| 摘要 |
Control of pixel configuration, as a function of pixel sequence as well as instantaneous pixel value, permits the use in displays of complex multi-bit pixel configurations with a minimum of optical aberrations. The present pixel configuration is a function of the bit value (low order bit) of the neighbor pixel (previous pixel) as well as of the bit value of the present pixel. Each pixel is controlled by its own two-bit midtone selection value and, in addition, is controlled to the bit value of the low order bit of the previous pixel, according to a truth table. The control circuitry includes a one-pixel interval delay latch which provides the bit value data for the low order bit of the prevous pixel as input to the pixel configurating decoder so that the pixel configurating decoder selects a pixel configuration as a composite function of previous pixel bit value and present pixel bit value. Decoding of pixels according to this truth table tends to expand the black areas and white areas and minimizes the aberrational patterning of the transitional gray areas.
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