Technology | characteristics and evolution trend of background system with mini pixel pitch display screen

Through nearly five years of development, small spacing LED display has greatly improved the clarity of display panel. With the increase of density, the difficulty of further reducing the pixel spacing increases gradually.

At the same time, the background support system of LED display screen is undergoing in-depth reform. The signal driving system of the display screen is commonly known as the sending card and receiving card. The sending card has gradually developed from the embedded PCI slot to the external configuration with independent power module.

After the application of small spacing, the standard 1U rack type is adopted. These are only changes in the shape and access mode. In terms of the carrying capacity of the system, the transmitting card is gradually adapting to the carrying capacity of video resolution under the standard video format, the most typical example is the single station access supporting 1080p signal; The introduction of HDMI interface input is to match the front-end matrix, spell control interface and resolution of the small spacing signal access platform.

As for the receiving card, the carrying capacity of a single card increases with the pixel density of the display unit, and the space in the unit is narrow, gradually deriving a memory module receiving card with strong carrying capacity and small volume.

In addition, in terms of dual backup of signals, small spacing LED displays mostly adopt the traditional form of signal loop. When the system is stable and reliable, this form can achieve a certain degree of dual backup. However, in the near future, more manufacturers will use the form of dual system card to replace the signal loop, so as to greatly improve the stability of the system.

It can be predicted that the receiving card supplier of the system is seeking a breakthrough in business, and there are also exploration and Discussion on the form of integrated circuit chip. I believe it will not be long, and there will be a subversive form on the display driving system. At the level of signal access platform of video splicing wall, equipment suppliers at all levels are gradually rejecting to accepting small spacing LEDs.

Judging from the standard hardware device splicing controller of splicing wall at present, the product is output by the initial interface with fixed resolution. In order to adapt to the signal access characteristics of small spacing LED products, the interface resolution is developed, which can be defined freely.

From the original led small spacing manufacturers looking for splicers that can customize the output resolution in the whole industry, up to now, splicers in the whole industry have supported or are trying to support led splicing, which can not be said to be a compromise and progress of technology to the market.

It is not difficult for us to find that led small spacing products gradually penetrate into the professional display field from the traditional commercial display carrier, and are constantly adjusted and improved from the product itself to the background system.