Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1982-07-12
1985-12-17
Curtis, Marshall M.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340781, 34082581, 358241, G09G 330
Patent
active
045595356
ABSTRACT:
A plurality of memory sections is provided each storing binary data to be employed for refreshing picture elements of a thin-film EL matrix display panel on successive frame time periods constituting an integration time period. The number of frame time periods in an integration time period corresponds to the number of different shades to be displayed on the panel. The binary data stored in each of the memory sections differs. Thus, when the binary data in the memory sections are read out on successive frame time periods, some of the picture elements on the panel are refreshed more than others during the integration time period. Accordingly, the eye of the viewer receives more light from some picture elements than others during each integration time period which results in the relative brightness levels and, therefore, the shades of the picture elements to vary.
In a modified embodiment of the present invention each of the memory sections is binarily weighted and, during an integration time period, each memory section is read out a number of frame time periods corresponding to its binary weight in order to obtain the different brightness levels or shades on the panel.
REFERENCES:
patent: 3829613 (1974-08-01), Melchior
patent: 3906290 (1975-09-01), Kurahashi et al.
patent: 4210934 (1980-07-01), Kutazagi
patent: 4438453 (1984-03-01), Alston
Bell Robert J.
Essinger Walter F.
Martorano Joseph A.
Watkins Randy W.
Curtis Marshall M.
Kovalick Vincent P.
Matlago John T.
Sigmatron Nova, Inc.
LandOfFree
System for displaying information with multiple shades of a colo does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for displaying information with multiple shades of a colo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for displaying information with multiple shades of a colo will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2177001