Display apparatus

A display apparatus comprising:

• a plurality of pixels, each of which is supplied with a pixel data;
• a pixel capacitance for accumulating an electric charge in accordance with the pixel data;
• a first holding capacitance provided to each of the pixels to hold the pixel data;
• a display changing means which is controlled to be turned on/off by a display changing signal;
• a second holding capacitance which is supplied with the electric charge by the first holding capacitance via the display changing means;
• a buffer amplifying means for supplying the electric charge to the pixel capacitance in accordance with a voltage of the second holding capacitance, and
• wherein the buffer amplifying means is a bidirectional amplifying means for supplying positive and negative charges to the pixel capacitance in accordance with a voltage of the second holding capacitance.

A display apparatus comprising:

• a plurality of pixels, each of which is supplied with a pixel data;
• a pixel capacitance for accumulating an electric charge in accordance with the pixel data;
• a holding capacitance provided to each of the pixels to hold the pixel data;
• a buffer amplifying means for supplying the electric charge to the pixel capacitance in accordance with a voltage of the holding capacitance, wherein the buffer amplifying means is a bidirectional amplifying means for supplying positive and negative charges to pixel capacitance in accordance with a voltage of the holding capacitance;
• and
• a charging load means having a load connected in parallel with the pixel capacitance, wherein the pixel capacitance is supplied with the positive and negative electric charges by the bidirectional amplifying means, and the positive and negative electric charges pass through the charging load means via the load, and wherein the charging load means includes a P-channel transistor and an N-channel transistor, which are controlled by signals whose polarities are different from each other.

A display apparatus comprising:

• a plurality of pixels, each of which is supplied with a pixel data;
• a pixel capacitance for accumulating an electric charge in accordance with the pixel data;
• a holding capacitance provided to each of the pixels to hold the pixel data;
• a buffer amplifying means for supplying the electric charge to the pixel capacitance in accordance with a voltage of the holding capacitance;
• a responsive recovery switching means for repeatedly applying positive and negative voltages alternately to the pixel capacitance by a response recovery signal;
• wherein the buffer amplifying means is a bidirectional amplifying means for supplying positive and negative charges to pixel capacitance in accordance with a voltage of the holding capacitance;
• a charging load means having a load connected in parallel with the pixel capacitance, wherein the pixel capacitance is supplied with the positive and negative electric charges by the bidirectional amplifying means, and the positive and negative electric charges pass through the charging load means via the load;
• and
• a charging load control means for connecting the charging load means in parallel with the pixel capacitance during a charge supply period including at least a predetermined period from a start of supplying positive and negative electric charges based on a new pixel data from the bidirectional amplifying means to the pixel capacitance, and for cutting off the charging load means from the pixel capacitance during any period except for the charge supply period.