Laser display development status and technical characteristics
Development status of laser display technology at home and abroad Overview of the development of international laser display technology In 2002, the worldwide display market sales were about 50 billion US dollars, and it is expected that the annual sales will reach 500 billion US dollars by 2026. Because of such a huge market, countries such as Japan, South Korea, and the United States have invested a lot of manpower and material resources in the development of laser display technology, intending to compete for the international market of next-generation display devices. The Japanese industry, which had taken the lead in the development competition of LCD, PDP and digital TV, called the laser display technology a revolution in the history of human vision. The Japanese government attaches great importance to laser display technology, and is now accelerating its development with national strength, intending to maintain its status as a big country in the display industry. Representative research work includes Sony Corporation of Japan, Mitsubishi Electric Corporation of Japan, Samsung Electronics of South Korea, LG Corporation and Laser Power Corporation of the United States. In 1985, at the venue of the Tsukuba Expo, Sony arranged a giant TV wall with a height of 25 meters and a length of 40 meters in a CRT arrangement, which caused a strong response. At the 2005 World Expo in Aichi, Sony Corporation of Japan launched a house representing the earth, the latest laser display system at the time. With a length of 50 meters and a height of 10 meters, the entire spherical screen is seamlessly spliced. At the same time, based on the splicing technology, a set of 6m2 laser theater with a total area of ​​500m2 is integrated. The audience can see the slow-moving fin whale of 30 meters on the screen. This advanced display technology application takes the World Expo as an opportunity to show the world the most cutting-edge achievements of Sony Corporation of Japan; February 2006, Mitsubishi Electric Announced the successful development of laser rear projection TV, color gamut coverage of 135% NTSC, contrast ratio 4000: 1, and plans to build a pilot production line, is expected to be put into production around 2008. In March 2006, Seiko Epson Corporation of Japan announced a strategic cooperation with Novalux of the United States to jointly develop laser display technology and is expected to enter the home display market around 2012. In history, Sony ’s color TV display system, Nishitetsu Seiko watches and other products have been widely recognized by the world by the opportunity of the Olympic Games, forming a century model of high-tech applications. Current status of domestic laser display technology China has a very solid foundation in the research of laser display technology. Through the careful deployment of scientific programs such as the National 863 Program, a complete technical chain from core optical materials and devices, semiconductors and all-solid-state lasers to the integration of the whole machine has been established, which has laid the technical foundation and good foundation for China's independent development of next-generation display technology. Development Environment. During the National 863 Fifteenth Plan, under the guidance of Dean Cao Jianlin and Academician Xu Zuyan, the Research Institute of Optoelectronics of the Chinese Academy of Sciences focused on large color gamut and large screen laser display technology, and successfully developed 60-inch, 84-inch, and 140-inch And 200-inch large-screen laser display prototype, related products have won many awards at the domestic professional technology exhibition and display technology exhibition, and have been widely praised by industry insiders. On January 10, 2006, the result of the joint scientific and technological achievements appraisal of the Chinese Academy of Sciences and the Ministry of Information Industry was that the overall technology was internationally advanced, and the color gamut coverage and other technologies reached the international advanced level and had a good research foundation. China ’s patents account for 30% of the world ’s total patents, which are related to the main key links of laser display, and have advantages in laser devices, shimming, decoherence, and machine technology; of which, the project bidder has more than 75% of domestic laser display patents , Occupies an absolute leading position in the domestic laser display field. Three advantages of laser display 1. Large color space At present, the color reproduction capabilities of display devices such as CRT, LCD, PDP, DLP projectors, and movie projectors that are currently on the market have not broken through the color space of the NTSC system, and the color gamut space can only cover the color space recognized by the human eye. 31.8%, it is difficult to truly restore natural colors, this deficiency has become an important obstacle to further improve the display quality. Compared with the traditional light source in terms of color gamut, LED is a good light source technology, but due to its characteristics of flood lighting, the lack of high brightness and large screen display greatly affects the application space of LED in projection display technology. The difference is that the laser has a very high intensity, which provides the basis for high-brightness, large-screen and super-large screen displays. Laser light source is the best light source to meet various high-end display requirements. Therefore, the industry calls laser display technology "a revolution in the history of human vision." 2. Long light source life The laser generates single-wavelength visible light, and the electro-optic conversion efficiency is greatly improved compared with the traditional display light source, avoiding the shortcomings of excessive heat dissipation of the traditional high-power light source. The laser light source has a long service life, which can be as long as ten years, which is equivalent to ten to twenty times the life of the traditional light source. In the long run, the cost of use is significantly lower than the traditional high-power light source that is currently used, and the overall cost performance of the product is significantly higher than the traditional The product is easy to maintain and the overall maintenance cost is low. 3. Significant environmental protection and energy saving As a new generation of display technology, laser display has excellent low energy consumption characteristics. Based on 10 million flat-screen TVs working 4 hours a day, the annual power consumption amounts to 2.9 billion kWh. If these households use more energy-efficient laser TVs, they will save 2 billion kWh per year, which is nearly the sum of the annual power generation of several large thermal power plants , Equivalent to a reduction of 1.73 million tons of carbon dioxide emissions per year. At the same time, the core components of the laser display do not use any heavy metals in the production process, and there is no waste water, waste gas, waste discharge. It is a veritable environment-friendly display light source. Brown Bottom Bag,Brown Square Bottom Bag,Cost Square Bottom Paper Bags,Food Grde Bottom Kraft Paper Bag JINAN XINSHUNYUAN PACKING CO., LTD , https://www.xsy-packaging.com