Patent ID: 7995181

Claim:
A thin film transistor liquid crystal display having fast response and wide viewing angle, comprising: a first substrate with a continuous first common electrode layer; a second substrate with both a continuous pixel electrode layer and a discontinuous second common electrode layer located above the continuous pixel electrode, wherein the discontinuous second common electrode layer includes plural finger-like second common electrodes extensions connected at one end and open at the opposite end and having a gap between adjacent second common electrodes finger-like extensions; liquid crystal between the first substrate and the second substrate; and means for generating an electric field between the first common electrode layer in the first substrate and both the continuous pixel electrode layer and the discontinuous second common electrode layer in the second substrate by applying a first voltage to the continuous first common electrode layer and the continuous pixel electrode layer a second voltage not equal to the first voltage applied to the discontinuous second common electrode layer to generate the a non-vertical electric field between the first continuous common electrode layer on the first substrate and both the continuous pixel electrode layer and the discontinuous second common electrode layer in the second substrate during the bright state and applying the first voltage to the first continuous common electrode and the second voltage to the discontinuous second common electrode layer and the continuous pixel electrode layer for a uniform vertical electric field for a dark state, the first and second voltages not dependent on the input data, for a crossed-field effect in the thin film transistor liquid crystal display so that the display provides fast response to high input data rates and allows for wide viewing angles for viewers.