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An output buffer with slew-rate calibration for different TFT-LCD loadings is presented. Unlike other output buffers of column drivers, the proposed output buffer adjusts the output current according to the loading capacitors. The settling time and slew-rate of the proposed output buffer are thus fixed in an acceptable range for different TFT-LCD loading capacitors, allowing more accurate color quality...
Area-efficient resistor-capacitor DACs (R-C DACs) and low-offset push-pull output buffers for a 10-bit LCD source driver are proposed. Comparing to a 10-bit resistor-string DAC (R-DAC), the 10-bit R-C DAC has a smaller area. A new output buffer with a push-pull function is adopted so that the source driver can drive the pixel with two-dot inversion to save power consumption. To reduce channel to channel...
A compact low-offset voltage and low power rail-to-rail output buffer for TFT-LCD panel is presented in this paper. Compared to other push-pull output buffers, the proposed output buffer has self-bias circuit which can achieve the smaller area and the lower power consumption. Two complementary push-pull output buffers drive a pair of column lines realize the rail-to-rail driver construction. In addition,...
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