Maybe not the right place for this but I was looking at this quote and wondering if it’s a mistranslation:
“ *It’s a technique where by slightly changing the color of surrounding pixels, to the human eye it looks like the pixels move by around 0.5 pixels.* ” explains Kazuhiro Tanaka, graphic designer on Metal Slug (1996). His colleague Yasuyuki Oda adds that “ *Back in the old days, we’d say* [to our artists] *“add 0.5 of a pixel”, and have them draw in the pixels by taking scanlines into account. But with the modern Full HD monitor, the pixels comes out too clearly and too perfectly that you can’t have that same taste.* “
To me it sounds like half-dot technique has more to do with the crt screen’s phosphor structure than the scanlines. By choosing certain colors you can activate “half” (really it’s either 2/3rd or 1/3rd) of a phosphor triad, allowing you to draw “half pixels.” This allows for even finer details. Basically it sounds like “half-dot technique” is actually describing some kind of subpixel rendering (like ClearType).