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Graphene transparent conductive film, its preparation method, and liquid crystal film

A transparent conductive film, graphene technology, applied in instruments, nonlinear optics, optics, etc., can solve the problems of easy breakdown of the substrate, inability to meet the pre-tilt angle, foreign matter affecting the yield and quality of liquid crystal display devices, etc.

Active Publication Date: 2021-07-16
GRAHOPE NEW MATERIALS TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the liquid crystal is usually oriented through an alignment film, and the rubbing alignment technology is commonly used, but static electricity is generated during the rubbing alignment process, which is easy to break down the substrate, and foreign matter will also be generated to affect the yield and quality of the liquid crystal display device.
[0003] Graphene materials have excellent properties in mechanics, heat, optics and electricity. At present, using graphene as a planar alignment layer can only carry out planar alignment of liquid crystals, while coating a vertical alignment agent can only obtain a vertical alignment effect, which cannot satisfy Other pre-tilt angle requirements between 0-90°

Method used

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  • Graphene transparent conductive film, its preparation method, and liquid crystal film
  • Graphene transparent conductive film, its preparation method, and liquid crystal film
  • Graphene transparent conductive film, its preparation method, and liquid crystal film

Examples

Experimental program
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Effect test

Embodiment 1

[0083] A graphene transparent conductive film 100 includes a substrate layer 110 , a patterned graphene layer 120 and a vertical alignment layer 130 arranged in sequence.

[0084] Wherein, the material of the substrate layer 110 is PI, and the thickness is 0.5 μm. The thickness of the patterned graphene layer 120 is 0.3 nm. The vertical alignment agent constituting the vertical alignment layer 130 is dodecylbenzenesulfonic acid. The area percentages of the vertical alignment layer 130 and the graphene region 122 are 5%:95%.

[0085] A preparation method of the above-mentioned graphene transparent conductive film 100, comprising:

[0086] The substrate layer 110 is ultrasonically cleaned with ethanol, acetone, and deionized water, rinsed with deionized water, and then air-dried or oven-dried with nitrogen.

[0087] A graphene layer is formed on the surface of the cleaned substrate layer 110 by chemical vapor deposition. The graphene layer is covered with a fine metal mask, ...

Embodiment 2

[0089] A graphene transparent conductive film 100 includes a substrate layer 110 , a patterned graphene layer 120 and a vertical alignment layer 130 arranged in sequence.

[0090] Wherein, the material of the substrate layer 110 is PET, and the thickness is 1 μm. The thickness of the patterned graphene layer 120 is 0.35 nm. The vertical alignment agent constituting the vertical alignment layer 130 is octadecylbenzenesulfonic acid. The area percentages of the vertical alignment layer 130 and the graphene region 122 are 30%:70%.

[0091] A preparation method of the above-mentioned graphene transparent conductive film 100, comprising:

[0092] The substrate layer 110 is ultrasonically cleaned with ethanol, acetone, and deionized water, rinsed with deionized water, and then air-dried or oven-dried with nitrogen.

[0093] A graphene oxide layer is formed on the surface of the cleaned substrate layer 110 by a spin coating method. The graphene oxide layer is covered with a fine m...

Embodiment 3

[0095] A graphene transparent conductive film 100 includes a substrate layer 110 , a patterned graphene layer 120 and a vertical alignment layer 130 arranged in sequence.

[0096] Wherein, the material of the substrate layer 110 is PI, and the thickness is 10 μm. The thickness of the patterned graphene layer 120 is 1.1 nm. The vertical alignment agent constituting the vertical alignment layer 130 is 1,4'-dodecyloxy-4-hydroxybiphenyl. The area percentages of the vertical alignment layer 130 and the graphene region 122 are 50%:50%.

[0097] A preparation method of the above-mentioned graphene transparent conductive film 100, comprising:

[0098] The substrate layer 110 is ultrasonically cleaned with ethanol, acetone, and deionized water, rinsed with deionized water, and then air-dried or oven-dried with nitrogen.

[0099] A graphene layer is formed on the surface of the cleaned substrate layer 110 by chemical vapor deposition. The graphene layer is covered with a fine metal ...

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Abstract

The application provides a graphene transparent conductive film, a preparation method thereof, and a liquid crystal film, which belong to the field of photoelectric display. The graphene transparent conductive film contains a substrate layer, a patterned graphene layer and a vertically oriented layer arranged in sequence, and the patterned graphene layer contains multiple graphene oxide regions and multiple graphene regions, graphene oxide regions and graphene regions Arranged alternately in at least one direction, the vertical alignment layer includes a plurality of alignment layer regions, and the plurality of alignment layer regions are connected to the plurality of graphene oxide regions in one-to-one correspondence. Different pretilt angles are obtained by adjusting the area ratio of the graphene region and the vertical alignment layer. The preparation method of the graphene transparent conductive film comprises forming a patterned graphene layer on the surface of a substrate layer; and forming a vertical alignment layer on the surface of multiple graphene oxide regions. The liquid crystal film contains a liquid crystal layer and two layers of graphene transparent conductive films, the liquid crystal layer is arranged between the two layers of graphene transparent conductive films, and the vertical alignment layers of the two layers of graphene transparent conductive films are all arranged on the side close to the liquid crystal layer.

Description

technical field [0001] The present application relates to the field of photoelectric display, in particular, to a graphene transparent conductive film, a preparation method thereof, and a liquid crystal film. Background technique [0002] Liquid crystal alignment technology affects the performance of liquid crystal devices to a great extent. At present, liquid crystals are usually aligned through an alignment film, and rubbing alignment technology is commonly used, but static electricity is generated during the rubbing alignment process, which is easy to break down the substrate, and foreign matter will also be generated to affect the yield and quality of liquid crystal display devices. [0003] Graphene materials have excellent properties in mechanics, heat, optics and electricity. At present, using graphene as a planar alignment layer can only carry out planar alignment of liquid crystals, while coating a vertical alignment agent can only obtain a vertical alignment effect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1337
CPCG02F1/1337G02F1/133719
Inventor 李伟伟卢珂鑫谷文翠刘兆平
Owner GRAHOPE NEW MATERIALS TECH INC
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