KR20120055795A - Lighting module and lighting apparatus comprising the same - Google Patents

Abstract

PURPOSE: A lighting module and a lighting device including the same are provided to be freely formed into a desired shape according to an installation space by including a connecting member which can be combined with other lighting modules. CONSTITUTION: A case(200) is extruded as into a plate shape. An optical source unit(150) comprises a light emitting device and a driver. A light guide plate(110) emits light emitted from the optical source unit to the outside. A reflector(130) prevents light entering the light guide plate to be emitted to the rear side of the light guide plate. An optical excited film(170) changes the color of the light by changing a part of the wavelength of the light emitted in the optical source unit. A diffusing plate(190) diffuses the light emitted from the light guide plate and emits the light.

Description

LIGHTING MODULE AND LIGHTING APPARATUS COMPRISING THE SAME}

The present invention relates to a lighting module and a lighting device including the same.

In general, a lot of bulbs or fluorescent lights are used as indoor or outdoor lighting, such a bulb or fluorescent lamp has a short life and has to be replaced frequently. In addition, the conventional fluorescent lamp has a problem that excessively decreases the illuminance due to deterioration over the use time.

In order to solve this problem, a light emitting diode (LED), which has excellent controllability, fast response speed, high electro-optical conversion efficiency, long life, low power consumption, high brightness, and emotional lighting, is used. Various types of lighting devices have been developed.

However, since most of the lighting apparatus using the light emitting diode is implemented in a certain form, not only the lighting apparatus can not be arranged as desired according to the structure of the space to be installed, but also comes with design constraints.

Therefore, it is urgent to develop a lighting device that can be implemented in a desired form according to the installation space.

The embodiment provides a lighting device that can be freely implemented in a desired form according to the installation space.

According to an embodiment, a case having a first curved surface and a second curved surface having a length shorter than the first curved surface at a predetermined distance from the first curved surface, disposed inside the case, wherein any one of the first fan shape and the second fan shape is provided. Provided is a lighting module including a light source unit disposed in one, and a light guide plate coupled to the case and emitting light emitted from the light source unit to the outside.

In addition, according to an embodiment, the first case and the second case, the both ends of which are in contact with each other, the light source unit disposed inside the first case and the second case, respectively, and the first case and the second case of which both ends are in contact And a connection member connected to an edge of the first case and the second case, wherein at least one of the first case and the second case has a first curved surface and a second length shorter than the first curved surface. There is provided a lighting device having a curved surface.

According to the embodiment, since the fan-shaped lighting module and a connection member for coupling the lighting module with the other lighting module are provided, a lighting apparatus having a free form can be realized according to the shape of the space to be installed.

1 is a perspective view for explaining the structure of a lighting module according to an embodiment of the present invention.
2 is an exploded perspective view for explaining the structure of a lighting module according to an embodiment of the present invention.
Figure 3 is an embodiment of the present invention, a perspective view for explaining the case structure in detail.
Figure 4 is an embodiment of the present invention, a cross-sectional view for explaining in detail the structure of the case.
5 is an embodiment of the present invention, a perspective view for explaining the structure of the support plate in detail.
Figure 6 is an embodiment of the present invention, a perspective view for explaining the structure of the light source in more detail.
7 is a view for explaining the structure of a light source module according to an embodiment of the present invention.
8 is a view for explaining a coupling structure of the case and the light source unit according to an embodiment of the present invention.
9 is an embodiment of the present invention, a view for explaining the structure and operation principle of the light source module disposed inside the case.
10A and 10B are diagrams for explaining a connection member for coupling a plurality of lighting modules according to an embodiment of the present invention.
11A and 11B illustrate an coupling structure of a plurality of lighting modules according to an embodiment of the present invention.
12A to 12E illustrate an embodiment of various lighting devices in which a plurality of lighting modules are combined, according to an embodiment of the present invention.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view for explaining the structure of a lighting module according to an embodiment of the present invention, Figure 2 is an exploded perspective view for explaining the structure of a lighting module according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention For example, a perspective view for explaining the case structure in detail, Figure 4 is an embodiment of the present invention, a cross-sectional view for explaining the structure of the case in detail, Figure 5 is an embodiment of the present invention, in detail the structure of the support plate 6 is a perspective view for explaining the structure of the light source unit in an embodiment of the present invention in more detail.

1 to 6, the lighting module 400 includes a case 200, a support plate 120, a first light source part 150a, a second light source part 150b, a first light excitation film 170a, and a second light source. The light excitation film 170b, the light guide plate 110, the diffuser plate 190, the reflector plate 130, the first connector 300a, and the second connector 300b are included.

<Case>

The case 200 may be assembled by a plurality of flanges, but is preferably extruded in one plate form. The case 200 has a bow or rainbow shape as a whole. That is, it is formed to have a first curved surface and a second curved surface having a length shorter than the first curved surface at a predetermined distance from the first curved surface. Preferably, the first sector having a first radius and a first center angle may have a shape excluding a second sector having a first radius and a second radius smaller than the first radius. The length of the radius is not limited to a specific length and the first center angle is preferably formed to 90 °.

The case 200 includes a main base portion 210, first and second vertical portions 230a and 230b, and first and second auxiliary base portions 250a and 250b.

The main base portion 210 may be formed in the same shape as the case 200, and may have a depression 211 formed at the center and an edge portion 213 formed at the periphery thereof.

The depression 211 serves to prevent movement by bringing the reflective plate 130, the light guide plate 110, and the diffuser plate 190 into close contact with each other. In particular, the front and rear edges of the main base portion 210, that is, the radial side edges of the edge portion 213 may be formed of a flexible printed circuit (not shown), which is an electrical connection medium between the driving driver and the input terminal. It is possible to form the connection path in the shortest distance to reduce the manufacturing cost as well as to prevent the voltage decrease along the length of the flexible printed circuit.

Of the edge portion 213, the left and right edge portions connected to the first and second vertical portions 230a and 230b, that is, the front and rear edge portions excluding the arc sides of the first fan shape and the second fan shape, The first and second upper openings 213a and 213b are respectively formed in the center thereof.

Input terminals 310a and 310b for supplying power to the driving drivers 153a and 153b are disposed in the first and second upper openings 213a and 213b, respectively. 2 connectors 300a and 300b are disposed in the first and second upper openings 213a and 213b, respectively, and are exposed to the outside of the case 200.

Meanwhile, the front and rear edges of the edge portion 213 are provided with the third and fourth upper openings 213c and 213d, the fifth and the sixth with the first and second upper openings 213a and 213b therebetween. Upper openings 213e and 213f. The third to sixth upper openings 213c, 213d, 213e, and 213f may include a fastening member 700 for coupling between the connection member 600 (see FIGS. 10A and 10B) and the case 200, which will be described later. Is formed. This will be described later. In the above description, the shape in which the depression 211 and the edge portion 213 are distinguished has been described. However, the shape in which the depression 211 is not formed separately may be implemented.

In addition, the main base portion 210 has a flange 215 extending from the front and rear edges, respectively, and the flange 215 is bent substantially perpendicular to the surface of the main base portion 210. . The flange 215 may prevent a structure, for example, a diffusion plate, a light guide plate, a reflecting plate, and the like inserted into the case 200 from being separated in the front and rear directions of the main base part 210.

The first and second vertical portions 230a and 230b extend from edge portions of the main base portion 210, respectively, and bend substantially perpendicularly to the surface of the main base portion 210. When the case 200 has a shape excluding the second sector from the first sector, the first and second vertical portions 230a and 230b form an arc of the first sector and the second sector. The first and second vertical portions 230a and 230b have first and second side openings 230a 'and 230b' at their ends, respectively.

The first and second auxiliary base parts 250a and 250b extend substantially parallel to the surface of the main base part 210 in the first and second vertical parts 230a and 230b, respectively.

As a result, first and second guide grooves 202a and 202b are formed at both inner sides of the case 200, and the first and second auxiliary base parts 250a and 250b face each other at intervals.

Meanwhile, the first and second auxiliary base parts 250a and 250b of the case 200 extend with respect to each of the first and second vertical parts 230a and 230b in a direction parallel to the main base part 210. And bent but preferably inclined at an acute angle (α <90 °) with respect to each of the first and second vertical portions 230a, 230b. Therefore, the structure that is inserted into the first guide grooves 202a and the second guide grooves 202b, for example, the diffusion plate, the light guide plate, the reflecting plate, etc. can be further fixedly supported.

In addition, the first and second auxiliary base parts 250a and 250b have protrusions 250a 'and 250b' extending at ends perpendicular to the extending direction, respectively. The protrusions 250a 'and 250b' are bent vertically with respect to the surfaces of the first and second auxiliary base parts 250a and 250b after the structures are inserted into the case to support the respective structures.

The material of the case 200 may be a conductive metal, for example, a metal such as aluminum or iron, and may have an elastic force.

<Support plate>

The support plate 120 includes a base portion 121, first and second vertical extensions 123a and 123b, and first and second horizontal extensions 125a and 125b, and the support plate 120 includes the case. 200 is disposed inside and in contact with the case.

The base portion 121 has a shape corresponding to the case 200, that is, a shape excluding the second fan shape from the first fan shape.

The first and second vertical extension portions 123a and 123b extend perpendicularly to the surface of the base portion 121 at both ends of the base portion 121, respectively, and the first and second vertical extension portions 123a. , Each end of 123b has openings 123a 'and 123b'.

First and second horizontal extensions 125a and 125b are formed at respective ends of the first and second vertical extensions 123a and 123b at ends of the first and second vertical extensions 123a and 123b, respectively. It extends perpendicularly to each other and has a surface substantially parallel to the base portion 121, respectively. However, when the first and second horizontal extension portions 125a and 125b extend perpendicularly to the surfaces of the first and second vertical extension portions 123a and 123b, the extending direction is left, left, of the base portion 121. Right outward direction.

The material of the support plate 120 having such a structure may be a conductive metal such as aluminum or iron, like the case 200, and may also have an elastic force.

The base part 121 of the support plate 120 is in contact with the recessed part 211 of the main base part 210 of the case 200, and the horizontal extension parts 125a and 125b are the edges of the main base part 210. The support plate 120 may be disposed in the lower side of the main base portion 210 of the case 200 in contact with the seat portion 213. Therefore, the structure to be disposed on the bottom surface of the support plate 120, for example, a structure such as a reflector, a light guide plate, a diffusion plate tube can be more stably supported.

First and second input terminals 310a and 310b are disposed on the front and rear upper surfaces of the base portion 121 of the support plate 120, respectively, and the first and second input terminals 310a and 310b are disposed in the case. Corresponding to the first and second upper openings 213a and 213b of the 200, respectively, is exposed to the outside of the case 200. The first and second input terminals 310a and 310b are electrically connected to the first connector 300a and the second connector 300b, respectively, to supply power.

Meanwhile, the first and second input terminals 310a and 310b are electrically connected to the driving drivers 153a and 153b of the first and second light source units, respectively, through a flexible printed circuit (FPC) (not shown). do. The flexible printed circuit penetrates through the openings 123a 'and 123b' formed in the first and second vertical extensions 123a and 123b of the support plate 120 and is electrically connected to the driving driver 153a at the shortest distance. .

<Light source module-reflector, light guide plate, light source part, diffuser plate, light excitation film>

<Reflex Edition>

The reflector plate 130 includes a body portion 131 having a shape corresponding to the support plate 120, and a bending portion 132 extending from both ends of the body portion 131.

The bending portion 132 may be formed at the left and right ends of the reflecting plate 130, that is, when the case 200 is formed in a shape other than the second fan shape from the first fan shape, substantially in the arcs of the first fan shape and the second fan shape. Bending in the vertical direction. The reflective plate 130 may be coated with a reflective material over its entire surface, and only the body 131 may be coated with a reflective material. In addition, the material of the reflective plate 130 may have a flexible plastic material, unlike the support plate 120.

The reflective plate 130 is disposed below the support plate 120, and the bending portion 132 of the reflective plate 130 contacts the other surface on which the light emitting element is not disposed in the light source unit 150 so that the light guide plate 110, the light source unit 150, The entire diffusion plate 190 and the light excitation film 170 are wrapped. Accordingly, when assembling the components of the lighting module, it is possible to prevent alignment mismatches or departure of a specific component between the components.

In addition, when the bending part 132 of the reflector 130 emits heat generated from the light source parts 150a and 150b through the case 200 during the operation of the lighting module, as shown in FIG. In order to improve the heat transfer effect, it is preferable to include a heat radiation material.

The reflective plate 130 prevents the light emitted from the light source unit 150 from being emitted to the rear of the light guide plate 110 when the light is emitted to the outside through the light guide plate 110.

<Light source part>

The light source unit 150 may include the first light source unit 150a and the second light source unit 150b, but may have only one light source unit.

The first light source unit 150a and the second light source unit 150b include substrates 151a and 151b, light emitting elements 152a and 152b, and driving drivers 153a and 153b, respectively.

The substrates 151a and 151b have a shape that can be inserted into and disposed in the first and second guide grooves 202a and 202b of the case 200. That is, it may be a printed circuit board or a flexible printed circuit board having a streamlined shape, and when coupled to the case 200, may extend in an arc direction of the case 200.

A plurality of light emitting diodes 152a and 152b may be disposed on one surface of the substrates 151a and 151b and arranged in the arc direction of the case 200 in a state in which the case 200 and the light source unit 150 are coupled to each other. It is arrange | positioned on 151a, 151b. The light emitting devices included in the first light source unit 150a and the second light source unit 150b are light emitting diodes that emit light having the same color, but may emit light having different colors. Therefore, a variety of colors can be made of a combination of two different colors can be implemented emotional lighting device. The light emitting diodes 152a and 152b may be light emitting diodes emitting at least one of blue, red, and green light.

Although not shown in the figure, the light emitting diode can emit light having its own color by causing the transparent resin to seal the light emitting diode on top, but when emitting the original color, for example, blue light is emitted. In the case of emitting light emitting diodes, a resin including a yellow phosphor on the top may seal the blue light emitting diode to emit white light.

In the present embodiment, a light emitting diode is used as the light source, but the present invention is not limited thereto, and any light emitting device capable of emitting light can be used.

The driving drivers 153a and 153b are disposed on the other surface of the substrates 151a and 151b where the light emitting diodes 152a and 152b are not disposed, and are preferably disposed at the end portions of the other surfaces of the substrates 151a and 151b.

The first light source unit 150a and the second light source unit 150b may include light emitting devices 152a and 152b disposed on one surface of the substrates 151a and 151b, and driving drivers disposed on the other surfaces of the substrates 151a and 151b, respectively. First and second guide grooves 202a and 202b of the case 200 including 153a and 153b and one surface of the substrates 151a and 151b on which the light emitting diodes 152a and 152b are disposed to face each other. It is inserted and placed in. That is, the other surfaces of the substrates 151a and 151b on which the light emitting diodes 152a and 152b are not disposed are substantially parallel to the surfaces of the first and second vertical portions 230a and 230b of the case 200.

Although not shown in the drawings, a heat radiation pad may be disposed between the first light source unit 150a and the second light source unit 150b and the first and second vertical portions 230a and 230b of the case 200. The heat dissipation pads transfer heat generated from the light source units 150a and 150b to the case 200 through conduction, and the heat may be released to the outside to improve heat dissipation characteristics.

Meanwhile, as shown in FIG. 8, the driving drivers 153a and 153b are inserted into the first and second side openings 230a 'and 230b' of the vertical portions 230a and 230b of the case 200 to insert the case 200. ) Is exposed to the outside. Therefore, it is easy to check when the driving drivers 153a and 153b are malfunctioning, and it is possible to overcome the difficulty of securing the spatial position of the components in the limited space due to the characteristics of the lighting module.

In addition, when the driving drivers 153a and 153b are inserted into and disposed in the first and second side openings 230a 'and 230b' of the vertical parts 230a and 230b, respectively, Preferably, the first and second side openings 230a 'and 230b' are disposed at a distance from the outer circumference d. This is to ensure the withstand voltage characteristics of the driving drivers 153a and 153b when the lighting module is operated, and at least a distance between the outer circumferences of the driving drivers 153a and 153b and the first and second side openings 230a 'and 230b'. When d) is at least 2 mm, it has stable withstand voltage characteristics.

In addition, although not shown, an adhesive protective film is attached to the partitions around the first and second side openings 230a 'and 230b' to protect the driving drivers 153a and 153b. The adhesive protective film may prevent foreign matter from penetrating into the driving driver. The adhesive protective film is preferably a transparent material through which the drive driver can be seen through the adhesive protective film.

<Light Guide Plate>

The light guide plate 110 has a shape except for the second fan shape in the same manner as the shape of the reflector plate 130.

The groove part 112 is formed in the surface of the side end part of the light guide plate 110. The grooves 112 are formed at both sides of the side ends, respectively, and the grooves 112 of the light guide plate 110 each have protrusions of the first and second auxiliary base parts 250a and 250b of the case 200. 250a 'and 250b') are bent and seated. Accordingly, the light guide plate 110 in the case 200 is stably supported so as not to be separated.

The light guide plate 110 converts the point light source into a surface light source, and a specific pattern 111 is formed on one surface of the light guide plate so that light incident therein can be emitted to the outside. The specific pattern 111 diffuses or scatters light and emits light to the outside. The light guide plate 110 may be made of a transparent resin, and may be printed by a silk screen printing method.

The light guide plate 110 is disposed in the direction of the light path emitted from the first light source unit 150a and the second light source unit 150b and is inserted into the case in the longitudinal direction of the case 200, that is, in a fan-shaped arc direction. do. In this case, both ends of the light guide plate 110 are inserted into the first and second seating grooves 202a and 202b of the case 200.

<Light excitation film>

The light excitation film 170 may include a first light excitation film 170a and a second light excitation film 170b, each of which has a light guide plate 110 side surface, a first light source unit 150a, and a second light source unit 150b. Are disposed between each other and include various fluorescent materials therein. The first light excitation film 170a and the second light excitation film 170b may convert a color of light by converting a part of wavelengths of the light emitted from the first light source unit 150a and the second light source unit 150b.

Although not shown in the drawing, the first photoexcitation film 170a and the second photoexcitation film 170b include a transparent resin and a fluorescent material 172 contained in the transparent resin. A curing agent or an additive may be included in the transparent resin, the curing agent cures the transparent resin, and the additive evenly disperses the fluorescent material in the transparent resin. In addition, a diffusion material may be included in the transparent resin, and the diffusion material improves the refractive index of the light source to increase the excitation rate of the fluorescent material.

<Diffusion plate>

The diffusion plate 190 is inserted into the case 200 and disposed under the light guide plate 110 to diffuse and emit light emitted from the light guide plate 110. In this case, both ends of the diffusion plate 190 are inserted into the first and second mounting grooves 202a and 202b of the case 200.

As described above, the lighting module according to the embodiment of the present invention can be used as a lighting device by itself because it consists of one single module in emitting light.

For convenience of description in the above-described embodiment of the present invention, the first light source unit 150a, the second light source unit 150b, the first light excitation film 170a, the second light excitation film 170b, and the light guide plate 110. The device including the diffuser plate 190 and the reflector plate 130 is called a light source module.

9 is an embodiment of the present invention, a view for explaining the structure and operation principle of the light source module disposed in the case 200.

For convenience of description, the light source module 100 represents an embodiment including a light guide plate 110, a reflecting plate 130, a first light source part 150a, a first light excitation film 170a, and a diffusion plate 190. To do that.

As described above, the light guide plate 110 converts the point light source into a surface light source, and is made of a transparent resin, and may be printed by a silkscreen printing method.

The diffusion plate 190 may be disposed on the light guide plate 110. As described above, the diffuser plate 190 serves to allow the light incident into the light guide plate 110 to be evenly emitted to the outside.

The reflective plate 130 is disposed under the light guide plate 110 and prevents light incident into the light guide plate 110 from being emitted to the rear of the light guide plate.

The first light source unit 150a is disposed at a side corresponding to the light guide plate 110, that is, a fan arc. The first light source unit 150a may be any device as long as it can emit light. For example, the first light source unit 150a may include a plurality of light emitting diodes 152a. The first light source unit 150a includes a plurality of light emitting diodes 152a and 152b arranged on the substrate 151a, and is optically coupled to the light guide unit 110 to guide light generated from the first light source unit 150a. It is incident into the part 110.

The first light excitation film 170a is disposed between the light guide part 110 and the first light source part 150a and includes various fluorescent materials therein. The first optical excitation film 170a converts a part of the wavelength of the light emitted from the first light source unit 150a to convert the color of the light.

10A and 10B are views illustrating a configuration of a connection member 600 for coupling a plurality of lighting modules according to an embodiment of the present invention, and FIGS. 11A and 11B are combinations of a plurality of lighting modules according to the present invention. It is a figure for demonstrating a structure.

10A and 10B, the connection member 600 of the present invention may include a base part 610, one or more fastening grooves 620a, 620b, 620c, and 620d and a protrusion 630. have.

Base portion 610 exhibits a circular shape on a top view, ie when coupled to an illumination module. The edge portion may be formed to be inclined outward. Two connection terminals 611a and 611b may be formed on the bottom surface of the base 610, and the two connection terminals 611a and 611b are electrically connected to each other through a wire in the base 610. In addition, the connection terminals 611 and 611b are electrically connected to the connectors 300a and 300b installed at the edge portion 213 of the main base portion 210 of the case 200 as shown in FIGS. 11A and 11B. .

One or more fastening grooves 620a, 620b, 620c, and 620d are formed in the base 610. Although the first to fourth fastening grooves 620a, 620b, 620c, and 620d are illustrated in the drawing, the number of the fastening grooves is not limited thereto. 11A and 11B, the first to fourth fastening grooves 620a, 620b, 620c, and 620d may include third and fourth upper openings formed in the case 200 of two lighting modules coupled to each other. 213c and 213d, and the fifth and sixth upper openings 213e and 213f. The fastening member 700 is inserted into the fastening grooves 620a, 620b, 620c, and 620d. The fastening member 700 includes the fastening grooves 620a, 620b, 620c, and 620d, the third and fourth upper openings 213c and 213d, and the fifth and sixth upper openings 213e and 213f, respectively, of the case 200. Penetrates. For example, one fastening member 700 penetrates the first fastening groove 620a and the third upper opening 213c, and the other fastening member 700 is the second fastening groove 620b and the fourth upper opening. Can penetrate 213d. In addition, another fastening member 700 may pass through the third fastening groove 620c and the fifth upper opening 213e of the other lighting module, and the remaining fastening member 700 may pass through the sixth upper opening 213f. Can be. The fastening member 700 may be a nail form, a screw form, a pin form, or the like, or may be a form in which a female screw and a male screw are combined. One fastening module 700 may be connected to another light module by the fastening member 700. As shown in FIG. 11A, the fan-shaped lighting module 400 according to the embodiment of the present invention may be coupled to each other, and as shown in FIG. 11B, the fan-shaped lighting module 400 according to the embodiment of the present invention. And a bar type lighting module of a conventional type may be combined.

12A to 12E are views showing an actual implementation in the case where a plurality of lighting modules are combined according to an embodiment of the present invention.

12A to 12C, various types of lighting devices may be implemented by appropriately combining a fan-shaped lighting module and a conventional bar type lighting module according to an exemplary embodiment of the present invention.

In addition, as illustrated in FIG. 12D, a donut-shaped lighting device may be obtained by combining four fan-shaped lighting modules having a central angle of 90 ° according to an embodiment of the present invention.

Meanwhile, as illustrated in FIG. 12E, the circular lighting module may be inserted into the center of the donut-shaped lighting apparatus illustrated in FIG. 12D. Accordingly, the shape of the light emitted from the donut-shaped coupling structure and the color of the light emitted from the central circular lighting module may be different from each other.

Features, structures, effects, and the like described in the above embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, and the like illustrated in the embodiments may be combined or modified with respect to other embodiments by those skilled in the art to which the embodiments belong. Therefore, it should be understood that the present invention is not limited to these combinations and modifications.

In addition, the above description has been made with reference to the embodiment, which is merely an example, and is not intended to limit the present invention. Those skilled in the art to which the present invention pertains will be illustrated as above without departing from the essential characteristics of the present embodiment. It will be appreciated that various modifications and applications are possible. For example, each component specifically shown in the embodiment can be modified. And differences relating to such modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.

110: light guide plate
130: reflector
150a: first light source unit
150a: second light source unit
190: diffuser plate
200: case
600: connecting member
620a, 620b, 620c, 620d: fastening groove
700: fastening member
400: lighting module

Claims (6)

A case having a first curved surface and a second curved surface having a length shorter than the first curved surface at a predetermined distance from the first curved surface;
A light source unit disposed inside the case and disposed on any one of the first fan shape and the second fan shape; And
And a light guide plate coupled to the case and configured to emit light emitted from the light source unit to the outside. The method of claim 1,
In this case,
Main base portion; And
A first vertical portion and a second vertical portion formed in the first curved surface and the second curved surface and disposed in a direction perpendicular to the main base portion;
The light source unit includes a lighting module including a plurality of light sources disposed along any one of the first vertical portion and the second vertical portion. The method of claim 1,
The case is a lighting module having a shape other than the second curved surface having a radius smaller than the first curved surface and the second sector having a first center angle in the first sector having a first center angle and the first curved surface. A first case and a second case of which both ends are in contact with each other;
A light source unit disposed in each of the first case and the second case; And
And a connection member connected to edge portions of the first case and the second case, the both ends of which are in contact with each other, to connect the first case and the second case.
At least one of the first case and the second case has a first curved surface and a second curved surface of a length shorter than the first curved surface. The method of claim 4, wherein
The connecting member includes a base portion and two connecting terminals formed on the bottom surface of the base portion,
The two connecting terminals are respectively disposed at the edges of the first case and the second case and connected to the connector electrically connected to the light source unit. The method of claim 4, wherein
The connection member includes a base portion, the base portion is formed with a plurality of fastening grooves,
A plurality of upper openings are formed at edges of the first case and the second case to correspond to the plurality of fastening grooves.
The coupling between the first case and the second case is made by a fastening member for connecting the plurality of fastening grooves and the plurality of upper openings corresponding thereto, respectively.

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