Title :
Eliminating crosstalk in thin-film transistor/liquid-crystal displays
Author :
Howard, Webster E. ; Alt, Paul M. ; Wisnieff, Robert L.
Author_Institution :
IBM Thomas J. Watson Res, Center, Yorktown Heights, NY, USA
fDate :
9/1/1989 12:00:00 AM
Abstract :
Liquid-crystal displays addressed by thin-film transistors are subject to crosstalk associated with parasitic capacitances. An addressing technique that provides compensation for crosstalk, eliminating its visible effects, is described. Each row-addressing time interval is subdivided into two intervals, one of which is used for normal data transfer into the row. During the other subinterval, all gates are inactive, and a compensation voltage that is complementary to the data voltage for the row being addressed is applied to each column. This technique does, however, require a factor-of-two increase in bandwidth or switching speeds
Keywords :
crosstalk; liquid crystal displays; thin film transistors; addressing technique; bandwidth; compensation voltage; crosstalk; data transfer; data voltage; parasitic capacitances; row-addressing time interval; switching speeds; thin-film transistor/liquid-crystal displays; Active matrix addressing; Active matrix liquid crystal displays; Cathode ray tubes; Circuits; Crosstalk; Electrodes; Liquid crystal displays; Liquid crystals; Thin film transistors; Voltage;
Journal_Title :
Electron Devices, IEEE Transactions on