In recent years, LED black lights have been increasingly used in LED displays, especially in the field of small-pitch LED displays and stage background screens.

It has become the preferred component of high-end LED display. New Asia Sheng Optoelectronics keeps up with the development trend of the industry, and its self-developed magic stage series P6.25 \P6.9\ P5.9 \P7.8 \P10.4 and other outdoor products

And the newly developed small-pitch display screens P2.0\P2.5 all use high-quality LED black lights. The LED black lights are matched with a black mask, which greatly improves the contrast and picture display effect of the LED display.

The following is an excerpt from OFweek Semiconductor Lighting Network "Why do high-end LED displays favor black lights? "The article reveals the mystery from the white LED light to the black light. What is the reason why the LED display industry favors black light?

What does the "white" of white light mean? ——High brightness suitable for long-distance viewing

To understand the black light LED display, we must first understand the concept of white light. LED is assembled by plastic bracket and chip,

The early chips were not bright, so engineers made the plastic bracket into a white bowl to enhance the focus and reflection, to ensure that the low-brightness chip achieves a brighter effect.

But the white light also has its shortcomings. When it wants to express black and gray, its natural light-emitting diode (white) also participates in the color that the electronic display wants to express.

This produces color distortion (cannot express black, gray, dark green, etc.). Engineers compensated for the lack of brightness of the chip by losing color expressiveness.

In the past, LED display screens were mostly used for outdoor commercial advertising display. Due to the long viewing distance, the brightness of the display screen was required to be higher, and the loss of color could be accepted to compensate for the brightness.

However, now, as the brightness of LEDs is getting bigger and bigger, and the high-density and small-pitch LED displays are becoming more and more mature, the LED lamp beads do not need to be made white to achieve satisfactory results.

At the same time, in order to meet people's requirements for image fidelity and improve the contrast of LED displays, foreign LED display packaging factories CREE and NICHIA first developed black lights.

Domestic LED display packaging factories have achieved the ultimate in black lamp technology, and have developed the black lamp that can provide the blackest level of products in the market.

Comparison of white light (left picture) and black light (right picture)