A laptop is great for studying at the library or at cafes. But at home, it's probably better for your eyes to use a larger display. If you're constrained by space (or budget), the Asus VA24EHF Eye Care Gaming Monitor (S$139) is a good, affordable option.

The Asus VA24EHF has good specs for an entry-level monitor. The Full-HD resolution is just right for its 23.8-inch size. It's an IPS display, so viewing angles are very good.