Display device including a drive circuit, including a level...

Details Display device including a drive circuit, including a level... Display device including a drive circuit, including a level...

2011-02-22

2011-02-22

Boddie, William L (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C377S064000

Reexamination Certificate

active

07893913

ABSTRACT:
Power consumption is reduced in a driving circuit of a display device capable of handling a low voltage amplitude input signal by employing level shifters that utilize a differential amplifier. The driving circuit is divided into a plurality of units and each unit is provided with a constant current source. In addition to a usual scanning circuit, there is provided a sub-scanning circuit for controlling ON/OFF of the constant current source arranged in each unit. The sub-scanning circuit turns ON only the constant current sources in the unit that is being scanned. A current thus can be supplied efficiently.

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