A 13‐bit universal column driver for various displays of OLED and LCD

A universal column driver is implemented in a 0.13-mu m high-voltage CMOS process for not only TFT-LCD but also OLED applications. The proposed column driver employs 13-bit linear DAC to cover all gamma curves of display applications and address-based configuration for intra- panel interface protocol to support both TV and IT applications. Measured results demonstrate the average voltage of output channels (AVO) is under 1mv, which satisfies 1-LSB resolution at 18.5V of AVDD.