TFT LCD screen is a common display type in modern electronic equipment, with advantages such as high resolution and bright colors, but some users may encounter the problem of flickering screen when using TFT LCD screen. What is the cause of TFT LCD screen flickering?
The TFT LCD screen flickering problem can be attributed to two main reasons: the frequency of the TFT LCD screen itself is too high and the frequency of the TFT LCD screen is similar to the light source.
First of all, the high frequency of the TFT LCD screen itself is one of the common causes of flickering problems. This is because the TFT LCD screen uses current transmission technology, and its refresh rate usually reaches tens to hundreds of hertz. For some sensitive users, such a high frequency may cause visual fatigue and discomfort, resulting in a flickering phenomenon.
Second, the frequency of the TFT LCD screen is similar to the frequency of the light source, which may also cause flickering problems. In the indoor environment, the main light source we use is the electric lamp. Generally speaking, the frequency of electric lights is 50 Hz or 60 Hz, and the refresh rate of TFT LCD screens is usually in a similar range. Therefore, when the refresh rate of the TFT LCD screen coincides with the lamp frequency, visual flickering may occur, that is, the screen flickering phenomenon.
When the refresh frequency of the TFT LCD screen is the same as the frequency of the light source, a resonance phenomenon may occur between the two, which will cause the human eye to feel the change of light and dark when viewing, resulting in a flickering picture effect. This flickering phenomenon will not only affect the user experience, but may also cause discomfort to the eyes, and long-term use may also cause eye fatigue and even eye problems.
In order to solve the problem of TFT LCD screen flickering, the following methods can be adopted:
1. Adjust the refresh rate of the TFT LCD screen: Some electronic devices such as computers and mobile phones allow users to set the refresh rate of the screen by themselves. You can try to adjust the refresh rate to a lower level to avoid flickering problems caused by excessive frequency.
2. Choose a low-frequency light source: In an indoor environment, you can try to choose a light source with a lower frequency, such as a light bulb with a lower frequency, to reduce the resonance with the frequency of the TFT LCD screen
3. Increase the brightness of the light source: Appropriately increasing the brightness of the indoor light source can help reduce the flickering phenomenon of the TFT LCD screen. Brighter light sources reduce the human eye's sensitivity to screen flicker.
In short, the flickering problem of the TFT LCD screen during use can be solved by adjusting the refresh rate of the screen, selecting a low-frequency light source, and increasing the brightness of the light source. For those users who are sensitive to screen flicker, it is very important to pay attention to adjusting the appropriate frequency and brightness to protect eye health.
Post time: Aug-29-2023