WO2012008639A1

WO2012008639A1 - Method for manufacturing flexible planar light-emitting body using optical fibers having enhanced light-emitting efficiency

Info

Publication number: WO2012008639A1
Application number: PCT/KR2010/004935
Authority: WO
Inventors: 최기승; 이종찬; 허인성
Original assignee: 금호전기주식회사
Priority date: 2010-07-15
Filing date: 2010-07-27
Publication date: 2012-01-19
Also published as: KR20120007603A; KR101127871B1

Abstract

The present invention relates to a method for manufacturing a flexible planar light-emitting body using optical fibers having enhanced light-emitting efficiency, and more specifically, to a method for manufacturing a flexible planar light-emitting body using optical fibers having enhanced light-emitting efficiency, wherein the optical fibers are attached to a holding frame and then deformed, thereby resulting in enhanced light-emitting efficiency, and wherein silicone is inserted into the holding frame, the optical fibers are fixed, and then the holding frame is removed, and thus the optical fibers can be applied to car seats, sofas, and chairs that require elasticity and flexibility.

Description

Method for manufacturing flexible planar light emitting body using optical fiber with improved luminous efficiency

The present invention relates to a method of manufacturing a flexible planar light emitting body using an optical fiber having improved luminous efficiency. More particularly, the optical fiber is mounted on a fixed frame, and the optical fiber is deformed to improve luminous efficiency, and silicon is injected into the fixed frame. By removing the fixing frame when fixed, the present invention relates to a method of manufacturing a flexible flat light emitting body using an optical fiber with improved luminous efficiency that can be applied to a vehicle seat, a sofa, a chair, and the like that require elasticity and elasticity.

In general, an optical fiber is an optical fiber in which light passing through the central glass is totally reflected using a glass having a high refractive index at the center and a glass having a low refractive index at the outside. Due to the very low energy loss, the loss rate of the data to be transmitted and received is low and has little influence from the outside.

The structure of the optical fiber has a double cylinder shape in which a portion called a core is wrapped around a portion called cladding. At this time, both the core and the cladding are called optical fiber (POF-Plastic Optical Fiber), the optical fiber made of light-transmissive plastic material, it is superior in flexibility (flexible), and resistant to vibration and bending of the optical fiber made of glass.

In addition, in the field of architectural lighting, the distance between the light source and the end of the optical fiber should be about 10 to 50 meters, so it should be easy to install, and the plastic optical fiber is suitable because it can effectively transmit light to a long distance.

However, since the conventional lighting fixture using the optical fiber is installed in such a way that the optical fiber cable is inserted into the integrated pipe, it is difficult to adjust the lighting angle in a desired direction when the installation of the lighting fixture is completed.

In addition, it is very difficult to apply the lighting effect to the body contact material such as fabric or leather, so that the optical fiber is applied to products such as clothes, sofas, chairs, car seats, interior materials for cars, etc. It is difficult to produce the lighting effect.

In addition, in order to achieve the lighting effect using the optical fiber in the plane, the optical fiber should be installed perpendicular to the plane so that the ends of the optical fiber are in the plane. In this case, the optical fiber must be folded because the internal material is increased due to the optical fiber inserted vertically. . However, there is a limit to bending, so it is necessary to adjust the bending of the radius appropriately.

In addition, the conventional optical fiber has a limit in the luminous efficiency by vertically cutting the end of the optical fiber, the emission angle is 120 degrees or less. When using an additional optical system to improve these characteristics there is a problem that becomes a factor of unit cost correspondence.

On the other hand, halogen lamps, metal halide lamps and the like are used as the main light source in the conventional optical fiber lighting device. The characteristics of these two light sources are not only lit at any time but also excellent in color rendering properties, which is advantageous for lighting using optical fibers.

However, as described above, the light source used in the conventional optical fiber lighting device has a lifespan of about 2000 hours for halogen lamps and about 5000 to 6000 hours for metal halide lamps, and the width * length * height is about 300mm * 250mm * 150mm The light source device of 1Kw class and the discharge light source lamp are included in the light source device of the degree, which causes considerable heat generation.

In addition, there is a problem that the energy efficiency is not very high, such as using an internal reflector, and the structure of the light source device is heavy and bulky by many components, and the main light source itself is made of glass, which is vulnerable to external vibration.

The present invention was created in order to solve the above-described problems, the lighting angle can be adjusted in a desired direction, the illumination using the optical fiber in products such as clothing, sofas, chairs, car seats, interior materials for cars made of fabric or leather material It is an object of the present invention to provide a method of producing a flexible planar light emitting body that can produce an effect.

In addition, an object of the present invention is to provide a method for producing a flexible planar light emitting body having high luminous efficiency by thermoforming an end of an optical fiber or by widely modifying a surface area on which an optical fiber is mounted.

In addition, another object of the present invention is to provide a method for manufacturing a fiber optic lighting apparatus capable of reproducing various colors desired by a user, and excellent in heat generation and impact resistance.

According to an aspect of the present invention, there is provided a method of manufacturing a flexible planar light emitting body using an optical fiber having improved luminous efficiency, the method comprising: mounting a plurality of optical fibers in a fixed frame, deforming the mounted plurality of optical fibers, and Implanting silicon into the fixing frame to fix the plurality of optical fibers to generate an optical fiber structure, and detaching the fixing frame from the optical fiber structure.

The fixing frame may include a lower plate, a side frame, and an upper plate, and the lower plate and the upper plate may have a space having a cross-sectional size of the optical fiber to mount the optical fiber.

In addition, the upper plate may be moved to the left and right or back and forth so that the angle between the lower plate and the optical fiber is 40 degrees to 70 degrees.

Meanwhile, in the deforming of the mounted plurality of optical fibers, thermoforming the mounted plurality of optical fiber ends, and the thermoforming may be performed by expanding a light emitting angle of the plurality of optical fiber ends by using a forming rod, or the fixing frame. The ends of the plurality of optical fibers attached to the annular shape may be deformed and surface treatment may be performed on the annular portion of the optical fiber.

In addition, the method of manufacturing a flexible flat light emitting body using the optical fiber with improved luminous efficiency according to the present invention may further comprise attaching a fabric or leather to one surface of the optical fiber structure.

In addition, the method for manufacturing a flexible planar light emitting body using the optical fiber with improved luminous efficiency according to the present invention may further include connecting a light source unit to the optical fiber structure and generating various light source colors through a control unit for controlling the light source unit. have.

The light source unit may be an LED module, and the LED module may include at least one of a white light LED module and a multicolor light emitting LED module.

The controller may include any one of a color converter for converting the color of the LED module or a timing part for adjusting the color conversion time of the LED module, or may include a color converter and a timing part.

On the other hand, the present invention is composed of a plurality of optical fibers through which light passes and the silicon embedded in the plurality of optical fibers to expose the ends of the plurality of optical fibers, the ends of the plurality of optical fibers so that the emission angle can be expanded It includes a flexible planar light emitting body using an optical fiber with improved luminous efficiency, characterized in that molded.

In addition, the flexible flat light emitting body using the optical fiber having improved luminous efficiency may attach a fabric or leather to one surface of the silicon exposed ends of the plurality of optical fibers.

On the other hand, the present invention is composed of a plurality of optical fibers through which light passes and the silicon containing the plurality of optical fibers to expose the ends of the plurality of optical fibers, and the ends of the optical fiber and the optical fiber so that the emission area can be expanded It includes a flexible planar light emitting body using the optical fiber with improved luminous efficiency, characterized in that the angle of the exposed surface is 40 degrees to 70 degrees.

According to the method of manufacturing a flexible flat light emitting body using the optical fiber with improved luminous efficiency according to the present invention,

First, by thermoforming the end of the optical fiber, there is no need for a separate optical system, thereby improving the luminous efficiency while reducing the cost.

Second, by thermoforming the ends of the optical fiber in various forms, it is possible to design a variety of optical performance and characteristics.

Third, when the end of the optical fiber is formed to a wide range it can prevent the phenomenon from being separated from the product.

Fourth, by injecting silicon into the outer shell of the optical fiber to maximize flexibility, it can be used as a lighting in the place that needs elasticity, elasticity.

Fifth, it is possible to manufacture a lighting fixture that can adjust the lighting angle in a desired direction using the flexible nature of the plastic optical fiber.

Sixth, it is possible to provide an optical fiber lighting device that can reduce the volume and weight by simplifying the structure of the optical fiber lighting device using the LED module as a light source.

Seventh, when producing a flexible flat light emitting body having improved luminous efficiency by using the present invention can be a uniform flat light emitting body, it is possible to use a fixed frame in each process equipment as it is possible to obtain a production cost reduction effect through a simplified process have.

Eighth, the optical fiber light is cold light, so there is no heat generation, so it is possible to reduce energy costs, and it is efficient to make an illumination point with one light source.

1 is a flowchart of a method of manufacturing a flexible planar light emitting body using an optical fiber having improved luminous efficiency.

2 is a perspective view of an embodiment of a fixing frame for mounting a plurality of optical fibers,

3 illustrates an embodiment in which the upper plate moves to the right to change the angle formed by the lower plate and the optical fiber,

4 illustrates an embodiment of thermoforming an optical fiber end with a forming rod,

5 is a side view of a conventional optical fiber end,

6 is a side view of an optical fiber end thermoformed with a forming rod,

7 is a side view of a forming rod and an optical fiber end thermoformed by the forming rod,

8 illustrates an embodiment in which the optical fiber is deformed to have a ring shape,

9 illustrates an optical fiber deformed into a ring shape and subjected to surface treatment;

FIG. 10 illustrates an embodiment in which a flexible flat light emitter using an optical fiber having improved luminous efficiency is used for an automobile seat.

FIG. 11 illustrates an embodiment in which a flexible flat light emitter using an optical fiber is used for a vehicle mat.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

In the present invention, the optical fiber includes both a glass fiber (GOF-Glass Optical Fiber: optical fiber made of quartz as the main material) and a plastic optical fiber (POF-Plastic Optical Fiber: optical fiber made of PMMA (Poly MethylMeth Acrylate) as the main material).

The plastic optical fiber consists of a core made of high purity acrylic resin (PMMA-Poly Methylmethacrylate) and a thin cladding layer made of special fluoropolymer (F-PMMA-Fluorinated Poly Methylmethacrylate). Since the refractive index of the cladding is lower than that of the core, light from one end of the optical fiber causes total reflection at the interface between the core and the cladding and exits through the core to the other fiber end. Plastic optical fibers have a very high ratio of cores to cross-sections, resulting in very high light transmission efficiency.

Since the plastic optical fiber has high light transmission efficiency and more flexibility than glass fiber, it is preferable to use a plastic optical fiber when a large amount of flexibility is required. In the present invention, the plastic optical fiber will be described as an embodiment.

First, FIG. 1 is a flowchart of a method of manufacturing a flexible planar light emitting body using an optical fiber having improved luminous efficiency, and a method of manufacturing a flexible planar light emitting body using an optical fiber having improved luminous efficiency will be described with reference to the drawing.

First, a plurality of optical fibers are mounted on the fixed frame (S10).

2 is a perspective view of an embodiment of a fixing frame for mounting a plurality of optical fibers.

The fixed frame 100 is composed of a lower plate 110, a side frame 120, the upper plate 130, the lower plate 110 and the upper plate 130 is a space of the cross-sectional size of the optical fiber 200 (hereinafter, The opening 140 may be formed to mount the optical fiber 200.

In addition, the lower plate 110 and the side frame 120 or the side frame 120 and the upper plate 130 may be connected to form an integral shape. That is, each component of the fixed frame 100 may be configured in a form that is configured separately and combined, respectively, each component may be formed in one or a whole integral shape to form the fixed frame 100. have.

In the embodiment, the central portion is open to facilitate surface treatment and silicon solidification of the optical fiber 200 to be described as the 'ㅁ' shaped frame 100.

In addition, the upper plate 130 may be moved left and right or back and forth so that the angle formed by the lower plate 110 and the optical fiber 200 is 40 degrees to 70 degrees. Figure 3 shows an embodiment in which the upper plate is moved to the right to change the angle between the lower plate and the optical fiber.

In order to produce the lighting effect using the optical fiber 200 on the plane, the optical fiber 200 is installed perpendicular to the plane so that the end of the optical fiber 200 is located in the plane. However, when the present invention is applied to an automobile seat or the like, the sheet thickness may be thick because there is a thickness inherent to the sheet and a limit of bending of the optical fiber 200. Therefore, in this case, since the embedded material of the sheet increases due to the optical fiber 200 inserted vertically, it is preferable to reduce the thickness of the entire sheet by folding the optical fiber 200. However, there is a limit to bending, so it is necessary to adjust the bending of the radius appropriately.

That is, the more the optical fiber 200 is folded, the more the volume occupies is reduced. However, since the bending is limited, the angle of bending is preferably 40 to 70 degrees. Therefore, as shown in FIG. 3, the upper plate 130 may be moved left and right or back and forth so that the angle formed by the lower plate 100 and the optical fiber 200 is 40 to 70 degrees. In addition, the upper plate 130 is fixed, the lower plate 110 may move to the left and right or back and forth.

As described above, the optical fiber 200 is formed vertically with respect to one surface to which the end of the optical fiber 200 is exposed, and thus, the optical fiber 200 is bent at an angle of 40 to 70 degrees to increase the cross-sectional area of light emitted, thereby increasing the light emission efficiency.

After mounting the plurality of optical fibers 200 to the fixed frame 100, the mounted plurality of optical fibers 200 is deformed (S20).

The first method of deforming the plurality of optical fibers 200 is a method of thermoforming the end of the optical fiber 200 (S30). The thermoforming enlarges the emission angles of the ends of the plurality of optical fibers 200 by using the forming rod 300. (S40-Y)

5 is a side view of a conventional optical fiber end. Generally, as shown in FIG. 5, when the end of the optical fiber 200 is vertically cut, the light emission angle is 120 degrees or less, which limits the light emission efficiency. When using an additional optical system to improve these characteristics there is a problem that becomes a factor of unit cost correspondence.

Figure 4 shows an embodiment of thermoforming the optical fiber end with a forming rod, in the present invention by using the heated forming rod 300, as shown in Figure 4 by thermoforming the end of the optical fiber 200 Solved the problem.

FIG. 6 is a side view of an optical fiber end thermoformed with a molding rod. As shown in FIG. 6, when the end of the optical fiber 200 is thermoformed using the molding rod 300, the light emission angle is increased, thereby improving light emission efficiency.

The forming rod 300 is provided with a metal material having excellent thermal conductivity, and is bonded to the end of the optical fiber 200 mounted at the opening 140 of the upper plate 130 at a constant speed so as to form a specific shape. The temperature is preferably between 562 ° C ~ 600 ° C, the speed of descending to bond to the end of the optical fiber 200 is preferably 0.83 m / min ~ 0.89 m / min.

FIG. 7 illustrates a side view of a forming rod and an optical fiber end that are thermoformed by a forming rod, and may have various shapes of the forming portion 310, which is an end of the forming rod 300, and the shape of the forming portion 310. Accordingly, the ends of the optical fiber 200 may be molded in various forms. By thermoforming the fiber ends in various forms, the optical performance and characteristics can be designed in various ways. Especially, when the fiber ends are widely molded, there is an additional effect of preventing the deviating from the product.

As a second method of deforming the plurality of optical fibers 200, there is a method of deforming the ends of the optical fiber 200 in a ring shape, and surface treatment on the annular portion of the optical fiber 200 (S40-N).

FIG. 8 illustrates an embodiment in which the optical fiber is deformed to have a ring shape. When the fiber is deformed in this ring shape, the surface area to be emitted becomes wider, thereby improving luminous efficiency.

In general, light traveling from the core side of the optical fiber 200 cannot pass through the cladding and come out through the cladding surface. By the way, in the field of decoration, lighting, etc., the plastic optical fiber of the light emitted from the cylindrical surface portion through the cladding out of the core can be a long and thin light source.

To achieve such an effect, light is scattered by adding impurities, such as bubbles, that can scatter light inside the core or mechanically or thermally non-uniform, ie physical damage, to the core and cladding surface. The surface emitting plastic optical fiber manufactured in this way can be used as a light source by connecting light to a general plastic optical fiber and emitting light only in a specific part.

Therefore, the surface treatment of the optical fiber that physically damages the cladding surface for light emission may be applied to the annular portion of the optical fiber 200, and an abrasive may be used separately for the surface treatment. The abrasive may be any material that can cause physical damage to the cladding surface of the optical fiber and cause high frequency vibration on the abrasive to cause surface treatment or to reciprocate the abrasive to damage the cladding of the optical fiber.

9 illustrates an optical fiber deformed into a ring shape according to the above method and subjected to surface treatment. When the end of the optical fiber is bent to make the ring shape as shown in FIG. 9, light from the light source exits through the optical fiber end. Attaching a material capable of reflecting light to the ends of the optical fiber 200 before making the annular shape, the light is reflected back to the annular portion, so that the luminous efficiency becomes better.

When the deformation of the plurality of optical fibers 200 is completed, silicon is injected into the fixed frame 100 to adjust the plurality of optical fibers 200 to generate an optical fiber structure (S50).

In general, silicon (Sillicone) refers to a polymer in which the silicon (organosilicone) containing the organic group and oxygen and the like is connected to each other by a chemical bond. Silicone is a unique chemical that combines organic and inorganic properties, and is applied in many forms, and is positioned as an essential functional material in most industrial fields.

Liquid silicone rubber (RTV silicone rubber) in the silicone has a rubber elasticity of the organic characteristics, is maintained in the temperature range of -70 ° C ~ 200 ° C, excellent electrical properties and weather resistance and the like.

The liquid silicone rubber is injected into a container in a sealed form according to the manufacturing form, and then solidified at room temperature to form a silicone rubber.

Therefore, when the silicon (particularly liquid silicone rubber) is injected and solidified in the form of the outer shell of the plastic optical fiber, it is possible to solve the problem that the coating by the thermoplastic is difficult while maintaining the property of efficiently transmitting the electrical signal of the plastic optical fiber.

Therefore, when the liquid silicone rubber is injected and solidified in a state in which the plurality of optical fibers 200 are arranged, the optical fiber is embedded while being fixed inside the silicon to generate an optical fiber structure, and the fixing frame 100 is detached from the optical fiber structure. (S60).

After that, the light source unit is connected to the optical fiber structure (S70), and various light source colors are generated through the control unit controlling the light source unit (S80).

The light source unit may be an LED module, and the LED module may include at least one of a white light LED module and a multicolor light emitting LED module, and the controller may be a color converter or a color of an LED module for converting the color of the LED module. It may include any one of the timing unit for adjusting the conversion time, or may include a color converter and a timing unit.

The LED module is a light source of the optical fiber lighting apparatus according to the present embodiment, and a light emitting chip is mounted therein. That is, the LED module has a structure in which a light emitting chip is mounted to emit light by an external power source, for example, a structure in which a light emitting chip electrically connected to an electrode pattern is mounted on a substrate on which an electrode pattern is formed. The LED module may emit various colors depending on the type of the light emitting chip and the phosphor.

The controller is for operating the LED module, and includes a power supply therein. The control unit operates by selectively supplying externally applied power to the LED module, and an on-off switch may be provided to selectively supply such external power to the LED module.

The color converter of the controller changes the color of the light source. For example, when three LED modules emitting red (R), green (G), and blue (B) are provided as a light source by providing a switch in the color conversion unit, the red (R) and green (G) switches are used as the light source. Using blue (B), the user may make a color desired.

In addition, by controlling several light sources at the same time to produce a variety of color lighting effects, or by connecting hundreds of optical fibers to a single light source, it is possible to produce a light that shines stars in the sky to create a ceiling or floor.

In addition, the color conversion unit may be exposed to the outside so that the user can operate it.

The timing unit of the control unit automatically performs on-off of the LED module by a program. That is, for example, when using three LED modules emitting red (R), green (G), and blue (B) as a light source, red (R) is emitted for the first 5 seconds and green for the next 5 seconds. (G) can be emitted, and blue (B) can be emitted for the next 5 seconds. The time-controlled tabbing of the control unit and the emission color thereof may also be variously changed according to a user's request.

As such, by using the LED module in the optical fiber lighting device, there is no need for a motor to rotate the existing multi-color filter, and thus there is no problem with the heat generated from the motor. In addition, as the components of the optical fiber lighting apparatus are simplified as described above, the size of the optical fiber lighting apparatus may be greatly reduced.

That is, using the LED module as the light source itself, it is possible to remove the multicolor filter of the conventional optical fiber lighting device, additional motors such as a motor for rotating it and a fan for dissipating heat generated inside the optical fiber lighting device to the outside. Because LED modules are smaller than halogen lamps or metal halide lamps, the size and weight of optical fiber lighting devices can be greatly reduced. In addition, the problem of failure can be minimized by eliminating components such as a motor, which is a major cause of failure.

Although not shown in FIG. 1, after removing the fixing frame 100, a fabric or leather may be attached to one surface of the optical fiber structure. The fabric is a flat cloth of any width, with warp and weft yarns interweaved up and down to each other, and is used for interior decoration, medical use, transportation and industrial materials according to the development and development of new fabrics as well as cloth. The uses include everything from consumer goods to production goods.

In particular, the fabric as a cloth must not only have functional properties such as thermal insulation, moisture absorption, flexibility, and elasticity, but also it is easier to have a self-protecting light emitting means having a function of lighting and blinking in functional clothes such as fire fighting suits. Therefore, as an embodiment of the present invention it is possible to produce a functional clothing by producing a clothes that emit light by using the fabric as a cloth. It is applied to clothing such as mannequins and fire fighting suits to make them look like police officers in the dark night, which has the effect of improving performance.

In addition, when space is limited in order to decorate a narrow space such as a car seat or a car ceiling, a flexible flat light emitter using the optical fiber of the present invention may be inserted under the seat or ceiling to obtain an aesthetic effect using lighting effects. At this time, by attaching the leather to the fixing frame can be installed as a car seat or ceiling.

However, at this time, an adhesive is required to attach a fabric or leather to one surface of the optical fiber structure, and the adhesive may include an epoxy resin and an aromatic first amine compound. Of course, the silicon portion and the fabric or leather may be attached without directly attaching the optical fiber 200 and the fabric or the leather.

FIG. 10 illustrates an embodiment in which a flexible flat light emitter using an optical fiber having improved luminous efficiency is used for a car seat. Thus, a logo of an automobile company may be applied to a seat, or a light emitting effect may be generated in a car seat through an air vent of the car seat. can do.

11 illustrates an embodiment in which a flexible flat light emitter using an optical fiber is used for a vehicle mat, and may be implemented to emit light in a vehicle mat or emit light in the shape of a car logo.

On the other hand, the flexible flat light emitting body using the optical fiber with improved luminous efficiency according to the present invention is composed of a plurality of optical fibers through which light passes and silicon containing the plurality of optical fibers to expose the ends of the plurality of optical fibers, the emission angle is Ends of the plurality of optical fibers are thermoformed so as to be enlarged. In this case, the fabric or leather may be attached to one surface of the silicon exposed ends of the plurality of optical fibers.

In addition, the flexible flat light emitting body using the optical fiber with improved luminous efficiency according to the present invention is composed of a plurality of optical fibers through which light passes and silicon containing the plurality of optical fibers to expose the ends of the plurality of optical fibers, the emission area is The angle between the optical fiber and the surface exposed end of the optical fiber is 40 to 70 degrees so as to be enlarged. In this case, the fabric or leather may be attached to one surface of the silicon exposed ends of the plurality of optical fibers.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

Claims

Mounting a plurality of optical fibers in a fixed frame;

Deforming the mounted plurality of optical fibers;

Implanting silicon into the fixing frame to fix the plurality of optical fibers to generate an optical fiber structure; And

And detaching the fixed frame from the optical fiber structure.
The method of claim 1,

The fixed frame,

It consists of the bottom plate, side frame, and top plate,

The lower plate and the upper plate is a method of manufacturing a flexible planar light emitting body using the optical fiber with improved luminous efficiency, characterized in that the space of the cross-sectional size of the optical fiber is formed can be mounted.
The method of claim 2,

The top plate,

A method of manufacturing a flexible planar light emitting body using an optical fiber having improved luminous efficiency, characterized in that the angle between the lower plate and the optical fiber is 40 to 70 degrees by moving from side to side or back and forth.
The method of claim 1,

Deforming the mounted plurality of optical fibers,

A method of manufacturing a flexible planar light emitting body using the optical fiber with improved luminous efficiency, characterized in that the thermoforming of the mounted plurality of optical fiber ends.
The method of claim 4, wherein

The thermoforming method of manufacturing a flexible flat light emitting body using the optical fiber with improved luminous efficiency, characterized in that for expanding the light emitting angle of the ends of the plurality of optical fibers by using a forming rod.
The method of claim 1,

Deforming the mounted plurality of optical fibers,

And deforming the ends of the plurality of optical fibers mounted on the fixed frame into a ring shape, and surface-treating the annular portion of the optical fiber.
The method of claim 1,

Attaching a fabric or leather to one surface of the optical fiber structure; Method of manufacturing a flexible planar light emitting body using the optical fiber with improved luminous efficiency further comprising.
The method of claim 1,

Connecting a light source unit to the optical fiber structure; the method of manufacturing a flexible planar light emitting body using an optical fiber having improved luminous efficiency.
The method of claim 8,

Generating a variety of light source colors through the control unit for controlling the light source unit; Method for manufacturing a flexible flat light emitting body using the optical fiber with improved luminous efficiency further comprising.
The method according to claim 8 or 9,

The light source unit is characterized in that the LED module,

The LED module is a method of manufacturing a flexible flat light emitting body using the optical fiber with improved luminous efficiency, characterized in that it comprises at least one of a white light LED module, a multi-color light emitting LED module.
The method of claim 9,

The control unit includes any one of a color conversion unit for converting the color of the LED module or a timing unit for adjusting the color conversion time of the LED module,

A method of manufacturing a flexible planar light emitting body using an optical fiber having improved luminous efficiency, comprising a color converting unit and a timing unit.
A plurality of optical fibers for passing light; And

Consists of silicon containing the plurality of optical fibers to expose the ends of the plurality of optical fibers,

Flexible planar light emitting body using the optical fiber with improved luminous efficiency, characterized in that the ends of the plurality of optical fibers are thermoformed so that the light emission angle can be expanded.
The method of claim 12,

Flexible planar light emitting body using the optical fiber with improved luminous efficiency, characterized in that the fabric or leather attached to one surface of the silicon exposed ends of the plurality of optical fibers.
A plurality of optical fibers for passing light; And

Consists of silicon containing the plurality of optical fibers to expose the ends of the plurality of optical fibers,

Flexible plane light-emitting body using an optical fiber with improved luminous efficiency, characterized in that the angle between the optical fiber and the surface exposed end of the optical fiber is 40 to 70 degrees so that the light emitting area can be expanded.
The method of claim 14,

Flexible planar light emitting body using the optical fiber with improved luminous efficiency, characterized in that the fabric or leather attached to one surface of the silicon exposed ends of the plurality of optical fibers.