Abstract: A liquid crystal display in which the construction of an inverter is not complex and which can change the luminance wider than the changeable range of regulating light of the inverter is provided. An image is formed at a display control circuit and the gradations of the image is converted at a luminance regulating circuit and the converted image is inputted to a liquid crystal display section. The liquid crystal display section displays the image on a panel controlling by image data inputted a backlight which is controlled by changing an effective value of a tube current in an inverter. The luminance regulating circuit controls display gradations responding to a user setting value.

Abstract: A liquid crystal apparatus is constituted by a liquid crystal device including a pair of substrates having thereon a group of scanning electrodes and a group of data electrodes intersecting the scanning electrodes so as to form an electrode matrix, and a liquid crystal disposed between the substrates so as to form a pixel at each intersection of the scanning electrodes and the data electrode assuming an ON-state and an OFF-state; scanning signal application means for sequentially applying a scanning signal to the scanning electrodes; data signal-application means for applying data signals including a first data signal and a second data signal selectively to the data electrodes in synchronism with the scanning signal, and control means for periodically switching between a first drive mode of using the first and second data signals for providing the ON- and OFF-states, respectively, of the pixels and a second drive mode of using the first and second data signals for providing the OFF- and ON-states, respectivel