Output control circuit, driving circuit, electro-optic apparatus, and electronic instrument
AssigneeSeiko Epson Corporation
InventorShin Fujita
Life of this patent
Estimating the term…
Abstract
A data line driving circuit 200 has a shift resistor unit 210 in which respective shift resistor unit circuits Ua1 to Uan+2 are in cascade connection with each other, and an output signal control unit 220 comprising respective operational unit circuits Ub1 to Ubn+1. A NAND circuit 514 controls an enabling period of a negative sampling signal based on an output signal from a NAND circuit 511 in an subsequent-stage operational unit circuit.
Claims14
An output control circuit, which is used together with transfer means in which a number of unit circuits that shift a starting pulse sequentially in synchronization with a clock signal are in cascade connection with each other, and generates a set of a positive logic output signal and a negative logic output signal which is an inversion of the positive logic output signal based on an output signal from each of the unit circuits, the output control circuit having,
- a first logic operation unit which, based on an output signal from a unit circuit and an output signal from a subsequent-stage unit circuit, generates an output signal that is enabled in a period while the output signals from the two unit circuits are enabled at the same time, and,
- a second logic operation unit which generates the positive logic output signal and the negative logic output signal based on the output signal from the first logic operation unit, and controls an enabling period of the positive logic output signal or the negative logic output signal based on the output signal from a first logic operation unit in a subsequent-stage output control circuit.
Dependencies are inferred from the claim text.