Lighted dot matrix display

Details Lighted dot matrix display Lighted dot matrix display

1979-09-04

1981-09-15

Bauer, Edward S.

350345, G02F 1133

Patent

active

042893836

ABSTRACT:
A dot matrix display of the liquid crystal type operative in either transmissive or reflective modes includes means to illuminate the back of the display, and means for electrically reversing the image on the display from dark on a light background to light (transparent) on dark background for transmissive viewing when the effective light intensity of the illuminating means is greater than the effective ambient light intensity on the front of the display.

REFERENCES:
patent: 4104627 (1978-08-01), Thuler

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