A technician is comparing a 14-inch and a 15.6-inch laptop panel. Both panels are set to the native resolution of 1920 × 1080 at 60 Hz, yet text appears noticeably crisper on the smaller screen. Which built-in display attribute best explains why the smaller panel looks sharper?
Because both screens have the same number of pixels (1920 × 1080) but different physical sizes, the smaller 14-inch panel packs those pixels into a smaller area. This increases its pixel density, measured in pixels per inch (PPI), so each pixel is physically smaller and individual pixels are harder to distinguish. A wider color gamut affects color accuracy, not sharpness. A faster refresh rate influences motion smoothness, and a higher screen resolution would require more pixels, which is not the case here. Therefore, greater pixel density is the attribute that accounts for the sharper appearance.
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What is pixel density (PPI) and why does it matter?