Active matrix liquid crystal display having a peripheral driving

Details Active matrix liquid crystal display having a peripheral driving Active matrix liquid crystal display having a peripheral driving

1992-11-13

1994-06-21

Hille, Rolf

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Having insulated electrode

257 59, 257 72, 257408, 257351, H01L 2701, H01L 2904, H01L 3036, H01L 2976

Patent

active

053230426

ABSTRACT:
In the case of an LDD-structure thin film transistor, an on-current becomes large as impurity concentration of low level impurity source and drain regions is increased. Then, when the impurity concentration is increased to a first impurity concentration, the on-current reaches to a substantially maximum point. On the other hand, a cut-off current I.sub.off becomes substantially minimum when the impurity concentration is decreased to a second impurity concentration. The cut-off current is gradually increased even if the impurity concentration becomes higher or lower than the second impurity concentration. Therefore, impurity concentration of low level impurity source and drain regions of a thin film transistor for a peripheral circuit is set to a first impurity concentration, and that of low concentration impurity source and drain regions of a thin film transistor for a matrix circuit is set to a second impurity concentration.

REFERENCES:
patent: 3840695 (1974-10-01), Fischer
patent: 4663645 (1987-05-01), Komori et al.
Patent Abstracts of Japan, vol. 7, No. 258 (E-211)(1403) Nov. 17, 1983 & JP-A-58 142 566 (Suwa Seikosha K.K.) Aug. 24, 1983.

Affiliated with

Also associated with

Rating

Active matrix liquid crystal display having a peripheral driving does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2222585