Which type of font is known to appear blurry on a digital display?

The type of font that is known to appear blurry on a digital display is typically a serif font. Serif fonts have decorative strokes or "serifs" at the ends of their letters, which can create a more intricate and visually complex appearance. On lower resolution screens, these small details may not render clearly, leading to a blurry or pixelated look. The fine characteristics of the serifs can be lost due to limitations in screen resolution, making the text harder to read compared to cleaner font styles.

In contrast, sans-serif fonts, which lack these decorative elements, are often clearer and more legible on digital displays because of their straightforward and simple lines. Monospace fonts, which allocate the same amount of horizontal space for each character, generally maintain clarity as well. Slab serif fonts, while similar to serif fonts in having embellishments, tend to have thicker, block-like serifs which can sometimes be better rendered on screens compared to traditional serif fonts, depending on the context.