According to China news network, there is a high-tech “snow screen” in China’s national ski jumping center called “xueruyi”, which is a panchromatic laser projector jointly developed by Hefei panchromatic light display technology Co., Ltd. and the University of science and technology of China. During the Beijing Winter Olympic Games, it will project thousands of square meters of projection screen on the snow of “xueruyi”.
According to the understanding of “Winter Olympics” special technology, the use of “Winter Olympics” is one of the key technologies of “full-color projection” screen. The project uses two 100000 lumen ultra-high brightness high-definition laser projectors to project onto the middle snow surface of the ski resort at the end of the platform, with a projection display area of more than 1000 square meters. Compared with ordinary projection, panchromatic laser projection has the advantages of wider color gamut, higher brightness, healthy eye care and low energy consumption. Therefore, it was adopted by the Winter Olympic Games to show the latest achievements of China’s display technology.
Coincidentally, another light and shadow show based on laser projection technology was staged in the Forbidden City recently. The cooperation project between liangye technology group and the National Palace Museum – “the immersive light and shadow interpretation of” lanterns and colorful “palace lanterns, a treasure of the National Palace Museum – around the Palace Museum’s collection of palace lanterns with three themes of longevity, wedding and Spring Festival, the light and shadow interaction technology is combined with real-life drama performance to integrate palace lanterns, stories and scenes. Under the background of the palace wall of the Forbidden City, each scene is separated and reconstructed by multiple curtains, which are projected on different levels of screens by projection and light effect, creating a progressive depth of field environment. The projection system composed of 38 engineering laser projectors and 2 projection lamps, combined with palace lantern collection, real person physical interpretation and LED large screen, creates an all-round immersive experience.
the competition for the next generation of display technology is fierce, and the laser display has killed a sky
In the competition for next generation display technology, OLED, qled, mini led, micro led, laser display and other technology paths show their unique advantages in different application scenarios. Laser display technology solves the problem of image high fidelity reproduction. It is understood that the laser has narrow spectral width, good directivity and high power. It can be accurately controlled in the best visual perception area of human eyes, and it is easy to achieve 8K high resolution and high contrast. These characteristics cannot be possessed by all other display light sources at the same time; Another advantage of laser display is high viewing comfort and eye protection, because it is diffuse imaging, full pixel luminescence and no short wave blue light.
In terms of policy support, in 2021, laser display, new display and third-generation semiconductor will be included in the key projects of the 14th five year plan, such as “new display and strategic electronic materials” of the Ministry of science and technology.
It is worth noting that laser projection is not limited to commercial and engineering purposes. In recent years, with the trend of miniaturization and intelligence of laser projector, as a new display technology, it has gradually entered the vision of consumers. The main carriers are laser TV, intelligent micro projector and other products.
From the sales data of projectors, driven by the promotion festival of the double 11 year in November last year, the sales volume of the industry’s online market increased by 286% month on month and 30% year-on-year. The sales volume of that month exceeded 500000 units for the first time. In the previous November, the total online sales volume was nearly 3.4 million units, with a year-on-year increase of nearly 30%.
At the end of the market pattern, in November, the proportion of DLP increased by 24pct to 68% month on month, of which the brand concentration is expected to increase significantly due to the impact of promotion festivals, CR3 increased by 11.3pct to 81.2% month on month, Jimi still ranked first with 40% + share, and fengmi returned to the top 10; The LCD market pattern changed greatly. Xiaoming’s sales volume quadrupled month on month, and its market share increased by more than 6pct month on month, rising to No. 2 from No. 8 last month.
price restricts the development of the industry, reducing cost and self-sufficiency of parts become the key
Although the laser projection display market has grown rapidly in recent years with its advantages of large screen and eye protection, it still has certain disadvantages compared with the traditional liquid crystal display – the price of laser TV sold with anti light screen is basically more than 10000 yuan, which undoubtedly restricts the popularity of laser display in the home market.
The high price of traceable laser display products is a major reason why foreign manufacturers control the upstream core devices. According to the Appotronics Corporation Limited(688007) prospectus of Kechuang board company, in 2018, light and machinery accounted for 59.8% of the cost of laser TV; Further, from the perspective of the whole laser TV set, since the cost proportion of the laser light source in the optical machine is as high as 67%, its cost proportion in the whole laser TV set is also as high as 39.9%. The suppliers of laser light sources and imaging chips, which are important core components of optical machinery, are mostly foreign manufacturers, monopolizing the supply of patented technology and core components, pushing up the product cost.
In addition, from the perspective of laser light source, the main suppliers of red light LD (laser diode) are Japanese Sony, Hitachi, etc; Blue and green light LD are basically monopolized by Japanese manufacturer Nichia chemical. In addition, DLP technology is currently the most widely used in laser projection. It is an all digital reflective projection technology created by Texas Instruments Based on its DMD chip. The supply of its DMD chip is also monopolized by Texas Instruments.
However, Huachuang Securities pointed out that at present, Chinese manufacturers have made great breakthroughs in lenses, anti light screens and other devices. With the further layout of core devices such as lasers by Chinese manufacturers and scientific research institutes, exploring the feasibility of LCOS replacing DLP technology path, combined with the popularization and promotion of national policies, and based on the innovation of the underlying technical architecture of leading enterprises in the industry, it is expected to realize the localization substitution of the whole industrial chain of laser display and accelerate the popularization of the terminal market as soon as possible in the future.
