In holographic applications, coherent lasers are indispensable source of illumination. Despite high intensity from coherent light sources, they fail in full-field image projection and illustrate speckle images due to high spatial coherence. This article demonstrates speckle-free high contrast computer-generated holographic image projection upon illumination with a perovskite-polystyrene 10 wt%-based random laser. Solvent-engineered efficient and durable perovskite and perovskite-polystyrene 10 wt%-based random lasers are fabricated. Optical characterizations are elucidated and controlled coherence random lasing operation is achieved under room temperature upon addition of polystyrene concentration 10 wt% on perovskite thin film. The addition of 10 wt% polystyrene concentration results in a low far-field divergence angle of ≈10 0. The controlled coherence in random lasers is necessary to produce a stable interference pattern and to retain the depth of field in holograms. Additionally, the holographic image projection using random lasers reduces diffraction noise, and exhibits high spatial resolution with full-field imaging. Moreover, this study is clear evidence of an effective strategy to achieve high-performance, indigenous designed-controlled coherence in disordered random lasing media and its application to novel holographic image projection.

Speckled images are often a problem when using coherent lasters for full‐field holographic image projection. In article number 2000323, Subha Prakash Mallick and Zson Sung demonstrate speckle‐free image projection using a perovskite–polystyrene 10 wt%‐based random laser. Their laser system represents an effective strategy to achieve high‐performance, indigenous designed‐controlled coherence in disordered random lasing media. This could lead to applications in novel holographic image projection.