4.2-Inch mono LCD Display 300*400| RLCD black and white screen/Monochrome Display

The 4.2-inch monochrome LCD display features a 300×400 resolution and adopts RLCD (Reflective LCD) technology for ultra-low power consumption and excellent sunlight readability. Designed with a purely reflective display mode, it does not require a backlight, making it ideal for energy-sensitive and outdoor environments. The high-contrast black and white screen ensures clear visibility even under direct sunlight, while its lightweight and thin structure supports easy integration into compact devices.