Display device with panels compared to form correction signals

Details Display device with panels compared to form correction signals Display device with panels compared to form correction signals

1986-09-24

1989-04-25

Caldwell, Sr., John W.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340763, 340765, 340793, 340812, G09G 300

Patent

active

048252018

ABSTRACT:
A display device having a number of display panels arranged in a plane to constitute a large picture image screen includes a correction-value determining means positioned in front of and apart from the display panels to observe the optical condition of the display panels so as to determine a part to be corrected in the display panels and a value to be corrected for the part, a correction signal generating means for generating a correction signal on the basis of the corrected value which is provided from the correction value determining means, correction circuits for the display panels, and a recorrection signal generating means which receives the correction signal from the correction signal generating means and transmits a recorrection signal to the correction circuit for one or more number of the display panels to be corrected.

REFERENCES:
patent: 3471740 (1969-10-01), Dreyfoos et al.
patent: 3573789 (1971-04-01), Sharp et al.
patent: 3647958 (1987-09-01), Sobel
patent: 3830970 (1974-08-01), Murley et al
patent: 3986186 (1976-10-01), Cochran
patent: 4298866 (1981-11-01), Modemaekers
patent: 4379292 (1983-04-01), Minato et al.
patent: 4415921 (1983-11-01), Mulvanny et al.
patent: 4523232 (1985-11-01), Kameda et al.
patent: 4578672 (1986-03-01), Oota et al.

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