Thermal printhead with drivers

Details Thermal printhead with drivers Thermal printhead with drivers

1974-12-16

1976-09-21

Albritton, C. L.

Electric heating

Heating devices

Combined with diverse-type art device

219543, 346 76R, 357 56, H05B 100

Patent

active

039820939

ABSTRACT:
An integrated semiconductor circuit has a portion thereof divided into a plurality of air isolated mesas which constitute a heater element array. A heater transistor formed within each mesa is selectively turned on in response to logic signals to heat one mesa of the array. By selectively heating the correct mesas, an area of the mesa array corresponding to a desired character is heated. Thermally sensitive material on which a dynamic display is formed or on which a permanent display is printed is in thermal contact with the material of the heater element array. Also formed within each mesa is its corresponding driver transistor.

REFERENCES:
patent: 3700852 (1972-10-01), Ruggiero

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