Patent ID: 8373634
Filing Date: 2013-02-12
Classification: G09G

Abstract:
1. A source driver for display devices, comprising; line pair driving blocks that are each operated to drive a first data line and a second data line being adjacent to each other in a display panel; and a control block for receiving a loading signal and a polarity signal to generate first and second loading polarity control signals and a de-multiplexing latch signal, wherein the loading signal has information of loading timing for first and second digital data, and the polarity signal has information of polarity for first and second gradation voltages, wherein each of the line pair driving blocks comprises: a data receiving portion for receiving the first and second digital data in the first and second data lines; a de-multiplexing portion for de-multiplexing the first and second digital data to generate first and second de-multiplexing data, wherein the first and second de-multiplexing data are selectively corresponding to the first and second digital data according to the first and second loading polarity control signals, and the first and second de-multiplexing data are latched in accordance with the de-multiplexing latch signal; a decoding portion for decoding the first and second de-multiplexing data to generate first and second analog data, wherein the first and second analog data have first and second polarities, respectively; and a multiplexing portion for multiplexing the first and second analog data to generate the first and second gradation voltages, wherein the first and second gradation voltages are corresponding to the first and second digital data, respectively.