matrix array in a sentence

1. Matrix arrays are fundamental to modern flat-panel displays.
2. As the holes are replaced with electrons, the resultant charge pattern in the selenium layer is read out by a TFT array, active matrix array, electrometer probes or microplasma line addressing.
3. Characters were printed using a 5x7 dot matrix array of wires; the device from which it derived the shape of the character was a metal plate, called the " code plate, " with space for 1960 pins ( 35 pins times 56 printable characters ).
4. It's difficult to find matrix array in a sentence.