Graphene transparent conductive film and method for manufacturing the same

A method for manufacturing a graphene transparent conductive, vertical alignment film for liquid crystal, comprising steps of:

• S1, mixing graphene, a surfactant, and water so as to obtain a graphene solution;
• S2, adding a vertical alignment agent for liquid crystal and PEDOT-PSS to the graphene solution so as to obtain a graphene transparent conductive film liquid;
• and
• S3, coating the graphene transparent conductive film liquid on a substrate, and removing water from the film liquid, obtaining the graphene transparent conductive, vertical alignment film for liquid crystal,
• wherein a general structural formula of the vertical alignment agent for liquid crystal, is R—Sp-Qn,
• wherein Q is a sulfonic acid group, and n is an integer in a range from 1 to 3;
• wherein Sp is a linking group, and a general structural formula thereof is —(CH2)m—, in which m is an integer in a range from 1 to 5, one or more —CH2— group(s) are each optionally substituted by a group selected from phenylene, aromatic condensed ring base, cycloalkylene, —O—, —S—, —CO—, —COO—, —OCO—, —OCOO—, —OCH2—, —CH2O—, —CH═CH—, —CF═CF—, —C═C—, —CH═CH—COO—, and —OCO—CH═CH—;
• wherein R is a hydrophobic chain selected from substituted or unsubstituted C3-20 linear or branched alkyl, in which one or more CH2 group(s) are each optionally substituted by a group selected from —O—, —CONH—, —COO—, —OCO—, —CO—, and —CH═CH—, and one or more H atom(s) are each optionally substituted by F atom(s) or CI atom(s),
• wherein when n is 1, the linking group Sp contains at least two benzene rings or aromatic condensed rings, and
• wherein the sulfonic group(s) Q(s) of the vertical alignment agent for liquid crystal are each adsorbed in the graphene, and the hydrophobic chain R of the vertical alignment agent for liquid crystal is at a surface of the graphene transparent conductive, vertical alignment film for liquid crystal.