Driver circuit of a display device

Details Driver circuit of a display device Driver circuit of a display device

2007-03-06

2007-03-06

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S100000

Reexamination Certificate

active

10878162

ABSTRACT:
In a driver circuit of a display device handling a digital image signal, there is provided a driver circuit with a structure in which the timing of holding the image signal in a latch circuit is not influenced by a delay of a sampling pulse. A pre-charge TFT (102) is turned ON in a return line period and an input terminal of a holding portion (101) is set as Hi (VDD). When there is input to all the three signals, the sampling pulse, and a multiplex signal and the digital image signal which are input from the outside, TFTs (104to106) all turn ON, and the potential of the input terminal of the holding portion (101) becomes a Lo potential. Thus, holding of the digital image signal is performed. A sampling pulse width is wider than a pulse width of the two signals input from the outside, and the output periods of the two signals input from the outside are completely included in an output period of the sampling pulse. Thus, even if a slight delay is generated, there is no influence on the holding timing, and the holding timing may be easily determined.

REFERENCES:
patent: 5559526 (1996-09-01), Izawa
patent: 5953003 (1999-09-01), Kwon et al.
patent: 6111557 (2000-08-01), Koyama et al.
patent: 6278131 (2001-08-01), Yamazaki et al.
patent: 6344843 (2002-02-01), Koyama et al.
patent: 6580411 (2003-06-01), Kubota et al.
patent: 6593592 (2003-07-01), Yamazaki et al.
patent: 6597349 (2003-07-01), Koyama et al.
Y. Kubota et al.; “Late-News Paper: Low-Voltage Interface Technology for CGS TFT-LCD with Low Power Consumption”;SID 99 Digest; pp. 1116-1119; 1999.
R.L. Melcher et al.; “Invited Paper: High-Information-Content Projection Display Based on Reflective LC on Silicon Light Valves”;SID 98 Digest; pp. 25-28; 1998.

Affiliated with

Also associated with

Rating

Driver circuit of a display device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3800445