How to check the quality when purchasing LED display
Time:2018-11-17
Views:279
In recent years, the LED display screen market has become larger and more widely used.LED display screen manufacturers are also increasing, in addition to the established well-known LED enterprises, there are also a number of small manufacturers.Although the market is getting bigger, the competition is getting bigger.There is good technological competition, but there is also bad price war.In order to survive, small new LED manufacturers enter the market with low price and can quickly open up the market and grab some customers.
But in many cases, there are a number of accidents because of technical, quality problems.The customer then spends more time on repairs than it pays.Therefore, the LED display is not a tool for a short time. It does not want a phone, and can be replaced once a year.The reason for the emergence of various cheap domestic mobile phones in the market is that although the technical quality is not as good as that of imported apple, the sales volume is far higher than that of apple. The reason is that the mobile phone is a tool for consumers in a short period of time, and it is quickly replaced.
But LED displays are different. They take a long time, five years, eight years, ten years, or more.So low prices must not be an important factor in consumers‘ choice of LED display.Good quality and durability are the real savings to customers.
Because of LED, IC are semiconductor devices, they are critical of the use of environmental requirements, best at room temperature 25 ℃ or so, its working mechanism is the best.But in fact a outdoor screen will be used in different temperature environment, may be in more than 60 ℃ in summer, winter may be under - 20 ℃.When factory production product is 25 ℃ as test conditions, the different step of product classification, but the fact running condition of 60 ℃ or - 20 ℃, then LED, IC work efficiency and performance, may belong to a becomes more original file, the brightness is not consistent, the screen body is naturally get spent.
This is because under the condition of different temperatures, red, green, blue three kinds of the brightness of the light attenuation and drop is different, at 25 ℃, the white balance is normal, but at 60 ℃, the three colors of the brightness of the leds are decreased, and the attenuation values are not consistent, so will produce the whole screen brightness decline and the phenomenon of partial color, the quality of the whole screen will drop.
The IC?Working temperature range is in IC - 40 ℃ to 85 ℃.Due to ambient temperature is too high the casing temperature, if the temperature over 85 ℃, IC, because temperature is too high, cause of the work is not stable, or the channel between current extraction and temperature drift or caused by too much difference between flowers screen.
But in many cases, there are a number of accidents because of technical, quality problems.The customer then spends more time on repairs than it pays.Therefore, the LED display is not a tool for a short time. It does not want a phone, and can be replaced once a year.The reason for the emergence of various cheap domestic mobile phones in the market is that although the technical quality is not as good as that of imported apple, the sales volume is far higher than that of apple. The reason is that the mobile phone is a tool for consumers in a short period of time, and it is quickly replaced.
But LED displays are different. They take a long time, five years, eight years, ten years, or more.So low prices must not be an important factor in consumers‘ choice of LED display.Good quality and durability are the real savings to customers.
Because of LED, IC are semiconductor devices, they are critical of the use of environmental requirements, best at room temperature 25 ℃ or so, its working mechanism is the best.But in fact a outdoor screen will be used in different temperature environment, may be in more than 60 ℃ in summer, winter may be under - 20 ℃.When factory production product is 25 ℃ as test conditions, the different step of product classification, but the fact running condition of 60 ℃ or - 20 ℃, then LED, IC work efficiency and performance, may belong to a becomes more original file, the brightness is not consistent, the screen body is naturally get spent.
This is because under the condition of different temperatures, red, green, blue three kinds of the brightness of the light attenuation and drop is different, at 25 ℃, the white balance is normal, but at 60 ℃, the three colors of the brightness of the leds are decreased, and the attenuation values are not consistent, so will produce the whole screen brightness decline and the phenomenon of partial color, the quality of the whole screen will drop.
The IC?Working temperature range is in IC - 40 ℃ to 85 ℃.Due to ambient temperature is too high the casing temperature, if the temperature over 85 ℃, IC, because temperature is too high, cause of the work is not stable, or the channel between current extraction and temperature drift or caused by too much difference between flowers screen.
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