Consumers have a headache for the large variety of LED displays in the current market with huge price differences. The key is not knowing how to get a good quality display. Because different manufacturers are producing different prices for LED display screens, the quality requirements are also different. So what are the differences in quality for LED display screens of different price points?
1. Antistatic
LED is driven by low voltage, so it is sensitive to high voltage and antistatic ability. The natural quality of the anti-static LED is better.
2. Brightness
LED is a material that directly converts electrical energy into light energy. Luminous efficiency determines the value of the LED itself. In addition, the higher the brightness of the LED chip size, the higher the brightness, the better the quality.
3. Wavelength
After the LED emits light, a band will be generated, and the shortest distance to the longest distance of the band will be divided into different wavelengths. The display screen has strict requirements on the wavelength of the LED lamp, the better the display effect of the display screen with the same wavelength, if the wavelength is inconsistent or the deviation is too large, the LED display screen has a different color difference 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 a reverse current, the life of the LED will be shortened.
5. LED light emitting angle
The angle of LED light will directly affect the brightness and consistency of the display. The concept of consistency is to view the display from any angle. The display color is the same. If the angle is not consistent, there will be color difference.
6. LED life
LED life is determined by LED chip, LED bracket, LED gold wire and LED packaging structure. The key factor of LED life is the degree of LED attenuation in the working state. The faster the attenuation, the shorter the life.
7. LED chip
In the market, there are many brands of LED chips, foreign countries are the United States CREE, Japan's Japan and Asia, and the other is Taiwan, and now there are chip manufacturers in the mainland. Different chips have different stability, brightness, and lifespan.
8. Chip size
The chips have different sizes, and the chip size is defined by the side length. The larger the size, the better the performance and the better the natural quality.
9. Epoxy resin colloid
The LED is a finished product after encapsulation, and the conventional plug-in LED chip will be a finished product after cooling by solid crystal, bonding wire, dispensing, and epoxy resin packaging. Epoxy resin is a transparent solid, the better the quality of colloids with UV resistance and fire resistance.
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