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A method for preparing transparent conductive film on color filter

A transparent conductive film and color filter technology, applied in the field of carbon nanomaterials, can solve the problems of shortage of resources, complex equipment, high price, etc., and achieve the effect of easy operation of the film forming process, reduction of processing costs, and abundant raw materials.

Active Publication Date: 2017-02-22
INST OF METAL RESEARCH - CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, indium tin oxide (ITO) transparent conductive films are mostly used in industry, usually using thermal evaporation and magnetron sputtering, which require a vacuum system, complex equipment, and difficult operation
More importantly, In in ITO is a rare metal, which is short of resources and expensive, which makes the preparation process and materials of ITO transparent conductive film have high cost.

Method used

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  • A method for preparing transparent conductive film on color filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Sodium dodecylsulfonate was used to disperse carbon nanotubes in deionized water under the action of ultrasonic waves, and the dosage ratio (mass ratio) of carbon nanotubes to surfactant was 1:7. Then the dispersion liquid was centrifuged in a centrifuge, and the supernatant liquid was taken to obtain a carbon nanotube dispersion liquid, and the content of the carbon nanotubes in the dispersion liquid was 0.1 mg / ml.

[0032] Put the cleaned color filter on a heating table and heat it to 100°C, use the spraying method, the pressure of the spray gun is 1.2atm, spray repeatedly 8 times, and obtain a uniform carbon nanotube coating on the color filter.

[0033]Soak in HCl with a molar concentration of 2M for 60 minutes, then repeatedly rinse with deionized water to remove the surfactant on the coating, and finally dry it at 100°C to obtain a transparent conductive film of carbon nanotubes on a color filter.

[0034] Its surface resistivity was measured by the four-probe met...

Embodiment 2

[0036] Sodium dodecyl sulfate was used to disperse carbon nanotubes in deionized water under the action of ultrasonic waves, and the dosage ratio (mass ratio) of carbon nanotubes to surfactant was 1:5. Subsequently, the dispersion liquid was centrifuged in a centrifuge, and the supernatant liquid was taken to obtain a carbon nanotube dispersion liquid, and the content of the carbon nanotubes in the dispersion liquid was 0.11 mg / ml.

[0037] Put the cleaned color filter on a heating table and heat it to 100°C, use the spraying method, the pressure of the spray gun is 1.5atm, spray repeatedly 8 times, and obtain a uniform carbon nanotube coating on the color filter.

[0038] Using HNO at a molar concentration of 2M 3 Soak for 30 minutes, then repeatedly rinse with deionized water to remove the surfactant on the coating, and finally dry at 70°C to obtain a transparent conductive film of carbon nanotubes on the color filter.

[0039] The surface resistivity of the four-probe meth...

Embodiment 3

[0041] Sodium dodecylbenzenesulfonate (SDBS) was used to disperse carbon nanotubes in deionized water under the action of ultrasonic waves, and the dosage ratio (mass ratio) of carbon nanotubes to surfactant was 1:25. Subsequently, the dispersion liquid was centrifuged in a centrifuge, and the supernatant liquid was taken to obtain a carbon nanotube dispersion liquid, and the content of the carbon nanotubes in the dispersion liquid was 0.15 mg / ml.

[0042] Put the cleaned color filter on the heating table and heat it to 120°C, use the method of spraying, the pressure of the spray gun is 1.2atm, spray repeatedly 8 times, and obtain a uniform carbon nanotube coating on the color filter.

[0043] Using HNO at a molar concentration of 1M 3 Soak for 60 minutes, then repeatedly rinse with deionized water to remove the surfactant on the coating, and finally dry at 150°C to obtain a transparent conductive film of carbon nanotubes on the color filter.

[0044] Its surface resistivity ...

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Abstract

The invention relates to the field of manufacturing a carbon nanotube, a PEDOT:PSS and a composite transparent conductive film thereof, and particularly relates to a method of manufacturing a transparent conductive film on a color filter, which can be applied to a liquid crystal display based on the carbon nanotube, the PEDOT:PSS and the composite transparent conductive film thereof. The manufacturing method mainly comprises steps: a surface active agent is used or a carbon nanotube dispersion, a PEDOT:PSS dispersion or a carbon nanotube / PEDOT:PSS composite dispersion are directly prepared; in a condition of heating at a temperature of 70 to 200, the obtained dispersions are sprayed on the protection layer of the color filter to form a uniform film; the surface active agent is cleaned and removed and dried, and thus a uniform carbon nanotube, a PEDOT:PSS or a carbon nanotube / PEDOT:PSS composite transparent conductive film can be formed on the surface of the color filter. The process of the invention is simple, and problems of resource shortage of the existing indium tin oxide transparent conductive film, high price, vacuum system needing in the case of manufacturing, complicated equipment and the like are solved.

Description

technical field [0001] The invention relates to the production field of carbon nanotubes, PEDOT:PSS and composite transparent conductive films thereof, in particular to a method for preparing carbon nanotubes, PEDOT:PSS and carbon nanotubes / PEDOT:PSS composites on a color filter by a spray coating method The method of the transparent conductive film is suitable for liquid crystal displays based on carbon nanotubes, PEDOT:PSS and their composite transparent conductive films. Background technique [0002] Color filter (CF) is a key component to realize the colorization of liquid crystal flat panel display (LCD), and usually consists of glass substrate, black matrix, color layer, protective layer and transparent conductive film. Among them, the transparent conductive film is an electrode formed on the color filter, and forms positive and negative electrodes with the transparent conductive film Pattern on the array substrate, and is used to drive the liquid crystal molecules to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00
Inventor 杜金红张鼎冬任文才成会明胡韬张霞陈雅惠李泳锐罗长诚李耘付东
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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