Can solar energy help LED display energy saving?
Abstract: A profound change that has a bearing on China's overall development has arrived. Adhering to the development concept of “innovation, coordination, green, openness, and sharing”, the “13th Five-Year Plan” will lead China to a comprehensive well-off society and head to the “first hundred-year goal” of the Republic. Looking closely at these five development concepts, the word "green" is particularly eye-catching and moving towards more
A profound change that has a bearing on China's overall development has arrived. Adhering to the development concept of “innovation, coordination, green, openness, and sharing”, the “13th Five-Year Plan” will lead China to a comprehensive well-off society and head to the “first hundred-year goal” of the Republic. Looking closely at these five development concepts, the word "green" is particularly eye-catching, and it is bound to become a more economical and energy-saving path, and it will certainly become one of the directions of future enterprises. After decades of development of LED display screens, energy conservation has become one of the biggest selling points of LED electronic display publicity. At the same time, it has become the focus of discussion.
At present, the LED display is divided into a single color, a double primary color, a three primary color (full color), four primary colors (RGB + yellow Y), and five primary colors (RGB + cyan G + yellow Y) according to the color. Most of the commercial advertisements use three-color full-color display screens. The four primary colors are used less in terms of cost, and the five primary colors are still in theory.
The luminescent material of the LED display itself is energy-saving, but since the LED display is usually used in applications where the display area is relatively large, the area ranges from tens of square meters to thousands of square meters. Long-term operation and high-brightness playback, power consumption can not be underestimated. I have seen a report on the power consumption of LED display screens in the LED display news in 2015. The text shows the outdoor P16 display with an average power of 272W/m2, 14 hours per day, and a total area of 12 million m2. According to the standard calculation, the annual electricity consumption of the outdoor display reached about 16.7 billion kWh. According to the annual power generation capacity of the Three Gorges Dam in 2014, 98.8 billion kWh, the daily power generation is about 270 million kWh. The annual electricity consumption of 12 million square meters of outdoor LED display is equivalent to about 60 days of power generation in the Three Gorges Dam, equivalent to about 8.5 million tons of raw coal consumption and nearly 17 million tons of carbon dioxide emissions.
For the time being, there is no bias in discussing such calculations. However, it is not difficult to see from the lines. In terms of energy saving of LED displays, every company in the industry still has a lot of room for growth. [LED full color screen?]
In recent years, LED display companies have focused on the research and development of energy-saving LED displays. Many display companies in the industry have successively launched ultra-low-power, energy-saving LED products, which do not cut corners by adopting high-efficiency LED light-emitting chips; High-efficiency switching power supply greatly improves power conversion efficiency; performs excellent screen heat dissipation design and reduces fan power consumption; designs scientific overall circuit scheme, reduces internal line power consumption; automatically adjusts according to external environment changes The brightness of the outdoor led display achieves the effect of energy saving and emission reduction.
Such technology has improved energy-saving effects, but there are also many doubts in the industry, and there is no absolute sound. It can be seen that it is easier said than done to save energy in the true sense of LED display. It is difficult to do.
In terms of energy saving of LED display, innovation and improvement through technology is one aspect, but is there any way to make the LED display achieve the same energy saving effect by means other than the display screen?
Today, solar energy, wind energy, and tidal energy are considered to be the green energy with the most potential for green development. Due to factors such as technology and cost, these green energy sources are still limited in application. However, I believe that the potential of solar energy for LED display screens can still be explored. Currently, in the LED industry, solar energy and LED lighting. The combination has been recognized by more audiences and has broad prospects.
Led display and LED lighting are very different in production and application, but with the continuous development of LED display, more and more LED display enters the north from the south, enters the plateau from the plain, and enters the cold from the hot zone. Zones, different cities, different topography, different sun exposures, etc. all have advantages in solar energy development. Under the premise of continuous maturity and perfection of LED display energy-saving technology, supplemented by solar energy technology, the two will be organically combined and integrated, so that solar energy becomes a powerful supplement to the display power consumption, thus achieving the goal of reducing total power consumption.
Such an attempt seems whimsical, but under the premise of green and energy-saving as the overall goal, the LED display industry and the photovoltaic industry will form an alliance to jointly negotiate, cope with and solve relevant technical problems, so as to innovate and produce products that meet market needs and audiences. Acceptable display products are not impossible. In the future, with the continuous development of solar technology, solar airplanes and solar vehicles will appear in the future. Technology can always be broken by the first level, transforming the development concept, and truly exercising the "green" business card. LED display manufacturers still need to take bold steps and dare to try.