Display apparatus driven by DC current

In a display apparatus driven by DC current in which signal lines for applying luminance information to each of pixels, scanning lines for selecting the pixels to be applied with the luminance information are disposed in an matrix pattern;

• each of the pixels includes a light emitting element for emitting light in response to a current flowing therein, a first switching element for fetching the luminance information into corresponding one of the pixels from corresponding one of the signal lines, and a second switching element for controlling a current amount to be supplied to corresponding one of the light emitting elements in accordance with the luminance information thus fetched;
• the luminance information is fetched into each of the pixels by fetching a signal voltage of corresponding one of the signal lines when corresponding one of the scanning lines connected to the pixel is selected;
• and the luminance information thus fetched in each of the pixels is kept in corresponding one of capacitors even after the corresponding one of the scanning lines connected to the pixel is place in a non-selection state, wherein
• a predetermined one cycle until next new luminance information is taken into each of the pixels after luminance information was taken into the pixel is formed by a pixel turn-on time period and a time period for applying to corresponding one of the light emitting elements electric field with opposite polarity to electric field applied during the pixel turn-on time period and also for applying a threshold value control voltage having an opposite polarity to that of a signal voltage as the luminance information to the gate electrode of the corresponding one of the second switching elements.

In a display apparatus driven by DC current in which signal lines for applying luminance information to each of pixels, scanning lines for selecting the pixels to be applied with the luminance information are disposed in an matrix pattern;

• each of the pixels includes a light emitting element for emitting light in response to a current flowing therein, a first switching element for fetching the luminance information into corresponding one of the pixels from corresponding one of the signal lines, and a second switching element for controlling a current amount to be supplied to corresponding one of the light emitting elements in accordance with the luminance information thus fetched;
• the luminance information is fetched into each of the pixels by fetching a signal voltage of corresponding one of the signal lines when corresponding one of the scanning lines connected to the pixel is selected;
• and the luminance information thus fetched in each of the pixels is kept in corresponding one of capacitors even after the corresponding one of the scanning lines connected to the pixel is place in a non-selection state, wherein
• a signal voltage as the luminance information to be fetched into each of the pixels differs in its polarity at every cycle.