是指发光物体表面发光强弱的物理量称为亮度（luminance），物理学上用L表示，单位为坎德拉每平方米或称尼特。亮度是衡量显示器屏幕发光强度的重要指标，对于显示器面板来说，高亮度也意味着对其工作环境的抗干扰能力更高。
安全起见，研究人员建议，我们应该比以前更少使用电脑，或者在睡觉前尽可能地把屏幕亮度调低。
To be on the safe side, the researchers suggest that we should use computers less than before, or turn down our screens as much as possible before sleeping.
智能手机的屏幕是所有元件里最耗电的，所以降低屏幕亮度是降低电池损耗的最简单的办法。
A smartphone's screen consumes more energy than any other component, so the easiest way to cut down battery drain is to reduce your screen brightness.
要求客户升级BIOS，并且调整BIOS中的屏幕亮度控制设置。在检查BIOS以后问题依然存在。
Requested customer to update BIOS and alter the LCD Brightness control setting in the BIOS. After checking BIOS the problem persisted.
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