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According to current market observations, the 20CM thick-type cabinets still have a large amount of LED display screens. The application fields of LED display screens are becoming more and more wide, and the hidden dangers of safety are increasing. The thinness and high power of LED display screens have become the pursuit of most famous manufacturers.
The intelligent LED display mainly competes not only for thickness, but also for more economical, energy-saving power consumption and better image quality. The technical performance advantages of many aspects are the core reason for the thin growth of LED display and the rapid growth of high power market. In the similar products recently introduced by Tongpu, the thickness is about 1cm, which is unmatched by traditional LED displays.
1, smart LED display large screen stitching
Passivation is an integrated system. There are currently four types. The more common ones are projection and LED. Among them, projections are commonly used in 3LCD, DPL and LCOS.
The price of the splicing wall using projection technology is relatively low, and the quality and stability of the picture are relatively high, so the cost performance is high, and it is the mainstream product in the field of splicing walls. Although LED splicing walls are relatively expensive, they are widely used for outdoor digital display because of their resistance to sunlight and wind and rain.
2, side-lit dynamic backlight and low-power technology
Nowadays, the large-scale TV products that are generally mass-produced use direct-type CCFLs as the light source. This type of drive requires Invertor technology. Due to power problems, the use of CCFL as a light source consumes a lot of power, with the technology. Increasingly, the power consumption achieved by this technology is already close to the limit.
With the introduction of high-end products direct-lit LED backlights, the technology to reduce power consumption has reached a new level. With the emergence of high-power LEDs and improved efficiency, the direct-type power consumption is continuously decreasing.
The direct-lit LED backlight also has a breakthrough technology. Localdimming (regional control) is also called dynamic backlight technology, which greatly reduces the power consumption of the backlight and improves the contrast of the TV product, but requires the number of LEDs. More, the thickness of TV products is relatively large, and the aesthetics and flexibility are slightly worse.
The later-launched side-illuminated LED large-size backlight technology combines the advantages of ultra-thin, beautiful, and low power consumption. It is expected that the localdimming technology can be greatly reduced in the large-size backlight of the side-emitting LED, which can greatly reduce the power consumption of the backlight.
The direct-lit LED dynamic backlight is combined with image processing. In the dark place, the LED reduces the current or voltage. This requires relatively high technical requirements for the driver circuit, but greatly reduces the power consumption of the backlight.