KR20120056590A - Conductive polymer composition and conductive film using the same - Google Patents

Abstract

The present invention relates to a conductive film having a photochromic property, including a photochromic material, having a high light transmittance, a conductive polymer composition having a high electrical conductivity, and a transparent electrode composed of the conductive polymer composition.

Description

Conductive polymer composition and conductive film using the same

The present invention relates to a conductive polymer composition and a conductive film using the same.

As computers using digital technology are developed, auxiliary devices of computers are being developed together. Personal computers, portable transmission devices, and other personal information processing devices use various input devices such as a keyboard and a mouse. To perform text and graphics processing.

However, as the use of computers is gradually increasing due to the rapid progress of the information society, there is a problem that it is difficult to efficiently operate a product by using only a keyboard and a mouse which are currently playing an input device. Therefore, there is an increasing need for a device that is simple and less error-prone, and that allows anyone to easily input information.

In addition, the technology related to the input device has shifted its attention to high reliability, durability, innovation, design and processing related technology beyond the level that meets the general function, and in order to achieve this purpose, information input such as text, graphics, etc. Touch screens have been developed as possible input devices.

The touch panel is a display surface of an electronic organizer, a liquid crystal display device (LCD), a flat panel display device such as a plasma display panel (PDP), an electroluminescence (El), and an image display device such as a cathode ray tube (CRT). Is a tool used to allow a user to select desired information while viewing the image display apparatus.

The types of touch panel are resistive type, capacitive type, electro-magnetic type, SAW type, surface acoustic wave type, and infrared type. Separated by. These various touch panels are adopted in electronic products in consideration of the problems of signal amplification, difference in resolution, difficulty of design and processing technology, optical characteristics, electrical characteristics, mechanical characteristics, environmental characteristics, input characteristics, durability, and economics. Currently, resistive touch panels and capacitive touch panels are the most widely used methods.

In the case of the resistive touch panel, the upper and lower transparent electrode films are arranged to be spaced apart from each other by a spacer and to be in contact with each other by being pressed. When the upper conductive film on which the upper transparent electrode film is formed is pressed by an input means such as a finger or a pen, the upper / lower transparent electrode film is energized. The control unit recognizes the voltage change in accordance with the change in resistance value at that position, There are digital resistance film type and analog resistance film type.

In the capacitive touch panel, the upper conductive film on which the first transparent electrode is formed and the lower conductive film on which the second transparent electrode is formed are spaced apart from each other, and an insulating material is inserted to prevent the first transparent electrode and the second transparent electrode from contacting each other. In addition, electrode wirings connected to the transparent electrode are formed on the upper conductive film and the lower conductive film. The electrode wiring transmits a change in capacitance generated in the first transparent electrode and the second transparent electrode to the controller as the input unit contacts the touch screen.

In general, the touch screen includes a transparent substrate, an indium tin oxide (ITO) electrode, and a window plate on the top thereof to protect other components.

At this time, the touch screen is a transparent substrate, the ITO electrode and the window plate are all made of a transparent material so that the image from the display on the bottom, so that the external light enters the inside of the touch screen, the interior generated from the display Light may also be transmitted to the outside of the touch screen.

Such a touch screen had a problem in that the touch screen could not be effectively blocked to reduce the visibility of the touch screen. Specifically, when the touch screen is used outdoors with strong sunlight, when the external light enters the touch screen, the touch screen Each interface of, for example, is reflected at the interface between the window plate and the transparent substrate, the reflected light is carried out to the outside of the touch screen distorted the display image of the lower portion of the touch screen. In addition, there is a problem that it is difficult to recognize the display image itself due to glare when the reflected light is strong.

In order to solve the problem of visibility of the touch screen, in the conventional case, the internal reflection was minimized by placing a polarizer or introducing a phase difference compensation film inside / outside the touch screen. However, when a polarizing plate or a phase difference compensation film is formed therein, visibility problems due to external light are solved, but the overall transmittance is lowered, which affects an image from a display.

The present invention has been made to solve the above problems, including a photochromic material having a photochromic property, excellent transmittance, having a high electrical conductivity conductive polymer composition and a transparent composition composed of the conductive polymer composition The present invention relates to a conductive film including an electrode. When exposed to sunlight, the transparent electrode absorbs external light by discoloring in response to sunlight, and returns back transparently in the room, thereby not affecting the transmittance to internal light. It aims to improve the visibility of the touch screen both outdoors.

공역계 전도성 고분자 20wt% ~ 70wt%, 도펀트 0.5wt% ~ 5wt%, 바인더 0.5wt% ~ 10wt%, 유기용매 10wt% ~ 75wt%, 및 광변색성 물질 1wt% ~ 10wt% 를 포함하는 것을 특징으로 한다.A conductive polymer composition according to a preferred embodiment of the present invention

20 wt% to 70 wt% of the conjugated conductive polymer, 0.5 wt% to 5 wt% of the dopant, 0.5 wt% to 10 wt% of the binder, 10 wt% to 75 wt% of the organic solvent, and 1 wt% to 10 wt% of the photochromic material. do.

The present invention is characterized in that the photochromic material is any one of spiropyranic, spirooxazine-based, azobenzoic or naphthopyran-based organic materials.

In addition, the present invention is characterized in that the photochromic material is a spirooxazine system.

공역계 전도성 고분자는 폴리티오펜계, 폴리피롤계, 폴리페닐렌계, 폴리아닐린계 또는 폴리아세틸렌계 전도성 고분자 중 어느 하나인 것을 특징으로 한다.In addition, the present invention is

The conjugated conductive polymer is characterized in that any one of a polythiophene-based, polypyrrole-based, polyphenylene-based, polyaniline-based or polyacetylene-based conductive polymer.

In addition, the present invention is characterized in that the polythiophene-based conductive polymer is polyethylenedioxythiophene / polystyrenesulfonate (PEDOT / PSS).

In the present invention, the dopant is selected from polar solvents such as dimethyl sulfoxide (DMSO), N-methylpyrrolidone (NMP), N, N-dimethylformamide (DMF) and N-dimethylacetimide (DMA). Or a mixture of two or more kinds.

The present invention is characterized in that the binder is one or a mixture of two or more selected from an acrylic binder, an epoxy binder, an ester binder, a urethane binder, an ether binder, a carboxyl binder, and an amide binder.

In addition, the present invention is characterized in that the organic solvent is one or a mixture of two or more selected from aliphatic alcohols, aliphatic ketones, aliphatic carboxylic acid esters, aliphatic carboxylic acid amides, aromatic hydrocarbons, aliphatic hydrocarbons, acetonitrile and aliphatic sulfoxides. It is done.

In another aspect, the present invention is characterized in that the conductive polymer composition further comprises a dispersion stabilizer.

In another aspect, the present invention is characterized in that the conductive polymer composition further comprises a surfactant.

In another aspect, the present invention is characterized in that the conductive polymer composition further comprises a light stabilizer.

공역계 전도성 고분자 20wt% ~ 70wt%, 도펀트 0.5wt% ~ 5wt%, 바인더 0.5wt% ~ 10wt%, 유기용매 10wt% ~ 75wt%, 및 광변색성 물질 1wt% ~ 10wt% 를 포함하는 전도성 고분자 조성물로부터 형성된 투명전극 및 상기 투명전극과 전기적으로 연결되는 전극배선을 포함하는 것을 특징으로 한다.
Conductive film according to a preferred embodiment of the present invention is formed on the base member, the base member,

Conductive polymer composition comprising 20 wt% to 70 wt%, dopant 0.5 wt% to 5 wt%, binder 0.5 wt% to 10 wt%, organic solvent 10 wt% to 75 wt%, and photochromic material 1 wt% to 10 wt% It characterized in that it comprises a transparent electrode formed from and an electrode wiring electrically connected with the transparent electrode.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

The conductive polymer composition according to the present invention has photochromic properties, and is excellent in UV stability, light transmittance, and electrical conductivity.

The conductive film according to the present invention includes a transparent electrode composed of the conductive polymer composition, and when exposed to sunlight, the transparent electrode absorbs external light by discoloring in response to sunlight, and returns back to the room transparently, thereby transmitting light to internal light. Will not affect, and visibility is excellent both indoors and outdoors.

1 to 2 are cross-sectional views of a conductive film according to a preferred embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The objectives, specific advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. In the present specification, in adding reference numerals to the components of each drawing, it should be noted that the same components as possible, even if displayed on different drawings have the same number as possible. In addition, in describing the present invention, if it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

공역계 전도성 고분자 20wt% ~ 70wt%, 도펀트 0.5wt% ~ 5wt%, 바인더 0.5wt% ~ 10wt%, 유기용매 10wt% ~ 75wt%, 및 광변색성 물질 1wt% ~ 10wt% 를 포함한다. 상기 전도성 고분자 조성물은

공역계 전도성 고분자에 광변색성 물질을 혼합함으로써 전기전도성을 갖음과 동시에 광변색성 성질을 가져 실외에서는 외광 반사에 따른 눈부심 문제를 해결하고 실내에서는 높은 투과율을 갖는 전도성 필름을 제공할 수 있다. As described above, the conductive polymer composition according to the present invention

20 wt% to 70 wt% of the conjugated conductive polymer, 0.5 wt% to 5 wt% of the dopant, 0.5 wt% to 10 wt% of the binder, 10 wt% to 75 wt% of the organic solvent, and 1 wt% to 10 wt% of the photochromic material. The conductive polymer composition

By mixing the photochromic material with the conjugated conductive polymer, it has electrical conductivity and photochromic property, thereby solving the problem of glare caused by the reflection of external light outdoors and providing a conductive film having high transmittance indoors.

Hereinafter, each component of the conductive polymer composition will be described in detail.

First of all, photochromic material is a material that causes reversible color change by UV or sunlight. It is transparent when not exposed to light, but when it is exposed to light, it changes its chemical structure and absorbs light in the long wavelength region. , Blue, yellow and so on.

Such photochromic material may be preferably any one of spiroro-based, spiroxazine-based, azobenzo-based or naphthopyran-based organic materials. In the case of an organic photochromic material, there is an advantage of excellent mixing with a conductive polymer. However, the present invention is not limited thereto, and may be an organic photochromic material and an inorganic photochromic material such as TiO ₂ or ZnS.

In this case, the photochromic material may be more preferably a spiroxazine system. Spirooxazine-based photochromic material has the advantage of excellent discoloration and stability to UV by UV irradiation. Specifically, when the spirooxazine system is irradiated with UV, spiro carbon is sp ² as oxazine is broken as in Scheme 1 below. Hybridizes to give color. When light in the long wavelength region (550 nm or more) is irradiated, spiro carbon is sp ³ It hybridizes and becomes transparent again.

<Scheme 1>

Examples of such spirooxazine-based photochromic materials include the following (a) SNO and (b) SPO.

      (a) (b)

The photochromic material is included in the composition of the present invention 1wt% ~ 10wt%, preferably 3wt% ~ 5wt% is used. When the photochromic material is less than 1 wt%, the photochromic effect by irradiation of light is very weak, and when the photochromic material is more than 10 wt%, the electrical conductivity of the conductive polymer composition is lowered. In addition, in the range of 1wt% ~ 10wt% excellent miscibility with the conductive polymer, low sheet resistance was observed through the experiment as described later in the Examples.

공역계 전도성 고분자는 탄소원자 하나 당 한개의

-전자를 갖는 전기전도성을 띄는 고분자로서 일반적으로 약 10,000 이상의 분자량을 갖는다.

공역계 전도성 고분자는 기존의 투명전극으로 일반적으로 사용되던 ITO(Indium Tin Oxide)에 비해 경량임과 동시에 유연성이 높은 박막을 얻을 수 있다는 장점이 있다. 이러한

공역계 전도성 고분자는 폴리티오펜계, 폴리피롤계, 폴리페닐렌계, 폴리아닐린계 또는 폴리아세틸렌계 중 어느 하나일 수 있다.

Conjugated conductive polymers have one carbon atom per carbon atom.

-Electroconductive polymer with electrons, generally having a molecular weight of about 10,000 or more.

Conjugated conductive polymers have the advantage of being lightweight and highly flexible thin film compared to indium tin oxide (ITO), which is generally used as a transparent electrode. Such

The conjugated conductive polymer may be any of polythiophene, polypyrrole, polyphenylene, polyaniline or polyacetylene.

In this case, the polythiophene-based conductive polymer is preferably polyethylenedioxythiophene / polystyrenesulfonate (PEDOT / PSS). Specifically, the Clevios P product of H.C Stark Co., Ltd. is used. Polyethylenedioxythiophene (PEDOT) is a polystyrene sulfonate (PSS) doped as a dopant, so it shows good water-soluble properties, and excellent thermal safety. In addition, the polyethylenedioxythiophene (PEDOT) is adjusted to the PEDOT and PSS solid content concentration in the range of 1.0 to 1.5% by weight in order to maintain optimum dispersibility in water. Since the PEDOT is well mixed with water, alcohol or a solvent having a high dielectric constant, the PEDOT can be easily coated by diluting with the solvent. When the coating film is formed, the PEDOT exhibits excellent transparency compared with other conductive polymers such as polyaniline and polypyrrole.

공역계 전도성 고분자는 20wt% ~ 70wt% 가 포함된다. 바람직하게는 25wt% ~ 65wt% 로 사용된다. 상기

공역계 전도성 고분자가 20 wt% 미만인 경우 추가적으로 도펀트로서 극성용매를 많이 사용해도 1 ㏀/㎡ 이하의 고전도성을 실현하기 어렵다. 또한, 70 wt% 를 초과하는 경우, 착색성을 가진 전도성 고분자량의 증가에 따라 투과율이 저하되며, 특히 가시광의 장파장 영역(550 ㎚ 이상)의 경우 투과율이 95 % 이하로 감소하여 바람직하지 않으며, 코팅 가공성이 용이하지 않다.
In the composition of the present invention

Conjugated conductive polymers include 20 wt% to 70 wt%. Preferably it is used at 25wt% ~ 65wt%. remind

If the conjugated conductive polymer is less than 20 wt%, it is difficult to realize high conductivity of 1 mW / m 2 or less even if a lot of polar solvent is used as a dopant. In addition, in the case of exceeding 70 wt%, the transmittance decreases with the increase of the conductive high molecular weight having colorability, and in particular, in the long wavelength region (550 nm or more) of visible light, the transmittance decreases to 95% or less, which is undesirable. Processability is not easy

The conductive polymer composition according to the present invention comprises 0.5 wt% to 5 wt% of the dopant, and the dopant disperses the conductive polymer in a solvent, thereby improving electrical conductivity. As such a dopant, an organic compound containing oxygen and nitrogen is preferable, and may be, for example, an ether group compound, a carbonyl group compound, a polar solvent or a mixture thereof.

Diethylene glycol monoethyl ether or the like is used as the compound containing the ether group, and isopron, propylene carbonate, cyclohexanone or butyrolactone is used as the compound containing the carbonyl group.

In this case, a polar solvent is preferably used as a dopant. Polar solvents are mainly used because of their excellent performance in improving the electrical conductivity of conductive polymer compositions. Dimethyl sulfoxide (DMSO), N-methylpyrrolidone (NMP), N, N-dimethylformamide (DMF) and N- It may be one or a mixture of two or more selected from polar solvents which are dimethyl acetimide (DMA).

The dopant includes 0.5 wt% to 5 wt% and preferably 1.5 wt% to 4 wt%. If the dopant is less than 0.5wt%, the electrical conductivity improvement effect is insignificant. If the dopant is more than 5wt%, the dopant may be wasted because there is no improvement in electrical conductivity due to the addition of the dopant.

In addition, the composition of the present invention comprises 0.5wt% to 10wt% of the binder, preferably 2wt% to 8wt%. The binder is added to improve adhesion with the base member. When the binder is less than 0.5wt%, the adhesion-improving effect is lowered, and when the binder is more than 10wt%, the ratio is relatively higher than that of the conductive polymer, thereby reducing the electrical conductivity of the conductive polymer composition.

Such a binder may be one or a mixture of two or more selected from an acrylic binder, an epoxy binder, an ester binder, a urethane binder, an ether binder, a carboxyl binder, and an amide binder.

In the present invention, the conductive polymer composition comprises 10wt% to 75wt% of an organic solvent, preferably 15wt% to 70wt%. An organic solvent is added to disperse the conductive polymer in the solution phase. If the organic solvent is less than 10wt%, the dispersibility of the conductive polymer is inferior, and if it exceeds 75wt%, the electrical conductivity of the conductive polymer composition is reduced.

The organic solvent may be one or a mixture of two or more selected from aliphatic alcohols, aliphatic ketones, aliphatic carboxylic acid esters, aliphatic carboxylic acid amides, aromatic hydrocarbons, aliphatic hydrocarbons, acetonitrile and aliphatic sulfoxides.

Meanwhile, the conductive polymer composition of the present invention may further include a dispersion stabilizer. Dispersion stabilizer serves to improve the electrical conductivity of the conductive polymer. In addition, the use of a dispersion stabilizer together with the polar solvent alone as a dopant has a higher electrical conductivity improvement effect. The dispersion stabilizer includes 0.5 wt% to 7 wt%, preferably 1 wt% to 5 wt%. Ethylene glycol, glycerin, sorbitol, and the like may be used as the dispersion stabilizer.

In addition, the conductive polymer composition may further include a surfactant. The surfactant serves to improve the wettability with the base member. As the surfactant, Tween 20, Tween 40, Tween 60, Tween 80, Triton X-100, etc. may be used.

In addition, the conductive polymer composition may further include a light stabilizer. The light stabilizer serves to improve the fatigue resistance of the photochromic material. As the light stabilizer, HALS or the like may be used.

The conductive film according to the present invention is formed of the base member 10, the base member 10 and composed of a transparent electrode 20 formed from the conductive polymer composition and an electrode wiring 30 electrically connected to the transparent electrode 20. do.

As shown in FIG. 1, the transparent electrode 20 is formed on one surface of the base member 10 and changes in capacitance (capacitive type) or resistance (resistance film) when the user's hand touches the touch screen. Method) is detected. The transparent electrode 20 may be a plurality of transparent electrode 20 pattern of the capacitance type or digital resistive film type, or may be a single film shape of the analog resistive film type.

The transparent electrode 20 is formed from a conductive polymer composition including a photochromic material. As shown in FIG. 1, when UV or sunlight is irradiated outdoors, the transparent electrode 20 absorbs light to have a color and thus visibility of reflected light. You can solve the problem. In addition, when the light of the long wavelength region is irradiated indoors, as shown in FIG. 2, the light becomes transparent again, and thus transmittance is increased, thereby not affecting the internal light.

Separately, the photochromic material layer may be stacked independently of the transparent electrode 20. However, since the thickness of the conductive film becomes thick, it is desirable to improve visibility by forming the transparent electrode 20 by mixing the conductive polymer composition.

Here, the transparent electrode 20 may be formed by patterning and drying the conductive polymer composition on the base member 10 through a dry process or a wet process. Dry processes include sputtering and evaporation, and wet processes include dip coating, spin coating, roll coating, and spray coating. Can be mentioned.

The base member 10 may be a glass substrate, a film substrate, a fiber substrate, or a paper substrate as a transparent member, among which the film substrate is polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polypropylene (PP). ), Polyethylene (PE), polyethylene naphthalenedicarboxylate (PEN), polycarbonate (PC), polyether sulfone (PES), polyimide (PI), polyvinyl alcohol (PVA), cyclic olefin copolymer (COC) ), Styrene polymer and the like, and is not particularly limited.

The electrode wiring 30 is electrically connected to the transparent electrode 20 to receive an electrical signal, and may be formed using a silk screen method, a gravure printing method, or an inkjet printing method. have. The electrode wiring 30 is preferably made of silver (Ag) having high electrical conductivity, and extends to the edge region of the conductive film so that its ends are collected at the edges of the lower conductive film.

Hereinafter, the present invention will be described in more detail with reference to the following Examples, but the present invention is not limited thereto.

전도성 고분자로 폴리에틸렌디옥시티오펜/폴리스티렌술포네이트(PEDOT/PSS)수용액에 넣고 교반하면서 스피로피란계 광변색성 물질을 넣고 1시간 정도 혼합하여 전도성 고분자 조성물을 제조하였다. 생성된 전도성 고분자 조성물을 베이스 부재 위에 도포한 후 100℃ 정도에서 5분간 건조하여 전도성 필름을 제조하였다. 건조 후 투명전극의 두께는 100nm ~ 200nm 수준이었다.
To the components and contents shown in Table 1 below, dimethyl sulfoxide as a dopant in an i-propanol organic solvent, an acrylic binder as a binder, ethylene glycol as a dispersion stabilizer, and

The conductive polymer was added to an aqueous solution of polyethylenedioxythiophene / polystyrenesulfonate (PEDOT / PSS) and stirred and mixed with a spiropyrane photochromic material for about 1 hour to prepare a conductive polymer composition. The resulting conductive polymer composition was applied on the base member, and dried at about 100 ° C. for 5 minutes to prepare a conductive film. After drying, the thickness of the transparent electrode was 100 nm to 200 nm.

A conductive polymer composition was prepared in the same manner as in Example 1 except for only the content ratios shown in Table 1 below.

The resulting conductive polymer composition was applied on the base member, and dried at about 100 ° C. for 5 minutes to prepare a conductive film. After drying, the thickness of the transparent electrode was 100 nm to 200 nm.

A conductive polymer composition was prepared in the same manner as in Example 1 except for only the content ratios shown in Table 1 below.

The resulting conductive polymer composition was applied on the base member, and dried at about 100 ° C. for 5 minutes to prepare a conductive film. After drying, the thickness of the transparent electrode was 100 nm to 200 nm.

A conductive polymer composition was prepared in the same manner as in Example 1 except for only the content ratios shown in Table 1 below.

The resulting conductive polymer composition was applied on the base member, and dried at about 100 ° C. for 5 minutes to prepare a conductive film. After drying, the thickness of the transparent electrode was 100 nm to 200 nm.

A conductive polymer composition was prepared in the same manner as in Example 1 except for only the content ratios shown in Table 1 below.

The resulting conductive polymer composition was applied on the base member, and dried at about 100 ° C. for 5 minutes to prepare a conductive film. After drying, the thickness of the transparent electrode was 100 nm to 200 nm.

(Unit: wt%)
Conductive polymer
(PEDOT / PSS) Photochromic substances
(Spiro ox photograph system) Dopant
(Dimethyl sulfoxide) bookbinder
(Acrylic binder) Organic solvent
(i-propanol) Dispersion Stabilizer
(Ethylene glycol) Example 1
28 One One 5 63 2 Example 2
27 3 0.97 4.85 62 2.18 Example 3
26 5 0.95 4.75 60 3.3 Example 4
25 10 0.9 4.5 57 2.6 Example 5
22 20 0.8 4 50 3.2

<Test Example>

The sheet resistance, transmittance and visibility of the conductive film prepared from the conductive polymer compositions of Examples 1 to 5 were evaluated. For sheet resistance, Loresta EP MCP-T360 manufactured by Mitsubishi Chemical was used. The transmittance was evaluated as transmittance of UV-Visible 550 nm, where the transmittance of the transparent base member was set to 100% and the transmittance after coating was expressed as a ratio. The transmittance | permeability was measured and used CM-3500d by Minolta. In the case of visibility, Examples 1-5 were compared and evaluated visually.

Sheet resistance (Ω / □) Transmittance (%) Visibility Example 1
270 80% or more X Example 2
275 80% or more ○ Example 3
280 80% or more ○ Example 4
500 80% or more ○ Example 5
1000 80% or more X

As can be seen from the experimental data results of Table 2, the photochromic color material had a low sheet resistance and excellent transmittance by mixing 3wt% to 5wt%.

Although the present invention has been described in detail through specific examples, this is for explaining the present invention in detail, and the conductive polymer composition and the conductive film according to the present invention are not limited thereto, and the technical scope of the present invention includes It will be apparent that modifications and improvements are possible to those skilled in the art. Simple modifications and variations of the present invention are all within the scope of the present invention, and the specific scope of protection of the present invention will be clarified by the appended claims.

10 base member 20 transparent electrode
30: electrode wiring

Claims (12)

20 wt% to 70 wt% of the conjugated conductive polymer, 0.5 wt% to 5 wt% of the dopant, 0.5 wt% to 10 wt% of the binder, 10 wt% to 75 wt% of the organic solvent, and 1 wt% to 10 wt% of the photochromic material. Conductive polymer composition. The method according to claim 1,
The photochromic material is a conductive polymer composition, characterized in that any one of spiropyrane, spiroxazine-based, azobenzo-based or naphthopyran-based organic materials. The method according to claim 1,
The photochromic material is a conductive polymer composition, characterized in that the spirooxazine system. The method according to claim 1,
remind

The conjugated conductive polymer is any one of a polythiophene-based, polypyrrole-based, polyphenylene-based, polyaniline-based, or polyacetylene-based conductive polymer. The method of claim 4,
The polythiophene-based conductive polymer is a polyethylene dioxythiophene / polystyrene sulfonate (PEDOT / PSS), characterized in that the conductive polymer composition. The method according to claim 1,
The dopant is one or two or more selected from polar solvents such as dimethyl sulfoxide (DMSO), N-methylpyrrolidone (NMP), N, N-dimethylformamide (DMF) and N-dimethylacetimide (DMA). A conductive polymer composition, characterized in that the mixture. The method according to claim 1,
The binder is a conductive polymer composition, characterized in that one or two or more selected from an acrylic binder, an epoxy binder, an ester binder, a urethane binder, an ether binder, a carboxyl binder, and an amide binder. The method according to claim 1,
The organic solvent is one or a mixture of two or more selected from aliphatic alcohols, aliphatic ketones, aliphatic carboxylic acid esters, aliphatic carboxylic acid amides, aromatic hydrocarbons, aliphatic hydrocarbons, acetonitrile, and aliphatic sulfoxides. Composition. The method according to claim 1,
The conductive polymer composition further comprises a dispersion stabilizer. The method according to claim 1,
The conductive polymer composition further comprises a surfactant. The method according to claim 1,
The conductive polymer composition further comprises a light stabilizer. A base member;
Is formed in the base member,

Conductive polymer composition comprising 20 wt% to 70 wt% of conjugated polymer, 0.5 wt% to 5 wt% of dopant, 0.5 wt% to 10 wt% of binder, 10 wt% to 75 wt% of organic solvent, and 1 wt% to 10 wt% of photochromic material A transparent electrode formed from; And
An electrode wiring electrically connected to the transparent electrode;
A conductive film comprising a.

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