Patent ID: 7525519
Filing Date: 2009-04-28
Classification: G09G

Abstract:
1. An electron emission device comprising: a first electrode having a data signal applied thereto, the data signal having an on-voltage and an off-voltage; a second electrode having a scan signal applied thereto, the scan signal having an on-voltage and an off-voltage; and an electron emitter for emitting electrons in response to a voltage difference between the data signal and the scan signal, wherein in a first interval for applying the on-voltage of the data signal to the first electrode and the on-voltage of the scan signal to the second electrode, the first electrode and the second electrode are configured with the electron emitter to emit electrons, wherein in a second interval for applying the off-voltage of the data signal to the first electrode and the on-voltage of the scan signal to the second electrode, the first electrode and the second electrode are configured to interrupt electron emission of the electron emitter, wherein in a third interval for applying the on-voltage of the data signal to the first electrode and the off-voltage of the scan signal to the second electrode, the second electrode is configured to shield the electron emitter from an anode voltage, wherein the on-voltage of the scan signal is greater than the on-voltage of the data signal, and wherein the off-voltage of the scan signal is less than the on-voltage of the data signal.