DISPLAY PANEL WITH PRE-CHARGING OPERATIONS, AND METHOD FOR DRIVING THE SAME

摘要

A display panel includes a switch control circuit, a first pre-charge switch circuit and a second pre-charge switch circuit. The switch control circuit is used for comparing the most significant bits (MSBs) of data signals to generate switch control signals for controlling the first and second pre-charge switch circuits, such that data lines are pre-charged through the first and second pre-charge switch circuits respectively. A method for driving a display panel is also provided herein.

主权项

1. A display panel, comprising:
a plurality of data lines comprising a first data line and a second data line adjacent to the first data line; and a source driver coupled to the data lines, the source driver comprising:
a first latching circuit for sequentially sampling input data signals and successively generating a first former sample data signal and a first latter sample data signal, wherein the first latching circuit outputs the first former sample data signal when the first latter sample data signal is generated;a second latching circuit for sequentially sampling the input data signals and successively generating a second former sample data signal and a second latter sample data signal, wherein the second latching circuit outputs the second former sample data signal when the second latter sample data signal is generated;a transmission switch circuit coupled to the first data line and the second data line, wherein the transmission switch circuit is activated in accordance with a polarity signal and a control signal, such that a first output data signal corresponding to the first former sample data signal and a second output data signal corresponding to the second former sample data signal are transmitted through the transmission switch circuit;a switch control circuit coupled to the first latching circuit and the second latching circuit for comparing the most significant bit (MSB) of the first former sample data signal with the MSB of the first latter sample data signal and comparing the MSB of the second former sample data signal with the MSB of the second latter sample data signal, thereby generating a first switch control signal and a second switch control signal;a first pre-charge switch circuit coupled to the first data line and the switch control circuit, wherein the first pre-charge switch circuit is activated in accordance with the first switch control signal, the polarity signal and the control signal when the transmission switch circuit is deactivated, such that the first data line is pre-charged by one of a first pre-charge voltage and a second pre-charge voltage through the first pre-charge switch circuit; anda second pre-charge switch circuit coupled to the second data line and the switch control circuit, wherein the second pre-charge switch circuit is activated in accordance with the second switch control signal, the polarity signal and the control signal when the transmission switch circuit is deactivated, such that the second data line is pre-charged by the other of the first pre-charge voltage and the second pre-charge voltage through the second pre-charge switch circuit.