In a display device performing multiple gray level display using a sub-field drive method, an operation rate of a scan driver and a data driver is reduced and power consumption in the circuits are reduced. When 28 levels of gray level display is performed with 8 bits of video data, one field is equally...http://www.google.fr/patents/US7479972?utm_source=gb-gplus-shareBrevet US7479972 - Display device