What to do with water ripple in liquid crystal display

Water ripple problems often occur when using a flat panel monitor. Liquid crystal display of the so-called water ripple problem, refers to the screen of dark wave interference in a form, to the user feel like a ripple on the water. Some friends said that even if the LCD has just bought water ripple phenomenon, the seller does not give a warranty or replacement.

In fact, most of the water ripple phenomenon is not an LCD flaw, which is why dealers do not have the water ripple phenomenon of the LCD to replace the reasons. Water ripple is a form of interference on the dark wave line on the LCD screen, which is caused by the relationship between the distribution of the fluorescence point and the image signal. Ripple effects often mean a good or bad focus level. The ripple effect is quite noticeable when using a bright gray background. Although the ripple cannot be completely eliminated, it can be lowered in some display with ripple reduction features.

Many people think that the liquid crystal display water ripple phenomenon is the reason is the quality of LCD does not pass. However, the liquid crystal display water ripple problem, the real culprit is the user himself. The reason why the liquid-crystal display appears to be ripples is due to interference with the receiving signal. Therefore, if you find that your LCD has a ripple of water, the first thing to do is to find the reason from their own.

First, the most closely related to the water ripple problem is the video signal line of the liquid crystal display. In many entry-level LCD, it is often only equipped with a VGA analog interface, so these users are often used are d-sub signal line. and d-sub signal line anti-interference ability is relatively weak, large screen LCD is best to use DVI signal line. In addition, the quality of the signal line is also divided into hierarchy. Some of the poor quality of the signal line, its anti-interference ability is very poor, often these products will lead to the emergence of water ripple phenomenon. When you buy the LCD, often LCD has been equipped with an original d-sub line or DVI line, these original signal line quality is still good, but some profiteers have a fancy to this point, with some inferior signal line to the original line to the switch, so everyone in the purchase of LCD, must also pay attention to this problem. If your LCD unfortunately appears the phenomenon of water ripple, may wish to try to replace the video signal line try.

In addition to the problem of signal lines, another cause of the liquid crystal display water ripple phenomenon is the source of interference. For example, the mobile phone, or other electrical appliances on the LCD, away from the signal line, from the graphics interface is very close to the place, so it is possible to cause such problems, in addition, the contact of the signal line is intact, the card slot is good, these will have a certain relationship.