Can I fix my monitor?
From the marking beside it (ZD)  and its appearance, it would be a zener diode.

Zener diodes can be used as (simple) voltage regulators.  

They can also be used to protect signal lines from over voltage.  Given so many of them in a row, I'd expect this to be the usage in your case.

Zener diodes are often color coded.  I had a chart that showed values for zeners with a single color band, but I can't find it right now.

This datasheet suggests it may be a Vishay BZV55 zener. In that case, the blue band does not represent the breakdown voltage. 

Since you have a bunch with the same color band, you could remove one of the others from the board and measure the breakdown voltage when reverse biased.

Since replacing the broken diode probably won't fix your monitor, I won't go into how you measure the breakdown voltage on a zener.

Your real problem is whatever killed the zener diode.  Something caused it to conduct, and pushed enough current through it to cause it to fail.  That's the problem you have to find and fix first.