Healthcare of display points out the impact of display technology on human health and has attracted widespread attention within the display industry. However, the current display industry does not attach enough importance to the concept and connotation of health display, blindly pursuing display performance parameters, and ignoring the high-level needs of consumers for display health. Therefore, this paper takes health display as the theme and elaborates on the concept of health display. Health display provides a comprehensive description from the top-level health display requirements to the display hardware technology requirements. Health display clearly states that health is a high-level pursuit of display, and proposes new display technology requirements and corresponding improvement strategies. Furthermore, an overview of the effects of various display parameters such as low blue light emission, red light, high color gamut, high dynamic range, low glare, no screen flicker, and high refresh rate on human health are summarized. On this basis, we explore three technical dimensions for improving healthcare of display, including spectral adaptability, brightness adaptability and frequency adaptability. The main technical strategies and development directions are proposed to improve healthcare of display in the future. We hope this article can attract the attention of display peers and transmit the concept of health display to display practitioners and consumers by combining television manufacturers and media promotion, alleviating the troubles of myopia and other eye diseases caused by the display technology.