Patent ID: 7868860
Filing Date: 2011-01-11
Classification: G09G

Abstract:
1. A liquid crystal display device comprising: a liquid crystal display panel; and a plurality of driving circuits which drive the liquid crystal display panel, the driving circuits comprising, a first driving circuit forming in a step similar to a step for forming transistors of pixel regions provided to the liquid crystal display panel, a second driving circuit which is connected to the liquid crystal display panel after formation of the liquid crystal display panel and electrically connected with the first driving circuit in series, and a third driving circuit provided on the liquid crystal display panel and supplying a scanning voltage in each horizontal scanning period, wherein the second driving circuit is capable of supplying three different color gray scale voltage signals from one output thereof in each horizontal scanning period, to the first driving circuit, and the first driving circuit supplies one of the three different color signals to one of three pieces of video signal lines of the liquid crystal display panel changing a connection between the output and the three pieces of video signal lines.