digital signage display device

World is now changing and using new technologies to get high performance as well as cost effective solution. As in the past, SAMSUNG, LG, AUO, BOE, and other well-known LCD panel suppliers only provided fully finished panels, resulting in high costs. With the advancement of the LCD industry, the cost of a whole machine is now lower than the cost of an LCD panel. As a result, Clients are looking for another cost-effective solution to assure a reasonable profit. Then, in order to reduce the material cost of the External Frame, the Open Cell solution is developed, which helps up the expansion of small-scale companies in the LCD industry. So, what is open cell solution and how it’s going to make a cost effective solution? An Open Cell is just a part of LCD panel without backlight. As we all know that getting the fully finished LCD panel (Traditional LCD module product) from SAMSUNG, LG, AUO, BOE, and other well-known suppliers were expensive. But, if we use Open cell solution to assemble all parts by ourselves to achieve the complete LCD module panel that would be very cost effective. In another approach, the Open Cell solution will not only reduce the cost of the LCD screen, but will also make the entire machine thinner than before. Certainly, a solution with a cheaper cost and a more fashionable appearance is currently very popular. The Open Cell Solution products will be the dominant trend in the LCD sector in the near future.

The display screen can be divided into three types: normal temperature, wide temperature, and ultra-wide temperature according to the supported working temperature range. The normal temperature display supports the working temperature between 0 °C and 50 °C, and the wide temperature display supports the working temperature between -20 °C and +70 °C. ℃, the ultra-wide temperature display supports the working temperature between -40℃～+90℃. Usually, the display screen with good low-temperature performance will have poor high-temperature performance. The wider the operating temperature range, the higher the price. Users can choose suitable display products according to actual use conditions.

[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