TVs and video projectors offer many settings that help you get the best picture quality based on the capabilities of the TV or your preference. These settings include sharpness settings and resolution settings, which are not the same thing. Keep reading to learn more about TV sharpness and resolution and how they affect TV picture quality.
Your TV's sharpness setting should be lower, not higher
The common perception of sharpness (as used in video applications) is that it is directly related to resolution and that sharpness increases the resolution of an image. However, this is not the case.
Resolution refers to a fixed number of pixels (720p, 1080p, 4K, and 8K). The resolution of a source connected to a TV may be lower, but the TV (or projector) scales the image up so that the image is displayed with the number of pixels allocated to it on the TV screen.
On the other hand, sharpness is a control that increases edge contrast, making objects clearer. The image resolution remains the same. Although the sharpness setting makes the image appear to have more details, in reality it does not.