KR20130010176A - Mobile terminal and method for manufacturing the same - Google Patents

Abstract

PURPOSE: A mobile terminal and a manufacturing method of the mobile terminal are provided to form patterns of various colors for a case and supply the case of various textures. CONSTITUTION: A case includes a parent material layer(210) and one or more digital printing layers(240). The parent material layer is formed with metal or plastic. The digital printing layers are laminated on an upper side of the parent material layer. The digital printing layers form patterns in the case. The digital printing layers have two or more tinted areas and two or more texture areas.

Description

MOBILE TERMINAL AND METHOD FOR MANUFACTURING THE SAME

The present invention relates to a mobile terminal and a method for manufacturing the mobile terminal, and more particularly, to a method of manufacturing a mobile terminal and a mobile terminal, which can form a pattern of various colors on the case and have a different texture. It is about.

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.

In particular, the structural part of the mobile terminal (that is, portable terminal) to be improved includes a case of the mobile terminal. The case of the mobile terminal should have a variety of textures to improve the feel, and should be able to be colored in various colors to enhance the aesthetics.

However, according to the mobile terminal and the manufacturing method of the mobile terminal according to the prior art, there has been a problem that can not be implemented in a single color to produce a variety of colors in one case. In addition, according to the prior art, there is a problem that a mold is used as an essential device for forming a pattern on a case, and a new mold must be manufactured to change the height, shape, and position of the pattern. In addition, the mold for forming the pattern is not a general mold but a precision processing mold, which is expensive in manufacturing cost and takes a lot of time to manufacture, and has a problem of low mold life due to weak durability due to precision processing. .

Accordingly, an object of the present invention is to provide a mobile terminal and a method for manufacturing the mobile terminal that solve the problems according to the prior art.

Specifically, an object of the present invention is to provide a mobile terminal and a method of manufacturing the mobile terminal to form a pattern of a variety of colors on the case, the case can have a variety of textures.

In addition, another object of the present invention is to provide a mobile terminal and a method for manufacturing the mobile terminal capable of forming a pattern of various shapes in the case without using a precision processing mold.

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

According to an aspect of the present invention for achieving the above object, the present invention, a mobile terminal comprising a case, the case, a base material layer composed of metal or plastic; And a digital printing layer laminated on at least one of the base material layers to form a pattern on the case, wherein the digital printing layers are at least two having different colors from each other, in whole or in part, on the surface of the case. It provides a mobile terminal, characterized in that it has at least two or more textured areas having the above-described colored areas and different thicknesses.

According to another aspect of the present invention for achieving the above object, the present invention, a method for manufacturing a mobile terminal having a case comprising the steps of: coating a base color layer consisting of a polymer on top of the base material layer of the case; Determining at least two colored areas on top of the background color layer having at least two different colors; Determining at least two texture regions on the top of the background color layer having a different thickness in whole or in part; And digitally printing the background color layer based on the determining of the colored region, wherein the digital printing comprises: determining the colored region and determining the textured region. The present invention provides a method for manufacturing a mobile terminal, wherein the number of digital printing layers is repeated until the number of digital printing layers is the same as the preset number of layers.

According to the problem solving means of the present invention described above, the present invention can form a pattern of various colors on the case, it is possible to manufacture a case having a variety of textures.

In addition, the present invention can form a pattern of various shapes on the case without using a precision machining mold. As a result, the present invention can reduce the cost and time required to manufacture a mold.

In addition, the present invention is easy to change the shape, height, size and color of the pattern formed in the case. For this reason, the present invention can easily manufacture a case having a variety of aesthetics and designs according to 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 an enlarged schematic cross-sectional view of the case of FIG. 3.
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 exemplarily illustrate a case according to the present invention.

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), and navigation. However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, etc., except when applicable only to mobile terminals.

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 a broadcast signal 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, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 may include, for example, Digital Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), Media Forward Link Only (MediaFLO), and Digital Video Broadcast (DVB-H). Digital broadcast signals can be received using digital broadcasting systems such as Handheld and Integrated Services Digital Broadcast-Terrestrial (ISDB-T). 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. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

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 image frames such as still images or moving images obtained by the image sensor in the video call 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 pressure / capacitance), 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 may sense whether the slide phone is opened or closed. In addition, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. 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 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (flexible). and at least one of 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. A representative example of the transparent display may be a transparent OLED, a transparent organic light emitting diode (TOLED), or 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 one another, and may be disposed on different surfaces, respectively.

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. 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. As a result, the controller 180 can know which area of the display unit 151 is touched.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of a mobile terminal surrounded by the touch screen or near 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 allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." 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 sound 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, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. 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 vibration generated by the haptic module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to vibration, the haptic module 154 may be configured to provide a pin array that vertically moves with respect to the contact skin surface, a jetting force or suction force of air through an injection or inlet port, grazing to the skin surface, contact of an electrode, electrostatic force, and the like. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.

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. In particular, the memory 160 may determine the length of the light blocking unit of the barrier layer corresponding to the distance between the viewer and the display unit as the control layer of the barrier layer, as described below. And a distance determination value and a displacement determination value corresponding to a deflection angle formed by the position of the center of the viewer's eyes 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.

The interface unit may be a passage through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or various command signals input from the cradle by a user may be transferred. It may be a passage that is delivered 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 an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

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 the space formed between the front case 200 ′ and the rear case 200. At least one intermediate case may be further disposed between the front case 200 ′ and the rear case 200.

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 unit 151, the audio output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, and the interface 170 may be disposed in the terminal body, mainly the front case 200 ′. Can be.

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 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 manipulation units 131 and 132 may also be collectively referred to as manipulating portions, and may be employed in any manner as long as the user operates the tactile manner with a tactile feeling.

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 additionally mounted on the rear 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 further 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 embedded in the terminal body or may be directly 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 case forming an 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, for example, in order to avoid duplication of description. That is, the mobile terminal and the manufacturing method of 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 a mobile terminal 100 according to the present invention. 4 is an enlarged schematic cross-sectional view of the case 200 of FIG. 3.

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

Here, the digital printing layer 240 is a layer in which a pattern is formed on the case 200 according to the principle of a digital printer, and the digital printing layer 240 is entirely or partially different from each other on the surface of the case 200. At least two colored areas having a color and at least two textured areas 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 injection or extrusion into a mold manufactured according to the shape of the case 200. In the present invention, a mold is used only when manufacturing the base material layer 210. As a result, since the mold does not need to be precisely processed, when the life of the mold is over or when the shape of the case 200 is changed, the mold manufacturing cost can be reduced and the manufacturing period of the mold can be shortened.

The base color layer 220 may be stacked on the base material layer 210 indicating the base background color in the completed case 200. The background color layer 220 is composed of a polymer, can be selected from various colors, and has one color. The base color layer 220 is laminated on the base material layer 210 by a spray method or a coating method.

Preferably, a first primer layer may be stacked on the base color layer 220 so that the digital printing layer 240 can be easily adhered to the base material 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, and thus are not adhered to each other. Not easily peeled off. In order to prevent this, a surfactant or a release adhesive is applied to the base material layer 210, which is the first primer layer 230.

The first primer layer 230 may be preferably made of a light transmissive material.

At least one digital printing layer 240 is provided on the first primer layer 230. One or more digital printing layers 241a, 242a, 243a; 241b, 242b, and 241c are formed in the case 200.

The digital printing layer 240 is a layer formed by spraying a special coloring ink for each line from the ink jet head of the digital printer toward the case 200 in accordance with the size, color, and shape of the pattern to be formed in the case 200. Here, the special colored ink is an ultraviolet curable resin. That is, the digital printing layer 240 is composed of an ultraviolet curable resin.

Since the digital printing layer 240 is formed for each line in the ink ejection head, 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 or more colored areas having different colors, or at least two textured areas having different thicknesses, in whole or in part, on the surface of the case 200.

For example, as shown in FIG. 4, the digital printing layer 240 may include three colored regions (shown as a, b, and c in the drawing, that is, 241a, 242a, 243a; 241b, 242b; 241c). The colored region may be formed by placing the ink spray head in a colored region to be colored and spraying UV curable resin having a color corresponding to the colored region to the base material layer 210 or the ground color layer 220 line by line. .

In addition, the first colored region 241c is formed by performing digital printing only once with an ultraviolet curable resin of a first color, and the second colored regions 241b and 242b are ultraviolet cured of a second color different from the first color. The resin is formed by performing digital printing twice on the second colored region, and the third colored regions 241a, 242a, and 243a are UV-curable resins of a third color different from the first color and the second color. It can be formed by performing digital printing three times on three colored areas. In this way, the first colored region 241c, the second colored regions 241b and 242b and the third colored regions 241a, 242a and 243a have different patterns of digital printing, and thus have different thickness patterns. This results in the formation of textured regions of different thickness.

Of course, the textured areas of different thicknesses may be formed by performing digital printing on the colored areas of the same color at different times. For reference, the numeral part in the reference numerals of the digital printing layer shown in the drawing represents the number of each layer, the lowercase letters in English represent the color of the ultraviolet curing resin.

As such, the digital printing layer may have different colored areas and different textured areas, thereby forming patterns of various colors in the case 200, and manufacturing a case 200 having various textures. In addition, since the pattern is formed by a digital printing method, it is possible to form a pattern of various shapes in the case 200 without using a precision processing mold, it is possible to reduce the cost and time required for manufacturing the mold. In addition, since the shape, height, size, and color of the pattern to be formed in the case 200 can be easily changed and stored in the controller of the digital printer, the shape, height, size, and color of the pattern formed in the case 200 are changed. Easy to do Therefore, the case 200 having various aesthetics and designs can be easily manufactured according to the user's taste.

On the upper portion of the digital printing layer, a second primer layer 250 stacked on the upper portion of the digital printing layer and a clear layer 260 stacked on the second primer layer 250 may be additionally stacked.

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 directly formed on the digital printing layer (ie, the ultraviolet curable resin), the digital printing layer and the clear layer 260 are made of a material having different physical properties, and thus are not adhered to each other, so that they can be easily peeled off. have. To prevent this, a surfactant or a release adhesive is applied to the digital printing layer, which is the second primer layer 250.

The second primer layer 250 may be preferably made of a light transmissive material.

Specifically, the clear layer 260 is an ultraviolet clear layer 260 (UV clear layer), and is a coating layer made of a light transmissive material. The clear layer 260 is made of a polymer such as plastic. The clear layer 260 serves as a protective layer as the outermost layer of the case 200, improves the wear resistance of the case 200, adjusts the degree of gloss of the case 200, and determines the feel of the case 200. It is a component.

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

As shown in Figure 5a to Figure 5g, the manufacturing method of the mobile terminal 100 having a case 200 according to the present invention, the background color composed of a polymer on the base material layer 210 of the case 200 Coating the upper layer 220; Determining at least two colored areas on the background color layer 220 having different colors in whole or in part; Determining at least two texture regions having a thickness different from each other, in whole or in part, on the base color layer 220; And digitally printing the background color layer 220 based on the determining of the colored region.

Looking at the manufacturing method of the mobile terminal 100 according to the present invention sequentially, first, as shown in Figure 5a, by using a mold to form a base material layer 210 to form the appearance of the case 200. The mold is a mold whose pattern is not precisely processed.

Thereafter, as shown in FIG. 5B, the base color layer 220 made of a polymer is coated on the base material layer 210 of the case 200. The background color layer 220 determines the overall color and aesthetics of the case 200. The base color layer 220 is laminated on the base material layer 210 by a spray method or a coating method.

Thereafter, as illustrated in FIG. 5C, the first primer layer 230, which is a release adhesive, is stacked on the base color layer 220. The first primer layer 230 allows the base color layer 220 and the digital printing layer to be laminated later to adhere well, and is made of a light transmissive material.

Subsequently, the control unit of the digital printer by the input signal input through the input unit of the digital printer according to the height, shape and color of the pattern to be formed in the case 200, the base color layer 220 or the first primer layer ( On top of 230, at least two colored areas having different colors in whole or in part are determined.

In addition, the control unit of the digital printer by the input signal input through the input unit of the digital printer according to the height, shape and color of the pattern to be formed on the case 200, the base color layer 220 or the first primer layer ( At least two textured areas having a thickness different from each other, in whole or in part, are determined on top of the 230.

The determining of the colored region and the determining of the textured region may be performed by the controller of the digital printer according to the shape and texture of the pattern to be displayed on the case 200 (that is, the height of the digital printing layer or the thickness of the pattern). According to the digital printing, the coordinates of the area to be digitally printed on the background color layer 220, the color to be colored on the coordinates, and the number of times of the digital printing are executed.

Thereafter, 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 colored region using a digital printer. For example, as shown in FIG. 5D, the ink ejection head of the digital printer according to the coordinates of the region to be executed digital printing determined by the controller of the digital printer and the color to be colored in the coordinates in the step of determining the colored region. Is formed in the first colored region (ie, the determined first coordinates) 241c and the digital printing layer colored with the first color, and the second colored region (ie, the determined second coordinates) 241b includes the first color and the 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 area (ie, the determined third coordinate) 241a. do. That is, the case 200 may be formed with a pattern of various colors other than a single color.

Here, the digital printing may be performed according to the coordinates of the area to execute the digital printing, the color to be colored on the coordinates, and the number of times of digital printing. After spraying ultraviolet curable resins having at least two colors from the ink ejection head of the digital printer, the ultraviolet curable device installed in the ink ejection head is irradiated with ultraviolet rays to cure the ultraviolet curable resins. . As a result, the time required to form a pattern in the case 200 may be shortened, and a pattern of another color may be immediately formed, or a pattern of the same color may be superimposed without delay in the same area.

Then, as shown in Figure 5e, the step of digital printing is repeated. Specifically, according to the coordinates of the area to perform digital printing determined by the controller of the digital printer in the step of determining the colored area, the color to be colored in the coordinates and the number of times to perform the digital printing (that is, the colored area is Based on the determining step and determining the texture area, the digital printing step is repeatedly performed until the number of digital printing layers in the same colored area is equal to the preset number of layers). For example, as shown in FIG. 5E, the ink ejection head of the digital printer does not perform digital printing on the first colored region (ie, the determined first coordinate) 241c without further performing digital printing. In the determined second coordinates 241b and 242b, digital printing is performed once more with an ultraviolet curable resin of a second color different from the first color, and the third colored region (ie, the determined third coordinates) 241a and 242a. , 243a) is further subjected to digital printing twice with an ultraviolet curable resin different from the first and second colors.

In this way, by performing digital printing at different times in the first colored region, the second colored region, and the third colored region, a plurality of textured regions having patterns having different thicknesses may be formed in the case 200. Due to this, the case 200 may have a pattern having various thicknesses (ie, various textures).

Thereafter, as illustrated in FIG. 5F, a second primer layer 250, which is a release adhesive, is stacked on the digital printing layer.

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

6a to 6d exemplarily illustrate a case 200 according to the present invention.

Figure 6a is a case 200 manufactured by performing a plurality of digital printing on the base material layer 210 made of a single mold using the manufacturing method of the mobile terminal 100 according to the present invention. As shown in Figure 6a to 6d, the manufacturing method of the mobile terminal 100 according to the present invention does not use a precision machined mold, the pattern of various colors on the case 200 (especially, see Figures 6c and 6d) ) May be implemented, and patterns of various textures may be formed on the case 200 (in particular, FIG. 6B). In addition, the case 200 may not be manufactured in a uniform design, but the case 200 may be manufactured according to a user's intention and taste.

(Mobile terminal 100) having the (name) described above is not limited to the configuration and method of the embodiments described above, the embodiments are each embodiment so that various modifications can be made All or some of these may optionally be combined.

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

Claims (7)

A mobile terminal comprising a case,
In this case,
A matrix layer composed of metal or plastic; And
And a digital printing layer stacked on at least one of the base material layers to form a pattern in the case.
And the digital printing layer has at least two or more colored areas having different colors and at least two textured areas having different thicknesses, in whole or in part, on the surface of the case. The method of claim 1,
The digital printing layer is a mobile terminal, characterized in that composed of an ultraviolet curable resin. The method of claim 1,
Between the base material layer and the digital printing layer, a base color layer stacked on top of the base material layer and composed of a polymer and a first primer layer stacked on top of the base color layer are stacked,
The upper portion of the digital printing layer, the mobile terminal, characterized in that the second layer laminated on the upper portion of the digital printing layer and the clear layer stacked on the second primer layer. A method of manufacturing a mobile terminal having a case,
Coating a base color layer composed of a polymer on top of the base material layer of the case;
Determining at least two colored areas on top of the background color layer having at least two different colors;
Determining at least two texture regions on the top of the background color layer having a different thickness in whole or in part; And
And digitally printing the background color layer based on the determining of the colored region.
The digital printing may be repeated until the number of digital printing layers is the same as the preset number of layers in the same colored region based on the determining of the colored region and the determining of the textured region. Method of manufacturing a terminal. 5. The method of claim 4,
The determining of the colored region and the determining of the textured region may include: coordinates of an area to be digitally printed on the background color layer in the digital printing according to the color, shape, and texture of the pattern to be displayed on the case; And determining a color to be colored in the coordinates and the number of times of performing the digital printing. The method of claim 5,
The digital printing step,
In the ink ejection head of the digital printer according to the coordinates of the area to execute the digital printing, the color to be colored to the coordinates and the number of times of the digital printing step determined in the step of determining the colored area and the texture area. Spraying ultraviolet curable resins having at least two colors, and curing the ultraviolet curable resins by irradiating the ultraviolet curable resin with ultraviolet rays using an ultraviolet curing device installed in the ink spray head. Manufacturing method. 5. The method of claim 4,
Stacking a first primer layer, which is a release adhesive, between the coating of the background color layer and the digital printing;
Stacking a second primer layer which is a release adhesive after the digital printing; And
Laminating a clear layer on the second primer layer; The manufacturing method of a mobile terminal further comprising.

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