Dual-level LVDS technique for lines by half of reducing the data transmission LCD driver IC

A dual low-voltage differential signalling (DLVDS) circuit has been proposed aiming at reducing transmission lines for LCD driver IC. In the proposed circuit, we apply a couple of primitive data to DLVDS circuit as inputs. The inputs act as complementary signals. Then, a transmitter converts two inputs to two kinds of fully differential level signals. Thus only two transmission lines are required to transfer two primitive inputs while keeping the LVDS feature. Receiver recovers the original input data through a level decoding circuit. We designed the proposed circuit using 0.25mum CMOS technology. As the result, the circuit shows 1-Gbps/2-line data rate and 35-mW power consumption at 2.5V supply voltage, respectively.