Patent ID: 7940236
Filing Date: 2011-05-10
Classification: G09G

Abstract:
1. A passive matrix, electro-luminescent display system for receiving an input image, processing such input image, and displaying such processed image, comprising: a. a passive matrix, electro-luminescent display having an array of column electrodes, an array of row electrodes orientated orthogonally to the array of column electrodes and an electro-luminescent layer located between the array of column electrodes and the array of row electrodes, the intersection of each column and row electrode forming an individual light-emitting element; b. one or more row drivers for providing separate signals at different times to different groups of row electrodes within the array of row electrodes wherein each group of row electrodes contains at least 5 row electrodes, wherein the row electrodes of each group simultaneously receive signal levels that are distributed such that a row electrode(s) at or near the center of the group receives a higher peak signal level and other row electrodes in the group receive lower, nonzero signal levels such that as the distance from the row electrodes(s) at or near the center increases, the signal to the other row electrodes in the group decreases, then increases to a secondary maximum and then decreases again; c. a display driver for receiving the input image signal and processing this input image signal to provide a presharpened image control signal; and d. one or more column drivers responsive to the presharpened image control signal for simultaneously providing a signal to the multiple column electrodes within the array of column electrodes at the same time signals are provided to the groups of row electrodes so that the concurrence of row and column signals causes individual light-emitting element to produce light.