We produces and sells 0.42 "---- 3.37" OLED display with white, yellow, blue and white&yellow display modes. The product integrates 6800 / 8080 8-bit parallel and I2C, 3-wire / 4-wire SPI serial communication interfaces, and can be driven by 3.0 / 5.0V selective voltage. The products are applied to wearable devices, instruments and meters, industrial control displays, etc.