Light-emitting sign board having improved frame

Abstract

The purpose of the present invention is to provide a light-emitting sign board having an improved frame, the light-emitting sign board comprising: a panel part for displaying road sign information through an LED light source; and a housing installed on the panel part and fixed to a support, wherein the housing comprises: a first polygonal frame installed in front of the panel part and comprising a plurality of subframes; a second polygonal frame which is installed behind the panel part, comprises a plurality of subframes, and is coupled to the first frame; and a frame connection member inserted into each corner portion of the first frame and the second frame to reinforce same.

Description

Illuminated signs with improved frames

[0001] The present invention relates to a luminous signboard having an improved frame, and more particularly, to a luminous signboard having an improved frame capable of preventing moisture from penetrating into the interior of the signboard.

[0002] There are many road signs installed on the road to provide information about the road to help drivers drive safely.

[0003] Road signs display minimum and maximum speed information, protected area information, and milestones in the form of pictures or text, allowing drivers to quickly and accurately recognize information while driving.

[0004] These road signs are very important for drivers to be able to see them quickly and accurately, as they alert drivers and help prevent accidents.

[0005] Accordingly, technologies are being developed to improve visibility by attaching reflective sheets to the front of signs or installing lights inside.

[0006] However, there is a problem that rainwater seeps into the inside of the sign during heavy rain, causing the LED module installed inside to malfunction.

[0007] The present invention aims to provide a luminous signboard having an improved frame capable of blocking moisture from entering the interior of the housing.

[0008] The purpose of the present invention is not limited thereto, and other purposes not mentioned will be clearly understood by those skilled in the art from the description below.

[0009] According to one embodiment of the present invention, a luminous signboard having an improved frame includes a panel portion that guides road sign content through an LED light source, and a housing that is installed on the panel portion and fixed to a support. According to one embodiment of the present invention, a luminous signboard having an improved frame includes a panel portion that guides road sign content through an LED light source, and a housing that is installed on the panel portion and fixed to a support. The housing may include a polygonal first frame that is installed in front of the panel portion and is composed of a plurality of subframes, a polygonal second frame that is installed in the rear of the panel portion and is composed of a plurality of subframes and is connected to the first frame, and a frame connecting member that is inserted into each corner of the first frame and the second frame to reinforce it.

[0010] In addition, the first frame includes a first side support portion that supports a side surface of the panel portion and a front support portion that is vertically connected to the first side support portion and supports a front portion of the panel portion, and the second frame includes a second side support portion that supports a side surface of the panel portion and a rear support portion that is vertically connected to the second side support portion and supports a rear portion of the panel portion, and the first side support portion can be coupled such that an inner side thereof is in contact with an outer side of the second side support portion.

[0011] In addition, the front support portion and the rear support portion are formed with a pair of first guide rails and second guide rails that protrude inwardly, respectively, and the first guide rail and the second guide rail include a bent portion that extends in a direction facing each other at the end portion, and the frame connecting member can be inserted into the guide rail of the subframe with both ends adjacent.

[0012] Additionally, the first guide rail and the second guide rail are formed in positions that do not overlap each other in the front-rear direction, and the first guide rail can be positioned further outward than the second guide rail.

[0013] Additionally, the first guide rail can be arranged so that the inner rail contacts the outer rail of the second guide rail.

[0014] Additionally, the first side support member and the second side support member can be joined by forming a plurality of perforations at overlapping positions and inserting a frame fixing member into the perforations.

[0015] In addition, the frame connecting member can be fixed to the first frame and the second frame by forming a plurality of perforations in the front-rear direction and inserting a frame fixing member into the perforations.

[0016] In addition, the housing further includes a moisture-proof member to prevent moisture from penetrating into the interior, and the rear support portion may have a moisture-proof groove formed inwardly, into which a moisture-proof member is inserted, at a position adjacent to the second side support portion.

[0017] In addition, the panel part may include a panel body coupled to the rear of the second frame and having a light-reflective film provided on the front, a reflective panel coupled to the front of the first frame and including road sign content and reflecting light irradiated by a vehicle lamp, an LED module irradiating light, a light guide plate disposed between the panel body and the reflective panel, having a reflective sheet provided on the rear, and including an insertion groove into which the LED module is inserted, and a light diffusion plate provided between the reflective panel and the light guide plate to diffuse light dispersed by the light guide plate.

[0018] According to a luminous signboard having an improved frame according to one embodiment of the present invention, a soft moisture-proof material between the housings prevents moisture from entering the interior, thereby enabling the safe use of a light source provided inside.

[0019] The effects of the present invention are not limited to the effects described above, and effects not mentioned can be clearly understood by a person skilled in the art to which the present invention pertains from this specification and the attached drawings.

[0020] FIG. 1 is a perspective view showing a luminous signboard having an improved frame according to one embodiment of the present invention.

[0021] FIG. 2 is an exploded perspective view of a luminous signboard having an improved frame according to one embodiment of the present invention.

[0022] FIG. 3 is a cross-sectional view of a light guide plate and an LED module according to another embodiment of the present invention.

[0023] Figure 4 is a rear view schematically showing the first frame included in Figure 2.

[0024] Figure 5 is a cross-sectional view of the first frame included in Figure 2.

[0025] Figure 6 is an enlarged view of a portion of the first frame included in Figure 2.

[0026] Fig. 7 is a cross-sectional view of the second frame included in Fig. 2.

[0027] Figure 8 is a drawing showing the first frame and the second frame included in Figure 2 being combined.

[0028] The embodiments described in this specification and the configurations illustrated in the drawings are merely preferred examples of the disclosed invention, and there may be various modified examples that can replace the embodiments and drawings of this specification at the time of filing of this application.

[0029] The same reference numbers or symbols used in each drawing of this specification represent parts or components that perform substantially the same functions. The shapes and sizes of elements in the drawings may be exaggerated for clarity.

[0030] The terminology used herein is for the purpose of describing embodiments and is not intended to limit and / or restrict the disclosed invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this specification, the terms "comprises" or "has" and the like are intended to indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0031] While terms including ordinal numbers, such as "first," "second," etc., used herein may be used to describe various components, the components are not limited by these terms, and these terms are used solely to distinguish one component from another. For example, without departing from the scope of the present invention, a first component could be referred to as a second component, and similarly, a second component could also be referred to as a first component.

[0032] Hereinafter, a luminous signboard having an improved frame according to one embodiment of the present invention will be described in detail.

[0033] FIG. 1 is a perspective view showing a luminous signboard having an improved frame according to one embodiment of the present invention, FIG. 2 is an exploded perspective view showing an embodiment of a luminous signboard having an improved frame according to one embodiment of the present invention, FIG. 3 is a cross-sectional view of a light guide plate and an LED module according to the present invention, and FIG. 4 is a rear view schematically showing a first frame included in FIG. 2.

[0034] Referring to FIGS. 1 to 4, the luminous sign (10) having an improved frame may be formed in a polygonal shape. For example, the luminous sign (10) having an improved frame may be formed in a square or octagonal shape. The luminous sign (10) having an improved frame includes a panel portion (100) and a housing (200).

[0035] Hereinafter, a luminous signboard (10) having an improved frame is described as having a square shape.

[0036] The panel portion (100) may be provided as a guide plate indicating road information. The panel portion (100) may include a reflective panel (110), a panel body (120), an LED module (140), a light guide plate (130), and a light diffusion plate (150). The reflective panel (110), the panel body (120), the light guide plate (130), and the light diffusion plate (150) may be arranged so that their respective surfaces are parallel.

[0037] A reflective panel (110) is installed at the front to provide road information to drivers or pedestrians using guidance signs. The rear portion of the reflective panel (110) may be coupled to the housing (200). The reflective panel (110) may be coupled parallel to the front of the housing (200). The reflective panel (110) is arranged in front of the first frame (220) described below to block the opening of the first frame (220). The reflective panel (110) may have a reflective sheet arranged to reflect light irradiated to the front.

[0038] Hereinafter, the direction in which a luminous sign with an improved frame provides road information is defined as front or forward, and the opposite direction is defined as rear or backward.

[0039] The reflective panel (110) may be formed with a guide symbol hole (112) in the shape of a guide symbol. A plurality of guide symbol holes (112) may be formed. The guide symbol holes (112) may be implemented in any desired shape. For example, the guide symbol holes (112) may be implemented in the shape of a milestone, a number, an arrow, etc.

[0040] The panel body (120) may have a front portion coupled to the housing (200). The panel body (120) may be coupled in parallel to the rear surface of the housing (200). The panel body (120) is positioned at the rear surface of the second frame (240) described below to block the opening of the second frame (240). The panel body (120) may support the LED module (140) and the light guide plate (130). The panel body (120) may be coupled to the housing (200) to provide support to at least one of the LED module (140), the light guide plate (130), and the light diffusion plate (150).

[0041] The light guide plate (130) is provided on the front surface of the panel body (120). The light guide plate (130) may be supported by the panel body (120). The light guide plate (130) may be bonded to the panel body (120) using an adhesive. The light guide plate (130) may be formed entirely of a transparent material. For example, the light guide plate (130) may be formed of an acrylic material.

[0042] The light guide plate (130) can evenly disperse the light emitted by the LED module (140). Specifically, the light guide plate (130) has a fine pattern engraved on its surface, thereby dispersing the emitted light. The light guide plate (130) can be positioned in the direction in which the LED module (140), described below, emitted light.

[0043] A reflective sheet (132) is provided between the light guide plate (130) and the panel body (120) at a position corresponding to the guide symbol hole (112) so as to reflect light emitted by the LED module (140) or light emitted by the headlights of the vehicle. At this time, the reflective sheet (132) may be attached to the rear of the light guide plate (130) between the light guide plate (130) and the panel body (120).

[0044] The light guide plate (130) may include an insertion groove (134) in the outer region. The insertion groove (134) may be formed at a position adjacent to the outer side of the light guide plate (130). The insertion grooves (134) may be provided in multiple numbers and formed on four sides along the periphery of the light guide plate (130). The multiple insertion grooves (134) may be formed such that both ends are connected to each other. At this time, the LED module (140) may be arranged in all or part of the multiple insertion grooves (134) or at a position adjacent to the reflective sheet (132) to irradiate light in an inward direction of the light guide plate (130).

[0045] The LED module (140) is installed in the insertion groove (134) of the light guide plate (130) and can irradiate light toward the inner surface of the light guide plate (130).

[0046] The LED module (140) includes multiple light sources. The LED module (140) may be implemented in a form in which multiple LEDs (Light Emitting Diodes) are connected. The LED modules (140) may be provided in multiple numbers and may be arranged on at least one of the four sides of the light guide plate (130). If two or more LED modules (140) are provided, they may be arranged in positions facing each other. For example, the LED modules (140) may be arranged on the upper and lower surfaces or left and right sides of the light guide plate (130).

[0047] According to this, the entire interior of the light guide plate (130) can be brightened by the LED module (140) irradiating light in the inward direction of the light guide plate (130). That is, as light is irradiated in the inward direction of the light guide plate (130), the entire luminous sign (10) with the improved frame can be illuminated.

[0048] In the above-described example, the LED module (140) is described as being arranged on any surface of the perimeter of the light guide plate (130), but the LED module (140) according to another embodiment of the present invention may be arranged only at a position adjacent to the reflective sheet (132) on the perimeter of the light guide plate (130). That is, it may be arranged at a position corresponding to a certain area of ​​one surface of the light guide plate (130).

[0049] According to one embodiment, the LED module (140) may be implemented in a flexible form and may be implemented as a single configuration even if it is provided on multiple surfaces of the light guide plate (130). For example, if the LED module (140) is arranged in a portion of the upper right side of the light guide plate (130) and a portion of the upper left side of the light guide plate (130) in consideration of the position of the reflective sheet (132), a single LED module (140) may be implemented in a flexible form instead of two LED modules (140) being arranged on the upper right side of the upper surface and the upper left side.

[0050] The light diffusion plate (150) may be placed on the front of the light guide plate (130). The light diffusion plate (150) may be supported by the light guide plate (130) or the reflective panel (110). For example, the front of the light diffusion plate (150) may be bonded to the back of the reflective panel (110) using an adhesive.

[0051] The light diffusion plate (150) redistributes the light dispersed by the light guide plate (130). Specifically, the light diffusion plate (150) can evenly disperse the light emitted from the light guide plate (130) to evenly diffuse the light throughout the entire luminous sign (10) having an improved frame.

[0052] According to this, the light diffusion plate (150) has the effect of reducing glare to drivers or pedestrians looking at the sign by redistributing the light irradiated by the light guide plate (130) to maintain a constant brightness regardless of the viewing angle.

[0053] The housing (200) can be installed on the panel portion (100) and fixed to various types of supports (S). The housing (200) can be formed to a size corresponding to the side surface of the panel portion (100). The housing (200) can be installed along the perimeter of the panel portion (100). The housing (200) can reinforce the side surface of the panel portion (100). The housing (200) can be formed of a metal material having high strength and resistance to corrosion. For example, the housing (200) can be formed of aluminum.

[0054] The housing (200) may include a first frame (220), a second frame (240), and a frame connecting member (260).

[0055] The first frame (220) can support the rear and side surfaces of the reflective panel (110). The first frame (220) can be formed with a hollow space on the inside and installed along the perimeter of the reflective panel (110). The first frame (220) can be formed by combining a plurality of first sub-frames (220a, 220b, 220c, 220d).

[0056] The second frame (240) can support the front and side surfaces of the panel body (120). The second frame (240) has a hollow space formed on the inside and can be installed along the perimeter of the panel body (120). The second frame (240) is combined with the first frame (220). Specifically, the second frame (240) can be inserted into the inside of the first frame (220) and combined. The second frame (240) can be combined with the first frame (220), the reflective panel (110), and the panel body (120) to form an internal space (A). The second frame (240) can be formed by combining a plurality of second sub-frames (240a, 240b, 240c, 240d). The second sub-frame (240a, 240b, 240c, 240d) can be formed in a number corresponding to the first sub-frame (220a, 220b, 220c, 220d).

[0057] The frame connecting member (260) can be joined to the corners of the first frame (220) and the second frame (240) to reinforce the strength of the first frame (220) and the second frame (240). Specifically, the frame connecting member (260) can be joined to adjacent two frames among the first sub-frames (220a, 220b, 220c, 220d) and the second sub-frames (240a, 240b, 240c, 240d) to reinforce the strength.

[0058] FIG. 5 is a cross-sectional view of the first frame included in FIG. 2, FIG. 6 is an enlarged view of a portion of the first frame included in FIG. 2, FIG. 7 is a cross-sectional view of the second frame included in FIG. 2, and FIG. 8 is a drawing showing the first frame and the second frame included in FIG. 2 being combined.

[0059] Referring to FIGS. 5 to 8, the first frame (220) includes a first side support member (222) and a front support member (224).

[0060] The first side support member (222) can support the side of the reflective panel (110). The first side support member (222) can be provided to contact the periphery of the reflective panel (110).

[0061] The front support member (224) can be vertically connected to the first side support member (222) on the inside of the first side support member (222). A reflective panel (110) can be installed on the front of the front support member (224). The front of the front support member (224) can be bonded to the back of the reflective panel (110) using an adhesive.

[0062] Here, the front of the front support member (224) is defined as the direction in which it is combined with the reflective panel (110), and the rear is defined as the direction facing the rear support member (244) (inward direction).

[0063] The front support member (224) may have a first guide rail (226) formed at the rear. The first guide rail (226) is formed to connect a plurality of first sub-frames (220a, 220b, 220c, 220d) by inserting and fixing a frame connecting member (260). The first guide rail (226) may be formed as a pair of rails (226a, 226c) that are horizontal in the longitudinal direction. The first guide rail (226) may have a bent portion (226b) formed that extends in a direction facing each other from the ends of the pair of rails (226a, 226c). The bent portion (226b) prevents the frame connecting member (260) from being separated in the front-rear direction. The gap between a pair of bending portions (226b) can be formed narrower than the thickness of the frame connecting member (260) inserted into the first guide rail (226).

[0064] At this time, the frame connecting member (260) has a through hole (262) formed in the front-back direction at a position between a pair of bending portions (226b), and a frame fixing member (264) can be inserted into the through hole (262) and fixed to the first guide rail (226). The through hole (262) can be formed in multiple numbers. For example, the through hole (262) can have screw threads formed on the inside, and the frame fixing member (264) can be provided as a bolt.

[0065] According to the above-described example, when a frame connecting member (260) is inserted into the first guide rail (226) of a pair of subframes to connect a plurality of first subframes (220a, 220b, 220c, 220d), a problem occurs in which the corners of two adjacent frames are connected in a warped state due to a size error between the inner space of the first guide rail (226) and the frame connecting member (260).

[0066] To prevent this, as illustrated in FIG. 6, the front support member (224) may have a position correction groove (225) formed on the rear side. Specifically, the front support member (224) may have a position correction groove (225) formed along the length direction from the center of a pair of bending portions (226b) on the rear side. The position correction groove (225) may guide the end of the frame fixing member (264) inserted into the through hole (262) of the frame connecting member (260) to the exact center of the first guide rail (226).

[0067] According to this, the frame connecting member (260) can be fixed in place on the inside of the first guide rail (226), so that when combining a plurality of first sub-frames (220a, 220b, 220c, 220d), there is an effect of minimizing the error between corners and enabling the combination.

[0068] In the above-described example, the position correction groove (225) is described as being formed in the front support portion (224), but it is of course possible to form it in the rear support portion (244) described later.

[0069] Referring to FIG. 7, the second frame (240) includes a second side support member (242) and a rear support member (244).

[0070] The second side support member (242) can support the side surface of the panel body (120). The second side support member (242) can be provided so as to be in contact with the periphery of the panel body (120). The second side support member (242) can be arranged so that the outer surface thereof is in contact with the inner surface of the first side support member (222). At this time, the first side support member (222) and the second side support member (242) can be combined with the frame fixing member (202) by forming perforations (220a, 240a) at overlapping positions. The perforations (220a, 240a) can be formed in multiple numbers. For example, the perforated hole (220a, 240a) has screw threads formed on the inside and the frame fixing member (202) is provided with a bolt so that the frame fixing member (202) can be inserted into the perforated hole (220a, 240a) to maintain the first side support member (222) and the second side support member (242) in a combined state.

[0071] The rear support member (244) can be vertically connected to the second side support member (242) on the inner side of the second side support member (242). The rear support member (244) can have a panel body (120) installed on the rear side. The rear support member (244) can be bonded to the panel body (120) using an adhesive.

[0072] Here, the front of the rear support part (244) is defined as the direction facing the front support part (224) (inward direction), and the rear of the rear support part (244) is defined as the direction combined with the panel body (120).

[0073] The rear support member (244) may have a second guide rail (246) formed on the front. The shape and function of the second guide rail (246) are the same as those of the first guide rail (226) described above, so a description thereof will be omitted below.

[0074] The first guide rail (226) and the second guide rail (246) may be formed in positions where they do not overlap each other in the front-back direction to minimize the thickness when the first frame (220) and the second frame (240) are combined. For example, the distance between the first guide rail (226) and the first side support member (222) may be formed closer than the distance between the second guide rail (246) and the second side support member (242).

[0075] Additionally, when the first frame (220) and the second frame (240) are combined, the inner rail (226c) of the first guide rail (226) can be formed to contact the outer rail (246a) of the second guide rail (246).

[0076] Additionally, the inner rail (246b) of the second guide rail (246) is formed at the same height as the front support member (224) and can support the side surfaces of the light guide plate (130) and the light diffusion plate (150).

[0077] According to one embodiment of the present invention described above, when heavy rain occurs, moisture flows in between the contact surfaces of the first frame (220) and the second frame (240), causing the electronic device inside the housing (200) to malfunction.

[0078] To prevent this, the housing (200) may be provided with a moisture-proof member (280) between the first frame (220) and the second frame (240) to prevent moisture from penetrating. The moisture-proof member (280) may be formed of an elastic material. For example, the moisture-proof member (280) may be formed of a cylindrical rubber or silicone material.

[0079] The moisture-proof member (280) can be combined with the second frame (240). Specifically, the rear support member (244) has a moisture-proof groove (248) formed on the front side into which the moisture-proof member (280) is inserted. Accordingly, the rear support member (244) can be formed so that a portion of the rear side protrudes rearward by the depth of the moisture-proof groove (248). The moisture-proof groove (248) can be formed with a curved inner surface to minimize damage to the soft moisture-proof member (280).

[0080] At this time, a contact portion (228) may be formed in the front support portion (224) at a position overlapping the moisture-proof member (280) so that the moisture-proof member (280) and the first frame (220) are in contact. The contact portion (228) may be formed to protrude horizontally from the front support portion (224). Specifically, the contact portion (228) may be formed to protrude from the other side of the bend portion (226b) in the outer rail (226a) of the first guide rail (226).

[0081] As described above, according to one embodiment of the present invention, a moisture-proof member (280) is provided between the first frame (220) and the second frame (240) to prevent moisture from penetrating, and when the first frame (220) is coupled to the second frame (240), the sealing portion (228) is in contact with the moisture-proof member (280), thereby having the effect of preventing moisture from penetrating into the interior of the housing (200).

[0082] In addition, the sealing member (228) blocks the opening of the moisture-proof groove (248), which has the effect of preventing the moisture-proof member (280) from being separated from the moisture-proof groove (248) when vibration occurs.

[0083] Although all components constituting the embodiments of the present invention have been described above as being combined or operating in combination, the present invention is not necessarily limited to these embodiments. That is, within the scope of the purpose of the present invention, all components may be selectively combined and operated one or more times. In addition, terms such as "include," "comprise," or "have" described above, unless specifically stated to the contrary, mean that the corresponding component may be inherent, and therefore should be interpreted as including other components rather than excluding other components. All terms, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the art to which the present invention pertains, unless otherwise defined. Commonly used terms, such as terms defined in a dictionary, should be interpreted as being consistent with the contextual meaning of the related technology, and shall not be interpreted in an ideal or overly formal sense, unless explicitly defined in the present invention.

[0084] The above description is merely an illustrative description of the technical idea of ​​the present invention, and those skilled in the art will appreciate that various modifications and variations may be made without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of ​​the present invention, but rather to explain it, and the scope of the technical idea of ​​the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.

Claims

1. In a luminous sign displaying road information, A panel section that provides road sign information through an LED light source; and Includes a housing installed on the above panel and fixed to the support, The above housing, A polygonal first frame installed in front of the above panel portion and composed of a plurality of subframes; A polygonal second frame installed at the rear of the panel portion, composed of a plurality of subframes, and connected to the first frame; and An improved luminous signboard having a frame including a frame connecting member inserted into each corner of the first frame and the second frame to reinforce the frame.

2. In paragraph 1, The above first frame is, A first side support member supporting the side of the above panel portion; and It includes a front support portion that is vertically connected to the first side support portion and supports a front portion of the panel portion, The above second frame is, A second side support member supporting the side of the above panel portion; and A rear support member is vertically connected to the second side support member and supports a rear portion of the panel member. The above first side support part is, An illuminating sign having an improved frame coupled so that the inner side contacts the outer side of the second side support member.

3. In paragraph 2, The above front support part and the above rear support part, A pair of first and second guide rails are formed, each protruding inwardly, The above first guide rail and the above second guide rail, Includes a bent portion formed to extend in a direction facing each other at the end, The above frame connecting member is, A luminous sign having an improved frame inserted into the guide rail of the subframe with both ends adjacent to each other.

4. In paragraph 3, The above first guide rail and the above second guide rail, They are formed in positions that do not overlap each other in the forward and backward directions, The above first guide rail, A luminous sign having an improved frame positioned outside the second guide rail.

5. In paragraph 4, The above first guide rail, An illuminating sign having an improved frame in which the inner rail is arranged to contact the outer rail of the second guide rail.

6. In paragraph 2, The first side support member and the second side support member are, An improved luminous signboard having a plurality of perforated holes formed at overlapping locations and a frame fixing member inserted into the perforated holes to form a combined frame.

7. In paragraph 1, The above frame connecting member is, A luminous signboard having an improved frame in which a plurality of perforations are formed in the front-back direction and a frame fixing member is inserted into the perforation holes to be fixed to the first frame and the second frame.

8. In paragraph 3, The above housing, It further includes a moisture-proof material to prevent moisture from penetrating into the interior. The above rear support part, An improved luminous signboard having a moisture-proof groove formed inwardly at a position adjacent to the second side support member, into which the moisture-proof member is inserted.

9. In paragraph 1, The above panel part, A panel body coupled to the rear of the second frame and having a light-reflective film on the front; A reflective panel coupled to the front of the first frame, including road sign content, and reflecting light irradiated by a vehicle lamp; LED module that investigates light; A light guide plate disposed between the panel body and the reflective panel, having a reflective sheet on the back, and including an insertion groove into which the LED module is inserted, wherein the light irradiated by the LED module is uniformly distributed; and A luminous signboard having an improved frame including a light diffusion plate provided between the reflective panel and the light guide plate to diffuse light dispersed by the light guide plate.

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