Android: Image Pixel Question

I have a simple question here regarding image.

I have this image 300x240pixel on my laptop screen, however when i put it into the android phone, it becomes 开发者_开发百科smaller. why is this so?

I did some research before posting here, apparently this got to do with dpi? Is it possible to to have the same 300x240 size on my laptop screen to be displayed on the android phone without being pixelated?

Thank You

Yes, but you will need to use the different dpi sections in res/drawable folders. Reference: http://developer.android.com/guide/practices/screens_support.html