JPH11133238A - Surface light emitting material, light emitting method by using the same and manufacture of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the surface light emitting material capable of emitting color light by forming a transfer resin layer containing an ultraviolet ray light emitter in the surface of a light-guiding plate. SOLUTION: The transfer resin layer 3 contains the ultraviolet ray light emitter in the surface of the light-guiding plate. The layer 3 contains the light emitter in the transfer resin. The ultraviolet ray light emitter emits light, when it is irradiated with ultraviolet rays, and it is embodied by inorganic material, such as yttrium sulfide oxide, germanium oxide zinc, barium oxide, and magnesium chloride, and organic materials, such as fluorescent dyes, like rhodamine B, rhodamine 6G, fluorescein, and eosin, and fluorescent pigments prepared on the basis of the fluoresent dyes. This surface light emitter is allowed to emit light by irradiating the emitter contained in the surface of the transfer resin layer 3 from the edges of the light guiding plate 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface illuminator which can be used for various surface illuminators such as an illuminated sign, a liquid crystal backlight, a lighting display, a signboard, a signboard, etc. The present invention relates to a method for producing a body.

[0002]

2. Description of the Related Art Conventionally, there is a surface light source as a lighting fixture used for an electric signboard or the like. The surface light source body is formed by laminating a light guide plate and a reflection sheet, and introduces light from a light source such as a fluorescent lamp from a lateral edge of the light guide plate, emits the light from the surface of the light guide plate, and exerts a lighting function. Things. A typical surface light emitter is a screen made of ink mixed with titanium oxide, barium sulfate, etc., which is a photorefractive material in a binder, on one side of a light guide plate made of a transparent resin substrate with good light transmission such as acrylic resin. In some cases, printing is performed to form a pattern such as a spot-like pattern, thereby forming an irregular reflection surface, and further covering with a reflection sheet. The light emission of the surface light source body is caused by irradiating the light of the fluorescent lamp from the edge and irradiating the surface with the irregular reflection surface to cause irregular reflection. However, the light emitted by the conventional surface light source is white light emission, and in order to emit chromatic light by using it for an electric signboard, it is necessary to apply a chromatic film to the surface of the fluorescent tube of the light source, The surface light source itself could not emit colored light.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the prior art, and has as its object to provide a surface illuminator capable of emitting colored light and a method for illuminating the surface illuminator. It is another object of the present invention to provide a method capable of easily manufacturing the surface light emitter.

[0004]

The present inventors have focused on providing an ultraviolet light emitter that emits light upon irradiation with ultraviolet light on the surface of a light guide plate, and provided an adhesive layer on the surface of the light guide plate, It has been found that an ultraviolet light emitter is attached to the surface of the layer, but this method has a disadvantage that light emission is weak.
The present inventors have conducted extensive studies on various methods of attaching the ultraviolet light emitter to the light guide plate, and as a result, by providing a transferable resin layer containing the ultraviolet light emitter on the surface of the light guide plate,
The inventor has found that strong colored light emission can be achieved, and based on this finding, has completed the present invention. Further, as a method of providing a transferable resin layer containing an ultraviolet light emitter on a light guide plate, a method of directly applying and printing a resin containing an ultraviolet light emitter on the light guide plate can be considered. In the case of a large or curved surface, the operation is complicated or difficult, and there is a disadvantage that the surface light emitter cannot be easily manufactured. The present inventors have conducted intensive research in order to develop an easy method for manufacturing a surface light emitter, and as a result,
By printing on a transfer sheet or the like, or forming a transferable resin layer containing an ultraviolet light emitter by means such as coating, and finding that the surface light emitter can be easily manufactured by transferring the transferable resin layer to the light guide plate, The present invention has been completed based on these findings.

That is, the present invention provides a surface light emitter characterized in that a transferable resin layer containing an ultraviolet light emitter is provided on the surface of a light guide plate. The present invention also provides a method for emitting light from a surface light emitter, which comprises irradiating ultraviolet light from the edge of a light guide plate provided with a transferable resin layer containing an ultraviolet light emitter on the surface. Further, the present invention provides a method for manufacturing a surface light emitter, which comprises transferring a transferable resin layer containing an ultraviolet light emitter to a light guide plate. Hereinafter, the present invention will be described in detail.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The transferable resin layer containing an ultraviolet light emitter in the present invention comprises a transfer resin containing an ultraviolet light emitter. Ultraviolet light emitters emit light when irradiated with ultraviolet light, and include, for example, inorganic substances such as yttrium sulfide oxide, germanium zinc oxide, barium oxide, magnesium oxide, aluminum oxide, and strontium chloride phosphate, and rhodamine B and rhodamine. 6
Organic substances such as fluorescent dyes such as G, fluorescein, and eosin, and fluorescent pigments made based on these fluorescent dyes. Among these, inorganic substances are preferable in terms of weather resistance. As a commercially available ultraviolet light emitter, YS-A
(Reddish emission), HG-A (young green emission), SPE-A
(Blue emission), HR-A (red emission), ALN-GP
(Luminous light emission), ALN-BP (ultraviolet light emission) (all manufactured by Nemoto Special Chemical Co., Ltd.) and the like. Commercial products of these ultraviolet light emitters emit light in the colors shown in parentheses when irradiated with ultraviolet light.

The ultraviolet light emitter is preferably a powder, and its average particle size is preferably in the range of 1 to 10 μm.
In particular, the range of 1 to 5 μm is preferable. The particle size distribution of the ultraviolet light emitter is preferably in the range of 0.5 to 25 μm, particularly preferably in the range of 1 to 10 μm. The UV emitter is 1
These can be used alone or in combination of two or more.

[0008] When the content of the ultraviolet light emitter in the transferable resin is reduced, the light emission becomes weaker, and when the content of the ultraviolet light emitter is increased, the light emission becomes stronger. Good. Usually, the content of the ultraviolet light emitter is 10 to 200 parts by weight per 100 parts by weight of the solid content of the transferable resin.
Part by weight is preferred, and 50-100 parts by weight is particularly preferred. When the content of the ultraviolet light emitter is 100,
If the amount exceeds 200 parts by weight with respect to parts by weight, it is difficult to print when the transferable resin layer is provided by printing.
If the amount is less than 0 parts by weight, light emission becomes weak. It is preferable that the ultraviolet light emitter is uniformly mixed in the transferable resin in order to eliminate uneven color of the emission color.

The transferable resin used in the present invention is not particularly limited as long as it can be transferred, such as a pressure-sensitive adhesive, a heat-sensitive adhesive, a solvent-evaporating adhesive, a printing ink, or a paint. It is preferable to use a transparent adhesive which can be transferred to the light guide plate by itself and is easy to handle. Specific examples of the adhesive include an acrylic resin-based adhesive, a synthetic rubber-based adhesive, a silicone resin-based adhesive, and a vinyl resin-based adhesive. Among these pressure-sensitive adhesives, particularly preferred are acrylic resin-based pressure-sensitive adhesives having excellent resistance to deterioration by irradiation with ultraviolet light. These transferable resins can be used alone or in combination of two or more.

[0010] It is preferable that the pressure-sensitive adhesive contains a curing agent to crosslink the pressure-sensitive adhesive. Examples of the curing agent include a polyisocyanate compound, an epoxy compound, a chelate compound and the like, preferably a polyisocyanate compound, and particularly preferably an aliphatic polyisocyanate compound. The content of the curing agent is not particularly limited, but is usually 0.1 to 100 parts by weight of the solid content of the pressure-sensitive adhesive.
20 parts by weight are preferred.

The pressure-sensitive adhesive may further contain a tackifier, a softener, an antioxidant, a diluent, and the like, if necessary. As the tackifier, rosin resin, terpene phenol resin, terpene resin, aromatic hydrocarbon modified terpene resin, petroleum resin, cumarone-indene resin,
Styrene-based resins, phenol-based resins, xylene resins, and the like are included. Examples of the softener include process oil, liquid rubber, plasticizer, and the like. Examples of the diluent include aromatic hydrocarbons such as xylene and toluene, and aliphatic hydrocarbons such as hexane and heptane.

The surface illuminant of the present invention is provided with a transferable resin layer containing an ultraviolet illuminant on the surface of a light guide plate. The transferable resin layer can be provided on one side or both sides of the light guide plate. The light guide plate is a transparent plate having good ultraviolet transmittance, and examples thereof include an acrylic resin plate, a polycarbonate resin plate, and an amorphous polyolefin resin plate. The UV transmittance of the light guide plate is preferably 20% or more, more preferably 40% or more, and particularly preferably 70% or more. The thickness of the light guide plate may be appropriately selected, but is usually 0.3 to 30 mm, preferably 0.5 to 20 mm. The shape of the light guide plate is not particularly limited, but the shape of the edge of the light guide plate is preferably selected according to the shape of the light source. Since the light source usually used is a straight tube, it is better to make the shape of the edge straight. The size of the light guide plate may be appropriately selected depending on the application.

The transferable resin layer provided on the surface of the light guide plate can be provided in any desired pattern. The pattern can be various patterns such as characters, symbols, figures, pictures, photographs, and the like. Further, the transferable resin layer can emit light of any color by selecting the type of the ultraviolet light emitter contained. For example, a transferable resin layer containing a mixture of an ultraviolet light emitter that emits red light and an ultraviolet light emitter that emits blue light can emit purple light. Further, by arranging transferable resin layers having different emission colors at arbitrary positions, multicolor emission can be achieved.
For example, when a transfer resin layer containing an ultraviolet light emitter that emits red light and a transfer resin layer containing an ultraviolet light emitter that emits blue light are separately arranged, a portion that emits red light and a portion that emits blue light Light can be emitted at the same time. The transferable resin layer may be a single layer or a laminate of the same or different transferable resin layers. When the transferable resin layers having different emission colors are laminated, the light emission of the transferable resin layer on the upper surface is strongly observed. Therefore, when the light guide plate is observed from one surface and the light guide plate is observed from the other surface, the light emission is different. The colors are observed differently. The thickness of the transferable resin layer is not particularly limited, but is usually preferably in the range of 5 to 500 μm, more preferably in the range of 10 to 400 μm, and particularly preferably in the range of 15 to 300 μm. .

When a pressure-sensitive adhesive is used as the transferable resin, the surface of the pressure-sensitive adhesive layer may be deactivated in areas where tackiness is unnecessary, or a non-sticky substance may be applied in a predetermined pattern. It may be provided by printing or the like to eliminate stickiness.
Examples of the substance that deactivates the adhesiveness of the adhesive portion include, for example, an acrylic adhesive obtained by copolymerizing 2-ethylhexyl acrylate, acrylic acid having a carboxyl group in butyl acrylate, or 2-hydroxyethyl methacrylate having a hydroxyl group. When is used as an adhesive, a reactive curable resin such as triisocyanate and butylated melamine resin is used. Examples of the non-tacky substance include synthetic resins such as vinyl acetate, vinyl chloride, polystyrene, methyl methacrylate, vinyl chloride-vinyl acetate copolymer, ethylene-vinyl acetate copolymer, silicone resin, and polyvinyl alcohol. Examples include starch, printing ink, and paint.

The surface of the pressure-sensitive adhesive layer transferred to the light guide plate is preferably covered with a protective sheet. The protective sheet can function to prevent the surface of the pressure-sensitive adhesive from being stained and to prevent the luminance from being lowered. Although any material can be used for the protective sheet, a resin film is preferable, and a polyester resin film and a polypropylene resin film are particularly preferable.
The protective sheet can be of any color, but is preferably transparent or black. When the protective sheet is transparent, light emission can be observed from any surface direction of the light guide plate. Further, the black protective sheet can sharpen the color development of the pressure-sensitive adhesive layer when observed from the opposite side where the protective sheet is provided.

The width and length of the protective sheet may be appropriately selected according to various conditions of the surface light emitter. The thickness of the protective sheet may be appropriately selected and determined.
μm is used, and preferably 40 to 500 μm. In addition, on the surface of the protective sheet on which the ultraviolet light emitter-containing adhesive is not attached, an adhesive layer for attaching to another member may be provided, and further, a release sheet is provided on the adhesive layer. You may.

A method of providing a transfer resin layer containing an ultraviolet light emitter on the surface of a light guide plate is to form a transfer resin layer containing an ultraviolet light emitter on a transfer sheet or the like by printing or coating, and then apply the ultraviolet light emission. The transfer can be performed by transferring the body-containing transferable resin layer to the light guide plate. As the transfer sheet used for the transfer, various sheets such as a film of a synthetic resin such as a polyethylene resin, a polypropylene resin, and a polyvinyl chloride resin, kraft paper, and glassine paper can be used. As the transfer method, a method is particularly preferable in which a transferable resin layer is provided on one surface of a transfer sheet by coating, printing, or the like, and the transferable resin layer is transferred to the surface of the light guide plate. In addition,
When a technique such as screen printing is used, transferable resin layers having various patterns can be provided. After the transfer of the transferable resin layer, the transfer sheet may be left as it is, or may be removed. When the transfer sheet is removed, it is preferable that the surface of the transfer sheet is subjected to a release treatment using a silicone release agent or the like so that the interface between the transferable resin layer and the transfer sheet is easily removed.

Further, a release sheet such as a release paper may be covered on the surface of the ultraviolet light emitting substance-containing pressure-sensitive adhesive before the transfer. Instead of using a release sheet, a release agent may be applied to the back surface of the protective sheet, and the protective sheet may be wound into a roll and stored. In this way, the surface of the pressure-sensitive adhesive containing the ultraviolet light emitter can be protected, and the surface can be prevented from being stained.
In the surface light emitting body of the present invention, an edge portion where the ultraviolet light source is not installed may be covered with an end face seal. By covering the edge portion with the end face seal, the ultraviolet light reaching the edge is reflected, the leakage of the ultraviolet light from the edge is reduced, and the emission intensity can be increased. The end face seal is
The material is preferably a material that easily reflects ultraviolet light, and the color is preferably white. In order to attach the end face seal to the edge, an adhesive may be provided on the surface of the end face seal and attached, or a double-sided adhesive tape may be attached to the edge, and the end face seal may be attached thereon.

Next, the light emitting method of the surface light emitter of the present invention will be described. The surface light emitter of the present invention can emit light by irradiating ultraviolet light from the edge of the light guide plate. As the ultraviolet light source, any light source can be used as long as it can emit ultraviolet light. For example, a black light is preferable. The wavelength of the ultraviolet light to be applied is not particularly limited, but is preferably 280 nm or more, and more preferably 320 to
380 nm ultraviolet light is preferred. The tube brightness of the light source is not particularly limited, but is preferably 5 cd / cm ² or more. Irradiation with ultraviolet light may be performed from the edge, but the illuminance decreases as the distance from the ultraviolet light source increases, so that when the content of the ultraviolet light emitter in the transferable resin layer is the same, the transfer is performed as the distance from the ultraviolet light source increases. Light emission of the conductive resin layer is weakened. In such a case, two or more ultraviolet light sources can be used to supplement the illuminance of the ultraviolet light. For example, when the shape of the light guide plate is a quadrangle, the irradiation of the ultraviolet light may be performed from one edge, or the irradiation of the ultraviolet light may be performed on two sides.
Or from two adjacent edges, or three or four edges.

Further, when the surface light emitter of the present invention is irradiated with visible light from the edge, white light or colored light is emitted depending on the type of the ultraviolet light emitter. Among the above-mentioned ultraviolet light emitters, inorganic substances such as commercial products manufactured by Nemoto Special Chemical Co., Ltd. emit white color by irradiation with visible light, and organic substances emit colored color by irradiation with visible light. Therefore, the ultraviolet light and the visible light may be irradiated at the same time, or the ultraviolet light and the visible light may be switched for irradiation. When switching between ultraviolet and visible light to a surface illuminant using an ultraviolet light emitter that emits white light by visible light irradiation, when emitting ultraviolet light, colored light is emitted when irradiating ultraviolet light, and white light is emitted when irradiating visible light. I do. Therefore, by repeatedly switching and irradiating ultraviolet light and visible light, colored light emission and white color development can be repeated. As the light source of visible light, any light source can be used as long as it can emit visible light, and examples thereof include a fluorescent lamp. The wavelength of visible light is not particularly limited,
Usually, it is preferably from 380 to 780 nm, particularly preferably 450 to 780 nm.
~ 650 nm is preferred. The tube brightness of the light source is not particularly limited, but is preferably 1000 cd / cm ² or more. The surface light-emitting body of the present invention can be used for various surface light-emitting bodies such as an electric sign, a liquid crystal backlight, a lighting display, a sign board, and a signboard.

[0021]

Next, the present invention will be described specifically with reference to examples (see FIGS. 1, 2 and 3). However, the present invention is not limited at all by these examples.

Example 1 100 parts by weight of an acrylic pressure-sensitive adhesive (DB5541, solid content of pressure-sensitive adhesive of 56% by weight, manufactured by Diabond Industries Co., Ltd.) was used as an ultraviolet light emitter as YS-A (manufactured by Nemoto Special Chemical Co., Ltd.). 30 parts by weight (54 parts by weight with respect to 100 parts by weight of the solid content of the adhesive) were mixed with an average particle size of 5 μm and a particle size distribution of 1 to 10 μm.
L, manufactured by Nippon Polyurethane Industry Co., Ltd.) 0.25 parts by weight,
And 10 parts by weight of xylene to prepare a pressure-sensitive adhesive containing an ultraviolet light emitter. Next, a transfer sheet (also serving as a protective sheet) composed of a black polyvinyl chloride resin film 5 (thickness: 50 μm, size: 3)
20mm × 20mm at the center of 50mm × 280mm)
And dried to form a transferable resin layer (thickness of the transferable resin layer: 100 μm). Next, the transfer sheet on which the transferable resin layer is formed is attached to the acrylic resin light guide plate 2 (#
000, size 350mm × 280mm, thickness 15m
m, manufactured by Mitsubishi Rayon Co., Ltd.), the transferable resin layer 3 is transferred to the surface of the light guide plate 2, and a transparent double-sided adhesive tape is pasted on three side edges, and an end face seal 4 is placed thereon.
(Trade name “Laylamat”, polycarbonate film, thickness of 188 μm, manufactured by Ewa Shoko Co., Ltd.) was adhered to the three side edges to produce surface light emitter 1. As shown in FIG. 1, one side edge of the light guide plate 2 has a diameter of 15 m.
m black light tube 7 (30 cd / cm ² ) was installed and irradiated with ultraviolet rays (wavelength 350 nm). Then, a luminance meter 8 (Minolta LS100) was installed at a position 1 m away from the surface of the transferable resin layer, and the luminance was measured. As a result, Y
The transferable resin layer 3 containing SA (vermilion emission) emitted vermilion light, and the luminance of the emitted light was 58 cd / cm ² .

Examples 2 to 4 Instead of YS-A as an ultraviolet light emitter, HG-A, S
PE-A, ALN-GP (both Nemoto Special Chemical Co., Ltd.)
Manufactured, average particle size: 5 μm, 5 μm, 3 μm, particle size distribution: 1
To 10 μm, 1 to 10 μm, and 1 to 5 μm) were mixed in an amount of 30 parts by weight (54 parts by weight with respect to 100 parts by weight of the solid content of the adhesive), and a surface light emitter was prepared in the same manner as in Example 1. The brightness was measured. As a result, the transferable resin layers containing HG-A (light green light emission), SPE-A (blue light emission), and ALN-GP (green light emission) emit light in the colors shown in parentheses, respectively. Has a luminance of 130
cd / cm ^2, was ^{18cd / cm 2, 237cd / cm} 2.

Example 5 To 100 parts by weight of an acrylic pressure-sensitive adhesive (DB5541, solid content of pressure-sensitive adhesive: 56% by weight, manufactured by Diabond Industries, Ltd.), YS-A (vermilion light emission), HG-A ( 50 parts by weight (89 parts by weight based on 100 parts by weight of adhesive solids) were separately added to each of SPE-A (blue light emission) and SPE-A (blue light emission), respectively. And YS-A (reddish red) by mixing 0.25 parts by weight of a polyisocyanate curing agent (Coronate HL, manufactured by Nippon Polyurethane Industry Co., Ltd.) and 10 parts by weight of xylene with each of the three types of adhesive mixtures containing an ultraviolet light emitter. UV-emitting substance-containing pressure-sensitive adhesive containing luminescence), UV-emitting substance-containing pressure-sensitive adhesive containing HG-A (light green color light emission), SPE-
An ultraviolet light emitting substance-containing pressure-sensitive adhesive containing A (blue light emission) was prepared. Further, in the above method for preparing an ultraviolet light-emitting substance-containing pressure-sensitive adhesive, 17 parts by weight of YS-A (red light emission), HG-A (green light emission), and SPE-A (blue light emission) are respectively used as the ultraviolet light emitters. (30 parts by weight with respect to 100 parts by weight of the solid content of the pressure-sensitive adhesive) to prepare a pressure-sensitive adhesive containing an ultraviolet light-emitting material in which three kinds of ultraviolet light-emitting materials were contained in the pressure-sensitive adhesive. Next, a piece of glossy kraft paper (92 μm thick,
A UV-emitting material-containing adhesive is screen-printed on the surface of cherry blossom petals on a gloss surface of Lintec Co., Ltd., and the printed material of this cherry blossom petal pattern is printed on an acrylic resin light guide plate 2 (# 000, # 000) as shown in FIG. UV transmittance 80-90%
(300-400 nm), manufactured by Mitsubishi Rayon Co., Ltd., size 3
(50 mm x 280 mm, thickness 15 mm). Similarly, an ultraviolet light-emitting substance-containing pressure-sensitive adhesive is screen-printed on the glossy surface of another piece of glossy kraft paper in the form of cherry petals, and the printed material of each cherry petal pattern is printed on the acrylic resin light guide plate 2. The transfer was performed successively so that the pattern of each area was partially overlapped with each corner area, and the transfer resin layer 3 was provided (thickness of each transfer resin layer: 30 μm). Next, a transparent protective sheet 6 made of a polyethylene terephthalate resin film (thickness 50 μm, size 350 mm × 28) is formed so as to cover the surface of the transferred transferable resin layer 3.
0 mm). Furthermore, a double-sided adhesive tape is stuck on the three side edges, and an end face seal 4 (trade name “Leila mat”, polycarbonate film, white,
188 μm thick (manufactured by Ewa Shoko Co., Ltd.) was adhered to the three side edges to produce a surface light emitter 1. As shown in FIG. 2, the transferable resin layer of the transferable resin layer area is transferred to one side of the light guide plate so that the pattern of each area is partially overlapped with each corner area. The specific pattern of each transferable resin layer is a pattern of cherry blossom petals as shown in FIG.

Next, as shown in FIG. 2, one side edge of the light guide plate 2 is
(30 cd / cm ² ) and ultraviolet rays (wavelength 350 n
m) was irradiated. Cherry blossom petals formed of a transferable resin layer containing YS-A (vermilion light emission), HG-A (light green color light emission), and SPE-A (blue light emission) alone have the colors shown in parentheses. The cherry blossom petals that emit light and are formed of a pressure-sensitive adhesive layer in which three types of ultraviolet light emitters are mixed emit white light, and multicolor light emission is observed. Further, in a portion where the respective transferable resin layers partially overlap, for example, in a portion where the transferable resin layer and the transferable resin layer are sequentially laminated on the back surface of the light guide plate, the surface of the light guide plate (the upper surface of the light guide plate 2 in FIG. 2). Observing from ()), vermilion light emission of the transferable resin layer is preferentially observed. Further, the end face seal of the opposite edge of the side edge where the black light is installed is peeled off, and a slim fluorescent lamp tube of φ15 mm (1000 cd / c
m ² ), the black light and the fluorescent tube are intermittently switched and irradiated, and the cherry blossom petals emit ultraviolet rays (wavelength 35).
(0 nm), colored light was emitted, and white light was emitted when irradiated with visible light (wavelength: 380 to 780 nm) from a fluorescent tube.

[0026]

The surface light emitter of the present invention can emit colored light and simultaneously emit multicolor light. Further, according to the method for manufacturing a surface light emitter of the present invention, a surface light emitter can be easily manufactured.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a surface light emitter according to one embodiment of the present invention.

FIG. 2 is a schematic perspective view of a surface light emitting body according to another embodiment of the present invention.

FIG. 3 is a perspective view specifically showing a pattern of an adhesive layer of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Surface light-emitting body 2 Light guide plate 3 Transferable resin layer 4 Edge seal 5 Black protective sheet 6 Transparent protective sheet 7 Black light 8 Brightness meter Transferable resin layer area Transferable resin layer area Transferable resin layer area Transferable resin layer area

Claims (5)

[Claims] 1. A surface luminous body, wherein a transferable resin layer containing an ultraviolet luminous body is provided on a surface of a light guide plate. 2. The surface light-emitting device according to claim 1, wherein the transferable resin layer is a combination of two or more transferable resin layers having different emission colors. 3. The surface light emitter according to claim 1, wherein the transferable resin layer is an adhesive layer containing an ultraviolet light emitter. 4. A method of emitting light from a surface light emitter, comprising irradiating ultraviolet light from an edge of a light guide plate provided with a transferable resin layer containing an ultraviolet light emitter on the surface. 5. A method for manufacturing a surface light emitter, comprising transferring a transferable resin layer containing an ultraviolet light emitter to a light guide plate.