Quantum　dot　light-emitting　diodes　(QLEDs)　have　attracted　increasing　attention　due　to　their　excellent　electroluminescent　properties　and　compatibility　with　inkjet　printing　processes,　which　show　great　potential　in　applications　of　pixelated　displays.　However,　the　relatively　low　resolution　of　the　inkjet　printing　technology　limits　its　further　development.　In　this　paper,　high-resolution　QLEDs　were　successfully　fabricated　by　electrohydrodynamic　(EHD)　printing.　A　pixelated　quantum　dot　(QD)　emission　layer　was　formed　by　printing　an　insulating　Teflon　mesh　on　a　spin-coated　QD　layer.　The　patterned　QLEDs　show　a　high　resolution　of　2540　pixels　per　inch　(PPI),　with　a　maximum　external　quantum　efficiency　(EQE)　of　20.29%　and　brightness　of　35816　cd/m2.　To　further　demonstrate　its　potential　in　full-color　display,　the　fabrication　process　for　the　QD　layer　was　changed　from　spin-coating　to　EHD　printing.　The　as-printed　Teflon　effectively　blocked　direct　contact　between　the　hole　transport　layer　and　the　electron　transport　layer,　thus　preventing　leakage　currents.　As　a　result,　the　device　showed　a　resolution　of　1692　PPI　with　a　maximum　EQE　of　15.40%.　To　the　best　of　our　knowledge,　these　results　represent　the　highest　resolution　and　efficiency　of　pixelated　QLEDs　using　inkjet　printing　or　EHD　printing,　which　demonstrates　its　huge　potential　in　the　application　of　high-resolution　full-color　displays.　©　2024　American　Chemical　Society.