Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-02-07
2006-02-07
Nguyen, Matthew V. (Department: 2838)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S099000
Reexamination Certificate
active
06995741
ABSTRACT:
A liquid crystal display panel is driven by scan line inversion driving. Here, a virtual scanning period is provided between an Mth scanning period and a first scanning period which constitutes a frame next to the Mth scanning period. In the virtual period, the display panel is driven by setting a voltage level of a counter electrode VCOM to a voltage level different from VCOM during the Mth and the first scanning periods. During the period T1in which VCOM becomes VC1,data line is driven using a P-type operational amplifier OP1having a P-type driving transistor, while during the period T2in which VCOM becomes VC2,the data line is driven using an N-type operational amplifier OP2having an N-type driving transistor. The data line is set to the high impedance state when the periods T1, T2are changed over and the voltage level of the data line is preliminarily changed to the VDD side or the VSS side before driving by positively utilizing the parasitic capacitance between the counter electrode and the data line.
REFERENCES:
patent: 5412397 (1995-05-01), Kanatani et al.
patent: 5627457 (1997-05-01), Ishiyama et al.
patent: 6154189 (2000-11-01), Tamura et al.
patent: 6292163 (2001-09-01), Nam et al.
patent: 6489941 (2002-12-01), Inage et al.
patent: 6906692 (2005-06-01), Ishiyama
patent: 2 188 471 (1987-09-01), None
patent: 03-062094 (1991-03-01), None
patent: 05-210088 (1993-08-01), None
patent: A 7-98577 (1995-04-01), None
patent: 07-281639 (1995-10-01), None
patent: 07-281640 (1995-10-01), None
patent: 07-281641 (1995-10-01), None
patent: 09-230829 (1997-09-01), None
patent: 2001-4974 (2001-01-01), None
patent: 2001-343942 (2001-12-01), None
U.S. patent application Ser. No. 10/155,972, Ishiyama, filed May 29, 2002.
U.S. patent application Ser. No. 10/156,019, Ishiyama, filed May 29, 2002.
LandOfFree
Driving circuit and driving method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Driving circuit and driving method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driving circuit and driving method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3700641