Cantor Colburn LLP
Liquid crystal display and driving method thereof
The present invention provides an LCD capable of being driven with various frequencies without deterioration of image quality. According to the present invention, a method of driving an LCD in two-dot inversion for a low vertical frequency and in one-dot inversion for a high vertical frequency is provided. The method determines whether the vertical frequency of the LCD changes, changes the inversion type into one-dot inversion if the vertical frequency is changed from a low frequency to a high frequency, and changes the inversion type into two-dot inversion if the vertical frequency is changed from a high frequency to a low frequency. Moreover, if a flicker is generated when driving in one-dot inversion, the inversion type is changed into two-dot inversion. To avoid the unequal charging generated in the LCD driven in two-dot inversion, the pulse width of the gate signals are adjusted after measuring the load of the data line.
Samsung Electronics Co., Ltd.
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inventional additional additional
Seung-Woo
Lee