Laptop screens

I've been the owner of a nice HP laptop for about a year now and I'm pretty satisfied with it. But since the summer is here again I'd like to go outside with my laptop.
Problem is that when I get outside (with or without a lot of sun) I can barely see anything on the screen. Well, barely anything is a bit exagerated (sp?) but the quallity of what I see on the screen isn't good enough IMO. Is there anything I can do/buy to at least reduce this effect?
Of course buying another/new laptop is out of the question. (I'm paying a monthly amount of money since the laptop costed 1500 euros)
Problem is that when I get outside (with or without a lot of sun) I can barely see anything on the screen. Well, barely anything is a bit exagerated (sp?) but the quallity of what I see on the screen isn't good enough IMO. Is there anything I can do/buy to at least reduce this effect?
Of course buying another/new laptop is out of the question. (I'm paying a monthly amount of money since the laptop costed 1500 euros)