Display apparatus

Details Display apparatus Display apparatus

1977-11-10

1980-12-02

Shaw, Gareth D.

Communications: electrical

Land vehicle alarms or indicators

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

340744, 340791, 340793, G06F 314

Patent

active

042374570

ABSTRACT:
A method of displaying a symbol on a display area which is effectively a regular array of display elements wherein the symbol is defined by a multiplicity of equally spaced points on the display area and each point is represented by a group of display elements whose relative brightnesses are set so as to create a subjective impression of that point at its required position. The technique avoids the so-called "staircase effect" on symbols. Apparatus for generating brightness control signals for carrying out the method is also disclosed.

REFERENCES:
patent: 3812491 (1974-05-01), Barraclough
patent: 3878536 (1975-04-01), Gilliam
patent: 3921164 (1975-11-01), Anderson
patent: 4014011 (1977-03-01), Ashkin

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