KR20100049436A - Portable terminal - Google Patents

Abstract

PURPOSE: A portable terminal is provided to facilitate the manufacture and assembly by adjusting the structure and the arrangement of the part for the drive of the solar cell module. CONSTITUTION: A photoelectric unit(410) is formed on the first area of substrate and generates the electromotive force in response to the react to the light. A regulator is formed on the second part of substrate and transforms the electricity generated from the photoelectric unit into the constant voltage. A battery(450) stores the electricity generated from the solar cell module. The photoelectric unit comprises the first electrode layer attached to the substrate, a semiconductor layer located in the outer layer of the first electrode layer, and the second electrode layer which is located in the outer layer of the semiconductor layer and is light-transmissive.

Description

Mobile terminal {PORTABLE TERMINAL}

The present invention relates to a portable terminal having a solar cell.

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

As the functions are diversified, the mobile terminal has complicated functions such as taking a picture or a video, playing a music or a video file, playing a game, receiving a broadcast, and the like. It also implements.

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

As a power source supplied to a portable terminal, a battery which can be charged is often used. When the battery is discharged, it is possible to use a rechargeable home or office. However, in some cases, not only can the charger not be available, but also the hassle of connecting to the charger each time. In addition, raising awareness of energy that does not cause pollution has led to attempts to install pollution-free power supply means such as solar cells in portable terminals.

The present invention has been made in view of the above, in applying a solar cell module that does not cause pollution to a mobile terminal, the overall size is reduced and manufactured by adjusting the arrangement and structure of components for driving the solar cell module And the purpose is to provide a portable terminal easy to assemble.

A mobile terminal according to an embodiment of the present invention for realizing the above object includes a solar cell module and a battery for storing electricity generated by the solar cell module. The solar cell module includes a substrate, a photovoltaic unit formed in the first region of the substrate and stacked to generate electromotive force in response to light, and a photovoltaic unit formed in the second region of the substrate. It includes a regulator to convert.

As an example related to the present invention, the photovoltaic unit may include a first electrode layer attached to a substrate, a semiconductor layer positioned on an outer layer of the first electrode layer, and a light transmissive second electrode layer disposed on an outer surface of the semiconductor layer. The semiconductor layer may extend into the second region, and the regulator may be formed in the extended semiconductor layer.

As examples related to the present invention, the solar cell module may be formed on a battery cover covering a battery, an edge of a display displaying visual information, or a touch pad input by a touch method.

As an example related to the present invention, the substrate may be integrally formed over the first region and the second region. In addition, the regulator and the photovoltaic unit may be laminated by the same process.

As an example related to the present invention, the regulator formed in the second region may include any one or more of a low dropout (LDO), a DC-DC converter, and a charge pump.

As an example related to the present invention, the photovoltaic unit may include at least one unit cell.

As an example related to the present invention, the solar cell module may further include a booster connected to the unit cell and increasing an output potential difference of the unit cell. In this case, the photovoltaic unit may include a plurality of unit cells connected in parallel or one unit cell. This booster may be formed in the second region.

According to the portable terminal of the present invention configured as described above, since the regulator is mounted together with the wafer-type solar cell module, there is no need to separately install a regulator component in the portable terminal, thereby making the portable terminal slim. There is.

Regulator module embedded solar cell module can be manufactured in the same process has the advantage of reducing the manufacturing cost.

In addition, since the solar cell module is integrated with related functions, the solar cell module may be installed to suit any position of the portable terminal.

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

The portable terminal can be implemented in various forms. For example, a terminal described herein includes a mobile terminal such as a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, and the like. And fixed terminals such as digital TVs, desktop computers, and the like. In the following description, it is assumed that the terminal is a portable terminal. However, it will be readily apparent to those skilled in the art that the configuration according to the following description may also be applied to fixed terminals, except for components specifically configured for mobile use.

1 is a block diagram of a portable terminal related to the present invention.

The mobile terminal 100 may include a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory unit 160, and an interface. The unit 170, the controller 180, and the power supply unit 190 may be included. 1 illustrates a portable terminal having various components. However, not all illustrated components are required. The portable terminal may be implemented by more components than the illustrated components, or the portable terminal may be implemented by fewer components.

The following describes the components in order.

The wireless communication unit 110 may include one or more components for wireless communication between the mobile terminal 100 and another wireless communication system or wireless communication between the mobile terminal 100 and a 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, a location information module 115, and the like. .

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 mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a pre-generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

Meanwhile, broadcast related information may be provided through a mobile communication network, and in this case, 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 receives broadcast signals using various broadcast systems, and in particular, digital multimedia broadcasting-terrestrial (DMB-T), digital multimedia broadcasting-satellite (DMB-S), and media forward link only (MediaFLO). ), Digital broadcast signals may be received using digital broadcasting systems such as DVB-H (Digital Video Broadcast-Handheld) and ISDB-T (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 is configured to be suitable for all broadcast systems providing broadcast signals as well as the digital broadcast system described above.

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

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

The wireless Internet module 113 is a module for wireless Internet access, and the wireless Internet module 113 can be built in or externally. 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. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

In addition, the location information module 115 is a module for checking or obtaining the location of the mobile terminal. A representative example of the location information module is a GPS (Global Position System) module. According to the current technology, the GPS module 115 calculates distance information and accurate time information from three or more satellites, and then applies triangulation to the calculated information, so that three-dimensional current position information according to latitude, longitude, and altitude is obtained. Can be calculated accurately. Currently, a method of calculating position and time information using three satellites and correcting an error of position and time information calculated using another satellite is widely used. In addition, the GPS module 115 may calculate speed information by continuously calculating the current position in real time.

Meanwhile, the A / V 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 a moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame may 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 according to the configuration aspect of the terminal.

The microphone 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. The processed voice data may be converted into a form transmittable to the mobile communication base station through the mobile communication module 112 and output in the call mode. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The user input unit 130 generates input data for the 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. In particular, when the touch pad has a mutual layer structure with the display unit 151 described later, this may be referred to as a touch screen.

The sensing unit 140 detects a current state of the mobile terminal 100 such as an open / closed state of the mobile terminal 100, a position of the mobile terminal 100, presence or absence of a user contact, orientation of the mobile terminal, acceleration / deceleration of the mobile terminal, and the like. To generate a sensing signal for controlling the operation of the portable 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, it is responsible for sensing functions related to whether the power supply unit 190 is supplied with power or whether the interface unit 170 is coupled to an external device. The sensing unit 140 may include a proximity sensor 141. This will be described later with reference to the touch screen.

The interface unit 170 serves as an interface with all external devices connected to the mobile terminal 100. For example, wired / wireless headset ports, external charger ports, wired / wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input / output (I / O) ports, Video I / O (Input / Output) port, earphone port, etc. may be included. Here, the identification module is a chip that stores various types of information for authenticating the usage right of the mobile terminal 100, and includes a user identification module (UIM) and a subscriber identify module (SIM). ), A Universal Subscriber Identity Module (“USIM”), and the like. In addition, the device equipped with the identification module (hereinafter, 'identification device') may be manufactured in the form of a smart card. Therefore, the identification device may be connected to the terminal 100 through a port. The interface unit 170 receives data from an external device or receives power and transmits the data to each component inside the mobile terminal 100 or transmits the data inside the mobile terminal 100 to an external device.

In addition, the interface unit 170 is 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. It may be a passage that is delivered to the mobile terminal. Various command signals or power input from the cradle may be operated as signals for recognizing that the mobile terminal is correctly mounted on the cradle.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 may include a display unit 151, an audio output module 152, and an alarm output module 153. have.

The display unit 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal is in a call mode, a user interface (UI) or a graphic user interface (GUI) associated with a call is displayed, and the mobile terminal 100 displays a video call mode or a shooting mode. If is displayed, and / or the received image or UI, GUI.

Meanwhile, as described above, when the display unit 151 and the touch pad form a mutual layer structure to form a touch screen, the display module 151 may be used as an input device in addition to the output device. The display unit 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three-dimensional display 3D display). Some of these displays can be configured to be transparent so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display includes a transparent LCD. In addition, two or more display units 151 may exist according to the implementation form of the mobile terminal 100. The touch screen may be configured to detect a touch input pressure as well as a touch input position and area.

Meanwhile, the proximity sensor 141 may be disposed inside 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 an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. Thus, proximity sensors have a considerably longer life than contact sensors and their utilization is also quite high. Examples of the proximity sensor include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor.

In the high frequency oscillation type proximity sensor, when the sensing object approaches the sensor sensing surface in the state of oscillating high frequency wave of oscillation circuit, the oscillation amplitude of the oscillation circuit is reduced or stopped, and this change is converted into an electrical signal. The presence or absence of a will be detected. Therefore, even if a non-metallic material comes between the high frequency oscillation proximity sensor and the sensing object, the proximity switch can detect the sensing object to be detected without interference of the object.

Even if the proximity sensor is not mounted, the touch screen may be configured to detect proximity of the pointer by a change in electric field according to proximity of the pointer when the touch screen is capacitive.

Therefore, when the pointer is not in contact but is in close proximity on the touch screen, the position of the pointer and the distance between the pointer and the touch screen may be detected. Hereinafter, for convenience of explanation, the act of allowing the pointer to be located close to the touch screen to recognize that the pointer is located on the touch screen is referred to as a "proximity touch", and the act of actually touching the pointer on the touch screen. Will be referred to as "contact touch". In addition, the position of the proximity touch with the pointer on the touch screen refers to a position where the pointer is perpendicular to the touch screen when the pointer is in close proximity touch.

The proximity sensor detects proximity touch and proximity touch patterns (eg, proximity touch distance, proximity touch direction, proximity touch speed, proximity touch time, proximity touch position, proximity touch movement state, etc.) Information corresponding to the touch operation and the proximity touch pattern may be output on the touch screen.

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

The alarm unit 153 outputs a signal for notifying occurrence of an event of the portable terminal 100. Examples of events occurring in the mobile terminal include call signal reception, message reception, key signal input, and touch input. The alarm unit 153 may output a signal for notifying occurrence of an event in a form other than an audio signal or a video signal. For example, the signal may be output in the form of vibration. When a call signal is received or a message is received, the alarm unit 153 may output a vibration to inform this. Alternatively, when a key signal is input, the alarm unit 153 may output a vibration in response to the key signal input. Through the vibration output as described above, the user can recognize the occurrence of the event. Of course, the signal for the event occurrence notification may be output through the display unit 151 or the voice output module 152.

The memory unit 160 may store a program for processing and controlling the controller 180 and may temporarily store input / output data (for example, a phone book, a message, a still image, a video, etc.). You can also do In addition, the memory unit 160 may store data regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.

The memory unit 160 may include a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), Random Access Memory (RAM) Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM) magnetic memory, Magnetic disk It may include at least one type of storage medium of the optical disk. In addition, the mobile terminal 100 may operate a web storage that performs a storage function of the memory unit 160 on the Internet.

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

The controller 180 may perform a pattern recognition process for recognizing a writing input or a drawing input performed on a touch screen as text and an image, respectively.

The power supply unit 190 supplies power required for the operation of each component under the control of the controller 180. In connection with the present invention, the power supply unit 190 includes a photovoltaic unit 410, a regulator 440 and a battery 450.

The photovoltaic unit 410 absorbs solar energy and converts it into electrical energy, and the regulator 440 converts the voltage and current generated in the photovoltaic unit 410 into rated power that can be used in the mobile terminal 100. do. The battery 450 receives power from the photovoltaic unit 410 and stores the supplied power to the system. In addition, the battery 450 may be configured to receive power from a home power source.

The photovoltaic unit 410 is functionally provided separately from the regulator 440, but may be embedded in the inside of the solar cell module 400. This will be described later.

Various embodiments described herein may be implemented 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 include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing the functions. Examples may be implemented by the controller 180. According to the software implementation, embodiments such as a procedure or a function may be implemented with a separate software module to perform at least one function or operation. May be implemented by a software application written in a suitable programming language. It is stored in the memory 160, and executed by a controller 180.

2 is a front perspective view of a mobile terminal according to the present invention; As shown in FIG. 2, the portable terminal 100 includes a front body 101 and a rear body 102 that are slidably coupled to each other. However, the present invention is not limited to the so-called 'slide type' disclosed in FIG. 2 or FIG. 3, but is composed of only one body or a bar type or two or more bodies foldably connected to each other. It can also be applied to a 'folder type' or 'swivel type', and other forms of form factor.

The state in which the front body 101 is disposed to be completely overlapped with the rear body 102 may be referred to as a closed configuration. As shown in FIG. 3, the front body 101 may define at least a portion of the rear body 102. The exposed state may be referred to as an open configuration.

Although the mobile terminal 100 operates mainly in a standby mode in a closed state, the standby mode may be released by a user's operation. In the open state, the apparatus mainly operates in a call mode or the like, but may be switched to a standby mode by a user's operation or a lapse of a predetermined time.

A case (which may be called a casing, a housing, a cover, etc.) forming the exterior of the front body 101 is formed by the front case 103 and the rear case 104. Various electronic components are embedded in the space formed by the front case 103 and the rear case 104. At least one intermediate case may be further disposed between the front case 103 and the rear case 104. 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 lower end of the front body 101 may be formed in a round shape, and two, three or more pushbuttons 131 are provided at the lower end of the front case 103 formed in a round shape. The push button 131 may be assigned as a call key or termination, power on or off, or a specific function immediately executed. When the pushbutton 131 is not pressed, the pushbutton 131 is formed in a shape that corresponds to the outline of the front case 103, so that the pushbutton 131 may realize a unified image of the mobile terminal 100 as a whole.

Except for the pushbutton 131 at the bottom, the front surface of the front body 101 is covered by an enlarged window 107. The window 107 and the inside of the window 107 include a first region 107a for display and a second region 107b for key input in a touch manner. That is, the first area 107a is capable of outputting visual information according to various modes of the portable terminal 100, and the second area 107b includes a plurality of keys so that a touch can be applied to the keys. If it is present, it is configured to execute the function or input.

The display module is installed in the first region 107a. The display module may include a liquid crystal display (LCD), an organic light emitting diode (OLED), an e-paper, a transparent OLED (TOLED), and the like as a device for visually representing information.

The window 107 is integrally formed to include both the first region 107a and the second region 107b, thereby forming an assembly gap or boundary shape that divides the first region 107a and the second region 107b. It is possible to be formed in a smooth form without placing. Since the window 107 may be vulnerable to deformation when enlarged, it is preferable that the window 107 is formed of a material such as tempered glass.

The sound output unit 152, the first image input unit 121, the push button 132, and the like are disposed on the window 107.

The first image input unit 121 is disposed inside the window 107 so as not to damage the appearance of the front body 101, and a predetermined area of the window 107 corresponding to the first image input unit 121 is the light of the subject. It is formed translucent so that it can pass. The first image input unit 121 may be implemented in the form of a camera module for capturing an image or a video of a user.

The sound output unit 152 basically outputs a call sound. In addition, the sound output unit 152 may serve as a loudspeaker that outputs various notification sounds or multimedia playback sounds of the system, or may include a separate speaker to implement a stereo function. have.

The first region 107a of the window 107 may be formed to be translucent or semi-transparent so that the screen output from the display module disposed therein is visible, and the remaining regions except for the first region 107a are opaque. Can be formed.

In the second area 107b of the window 107, a symbol or mark for each key may be formed. Each mark may be formed so that it may be clearly identified by the help of the lighting unit disposed inside the window 107 when there is a touch although it is not clear in the standby state. Since the cover is composed of a plurality of sets, it is also possible to be configured such that different sets of signs are visible by the lighting unit according to the mode of the portable terminal 100.

The push button 132 disposed in the center of the second area 107b may provide a reference point for determining the position of the key which is divided into several pieces. That is, since the keys other than the push button 132 are operated in a touch manner, it may be difficult to easily determine the position of the keys. Therefore, since the pushbutton 132 is formed to protrude from the window 107 to a certain height, the touch-type keys arranged around the pushbutton 132 can be accurately operated.

Unlike the disclosure of FIG. 3, the second region 107b may include only a plurality of buttons or keys operated by a push method.

Like the front body 101, the rear body 102 may include a front case 105 and a rear case 106.

The keypad 134 may be disposed on the rear body 102, specifically, the front face of the front case 105, and the side key 133 may be disposed on at least one of the front case 105 or the rear case 106. The sound input unit 122 and the external interface 126 may be disposed.

The push button 132 and the touch key of the second area 107b, the push button 131 of the lower part of the front body 101, the keypad 134 and the side key 133 of the rear body 102 are manipulating. portion) may be referred to collectively. In addition to these manipulation units, the controller may further include an input means that may be implemented by a wheel for rotating a key or a manner of operating such as a jog or a joystick. In functional terms, the touch keys or pushbuttons 131 and 132 of the front body 101 are for inputting commands such as start, end, scroll, and the like, and the keypad 134 for inputting numbers, letters, symbols, etc. It is for. The side key 133 may operate as a hot key for performing a special function such as activation of the first image input unit 121. The side key 133 may also be employed in any manner as long as the user is tactile in the tactile manner.

The sound input unit 122 may be implemented in the form of, for example, a microphone to receive a user's voice, other sounds, and the like. The sound input unit 122 may be disposed on the keypad 134, or may be disposed on the side of the rear body 102.

The external interface 126 serves as a passage for allowing the mobile terminal 100 according to the present invention to exchange data with an external device. For example, the external interface 126 may be wired or wireless, and a connection terminal for connecting to the earphone or a port for short-range communication (for example, an infrared port (IrDA port), a Bluetooth port, a wireless LAN port ( wireless Lan port), or the like, at least one of the power supply terminals for supplying power to the wireless LAN port. For example, the external interface 126 may be at least one of a connection terminal for connecting to the earphone, an infrared port (IrDA port), and a wireless LAN port. The external interface 126 may be a card socket that accommodates an external card such as a subscriber identification module (SIM) or a user identity module (UIM), a memory card for storing information.

On the rear case 104 side, a battery cover 108 for covering a battery for supplying power to the portable terminal 100 may be detachably installed. The battery is rechargeable and can be detachably coupled for continuous use.

The battery cover 108 may be made of metal or resin, and may include physical or chemical surface treatments to realize color effects or three-dimensional visual effects for color implementation.

3 is a rear perspective view of the portable terminal of FIG. 2. Referring to FIG. 3, a second image input unit 123 may be additionally mounted on the rear surface of the rear body 102. The second image input unit 123 may have a photographing direction substantially opposite to that of the first image input unit 121, and may be a camera having different pixels from the first image input unit 121. For example, the first video input unit 121 has a low pixel so that it is easy to take a picture of a user and transmit it to a counterpart in a video call, and the second video input unit 123 immediately photographs a general subject. It is preferable to have a high pixel because it is not transmitted in many cases. The flash 124 and the mirror unit 125 may be further disposed adjacent to the second image input unit 123.

A portion of the slide module 109 that slidably couples the front body 101 and the rear body 102 to the rear case 104 side of the front body 101 is disposed. The other part of the slide module 109 may be disposed on the front case 103 side of the rear body 102 and may not be exposed to the outside as shown in the drawing.

The battery cover 108 may be formed to cover all the rear surfaces of the rear body 102 so as not to make an assembly gap or a boundary line with other components on the rear surface.

Referring to FIG. 3, the solar cell module 400 having a predetermined area is mounted on the rear surface of the battery cover 108. The solar cell module 400 receives light from the sun or an illumination lamp and converts light energy into electrical energy. The solar cell module 400 may include two or more unit cells or only one unit cell connected in parallel as described below.

In FIG. 3, the second image input unit 123 or the like has been described as being disposed on the rear body 102, but is not necessarily limited thereto. For example, at least one or more of the components described as being disposed on the rear body 102, such as the second image input unit 123, may be mounted on the rear surface of the front body 101. If so, there is an advantage that the configuration (s) disposed in the rear case 104 in the closed state are protected by the rear body 102. In addition, even if the second image input unit 123 is not provided separately, the first image input unit 121 may be rotatably formed so that the image capturing may be performed up to the photographing direction of the second image input unit 123.

4 is a partial cross-sectional view of the rear body of the mobile terminal according to the present invention. Referring to FIG. 4, the rear cover 102 is equipped with a removable battery cover 108 to remove the battery 450.

The battery 450 stores power supplied from electricity generated by the solar cell module 400 or a separate home power supply, and supplies power to implement various functions of the wireless transmission / reception or the mobile terminal 100. Supply.

The solar cell module 400 includes a photovoltaic unit 410 configured to generate a potential difference by light. The photovoltaic unit 410 may be mounted on at least one surface of the battery cover 108 or the terminal cases 103, 104, 105, and 106.

Referring to FIG. 4, the battery cover 108 includes a base 401, and the photovoltaic unit 410 is attached to the base 401 by an adhesive layer 430.

The base 401 may be made of a material having sufficient rigidity to protect the battery 450 and the photovoltaic unit 410. For example, a metal material such as stainless steel (STS) having good light weight and formability is possible.

A transmissive protective layer 420 is formed on the outer surface of the photovoltaic unit 410 to protect the photovoltaic unit 410 from external impact or scratches by foreign matter.

A contact terminal (not shown) may be formed on an inner surface of the battery cover 108 to allow current to flow into the photovoltaic unit 410.

As such, when the solar cell module 400 is disposed on the battery cover 108, the battery cover can be replaced, and thus the battery cover can be easily replaced with the battery cover 108 when the solar cell module 400 is damaged or the efficiency thereof is reduced. There is an advantage. In addition, according to how the solar cell module 400 is arranged, various kinds of appearance patterns or shapes may be formed, and thus the user may adopt the personality.

5 is a schematic cross-sectional view of a solar module according to the present invention. The solar cell module 400 illustrated in FIG. 5 includes two regions 401 and 402 formed on the substrate 420, and a photovoltaic unit 410 that generates electromotive force by light in the first region 401. ) Is formed, and the second region 402 includes a regulator 440 for converting the electromotive force generated by the photovoltaic unit 410 into a constant voltage.

As illustrated in FIG. 5, the photovoltaic unit 410 may include a plurality of unit cells 410A, 410B, 410C, and 410D. Each unit cell 410A, 410B, 410C, and 410D includes a first electrode layer 451, a semiconductor layer 452, and a second electrode layer 453.

Each unit cell 410A, 410B, 410C, 410D is connected in series or in parallel with each other. In particular, when connected in parallel, metal connection means or patterns for sequentially connecting the unit cells 410A, 410B, 410C, and 410D in series may be not included in order to obtain a sufficient potential difference supplied to the load.

The first electrode layer 451 may be formed of aluminum or copper foil, and emits electrons when light is irradiated to the unit cells 410A, 410B, 410C, and 410D.

The semiconductor layer 452 is formed by using a semiconductor reacted with light and is formed in a wafer form.

The second electrode layer 453 is formed to be translucent to prevent blocking of light directed toward the semiconductor layer 452. Such a light transmitting electrode may be formed by, for example, deposited tin oxide (ITO), carbon nanotubes, or the like.

The regulator 440 formed in the second region is formed in a manufacturing process such as the photovoltaic unit 410 on the wafer-shaped substrate 420. Accordingly, in some embodiments, the first electrode layer 451, the semiconductor layer 452, and the second electrode layer 453 are formed to extend to the second region 402. The semiconductor layer 452 extending to the second region 402 forms a regulator 440. The regulator 440 may include one or more of a low dropout (LDO), a DC-DC converter, and a charge pump. These devices are embedded in the solar cell module 400 through a multilayer substrate or semiconductor manufacturing process. Therefore, since the regulator does not need to be separately placed in the portable terminal 100, the mounting space can be reduced and the size of the portable terminal can be reduced.

6 is a conceptual diagram of a solar module according to the present invention. As shown in FIG. 6, each of the unit cells 410A, 410B, 410C, and 410D having the form of FIG. 5 is connected to the booster 460 in parallel. The booster 460 amplifies the output potential difference of the unit cells 410A, 410B, 410C, and 410D and is connected to the load or the battery 450. As a result of applying the arrangement of the unit cells 410A, 410B, 410C, 410D and the booster 460, the current obtained through the booster 460 is the sum of the currents of the unit cells 410A, 410B, 410C, 410D. Is the same as Therefore, as a result of connecting the unit cells 410A, 410B, 410C, and 410D in series, the current becomes very low, thereby solving a problem that is difficult to apply to a portable terminal.

As an example, 2.2V can be obtained by connecting four unit cells (410A, 410B, 410C, 410D) capable of supplying 0.55V, 30mA in series, but the current is still 30mA, rated at least several hundred mA. The current cannot be met. In contrast, the booster 460 is supplied with a small amount of power from the battery 450 to amplify the potential difference between the unit cells 410A, 410B, 410C, and 410D, and instead, the total currents are connected in parallel to the unit cells 410A and 410B. By maintaining the sum of the currents of 410C and 410D at about the same level, it is easy to meet the rated voltage / current. Such a booster may be implemented by applying a DC-DC converter means and may be embedded in the semiconductor fabrication process on the substrate 420 together with the photovoltaic unit 410.

7 is a cross-sectional view illustrating another example of the solar cell module as another example related to the present invention. The solar cell module 400 includes a first region 401 and a second region 402, and a photovoltaic unit 410 for converting light energy into electrical energy is formed in the first region 401. In the second region 402, a regulator 440 is formed to convert the electromotive force generated by the photovoltaic unit 410 into a constant voltage. The regulator 440 is manufactured on the same substrate 420 by the same process as the photovoltaic unit 410. The manufactured regulator 440 may be regarded as being embedded in the solar cell module 400.

In FIG. 7, unlike FIG. 5, the photovoltaic unit 410 including only one unit cell is shown. That is, by using a large enough area of the photovoltaic unit 410 to increase the current generated from the photovoltaic unit 410. However, the booster 460 embedded in the solar cell module 400 described above may be applied to amplify a low potential difference of the photovoltaic unit 410 of one unit cell.

8 is a perspective view showing another example of a mobile terminal related to the present invention. Referring to FIG. 8, the mobile terminal 500 includes a display 151 on the front surface, and the solar cell module 400 described above is formed in an area around the display 151. That is, the solar cell module 400 that can cover the display 151 is arranged in harmony with the display 151, so that the area in which the solar cell module 400 is mounted does not interfere with other areas of the mobile terminal 500. In addition, it can naturally absorb sunlight directed to the front and convert it into electrical energy.

9 is a perspective view showing another example related to the present invention. The mobile terminal 600 illustrated in FIG. 9 includes a touch pad 133 that can be input by a touch method on one side of the display 151. Since the touch pad 133 may provide a smooth surface without forming complicated contours or gaps, the touch pad 133 may mount the solar cell module 400. In this case, the electrode layer mounted on the solar cell module 400 has an advantage of serving as a function of the electrode layer for detecting a touch.

The operating state of the solar cell module 400 may vary depending on the amount of light. The operation state of the photovoltaic unit 410 may enable the user to immediately recognize the visual indicator or display 151.

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

1 is a block diagram of a portable terminal related to the present invention.

2 is a front perspective view of a mobile terminal related to the present invention;

3 is a rear perspective view of the mobile terminal of FIG.

4 is a partial cross-sectional view of the rear body of the mobile terminal according to the present invention.

5 is a schematic cross-sectional view of the solar cell module related to the present invention.

6 is a conceptual diagram of a solar module related to the present invention

7 is a cross-sectional view illustrating another example of the solar cell module as another example related to the present invention.

8 is a perspective view showing another example of a mobile terminal according to the present invention;

9 is a perspective view showing another example related to the present invention

Claims (14)

A solar cell module and a battery for storing the electricity generated in the solar cell module, The solar cell module, Substrate; A photovoltaic unit formed in the first region of the substrate and stacked to generate electromotive force in response to light; And And a regulator formed in the second region of the substrate, the regulator converting electricity generated by the photovoltaic unit into a constant voltage. The method of claim 1, wherein the photovoltaic unit, A first electrode layer attached to the substrate; A semiconductor layer positioned on an outer layer of the first electrode layer; And A portable terminal comprising a transparent second electrode layer located on the outer surface of the semiconductor layer. The method of claim 2, And the semiconductor layer extends into the second region, and the regulator is formed in the semiconductor layer extending into the second region. The method of claim 1, The solar cell module is characterized in that formed in the battery cover covering the battery. The method of claim 1, The solar cell module is formed on the edge of the display for displaying visual information. The method of claim 1, The solar cell module is formed on a touch pad input by a touch method. The method of claim 1, And the substrate is integrally formed over the first area and the second area. The method of claim 1, The regulator formed in the second region may include any one or more of a low dropout (LDO), a DC-DC converter, and a charge pump. The method of claim 1, The regulator and the photovoltaic unit is a portable terminal, characterized in that formed by the same process. The method of claim 1, The photovoltaic unit comprises at least one unit cell. The method of claim 10, And a booster connected to the unit cell and increasing an output potential difference of the unit cell. The method of claim 10, The photovoltaic unit comprises a plurality of unit cells, wherein the unit cells are connected in parallel. The method of claim 10, The photovoltaic unit comprises a unit cell. The method of claim 11, The booster is formed in the second area.

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