WO2014208929A2

WO2014208929A2 - User terminal capable of self-charging by using sunlight charging unit

Info

Publication number: WO2014208929A2
Application number: PCT/KR2014/005391
Authority: WO
Inventors: 최병철
Original assignee: Choe Byoung Choul
Priority date: 2013-06-24
Filing date: 2014-06-19
Publication date: 2014-12-31
Also published as: WO2014208929A3

Abstract

The present invention relates to a user terminal capable of self-charging by using a sunlight charging unit and may comprise: a terminal main body comprising a battery and a display unit; a light-emitting unit positioned at the bottom of the display unit and capable of emitting light on both sides thereof in a first direction toward the display and a second direction toward a sunlight charging unit; the sunlight charging unit for converting, into electrical energy, the light received in the second direction from the light-emitting unit and charging the battery using the converted electrical energy; and a control unit for detecting the charging amount of the battery and controlling the light-emitting unit on the basis of the result of the detection.

Description

[Revision 30.07.2014 under Rule 26] User terminal capable of self-charging using solar charging unit

The present invention relates to a user terminal capable of self-charging using the solar charger.

User terminals have evolved from mobile phones in the past to notebooks, tablet PCs, personal digital assistants (PDAs), smart phones, and smart watches. Specifically, the user terminal is based on the past text-based simple data communication function and voice communication function, the camera function for taking a high-quality picture or video, the voice storage function, multimedia for transmitting and receiving audio data and video data ( By performing various functions such as multimedia) functions, the functions between the mobile terminal and the computer have been recently blurred.

Many studies have been conducted on the improved charging method from the conventional charging method through the power cable while adding hardware and / or software for implementing more functions or providing improved functions than the existing functions in the user terminal. have. For example, the wireless charging method uses magnetic induction such as Wireless Power Consortium (WPC) and Power Matters Aliance (PMA), which are supplied at a short distance by using magnetic field resonance, and power is supplied at a long distance by using a coil inside the charger. Magnetic resonance methods such as Aliance for Wireless Power (A4WP). However, even if the wireless charging method is applied to the user terminal, since the power unit is charged from the outside of the user terminal by applying the principle of electromagnetic, there is a limit that the battery can be smoothly charged without the user feeling uncomfortable. .

Among these, as the prior art of the present invention, Korean Patent Laid-Open Publication No. 10-2009-0126601 (mobile terminal and its display control method) arranges a light-transmissive display on the terminal body, and the light incident through the display therein A solar cell that generates electricity is used and a terminal for controlling the amount of generation of the solar cell by controlling the display is proposed.

However, even if the solar cell is converted into electrical energy by using light incident through the transmissive display, according to the above-described conventional technology, light cannot be transmitted through the display while the user uses the terminal to which the technology is applied. In addition, even if the terminal is not in use, there is a problem that the battery of the terminal cannot be charged smoothly by the solar cell if the terminal is placed in an environment in which the light itself incident through the translucent display itself is small.

The present invention is to provide a user terminal capable of self-charging by converting it into electrical energy using light incident from a module inside the terminal to solve the above problems.

A user terminal according to an embodiment of the present invention, the terminal body including a battery and a display unit; A light emitting unit positioned at a lower end of the display unit and capable of emitting light on both sides in a first direction toward the display and a second direction toward the solar charging unit; A solar charging unit converting light incident from the light emitting unit in the second direction into electrical energy and charging the battery from the converted electrical energy; And a controller for detecting a charge amount of the battery and controlling the light emitting unit based on a detection result.

In addition, the user terminal according to an embodiment of the present invention may further include a diffusion unit positioned between the light emitting unit and the display unit to diffuse light evenly on the display unit, and the solar charging unit may include ITO (Indium Tin Oxide), Indium Zinc Oxide (IZO), Indium Gallium Oxide (IGO), Indium Gallium Zinx Oxide (IGZO) and graphene (graphene) may include a transparent electrode manufactured by a patterning technique according to at least one have.

And, in the user terminal according to an embodiment of the present invention, when the charge amount detected for the battery reaches a first reference charge amount, the controller triggers light emission in the second direction, the charge amount detected for the battery When the second reference charge amount is reached, light emission in the second direction can be triggered, where the second reference charge amount is higher than the first reference charge amount.

In addition, the display unit in the user terminal according to an embodiment of the present invention, a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT-LCD), an organic light emitting diode (organic light) at least one display function selected from the group of a light emitting diode (OLED), a transparent OLED, a flexible display, the diffusion portion may be a polymer dispersed liquid crystal (PDLC), and the light emitting portion is a BLU of a transparent OLED. (back light unit).

According to the user terminal according to the present invention, it is possible to continuously charge the power by the light emitting unit and the solar charging unit in the user terminal without separately charging the battery of the terminal, which is remarkable that do not need to charge the battery of the user terminal every time It works.

In addition, according to the user terminal according to the present invention, the function of the display unit can be implemented in the same way as the display of the existing terminal while continuously charging the power, and the self-charging is possible, but the battery is not fully charged and discharged by the controller. A stable charging function can be realized by maintaining an appropriate level and preventing excessive heat generation from the solar charger.

Furthermore, the user terminal according to the present invention can achieve the effect of reducing the weight of the user terminal itself in that the battery can be continuously charged and used continuously even if the thickness of the battery required for the terminal is reduced and the weight thereof is reduced. have.

1 is a perspective view of a user terminal capable of self charging according to an embodiment of the present invention.

2 is a functional configuration of a user terminal capable of self-charging according to an embodiment of the present invention.

3 is a flow chart of a self-charging of a user terminal and a method for controlling the same according to an embodiment of the present invention.

4 is a signal flowchart illustrating an aspect in which self charging is performed in a user terminal by the method of FIG. 3.

5 is a block diagram illustrating an exemplary aspect of a user terminal in which a self charging function according to the present invention can be implemented.

The best mode for carrying out the present invention includes a display unit 20, a light emitting unit 40, and a solar charging unit 50 in the user terminal 1 as shown in FIG. In order to improve the quality, the display unit 20 and the light emitting unit 40 may further include a structure including the diffusion unit 30.

A self-charging user terminal according to the present invention is described in detail with reference to the drawings showing exemplary aspects of the present invention. It should be noted that the invention may be embodied in many different forms from the features defined by the claims, and any particular structures, functions, etc. described herein are exemplary only. Based on the description herein, it will be understood by those of ordinary skill in the art that the aspects described herein may be implemented independently of any other aspects.

The term "exemplary" as used herein means "an example, instance, or one provided as an example", and the "exemplary" aspect is not to be construed as limited to being preferred or advantageous over other aspects. none.

1 is a perspective view of a user terminal capable of self charging according to an embodiment of the present invention. The user terminal 1 may include a display unit 20, a light emitting unit 40, and a solar charging unit 50, and may further include a diffusion unit 30. In addition, although not shown in FIG. 1 mainly for the above configuration, the main body of the terminal 1 includes a battery and a controller. The light emitting unit 40 positioned between the display unit 20 and the solar charging unit 50 has a first direction 41a facing the display unit 20 and a second direction 41b facing the solar charging unit 50. That is, both sides can emit light upward and downward. The light emitting units 40 are not directly in contact with the display unit 20 and the solar charging unit 50, but each of the light emitting units 40 may be spaced apart from each other at predetermined predetermined intervals so as to implement their own functions. Can be.

The solar charger 50 may convert light incident from the light emitter 40 into electrical energy and charge the battery of the terminal 1 by the converted electrical energy. Meanwhile, the controller integrated in the terminal not shown in FIG. 1 may monitor the amount of charge of the battery and control the light emitting unit based on the monitoring result.

On the other hand, if the light emitting unit 40 is made of a transparent element, if the power supply to the light emitting unit 40 from the inside of the terminal is cut off and the light is transmitted from the outside through the display due to the terminal is not used, the display unit Since the 20 and the light emitter 40 are transparent to the external light source, the solar charger 50 may convert light incident from the outside into electrical energy. In this manner, the terminal according to the present invention may enable self-charging by the solar charging unit 50 even when the user does not use the terminal or when the terminal is turned off.

In addition, the diffusion unit 30, which the terminal 1 may optionally include, is positioned above the light emitting unit 40, that is, between the light emitting unit 40 and the display unit 20. By further diffusing a light source having a surface shape incident toward the display unit 20 (that is, in the first direction 41a), a role of preventing spots or defects in the rendered image output on the display unit 20 is generated. Do it. The diffuser may be a film having a pattern or a PDLC (Polymer Dispersed Liquid Crystal) having a property of varying transparency and light scattering according to an electrical input.

Although the user terminal 1 is illustrated in the form of a mobile phone terminal or a smart phone in FIG. 1, the present invention is not limited to a mobile phone or a smart phone, but is currently implemented by a user such as a laptop, a netbook, a tablet PC, a smart watch, and the like. Note that the configuration shown in FIG. 1 may be applied to a mobile terminal that employs a display unit as well as a data communication function by interworking between hardware and software.

2 is a functional configuration of a user terminal capable of self-charging according to an embodiment of the present invention. The user terminal according to the present invention includes a display unit 20, a light emitting unit 40, a solar charging unit 50, a control unit 60, and a battery 70, and optionally further includes a diffusion unit 30. can do.

The display unit 20 outputs rendered information processed by the user terminal, which may be configured as a touch screen by forming a touch function and a layer structure. The display unit 20 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT-LCD), an organic light emitting diode (OLED), a transparent organic light emitting diode (Transparent OLED), at least one display function selected from the group of flexible displays.

However, since the user terminal according to the present invention includes the light emitting unit 40 separately, the display unit 20 uses a back light unit (BLU) like the LCD or the TFT-LCD in the user terminal according to the present invention. In the case of inclusion, it means the form except this.

In addition, if the display unit 20 is based on a liquid crystal display, the first and second axis linear polarizers arranged in the shape of crossing each other or parallel to each other in the upper and lower portions are arranged inside, which is a liquid crystal array In order to transmit the light having the linear polarization characteristic to the outside of the display unit 20.

Next, the light emitter 40 refers to a supply device capable of supplying light by emitting light on both sides (as described above with reference to FIG. 1). The light emitting unit 40 has an anode electrode, a cathode electrode, and an auxiliary electrode formed on both surfaces of a transparent substrate, and an organic material layer is stacked between the anode electrode and the cathode electrode to prevent oxidation of the organic material layer. An encapsulation layer is further formed and a transparent substrate is positioned on top of the encapsulation layer to irradiate light to both sides. For example, the light emitting unit 40 may be implemented by a BLU of a transparent OLED, a small molecule OLED (SMOLED), and a polymer OLED (POLED).

The solar charger 50 may generate electric energy by using light incident downward from the light emitter 40. For example, the solar charging unit 50 may be implemented by a solar cell using single crystal or polycrystalline silicon. When light is irradiated to the contact interface between the n-type semiconductor and the p-type semiconductor, electromotive force by light is generated and the closed circuit is closed. When formed, it is a device through which photocurrent flows.

The solar cell is provided with a transparent electrode having a light transmittance and conductivity, the transparent electrode is usually used for metal thin films such as gold, platinum, tin oxide (SnO ₂ ), indium oxide (In ₂ O ₃ ), platinum, gold, etc. Used for thin films of semiconductors. The transparent electrode of the solar cell is patterned by at least one of indium tin oxide (ITO), indium zinc oxide (IZO), indium gallium oxide (IGO), indium gallium zinc oxide (IGZO), and graphene (graphene). Can be prepared. As one example of this technique, the ITO patterning technique can form a transparent electrode by dissolving ITO and spraying it onto a glass substrate or by depositing the glass substrate in a solution. It can manufacture.

Meanwhile, when light is incident from the light emitter 40 to the solar charger 50, a part of the light may be reflected by the solar charger 50 and exposed to the display 20. In this case, since the reflectances of the light reaching the display unit 20 are different from each other, the shape output from the display unit 20 may appear as if there are spots or defects. In order to alleviate this problem, a circular polarizer is added between the light emitting unit 40 and the solar charging unit 50 (not shown in FIGS. 1 and 2), so that the light reflected from the solar charging unit 50 is linearly polarized. After indicating to be able to be absorbed by the linear polarizer attached to the display unit 20.

The diffusion unit 30 that may be selectively included in the terminal according to the present invention may be a film having a standardized pattern or a PDLC having a characteristic in which transparency and light scattering degree are different according to an electrical input. This further diffuses the light source supplied from the light emitting unit 40 to prevent stains or defects from occurring on the screen output on the display unit 20. Since the diffusion unit 30 may reduce luminance with respect to external light incident to the display unit 20, it is preferable to adjust transparency and scattering degree like PDLC, but in some cases, diffusion that constitutes a general BLU may be used. It may be implemented by including a plate.

3 is a flow chart of a self-charging of a user terminal and a method for controlling the same according to an embodiment of the present invention. First, the solar charger generates electric energy by using light incident from the light emitting part emitting light on both sides, thereby charging the battery. The controller detects the amount of charge of the battery against the maximum capacity of the battery and the minimum capacity required for the terminal, and compares the detected charge with the reference charge. Here, the reference charge amount may be the maximum and minimum capacity of the battery and the arithmetic mean value thereof (if necessary) based on detecting the charge amount of the battery. This is described in more detail in the exemplary aspect with respect to FIG. 4. And when the detected charge amount is more than a predetermined level, the control part controls the irradiation from the light emitting part to the solar charging part (that is, light emission in the second irradiation direction).

4 is a signal flowchart illustrating an aspect in which self charging is performed in a user terminal by the method of FIG. 3. In FIG. 4, it can be seen that (a) represents 25% of the battery capacity (first reference charge), (b) represents 50% of the battery capacity, and (c) represents 75% of the battery capacity (second reference charge). . These 25%, 50%, 75% are not merely exemplary values, but in connection with FIG. 3, the term "maximum battery capacity" may be 100% of the total battery capacity, but may be arbitrary to calculate 50% as an arithmetic mean value. Note that it is a value.

And (a) to (c) below the capacity display shows an ON-OFF flow chart for the irradiation (second direction irradiation) from the light emitting unit of the user terminal toward the solar charging unit according to the present invention. Here, ON means that the second direction irradiation is made from the light emitting unit, and OFF means that no second direction irradiation is made.

When the amount of charge of the battery detected by the controller is equal to or less than the first reference charge amount, the light is triggered to emit light in the second direction of the light emitting part, so that irradiation from the light emitting part to the solar charging part occurs, and the solar charging part again receives light incident from the light emitting part. It generates electrical energy to charge the battery.

And even if the second direction irradiation from the light emitting unit is made, if the solar charging unit continuously converts the electrical energy from the light energy to prevent the terminal itself from overheating, the second direction irradiation from the light emitting unit is within a critical period in advance. It can be seen in the flowchart that the temporary OFF is repeated at a determined time interval.

On the other hand, as a result of charging the battery, when the battery charge reaches a specific point of time or more than the second reference charge amount, the trigger is prevented from irradiating the second direction of the light emitting part, thereby preventing the irradiation from the light emitting part to the solar charging part. .

By this process, the terminal according to the present invention can be repeatedly charged so that the battery is not discharged by using the light incident from the light emitting unit to the solar charging unit.

5 is a block diagram illustrating an exemplary aspect of a user terminal in which a self charging function according to the present invention can be implemented. In FIG. 5, the display / touch screen 20, the diffuser 30, the light emitting unit 40, the solar charging unit 50, the light emission charging controller 60, and the battery 70 are the same as in FIGS. 1 to 2. Parts described using symbols and their functions correspond, and the methods / operations described by way of example in FIGS. 3 to 4 can be performed around these components.

As shown in FIG. 5, the user terminal may be designed as a system on chip centering on the digital signal processor (DSP) 11 and the analog signal processor 12 respectively connected to the battery 70. The system on chip may also be connected to the display / touch screen 20, the vibration sensor 81, and the headset 82 outside the system on chip by at least some of the components configuring the system on chip.

Power on the other components around the digital signal processor 11 and the analog signal processor 12 on the system on chip can be supplied from the battery 70. In order to emphasize the function of the terminal according to the present invention, the display / touch screen 20, the diffuser 30, the light emitting unit 40, the solar charging unit 50, the light emission charging controller 60, the battery 70 In other words, the light emitter 40 is connected to the display controller 22 (via the diffuser 30) to the display / touch screen 20, where the display / touch screen 20 integrates a touch sensor. It will be seen that the display unit implemented. In addition, the light emitting unit 40 is connected to the solar charging unit 50, the solar charging unit 50 may charge the battery 70 by converting the light incident from the light emitting unit 40 into electrical energy, the light emitting charge The controller 60 may control the light emitting unit 40 by monitoring the charge amount of the battery 70.

The digital signal processor 11 includes a USB controller 13, a SIM 14, a camera 84, a memory 15, a video CODEC 17, an audio CODEC 18, a touch screen controller 21, a display controller ( The analog signal processor 12 connected to the digital signal processor 11 is connected to the transceiver 16 and the audio CODEC 18. The video CODEC 17 and the audio CODEC 18 may be connected to the video amplifier 171 and the audio amplifier 181 which are the respective amplifiers to complement the video and audio reproduction functions.

In FIG. 5, the battery 70 is shown between the digital signal processor 11 and the analog signal processor 12 and in the center of the system on chip to emphasize the meaning of power supply, but it is shown on a two-dimensional plane. Of course, only for the convenience of the electrical signal transmission system can be different. In addition, FIG. 5 shows only some functional modules for illustratively describing the user terminal according to the present invention, and the user terminal according to the present invention necessarily includes only these components by the components represented in FIG. 5. Note no.

Although embodiments according to the present invention have been described above, these are only specific exemplary embodiments, and those skilled in the art to which the present invention pertains have various changes, modifications, modifications, and equivalents thereto. It will be appreciated that other embodiments are possible.

The user terminal according to the present invention is applicable to a display device for displaying an image, and is portable to a mobile phone, a tablet PC, etc., and is used for a device for displaying an image to reduce power consumption and power charging. The same effect can be obtained when the structure of the present invention is applied to a device that is mounted, mounted, or installed to represent an image.

Claims

A terminal main body including a battery and a display;

A light emitting unit positioned at a lower end of the display unit and capable of emitting light on both sides in a first direction toward the display and a second direction toward the solar charging unit;

A solar charging unit converting light incident from the light emitting unit in the second direction into electrical energy and charging the battery from the converted electrical energy; And

A control unit for detecting the charge amount of the battery and controlling the light emitting unit based on the detection result

Including,

User terminal.
The method of claim 1,

Located between the light emitting unit and the display unit further comprises a diffuser for uniformly diffusing light on the display, wherein the diffuser is PDLC (Polymer Dispersed Liquid Crystal),

User terminal.
The method of claim 1,

The solar charging unit is manufactured by a patterning technique according to at least one of indium tin oxide (ITO), indium zinc oxide (IZO), indium gallium oxide (IGO), indium gallium zinx oxide (IGZO), and graphene (graphene). Characterized in that it comprises a transparent electrode,

User terminal.
The method of claim 1,

The control unit triggers light emission in the second direction when the detected charge amount reaches the first reference charge amount, and triggers light emission blocking in the second direction when the detected charge amount reaches the second reference charge amount. The second reference charge amount is higher than the first reference charge amount,

User terminal.
The method according to any one of claims 1 to 4,

The light emitting unit is characterized in that the transparent OLED BLU (Organic Light Emitting Diode Back Light Unit),

User terminal.