Grayscale on 1-bit LCDs (2022)
My father Bryce Bayer studied this question fifty years ago at Eastman Kodak; his approach is known as ordered dithering:<p><a href="https://en.wikipedia.org/wiki/Ordered_dithering" rel="nofollow">https://en.wikipedia.org/wiki/Ordered_dithering</a><p>One is effectively posterizing a grayscale image, and his primary goal was to reduce artifacts drawing unwanted attention to the borders between poster levels.<p>With improvements in hardware other approaches to dithering took over. The last time I saw my father's pattern was on a DEC box logo. He moved to the color group at Kodak, and designed the "Bayer filter" used in digital cameras.