On February 20, the closing ceremony of Beijing 2022 Winter Olympic Games will be grandly held in the National Stadium. The Olympic creativity in the opening ceremony will also run through the closing ceremony.
At the opening ceremony of the Beijing Winter Olympic Games, the ice cube, ice waterfall, five rings of ice crystals and the giant "snowflake" shaped main torch platform surprised the world. Behind it, it is inseparable from the continuous innovation and progress of display technology, especially LED display technology. LED display is not only the "hero" behind lighting up and beautifying the Winter Olympic Games, but also the "witness" of the successful holding of the "double Olympics" in Beijing and the leapfrog development of the display industry.
LED display turns "flying horses" into reality
The opening ceremony of the Winter Olympics held at the National Stadium "bird's nest" 16 days ago is still fresh in people's memory. Whether it is the ground screen, ice cube, ice waterfall, north-south stand screen, ice crystal five rings and giant "snowflake" shaped main torch platform on the opening ceremony stage, there are led display figures. These LED display technologies and products come from many Chinese display enterprises, including Leyard Optoelectronic Co.Ltd(300296) , BOE, Unilumin Group Co.Ltd(300232) , Ledman Optoelectronic Co.Ltd(300162) .
The reporter learned that the LED ground screen in the opening ceremony stage has a total area of more than 10000 square meters and is divided into four 8K playback areas, which are composed of more than 40000 50 cm square unit boxes. It is the largest LED ground stage in the world and the largest 8K UHD ground display system. Compared with the ground screen picture of the 2008 Beijing Summer Olympic Games, the LED ground screen of this winter Olympic Games has made progress in two aspects: first, the resolution of LED display screen has been greatly improved, and the pixel spacing of LED screen has been shortened from 20mm to 5mm Second, the protection level of LED display screen has been greatly improved. Each LED module can withstand the test of rain, snow, hot sun, sand and cold.
Liu Haiyi, general director of the Winter Olympics project of Leyard Optoelectronic Co.Ltd(300296) group, told the reporter of China Electronics News that the ground screen is a special LED display system specially customized for the opening ceremony of the Winter Olympics. Compared with the technology in 2008, Leyard Optoelectronic Co.Ltd(300296) the LED display and its components provided for the opening ceremony of the 2022 Winter Olympic Games meet the IP66 protection standard, which can completely prevent the invasion of foreign objects, and the water inflow of electrical appliances will not have a harmful impact when subjected to strong water spray. In addition, the LED ground screen display panel is also equipped with anti glare, anti moire and anti-skid atomization mask, which has a soft display screen and provides a pure video display screen without clutter and interference in the full focus section for camera broadcasting.
"The giant 'picture scroll' at the opening ceremony of the 2008 Olympic Games was an LED screen. At that time, Zhang Yimou's team had a fierce debate about whether to use or not to use the LED display screen, because the LED display technology at that time was not mature enough, and the picture flickered and black screen often appeared. The director team of the 2022 Beijing Winter Olympic Games can safely and boldly use the LED light display technology." Yuan daoren, vice president of sales and service of Zhouming group, said in an interview with China Electronics News.
Yuan daoren told reporters that the Beijing Winter Olympic Games, as a grand event attracting global attention, the LED ground screen needs to be extremely reliable and stable. Zhouming produced and prepared goods according to aerospace standards, and achieved dual power supply, dual lamp and dual screen backup of LED ground screen. Generally speaking, each LED module is actually composed of two screens AB, a screen + B screen to form a complete screen, that is, a dual screen system. Suppose there is a problem along the way and the other way is immediately on top to ensure that the performance is foolproof. Finally, we successfully completed the design of dual lamp and dual screen backup as required, and applied for the design patent of dual lamp and dual screen.
The crystal clear ice five rings are 19 meters long, 8.75 meters high, but only 35 cm thick. Its interior is composed of 360 ° non dead angle led special-shaped screen, which can realize the display of any picture and leave the maximum creative space for the director team of the opening ceremony. Ledman Optoelectronic Co.Ltd(300162) and its subsidiary Kang Shuo exhibition participated in the design, R & D and manufacturing of special-shaped LED display screen at the opening ceremony of 2022 Beijing Winter Olympic Games, including the important dance props at the opening ceremony - LED ice crystal five ring display screen.
The technical director told the reporter of China Electronics News that the creative design of LED ice crystal five ring dance beauty is the first in the world, and there is no similar design as a reference. The overall effect of LED display screen is beautiful, prudent, distinctive style, rich image levels and uniform colors; After the five ring screen is evenly polished through the diffuser skin, the display effect of ice crystal five rings is achieved. A remarkable technical feature of ice crystal five rings is the use of hollow lamp board design, which not only reduces the overall weight of LED display screen, but also provides solid basic conditions for lamp board installation, diffusion board installation and heat dissipation. The total weight of LED display screen is only 700 kg.
The "snowflake" shaped main torch platform is another highlight of special attention during the Winter Olympic Games, in which led display is also used. With a diameter of 14.89 meters, the main flare platform is composed of 96 small snowflakes and 6 olive branch led double-sided screens. It adopts double-sided hollow design and is embedded with more than 550000 LED light beads. Each light bead is independently controlled by a single channel of the driving chip.
The reporter learned that the main torch platform in the form of "snowflake" is independently developed and designed by Beijing Orient Group Incorporation(600811) , whether it is the overall hardware support or the software system. In order to meet the requirements of the director group for the torch stage and meet the creative concept of "shining like a diamond", BOE's core R & D team has developed the single pixel controllable special-shaped display product with the narrowest luminous surface in the industry through more than 500 design drawings and nearly 10 rounds of sample preparation, which fully presents the line feeling of snowflakes and exquisite picture display effect, Successfully turn the artistic creativity of the director group into reality.
Olympic Games promote the leapfrog development of LED industry
It is understood that led application began in the late 1980s, but it is the 2008 Beijing Olympic Games that really promote the development of the whole LED display industry.
Liu Haiyi told reporters that the original LED display screen mostly serves some large-scale public facilities or specific industries such as the transportation field used for passenger flow guidance in airports and railway stations. Since the 2008 Beijing Olympic Games, the whole LED industry has risen to a higher level, LED has begun to get attention in the world, and finally led has amazed the world again at the 2022 Beijing Winter Olympic Games.
"We successfully fought a hard battle for the light display service participating in the opening ceremony of the Beijing Winter Olympic Games!" Yuan daoren told China Electronics News that Zhouming received the production task of floor tile screen at the opening ceremony of Beijing Winter Olympic Games in early July 2021. The time is tight and the task is heavy. The key is not to have problems. Yuan daoren said that since receiving the task, the company has set up a project team within the company. From product R & D, production, material support to logistics services, all departments work together and cooperate closely. It took only 45 days to complete production and delivery.
"The successful hosting of the Beijing Winter Olympic Games really attracted the attention of the world and far exceeded expectations. For Leyard Optoelectronic Co.Ltd(300296) group, the industry has praised us as an" enterprise of double Olympics ", and I am particularly honored to be a" person of double Olympics ", because I personally watched the display of the giant picture scroll of the 2008 Olympic Games and the rise of the dream five rings.
From 2008 to 2022, I really feel very proud and beautiful! " Liu Haiyi told reporters.
"Driven and catalyzed by the Winter Olympics, the display industry is ushering in an unprecedented golden period of development." The technical director of Ledman Optoelectronic Co.Ltd(300162) told the reporter of China Electronics News that in recent years, Chinese display enterprises have completed display support projects for major events and activities outside China, including the African Cup, the world cup in Brazil and the Sochi Winter Olympics. These cases not only enhance the brand awareness of Chinese display products in the international market, but also reflect the comprehensive strength of Chinese display enterprises Professional ability is widely recognized in the international market. The software and hardware facilities used in China's top events and competitions can basically be produced nationwide, and China's technology and equipment are at the leading level.
It is understood that with the continuous strengthening of technological innovation of Chinese display enterprises, at present, China's Micro led, ultra-high definition display and other technologies have made breakthrough progress, the technical level is basically synchronized with the international level, and new products are constantly coming out.
"China's LED display industry is standing at the tuyere of micro led ultra-high definition display, especially 8K ultra-high definition display. In the future, Chinese enterprises need to pay attention to the cultivation of independent brands and market innovation management while paying attention to their own development. At the same time, we should strengthen industrial cooperation and different industry cooperation and take the road of comprehensive and multidimensional development." Insiders told the reporter of China Electronics News.
