My lenovo m700z screen blur and have horizontal lines. Is it fixable?

My lenovo m700z screen blur and have horizontal lines. Is it fixable?

My all in one PC is ok 2 days ago. Then suddenly when i switched it on this morning, there are horizontal lines, and color seems like smudged and i cannot see the letters well unless i enlarged it 150%. Is this fixable? I have been asking around, most of them tell me it is not fixable and advice me to throw it away.