Display device and driving method thereof

摘要

The present invention relates to a display device and a driving method thereof. A display device according to exemplary embodiments of the present invention includes: a signal controller to process an input image signal and an input control signal to control output of a digital image signal; a gray voltage generator to generate a gray reference voltage; and a data driver to generate gray voltages based on the gray reference voltage from the gray voltage generator, to receive the digital image signal, and to output a portion selected from the generated gray voltages as a data voltage, wherein the gray reference voltage includes a first gray reference voltage for the input image signal and a second gray reference voltage for an insertion gray, and the gray voltage generator generates one of the first gray reference voltage or the second gray reference voltage according to the selection signal included in the control signal to be provided to the data driver.

主权项

1. A display device, comprising:
a controller to process an input image signal and an input control signal and to output a digital image signal and a control signal; a gray voltage generator to provide a plurality of first gray reference voltages when a selection signal is in a first state and to provide a single second gray reference voltage corresponding to an insertion gray when the selection signal is in a second state different from the first state; and a data driver to generate gray voltages based on the plurality of first gray reference voltages or the single second gray reference voltage provided from the gray voltage generator, to receive the digital image signal, to select a gray voltage corresponding to the digital image signal as a data voltage when the gray voltage generator provides the plurality of first gray reference voltages, and to generate an insertion data voltage corresponding to the insertion gray when the gray voltage generator provides the single second gray reference voltage, wherein the selection signal is periodically changed between the first state and the second state during one frame for the digital image signal.