Laser-driven　projection　display　puts　forward　urgent　demand　for　color　converter　materials　to　achieve　wide-color-gamut　and　high-quality　image　presentation.　In　this　study,　a　hierarchical　structure　quantum　dots-in-glass　film　(QiGF)　is　fabricated　via　co-sintering　stable　green/red-emitting　CsPbX3@glass　(X3 =　Br3,　Br1.5I1.5)　and　commercial　low-melting　glass　on　the　sapphire　substrate.　Benefiting　from　the　well-retained　optical　properties　of　CsPbX3　quantum　dots　in　amorphous　glass　and　high　thermal　conductivity,　QiGF　succeeded　in　inhibiting　luminescence　saturation　after　20 W mm−2　blue　laser　irradiation.　A　brand-new　white-lighting　source　designed　by　coupling　a　blue　laser　with　a　pattern　＇QiGF　wheel＇　produced　ultra-narrow　blue/green/red　tri-color　emissions　and　total　luminous　flux　of　146 lm.　Accordingly,　a　QiGF-converted　laser　projection　system　is　successfully　designed　for　the　first　time,　showing　more　natural　and　real　color　restoration　for　its　wide　color　gamut　display　feature　(157%　of　conventional　light-emitting　diode　projection　and　107%　of　NTSC　standard).　The　present　study　highlights　the　practical　application　of　CsPbX3　quantum　dots　composite　as　an　efficient　laser-driven　color　converter　in　projection　display.　©　2022　Wiley-VCH　GmbH.