High quality active matrix-type display device

An active matrix-type display device, comprising:

• first and second insulating substrates arranged parallel to each other and having electro-optic material filled therebetween;
• a plurality of scan bus lines formed in parallel and spaced relationship on said first insulating substrate;
• a plurality of reference voltage supply bus lines formed on said first insulating substrate, said reference voltage supply lines comprising first and second kinds of lines to which respective, different voltages are applied;
• a plurality of data bus lines formed in parallel and spaced relationship on said second insulating substrate;
• a plurality of display electrodes formed on said first insulating substrate;
• a plurality of pairs of first switching elements and second switching elements, said first switching elements being turned ON when potentials of control gates of said first switching elements are positive and said second switching elements being turned ON when potentials of control gates of said second switching elements are negative;
• respective control gates of said pair of said first and second switching elements being connected to said scan bus lines;
• and
• each pair of said first and second switching elements being connected to a respectively corresponding one of said display electrodes and said first and second switching elements, of said pair connected to one display electrode, being respectively connected to said first and second kinds of reference voltage supply lines.