Display device and driving method thereof

摘要

A display device includes a display panel having a plurality of source and gate lines and a plurality of pixels at intersection points of the gate lines and source lines, a gate driver configured to output a plurality of gate driving signals for driving the gate lines, a source driver configured to output a plurality of source driving signals for driving the source lines, a gray voltage generator configured to supply a plurality of gray scale voltages to the source driver, and a common voltage generator configured to generate a plurality of common voltages having different levels and to alternately supply one of the generated common voltages in sequence to the pixels per frame, the source driver being configured to output a source driving signal in response to a data signal in accordance with a level of the common voltage supplied by the common voltage generator.

主权项

1. A display device, comprising:
a display panel having a plurality of gate lines, a plurality of source lines perpendicularly intersecting the gate lines, and a plurality of pixels at intersection points of the gate lines and the source lines; a gate driver to output a plurality of gate driving signals for driving the gate lines; a source driver to output a plurality of source driving signals for driving the source lines in response to a data signal; a gray voltage generator to supply a plurality of gray scale voltages to the source driver; and a common voltage generator to generate a plurality of common voltages having different levels and to supply the common voltages to the pixels in different frames, the source driver to output at least one of the source driving signals in response to the data signal, wherein the different levels of the common voltages supplied by the common voltage generator in respective ones of the different frames correspond to different gray scale values, wherein the common voltages include two common voltages applied in consecutive frames and having different levels of a same polarity, and wherein the common voltage generator includes: a Pulse Width Modulation (PWM) circuit to generate the common voltages; and a common voltage selector to sequentially supply the common voltages to the pixels per the different frames.