When selecting a DSI (Display Serial Interface) LCD, you must prioritize MIPI DSI Lane Configuration (1, 2, 3, or 4 lanes) to ensure bandwidth compatibility with your processor. Key performance metrics include Resolution (e.g., 800x480, 1024x600), Brightness levels (measured in nits)—especially if the device is for outdoor use (minimum 500-1000 nits)——and Contrast Ratio. Additionally, verify the Driver IC model (e.g., ILI9881C, ST7701S) to ensure software driver availability and compatibility with your OS, such as Android, Linux, or RTOS.