Written By Mark Wang On 17th November 2022
LCD advertising machine is a dynamic advertising communication media, suitable for a variety of indoor and outdoor scenes. Because of the diversity of application scenes, LCD advertising machine as an electronic product may appear bad phenomenon. The following CY Digital Signage to give you a brief introduction to why the LCD advertising machine in the use of the process of water mist.
1. Environmental factors
In order to protect the LCD screen, we usually add a layer of tempered glass on the surface of the screen, there is a certain gap between the two, to ensure heat dissipation, we reserved the air channel for air convection. This time the main reason for the fog is the screen temperature and the outside temperature difference, hot air meets the lower temperature of the glass surface condensation thus producing water mist, with capacitive touch screen machine will also appear a block of grid marks. This is a normal phenomenon. Water mist does not affect the normal use, generally after a few hours of use, fog and marks will slowly evaporate. The above situation is most likely to occur in the rainy season or humid environment.
The outdoor models of advertising machine working humidity is 5-95% RH, should be in a ventilated dry place, and outdoor models have fans / air conditioning cooling system, the failure rate will be relatively low. If the environmental humidity is too high, indoor models will definitely appear fogging phenomenon, outdoor models are relatively good.
A. Glass sealing
Glass idle for a long time will lead to fogging around the glass, accompanied by bubbles in serious cases. At this time we need to check the dryness of the glass, the dryness of the cover cloth, EVA film dryness (pay attention to baking or lengthening the low temperature section insulation time). There is also a situation is the whole surface of the glass appears uniform fog, need to extend the high temperature section insulation time or film quality problems (Except for the general transparent film), the middle of the glass local white fog, accompanied by bubbles in serious cases, and the cause of this problem is that the glass or film damp or water droplets.
B. The inner screen or border gap
Due to the production and assembly process, the inner screen or bezel is not firmly adhered, resulting in water vapor infiltration.
C. Signal source
The signal source is unstable or there is a problem with the transmission line.
1. Try to place the machine in a ventilated and non-humid place.
2. Do not leave the glass idle for a long time, and to keep the storage environment dry and ventilated
3. Improve the production and assembly process, increase quality control efforts, so as to reduce the defective rate
4. Test the signal source and connection accessories before power on.
5. LCD fog screen, you can not wait for the screen fog water to dry out, LCD is the most afraid of water, if you open the monitor found on the screen gas, the outside can be gently wiped away, if the internal fog, then you should close the monitor, with a desk lamp will be baked inside the LCD fog on the good. Do not think that let the LCD screen to the sun is good, that can let the internal fog dry, but at the same time will cause the internal components aging.
6. When the LCD internal fog is heavy, do not take apart and wipe yourself, this is likely to hurt other parts inside the monitor. Therefore, within the warranty period, you better send to the after-sales service point repair, after the warranty period directly to a professional place to repair.
The above is CY Digital Signage teach you to determine the situation of water mist inside the LCD monitor screen, and the corresponding treatment methods. We provide the perfect solution for any business with affordable and customized digital signage displays sent right to you. Feel free to contact us with any questions or need any help. Our mission is to provide you with the best products and services possible. Feel free to CONTACT US with any questions or need any help. Our mission is to provide you with the best products and services possible.
Mark Wang
Mark Wang is the Chief Technology Officer at CY Digital Signage. And he has over 15 years experiences in digital signage solutions.