Electric quantity display method based on long-endurance ink screen carried by notebook computer

The invention relates to the technical field of electric quantity display, in particular to an electric quantity display method based on a long-endurance ink screen carried by a notebook computer, which comprises the following steps of: solving the problem of communication between the ink screen and a micro control unit (MCU) through a serial peripheral interface (SPI) bus of a singlechip, and realizing real-time transmission of battery electric quantity related information to the ink screen; three power-saving modes of the MCU are utilized, the MCU enters the power-saving mode by controlling a power supply and a clock, and awakening is carried out by sending interruption within a certain time, so that the power consumption of the ink screen is reduced; and meanwhile, the battery information is sent to the MCU through a serial port by the embedded controller (EC) or is directly read by the MCU through an integrated circuit bus (IIC). According to the technology, the problem that the current notebook computer