what is video wall panel

The following are the precautions for LCD module operation:   If the display screen is damaged and the internal LCD leaks, do not let it enter the mouth. If it gets on clothes or skin, wash it quickly with soap and water. In order to reduce static electricity, do not carry out assembly and other work in dry environment. The LCD module has a film to protect the display screen. Be careful when removing this protective film as it may generate static electricity. The display screen is made of glass. Do not apply mechanical impact, such as falling from height. It must be grounded correctly. Minimize electrode corrosion. Water droplets, moisture condensation or current in high temperature environment may accelerate electrode corrosion. At low temperature, liquid crystal solidification will lead to directional defects or bubbles. When the liquid crystal module is subject to strong vibration at low temperature, bubbles will also be generated. If the LCD module works for a long time and displays the same pattern, the pattern will remain on the screen like a phantom, and there will be subtle contrast differences. If you want to regain the normal working state, you can temporarily stop using it for a while. It is worth noting that this phenomenon will not have an adverse effect on the reliability of the performance.

Everyone is very familiar with LCD TVs, but many people don’t understand digital signage products. In fact, when we go to a hotel or shopping mall, we often see this product in the lobby, which often displays the advertising content of the hotel or shopping mall. Most people think that this is an ordinary LCD TV, but the size is a bit larger, so is this really the case? Is a digital signage a liquid crystal display? In fact, digital signage is not that simple, and there are still many scenarios in which digital signage is currently used. In addition to the hotels we are talking about, many retail industries have also begun to use digital signage products. For example, the fast food restaurants we often go to have used light boxes behind the ordering counters to display their dishes. Now many stores have also upgraded to digital signage products. In simple terms, digital signage is actually a numerical display system used in the commercial field. 1. Digital signage is usually equipped with a system Here is the system, in fact, this is the biggest difference between digital signage and liquid crystal display. We all know that the LCD monitor itself is only responsible for the function of screen output. The most important role of digital signage is actually the system behind it. Different from ordinary intelligent LCD, the digital signage system has the function of remote management. Users can design the display content by themselves, or download the template

[Fault Phenomenon] One LCD touch screen doesn’t work, and there is no response when touching any part.   [Fault Analysis and Treatment] First check whether the connection interface is loose, and then check whether there is conflict between serial ports and interrupt number. If there is conflict, adjust resources to avoid conflict. Then check whether there are cracks on the surface of the touch screen. If there are cracks, replace them in time, Also need to check whether there is dirt on the touch screen surface, if there is, use a soft cloth to remove it. Observe and check whether the indicator light on the control box works normally. When it works normally, the indicator light is green and flashes.   If the above parts are normal, the touch screen can be checked by replacement method, first replace the control box, then replace the touch screen, and finally replace the host.   If it is a resistive touch screen, it can be overhauled as follows: 1）Check whether the connection of the touch screen is right, and whether one of the connections (taking 5V touch screen working voltage from the keyboard port) is connected. Please check the connection. 2）Observe the light condition of the touch screen control box. If it doesn’t light up or the red light is on, the control box is broken. Please replace it. 3）If not, please delete the touch screen driver and restart the computer, re-install the driver, or replace the driver with a newer version. 4）If