Cholesteric liquid crystals (CLCs) are a fascinating class of materials that have garnered significant attention in recent years due to their unique optical properties. The incorporation of chiral dopants into CLCs has been shown to further enhance these properties, leading to potential applications in a wide range of fields, including displays, sensing, biological imaging, and photonic devices. CLCs are known for their ability to selectively reflect light, circular dichroism, and optical activity, making them ideal for use in various applications. The addition of chiral dopants to CLCs can modify their optical properties, leading to enhanced luminescence, tunable emission wavelengths, and polarized emission. This chapter aims to explore the role of chiral dopants in modulating the luminescence behavior of CLCs, with a focus on their applications in displays, sensing, biological imaging, and photonic devices. We will delve into the underlying mechanisms of chiral dopant-induced luminescence and discuss the potential benefits and challenges of using CLCs in these applications. Additionally, we will examine the current state of research in this field and discuss potential future directions, including the development of new CLC materials and the exploration of novel applications.