KR101882258B1 - Mobile terminal and method for manufacturing the same - Google Patents

Abstract

The present invention relates to a method of manufacturing a mobile terminal and a mobile terminal, and more particularly, to a mobile terminal and a method of manufacturing a mobile terminal, which can form patterns of various colors in a case, .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mobile terminal,

The present invention relates to a method of manufacturing a mobile terminal and a mobile terminal, and more particularly, to a mobile terminal and a method of manufacturing a mobile terminal, which can form patterns of various colors in a case, .

The terminal can move And may be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

Particularly, a structural part of a mobile terminal (i.e., portable terminal) to be improved includes a case of a mobile terminal. The case of the mobile terminal should be able to have a variety of textures in order to improve the touch and be colored in various colors in order to improve the aesthetics.

However, according to the conventional method of manufacturing a mobile terminal and a mobile terminal, various colors can not be realized in a single case, and therefore, there is a problem that the method is manufactured in a single color only. Further, according to the related art, there is a problem that a new mold is required to change the height, shape, and position of a pattern by using a mold as an essential device in order to form a pattern in the case. In addition, a mold for forming a pattern is not a general mold but a precision machined mold, which is expensive and requires a great deal of time for manufacturing, and has a problem of poor durability due to precision machining, resulting in low mold life .

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a mobile terminal and a method of manufacturing a mobile terminal that solve the problems of the related art.

Specifically, it is an object of the present invention to provide a mobile terminal and a method of manufacturing a mobile terminal, which can form a pattern of various colors in a case and allow the case to have various textures.

Another object of the present invention is to provide a mobile terminal and a method of manufacturing a mobile terminal that can form patterns of various shapes on a case without using a precision machining mold.

It is still another object of the present invention to provide a mobile terminal and a method of manufacturing the mobile terminal in which it is easy to change the shape, height, size and color of the pattern formed on the case.

According to an aspect of the present invention, there is provided a mobile terminal including a case, the case including: a base material layer made of metal or plastic; And a digital printing layer stacked on at least one side of the base material layer to form a pattern on the case, wherein the digital printing layer is formed on the surface of the case in whole or in part, at least two And at least two texture regions having different thicknesses and different thicknesses from each other.

According to another aspect of the present invention, there is provided a method of manufacturing a mobile terminal having a case, the method comprising: coating a top coat layer made of polymer on a base material layer of the case; Determining at least two colored regions having hues different from each other in whole or in part on the upper portion of the ground color upper layer; Determining at least two texture areas having a thickness different from each other in whole or in part on the upper part of the background color upper layer; And digital printing the color tinted upper layer based on the step of determining the colored area, wherein the step of digital printing is performed based on the step of determining the coloring area and the step of determining the texture area And the number of digital printing layers in the same coloring area is equal to the predetermined number of layers.

According to the present invention, it is possible to form a pattern having various colors on a case, and a case having various textures can be manufactured.

Further, the present invention can form patterns of various shapes on the case without using a precision machined mold. Thus, the present invention can reduce the cost and time required for manufacturing a mold.

Further, it is easy to change the shape, height, size and color of the pattern formed on the case of the present invention. Thus, the present invention can easily manufacture a case having various aesthetics and designs in accordance with the user's taste.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2A is a front perspective view of a mobile terminal according to an embodiment of the present invention.
2B is a rear perspective view of a mobile terminal according to an embodiment of the present invention.
3 is a schematic perspective view of a case of a mobile terminal according to the present invention.
4 is a schematic cross-sectional enlarged view of the case of Fig.
5A to 5G are schematic cross-sectional enlarged views of a method of manufacturing a mobile terminal according to the present invention.
6A to 6D illustrate a case according to the present invention by way of example.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), navigation and the like. However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in FIG. 1 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast-related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

The position information module 115 is a module for obtaining the position of the mobile terminal, and a representative example thereof is a Global Position System (GPS) module.

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes an image frame such as a still image or moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, and a 3D display.

Some of these displays may be transparent or light transmissive so that they can be seen through. This may be referred to as a transparent display. Typical examples of the transparent display include TOLED (Transparent OLED, transparent organic light emitting diode) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces.

(Hereinafter, referred to as a 'touch screen') in which a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') form a mutual layer structure, It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is surrounded by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The audio output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

The haptic module 154 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of the vibration generated by the hit module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

The memory 160 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 160 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen. In addition, the memory 160 may store various control variables, and in particular, the memory 160 may store the control value of the barrier layer as a control parameter of a length determining value of a light blocking part of the barrier layer corresponding to the distance between the viewer and the display part And the gap determination value and the displacement determination value corresponding to the deflection angle formed by the position of the center of the viewer's binocular with respect to the vertical center axis of the display unit.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data to the external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

When the mobile terminal 100 is connected to an external cradle, the interface unit may be a path through which power from the cradle is supplied to the mobile terminal 100, or various command signals input by the user to the cradle may be transmitted It can be a passage to be transmitted to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, May be implemented by the control unit 180.

According to a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. The software codes are stored in the memory 160 and can be executed by the control unit 180. [

2A is a front perspective view of a mobile terminal according to an embodiment of the present invention.

The disclosed mobile terminal 100 has a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The body includes a case (a casing, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a front case 200 'and a rear case 200. Various electronic components are embedded in a space formed between the front case 200 'and the rear case 200. At least one intermediate case may be additionally disposed between the front case 200 'and the rear case 200.

The cases may be formed by injection molding a synthetic resin, or may be formed to have a metal material such as stainless steel (STS) or titanium (Ti) or the like.

A display unit 151, an audio output unit 152, a camera 121, user input units 130/131 and 132, a microphone 122, an interface 170, and the like are disposed in a front body 200 ' .

The display unit 151 occupies most of the main surface of the front case 200 '. A sound output unit 151 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132 and the interface 170 may be disposed on the side surfaces of the front case 200 'and the rear case 200.

The user input unit 130 is operated to receive a command for controlling the operation of the portable terminal 100 and may include a plurality of operation units 131 and 132. The operation units 131 and 132 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the user operates in a tactile manner.

The contents inputted by the first or second operation unit 131 or 132 may be variously set. For example, the first operation unit 131 receives commands such as start, end, scroll, and the like, and the second operation unit 132 controls the size of the sound output from the sound output unit 152 or the size of the sound output from the display unit 151 To the touch recognition mode of the touch screen.

2B is a rear perspective view of the mobile terminal shown in FIG. 2A.

Referring to FIG. 2B, a camera 121 'may be further mounted on the rear surface of the terminal body, that is, the rear case 200. The camera 121 'may have a photographing direction substantially opposite to the camera 121 (see FIG. 2A), and may be a camera having different pixels from the camera 121.

For example, the camera 121 may have a low pixel so that the face of the user can be photographed and transmitted to the other party in case of a video call or the like, and the camera 121 ' It is preferable to have a large number of pixels. The cameras 121 and 121 'may be installed in the terminal body so as to be rotatable or pop-upable.

A flash 123 and a mirror 124 are additionally disposed adjacent to the camera 121 '. The flash 123 illuminates the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to illuminate the user's own face or the like when the user intends to shoot himself / herself (self-photographing) using the camera 121 '.

An acoustic output 152 'may be additionally disposed on the rear surface of the terminal body. The sound output unit 152 'may implement the stereo function together with the sound output unit 152 (see FIG. 2A), and may be used for the implementation of the speakerphone mode during a call.

In addition to the antenna for a call or the like, a broadcast signal reception antenna 124 may be additionally disposed on the side of the terminal body. The antenna 124 constituting a part of the broadcast receiving module 111 (see FIG. 1) may be installed to be able to be drawn out from the terminal body.

A power supply unit 190 for supplying power to the portable terminal 100 is mounted on the terminal body. The power supply unit 190 may be built in the terminal body or may be detachable from the outside of the terminal body.

For convenience of explanation, it is assumed that the mobile terminal referred to below includes at least one of the components shown in FIG. In particular, the mobile terminal is configured to include a casing forming the appearance. In particular, the case may be composed of a front case, a rear case, and a battery cover, but in the present invention, only the rear case will be described in order to avoid duplication of description. That is, the manufacturing method of the mobile terminal and the mobile terminal according to the present invention can be applied to both the front case, the rear case, and the battery cover.

3 is a schematic perspective view of a case 200 of the mobile terminal 100 according to the present invention. 4 is a schematic cross-sectional enlarged view of the case 200 of FIG.

3 and 4, the mobile terminal 100 according to the present invention includes a case 200, and the case 200 includes a base material layer 210 made of metal or plastic; And a digital printing layer 240 laminated on at least one side of the base material layer 210 to form a pattern on the case 200.

The digital printing layer 240 is a layer formed by patterning the case 200 on the principle of a digital printer and the digital printing layer 240 may be formed on the surface of the case 200 in whole or in part, At least two colored regions having a color and at least two or more texture regions having different thicknesses (see Figs. 7A to 7H).

The base material layer 210 of the case 200 is made of metal or plastic. The base material layer 210 of the case 200 is manufactured by a method such as injection molding or extrusion using a mold manufactured to match the shape of the case 200. In the present invention, a mold is used only when the base material layer 210 is manufactured. This eliminates the need for the precision machining of the mold, thereby reducing the manufacturing cost of the mold and shortening the manufacturing time of the mold when the life of the mold is shortened or when the shape of the case 200 is changed.

A topcoat layer 220 may be stacked on top of the base layer 210 to provide a basic background color in the completed case 200. The ground color upper layer 220 is made of a polymer and can be selected from various colors and has one color. The ground color upper layer 220 is deposited on the upper side of the base material layer 210 by a spraying method or a coating method.

A first primer layer may be laminated on the base layer 210 so that the digital printing layer 240 can be easily adhered to the base layer 210. When the digital printing layer 240 is directly formed on the base material layer 210 (that is, metal or plastic), the base material layer 210 and the digital printing layer 240 are made of materials having different physical properties from each other. No, it can easily be peeled off. To prevent this, a surfactant or release adhesive is applied to the base material layer 210, which is the first primer layer 230.

The first primer layer 230 may preferably be composed of a light-transmitting material.

At least one digital printing layer 240 is provided on the first primer layer 230. The digital printing layers 241a, 242a, 243a, 241b, 242b, and 241c having at least one of the above forms a pattern on the case 200. [

The digital printing layer 240 is formed by jetting special colored ink on a line toward the case 200 from the ink ejection head of the digital printer according to the size, color and shape of the pattern to be formed on the case 200. Here, the special colored ink is an ultraviolet curable resin. That is, the digital printing layer 240 is formed of an ultraviolet curing resin.

Since the digital printing layer 240 is formed line by line in the ink ejection head, various patterns of various shapes and heights can be formed, and patterns of various colors can be formed for each region. That is, the digital printing layer 240 may have at least two colored regions having different hues wholly or partly different from each other on the surface of the case 200, and at least two or more texture regions having different thicknesses.

For example, as shown in FIG. 4, the digital printing layer 240 includes three coloring regions (denoted as a, b, c in the figure, i.e., 241a, 242a, 243a, 241b, 242b and 241c. The coloring region may be formed by locating the ink ejection head in a coloring region to be colored and then spraying an ultraviolet curable resin having a hue corresponding to the coloring region to the base material layer 210 or the background color upper layer 220 line by line .

The first colored region 241c is formed by performing only one digital printing with a first color ultraviolet curable resin and the second colored regions 241b and 242b are formed by performing ultraviolet curing of a second color different from the first color And the third coloring regions 241a, 242a, and 243a are formed by performing a digital printing twice on the second coloring region with a resin, and the third coloring regions 241a, 242a, and 243a are formed by a third coloring ultraviolet- And three times of digital printing in three coloring regions. Since the number of times of digital printing is different between the first coloring region 241c, the second coloring regions 241b and 242b and the third coloring regions 241a and 242a and 243a, This results in the formation of texture regions of different thicknesses.

Of course, texture regions of different thicknesses may be formed by performing digital printing at different times the colored regions of the same color. For reference, the numeral portion of the digital printing layer shown in the figure indicates the number of layers, and the lower-case part of English indicates the color of the ultraviolet curable resin.

In this way, the digital printing layer has different coloring regions and different texture regions, so that the case 200 can be formed with a variety of patterns in various colors, and the case 200 having various textures can be manufactured. In addition, since the pattern is formed by the digital printing method, it is possible to form patterns of various shapes in the case 200 without using a precision machining mold, thereby saving the cost and time required for the production of the mold. In addition, since the shape, height, size and color of the pattern to be formed on the case 200 can be easily changed and stored in the control unit of the digital printer, the shape, height, size and color of the pattern formed on the case 200 can be changed It is easy to do. This makes it possible to easily manufacture the case 200 having various aesthetics and designs according to the user's taste.

A second primer layer 250 stacked on the digital printing layer and a clear layer 260 stacked on the second primer layer 250 may be further stacked on the digital printing layer.

The second primer layer 250 is a release adhesive layer that allows the clear layer 260 to be easily adhered to the digital printing layer similarly to the first primer layer. When the clear layer 260 is formed directly on the digital printing layer (i.e., ultraviolet ray hardening resin), since the digital printing layer and the clear layer 260 are made of materials having different physical properties from each other, they do not adhere to each other, have. To prevent this, a surfactant or release adhesive is applied to the digital printing layer, which is the second primer layer 250.

The second primer layer 250 may preferably be composed of a light-transmitting material.

The clear layer 260 is specifically a UV clear layer 260, and is a coating layer made of a light-transmitting material. The clear layer 260 is made of a polymer such as plastic. The clear layer 260 acts as a protective layer as an outermost layer of the case 200 and improves the abrasion resistance of the case 200 and controls the degree of gloss of the case 200, Lt; / RTI >

5A to 5G are schematic cross-sectional enlarged views of a method of manufacturing the mobile terminal 100 according to the present invention.

5A to 5G, a method of manufacturing a mobile terminal 100 having a case 200 according to the present invention includes a step of forming a base color 210 made of polymer on a base material layer 210 of the case 200, Coating an upper layer 220; Determining at least two colored regions having hues different from each other in whole or in part on the upper portion of the ground color upper layer (220); Determining at least two texture regions having a thickness different from each other in whole or in part on the top of the ground color layer (220); And digital printing the coloration layer (220) based on the step of determining the coloration region.

The method of manufacturing the mobile terminal 100 according to the present invention will be described. First, as shown in FIG. 5A, the base material layer 210 forming the outer shape of the case 200 is formed using a metal mold. The mold is a mold in which a pattern or the like is not precisely machined.

5B, a topcoat layer 220 made of polymer is coated on the top of the base material layer 210 of the case 200. Next, as shown in FIG. The tinted upper layer 220 determines the overall color and aesthetics of the case 200. The ground color upper layer 220 is deposited on the upper side of the base material layer 210 by a spraying method or a coating method.

Thereafter, as shown in FIG. 5C, a first primer layer 230, which is a release adhesive, is laminated on the upper portion of the ground color upper layer 220. The first primer layer 230 is formed of a light transmitting material so that the top layer 220 and the digital printing layer to be laminated thereafter are adhered well.

The control unit of the digital printer according to the input signal inputted through the input unit of the digital printer then controls the color of the background color upper layer 220 or the first primer layer 230 at least two or more colored regions having hues different from each other in whole or in part.

The control unit of the digital printer according to the input signal input through the input unit of the digital printer may control the color of the background color upper layer 220 or the first primer layer 230 at least two or more texture regions having a thickness different from each other in whole or in part.

The step of determining the coloring region and the step of determining the texture region may be performed by a controller of the digital printer on the basis of the shape and texture of the pattern to be displayed on the case 200 (i.e., the height of the digital printing layer or the thickness of the pattern) In the digital printing step, the coordinates of the area in which the digital color printing is to be performed in the background color upper layer 220, the color to be colored in the coordinates, and the frequency of executing the digital printing step.

Then, as shown in FIG. 5D, the background color layer or the first primer layer 230 is digitally printed based on the step of determining the coloring region using a digital printer. For example, as shown in FIG. 5D, in the step of determining the coloring area, in accordance with the coordinates of the area for digital printing to be performed and the color to be colored in the coordinates determined by the control unit of the digital printer, (I.e., the determined first coordinate) 241c forms a digital printing layer colored with a first color, and the second colored region (i.e., the determined second coordinate) 241b forms a digital printing layer colored with a first color A digital printing layer colored with a different second color is formed, and a digital printing layer colored with a third color different from the first color and the second color is formed in the third colored region (i.e., the determined third coordinate) 241a do. That is, patterns of various colors other than monochromatic colors can be formed in the case 200.

The step of digital printing may include the step of determining the coloring region and the step of determining the texture area based on the coordinates of the area for performing the digital printing, the color to be colored in the coordinates, and the execution frequency of the digital printing step After the ultraviolet curing resin having at least two or more colors is sprayed on the ink jet head of the digital printer, ultraviolet rays are irradiated to the ultraviolet curing resin by the ultraviolet curing apparatus installed in the ink jet head to cure the ultraviolet curing resins . Accordingly, it is possible to shorten the time required for forming the pattern in the case 200, and subsequently form another color pattern immediately, or to superimpose a pattern of the same color in the same area without delay.

Thereafter, as shown in FIG. 5E, the digital printing step is repeated. Specifically, in the step of determining the coloring area, the coloring area is determined according to the coordinates of the area for digital printing to be performed by the control unit of the digital printer, the color to be colored in the coordinates, and the number of times of performing the digital printing step Determining the number of digital printing layers in the same colored area based on the step of determining the texture area, and determining the texture area). For example, as shown in FIG. 5E, the ink jet head of the digital printer does not additionally perform digital printing on the first colored region (i.e., the first coordinate determined) 241c, , The determined second coordinate) 241b, 242b is subjected to digital printing once more with an ultraviolet curing resin of a second color different from the first color, and the third colored region 241a, 242a , 243a) is further subjected to digital printing twice with an ultraviolet curable resin different from the first and second colors.

By performing digital printing at different times in the first coloring area, the second coloring area and the third coloring area in this way, a plurality of texture areas having patterns of different thicknesses can be formed in the case 200, It is possible to form patterns of various thicknesses (i.e., various textures) in the case 200.

Then, as shown in FIG. 5F, a second primer layer 250, which is a releasing adhesive, is laminated on the digital printing layer.

Thereafter, as shown in FIG. 5G, the clear layer 260 is laminated on the second primer layer 250.

6A to 6D illustrate a case 200 according to the present invention.

6A is a case 200 manufactured by performing digital printing a plurality of times on a base material layer 210 made of one mold using the manufacturing method of the mobile terminal 100 according to the present invention. 6A to 6D, the manufacturing method of the mobile terminal 100 according to the present invention does not use a precision-machined metal mold, and a pattern of various colors (specifically, see FIGS. 6C and 6D ), And a pattern of various textures (particularly, see FIG. 6B) can be formed on the case 200. In addition, the case 200 can be manufactured by customizing the case 200 according to the user's intention and taste, instead of fabricating the case 200 in a slim design.

It is to be understood that the configurations and methods of the above-described embodiments (mobile terminal 100) having the above-described (name) can be applied to a limited number of embodiments, All or a part of the above-described elements may be selectively combined.

100: mobile terminal 200: case
210: base material layer 220: first primer layer
230: ground color upper layer 240: digital printing layer
250: second primer layer 260: clear layer

Claims (7)

1. A mobile terminal comprising a case,
In this case,
A base material layer made of metal or plastic; And
And a digital printing layer stacked on the base material layer to form a pattern on the case,
The digital printing layer
At least two colored regions having different colors from each other and at least two or more texture regions having different thicknesses from each other, wholly or partly, on the surface of the case,
Wherein the colored region includes a first colored region in which a first colored ink is applied at a first height and a second colored region in which a second colored ink is applied at a second height,
Wherein the first and second heights are included in different texture areas when the first height and the second height are different, and are included in the same texture area when the first height and the second height are the same. The method according to claim 1,
Wherein the digital printing layer comprises an ultraviolet curing resin. The method according to claim 1,
A first primer layer laminated on top of the base material layer and a first primer layer laminated on the top of the second primer layer are laminated between the base material layer and the digital printing layer,
And a second primer layer laminated on the digital printing layer and a clear layer laminated on the second primer layer are laminated on the digital printing layer. A method of manufacturing a mobile terminal having a case,
Coating a topcoat layer made of polymer on top of the base material layer of the case;
Determining at least two colored regions having hues different from each other in whole or in part on the upper portion of the ground color upper layer;
Determining at least two texture areas having a thickness different from each other in whole or in part on the upper part of the background color upper layer; And
And digital printing the color tinted upper layer based on the step of determining the colored region,
Wherein the digital printing step is repeated until the number of digital printing layers in the same coloring area is equal to the predetermined number of layers based on the step of determining the coloring area and the step of determining the texture area. A method of manufacturing a terminal. 5. The method of claim 4,
The step of determining the coloring region and the step of determining the texture region may include a step of determining coordinates of a region on which the digital printing is to be performed in the upper layer of the background color in the step of digital printing according to the color, Determining a color to be colored in the coordinates and a number of times of performing the digital printing step. 6. The method of claim 5,
Wherein the digital printing comprises:
Determining the coloring area and determining the texture area based on the coordinates of the area in which the digital printing is to be performed, the color to be colored in the coordinates, and the number of executions of the digital printing step, And curing the ultraviolet curable resin by irradiating the ultraviolet curable resin with ultraviolet rays by an ultraviolet curing apparatus installed in the ink jet head after injecting the ultraviolet curable resins having at least two colors. Gt; 5. The method of claim 4,
Laminating a first primer layer as a release adhesive between the step of coating the base color layer and the step of performing digital printing;
Laminating a second primer layer, which is a release adhesive, after the digital printing step; And
And laminating a clear layer on top of the second primer layer.

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