Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2001-10-05
2010-02-02
Kumar, Srilakshmi K (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
07656380
ABSTRACT:
This invention provides a driving circuit for a display device, for accomplishing low power consumption by use of a level shifter capable of reliably converting signals having low voltage amplitude. A source signal line driving circuit is divided into a plurality of units. Pulses outputted from a shift register, etc, are used to execute ON/OFF control of the operation of a current supply source to the level shifter of each divided unit. The supply of the current to the level shifter is suspended in the stage not containing the circuit that outputs the pulses, but is made to only the unit including the shift register of the operating stage. In consequence, low power consumption can be achieved.
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Atsumi Tomoaki
Koyama Jun
Miyake Hiroyuki
Kumar Srilakshmi K
Robinson Eric J.
Robinson Intellectual Property Law Office P.C.
Semiconductor Energy Laboratory Co,. Ltd.
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