有一些旋钮在上面，用来调节显示器亮度，对比度，颜色以及屏幕大小和位置等。

On the monitor, there are some knobs which are used to adjust its lightness, contrast, color and the screen's size and location, etc.

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如果显示器没有图像显示，首先确保正确设置亮度和对比度的调节进行正确的设置。

If there is no image on display monitor, first ensure that the adjustment for brightness and contrast are properly set.

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如果需要放大阅读，调节电脑显示器，尽量使用反光，不要总是提高屏幕亮度。

For extended reading, change your monitor settings to a reflective lighting scheme. But don't only think about your computer lighting.

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如果需要放大阅读，调节电脑显示器，尽量使用反光，不要总是提高屏幕亮度。

For extended reading, change your monitor settings to a reflective lighting scheme. But don't only think about your computer lighting.

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