KR20120012689A - Window liquid crystal panel using dye-sensitized solar cell module - Google Patents

Abstract

Provided is a window liquid crystal panel using a dye-sensitized solar cell module capable of driving a window liquid crystal panel using a power generated using a dye-sensitized solar cell (DSSC) module. The window liquid crystal panel using the dye-sensitized solar cell module according to the present invention can supply an applied power supply to a window liquid crystal panel such as a liquid crystal glass or a liquid crystal film by using the dye-sensitized solar cell module. The module can be integrally formed with the liquid crystal glass for windows.

Description

Liquid crystal panel for window using dye-sensitized solar cell}

The present invention relates to a liquid crystal panel for a window, and more specifically, a dye-sensitized solar cell module capable of driving a window liquid crystal panel with a power generated using a dye-sensitized solar cell (DSSC) module. It relates to a window liquid crystal panel using.

Since the development of dye-sensitized nanoparticle titanium oxide solar cells by Michael Gratzel and colleagues at the Lausanne Institute of Technology (EPFL) in 1991, much work has been done in this area. Dye-sensitized solar cells have the potential to replace conventional amorphous silicon solar cells because their manufacturing cost is significantly lower than that of conventional silicon-based solar cells. It is a photoelectrochemical solar cell whose main constituent material is a dye molecule capable of absorbing to generate an electron-hole pair, and a transition metal oxide for transferring the generated electrons.

The unit cell structure of a general dye-sensitized solar cell is based on a transparent substrate and a conductive transparent electrode formed on the surface of the transparent substrate, respectively, and a transition of dye adsorbed on the surface of the conductive transparent electrode on one side corresponding to the first electrode A metal oxide porous layer is formed, a catalyst thin film electrode is formed on the other conductive transparent electrode corresponding to the second electrode, and an electrolyte is filled between the transition metal oxide, for example, TiO ₂ , the porous electrode, and the catalyst thin film electrode. Has a structure. That is, the dye-sensitized solar cell uses an electrolyte as a hole transporting medium. The electrolyte dependence of the dye-sensitized solar cell depends on the diffusion rate of the electrolyte, and the diffusion rate is a semi-solid or high Compared with the body type, the diffusion speed is high, so the photoelectric conversion efficiency is excellent.

Meanwhile, a liquid crystal display (LCD) is a display device which injects a liquid crystal material between two glass substrates facing each other, and applies an external voltage to display an image by using an electro-optical characteristic of the liquid crystal. Devices include twisted nematic (TN), super twisted nematic (STN) using nematic liquid crystals, electrical controllable birefringence (ECB) LCDs, thin film transistor (TFT) LCDs and polymers, And polymer dispersed LCDs to be used.

On the other hand, as a related technology using the liquid crystal in the above-described liquid crystal display (LCD), Korean Patent Laid-Open No. 2004-0014385 discloses a invention named "blind using a liquid crystal element", with reference to Figure 1 Explain.

1 is a block diagram of a blind using a liquid crystal device according to the prior art.

As shown in FIG. 1, the blind using the liquid crystal device according to the related art includes a package 10 including a plurality of variable glasses 11, 12, and 13; A driver 20 for controlling each transparent / opaque state of the variable glass; A controller 30 for outputting a control signal to the driver 20; A key input unit 40 for inputting a control command to the controller 30; An illuminance detection unit 50 which detects an external illuminance and inputs it to the controller 30; A memory 60 for storing a program and control data necessary for operation in the controller 30; And a signal receiver 70 for receiving a control command signal input from the remote controller 80.

In the variable glass 11, 12, 13, the liquid crystal is inject | poured inside, and the liquid crystal plate in which the electrode protruded is fixed by a pair of glass. In this case, the liquid crystal plate maintains an opaque state by dispersing liquid crystal molecules when the power source is not connected to the electrode, and becomes transparent while the liquid crystal molecules are aligned when the power source is connected to the electrode.

The liquid crystal plate is protected by a pair of glasses and functions essentially the same as opaque glass in the opaque state and transparent glass in the transparent state.

The driver 20 individually drives each of the variable glasses 11, 12, and 13 included in the package 10, and applies or blocks a predetermined voltage to the variable glass. At this time, the variable glass is displayed in various patterns according to the presence or absence of a predetermined voltage applied thereto. At this time, the display pattern is executed in accordance with the control signal of the controller 30.

The controller 30 controls the overall operating state of the blinds, and controls them using a control program and control data stored in the memory 60. In this case, the control data includes pattern data using the variable glass.

The key input unit 40 may include a plurality of function buttons for inputting an operation command of the blind using the liquid crystal element.

According to the blind using the liquid crystal device according to the prior art, it is possible to form a black and white state of various patterns to pass or block the light incident through the window.

However, in the case of the blind using the liquid crystal device according to the prior art, it is to pass or block the light through a separate blind, and recently liquid crystal glass or liquid crystal film formed by injecting liquid crystal therein has been developed. Power is supplied to the liquid crystal driver using a commercial power source.

1) Republic of Korea Patent No. 10-0318868 (application date: January 09, 1999), the title of the invention: "polymer combination liquid crystal for liquid crystal display device" 2) Republic of Korea Patent Publication No. 2004-0014385 (published: February 14, 2004), the title of the invention: "blinds using liquid crystal elements" 3) Republic of Korea Patent No. 10-0811234 (Application Date: June 13, 2006), the title of the invention: "Translucent adjustable thin film solar cell and its manufacturing method"

The technical problem to be solved by the present invention for solving the above-described problems, a window using a dye-sensitized solar cell module that can supply the applied power to the liquid crystal panel for windows such as liquid crystal glass or liquid crystal film using a dye-sensitized solar cell module It is for providing a liquid crystal panel.

Another object of the present invention is to provide a liquid crystal panel for a window using a dye-sensitized solar cell module which can form a dye-sensitized solar cell module integrally with a window liquid crystal glass.

As a means for achieving the above-described technical problem, the window liquid crystal panel using the dye-sensitized solar cell module according to the present invention, the window liquid crystal panel in which the liquid crystal is turned on / off according to the applied power; A dye-sensitized solar cell module attached to one side of the window liquid crystal panel, generating power using sunlight or room light, and configured by connecting at least one dye-sensitized solar cell; A charging circuit converting the power generated from the dye-sensitized solar cell module into a charging voltage which is a constant voltage and controlling charging of the charging voltage; And a liquid crystal driver for driving the liquid crystal of the window liquid crystal panel using a power source generated from the dye-sensitized solar cell module, wherein the dye-sensitized solar cell module is attached to the window liquid crystal panel.

The liquid crystal panel for a window using the dye-sensitized solar cell module according to the present invention further includes a battery charged by a charge voltage provided from the charge circuit, wherein the charge circuit is generated from the dye-sensitized solar cell module. A constant voltage controller converting a power supply into a charging voltage which is a constant voltage; And a charging unit configured to charge the battery with the charging voltage output from the constant voltage controller.

Here, the charging circuit, the battery and the liquid crystal driver is characterized in that built in one housing.

The charging circuit and the liquid crystal driver may be mounted on one printed circuit board (PCB).

Here, the dye-sensitized solar cell module may be attached to the front of the window liquid crystal panel or attached to the outer portion of the window liquid crystal panel.

The liquid crystal panel for a window using the dye-sensitized solar cell module according to the present invention may further include a switch for allowing a user to switch the liquid crystal driving unit on or off.

Here, the liquid crystal panel for the window is a normally white mode that is switched to an opaque state when power is applied in a transparent state, or is normally black when power is applied in an opaque state. Characterized in that the mode is implemented, the window liquid crystal panel may be a liquid crystal glass or a liquid crystal film.

Here, the liquid crystal glass, the polymer dispersed liquid crystal that is turned on / off in accordance with the power generated from the dye-sensitized solar cell module; A transparent electrode, comprising: first and second transparent electrode films respectively formed on and under the polymer dispersed liquid crystal; First and second interlayer films respectively formed on the first and second transparent electrode films to protect the first and second transparent electrode films; And bonding glasses, which may include first and second glasses bonded to the first and second interlayer films, respectively.

Here, the liquid crystal film, the polymer dispersed liquid crystal that is turned on / off in accordance with the power generated from the dye-sensitized solar cell module; A transparent electrode, comprising: first and second transparent electrode films respectively formed on and under the polymer dispersed liquid crystal; And first and second intermediate layer films formed on the first and second transparent electrode films, respectively, to protect the first and second transparent electrode films.

On the other hand, as another means for achieving the above-described technical problem, the liquid crystal panel for a window using the dye-sensitized solar cell module according to the present invention, the liquid crystal that is turned on / off in accordance with the applied power is injected, the sunlight or room light A liquid crystal panel for a window having a dye-sensitized solar cell module generating power by using; A charging circuit converting the power generated from the dye-sensitized solar cell module in the window liquid crystal panel into a charging voltage having a constant voltage and controlling charging of the charging voltage; And a liquid crystal driving unit which drives the liquid crystal of the liquid crystal panel for the window by using the power generated from the dye-sensitized solar cell module, wherein the dye-sensitized solar cell module is integrally formed when manufacturing the liquid crystal panel for the window. It is done.

Here, the window liquid crystal panel, the polymer dispersed liquid crystal that is turned on / off according to the power generated from the dye-sensitized solar cell module; A transparent electrode, comprising: first and second transparent electrode films respectively formed on and under the polymer dispersed liquid crystal; First and second interlayer films respectively formed on the first and second transparent electrode films to protect the first and second transparent electrode films; A dye-sensitized solar cell module formed on the first interlayer film and generating power using sunlight or room light, and configured by connecting at least one dye-sensitized solar cell; And first and second glasses bonded to the dye-sensitized solar cell module and the second intermediate layer film, respectively.

According to the present invention, a dye-sensitized solar cell module can be used to supply the applied power to the liquid crystal panel for windows such as liquid crystal glass or liquid crystal film, and, for example, when the solar cell is to be covered in the midday summer home, the solar cell is powered. Light can be interrupted | blocked by turning a liquid crystal glass or a liquid crystal film on or off using it.

According to the present invention, the dye-sensitized solar cell module can be formed integrally with the liquid crystal glass.

1 is a block diagram of a blind using a liquid crystal device according to the prior art.
2 is a block diagram of a liquid crystal panel for a window using a dye-sensitized solar cell module according to an embodiment of the present invention.
3 is a view for explaining the operation of the liquid crystal in the window liquid crystal panel using a dye-sensitized solar cell module according to an embodiment of the present invention.
4 is a cross-sectional view illustrating a dye-sensitized solar cell module-attached liquid crystal film in a liquid crystal panel for a window using the dye-sensitized solar cell module according to the first embodiment of the present invention.
5 is a cross-sectional view illustrating a dye-sensitized solar cell module-attached liquid crystal glass in the window liquid crystal panel using the dye-sensitized solar cell module according to the second embodiment of the present invention.
6 is a cross-sectional view illustrating a dye-sensitized solar cell module integrated liquid crystal glass in a window liquid crystal panel using a dye-sensitized solar cell module according to a third embodiment of the present invention.
7 is a view for explaining the structure and power generation principle of the dye-sensitized solar cell according to an embodiment of the present invention.
8 is a view for explaining a charging circuit in the window liquid crystal panel using a dye-sensitized solar cell module according to an embodiment of the present invention.
9A and 9B are views illustrating a form in which the dye-sensitized solar cell module is attached to the window liquid crystal panel using the dye-sensitized solar cell module according to the embodiment of the present invention, respectively.
10A and 10B are diagrams illustrating transparent and opaque driving of a liquid crystal panel for a window using a dye-sensitized solar cell module according to an embodiment of the present invention, respectively.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. In addition, terms, such as "... part" described in the specification mean a unit for processing at least one function or operation.

2 is a block diagram of a liquid crystal panel for a window using a dye-sensitized solar cell module according to an embodiment of the present invention.

2, the window liquid crystal panel 100 using the dye-sensitized solar cell module according to an embodiment of the present invention, the dye-sensitized solar cell module 110, the window liquid crystal panel 120, the connection wiring 130 ), A charging circuit 140, a battery 150, a liquid crystal driver 160, and a switch 170. In this case, the charging circuit 140 may include a constant voltage controller 141 and a charging unit 142. .

The dye-sensitized solar cell module 110 is attached to or formed integrally with the window liquid crystal panel 120 to generate power using sunlight or room light, and at least one dye-sensitized solar cell. It is configured by connecting, and generates power using sunlight or room light. The structure and operation of each dye-sensitized solar cell will be described later with reference to FIG. 7. In this case, the dye-sensitized solar cell module 110 may be attached to the front surface of the liquid crystal panel 120 for the window or may be integrally formed.

The window liquid crystal panel 120 may be a liquid crystal film or a liquid crystal glass, and the liquid crystal turned on / off in accordance with the applied power is injected. The window liquid crystal panel 120 is in a normally white mode that is switched to an opaque state when power is applied in a transparent state, or is normally black when power is applied in an opaque state. ) Mode. For example, in the case of normally white mode, when power is applied, the arrangement of liquid crystal molecules becomes regular and light is transmitted and transparent. When the power is turned off, the arrangement of liquid crystal molecules becomes irregular and light This scattering is not transmitted and becomes opaque.

 In addition, when the window liquid crystal panel 120 is a liquid crystal glass, the liquid crystal glass has a bonded glass structure in which a liquid crystal film is sandwiched between two glasses together with an interlayer film, and the fragments are scattered even if they are strong and impact-resistant. Excellent stability. Here, the term liquid crystal glass means a glass in which a liquid crystal is injected, and the term liquid crystal film means a film in which a liquid crystal is injected.

The connection wire 130 is an electric wire connecting the dye-sensitized solar cell module 110 and the charging circuit 140 and may be implemented as a flat wire that is in close contact with a plane. In other words, the electrical wiring is preferably formed flat so as to be in close contact with the plane without protruding upward.

It includes a constant voltage control unit 141 and the charging unit 142, and converts the power generated from the dye-sensitized solar cell module 110 to a charging voltage of a constant voltage, and controls the charging of the charging voltage.

The constant voltage controller 141 controls the power output from the dye-sensitized solar cell module 110 in a constant voltage control manner, that is, converts the power generated from the dye-sensitized solar cell module 110 into a charging voltage.

The charging unit 142 charges the battery 150 with the charging voltage converted by the constant voltage control unit 141.

The battery 150 is a rechargeable rechargeable battery, and is charged by the charging voltage provided from the charging circuit. For example, the battery 150 may be a lithium polymer battery with little discharge and no memory characteristics. In this case, the charging circuit 140 and the battery 150 may be built in one housing or formed in separate housings, respectively. In addition, the charging circuit 140, the battery 150, and the liquid crystal driver 160 may be embedded in one housing, and the charging circuit 140 and the liquid crystal driver 160 may be integrated into one housing. It may be mounted on a printed circuit board (PCB), but is not limited thereto.

The switch 170 allows the user to switch the liquid crystal driver 160 on or off. For example, the switch 170 may be installed near the liquid crystal driver 160 or implemented as a remote controller for driving the liquid crystal driver 160 remotely.

According to the window liquid crystal panel using the dye-sensitized solar cell module according to an embodiment of the present invention, the dye-sensitized solar cell module is used as a power source for turning on or off the liquid crystal of the liquid crystal glass or liquid crystal film, for example, When you want to cover the light in the summer home, you can block the light by turning on or off the liquid crystal glass or liquid crystal film using a solar cell as a power source.

On the other hand, Figure 3 is a view for explaining the operation of the liquid crystal in the window liquid crystal panel using a dye-sensitized solar cell module according to an embodiment of the present invention.

Referring to FIG. 3, a liquid crystal panel for a window using a dye-sensitized solar cell module according to an embodiment of the present invention includes a liquid crystal 121, first and second ITO films 122a and 122b, and first and second intermediate layers. It includes films (123a, 123b), and fills the liquid crystal between the two glasses to apply the electricity to the liquid crystal 121 uses the property that light does not pass or pass through the glass.

In the liquid crystal panel for a window using a dye-sensitized solar cell module according to an embodiment of the present invention, it is normally white that is transparent and then becomes opaque when electricity is applied. It is a liquid crystal panel that turns black (opaque). Currently, the normally white mode includes TN (Twisted Nematic) and STN (Super TN). For example, it occupies most of the liquid crystal mainly used in mobile phones. In addition, liquid crystals used in monitors, laptops, and LCD TVs are normally black mode, which is usually opaque black, and becomes transparent when turned on.

For example, in the case of normally white mode, as shown in a) of FIG. 3, when power is applied, the arrangement of the molecules of the liquid crystal 121 becomes regular, and light is transmitted and transparent. In addition, as shown in b) of FIG. 3, when the power supply is turned off, the arrangement of the molecules of the liquid crystal 121 becomes irregular and light is scattered so that the light is not transmitted and is opaque.

4 is a cross-sectional view illustrating a dye-sensitized solar cell module-attached liquid crystal film in a liquid crystal panel for a window using the dye-sensitized solar cell module according to the first embodiment of the present invention.

Referring to FIG. 4, in the window liquid crystal panel using the dye-sensitized solar cell module according to the first embodiment of the present invention, the dye-sensitized solar cell module-attached liquid crystal film 120a includes liquid crystals 121, first and A second ITO film 122a and 122b, and first and second interlayer films 123a and 123b, each of the dye-sensitized solar cell module 110 is attached to the liquid crystal film 120a.

The liquid crystal 121 is a polymer dispersed liquid crystal and is turned on / off according to the power generated from the dye-sensitized solar cell module 110.

The first and second ITO films 122a and 122b are transparent electrodes and are formed on the upper and lower portions of the polymer dispersed liquid crystal 121, respectively. Here, ITO is Indium-Tin Oxide, which is widely used as a transparent electrode of a touch panel or a display device because it has excellent electrical conductivity and is transparent in the visible region with a band gap of 2.5 eV or more. Compared with other transparent electrode materials, the electrode pattern has excellent workability, excellent chemical and thermal stability, and low film resistance during coating.

First and second interlayer films 123a and 123b are formed on the first and second ITO films 122a and 122b to protect the first and second ITO films 122a and 122b, respectively.

5 is a cross-sectional view illustrating a dye-sensitized solar cell module-attached liquid crystal glass in the window liquid crystal panel using the dye-sensitized solar cell module according to the second embodiment of the present invention.

Referring to FIG. 5, FIG. 5 illustrates a liquid crystal glass 120b attached to a dye-sensitized solar cell module in a liquid crystal panel for a window using a dye-sensitized solar cell module according to a second embodiment of the present invention. A first and second ITO films 122a and 122b, first and second interlayer films 123a and 123b, and first and second glasses 124a and 124b, and dyes on top of the liquid crystal glass 120b. The sensitive solar cell module 110 is attached.

The liquid crystal 121 is a polymer dispersed liquid crystal and is turned on / off according to the power generated from the dye-sensitized solar cell module 110.

The first and second ITO films 122a and 122b are transparent electrodes and are formed on the upper and lower portions of the polymer dispersed liquid crystal 121, respectively.

First and second interlayer films 123a and 123b are formed on the first and second ITO films, respectively, to protect the first and second ITO films 122a and 122b.

The first and second glasses 124a and 124b are laminated glasses, and are bonded to the first and second interlayer films 123a and 123b, respectively.

6 is a cross-sectional view illustrating a dye-sensitized solar cell module integrated liquid crystal glass in a window liquid crystal panel using a dye-sensitized solar cell module according to a third embodiment of the present invention.

Referring to FIG. 6, in the liquid crystal panel for a window using the dye-sensitized solar cell module according to the third embodiment of the present invention, the liquid crystal glass integrated with the dye-sensitized solar cell module 120c includes a liquid crystal 121, first and second ITO. Films 122a and 122b, first and second interlayer films 123a and 123b, and first and second glasses 124a and 124b, wherein the dye-sensitized solar cell module 110 includes liquid crystal glass for windows. It is formed integrally inside the 120c).

The liquid crystal 121 is a polymer dispersed liquid crystal and is turned on / off according to the power generated from the dye-sensitized solar cell module 110.

 The first and second ITO films 122a and 122b are transparent electrodes and are formed on the upper and lower portions of the polymer dispersed liquid crystal 121, respectively.

First and second interlayer films 123a and 123b are formed on the first and second ITO films 122a and 122b to protect the first and second ITO films 122a and 122b, respectively.

The dye-sensitized solar cell module 110 is formed on the first interlayer film 123a, generates power using sunlight or room light, and generates at least one dye-sensitized solar cell. It is configured by connection.

First and second glasses 124a and 124b are bonded to the dye-sensitized solar cell module 110 and the second intermediate layer film 123b, respectively.

Therefore, in the liquid crystal panel for a window using the dye-sensitized solar cell module according to the third embodiment of the present invention, the liquid crystal 121 is turned on / off according to the applied power, and the solar light Eg uses the indoor light to supply power. It includes a window liquid crystal panel 123c having a dye-sensitized solar cell module to be produced, wherein the dye-sensitized solar cell module 110 is formed integrally when the window liquid crystal glass 123c is manufactured.

On the other hand, Figure 7 is a view for explaining the structure and power generation principle of the dye-sensitized solar cell according to an embodiment of the present invention.

7, the dye-sensitized solar cell module 110 according to the embodiment of the present invention is composed of a plurality of dye-sensitized solar cells, each dye-sensitized solar cell is a transparent glass substrate to which the transparent film 114 is attached (111, 112), a counter electrode (113), a working electrode (115) of nanoparticles (TiO ₂ , titanium dioxide) structure, a dye 116, an electrolyte (117) and a sealing material ( 118).

First, the dye-sensitized solar cell is formed of a simple structure filled with the nanoparticles 115 and the electrolyte 117 adsorbing a specific dye 116 between two glass substrates 111 and 112 to which the transparent electrode film 114 is attached. .

Specifically, the dye-sensitized solar cell is a cell having a concept similar to the principle of photosynthesis of plants, and includes a photosensitive dye 116 that absorbs light, a titania electrode 115 having a nanostructure supporting the dye 116, and an electrolyte ( 117), a solar cell composed of a catalyst counter electrode 113; Dye-sensitized solar cells do not use p-type and n-type semiconductor junctions like conventional silicon solar cells or thin-film solar cells, and produce electricity by electrochemical principles. It is expected to be the most suitable solar cell.

In other words, the dye-sensitized solar cell is largely composed of a working electrode 115, an electrolyte 117, and a counter electrode 113. The working electrode 115 is attached to the surface of the oxide semiconductor, where dyes 116, such as chlorophyll of plants, that receive sunlight or room light to bring electrons into a high energy state are easily absorbed.

Therefore, when external light comes into contact with the dye 116, the electromagnetic energy is obtained from the dye 116 to become electrons of high energy, which is received by the working electrode 115, which is a nanostructured oxide semiconductor (mostly TiO ₂ is used). To pass. Thereafter, the high energy electrons consume their energy while flowing in the external circuit, and reach the counter electrode 113 again. At this time, since electrons escaped from the dye 116 of the working electrode 115 to the outside, one electron is again supplied to the dye 116 from the ions inside the electrolyte 117, and the electrons returned from the outside to the counter electrode are returned again. The energy transfer process is continuously performed by being transferred to the ions in the electrolyte 117.

These processes are mainly based on the electrochemical reaction between the working electrode 115 and the electrolyte 117 and between the counter electrode 113 and the electrolyte 117, so that the larger the area where the electrode and electrolyte are in contact, the faster the reaction. Can be. In addition, the larger the surface area of the working electrode 115, the greater the amount of dye that can be attached to the amount of power that can be produced is increased. Therefore, the nanoparticles are used as the material of each of the electrodes 113 and 115, and since the surface area of the material increases dramatically in the same volume, a large amount of dye can be attached to the surface, and the electrodes 113 and 115 and the electrolyte ( It is possible to increase the rate of the electrochemical reaction between 117).

Therefore, the dye-sensitized solar cell module 110 according to the embodiment of the present invention is provided in the form of a module in which a plurality of dye-sensitized solar cells are disposed, and the liquid crystal panel for a window using the dye-sensitized solar cell module according to the embodiment of the present invention. 120 generates power from the dye-sensitized solar cell module 110 and charges the battery 150, and the liquid crystal panel 120 for the window, that is, the liquid crystal glass or the liquid crystal film using the battery 150, is charged. Drive it transparent or opaque.

On the other hand, Figure 8 is a view for explaining a charging circuit in the window liquid crystal panel using a dye-sensitized solar cell module according to an embodiment of the present invention.

Referring to FIG. 8, the window liquid crystal panel 100 using the dye-sensitized solar cell module according to the embodiment of the present invention includes a dye-sensitized solar cell module 110, a constant voltage controller 141, a charging unit 142, and a battery. In this case, the constant voltage controller 141 converts the voltage provided from the dye-sensitized solar cell module 110 into a charging voltage by using, for example, a regulator that is a constant voltage device. Here, although the constant voltage controller 141 is illustrated as using a regulator, it is apparent to those skilled in the art that the present invention is not limited thereto.

In addition, the charging unit 142 charges the battery 150 with the charging voltage converted by the constant voltage control unit 141. At this time, the LED may be added to inform that the charging.

On the other hand, Figures 9a and 9b are views illustrating a form in which the dye-sensitized solar cell module is attached to the window liquid crystal panel using the dye-sensitized solar cell module according to the embodiment of the present invention, respectively.

FIG. 9A illustrates a window-sensitive liquid crystal panel using a dye-sensitized solar cell module according to an embodiment of the present invention, in which the dye-sensitized solar cell module 110 is attached to the front surface of the liquid crystal panel 120. The solar cell module 110 is attached only to the outer portion of the window liquid crystal panel 120. As described above, the window liquid crystal panel 100 using the dye-sensitized solar cell module according to an embodiment of the present invention, the dye-sensitized solar cell module 110 and the window liquid crystal panel 120 may be formed integrally. Can be. Here, reference numeral 180 denotes a sealant, which serves to seal the liquid crystal in the window liquid crystal panel 120 so that the liquid crystal is not exposed to the outside.

10A and 10B are diagrams illustrating transparent and opaque driving of the liquid crystal panel for a window using the dye-sensitized solar cell module according to the embodiment of the present invention, respectively.

FIG. 10A illustrates a window liquid crystal panel using a dye-sensitized solar cell module according to an embodiment of the present invention, in which a liquid crystal glass 120 is installed and in a transparent state, and FIG. 10B shows an opaque state. Here, reference numeral 160 denotes a liquid crystal driver, and the liquid crystal driver 160 may selectively switch transparent and opaque states by driving the liquid crystal glass 120.

For example, when the liquid crystal glass 120 is in a normally white state, when the liquid crystal drive unit 160 applies power in a transparent state, the liquid crystal glass 120 is converted into an opaque state, and the liquid crystal glass 120 is normally in a black state. In the opaque state, the liquid crystal driver 160 may switch to the transparent state when power is applied. In this case, the power applied to the liquid crystal of the liquid crystal glass 120 by the driving of the liquid crystal driver 160 uses the dye-sensitized solar cell module 110 according to the embodiment of the present invention. Whereas the solar cell module does not generate power indoors, the dye-sensitized solar cell module 110 according to the embodiment of the present invention generates power using indoor light in the room as well as sunlight, the liquid crystal glass 120 It is possible to apply power to the liquid crystal.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

100: window liquid crystal panel using dye-sensitized solar cell module
110: dye-sensitized solar cell module
120: liquid crystal panel (liquid crystal glass / liquid crystal film) for the window
120a: liquid crystal film
120b: Dye-sensitized solar cell module attached liquid crystal glass
120c: Dye-sensitized solar cell module integrated liquid crystal glass
130: connection wiring
140: charging circuit
141: constant voltage control unit
142: charging unit
150: battery
160: liquid crystal drive unit
170: switch
180: sealant

Claims (16)

A liquid crystal panel for windows into which a liquid crystal turned on / off in accordance with an applied power source;
A dye-sensitized solar cell module attached to one side of the window liquid crystal panel, generating power using sunlight or room light, and configured by connecting at least one dye-sensitized solar cell;
A charging circuit converting the power generated from the dye-sensitized solar cell module into a charging voltage which is a constant voltage and controlling charging of the charging voltage; And
Liquid crystal driver for driving the liquid crystal of the liquid crystal panel using the power generated from the dye-sensitized solar cell module
Including,
The dye-sensitized solar cell module is a window liquid crystal panel using a dye-sensitized solar cell module, characterized in that attached to the window liquid crystal panel. The method of claim 1,
Further comprising a battery charged by the charging voltage provided from the charging circuit,
The charging circuit may include a constant voltage controller converting the power generated from the dye-sensitized solar cell module into a charging voltage which is a constant voltage; And a charging unit configured to charge the battery with a charging voltage output from the constant voltage controller.
Liquid crystal panel for windows using a dye-sensitized solar cell module comprising a. The method of claim 2,
The charging circuit, the battery and the liquid crystal drive unit is a liquid crystal panel for a window using a dye-sensitized solar cell module, characterized in that built in one housing. The method of claim 2,
The charging circuit and the liquid crystal drive unit is a liquid crystal panel for a window using a dye-sensitized solar cell module, characterized in that mounted on one printed circuit board (PCB). The method of claim 1,
The dye-sensitized solar cell module is a liquid crystal panel for a window using a dye-sensitized solar cell module, characterized in that attached to the front of the liquid crystal panel or attached to the outer portion of the liquid crystal panel. The method of claim 1,
Liquid crystal panel for a window using a dye-sensitized solar cell module further comprises a switch for the user to switch on or off the liquid crystal drive unit. The method of claim 1,
The window liquid crystal panel may be in a normally white mode in which a power state is switched to an opaque state when power is applied in a transparent state, or in a normally black mode in which a window is switched to a transparent state when power is applied in an opaque state. Liquid crystal panel for a window using a dye-sensitized solar cell module, characterized in that implemented. The method of claim 1,
The window liquid crystal panel is a window liquid crystal panel using a dye-sensitized solar cell module, characterized in that the liquid crystal glass or liquid crystal film. The method of claim 8, wherein the liquid crystal glass,
A polymer dispersed liquid crystal turned on / off in accordance with a power generated from the dye-sensitized solar cell module;
A transparent electrode, comprising: first and second transparent electrode films respectively formed on and under the polymer dispersed liquid crystal;
First and second interlayer films respectively formed on the first and second transparent electrode films to protect the first and second transparent electrode films; And
Bonded glass, wherein the first and second glasses are bonded to the first and second interlayer films, respectively.
Liquid crystal panel for windows using a dye-sensitized solar cell module comprising a. The liquid crystal film of claim 8, wherein
A polymer dispersed liquid crystal turned on / off in accordance with a power generated from the dye-sensitized solar cell module;
A transparent electrode, comprising: first and second transparent electrode films respectively formed on and under the polymer dispersed liquid crystal; And
First and second interlayer films respectively formed on the first and second transparent electrode films to protect the first and second transparent electrode films
Liquid crystal panel for windows using a dye-sensitized solar cell module comprising a. A liquid crystal panel for a window having a dye-sensitized solar cell module injecting a liquid crystal turned on / off according to an applied power source and generating power using sunlight or room light;
A charging circuit converting the power generated from the dye-sensitized solar cell module in the window liquid crystal panel into a charging voltage having a constant voltage and controlling charging of the charging voltage; And
Liquid crystal driver for driving the liquid crystal of the liquid crystal panel using the power generated from the dye-sensitized solar cell module
Including,
The dye-sensitized solar cell module is a window liquid crystal panel using a dye-sensitized solar cell module, characterized in that formed integrally during the manufacturing of the window liquid crystal panel. The liquid crystal panel for a window as claimed in claim 11,
A polymer dispersed liquid crystal turned on / off in accordance with a power generated from the dye-sensitized solar cell module;
A transparent electrode, comprising: first and second transparent electrode films respectively formed on and under the polymer dispersed liquid crystal;
First and second interlayer films respectively formed on the first and second transparent electrode films to protect the first and second transparent electrode films;
A dye-sensitized solar cell module formed on the first interlayer film and generating power using sunlight or room light, and configured by connecting at least one dye-sensitized solar cell; And
First and second glasses bonded to the dye-sensitized solar cell module and the second intermediate layer film, respectively.
Liquid crystal panel for windows using a dye-sensitized solar cell module comprising a. The method of claim 11,
The window liquid crystal panel may be in a normally white mode in which a power state is switched to an opaque state when power is applied in a transparent state, or in a normally black mode in which a window is switched to a transparent state when power is applied in an opaque state. Liquid crystal panel for a window using a dye-sensitized solar cell module, characterized in that implemented. The method of claim 11,
Further comprising a battery charged by the charging voltage provided from the charging circuit,
The charging circuit may include a constant voltage controller converting the power generated from the dye-sensitized solar cell module into a charging voltage which is a constant voltage; And a charging unit configured to charge the battery with a charging voltage output from the constant voltage controller.
Liquid crystal panel for windows using a dye-sensitized solar cell module comprising a. The method of claim 14,
The charging circuit, the battery and the liquid crystal drive unit is a liquid crystal panel for a window using a dye-sensitized solar cell module, characterized in that built in one housing. The method of claim 11,
Liquid crystal panel for a window using a dye-sensitized solar cell module further comprises a switch for the user to switch on or off the liquid crystal drive unit.

Images