Patent ID: 7250926
Filing Date: 2007-07-31
Classification: G09G

Abstract:
1. A method of driving a display apparatus, the display apparatus including: a first substrate having a first surface; electron emitting elements, each configured to emit an electron beam, which are arranged on the first surface of the first substrate in a matrix form; a second substrate having a second surface which faces the first surface with a gap therebetween; an anode electrode formed at the second surface, and a phosphor layer formed on the anode electrode, and configured to emit light rays in response to irradiation of the electron beam; said display method comprising: selecting a first combination of a first anode voltage and a first element voltage; applying the first anode voltage to the anode electrode during a first period and applying the first element voltage to the electron emitting elements selectively during the first period; changing the first combination to a second combination of a second anode voltage and a second element voltage; applying the second anode voltage to the anode electrode during a second period and applying the second element voltage to the electron emitting elements selectively during the second period; changing the second combination to the first combination after the second period; and wherein the first and second periods are determined based on the first and second combinations respectively and are inverse proportional to an anode current flowing through the anode.