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1, antistatic
LEDs are low voltage drivers and therefore sensitive to high voltage and antistatic capabilities. The anti-static large LED natural price is relatively high.
2, brightness
LED is a material that directly converts electrical energy into light energy. The luminous efficiency determines the value of the LED itself.
In addition, the larger the size of the LED chip, the higher the brightness, and the higher the brightness, the more expensive the price.
3, wavelength
After the LED emits light, a band is generated, and the closest distance to the farthest distance of the band is divided into different wavelengths. The display screen has strict requirements on the wavelength of the LED lamp. The effect of the display with the same wavelength is better. If the wavelength is inconsistent or the deviation is too large, the LED display will have different chromatic aberration feeling when viewed from the side.
4, leakage current
LED is a unidirectional conductive light-emitting conductor. When designing a circuit board, the reverse current of the circuit board is very strict. If there is reverse current, the life of the LED will be shortened.
5, LED illumination angle
The LED illumination angle directly affects the brightness and consistency of the display. The concept of consistency is to view the display from any angle, and the displayed color is the same. If the angles are inconsistent, there will be chromatic aberration.
6, LED life
LED lifetime is determined by LED chip, LED bracket, LED gold wire and LED package structure.
The key factor in LED lifetime is the extent to which the LED is attenuated during operation. The faster the decay, the shorter the life.
7, LED chips <br> In the market, there are many brands of LED chips, foreign countries have American CREE, Japan's Nichia, and Taiwan's, and now there are chip manufacturers in mainland China. Different chips have different stability, brightness and life.
8, chip size <br> The chip has different sizes, the chip size has a side length to define. The larger the size, the better the performance and the higher the natural price.
9, epoxy resin colloid
After the LED is packaged, it is a finished product. The conventional plug-in LED chip will become a finished product after being cooled by die bonding, wire bonding, dispensing, and epoxy resin packaging. Epoxy resin is a transparent solid with a high price of colloids with UV and fire resistance.
The above nine points are the main reasons for the uneven price of LED displays. Customers can compare in detail when purchasing to learn more comprehensive knowledge.
What are the factors that cause different prices for LED displays?
[ Huaqiang Security Network News ] In view of the wide variety of prices on the market and the huge price difference between LED display screens, consumers have a headache, the key is not knowing how to buy a good quality display. Because each manufacturer produces different LED display price positioning, the quality requirements are different, then what is the difference between LED display screens for different price points? The factors that cause different prices for LED displays are as follows: