The "Cross-over" effect is usually observed in the case of DC impulse driving ACEL (alternating current electroluminescence) matrix screen

because of the image-element capacitors crossed-coupling. On a panel of the screen

one picture may be displayed by number ways

but the DC power consumed and picture quality are changed greatly. The most important reason of this behaviors is the crossed coupling of the capacitors. Accurate calcula-tion of the equivalent capacitors and the voltages of image-elements are very important to improve the image quality and reduce the power consumption. This paper gives a new three dimention topology as analogue of the ACEL matrix screen. With the topology

also a plain and strict

way is offered to calculate the equivalent capacitors and the distribution of image-element voltages for ACEL matrix screens.