It is possible to encode data in the light by varying the rate at which the LEDs flicker on and off to give different strings of 1s and 0s.

在LED快速通断中，通过光源的变化比率进行可能的编码进行发送0和1。

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This refresh rate caused the display's image to flicker, causing eye fatigue and headaches in use.

这造成显示器刷新率”的图像闪烁，引起眼疲劳和头痛。

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Note: for typical displays, flicker occurs at a refresh rate of40 Hz or less.

注：典型的显示器出现闪烁现象是在刷新率为40赫兹或更低时。

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Note: for typical displays, flicker occurs at a refresh rate of40 Hz or less.

注：典型的显示器出现闪烁现象是在刷新率为40赫兹或更低时。

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