Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1991-10-21
1993-08-17
Oberley, Alvin E.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340784, 340766, 359 54, G09G 336
Patent
active
052373142
ABSTRACT:
In an addressable matrix device, for example an active matrix liquid crystal display device comprising a panel (10) having a row and column array of addressable picture elements (12), in which the elements are addressed via sets of row and column address conductors (14,16) by row and column drive circuits (24,26) providing sequential outputs, at least one of the circuits (24,26) consists of a sequence generator (28,29) comprising an electro-optic switching arrangement having light sensitive means including light sensitive elements (42), e.g. photodiodes, integrated on the panel and controlling the outputs of individual output stages (38) and light emitting means (35) including a plurality of light emitting elements (36) cooperating with the light sensitive elements, the light emitting elements being selectively operable to produce a sequence of outputs from the output stages, for example in order to scan the row address conductors. The electro-optic switching arrangement requires comparatively few external connections to the panel and is of simple form so that high yields are obtained.
REFERENCES:
patent: 4771338 (1988-09-01), Fujiwara
patent: 4952031 (1990-08-01), Tsunoda et al.
C. D. Lustig, "A New Method for Addressing Flat-Panel Displays", IEEE Transactions on Electron Devices, vol. ED-29, No. 8, Aug. 1982, pp. 1334-1336.
A. Mimura et al., "High Performance Low-Temperature Poly-Si n-Channel TFT's for LCD", IEEE Transactions on Electron Devices, vol. 36, No. 2, Feb. 1989, pp. 351-359.
Farnandez Kara
Kraus Robert J.
Oberley Alvin E.
U.S. Philips Corporation
LandOfFree
Addressing a matrix device using electro-optical switching does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Addressing a matrix device using electro-optical switching, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Addressing a matrix device using electro-optical switching will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2247222