TFT-LCD is also called thin film transistor liquid crystal display. Its pin diagram is as above, and its pin has corresponding pin in STM32F103. There are many commonly used LCD interfaces, including 8-bit, 9-bit, 16 bit and 18 bit. The common communication modes are 6800 mode and 8080 mode. Today, we are talking about 8080 mode. If you have been exposed to LCD1602 or LCD12864, you will find that the timing of 8080 mode is similar to that of LCD1602 or LCD12864. The 8080 interface has five basic control lines and multiple data lines. The number of data lines mainly depends on the LCD screen. There are four types: 8, 9, 16 and 18.