Patent ID: 6873309
Filing Date: 2005-03-29
Classification: G09G,H01J

Abstract:
1. A display apparatus comprising: a plurality of luminance modulation elements each modulated in luminance by a voltage of a positive polarity applied thereto, each of said luminance modulation elements being not modulated in luminance by a voltage of an opposite polarity applied thereto, each of said luminance modulation elements comprising a combination of a thin film electron emitter and a phosphor material, the thin film electron emitter having a top electrode, an electron accelertion layer, and a base electrode; a plurality of first lines electrically coupled to first electrodes of said plurality of luminance modulation elements; a plurality of second lines electrically coupled to second electrodes of said plurality of luminance modulation elements, said plurality of second lines intersecting said plurality of first lines; a first drive unit coupled to said plurality of first lines and outputting scanning pulses thereto; and a second driver unit coupled to said plurality of second lines, wherein said first drive unit subsequently sets each one of the first lines in a nonselection state to a selection state, said nonselection state of a high impedance state having a higher impedance as compared with the first lines in the selection state, and wherein in an interval for shifting said one of the first lines in the selection state to the nonselection state of the high impedance state, said first drive unit sets said one of the first lines in the selection state to a nonselection level potential of a lower impedance as compared with the high impedance state.