DIAC Display Illumination Array

DIAC Display Topology

A DIAC display is a matrix arrangement of DIAC memory cells, each having an LED pair for light emission.  Cells are arranged into rows, connected to a first terminal of each memory cell along the row, and columns connected to a second terminal of each memory cell.  As a matrix, a row of pixels may be selected by a row driver, and data may be read or written by applying pulses to column (data) electrodes.  At each row/column intersection, the memory cell will enter conduction if the combined cell voltage and applied voltage are sufficient to induce breakover conduction.

During each breakover conduction interval, the current flows through a corresponding LED. That is, the LEDs are connected in opposed-parallel configuration so that each emits light during the corresponding phase of an applied voltage.

DIAC Display