Learn Spanish (Latin America): ¿Puedes leer lo borroso en la pantalla? - Can you read the blurry part on the screen?

Lo is the neuter article. When you combine it with a masculine singular adjective like borroso, it creates an abstract noun meaning "the blurry part" or "that which is blurry." It is used when you are not referring back to a specific masculine or feminine noun, but rather to the quality of blurriness itself.

Could I say la parte borrosa instead of lo borroso?

Yes, la parte borrosa is perfectly correct and means exactly the same thing. However, using lo plus an adjective is a very common, concise way for native speakers to express abstract ideas without needing placeholder words like parte or cosa.

Can the adjective after lo ever become plural, like lo borrosos?

No, when you use lo to turn an adjective into an abstract concept, the adjective is locked into its masculine singular form. Even if there are multiple blurry spots on the screen, you still say lo borroso to refer to the blurry areas as a collective abstract concept.

Why does the sentence use en la pantalla instead of sobre la pantalla for "on the screen"?