What do you mean by "clearer?" Is one of the screens too dark/lacking in contrast? Is the resolution incorrect? Is the picture stretched in some way?
You should start by adjusting the picture settings on your monitor. From the factory, they are usually set to max brightness so they'll look better on store shelves. The contrast is usually way off as well. Leave the color settings alone unless you know what you're doing though.
If it's something else, we'll need more information. What monitor, What TV, How are they hooked up, etc.