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Liquid crystals can settle or become less responsive if not used for a long time. When powered on after years of storage, the display might initially show slow response times or uneven colors. Usually, this can be fixed by running the display for a few hours to "wake up" the liquid crystals. The LED backlight may degrade slightly over time, especially if stored in humid or extreme temperature conditions. This can lead to uneven brightness or color shifting. Running the display for a few minutes every few months can help keep the liquid crystals active. Use a protective case to prevent dust and physical damage.