In　ultrafast　laser　glass　welding,　the　laser　beam　is　usually　focused　by　a　large　numerical　aperture　micro　objective　lens.　The　welding　is　strictly　limited　to　a　very　small　focal　volume　with　short　working　distance,　low　welding　speed,　and　narrow　weld　width,　which　limit　its　industrial　applications.　In　this　work,　a　75　W　green　femtosecond　laser　equipped　with　a　255　mm-long　focal　scanning　galvanometer　was　employed　to　achieve　non-optical　contact　high-speed　welding　of　display　screen　glasses.　The　effects　of　the　focal　position,　pulse　energy,　and　scanning　speed　on　the　weld　formation　were　obtained,　the　welding　process　window　was　also　obtained.　An　extremely　high　welding　speed　of　6　m/min　was　achieved　without　weld　defects.　In　addition,　the　welds　exhibited　a　shear　strength　of　20　MPa　as　well　as　good　seal　performance　and　transmittance,　indicating　that　our　method　has　a　great　prospect　in　industrial　applications.　©　2020,　Chinese　Lasers　Press.　All　right　reserved.