Over the past decade, perovskite light-emitting diodes (PeLEDs) have rapidly emerged as a top contender for next-generation lighting and display technologies. While previous work has largely focused on pushing device performance to its limits, the transition toward commercialization calls for a broader view of sustainability. Environmental, economic, and technical factors all play critical roles for stakeholders—from policymakers shaping legislation, to manufacturers seeking profitability, and consumers’ willingness to pay. However, such life cycle-based design thinking is not yet common practice. In this talk, we will present a life cycle assessment (LCA) and techno-economic assessment (TEA) of cutting-edge PeLEDs (including RGB, white, and near-infrared devices), highlighting the environmental impacts and cost drivers that influence their potential for sustainable commercialization. By pinpointing the key stages for improvement, we map out technical upgrade pathways to enhance sustainability. To more accurately quantify the benefits of these improvements, we introduce the concept of “relative impact mitigation time,” indicating the operational lifetime needed for PeLEDs to offset their life cycle burdens. Finally, we propose technical upgrading strategies into future PeLED research and development, thereby promoting a more holistic path toward sustainable commercialization.