9 Factors Determine the Quality of LED Display

At present, there are many kinds of LED displays in the market with huge price differences. Consumers have a headache. The key is that they don't know how to buy high-quality displays. Because each manufacturer has different price positioning in the production of LED display screens, the quality requirements are also different. What are the differences in quality for LED display screens at different prices?

1. Antistatic

LED is driven by low voltage, so it is sensitive to high voltage and antistatic ability. The better the natural quality of LED with high static resistance.

2. Brightness

LED is a kind of material that directly converts electric energy into light energy. Luminous efficiency determines the value of LED itself. In addition, the larger the LED chip size, the higher the luminous brightness, the higher the brightness, and the better the quality.

3. Wavelength

After the LED emits light, the band will be generated, and the nearest distance to the farthest 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 screen with the same wavelength. If the wavelength is inconsistent or the deviation is too large, the LED display screen will have different color difference when viewed from the side.

4. Leakage current

LED is a unidirectional conductive light-emitting conductor. When redesigning the circuit board, the requirements for the reverse current of the circuit board are very strict. If there is a reverse current, the service life of LED will be shortened.

5. LED luminous angle

The LED luminous angle will directly affect the brightness and consistency of the display screen. The concept of consistency is that when you look at the display screen from any angle, the displayed color is the same. If the angle is inconsistent, 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 attenuation degree of LED in working state. The faster the decay, the shorter the life.

7. LED chip

In the market, there are many brands of LED chips, including Cree in the United States, Riya in Japan and Taiwan. Now there are chip manufacturers in the mainland. Different chips have different stability, brightness and service life.

8. Chip size

Chips have different sizes, which are defined by side length. The larger the size, the better the performance, and the better the natural quality.

9. Epoxy resin colloid

LED is the finished product after packaging. Conventional plug-in LED chip will become the finished product after solid crystal, welding wire, dispensing, epoxy resin packaging and cooling. Epoxy resin is a transparent solid. The better the quality of colloid with UV resistance and fire resistance.

9 Factors Determine the Quality of LED Display 1

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