Bad for your eyes! ! ! Without turning on the light, the background of the screen will be very dark, and the small and bright fluorescent screen will form a strong contrast with the background. Over time, our eyes will feel tired, just as we stare at the light for a long time; In a completely dark environment, mobile phones will also increase the consumption of vitamin A in the body.

If all the lights in the room are turned on when watching TV, the screen will look gloomy under the bright background, which will reduce the contrast and gray level of the image, and the image will become blurred, which will greatly affect the viewing effect. If you look at this unclear picture for a long time, it will also affect your eyesight.

It's not good to turn off all the lights or turn them on when watching TV like this. It is best to turn on a small light bulb with low wattage and soft light indoors, and it is best to have a cover to adjust the indoor background brightness, so that the eyes will not feel tired, the reception effect is good, and the consumption of vitamin A in the body can be reduced.

When placing a small wattage electric lamp, we should pay attention to the following two problems: first, this kind of lamp should not appear in people's field of vision when watching TV, so as not to distract attention and produce unnecessary stimulation; Second, the light should not be directed to the fluorescent screen, so as not to affect the image quality.