Electro-optical device and method of driving the same

A method of driving an electro-optical device comprising the steps of:

• converting an analog image signal into digital binary signals of k digits;
• outputting data D.sub.k-2j+1 in accordance with the digital binary signal S.sub.k-2j+1 on an active matrix electro-optical device for a period of 2.sup.k-2j+1 T.sub.1 with the digital binary signal S.sub.2j-1 stored in a first in first out memory device during duration of said data D.sub.k-2j+1 on said active matrix electro-optical device where T.sub.1 is a constant period and k and j are integers and j<k/2;
• transferring the digital binary signal S.sub.k-2j+2 to said first in first out memory device during said outputting step;
• outputting data D.sub.2j-1 in accordance with the digital binary signal S.sub.2j-1 on said active matrix electro-optical device for a period of 2.sup.2j -1 T.sub.1 after said data D.sub.k-2j+1 outputting step;
• and
• outputting data D.sub.k-2j+2 in accordance with the digital binary signal S.sub.k-2j+2 on said active matrix electro-optical device for a period of 2.sup.k-2j+2 T.sub.1 after said data D.sub.2j-1 out putting step.

A method of driving an electro-optical device comprising the steps of:

• converting an analog image signal into digital binary signals of k digits;
• outputting data D.sub.k-2j in accordance with the digital binary signal S.sub.k-2j on an active matrix electro-optical device for a period of 2.sup.k-2j T.sub.1 with the digital binary signal S.sub.2j stored in a first in first out memory device during duration of said data D.sub.k-2j on said active matrix electro-optical device where T.sub.1 is a constant period and k and j are integers and j<k/2;
• transferring the digital binary signal S.sub.k-2j+1 to said first in first out memory device during said outputting step;
• outputting data D.sub.2j in accordance with the digital binary signal S.sub.2j on said active matrix electro-optical device for a period of 2.sup.2j T.sub.1 after said data D.sub.k-2j outputting step;
• and
• outputting data D.sub.k-2j+1 in accordance with the digital binary signal S.sub.k-2j+1 on said active matrix electro-optical device for a period of 2.sup.k-2j+1 T.sub.1 after said data D.sub.2j outputting step.

A method of driving an electro-optical device comprising the steps of:

• converting an analog image signal into digital binary signals of k digits;
• storing the digital binary signal of each of said k digits into corresponding one of memory areas;
• and
• sending the digital binary signals from said memory areas to a shift driver operatively connected with an active matrix electro-optical device so that pulses are applied to a signal line of the active matrix electro-optical device at intervals wherein said intervals are T.sub.1 between the i-th pulse and the (i+1)-th pulse, 2.sup.N T.sub.1 between the (i+1)-th pulse and the (i+2)-th pulse, 2T.sub.1 between the (i+2)-th pulse and the (i+3)-th pulse, and 2.sup.N-1 T.sub.1 between the (i+3)-th pulse and the (i+4)-th pulse where N is a natural number, i is a natural number and T.sub.1 is a constant period.