Are those dead pixels? "Dead Pixel Detect and Fix" apk did not work with them

I have a new LG L9 for about 2-3 days now (but it came to me without foil on the screen).

Today I've noticed that about 1-3 pixels near the middle of the screen are quite black. And they do not react to color changes like other pixels of the screens - whenever they should be black, red, white - they just stay the same color (they are easy to spot on white background and hard to detect on any other color).

When I change the viewing angle, they disappear gradually. When I have my phone in front of my eyes, I see them good. But when I look from the very low angle (screen is in the corner of my eyes, I look from far left/right side) - they are not visible on the screen. Is that typical for dead pixels? Or they are not dead pixels at all?

Is it possible to fix them?

I've downloaded and run the Dead Pixel Detect and Fix application, but it didn't fix them.

I use Android 4.