Against the backdrop of increasing attention to energy conservation and environmental protection, as well as the "Dual Carbon" targets and the "Hundred Cities, Thousand Screens" initiative, energy efficiency and emission reduction in LED display screens have become one of the crucial issues to be addressed in the electrical industry. Therefore, energy-saving control technology for LED display screens is particularly important. In this paper, first adopts miniature high-brightness LED lamp beads, reducing power consumption by 15% to 40% through the use of LED chip's positive mounting structure. Secondly, a common cathode scheme is chosen to improve the energy efficiency technology of LED display products, reducing screen temperature, lowering power consumption, minimizing radiation, and extending the lifespan of the lamp beads. Finally, the paper summarizes the energy-saving standards followed in the manufacturing and design of LED display screens, and emphasizes the significant importance of accelerating the application of energy-saving technologies in the LED display industry, making contributions to the achievement of the "Dual Carbon" targets.