An ink composition comprising: a solvent comprising one or more types of the following Chemical Formulae 1 to 4; and a charge transferring material or a light emitting material which is represented by any one of the following Chemical Formulae 1-1 to 1-32: wherein, in Chemical Formulae 1 to 4, A1 to A10 are the same as or different from each other, and each independently hydrogen; deuterium; a hydroxyl group; a carbonyl group; an ester group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted cycloalkenyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted amine group, and at least one of A1 to A10 is a hydroxyl group; a carbonyl group; an ester group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted cycloalkenyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted amine group; B1 to B8 are the same as or different from each other, and each independently hydrogen; deuterium; a hydroxyl group; a carbonyl group; an ester group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted cycloalkenyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted amine group; C1 to C5 are the same as or different from each other, and each independently hydrogen; deuterium; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted cycloalkenyl group; a substituted or unsubstituted alkoxy group; or a substituted or unsubstituted aryl group; C6 is a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted cycloalkenyl group; a substituted or unsubstituted alkoxy group; or a substituted or unsubstituted aryl group; and D1 is a substituted or unsubstituted aliphatic heterocyclic structure; Chemical Formula 1-1 Chemical Formula 1-2 Chemical Formula 1-3 Chemical Formula 1-4 Chemical Formula 1-5 Chemical Formula 1-6 Chemical Formula 1-7 Chemical Formula 1-8 Chemical Formula 1-9 Chemical Formula 1-10 Chemical Formula 1-11 Chemical Formula 1-12 Chemical Formula 1-13 Chemical Formula 1-14 Chemical Formula 1-15 Chemical Formula 1-16 Chemical Formula 1-17 Chemical Formula 1-18 Chemical Formula 1-19 Chemical Formula 1-20 Chemical Formula 1-21 Chemical Formula 1-22 Chemical Formula 1-23 Chemical Formula 1-24 Chemical Formula 1-25 Chemical Formula 1-26 Chemical Formula 1-27 Chemical Formula 1-28 Chemical Formula 1-29 Chemical Formula 1-30 Chemical Formula 1-31 Chemical Formula 1-32 a solvent comprising one or more types of the following Chemical Formulae 1 to 4; and a charge transferring material or a light emitting material which is represented by any one of the following Chemical Formulae 1-1 to 1-32: wherein, in Chemical Formulae 1 to 4, A1 to A10 are the same as or different from each other, and each independently hydrogen; deuterium; a hydroxyl group; a carbonyl group; an ester group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted cycloalkenyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted amine group, and at least one of A1 to A10 is a hydroxyl group; a carbonyl group; an ester group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted cycloalkenyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted amine group; B1 to B8 are the same as or different from each other, and each independently hydrogen; deuterium; a hydroxyl group; a carbonyl group; an ester group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted cycloalkenyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted amine group; C1 to C5 are the same as or different from each other, and each independently hydrogen; deuterium; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted cycloalkenyl group; a substituted or unsubstituted alkoxy group; or a substituted or unsubstituted aryl group; C6 is a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted cycloalkenyl group; a substituted or unsubstituted alkoxy group; or a substituted or unsubstituted aryl group; and D1 is a substituted or unsubstituted aliphatic heterocyclic structure;