How to change contrast in Inspiron 1564?

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How to change contrast in Inspiron 1564?

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Like it already says in subject, how can I change contrast in Inspiron 1564?

I can find only keys to change brightness of the screen, but I haven't found a way to change contrast. Screen is all screwed up with factory values, but there's no information in manual how to change contrast.

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  • You can not change the contrast with an LCD screen. Contrast is the quality of the black level, and is built into the screen. You get what you see! Cheaper panels will have poorer contrast.

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