Ink composition, layer using same, and electrophoresis device and display device comprising same

An ink composition, comprising

• (A) semiconductor nanorods;
• and
• (B) a mixed solvent including a first solvent including a compound represented by Chemical Formula 1 and a second solvent including a compound represented by Chemical Formula 2:
• wherein, in Chemical Formula 1,
• R1 to R3 are each independently a hydrogen atom or a C1 to C10 alkyl group,
• R4 is a hydrogen atom or *—C(═O)R5, wherein R5 is a C1 to C10 alkyl group,
• L1 and L2 are each independently a substituted or unsubstituted C1 to C20 alkylene group or a substituted or unsubstituted C6 to C20 arylene group, and
• L3 is *—O—*, *—S—*, or *—NH—*,
• wherein, in Chemical Formula 2,
• R6 and R7 are each independently a hydrogen atom, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C3 to C20 cycloalkyl group, or a substituted or unsubstituted C6 to C20 aryl group, and
• R8 and R9 are each independently a hydrogen atom or *—(C═O)R10, wherein R10 is a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C3 to C20 cycloalkyl group, or a substituted or unsubstituted C6 to C20 aryl group.