Electrooptical display apparatus and driver

A display apparatus comprising:

• a liquid crystal display panel comprising:
• an image information displaying section having N scanning electrodes arranged side by side and M information electrodes crossing said N scanning electrodes, and
• an image information non-displaying section having additional electrodes arranged at an outside of and along said N scanning electrodes;
• and
• a driver for supplying a scanning signal to a selected scanning electrode, for supplying a predetermined voltage to a non-selected scanning electrode, for supplying an information signal to said M information electrodes synchronously with the scanning signal, for supplying a non-display signal to said additional electrodes during a predetermined period, and for supplying a predetermined voltage to said additional electrodes during a period other than the predetermined period,
• wherein said additional electrodes are supplied with the non-display section driving signal, to set said non-display section at a predetermined optical state, during the period of supplying the scanning signal to any of said N scanning electrodes.

A driver for a display panel comprising M information electrodes and N scanning electrodes crossing the information electrodes and arranged side by side to constitute an image information display section and additional electrodes, arranged outside of and along the N scanning electrodes, to constitute a non-display section, said driver comprising:

• a first driver for supplying a scanning signal to a selected scanning electrode, and for supplying predetermined voltage to a non-selected scanning electrode;
• and
• a second driver for supplying an information signal to the M information electrodes synchronously with the scanning signal,
• wherein said first driver supplies a non-display section drive signal, during a predetermined time period, to the additional electrodes, and supplies a predetermined voltage to the additional electrodes during a period other than the predetermined time period, and the additional electrodes are supplied with the non-display section drive signal, to set the non-display section at a predetermined optical state, during a period of supplying the scanning signal to any of the N scanning electrodes.

A driver control apparatus for display panel comprising M information electrodes and N scanning electrodes arranged side by side and crossing said M information electrodes to constitute an image information display section, and additional electrodes arranged outside of and along the N scanning electrodes to constitute an image information non-display section, said driver control apparatus comprising:

• a first driver for supplying a scanning signal to selected scanning electrodes and for supplying predetermined voltage to non-selected scanning electrode;
• and
• a second driver for supplying an information signal to the information electrodes synchronously with the scanning signal,
• wherein said first driver supplies, during a predetermined period, a non-display driving signal to the additional electrodes and supplies, during a period other than the predetermined period, a predetermined voltage to the additional electrodes, and wherein said driver control apparatus supplies the non-display section drive signal to additional electrodes, to control said first driver, so that the non-display section is set at a predetermined optical state, during the period of supplying the scanning signal to any of N scanning electrodes.