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Home > How To > What if there are water ripples on the LCD?
What if there are water ripples on the LCD?

What if there are water ripples on the LCD?

By  Georges Mesnikoff 2020-01-18 3074 165

Water ripple problems often occur when using liquid crystal displays. The so-called water ripple problem in LCD refers to a form of interference of dark wave lines on the screen, which makes users feel like ripples on the surface of the water. Some friends say that even if there is a ripple phenomenon in the LCD that you just bought, the seller will not give you a warranty or replacement.

In fact, most of the ripple phenomenon is not a defect of the LCD, which is why dealers do not replace the LCD with ripple phenomenon. Water ripple is a form of interference of dark wave lines on LCD screen, which is caused by the relationship between the distribution of fluorescent spots and image signals. The ripple effect often means that the level of focus is good or bad. When using a bright gray background, the ripple effect is quite obvious. Although the ripple cannot be completely eliminated, it can be reduced in some displays with the function of ripple reduction.

Many people think that the reason why liquid crystal display appears water ripple phenomenon is that the quality of LCD does not pass. However, liquid crystal display water ripple problem, the real culprit is the users themselves. The reason why the liquid crystal display appears water ripple is mostly due to the interference of the received signal. Therefore, if you find that there are water ripples in your LCD, the first thing you need to do is to find the reason from yourself.

First of all, what is most closely related to the water ripple problem is the video signal line of the LCD. In many entry-level LCD, it is often equipped with only one VGA analog interface, so these users often use D-Sub signal lines. While the anti-jamming ability of D-Sub signal line is relatively weak, it is best to use DVI signal line for large screen LCD. In addition, the quality of the signal line is also divided into three, six or nine grades. Some poor quality signal lines, their anti-interference ability is very poor, often these products will lead to the emergence of water ripple phenomenon. When we buy LCD, often LCD has been equipped with an original DSUB line or DVI line, the quality of these original signal lines is still good, but some profiteers take a fancy to this point, using some inferior signal lines to switch these original lines, so when we buy LCD, we must pay attention to this problem. If your LCD unfortunately appears the phenomenon of water ripples, you might as well try to change the video signal cable.

In addition to the problem of the signal line, another cause of water ripple on the LCD is the interference source. For example, the mobile phone or other electrical appliances are placed very close to the LCD, the signal line and the graphics card interface, which may also cause such problems. In addition, whether the contact of the signal line is intact or not. Whether the video card slot is connected, these will have a certain relationship. What if there are water ripples in

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