Displaying halftone images

摘要

A method of displaying a dynamic halftone image on a display panel comprising pixels by dividing each frame of the image into subframes and by turning on and off the subframes, comprises the steps of: finding a line of n pixels that simultaneously display a specific intensity level in a frame and another specific intensity level in the next frame; calculating the sum ”S of stimulus on a retina to be produced with a weighted corrective pulse, which will be applied to one of the n pixels, as follows: B 1 �¢ T ‰¦ B 2 �¢ T + ”S ‰¦ B 3 T, or B 1 �¢ T ‰§ B 2 �¢ T + ”S ‰§ B 3 T where T is a period in which the intensity level of the n pixels changes from one to another, B 1 is an average of stimulus on a retina due to one of the n pixels before the change, B 2 is an average of stimulus on the retina due to the same during the change, and B 3 is an average of stimulus on the retina due to the same after the change; comparing the intensity levels with each other; selecting the weighted corrective pulses, which turn on/off corresponding subframes thereby to enable/disable corresponding intensity levels, respectively, according to the n pixels and a change in the intensity levels between the frames, so that the total sum of stimulus on the retina to be produced with the corrective pulses is substantially equal to n”S; and adjusting original display signals for the n pixels according to the weighted corrective pulses, respectively.