Patent ID: 7310076

Claim:
A display apparatus comprising: plural luminance modulation elements that modulate luminance upon application of a voltage of positive polarity and do not modulate luminance upon application of a voltage of reverse polarity, each of the luminance modulation elements comprising a combination of an electron emission element and a phosphor; plural scanning electrodes parallel with each other and plural data electrodes parallel with each other, in which each of the luminance modulation elements is disposed at an intersection between the scanning electrode and the data electrode; and first driving means connected to the plural scanning electrodes and outputting scanning pulses, and second driving means connected to the plural data electrodes, wherein, at a certain time point, the scanning electrodes are grouped into those in a selected state applied with a scanning pulse and those other than described above in a non-selected state, the number of the scanning lines in the selected state is n 1 , the scanning lines in the non-selected state are grouped into non-selected state scanning lines at a high impedance state and non-selected state scanning lines at a low impedance state, the non-selected state scanning lines at the high impedance state are at a higher impedance state than the scanning lines in the selected state, and the non-selected state scanning lines at the low impedance state is in a lower impedance state than the non-selected state scanning lines at the high impedance state, and the number of the non-selected state scanning lines at the low impedance state is n 1 ×2 or more.