Method and apparatus for producing perception of high quality gr

Details Method and apparatus for producing perception of high quality gr Method and apparatus for producing perception of high quality gr

1989-04-10

1993-02-09

Brier, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

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

340703, 340784, G09G 320

Patent

active

051856026

ABSTRACT:
The perception of grayscale shading on a digitally commanded display is produced by commanding pixels of the display with brightness-setting signals of differing average duty cycles. Brightness-setting signals having one brightness level associated with them are phase shifted in relation to time and distributed to spaced apart pixel locations at which the one brightness level is to be produced. The energization of spatially adjacent pixels is scattered in time and pixels which are energized at the same time are selected to be spatially scattered so as to avoid the perception of visual disturbances such as flickering and surface streaming.

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