Up-to-date laser-driven projection technology puts an urgent demand for green phosphor with stringent requirements on its performance. Herein, by virtue of a new architecture design based on CsPbBr 3 -glass nanocomposite, i.e., CsPbBr 3 glass ceramic film sintered on sapphire plate, the application availability of this famous green-emitting phosphor is demonstrated in laser-driven projection. The mono-dispersed perovskite CsPbBr 3 nanostructure in amorphous glass matrix and the negligible thermal corrosion during co-sintering with low-melting-glass ensure good luminescent properties. The robust glass host and the carried sapphire substrate with high thermal conductivity contribute to good resistances to thermal shock, moisture, and blue laser irradiation. It is revealed that the thermal accumulation effect is relieved due to the pulsed excitation of rotatory "phosphor wheel," and so the luminescence saturation threshold gets increased. The constructed prototype lighting source yields a low étendue of ≈0.41 mm 2 , a wide color gamut of 128.4% NTSC (95.9% Rec. 2020), and a moderate luminous flux of 174 lm. The present work highlights an unprecedented design that makes the seemingly impossible application of CsPbBr 3 come true.

High‐quality laser‐driven lightings require not only high luminous flux (LF) but also uniform spectral distribution. Herein, the green‐emitting Lu3Al5O12:Ce3+ (LuAG:Ce) and red‐emitting CaAlSiN3:Eu2+ (CASN:Eu) commercial phosphor powders with high‐performance are fabricated into phosphor‐in‐glass film (PiGF) sintered on sapphire plate, and further served as a motor‐driven rotatory “phosphor wheel” to receive pumping of blue laser in a reflective excitation light path. The greatly relieved thermal pressure, benefited from the high‐thermal‐conductivity sapphire substrate and the pulse‐like rotatory excitation mode, efficiently retards the occurrence of luminescence saturation. Remarkably, the photon reabsorption phenomenon in the conventional “phosphor mixture” design is well solved by introducing a smart “phosphor pattern” design, free of causing inhomogeneous angular color distribution at the same time. The constructed LuAG:Ce PiGF‐based lighting source yields high brightness of 2970 lm@21 W mm−2, and the constructed LuAG:Ce PiGF‐CASN:Eu PiGF‐based lighting source yields luminosity‐chromaticity balanced white light with LF higher than 1000 lm and color rendering index of 80–90.