What should I do if there is a
Nov .17.2025
quan điểm
The outdoor advertising machine pixel under the magnifying glass is square, and each pixel is a luminous point. Each luminous point has an independent transistor to control its current intensity. If the transistor at the control point is broken, the light spot will always be on or off. This is the bright spot or dark spot we mentioned earlier, which is generally called "bad spot"! A specific concept of "bad point" is to distinguish several grades of advertising machines according to it in the future.
A "bad spot" is a pure black spot in the case of a white screen and a pure white spot in the case of a black screen. When switching to red, green and blue display mode, the point is always in the same position, and it is always pure black or pure white. In this case, it means that the R, G and B pixels of this point have been damaged, so it is called a bad point.
1. How about the outdoor advertising machine?
Outdoor advertising machine is a product with higher brightness than ordinary LCD screen.
The illumination brightness of outdoor advertising machine can reach 2000 nm, while the highlight of general LCD screen is less than 700 nm, so it can't be seen clearly outdoors, while outdoor advertising machine can be used outdoors. The principle of outdoor advertising machine is that its backlight has high brightness, which is close to or even higher than the highest outdoor brightness of 2000 nm, so that outdoor LCD can be seen and displayed.
Second, what are the advantages of outdoor advertising machines?
1. The outdoor advertising machine has the function of automatic temperature adjustment at low temperature to avoid frostbite of the outdoor advertising machine; The perfect internal anti-seismic structure can completely meet the working requirements of various military materials against vibration and low-temperature impact. When the ambient temperature is higher than 60 degrees Celsius, start the protection function, turn off the backlight and LCD screen, and automatically turn on the backlight and LCD screen when the ambient temperature is lower than 45 degrees Celsius.
2. Outdoor advertising machine adopts ultra-low power consumption drive circuit design. In the design of driving circuit, driving efficiency is particularly critical. The driving efficiency of the driving plate is between 85% and 95%. Higher driving efficiency helps to reduce the power consumption and heat generation of the whole machine.
3. The outdoor advertising machine has good brightness. Although the outdoor advertising machine has high brightness, it is soft and not dazzling.
Generally speaking, the advantages of outdoor advertising machine are: super bright, high contrast, low power consumption, high and low temperature control function, preheating function, adaptive backlight brightness level, anti-seismic and anti-interference function, long service life and so on. Outdoor advertising machines are widely used, first of all, the public's information inquiry, such as the business inquiry of telecommunication bureau, tax bureau, bank, electric power and other departments, and the information inquiry of urban streets. In the future, LCD high-brightness screens will enter our lives more and more. The advantages of technology, convenience and convenience will determine that it is ubiquitous in our lives.
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