Patent ID: 7227542
Filing Date: 2007-06-05
Classification: G09G

Abstract:
1. A personal computer comprising: a key board; and a liquid crystal display device, wherein n-bit digital picture signals are used to represent gradation in said liquid crystal display device where n is a natural number of 2 or more, said liquid crystal display device comprising: k pixels wherein k is a natural number of 2 or more, each of the k pixels comprising n memory circuits and a liquid crystal element, and the k pixels comprising a D/A converter circuit; means for memorizing the n-bit digital picture signals in the n memory circuits; means for selecting one out of the k pixels and then inputting the n-bit digital picture signals memorized in the selected pixel to the D/A converter circuit; and means for inputting analogue signals outputted from the D/A converter circuit to the liquid crystal element of the selected pixel.