Matrix type display apparatus and a method for driving the same

A matrix type display apparatus, comprising:

• pixel electrodes arranged in a matrix;
• data signal lines and scanning signal lines for driving the pixel electrodes;
• and
• a data signal line driving circuit including:
• sampling capacitors for keeping sampled data obtained by sequentially sampling image data over one horizontal scanning period;
• holding capacitors for holding the sampled data transmitted during one horizontal scanning period and then outputting the sampled data to data signal lines as a data signal;
• and
• precharging means for precharging the corresponding holding capacitors by applying a predetermined voltage to the holding capacitors and the data signal lines before the sampled data is transmitted to the holding capacitors.

A matrix type display apparatus comprising:

• pixel electrodes arranged in a matrix;
• data signal lines and scanning signal lines for driving the pixel electrodes;
• and
• a data signal line driving circuit including
• sampling capacitors for keeping sampled data obtained by sequentially sampling image data over one horizontal scanning period and then outputting the sampled data to data signal lines as a data signal, and
• precharging means for precharging the corresponding data signal lines by applying a predetermined voltage to the data signal lines before the sampled data is output to the data signal lines,
• the predetermined voltage for a corresponding data signal line having a polarity that is the same as a polarity of the sampled data output to the corresponding data signal line, even if the polarity of the sampled data is inverted.

A matrix type display apparatus, comprising:

• pixel electrodes arranged in a matrix;
• data signal lines and scanning signal lines for driving the pixel electrodes;
• holding capacitors for holding data and for outputting the data to corresponding data signal lines;
• pixel switches each turned on by a signal sent through the corresponding scanning signal line for supplying a current from the corresponding data signal line to the corresponding pixel electrode;
• and
• precharging means for precharging the corresponding pixel electrodes by applying a predetermined voltage to the corresponding pixel electrodes before the corresponding pixel switch is turned on by the signal sent through the corresponding scanning signal lines,
• the predetermined voltage for a corresponding pixel electrode having a polarity that is the same as a polarity of the data output to the corresponding data signal line of the corresponding pixel electrode, even if the polarity of the data is inverted.

A matrix type display apparatus, comprising:

• pixel electrodes arranged in a matrix;
• data signal lines and scanning signal lines for driving the pixel electrodes;
• and
• a data signal line driving circuit including
• sampling switches for sequentially sampling image data over one horizontal scanning period, each of the sampling switches being connected to the corresponding data signal line for outputting sampled data to the data signal line as a data signal,
• sampling capacitors for keeping sampled data, and
• precharge sampling means for effecting precharge sampling by turning on the sampling switches for applying a predetermined voltage to the data signal lines after the completion of the last horizontal scanning period and before the start of the proper sampling period for the respective sampling switches,
• the predetermined voltage for a corresponding data signal line having a polarity that is the same as a polarity of the sampled data output to the corresponding data signal line, even if the polarity of the sampled data is inverted.

A matrix type display apparatus, comprising:

• pixel electrodes arranged in a matrix;
• data signal lines and scanning signal lines for driving the pixel electrodes;
• and
• a data signal line driving circuit including
• sampling switches for sequentially sampling image data over one horizontal scanning period, each of the sampling switches being connected to a sampling capacitor for outputting sampled data obtained by the sampling to the sampling capacitor as a data signal, the sampling capacitor holding the sampled data, and
• precharge sampling means for effecting precharge sampling by turning on the sampling switches for applying a predetermined voltage to the sampling capacitors after the completion of the last horizontal scanning period and before the start of the proper sampling period for the respective sampling switches,
• the predetermined voltage applied to a corresponding sampling capacitor having a polarity that is the same as a polarity of the sampled data output to the corresponding sampling capacitor, even if the polarity of the sampled data is inverted.

A driving method for driving data signal lines of a matrix type display apparatus including pixel electrodes arranged in a matrix and data and scanning signal lines connected to the pixel electrodes, the driving method comprising the steps of:

• (a) sampling image data over one horizontal scanning period and storing the sampled image data in a plurality sampling capacitors;
• (b) precharging a plurality of holding capacitors with a predetermined voltage;
• (c) holding the sampled data in the plurality of holding capacitors subsequent to said step (b) of precharging, the sampled data being transferred from corresponding sampling capacitors upon termination of the one horizontal scanning period;
• and
• (d) outputting the sampled data from the holding capacitors to the data signal lines.

A driving method for driving data signal lines of a matrix type display apparatus including pixel electrodes arranged in a matrix and data and scanning signal lines connected to the pixel electrodes, the driving method comprising the steps of:

• (a) sampling image data over one horizontal scanning period and storing the sampled image data in a plurality of sampling capacitors;
• (b) precharging a plurality of holding capacitors with a predetermined voltage;
• (c) holding the sampled data in the plurality of holding capacitors subsequent to said step (b) of precharging, the sampled data being transferred from corresponding sampling capacitors during the one horizontal scanning period;
• and
• (d) outputting the sampled data from the holding capacitors to the data signal lines.

A driving method for driving data signal lines of a matrix type display apparatus including pixel electrodes arranged in a matrix and data and scanning signal lines connected to the pixel electrodes, the driving method comprising the steps of:

• (a) sampling image data over one horizontal scanning period and storing the sampled image data in a plurality of sampling capacitors corresponding to each data signal line;
• (b) precharging the plurality of data signal lines with a predetermined voltage;
• and
• (c) outputting the sampled data from the sampling capacitors to the data signal lines, subsequent to said step (b) of precharging,
• the predetermined voltage of a corresponding data signal line of said step (b) having a polarity that is the same as a polarity of the image data applied to the corresponding data signal line, even if the plurality of the image data is inverted.

A driving method for driving data signal lines of a matrix type display apparatus including pixel electrodes arranged in a matrix and data and scanning signal lines connected to the pixel electrodes, the drive method comprising the steps of:

• (a) holding image data in a plurality of holding capacitors;
• (b) precharging the plurality of pixel electrodes with a predetermined voltage;
• and
• (c) turning on each of a plurality of pixel switches subsequent to said step (b) of precharging to enable supply of current from a corresponding data signal line to each corresponding pixel electrode, one pixel switch corresponding to each pixel electrode,
• the predetermined voltage of a corresponding pixel electrode of said step (b) having a polarity that is the same as a polarity of the image data applied to the corresponding data signal line, even if the polarity of the image data is inverted.