Patent ID: 7417610
Filing Date: 2008-08-26
Classification: G09G,H04N

Abstract:
1. An image display apparatus comprising: a plurality of electron-emitting devices connected to a plurality of row wires and column wires respectively and arranged in a matrix pattern; a phosphor emitting light in response to an irradiation with an electron emitted from the electron-emitting devices; scanning means connected to said row wires and applying a selection voltage to selected ones of said row wires; modulating means connected to said column wires; gradation converting means for performing gradation conversion of input image data according to a characteristic of the phosphor; and corrected image data calculating means for calculating corrected image data, which is image data after correction for influence on a voltage applied to an electron-emitting device due to a voltage drop through said row wires, corresponding to the converted image data outputted from the gradation converting means, wherein the modulating means inputs the corrected image data, and outputs modulation signals to said column wires, and a characteristic of the gradation converting means is set so as to correct the light emission characteristics in a case of no voltage drop.