Level shifter for a liquid crystal display

Details Level shifter for a liquid crystal display Level shifter for a liquid crystal display

1997-12-15

2000-04-11

Santamauro, Jon

Electronic digital logic circuitry

Interface

Supply voltage level shifting

326 86, H03K 190185

Patent

active

060492287

ABSTRACT:
This invention is related to a level shifter in an LCD using dual power voltages. A gate voltage generator generates a gate voltage through a charge pumping not to turn on both a PMOS transistor and an NMOS transistor at the same time, and the PMOS transistor is switched by the gate voltage. In this level shifter, a current to generate an output signal flows instantly only the moment the PMOS transistor and the NMOS transistor are switched, and an unwanted current path is therefore not formed. Therefore, a voltage level can be shifted without the unnecessary power consumption in the level shifter.

REFERENCES:
patent: 4045691 (1977-08-01), Asano
patent: 4064405 (1977-12-01), Cricchi et al.
patent: 4574273 (1986-03-01), Atsumi et al.
patent: 4631426 (1986-12-01), Nelson et al.
patent: 5650742 (1997-07-01), Hirano

Affiliated with

Also associated with

Rating

Level shifter for a liquid crystal display does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Level shifter for a liquid crystal display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Level shifter for a liquid crystal display will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1179613