a some side part simultaneously.

コロイド層３０は、粘度を有する透明な材料からなり、光学微細構造体２０上に設置される。本実施形態において、コロイド層３０は、光学微細構造体２０に貼り合わされる。コロイド層３０の屈折率は、導光フィルム１０の屈折率より小さい。また、コロイド層３０は、光入射面３２及び光入射面３２に対向する光出射面３４を備える。光入射面３２は、発光ダイオード光源４０に対向して設置され、光出射面３４は、光学微細構造体２０に貼り合わされる。   The colloid layer 30 is made of a transparent material having viscosity, and is disposed on the optical microstructure 20. In the present embodiment, the colloid layer 30 is bonded to the optical microstructure 20. The refractive index of the colloid layer 30 is smaller than the refractive index of the light guide film 10. The colloid layer 30 includes a light incident surface 32 and a light emitting surface 34 that faces the light incident surface 32. The light incident surface 32 is installed facing the light emitting diode light source 40, and the light emitting surface 34 is bonded to the optical microstructure 20.

発光ダイオード光源４０は、回路４２及び該回路４２に接続された発光ダイオード４４を備える。回路４２は、電気めっき又は蒸着方式によって導光フィルム１０又はコロイド層３０上に直接形成してもよい。発光ダイオード４４は、窒化ガリウム、窒化インジウムガリウム又は窒化アルミニウムインジウムガリウム等の半導体材料からなり、電流によって励起して可視光を生成することができる。本実施形態において、発光ダイオード４４の数量は複数であり、複数の発光ダイオード４４は、均一に間隔を空けてコロイド層３０上に配列される。発光ダイオード４４は、コロイド層３０の光入射面３２に貼り合わされる。   The light emitting diode light source 40 includes a circuit 42 and a light emitting diode 44 connected to the circuit 42. The circuit 42 may be formed directly on the light guide film 10 or the colloid layer 30 by electroplating or vapor deposition. The light emitting diode 44 is made of a semiconductor material such as gallium nitride, indium gallium nitride, or aluminum indium gallium nitride, and can be excited by current to generate visible light. In the present embodiment, the number of the light emitting diodes 44 is plural, and the plurality of light emitting diodes 44 are arranged on the colloid layer 30 at regular intervals. The light emitting diode 44 is bonded to the light incident surface 32 of the colloid layer 30.

発光ダイオード光源モジュール１００が使用される場合、発光ダイオード光源４０から出射された光は、先ず、コロイド層３０の中に入射し、次に、導光フィルム１０上に形成された光学微細構造体２０を介して導光フィルム１０の内部に入射する。導光フィルム１０の内部に入射した光は、導光フィルム１０の内部で連続的に反射した後、導光フィルム１０の頂面に設けられた光出射部１２を介して出射される。   When the light-emitting diode light source module 100 is used, the light emitted from the light-emitting diode light source 40 first enters the colloid layer 30 and then the optical microstructure 20 formed on the light guide film 10. Through the light guide film 10. The light incident on the inside of the light guide film 10 is continuously reflected inside the light guide film 10 and then emitted through the light emitting portion 12 provided on the top surface of the light guide film 10.

従来の技術と比べると、本発明の発光ダイオード光源モジュール１００は、発光ダイオード光源４０から出射された光が、先ず、コロイド層３０の中に入射して屈折した後、導光フィルム１０上に形成された光学微細構造体２０を介して導光フィルム１０の内部に入射し、導光フィルム１０の内部で連続的に反射した後、導光フィルム１０の頂面に形成された光出射部１２を介して出射される。光がコロイド層３０によって屈折された後、導光フィルム１０の内部に入射し、コロイド層３０の屈折率は導光フィルム１０の屈折率より小さいので、導光フィルム１０に入射した光の損失を減少することができる。また、コロイド層３０は光学微細構造体２０上に設置され、該光学微細構造体２０は、導光フィルム１０に入射した光を散乱することができるため、発光ダイオード光源モジュール１００から出射された光は均一になる。従って、本発明の発光ダイオード光源モジュール１００は、優れた照明効果及び高い光利用効率を有する。   Compared with the prior art, the light emitting diode light source module 100 of the present invention is formed on the light guide film 10 after the light emitted from the light emitting diode light source 40 is first refracted into the colloid layer 30. The light is incident on the inside of the light guide film 10 through the optical microstructure 20 and continuously reflected inside the light guide film 10, and then the light emitting portion 12 formed on the top surface of the light guide film 10 is used. It is emitted through. After the light is refracted by the colloid layer 30, the light enters the light guide film 10. Since the refractive index of the colloid layer 30 is smaller than the refractive index of the light guide film 10, the loss of the light incident on the light guide film 10 is reduced. Can be reduced. Further, since the colloid layer 30 is installed on the optical microstructure 20 and the optical microstructure 20 can scatter light incident on the light guide film 10, the light emitted from the light emitting diode light source module 100. Becomes uniform. Therefore, the light emitting diode light source module 100 of the present invention has an excellent illumination effect and high light utilization efficiency.

１０ 導光フィルム
１２ 光出射部
２０ 光学微細構造体
２２ 凹部
２４ 凸部
３０ コロイド層
３２ 光入射面
３４ 光出射面
４０ 発光ダイオード光源
４２ 回路
４４ 発光ダイオード
１００ 発光ダイオード光源モジュール DESCRIPTION OF SYMBOLS 10 Light guide film 12 Light emitting part 20 Optical fine structure 22 Concave part 24 Convex part 30 Colloid layer 32 Light incident surface 34 Light emitting surface 40 Light emitting diode light source 42 Circuit 44 Light emitting diode 100 Light emitting diode light source module

Claims (2)

導光フィルムと、前記導光フィルムに対向する発光ダイオード光源と、前記導光フィルムの側部の表面に形成された複数の光学微細構造体と、前記複数の光学微細構造体上に形成されたコロイド層と、を備える発光ダイオード光源モジュールにおいて、
前記発光ダイオード光源が、前記コロイド層上に設置され、前記コロイド層の屈折率が、前記導光フィルムの屈折率より小さく、前記導光フィルムには、さらに複数の光出射部が形成され、前記発光ダイオード光源から出射された光が、順次に前記コロイド層及び前記光学微細構造体を通過して前記導光フィルムの内部に入射し、その後、前記導光フィルムの内部で連続的に反射した後、前記光出射部から外部に出射されることを特徴とする発光ダイオード光源モジュール。 A light guide film, a light emitting diode light source facing the light guide film, a plurality of optical microstructures formed on a surface of a side portion of the light guide film, and formed on the plurality of optical microstructures A light emitting diode light source module comprising a colloid layer,
The light emitting diode light source is installed on the colloid layer, and the refractive index of the colloid layer is smaller than the refractive index of the light guide film, and the light guide film further includes a plurality of light emitting portions, After the light emitted from the light-emitting diode light source sequentially enters the light guide film through the colloid layer and the optical microstructure, and then continuously reflected inside the light guide film The light emitting diode light source module is emitted from the light emitting portion to the outside. 前記コロイド層が、光入射面及び該光入射面に対向する光出射面を備え、前記光入射面が、前記発光ダイオード光源に貼り合わされ、前記光出射面が、前記光学微細構造体に貼り合わされることを特徴とする請求項１に記載の発光ダイオード光源モジュール。   The colloid layer includes a light incident surface and a light emitting surface facing the light incident surface, the light incident surface is bonded to the light emitting diode light source, and the light emitting surface is bonded to the optical microstructure. The light-emitting diode light source module according to claim 1.
JP2014170216A 2013-08-26 2014-08-25 Light emitting diode light source module Expired - Fee Related JP6025791B2 (en)

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CN201310373639.XA CN104421681A (en) 2013-08-26 2013-08-26 LED (Light Emitting Diode) light source module
CN201310373639.X 2013-08-26

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