如果是LCD的話，那依照你的離開時間來決定多久進入待機模式，對燈管會比較好，因為就算執行營保程式，LCD的背光燈管仍在損耗，以sgi 1600SW來說，原文資料如下：
The monitor's digital interface is upgradable to future display resolutions that exceed HDTV (1920x1080). We've chosen lamps that if used eight hours a day at full brightness, for example, will go 20,000 hours (seven years) before they reach half brightness. At 235 candelas per meter squared at the beginning of life, at the end of their half-lives these lamps will be 50 percent brighter than a CRT is, at 100 or 120 candelas. And at the end of their lives instead of throwing away the entire unit as you must with a CRT, all you need to do is bring the monitor to a service center and have the lamps replaced.
開最大亮度下，每天用8小時，使用七年後，亮度會剩下燈管新品亮度的一半。
所以不用時，還是進入待機比較好。

若是CRT的話，則建議短期間離開時，進入螢幕保護程式，不過只要選最簡單的『留言顯示』，背景調成純黑色的，一來減輕CPU的負擔，有些營保程式也是當機的兇手。二來此時電子槍不會持續打在螢光層上，可以增加CRT的壽命。長時間離開時，就自己決定是待機或關機吧！

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