Patent ID: 7403175

Claim:
In a field emission display (FED) device comprising: rows and columns of emitters; and an anode electrode, a method of driving said FED device comprising the steps of: a) accessing a memory resident correction table to obtain a row correction value for a given row, said correction table being a look-up table indexed by row number, containing a respective correction value for each of said rows, and storing a high pass filtered correction table for providing regional row-by-row brightness corrections, said correction values used to adjust the brightness of said rows on a row-by-row basis to correct for any brightness non-uniformities of said rows; b) applying said correction value, of said given row, to a row on-time pulse to generate a corrected row on-time pulse; c) driving said given row with said corrected row on-time pulse; and d) displaying a frame by repeating said steps a) and c) for each of said rows.