KR20110011060A - Portable terminal and manufacturing method of portable terminal case - Google Patents

Abstract

PURPOSE: A portable terminal for increasing the brightness of light is provided to implement a slim case illumination structure by arranging a light guide plate and a light emitting diode inside a base layer. CONSTITUTION: A portable terminal includes a case and an electronic component. The case includes a base layer(131), an LED(Light Emitting Diode)(132), a light transmitting film(133) and a light guide plate(134). The LED implements lighting effect inside the base layer. The light transmitting film is formed outside the base layer. The light guide plate is located in the rear of the light transmitting film. The light guide plate guides the light to the light transmitting film.

Description

Method of manufacturing a mobile terminal and a case for a mobile terminal {PORTABLE TERMINAL AND MANUFACTURING METHOD OF PORTABLE TERMINAL CASE}

The present invention relates to a mobile terminal and a manufacturing method of the case to which the case can be implemented lighting effect.

A portable terminal is a portable device that is portable and has one or more functions such as voice and video calling, information input and output, and data storage.

As the functions are diversified, for example, the mobile terminal has complex functions such as taking a picture or video, playing a music or video file, playing a game, and receiving a broadcast, and is realized in the form of a comprehensive multimedia player. It is becoming.

Many new attempts are being applied to these multimedia devices in terms of hardware or software to implement complex functions. For example, a user interface environment is provided for a user to easily and conveniently search for or select a function.

In addition, while the portable terminal is regarded as a personal portable product for expressing its individuality, various designs are required. Recently, as a structure for implementing lighting effects on a case in a portable terminal, information or aesthetic effects are provided to a user.

The present invention has been made in view of the above point, to provide a case lighting structure that can implement a slim thickness and bright lighting effects.

The present invention for realizing the above object includes a case for forming the appearance of the terminal body, and the electronic components embedded in the inside of the case, the case is disposed in the base layer, the base layer and the lighting effect A light emitting device for implementing the light emitting device, a light transmitting film formed on an outer surface of the base layer, and a light guide plate disposed inside the base layer so as to be located behind the light transmitting film and guiding light from the light emitting device to the light transmitting film. Disclosed is a portable terminal comprising a.

The base layer may be formed of a synthetic resin material and may be fusion-bonded with the light transmissive film and the light guide plate.

The base layer may be formed by insert injection molding the light transmissive film and the light guide plate while being inserted into an injection mold.

The light emitting device may be disposed adjacent to one end of the light guide plate or on a mounting groove formed on a rear surface of the light guide plate.

On the other hand, the present invention includes a base layer, a light emitting device disposed inside the base layer, a light-transmitting film formed on the outer surface of the base layer, and a light guide plate for guiding light from the light-emitting device to the light-transmitting film A method of manufacturing a case for a mobile terminal, the method comprising: attaching the light guide plate to a rear surface of the light transmissive film, forming the base layer by molding the light transmissive film and the light guide plate while being inserted into an injection mold; Disclosed is a manufacturing method of a case for a portable terminal, comprising the step of assembling the light emitting device on one side.

In another aspect, the present invention provides a portable device comprising a base layer, a light emitting device disposed inside the base layer, a light transmissive film formed on an outer surface of the base layer, and a light guide plate for guiding light from the light emitting device to the light transmissive film. A method of manufacturing a case for a terminal, comprising: attaching the light guide plate to a rear surface of the light transmissive film, placing the light emitting device at a mounting position, and molding the light transmissive film, the light guide plate, and the light emitting device into an injection mold. Disclosed is a method of manufacturing a case for a portable terminal, comprising the step of forming the base layer.

The present invention can implement a case lighting structure of a very slim thickness by disposing the light emitting element and the light guide plate inside the base layer, and provides a structure that can increase the brightness of light emitted to the outside.

In addition, the present invention provides a case structure in which a base layer, a light emitting device, a light-transmitting film, a light guide plate, and the like are integrated by an insert injection process, thereby providing a more robust and easy to assemble shape.

Hereinafter, a portable terminal according to the present invention will be described in detail with reference to the drawings. The suffixes "module" and "unit" for components used in the following description are merely given in consideration of ease of preparation of the present specification, and do not impart any particular meaning or role by themselves. Therefore, it should be noted that "module" and "unit" may be used interchangeably.

The portable terminal can be implemented in various forms. For example, the mobile terminal described in the present specification may be a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, or the like. It can be implemented as.

1 is a front perspective view of an example of a mobile terminal according to the present invention;

Referring to FIG. 1, a portable terminal includes a first body 110 and a second body 120 that are foldably coupled to each other. However, the present invention is not limited to the portable terminal of the "folder type" disclosed in FIG.

According to the present embodiment, the first body 110 and the second body 120 are rotatably connected through the hinge connecting portion 119. Inside the hinge connector 119, a cam device for providing an elastic force in the process of rotating the first body 110 and a connecting means for electrically connecting the first body 110 and the second body 120 to be provided. Can be.

A state in which the first body 110 is disposed to overlap with the second body 120 may be referred to as a folding configuration, and as shown in the drawing, the first body 10 may correspond to the second body 20. The exposed state of at least a portion of) may be referred to as an unfolding configuration.

The portable terminal operates mainly in the standby mode in the closed state, but the standby mode may be released by the user's operation. In addition, the portable terminal operates mainly in a call mode or the like in an open state, but may be switched to a standby mode by a user's operation or a lapse of a predetermined time.

The case (casing, housing, cover, etc.) forming the exterior of the first body 110 is formed by the front case 111 and the rear case 112. Various electronic components are embedded in the space formed by the front case 111 and the rear case 112.

At least one intermediate case may be further disposed between the front case 111 and the rear case 112.

The cases may be formed by injecting synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The display body 113, the first sound output unit 114, the first image input unit 115, and the like may be disposed on the first body 110, specifically, the front case 111.

The display unit 113 includes a liquid crystal display (LCD) module, an organic light emitting diodes (OLED) module, and the like, which visually express information, and the display unit 113 further includes a touch screen. The input of information may also be enabled.

The first sound output unit 114 may be implemented in the form of a receiver or a speaker, and the first image input unit 115 may be in the form of a camera module for capturing an image or a video for a user. Can be implemented.

Like the first body 110, the front case 121 and the rear case 122 may form a case of the second body 120. First and second manipulation units 123 and 124 may be disposed on the front surface of the second body 120, specifically, the front case 121.

The third manipulation unit 125, the sound input unit 126, and the interface 127 may be disposed in at least one of the front case 121 and the rear case 122.

The first to third manipulation units 123, 124, and 125 may be collectively referred to as manipulating portions, and may be employed in any manner as long as the user is tactile in a tactile manner.

For example, the operation unit may be implemented as a dome switch or a touch screen that can receive a command or information by a user's push or touch operation, a touch pad, a wheel that rotates keys, a jog method, or a method such as a joystick. It can also be implemented as.

In the functional aspect, the first operation unit 123 is for inputting a command such as start, end, scroll, etc., and the second operation unit 124 is for inputting numbers, letters, symbols, and the like. In addition, the third manipulation unit 125 may operate as a hot-key that performs a special function such as activation of the first image input unit 115.

The sound input unit 126 may be implemented in the form of, for example, a microphone to receive a user's voice, other sounds, and the like.

The interface 127 serves as a passage for allowing a portable terminal related to the present invention to exchange data with an external device. For example, the interface 127 is a wired or wireless connection, a connection terminal for connecting to the earphone, a port for short-range communication (for example, an infrared port (IrDA port), Bluetooth port (Bluetooth port), wireless LAN port ( wireless LAN port), or at least one of power supply terminals for supplying power to the mobile terminal.

The interface 127 may be a card socket for receiving an external card such as a subscriber identification module (SIM) or a user identity module (UIM), a memory card for storing information.

2 is a rear perspective view of the portable terminal of FIG. 1.

Referring to FIG. 2, a second image input unit 116 may be additionally mounted on the rear case 112 of the first body 120.

The second image input unit 116 may be a camera having a photographing direction substantially opposite to that of the first image input unit 115 (see FIG. 1) and having different pixels from the first image input unit 115.

For example, the first video input unit 115 has a low pixel so that it is easy to take a picture of a user and transmit it to a counterpart in a video call, and the second video input unit 116 immediately photographs a general subject. It is preferable to have a high pixel because it is not transmitted in many cases.

On the other hand, when the second image input unit 116 is not provided separately, the first image input unit 115 may be rotatably formed to be able to shoot up to the shooting direction of the second image input unit 128.

The second sound output unit 128 may be further disposed on the rear case 122 of the second body 120. The second sound output unit 128 may implement a stereo function together with the first sound output unit 114 (refer to FIG. 1), and may be used for a call in the speakerphone mode.

The power supply unit 129 for supplying power to the portable terminal is mounted on the rear case 122 side. The power supply unit 129 may be detachably coupled for charging, for example, as a rechargeable battery.

3 is a front view of a mobile terminal according to an embodiment of the present invention, and FIG. 4 is an exploded perspective view of the mobile terminal shown in FIG.

Referring to Figure 3, the case is provided with a light emitting element 132 for implementing the lighting effect. In the present embodiment, the light emitting device 132 is provided in the rear case 111 of the first body 110 as an example. However, the present invention is not limited thereto, and the light emitting device 132 may be provided at various positions such as the rear case 122 of the second body 120 according to a position for implementing the lighting effect.

Hereinafter, the light emitting device will be described based on the inside of the rear case 112 of the first body 110, but the configuration of the rear case 112 described below may be variously modified.

The light emitting device 132 according to the present embodiment generates light to implement a constant lighting effect through the rear case 112. The light emitting device 132 may be used such as a light emitting diode (LED) to reduce the power loss and reduce the unit cost.

The light emitting device 132 is disposed inside the rear case 112, and the light emitting device 132 is indicated by dotted lines in FIGS. 3 and 4. A plurality of light emitting devices 132 may be disposed on the rear case 112. The drawings exemplify that the plurality of light emitting devices 132 are disposed along the width direction of the first body 110.

Referring to FIG. 4, a display module 113a, a camera module 114a, a speaker module 115a, and the like are mounted in a space between the front case 111 and the rear case 112. These components may be connected to the main board of the second body 120 by the flexible circuit board 118. The flexible circuit board 118 electrically connects the light emitting device 132 and the main board in the rear case 112.

Hereinafter, a detailed configuration of the rear case 112 provided with the light emitting element 132 will be described with reference to FIGS. 5 and 6. FIG. 5 is a cross-sectional view of the front case along the IV-IV line of FIG. 4, and FIG. 6 is a view illustrating an operating state of the light emitting device and the light guide plate illustrated in FIG. 5.

Referring to FIG. 5, the rear case 112 includes a base layer 131, a light emitting device 132, a light transmissive film 133, and a light guide plate 134.

The base layer 131 forms an appearance of the rear case 112 and functions as a base member that provides durability to the front case 110. The base layer 131 may be formed of a synthetic resin material.

The light emitting device 132 is disposed in the base layer 131, and generates light to implement a constant lighting effect under the control of the controller 170 (see FIG. 11).

The light emitting device 132 may be mounted on the printed circuit board 135. The printed circuit board 135 may be disposed behind the light emitting device 132 and may have a rigid substrate or a flexible substrate. A light emitting device 132 is mounted on the front side of the printed circuit board, and a connector 136 for electrical connection is provided on the back side. The flexible circuit board 118 connected to the second body 120 is connected to the connector 136.

The light transmissive film 133 is formed of a light transmissive material so that the light emitted from the light emitting element 132 can travel to the outside of the rear case 112, and is formed on the outer surface of the base layer 131. Here, the concept of 'transparent material' is a concept including 'semi-transparent material' and 'transparent material'.

The light transmissive film 133 is preferably formed to be translucent so that internal components, for example, the light emitting device 132 and the light guide plate 134, are not easily seen from the outside. The light transmissive film 133 not only transmits the light emitted from the light emitting element 132 but also functions as a protective layer for protecting the base layer 134.

The light guide plate 134 is disposed inside the base layer 131 to be positioned behind the light transmissive film 133, and serves to guide light from the light emitting element 132 to the light transmissive film 133.

The present embodiment illustrates a structure in which the light emitting element 132 is disposed adjacent to one end of the light guide plate 134.

Inside the base layer 131, a first space 141 (see FIG. 7B) in which the light emitting device 132 and the light guide plate 134 are located, and a second space 142 and 7B in which the printed circuit board 135 is located. Can be formed). Here, the first space 141 and the second space 142 may be formed along the thickness direction of the base layer 131, respectively.

The first space 141 is formed such that an area of the front surface of the base layer 131 is opened, and thus the light emitting device 132 and the light guide plate 134 are disposed to face the light transmissive film 133.

The second space 142 may be formed such that an area of the rear surface of the base layer is opened so that the rear surface of the printed circuit board 135 is exposed. Here, only the connector 136 of the printed circuit board 135 is exposed, and the rest of the structure will be possible to cover the cover by the base layer 131.

6 shows a path of light emitted from the light emitting element 132. The light guide plate 134 may be formed with a pattern 134a for changing a path of light emitted from the light emitting device 1132. The pattern 134a may be formed to have irregularities on the rear surface of the light guide plate 134. As shown in FIG. 6, the light emitted from the light emitting element 132 is reflected by the pattern 134a of the light guide plate 134 so that its traveling direction is changed to face the front of the rear case 112.

In the case structure of the present invention described above, the case lighting structure having a very slim thickness can be realized by disposing the light emitting element 132 and the light guide plate 134 in the base layer 131. In addition, since the light emitting device 132 and the light guide plate 134 are disposed as close to the outer surface of the rear case 112 as possible, the brightness of light emitted to the outside of the rear case 112 may be increased.

In addition, since all the components for the lighting effect are disposed in the rear case 112, the assembly of the front case 111 and the rear case 112 provides convenience of assembly.

7A to 7C are views illustrating a manufacturing method of a case related to an embodiment of the present invention. Hereinafter, a method of manufacturing a case having the structure shown in FIG. 5 will be described.

First, the light guide plate 134 is attached to the rear surface of the light transmissive film 133 as shown in FIG. 7A. The light guide plate 134 may be attached to the light transmissive film 133 by an adhesive or an adhesive film.

Next, as shown in FIG. 7B, the base layer 131 is formed on the rear surface of the light transmissive film 133. The base layer 131 may be formed by 'insert injection' or 'in mold injection', in which the light transmissive film 133 having the light guide plate 133 attached thereto is inserted into an injection mold. In this case, the injection mold should be formed to implement the first and second spaces 141 and 142 described above, and a liquid synthetic resin is injected into the injection mold to form the base layer 131.

According to insert injection, the base layer 131 is fusion-bonded with the light transmissive film 133 and the light guide plate 134. Specifically, the base layer 131 is the surface facing the light-transmitting film 133 and the light guide plate 134 are fusion-bonded with them, and thus the base layer 131 having a different material, the light-transmitting film 133, the light guide plate 134 forms an integrated structure.

According to this process, the bonding strength of each component can be strengthened, a more robust structure can be realized, and the thickness of the case can be minimized.

Next, as shown in FIG. 7C, when the printed circuit board 135 on which the light emitting device 132 is mounted is assembled such that the light emitting device 132 is positioned on one side of the light guide plate 134, the manufacturing process of the case is completed.

8A to 8C are views illustrating a manufacturing method and a configuration of a case related to another embodiment of the present invention. In the drawings, the same or similar components as the previous embodiments are denoted by the same reference numerals as the previous embodiments, and a detailed description thereof will be replaced with the above description.

First, the light guide plate 234 is attached to the rear surface of the light transmissive film 233 as shown in FIG. 8A, and then the light emitting device 232 is disposed on one side of the light guide plate 234 as shown in FIG. 8B. In this case, the printed circuit board 235 on which the light emitting device 232 is mounted may be positioned on the rear surface of the light guide plate. In this embodiment, a flexible substrate is used as the printed circuit board to further reduce the thickness of the case.

Next, as shown in FIG. 8C, the base layer 231 is formed on the rear surface of the light transmissive film 233. The base layer 231 is formed by molding the light transmissive film 233, the light guide plate 234, and the light emitting element 232 inserted into an injection mold.

According to the present exemplary embodiment, the light emitting device 232 and the printed circuit board 235 may be integrated with the base layer 231, the light transmissive film 233, and the light guide plate 234 in addition to the previous embodiment.

9A to 9C are views illustrating a manufacturing method and a configuration of a case related to still another embodiment of the present invention. These drawings have also been given the same reference numerals for the same or similar constructions to the previous embodiments.

This embodiment shows a modification of the mounting position of the light emitting element 332. According to the present embodiment, the light emitting element 332 is disposed on the mounting groove 334b formed on the rear surface of the light guide plate 334. Accordingly, it is possible to prevent the light emitting device 332 from being exposed to the liquid synthetic resin when the insert is injected.

Referring to the manufacturing process, the light guide plate 334 is attached to the rear surface of the light transmissive film 333 as shown in FIG. 9A, and then the light emitting device 332 is disposed in the mounting groove 334b of the light guide plate 334 as shown in FIG. 9B. Let's do it. In this case, the printed circuit board 335 on which the light emitting element 332 is mounted may be attached to the rear surface of the light guide plate 334.

Next, as shown in FIG. 9C, the base layer 231 is formed on the rear surface of the light transmissive film 333. The base layer 231 is formed by insert injection molding the light transmissive film 333, the light guide plate 334, and the light emitting element 332 and the printed circuit board 335 while being inserted into an injection mold, as in the previous embodiment. .

10 is a rear perspective view of a portable terminal showing another application example of a case related to the present invention.

The figure illustrates a structure of a bar type portable terminal, which includes a terminal body 410. The battery 429 may be detachably mounted on the rear surface of the terminal body 410.

The battery cover 430 covering the battery 429 may be detachably attached to the rear surface of the terminal body 410. The concept of disposing a light emitting device and a light guide plate in the case described above may be equally applied to the battery cover 430.

The light emitting device 432 may be provided inside the battery cover 430, and in this case, a connection terminal 401 for supplying power to the light emitting device 432 may be provided on the rear surface of the terminal body 410. .

As described above, the structure of the present invention may be modified as various forms of a case forming the terminal body.

11 is a block diagram of a portable terminal according to the present invention.

Referring to FIG. 11, a mobile terminal according to an embodiment of the present invention includes a wireless communication module 171, an operation unit 123, 124, 125, an image input unit 115, 116, an audio input unit 126, a display unit 113, and an audio output unit. It includes the 114, 128, the sensing unit 176, the interface 127, the broadcast receiving module 175, the memory 174, the power supply unit 129, the control unit 170.

The controller 170 typically controls the overall operation of the mobile terminal. For example, perform related control and processing for voice calls, data communications, video calls, and the like.

The wireless communication module 171 transmits / receives a radio signal with a mobile communication base station through an antenna. For example, under the control of the control unit 170, the transmitter 173 is responsible for transmitting and receiving voice data, text data, image data, and control data, and modulates and transmits a signal to be transmitted, and a receiver for demodulating the received signal. 172.

The operation units 123, 124, and 125 are configured as shown in FIG. 1 to provide the control unit 160 with key input data input by the user for controlling the operation of the terminal. The operation units 123, 124, and 125 are composed of a dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like.

The image input units 115 and 116 process image frames such as still images or moving images obtained by an image sensor in a video call mode or a photographing mode. The processed image frame is converted into image data displayable on the display unit 113 and output to the display unit 113.

The image frames processed by the image input units 115 and 116 are stored in the memory 174 or transmitted to the outside through the wireless communication module 171 under the control of the controller 170.

The sound input unit 126 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. In the case of the call mode, the processed voice data is converted into a form transmittable to the mobile communication base station through the wireless communication module 171 and output to the wireless communication module. In the recording mode, the processed voice data is output to be stored in the memory 174.

The sound input unit 126 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The display unit 113 displays and outputs information processed by the portable terminal, for example, when the portable terminal is in a call mode, the UI (User Interface) or GUI (Graphic User Interface) associated with the call is controlled by the control unit 170. When the mobile terminal is in a video call mode or a photographing mode, the image is displayed and output by the control of the controller 170. The display unit 113 includes a touch screen. In addition to the output device, it is used as an input device.

The sound output units 114 and 128 are provided to the sound data or the memory 174 received from the wireless communication module 161 under the control of the control unit 170 in a call signal reception, a call mode or a recording mode, a voice recognition mode, and a broadcast reception mode. The stored sound data is converted and output to the outside.

In addition, the sound output units 114 and 128 output sound signals related to functions (eg, call signal reception sound, message reception sound, etc.) performed in the portable terminal. The sound output units 114 and 128 include a speaker, a receiver, a buzzer, and the like.

The sensing unit 176 generates a sensing signal for controlling the operation of the portable terminal by detecting the current state of the portable terminal such as the open / closed state of the portable terminal, the position of the portable terminal, the presence or absence of a user contact. For example, by sensing whether the portable terminal is in a folded state or an unfolded state, the sensing result is output to the controller 170 to control the operation of the terminal. In addition, it is responsible for sensing functions related to whether the power supply unit 129 is powered, whether the interface 126 is coupled to an external device.

The interface 127 may be connected to a mobile terminal such as a wired / wireless headset, an external charger, a wired / wireless data port, a card socket (eg, a memory card, a SIM / UIM card), or the like. It serves as an interface with the device. The interface 127 receives data from an external device or receives power and transfers the data to each component inside the portable terminal or transmits data within the portable terminal to the external device.

The memory 174 may store a program for processing and controlling the controller 170, and provides a function for temporarily storing input / output data (eg, a phone book, a message, a still image, a video, etc.). It can also be done.

In addition, the memory 174 stores a program for controlling the operation of the portable terminal according to the present invention.

This memory 174 includes concepts such as hard disks, card type memory (eg SD or XD memory, etc.), flash memory, RAM, ROM, and the like, which are generally known.

The broadcast receiving module 175 receives a broadcast signal transmitted through a satellite or terrestrial wave, converts the broadcast signal into a broadcast data form that can be output to the sound output units 114 and 128 and the display unit 113, and outputs it to the controller 170. In addition, the broadcast receiving module 165 receives additional data related to the broadcast (for example, an EPG (electric program guide), a channel list, etc.). The broadcast data and additional data converted by the broadcast receiving module 175 may be stored in the memory 164.

The power supply unit 129 receives an external power source and an internal power source under the control of the controller 170 to supply power for operation of each component.

The portable terminal is not limited to the configuration and method of the embodiments described above, but the embodiments may be configured by selectively combining all or some of the embodiments so that various modifications can be made.

1 is a front perspective view of a mobile terminal according to an embodiment of the present invention;

2 is a rear perspective view of a mobile terminal according to an embodiment of the present invention;

3 is a front view of a mobile terminal according to an embodiment of the present invention.

4 is an exploded perspective view of the mobile terminal shown in FIG. 3;

5 is a cross-sectional view of the front case along the line IV-IV of FIG. 4;

FIG. 6 is a view illustrating operating states of the light emitting device and the light guide plate illustrated in FIG. 5.

7A to 7C are views illustrating a manufacturing method of a case related to an embodiment of the present invention.

8A to 8C are views showing a manufacturing method and a configuration of a case related to another embodiment of the present invention.

9A to 9C are views showing a manufacturing method and configuration of a case according to still another embodiment of the present invention.

10 is a rear perspective view of a portable terminal showing another application example of a case related to the present invention.

11 is a block diagram of a portable terminal according to the present invention.

Claims (11)

A case forming an appearance of the terminal body, and electronic components embedded in the case; The case, the base layer; A light emitting device disposed inside the base layer and configured to implement an illumination effect; A translucent film formed on an outer surface of the base layer; And And a light guide plate disposed inside the base layer so as to be positioned behind the light transmissive film and guiding light emitted from the light emitting element to the light transmissive film. The method of claim 1, The base layer is formed of a synthetic resin material, characterized in that the mobile terminal is fusion-bonded with the light-transmitting film and the light guide plate. The method of claim 1, The base layer is formed by insert injection molding the light-transmitting film and the light guide plate while being inserted into an injection mold. The method of claim 1, The light emitting device is a portable terminal, characterized in that disposed adjacent to one end of the light guide plate. The method of claim 1, The light emitting device is a portable terminal, characterized in that disposed on the mounting groove formed on the back of the light guide plate. The method of claim 1, The light guide plate is formed with a pattern for changing the path of the light emitted from the light emitting device. The method of claim 1, The light emitting device is mounted, the portable terminal, characterized in that further comprising a printed circuit board disposed behind the light emitting device. The method of claim 7, wherein And a first space in which the light emitting element and the light guide plate are located, and a second space in which the printed circuit board is located, in the base layer. The method of claim 8, The first and second spaces are formed in the thickness direction of the base layer, respectively. A base layer, a light emitting device disposed inside the base layer, a light transmitting film formed on an outer surface of the base layer, and a light guide plate for guiding light from the light emitting device to the light transmitting film. In the manufacturing method, Attaching the light guide plate to a rear surface of the light transmissive film; Forming the base layer by molding the light-transmitting film and the light guide plate while being inserted into an injection mold; And And manufacturing the light emitting device on one side of the light guide plate. A base layer, a light emitting device disposed inside the base layer, a light transmitting film formed on an outer surface of the base layer, and a light guide plate for guiding light from the light emitting device to the light transmitting film. In the manufacturing method, Attaching the light guide plate to a rear surface of the light transmissive film and disposing the light emitting element at a mounting position; And And forming the base layer by molding the light-transmitting film, the light guide plate, and the light emitting element while being inserted into an injection mold.

Images