Light-emitting display device

Abstract

To provide a light-emitting display device that, while minimizing a frame that appears on the surface and displaying most of a decorative plane, maintains strength at the time of installation.SOLUTION: Provided is a light-emitting display device (1) equipped with a light source unit (40) that emits light by supplied electric power, comprising: a design plate (11) on which a diagram, a pattern, a symbol or a character decoration or a combination of these is added to the frontmost plane of the light-emitting display device; a light guide plate (13) that guides light of the light source unit in the direction to the front; a frame unit (20) provided with the light source unit and formed so as not to overlap the front of the design plate, for supporting the light-emitting display device; and a fixation unit (23) joined to the reverse side of the light guide plate by joining means, for making joining to the outside possible.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a light-emitting display device that uses an electric light source and displays a surface decorated by printing or the like by emitting light from the light source. [Background technology]

[0002] Light-emitting display devices have been proposed that utilize light from LEDs or other light sources guided by a light guide plate to illuminate and display content printed on the surface. Thin light-emitting sources such as LEDs allow light-emitting display devices to be manufactured thin and lightweight. As a result, light-emitting display devices can be installed on walls or hung from the ceiling.

[0003] For example, Patent Document 1 discloses an invention in which an information display lighting device according to the present invention has a housing that houses a display unit that displays predetermined information, a light guide unit that is adjacent to the back surface of the display unit and has a concave pattern, a convex pattern, or a pattern that combines these to guide diffused light toward the display unit, and a light source unit that is adjacent to the side surface of the light guide unit and has a light source that irradiates light toward the light guide unit, and the housing unit is characterized by comprising a first housing means that fixes and houses the light guide unit and the light source unit, and a second housing means that has one end of a frame equipped with elastic means rotatably engageable with the first housing means and the other end of the frame detachably biases the outer periphery of the display unit to house it.

[0004] For example, Patent Document 2 discloses an invention in which a guidance display device according to the present invention comprises a plurality of light source units each having a light source that emits light, a plurality of display units adjacent to the light source units, which allow light from the light sources of the light source units to enter from the side and emit the light from the main surface, a shading unit provided at least between adjacent light source units and between adjacent display units and which has a shading member that blocks light, and a housing unit provided with a housing that holds the light source units, the display units and the shading units, and the plurality of display units are arranged in a row and display information consisting of letters, figures, symbols or a combination of these. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-158672 [Patent Document 2] Japanese Patent Application Laid-Open No. 2013-3194 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0006] However, real marble, which is widely used in conventional wall materials, does not transmit light. Therefore, when a light-emitting display device for making a stone-carved wall material glow has a marble-like print on its resin surface and is installed on a wall, it is necessary to cover the decorative resin surface with a frame-like housing made of metal or the like to increase its strength before installing it on the wall. Therefore, the picture frame-like frame made of metal or the like interferes with the decoration, and in the case of conventional light-emitting display devices, the design is often lost and the display is uninteresting when installed on a wall.

[0007] In order to solve the above-mentioned problems, the present invention aims to provide a light-emitting display device that minimizes the frame that appears on the surface, allows most of the decorative surface to be displayed, and yet maintains strength when installed. [Means for solving the problem]

[0008] A light-emitting display device including a light source unit that emits light by supplied power, a decorative plate on the front surface of the light-emitting display device, the decorative plate being decorated with a figure, a pattern, a symbol, a letter, or a combination thereof; a light guide plate that guides light from the light source unit toward a front surface; a frame portion that supports the light emitting display device and is provided with the light source portion and is formed so as not to overlap the front surface of the design plate; The light guide plate is characterized by comprising a fixing portion that is joined to the rear surface of the light guide plate by a joining means and that enables joining to the outside. [Effects of the Invention]

[0009] With the above features, in the light-emitting display device of the present invention, the frame portion does not overlap the design portion, so the design appears in the foreground and can be applied in a brilliant manner. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view of an entire light-emitting display device according to an embodiment; [Figure 2] 1 is a front view of a light-emitting display device according to an embodiment; [Figure 3] FIG. 2 is a rear view of the light-emitting display device according to the embodiment. [Figure 4] 1 is a schematic cross-sectional view showing an internal structure of a light-emitting display device according to an embodiment of the present invention; [Figure 5] 3 is a cross-sectional view of the light-emitting display device of the embodiment taken along the line AB shown in FIG. 2. FIG. [Figure 6] 4 is a schematic diagram showing the installation intervals of the mounting portions of the light-emitting display device according to the embodiment. FIG. [Figure 7] 2 is a cross-sectional view of the light-emitting display device according to the embodiment, showing a mounting portion thereof; FIG. [Figure 8] 1 is a schematic diagram illustrating a case where the light-emitting display device according to the embodiment is installed on a wall surface. DETAILED DESCRIPTION OF THE INVENTION

[0011] The light-emitting display device according to the present invention will be described in detail with reference to the drawings. Note that the embodiments and drawings described below are intended to exemplify some of the embodiments of the present invention, and are not intended to limit the scope of the present invention, and may be modified as appropriate within the scope of the present invention.

[0012] <Structure of light-emitting display device> The configuration of the light-emitting display device 1 will be described with reference to Figs. 1 to 7. Fig. 1 is an overall perspective view of the light-emitting display device 1 of the embodiment. Fig. 2 is a front view of the light-emitting display device 1 of the embodiment. Fig. 3 is a rear view of the light-emitting display device 1 of the embodiment. Fig. 4 is a schematic diagram showing a cross-sectional view illustrating the internal structure of the light-emitting display device of the embodiment. Fig. 5 is a cross-sectional view of the light-emitting display device 1 of the embodiment taken along the line AB shown in Fig. 2. Fig. 6 is a schematic diagram showing the installation intervals of the mounting parts of the light-emitting display device 1 of the embodiment. Fig. 7 is a cross-sectional view of the mounting parts of the light-emitting display device 1 of the embodiment taken along the line AB.

[0013] As shown in Figure 1 or 2, the light-emitting display device 1 has a display unit 10 with a decorative panel 11 decorated with figures, patterns, symbols, letters, or a combination of these on the front surface. For example, if the design has a marble-like pattern, it can be installed by leaning it against a wall or the like because it is lightweight, even in places where real marble would be too heavy to place. Furthermore, since the light-emitting display device 1 emits light, it can also display the design brilliantly even at night or in dark places.

[0014] A frame portion 20 is provided around the display portion 10 and is made of metal such as aluminum or stainless steel, or reinforced plastic, etc., to support the light-emitting display device 1. The frame portion 20 has a pair of L-shaped side frames 21 on its side surfaces.

[0015] 1 or 3, the frame section 20 has a pair of L-shaped upper and lower frames 24 on the top and bottom. The frame section 20 also has triangular frame fixing sections 22 at the four corners of the back surface that fix the side frame 21 and the upper and lower frames 24 together with fastening means 27 such as screws or bolts. The frame unit 20 has a fixing frame 23 on the upper back surface, which has the function of fixing the light-emitting display device 1 to the outside and also the function of supporting the frame unit 20 to prevent distortion. The light-emitting display device 1 also has an aluminum composite plate 14 on the rearmost surface, which is made of aluminum or the like and has the function of reflecting light to be guided to the front surface and also serves to reinforce the housing.

[0016] 4 or 5 shows a cross-sectional structure of the light emitting display device 1. From the front of the display unit 10, a design plate 11, a semi-transparent plate 12, a light guide plate 13, and an aluminum composite plate 14 are provided in this order. The light guide plate 13 is made of polymethyl methacrylate resin, but may also be made of polycarbonate, ABS, or other materials that allow light from the light source L incident from the side to be emitted uniformly over the entire surface. The decorative plate 11 and the semi-transparent plate 12 may be made of materials that transmit light. The decorative plate 11 may be decorated with a marble effect by printing. The semi-transparent plate 12 reduces the amount of transmitted light so that reflective dots, reflective lines, and other elements on the light guide plate 13 are not reflected.

[0017] The light source unit 40 is joined to the inner surface 26 of the L-shaped side frame 21 of the frame unit 20 by joining means. The joining means may be adhesive, tape, welding, or the like. The light source unit 40 is provided in the space formed between the light guide plate 13 and the aluminum composite plate 14 and the inner surface 26 of the side frame 21. The light source unit 40 has a light source 42 such as a light-emitting diode mounted on a substrate 41. The light source 42 is located near the center of the side surface of the light guide plate 13.

[0018] In the embodiment of the present invention, an example has been shown in which a plurality of light emitting diodes are used as the light source 42, but the light emitting diode may be a single light emitting diode. The light emitting diode may be a full-color light emitting diode, not just a single color. Furthermore, the light source L is not limited to a light emitting diode, and may be any light emitting light source L such as an organic electroluminescent (EL) light source or a cold cathode fluorescent lamp.

[0019] The side of the milk half plate 12 is joined to the inner surface 26 of the side frame 21. The decorative plate 11 is joined to the end surface of the side frame 21 or the front surface of the milk half plate 12. With the above structure, the decorative plate 11 is formed to cover the end faces of the side frame 21 or the upper and lower frames 24 (Fig. 1), so the frame part 20 is hidden and only the decorative plate 11 is visible on the front. Therefore, since the frame part 20 is not visible, only the design is visible, making it possible to create a dazzling effect.

[0020] 6 or 7 shows the aluminum composite plate 14 at the rearmost side of the light-emitting display device 1, and although it does not penetrate all the way to the decorative plate 11, the semi-transparent plate 12, or the light guide plate 13, a plurality of through holes 16 are provided in the aluminum composite plate 14, and fixing pieces 17 having a rectangular, circular, triangular, polygonal, or other shape are fitted into the holes 16. The fixing pieces 17 are also provided with fixing holes 18 for fastening to the fixing frame 23 with threading means 6 such as screws or bolts. The fixing pieces 17 are also provided with fixing portions 19 for fixing to the light guide plate 13 with the above-mentioned joining means.

[0021] The fixing pieces 17 are located above the center of the light-emitting display device 1, and are arranged in multiple rows and multiple stages. The fixing pieces 17 are arranged at a distance A from the top end of the light-emitting display device 1, and distance A is optimally 110 mm from the top end in consideration of strength. Distance B varies depending on the height of the light-emitting display device 1. For example, using 1400 mm as the standard height for the light-emitting display device 1, if the height is less than 1400 mm, distance B is 300 mm, and if it is 1400 mm or more but 2400 mm or less, distance B is 500 mm. By providing fixing positions above the center of gravity as in the above structure, it is possible to stand the device upright and firmly fix it even without a frame covering the front.

[0022] The arrangement of the fixing pieces 17 varies depending on the overall width W of the light-emitting display device 1, with the center of the width as the reference. The optimum distance C is W / 5, taking strength into consideration. The optimum distance D is W / 3, taking strength into consideration, taking strength into consideration.

[0023] The number of fixing pieces 17 varies depending on the weight and overall width. For example, if the weight is less than 10 kg and the overall width is less than 449 mm, there is one fixing piece 17, and if the weight is between 30 kg and 50 kg and the overall width is less than 1000 mm, there are two rows of fixing pieces 17, as shown in Figure 6. As described above, the light emitting display device 1 can be installed while maintaining its strength by adjusting the number and arrangement of the fixing pieces 17.

[0024] Next, Fig. 8 shows an example of installation in which the light-emitting display device 1 is attached to a lightweight steel frame 3 provided on a wall or the like via a wooden base 7. The receiving part 4 is fixed to the wooden base 7 with a screwing means 8 such as a wood screw. Then, an L-shaped spacer 29 (Fig. 7) below the fixing frame 23 is inserted into the gap 9 between the receiving part 4 and the wooden base 7, thereby fixing the light-emitting display device 1. In the case of a concrete base, the receiving part 4 is fixed to mortar with a decorative panel by means of threading 8 such as a tapping screw. Then, an L-shaped spacer 29 (FIG. 7) is inserted between the receiving part 4 and the wooden base 7 to fix the light-emitting display device 1. As described above, the light emitting display device 1 has the fixing frame 23 fixed to the side frame 21, so that the main body side can be firmly fixed to a wall surface or the like via the fixing frame 23.

[0025] (Technical features) Below, examples of the technical features of this embodiment are shown in parentheses, but these are not particularly limiting and are merely examples, and the effects that can be expected from these features will also be described.

[0026] <First feature> A light-emitting display device (e.g., mainly a light-emitting display device 1) including a light source unit (e.g., a light source unit 40 such as an LED) that emits light by supplied power, A design plate (for example, mainly design plate 11) on the front surface of the light-emitting display device, which is decorated with a figure, pattern, symbol, character, or a combination thereof; a light guide plate (e.g., mainly a light guide plate 13) that guides light from the light source unit toward the front surface; A frame portion (e.g., mainly a frame portion 20) that supports the light emitting display device and is provided with the light source portion and is formed so as not to overlap the front surface of the design plate; The light guide plate is characterized by including a fixing portion (for example, mainly a fixing frame 23) that is joined to the rear surface of the light guide plate by a joining means and that enables joining to the outside.

[0027] With the above features, in the light-emitting display device of the present invention, the frame portion does not overlap the design portion, so the design appears in the foreground and can be applied in a brilliant manner.

[0028] <Second feature> The light guide plate is characterized in that it has a notch (e.g., mainly a hole 16) in a fixing plate (e.g., mainly an aluminum composite plate 14) provided on the rearmost side, a fixing hole (e.g., mainly a fixing hole 18) that fits into the notch and can be connected to an external fixing means, and a fixing piece (e.g., mainly a fixing piece 17) that is joined to the rear surface of the light guide plate.

[0029] Due to the above features, the light-emitting display device of the present invention can be fixed upright without a frame covering the front, since the structure for fixing it to a wall surface or the like can be completed on the back surface.

[0030] <Third characteristic point> A diffusion plate is provided between the design plate and the light guide plate, and the design plate has a width larger than that of the other plates and is provided with a width that can be joined to the frame; It is characterized by having a storage section (for example, a space formed mainly between the light guide plate 13 and the aluminum composite plate 14 and the inner surface 26 of the side frame 21) that stores the light source section and the wiring section that supplies power between at least the light guide plate and the frame section. With the above features, in the light-emitting display device of the present invention, the frame portion does not overlap the design portion, so the design appears in the foreground and can be applied in a brilliant manner.

[0031] <Fourth feature> The decorative plate is characterized in that it is joined so as to cover the end face of the frame portion. With the above features, in the light-emitting display device of the present invention, the frame portion does not overlap the design portion, so the design appears in the foreground and can be applied in a brilliant manner.

[0032] <Fifth feature> The plurality of fixing pieces are arranged in a plurality of rows and columns above the center of the light emitting display device. With the above features, the light emitting display device of the present invention can be firmly fixed upright without a frame covering the front surface by providing a fixing position above the center of gravity. [Industrial Applicability]

[0033] In addition to being erected on the walls of apartment buildings and showrooms, it can also be used as a decoration or lighting device on the walls of trains and buses. [Explanation of symbols]

[0034] 1...light-emitting display device, 10...light-emitting unit, 11...design plate, 13...light guide plate, 12...milky half plate, 14...Aluminum composite plate, 16...Hole, 17...Fixing piece, 18...Fixing hole, 20...Frame part, 21...side frame, 23...fixed frame, 26...inner surface.

Claims

1. A light-emitting display device including a light source unit that emits light by supplied power, a decorative plate on the front surface of the light-emitting display device, the decorative plate being decorated with a figure, a pattern, a symbol, a letter, or a combination thereof; a light guide plate that guides light from the light source unit toward a front surface; a frame portion that supports the light emitting display device and is provided with the light source portion and is formed so as not to overlap the front surface of the design plate; A reflector having a reflecting function on the front surface and a notch portion is provided, the frame portion is joined to the rear surface of the light guide plate by a joining means and further includes a fixing frame for enabling joining to an external device; a light-emitting display device comprising a fixing hole capable of being coupled to the joining means, a fixing piece that fits into the notch, and is joined to the rear surface of the light guide plate;

2. a diffusion plate is provided between the design plate and the light guide plate, the design plate has a width larger than that of the other plates and is provided with a width that can be joined to the frame portion; 2. The light emitting display device according to claim 1, further comprising a housing portion for housing the light source portion and a wiring portion for supplying electric power thereto, between at least the light guide plate and the frame portion.

3. The light-emitting display device according to claim 1 , wherein the decorative plate is joined to cover an end face of the frame portion.

4. 2. The light-emitting display device according to claim 1, wherein the plurality of fixing pieces are arranged in a plurality of rows and columns above the center of the light-emitting display device.

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