Patent ID: 7355575

Claim:
A matrix panel display apparatus comprising: plural signal lines and plural scanning lines intersecting each other and, near each intersection point, a picture element including a picture element electrode, a counter electrode, a display medium disposed between said picture element electrode and said counter electrode, and a transistor for applying image signals from said signal line to said picture element electrode, said transistor being controlled in response to scanning signals received on a scanning line; a plurality of storage capacitances, each connected to a respective one of said picture elements; picture signal generating means in a signal circuit for dividing plural picture elements selected at the same time into two groups and for applying a first picture signal group to a first group of picture elements and a second picture signal group, having a polarity reverse to the first picture signal group, to a second group of picture elements; bias signal generating means for applying a first bias signal group, having a polarity reverse to said first picture signal group, to said first group of picture elements through storage capacitances in said first group of picture elements and for applying a second bias signal group, having the polarity reverse to said second picture signal group, to said second group of picture elements through storage capacitances in said second group of picture elements, during a selection period of said first and second groups of picture elements; wherein a control terminal of each transistor is connected to a scanning line, a main terminal thereof to a signal line, and the other main terminal thereof to one of the terminals of said picture element electrode and said storage capacitance; and wherein two groups of said bias signals, having a polarity reverse to each of said two image signal groups, are applied to said storage capacitances in each of said picture element groups, respectively; and wherein said bias signal generating circuit includes a scanning signal generating circuit for applying a scanning voltage to said picture element through said scanning lines.