发明名称 Energy saving passive matrix display device and method for driving the column voltage having reduced transitions
摘要 Method of driving a liquid crystal display by supplying selectable column voltages Gj(t) from a predetermined number of column voltages levels, selection signals to groups of mutually orthogonal p rows (p≧1) for the duration of a row selection time p×nfrc during a supcrframe nfrc to generate grey scales. The column voltage is calculated depending on the grey scales of the p pixels in a column and on the mutually orthogonal selection signals Fi for the corresponding group of rows. The row selection time is subdivided in npwm sub selection time. The grey scales are coded in grey scale tables having nfrc phases with npwm. The superframes grey scales are generated using phase mixing. The change in the column voltage level defines a transition. The column voltage has always less transitions per row selection time than the number npwm of sub selection time of the row selection time.
申请公布号 US7880704(B2) 申请公布日期 2011.02.01
申请号 US20040559914 申请日期 2004.05.27
申请人 NXP B.V. 发明人 SPEIRS CHRISTOPHER RODD;LIENHARD MARTIN
分类号 G09G3/36;G09G3/20 主分类号 G09G3/36
代理机构 代理人
主权项
地址