Analog buffer circuit, display device and portable terminal

Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C345S204000

Reexamination Certificate

active

10485294

ABSTRACT:
An analog buffer circuit which has small input and output offsets and reduced power consumption even if it is formed on an insulating substrate by TFTs, a display device which uses the analog buffer circuit as a peripheral driving circuit for a display unit, and a portable terminal in which the display device is provided as a screen display unit are provided. By performing offset detection on a source follower in such a manner that, for example, two capacitors Cn1and Cn2are connected to the gate of a NMOS transistor Qn11as a source follower, and conduction
onconduction control of switches Sn1to Sn5are performed, if needed, and by sequentially canceling the detected offsets, a final offset voltage is sufficiently reduced and high precision offset cancellation is realized.

REFERENCES:
patent: 5739816 (1998-04-01), Kobayashi et al.
patent: 6313819 (2001-11-01), Maekawa et al.
patent: 6738037 (2004-05-01), Akimoto
patent: 6784865 (2004-08-01), Akimoto et al.
patent: 6791613 (2004-09-01), Shinohara et al.
patent: 2002/0033786 (2002-03-01), Akimoto et al.
patent: 06-252724 (1994-09-01), None
patent: 6-252724 (1994-09-01), None
patent: 09-330060 (1997-12-01), None
patent: 9-330060 (1997-12-01), None
patent: 11-073165 (1999-03-01), None
patent: 11-73165 (1999-03-01), None
patent: 2001-125546 (2001-05-01), None
patent: 2002-014644 (2002-01-01), None
patent: 2002-041001 (2002-02-01), None
patent: 2002-057537 (2002-02-01), None
patent: 2002-57537 (2002-02-01), None
patent: 2002-108296 (2002-04-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Analog buffer circuit, display device and portable terminal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Analog buffer circuit, display device and portable terminal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analog buffer circuit, display device and portable terminal will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3941489

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.