Display device and method of driving the same
AssigneeSamsung Display Co., Ltd.
InventorsDong Keon KIM, Wonjong OHN, Moah CHOI
Life of this patent
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Abstract
A display device includes a data driver which outputs a data voltage of a positive polarity or a negative polarity to a data line based on the polarity control signal by a horizontal period, and a number of a positive horizontal period, in which the data voltage of the positive polarity is outputted to the data line, in a frame period is different from a number of a negative horizontal period, in which the data voltage of the negative polarity is outputted to the data line, in the frame period when the frame image data satisfy a condition of an afterimage pattern.
Claims20
A display device comprising:
- a display panel including a pixel connected to a data line and a gate line;
- an image data analyzer which analyzes whether frame image data satisfy a condition of an afterimage pattern;
- a polarity signal controller which generates a polarity control signal to control a polarity of a data voltage applied to the data line to be a positive polarity or a negative polarity with respect to a reference voltage;
- and
- a data driver which outputs the data voltage of the positive polarity or the negative polarity to the data line based on the polarity control signal by a horizontal period,
- wherein a number of a positive horizontal period, in which the data voltage of the positive polarity is outputted to the data line, in a frame period is different from a number of a negative horizontal period, in which the data voltage of the negative polarity is outputted to the data line, in the frame period when the frame image data satisfy the condition of the afterimage pattern.
A method of driving a display device which comprises a pixel connected to a data line and a gate line, the method comprising:
- analyzing whether frame image data satisfy a condition of an afterimage pattern;
- generating a polarity control signal to control a polarity of a data voltage applied to the data line to be a positive polarity or a negative polarity with respect to a reference voltage;
- and
- outputting the data voltage of the positive polarity or the negative polarity to the data line based on the polarity control signal by a horizontal period,
- wherein a number of a positive horizontal period, in which the data voltage of the positive polarity is outputted to the data line, in a frame period is different from a number of a negative horizontal period, in which the data voltage of the negative polarity is outputted to the data line, in the frame period when the frame image data satisfy the condition of the afterimage pattern.
Dependencies are inferred from the claim text.