What should I do if there are "bad spots" on outdoor advertising machines

What does the 'bad points' of outdoor advertising machines mean? To understand this issue, first let's understand the principle of advertising machines. Advertising machines are actually composed of a large number of pixels and can display black and white, as well as the three primary colors of red, yellow, and blue. Then, by combining some pixels of different colors, we can accurately see the image displayed by the advertising machine. This is a basic principle of advertising machines.

The pixels of the outdoor advertising machine under the magnifying glass are square, and each pixel is a luminous point. Each light-emitting point has an independent transistor to control its current intensity. If the transistor of the control point is broken, it will cause the light spot to stay on or off forever. This is the bright or dark spot we mentioned earlier, generally referred to as the 'bad spot'! A specific concept of "bad points" is to distinguish several levels of advertising machines based on it in the future.

Bad pixels are pure black dots on a white screen and pure white dots on a black screen. When switching to red, green, and blue display modes, the point remains in the same position, always in 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 pixel.

1、 How about outdoor advertising machines?

Outdoor advertising machines are products with higher brightness than ordinary LCD screens. The illumination brightness of outdoor advertising machines can reach 2000 Newton meters, while the brightness of general LCD screens is within 700 Newton meters, which cannot be seen clearly outdoors. However, outdoor advertising machines can be used outdoors. The principle of outdoor advertising machine is that its backlight source has high brightness, close to or even higher than the maximum outdoor brightness of 2000 Newton meters, so that the outdoor LCD can be seen and displayed.

2、 What are the advantages of outdoor advertising machines?

(1) Outdoor advertising machines have low-temperature automatic temperature control function to avoid frostbite of outdoor advertising machines; The complete internal seismic structure can fully meet the working requirements of various military materials for vibration resistance and low-temperature impact. When the ambient temperature is above 60 degrees Celsius, activate the protection function, turn off the backlight and LCD screen. When the ambient temperature is below 45 degrees Celsius, automatically turn on the backlight and LCD screen.

(2) The outdoor advertising machine adopts an ultra-low power drive circuit design. In the design of driving circuits, driving efficiency is particularly critical. The driving efficiency of the drive board is between 85% and 95%. Higher driving efficiency helps reduce the power consumption and heat generation of the entire machine.

(3) Outdoor advertising machines have good brightness. Although outdoor advertising machines have high brightness, they are soft and not glaring.

Generally speaking, the advantages of outdoor advertising machines include: ultra-high brightness, high contrast, low power consumption, high and low temperature control function, preheating function, adaptive backlight brightness level, earthquake resistance and anti-interference function, long service life, etc. Outdoor advertising machines are widely used, first and foremost for information retrieval by the general public, such as business inquiries from telecommunications bureaus, tax bureaus, banks, power departments, and information inquiries from urban streets. In the future, LCD high brightness screens will increasingly enter our lives. The advantages of technology, convenience, and ease will determine its ubiquitous presence in our lives.