Matrix addressed display system

A matrix addressed display system, comprising:

• a graphics system for generating display data;
• a display module for displaying visual information to a user of the system based on said display data;
• a display fault handling system for the detection and correction of display errors by the display module and by the graphics system;
• the graphics system having a data output and the display module having a data input, said display data provided by the graphics system to the display module from the data output to the data input, and the display module having a matrix addressed electro-optical array of display elements for displaying said visual information;
• the display elements being arranged in rows and columns and having corresponding row and column circuit lines for selectively activating each of said display elements;
• the display fault handling system further comprising:
• a display error detection means for detection of display errors;
• a display error correction means for the correction of said display errors;
• the display error correction means being connected by means of a first connection to the display module and being connected by means of a second connection to the graphic system, wherein:
• the display error detection means is connected to a plurality of said circuit lines and, in use, is arranged to monitor over a predetermined period of time at least two electrical parameters of each of said connected circuit lines, and to determine therefrom if a display error has occurred at one or more of said activated display elements, the electrical parameters including voltage rise time, voltage fall time, pulse width, pulse timing, and pulse height;
• the display error correction means includes a memory and a processing means, the processing means being connected to the display error detection means and, in use, receives and stores error data in said memory relating to said detected display errors over said period of time;
• the processing means operatively coupled to the display module and to the graphics system, wherein the display module and the graphics module, respectively, receive a reset command only from the processing means;
• and
• the processing means, in use, is responsive to said error data to send at least one reset command over the first connection to reset only the operation of the display module in an initial attempt to correct said detected display errors, and if the initial reset attempt fails, then in response to the failure of the initial reset attempt to send at least one reset command over the second connection to reset only the operation of the graphics system in a subsequent attempt to correct said detected display errors.