Patent ID: 8884856

Claim:
A video system comprising: a sequential color liquid crystal display with a panel of pixels arranged in rows and columns, the sequential color liquid crystal display is configured to be illuminated by a light box successively in three primary colors; means for controlling grey levels on each pixel in the panel, each grey level corresponding to a video information received at an input, said means for controlling receiving video information of pixels of a selected row, and applying analog voltages corresponding to said video information onto the pixels of the selected row through their associated column; and wherein a generation circuit applies a different set of reference analog voltage values for each row in the panel, each set of analog reference voltages defining for a corresponding row a given scale of grey levels as a function of a position of a selected current row in the panel and/or a color to be displayed, so that for a same video information received at input, a grey level for a pixel is made variable according to the position of the row currently selected through said corresponding different set of analog voltage references applied, enabling uniform display performance.