KR20150138709A - Lighting Module and Lighting Device Using the Same - Google Patents

Abstract

The present invention relates to a lighting module used for a lighting device such as a vehicle lamp and the lighting device using the same. The lighting module comprises: a printed circuit board having a first surface, a second surface opposite to the first surface, a 1A side surface connecting the first surface and the second surface, and a 1A coupling unit protruding from the 1A side surface; a light source embedded in the printed circuit board; and a light guide unit stacked on the second surface of the printed circuit board and having the light source therein and having a first surface, a second surface, a 1B side surface between the first surface and the second surface, and a 1B coupling unit protruding from the 1B side surface and stacked on the 1A coupling unit.

Description

TECHNICAL FIELD [0001] The present invention relates to a lighting module and a lighting device using the same,

Embodiments of the present invention relate to a lighting module used in a lighting device such as a lamp for a vehicle and a lighting device using the same.

An LED (Light Emitting Diode) is an element that converts an electric signal into light using a compound semiconductor. A light source using an LED element has advantages such as low power consumption, high color temperature and long life time compared to a conventional light source such as a fluorescent lamp.

An example of a conventional lighting apparatus using an LED light source is disclosed in Korean Patent Laid-Open Publication No. 10-2012-0009209. The illumination device of this publication is a side illumination type backlight device in which a plurality of LED light sources are disposed on one side of a light guide plate, and is disposed between the reflection film and the light guide plate to diffuse the upwardly leaked light in the left and right directions to minimize the luminance deviation in the light modulation plane.

However, in the prior art of the above publication, it is difficult to apply to a lighting apparatus having a flexible or curved surface because the thickness of the lighting apparatus is limited by the thickness of the light guide plate itself by using the light guide plate and the light guide plate itself is not flexible. And design distortion is not easy.

In addition, in the case of a vehicle lamp, durability and reliability are required even in a bad condition such as vehicle vibration. As described above, there is a demand for an illumination device having the above-described flexibility and suitable for a vehicle environment.

According to an embodiment of the present invention, there is provided an illumination module that improves the fixing method and improves the fixing method in the lighting module to increase the degree of design freedom, and a lighting device using the same.

Another embodiment of the present invention provides an illumination module having flexibility that is useful for a vehicle lamp that requires durability and reliability, and a lighting apparatus using the same.

According to an aspect of the present invention, there is provided an illumination module including a first side, a second side opposite to the first side, and an A side connecting the first side and the second side, A printed circuit board having a first A coupling portion protruding from the first A side; A light source mounted on the printed circuit board; And a second surface, a first B side surface between the first surface and the second surface, and a second B side surface that protrudes from the first B side surface and is connected to the first A coupling portion And a light guide portion having a first B engaging portion to be laminated thereon.

In one embodiment, the lighting module further includes a fixing portion having a second engaging portion that engages with the first engaging portion provided in a laminated structure of the first A coupling portion and the first B coupling portion and supports the printed circuit board and the light guide portion. The fixing part may be a frame or a housing of the lighting device.

In one embodiment, the illumination module further comprises a joining member between the first and second engagement portions.

According to another aspect of the present invention, there is provided a lighting module comprising a first side, a second side opposite to the first side, and a first side connecting the first side and the second side, A base substrate having a coupling portion; A printed circuit board disposed on the base substrate; A light guide portion disposed on the printed circuit board; A light source mounted on the printed circuit board and embedded by the light guide portion; And a frame having a second engaging portion for engaging with the first engaging portion and surrounding the light source to emit light of the light source in one direction. Such a lighting module can be used as it is as a lighting device.

In one embodiment, the first engaging portion and the second engaging portion have a fitting structure with respect to each other.

In one embodiment, the illumination module further comprises a joining member between the first and second engagement portions.

In one embodiment, the base substrate covers one end of the inner space of the frame and is inserted into one end of the frame.

In one embodiment, the illumination module may further comprise a reflective layer between the printed circuit board and the light guide portion, an optical pattern layer on the light guide portion, a diffusion plate on the optical pattern layer, or a combination thereof.

A lighting device according to another aspect of the present invention includes any one of the above-described lighting modules and a power source connected to the light source of the lighting module to control the operation of the light source.

According to the present invention, it is possible to provide an illumination module that stably supports the module so that the module is not separated by vehicle vibration while minimizing surface light emission loss by forming protrusions on the side of the light emitting surface of the illumination module, and an illumination device using the same.

Further, according to the present invention, it is possible to increase the degree of design freedom by using the side projection of the module light emitting surface in the lighting module for a vehicle lamp, which requires durability and reliability, and thereby, the product competitiveness can be increased.

1 is a schematic exploded perspective view of a lighting module according to an embodiment of the present invention;
2 is an exploded perspective view of a lighting apparatus according to another embodiment of the present invention.
Figs. 3 and 4 are perspective views for explaining an assembling process of the illuminating device of Fig.
Fig. 5 is a cross-sectional view for explaining a flexible lighting structure employable in the lighting module of Fig. 1 or the lighting device of Fig. 2

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the embodiments described herein and the configurations shown in the drawings are only a preferred embodiment of the present invention, and that various equivalents and modifications may be made thereto at the time of the present application. DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail to avoid obscuring the subject matter of the present invention. The following terms are defined in consideration of the functions of the present invention, and the meaning of each term should be interpreted based on the contents throughout this specification. The same reference numerals are used for portions having similar functions and functions throughout the drawings.

1 is a schematic exploded perspective view of a lighting module according to an embodiment of the present invention.

Referring to FIG. 1, the lighting module according to the present embodiment includes a printed circuit board 12, a light guide portion 13, a fixing portion 14, Relationship. The illumination module may include a joining member 15 therebetween for durability and reliable coupling between the fixing portion 14 and the light guide portion 13. [ In addition, the lighting module may further include support means (110) for coupling the lighting module to the frame or housing of the lighting device according to the implementation.

To explain each component more specifically, the printed circuit board 12 is connected to a light source to transmit a power source or a driving signal. The printed circuit board 12 may include a connector for electrical connection with the outside, a string-shaped wiring for transmitting an electric signal, a pad for mounting the light source, and the like.

The printed circuit board 12 may have a first side and a second side opposite the first side and a side between the first side and the second side. The printed circuit board 12 of this embodiment has the first A coupling portion 121 on the side surface thereof. The first A coupling portion 121 has a protruding structure protruding from the side surface of the printed circuit board 12 with a predetermined width and a predetermined length.

The printed circuit board 12 may be provided in a rigid or flexible type. When the rigid printed circuit board 12 is used, it is relatively cost effective. By using the flexible printed circuit board 12, a flexible lighting module having a predetermined curvature can be realized.

The light source (see reference numeral 201 in Fig. 5) is mounted on the printed circuit board and embedded by the light guide portion on the printed circuit board. The light source is embedded in the light guide part 13 to supply light into the light guide part 13. The light source may be provided to irradiate light from the outside to the inside of the light guide portion 10 according to the implementation.

The light source may be provided including an LED element. The LED element may be a top view type or a side view type, but is not limited thereto. In the case of the upper type, the light source may be mounted on the printed circuit board 12 while lying sideways. When an LED element is used, the light source can output light having high linearity as internal light.

The light guide part 13 is provided so that the inner light of one side can move to the other side. The light guide portion 13 has a first surface and a second surface 132 which is opposite to the first surface and has a predetermined thickness between the first surface and the second surface 132. A printed circuit board 12 is disposed on the first side. The light guide portion 13 may be in the shape of a rectangle, a triangle, a circle, or the like when viewed from the front depending on the shape of the illumination application.

The light guide portion 13 has a first surface and a second surface opposite to the first surface and a side surface between the first surface and the second surface, similar to the case of the printed circuit board 12. The light guide portion 13 of this embodiment has the first B coupling portion 131 on the side surface. The first B coupling portion 131 has a protruding structure protruding from the side surface of the light guide portion 13 with a predetermined width and a predetermined length. The first B-joining portion 131 is provided in a laminated structure with the first A-coupling portion 121 of the printed circuit board 12.

The light guide portion 13 may be formed of glass, resin, or the like. When provided as a resin layer, the light guide portion 13 may have flexibility depending on the thickness of the resin layer. For example, if the printed circuit board 12 is of a flexible type and the thickness of the light guide portion 13 is less than about 250 占 퐉, the lighting module can have a degree of flexibility have. Such flexibility is advantageous in that when the illumination module is applied to a vehicle lamp, it is possible to easily arrange the illumination module according to the curvature of the vehicle lamp.

The light guide portion 13 induces light of the light source and emits it to the second surface 132. The light guide portion 13 has light transmittance and adequate heat resistance. For example, when the lighting module is used for a vehicle lamp, particularly a front lamp, the light guide portion 13 is made of a high heat-resistant silicone resin (for example, Resin).

The above-mentioned high heat-resistant silicone-based resin is preferably used in combination with vinyl-based organopolysiloxanes, hydrogen-containing organopolysiloxanes, Vinylated silicates, Platinum curing catalysts and Additives Quot;). ≪ / RTI > The additives may include photoinitiators and antioxidants. In other words, in the above-described case, the composition of the light guide portion 13 is 20 to 40% by weight of the organopolysiloxane having vinyl groups, 20 to 40% by weight of the hydrogen-containing organopolysiloxane, 10 to 20% , 1 to 3 wt% of a platinum curing catalyst, and 1 to 3 wt% of an additive.

Meanwhile, although not shown in the drawings, the light guide part 13 may include predetermined beads in an amount of about 0.01% to about 0.3% of the total light guide part based on the weight of the resin layer in order to increase reflection of light .

The fixing portion 14 supports the printed circuit board and the light guide portion as at least a part of the housing or the frame of the lighting apparatus. The fixing portion 14 is made of a rigid member such as a metallic material. In this embodiment, the fixing portion 14 has a plate-like structure having a first surface and a second surface opposite to the first surface, and a second coupling disposed on the first side between the first surface and the second surface (141). The second coupling portion 141 refers to a portion recessed from the first side and is formed by stacking a laminated structure (hereinafter referred to as a first coupling portion) of the first A coupling portion 121 and the first B coupling portion 131 .

In this embodiment, the structure or shape of the first engaging portion has a rectangular or parallelogram shape or a saw tooth shape, and the second engaging portion 141 has a structure or a shape to be fitted with the first engaging portion .

The first coupling portion of the printed circuit board 12 and the light guide portion 13 described above is coupled to the second coupling portion 141 of the fixing portion 14, It can be arranged simply and durably on the lighting apparatus.

Further, in this embodiment, the joining member 15 may be disposed between the first engaging portion and the second engaging portion 141 to form a durable and reliable engaging structure between the components of the lighting module. In this case, the joining member 15 is disposed on at least one surface of the first engaging portion facing the second engaging portion, or disposed on at least one surface of the second engaging portion facing the first engaging portion.

The bonding member 15 may be prepared using a photo-curable adhesive resin composition having a small volume shrinkage, a high curing density, adhesion properties with various polymers, or excellent photo-curability against various light sources such as ultraviolet rays or visible light.

For example, the bonding member 15 may be formed of a polymerizable unsaturated compound having an acidic functional group, a polymerizable unsaturated compound having a cyclic ring, a polymerizable unsaturated compound having a hydroxyl group, a polymerizable (meth) acrylate having an aliphatic An unsaturated compound, and a polymerizable unsaturated compound having an isocyanate group.

As another example, the bonding member 15 is a photocurable adhesive composition comprising a binder, a monomer for an adhesive, a photopolymerization initiator, and a curing accelerator, wherein the binder is an acrylic adhesive binder and includes an acidic group, a cyclic cyclic structure functional group, An acrylic adhesive copolymer containing at least two functional groups selected from the group consisting of aliphatic acrylates and isocyanate groups.

On the other hand, in the present embodiment, the supporting means 110 may be additionally disposed on the lower surface or the first surface of the printed circuit board 12. The support means 110 may be an adhesive or an adhesive film disposed on at least a portion of the first side of the printed circuit board as a means for supporting the lighting module with the fixture 14 to the illuminator. According to this configuration, it is possible to more reliably fix the lighting module on the housing or the frame of the lighting apparatus depending on the structure and the type of the lighting apparatus.

In this embodiment, the lighting module may have a structure in which the light guide portion is bent with a predetermined curvature in the thickness direction of the light guide portion with reference to the light guide portion, and a structure in which the plate-like light guide portion is bent with a predetermined curvature in the width direction of the light guide portion . Here, the width direction of the light guide portion corresponds to a direction in which the light guide portion in which the first B engaging portion 131 is disposed extends between both opposite sides of the light guide portion.

According to this embodiment, the projection (corresponding to the first engagement portion) can be formed on the side of the light emitting surface of the lighting module, thereby reliably fixing the lighting module while minimizing the surface light emission loss. By using the illumination module having such a structure, it is possible to provide a durable lighting device that does not easily deviate from vehicle vibration in a lighting device, particularly a vehicle lamp (headlamp).

2 is an exploded perspective view of a lighting apparatus according to another embodiment of the present invention.

2, the illumination device according to the present embodiment has a base substrate 11, a printed circuit board 12, a light source (see reference numeral 201 in Fig. 5) A light guide portion 13, and a frame 140. [

To explain each component more specifically, the base substrate 11 is a plate having a predetermined shape (for example, a triangular column) when viewed from the front (the upper side of the drawing). The base substrate 11 supports the printed circuit board 12 and the light guide portion 13. 2, the shape of the base substrate 11 is not limited to such a shape. For example, the shape of the triangular prism may be a curved shape that is bent according to the shape of the lighting device desired by the user, Shape.

The base substrate 11 may be made of a metallic material, a plastic material, or a composite material. For example, the base substrate 11 may be formed of a composite material for a vehicle.

In this embodiment, the base substrate 11 has a first surface, a second surface 112 opposite to the first surface, and a side connecting the edges of the first surface and the edges of the second surface 112 . In addition, the base substrate 11 has a first engaging portion 111 provided on the side surface thereof with an intermittent protruding structure.

The first engaging portion 111 may include at least a pair of engaging portions that are disposed to face each other on two opposing sides of the base substrate 11. The first coupling portion 111 protrudes in a substantially rectangular shape on the side surface, but is not limited thereto, and any shape capable of performing similar functions such as a semicircular, polygonal, trapezoidal, triangular,

The printed circuit board 12, the light source, and the light guide portion 13 are arranged in the form of a triangular film or plate between the base substrate 11 and the frame 140, And may be substantially the same as the corresponding components of the lighting module described above.

And a light guide portion 13 which is formed on the printed circuit board 12 and laminated on the printed circuit board 12 is formed on the base substrate 11 and the frame 140, May be prepared in advance as a laminate structure before bonding. Hereinafter, the above-described laminated structure is referred to as a light source module.

The frame 140 has a prism shape or a triangular prism shape with an opening 142 passing through from the one surface to the other surface of the opposite side of the major surface of the frame 140. The base substrate 11 covers one side or one end of the opening, 142). The frame 140 may be a housing defining the appearance of the lighting device, or it may be a locking mechanism that engages the vehicle body as a vehicle lamp.

In this embodiment, one end of the opening 142 is positioned in the frame 140, and the second engaging portion 141 is provided at the edge of one surface facing the base substrate 11. The second engaging portion 141 may be provided as a recessed portion or a concave uneven portion formed by cutting a part of the frame 140 at one edge of the frame 140. That is, the second coupling portion 141 has a structure that is engaged with the first coupling portion 111 in a fitting manner. The base substrate 11 can be firmly fixed to the frame 140 by such a fitting structure.

3) is provided between the first engaging portion 111 and the second engaging portion 141 when the light source module is mounted and the base substrate 11 and the frame 140 are engaged with each other. Can be disposed. When the joining member is used, the base substrate 11 can be reliably integrated with one end of the frame 140, thereby improving durability and reliability in the joining structure.

FIGS. 3 and 4 are perspective views for explaining an assembling process of the illumination device of FIG. 2. FIG.

First, as shown in Fig. 3, a printed circuit board 12 equipped with a predetermined wiring and a pad portion is prepared, and an LED element is soldered to a pad portion as a light source to mount a light source on a printed circuit board.

Next, a light guide unit 13 having a predetermined thickness is formed on the printed circuit board 12 using a resin so that the light source is embedded, thereby preparing a light source module.

Next, the light source module is disposed on the second surface of the base substrate 11. At this time, the base substrate 11 has the first engaging portion 111 on its side surface.

A frame 140 separately prepared to have the second engaging portion 141 and the opening 142 is disposed on the base substrate 11 and the second engaging portion 141 And the first engaging portion 111 of the base substrate 11 are engaged with each other, the base substrate 11 is inserted into one end of the opening portion 142. In order to stably engage the first engaging portion 111 and the second engaging portion 141, the first engaging portion 111 protrudes slightly from the outer surface of the frame 140 through the second engaging portion 141 . According to the above-described configuration, it is possible to provide an illumination device that surrounds a light source with a frame 140 and emits light of a light source in one direction.

4, the first coupling portion 111 and the second coupling portion are rigidly coupled to each other in a fitting manner, and the light source module (not shown) on the second surface of the base substrate 11 It is possible to provide an illuminating device in which the opening 13a is located in the opening of the frame 140, that is, the inner space through one end of the opening 142.

Such a lighting device may be useful for a vehicle lamp, particularly a headlight or a rear combination lamp. The rear combination lamp may be referred to as a tail & stop lamp.

Fig. 5 is a cross-sectional view for explaining a flexible lighting structure employable in the lighting module of Fig. 1 or the lighting device of Fig. 2;

5, a lighting apparatus according to the present embodiment includes a printed circuit board 12, a light source 201, a reflection layer 202, a reflection pattern 203, a resin layer 204, an optical pattern layer, A spacer 208, a spacing region 209, a support 210, and a power supply 220. Here, the resin layer 204 corresponds to the light guide portion 13 described above.

The printed circuit board, the light source 201, and the resin layer 204 are substantially the same as those of the illumination module of Fig. 1 or the illumination device of Figs. 2 to 4, so that detailed description thereof will be omitted.

The reflective layer 202 is disposed between the printed circuit board 12 and the resin layer 204 except for the region where the light source 201 is disposed. The reflective layer 202 reflects the light from the light source 201 to the first surface side of the resin layer 204 toward the diffusion plate 208 side on the second surface of the resin layer 204.

As the material of the reflective layer 202, a synthetic resin that disperses and contains a white pigment excellent in light reflection characteristics can be used. As the white pigment, titanium oxide, aluminum oxide, zinc oxide, carbonate, barium sulfate, calcium carbonate and the like can be used. As the synthetic resin raw material, polyethylene terephthalate, polyethylene naphthalate, acrylic, polycarbonate, polystyrene, polyolefin, Ozone acetate, ozone acetate, weather-resistant vinyl chloride, and the like may be used, but the present invention is not limited thereto. Also, the reflective layer 202 may be formed of silver (Ag), aluminum (Al), stainless steel, or the like.

The reflective pattern 203 is provided on the reflective layer 202 to emit light from the light source 201 and enhance the reflection efficiency of the reflective layer 202. The reflection pattern 203 is disposed around the light source 201 so as to be adjacent to the light exit surface of the light source 201 for efficient dispersion of light.

The reflective pattern 203 may be embodied in a pattern printed on the reflective layer 202 with an ink containing a light reflective material. As a material for the reflective pattern 203, such as, but a material of the reflective layer 202 may be used, but it is not limited to, TiO _2, CaCO _3, BaSO _4, Al ₂ O _3, Silicon, PS (Poly Stylen) A light reflecting material can be used.

The optical pattern layer is disposed on a second side of the resin layer 204 opposite the first side. The optical pattern layer may be in close contact with the second side of the resin layer 204. The optical pattern layer has a first film base 205, a second film base 206, and a light shielding pattern 207 therebetween.

The light shielding pattern 207 is for preventing a visual hot spot from being generated in the vicinity of the light emitting surface of the light source 201. The light shielding pattern 207 is disposed on the second surface of the resin layer 204 so as to cover a predetermined portion of the resin layer 204 by a predetermined width along the optical path from the light exit surface of the light source.

The light shielding pattern 207 may be formed of a first light shielding ink containing at least one selected from TiO ₂ , CaCO ₃ , BaSO ₄ , Al ₂ O ₃ and silicon, and a first light shielding ink containing aluminum (Al) or aluminum and titanium dioxide (TiO ₂ ) And the second light blocking ink including the mixed material.

As the material of the first film base 205 and the second film base 206, PET (Polyethylene Terephthalate) or PES (Poly Ether Sulfones) may be used. By using such a material, the adhesion force between the resin layer 204 and the first film base 205 can be improved. That is, when the silicone-based resin layer 204 is bonded to the first film base 205 of PET or PES, the difference in work function between the thermosetting resin layer and the film substrate increases, thereby increasing the adhesion.

In this embodiment, the optical pattern layer is formed using the first film substrate, the second film substrate, and the light shielding pattern. However, the present invention is not limited to this structure, and may be realized by a single film substrate and a light shielding pattern disposed on one surface thereof. It is preferable that the shielding pattern is disposed between the film substrate and the resin layer 204 in order to protect the shielding pattern.

The diffusing plate 208 is disposed on the optical pattern layer or the light shielding pattern 207 to emit the spacing region 209. The diffuser plate 208 scatters light emitted from the resin layer 204 and diffuses over the entire light output surface to generate plane light. The diffusion plate 208 may be made of a translucent plastic such as transparent acrylic (PMMA), polycarbonate (PC), or the like, and may include a single layer type or a multilayer type, and may include an organic or inorganic diffusing agent.

The spacing region 209 may be an air layer or a vacuum layer. Such a spacing region 209 may refract and scatter light traveling through the optical pattern layer to the diffuser plate 208 to increase the planar light generating capability of the diffuser plate 208. In order to realize an efficient performance, the spacing of the spacing regions 209 is provided so as to have a spacing of 10 mu m or less between the optical pattern layer and the diffuser plate 208. [ If the spacing of the spacing regions 209 exceeds 10 mu m, the brightness of light that passes through the diffuser plate 208 in the illuminating device and shines may sharply decrease.

The support 210 supports a printed circuit board 12, a light source 201, a reflective layer 202, a resin layer 204, an optical pattern layer, a diffuser plate 208, a spacing region 209, . The support 210 may be at least a portion of a housing or frame of a lighting device. The support portion 210 may be formed of a hard metallic material or a composite material, and an insulating layer may be disposed on the surface thereof.

The power supply unit 220 supplies power or a control signal to the light source 201. The power supply unit 220 may be connected to the light source 201 through a wiring or a pad of the printed circuit board 12. The power supply unit 220 may include a vehicle controller or a vehicle battery connected to the vehicle controller. When using a vehicle battery, the lighting device is embodied as a vehicle lamp and connected to the vehicle battery, and can be operated by the power source of the vehicle battery. The vehicle lamp may be a rear combination lamp (RCL) or a head lamp (Front Lamp).

According to this embodiment, it is possible to provide a vehicle lamp, particularly a rear lighting device, which has the advantages of flexibility, high heat resistance, high durability, high reliability and low cost by improving the fixing structure of the lighting module using resin for the light guide .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Those skilled in the art will appreciate that many suitable modifications and variations are possible in light of the present invention. Accordingly, all such modifications and variations as fall within the scope of the present invention should be considered.

11: base substrate
12: printed circuit board
13: Light guide portion
13a: Light source module
14:
15:
140: frame
201: Light source
210: Support
220:

Claims (10)

A printed circuit board having a first surface, a second surface that is an opposite surface of the first surface, and a first A side connecting the first surface and the second surface, the first A coupling portion protruding from the first A side, Board;
A light source mounted on the printed circuit board; And
A first surface side, a second side surface, a first B side surface between the first surface and the second surface, and a second B side surface protruding from the first B side surface, A light guide part having a first B engaging part to be laminated on the first A coupling part;
≪ / RTI > The method according to claim 1,
Further comprising a fixing part having a second coupling part for coupling with the first coupling part, which is a laminated structure of the first A coupling part and the first B coupling part, and supports the printed circuit board and the light guide part. The method of claim 2,
Wherein the fixing portion is a frame or a housing of the lighting device. The method of claim 2,
And a joining member between the first engagement portion and the second engagement portion. A base plate having a first surface, a second surface that is an opposite surface of the first surface, and a first surface that connects the first surface and the second surface and that protrudes from the first surface; ;
A printed circuit board disposed on the base substrate;
A light guide portion disposed on the printed circuit board;
A light source mounted on the printed circuit board and embedded by the light guide; And
A frame having a second coupling part for coupling with the first coupling part and surrounding the light source to emit light of the light source in one direction;
. The method of claim 5,
Wherein the first engaging portion and the second engaging portion are fitted to each other. The method of claim 6,
And a joining member between the first engagement portion and the second engagement portion. The method of claim 6,
Wherein the base substrate covers one end of the inner space of the frame and is inserted into one end of the frame. The method of claim 5,
A reflective layer between the printed circuit board and the light guide;
An optical pattern layer on the light guide portion; And
A diffusion plate on the optical pattern layer;
≪ / RTI > A lighting module according to any one of claims 1 to 9; And
A power source connected to the light source of the lighting module to control the operation of the light source;
≪ / RTI >

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