What Is Laser Blended Vision?

Laser projection display technology (LDT), also known as laser projection technology or laser display technology, is a display technology that uses three primary color lasers of red, green and blue (RGB) as the light source. It can most realistically reproduce the rich and beautiful colors of the objective world. To provide more powerful expressive power. ^[1] From the perspective of chromaticity, the color gamut coverage of laser display can reach more than 90% of the color space recognized by the human eye, which is more than twice the color gamut coverage of traditional displays. It completely breaks through the first three generations of display technology. The lack of color gamut space achieves the most perfect color reproduction in human history, and enables people to see the most real and colorful world through the display terminal. ^[2]

Laser projection display technology

International status of laser projection display technology

After nearly 50 years of R & D accumulation in the display field such as liquid crystal, Japan has achieved leading core technology and market position. Now it has locked the development direction of next-generation display technology to laser display technology.

In 2005, at the World Expo in Aichi, Japan, Sony successfully developed a 6-square-meter projection display system and integrated a 500-square-meter laser theater based on the splicing technology.

In February 2006, Mitsubishi Electric Corporation applied the high-power red-green-blue three-primary lasers developed by Novalux in the United States to digital optical engine (DLP) rear-projection televisions, announcing the successful development of laser rear-projection televisions that can express large color gamut colors and support Large color gamut xvYCC standard, color gamut coverage rate is 135% NTSC, contrast ratio is 4000: 1, and its image quality can exceed film quality. The three-primary color laser can remove the color wheel separation in the traditional projection, and the single-chip digital micromirror (DMD) chip without the color wheel can also have excellent color performance, and the cost and system complexity are greatly reduced. Therefore, the color reproduction capability of this laser rear projection has been recognized by the International Electrotechnical Commission (IEC). Mitsubishi Electric Corporation built a production line and launched a laser digital optical engine rear projection TV product in 2008.

In 2007, at the International Consumer Electronics Show in Las Vegas, the United States, Sony Corporation of Japan and Novalux Corporation of the United States each launched multiple laser display test prototypes based on projection laser display technology, including 55-inch laser rear projection televisions and Small, compact front projector and laser digital cinema.

In addition, Microvision, Iljin, Symbol and other companies are committed to research and development of laser projection technology applied to mobile phones. They have developed miniaturized red, green and blue three-primary lasers and miniaturized optical engine systems, and designed a complete embedded micro Projection system module. ^[2]

Domestic status of laser projection display technology

China already has a good industrial foundation in developing the laser display industry, and its production environment is leading the world. China's laser display technology has achieved significant results with the continuous support of the National High Technology Research and Development Plan and the Knowledge Innovation Project of the Chinese Academy of Sciences.

Researcher Xu Zuyan, academician of the Chinese Academy of Engineering, realized the first red-green-blue three-color laser tile-level output in China in 2002, and synthesized white light for the first experiment of laser display;

In 2003, the research and development of RGB three-primary color lasers was initially completed, and the prototype of laser display principle was launched.

In November 2005, Changchun New Industry Optoelectronics exhibited an independently developed 84-inch laser display principle prototype at the Shanghai International Industry Fair, and passed the joint scientific and technological achievements appraisal of the Chinese Academy of Sciences and the Ministry of Information Industry. The conclusion of the appraisal was: Internationally advanced, key technologies such as color gamut coverage are leading internationally. " In the same year, the laser display was included in the national medium and long-term development plan and became a key technology.

In 2006, the Institute of Optoelectronics of the Chinese Academy of Sciences launched the development of a laser display engineering machine, which successfully took an engineering step. In the same year, the company Beijing Zhongshi Zhongke, which focused on the industrialization of laser display, was established to achieve the technical, industrial, and economic phase. Combine and strengthen standardization research work;

In 2006, the laser display technology was rated as "the world's most advanced technology and the world's leading indicators" by the Ministry of Information Industry.

In 2008, breakthroughs were made in key technologies such as miniaturization of light sources, digitization of power sources, and dispersing speckles. Laser display products were successfully used in laser digital cinemas, successfully serving the Olympic Games, and became a highlight of science and technology;

In 2009, the "laser display industry base" was established, which took an important step towards large-scale industrialization. After the early technology accumulation, China has a complete independent intellectual property rights chain in the field of laser full-color display technology, especially in the all-solid-state three-primary-color laser, shimming, decoherence, laser display and other key devices and machine technology. The patent protection has a good foundation for achieving major industrialization breakthroughs in this field. As of the end of 2008, there were more than 1,000 international patents on laser display in the world, of which more than 100 were held by China. ^[2]

Laser projection TV real shot (5 photos)

Development trend of laser projection display technology

As the most promising device in the display industry, the projector has been widely used in various industries since its birth. However, due to the limitations of life, color, brightness, use cost, and environmental protection, the current lamp engineering projectors have been difficult to keep up with the times, and they are unable to meet new industry application requirements such as digital signage and control rooms. Laser engineering projectors, because of their rich and saturated colors, high brightness, long life, low cost of use, and high environmental protection, have become the fuse that triggered the revolution in projection and display technology.

I. Higher brightness

At this stage, the demand for high-brightness projectors in the Chinese market is growing rapidly. Relevant data shows that as early as 2012, the annual sales of products with more than 5,000 lumens were about 40,000 units, a growth rate of 40%. This market was originally monopolized by European, American, and Japanese brands, but in the past three years, the national brand Sinolaser has risen differently. With the local advantages of cost-effectiveness and marketing, it has cooperated with Barco and Christie. Form a rivalry.

Highlighting is still the main direction of laser projection technology innovation. The highlight here is not only that in the field of high-end engineering projectors above 10,000 lumens, projection manufacturers will launch more products; it also includes existing business education and home product lines, and projection manufacturers will also launch a number of price points Products with similar positioning but improved brightness. At the same time, the development of laser technology will also make 4000 to 5000 lumens products "universal" products, and say goodbye to the traditional "high-end product series."

Laser technology has a comprehensive improvement in the brightness of the projection industry: from micro-projection to digital cinema projectors, products from less than 1,000 lumens to products with 40,000 lumens will benefit from it.

From CES to infoComm to BIRTV, laser projectors have appeared in high profile to the public. Barco showed a 55,000 lumens laser projector, followed by Christie's launch of the world's brightest 72,000 lumens laser projector; and Divis Video Holding's subsidiary, Zhongshi Diwei, has also created the world's first 4K class 50,000 lumens laser projection system. .

Second, higher resolution

Recently, according to foreign media reports, after years of experiments, NHK and JVC officially launched the first laser 8K ultra-high-definition projector, which will bring new development opportunities to the projection industry.

It is understood that the first laser light source 8K projector jointly launched by JVC and NHK has a high brightness of 8000 lumens and uses LCOS display technology with a resolution of 7680 × 4320 and a contrast ratio of 5000: 1, and is fully compatible with a 120Hz refresh rate. However, since it is a new product and has not yet been officially released, not much information has been disclosed.

According to the roadmap released by the Japanese government, NHK will launch the first lesson test satellite in 2016, and will realize the 8K live broadcast of the Tokyo Olympics and Paralympics in 2020. This may be the first year of popularity in the 8K era.

In fact, as early as 6 years ago, Evans & Sutherlands, the father of computer graphics and the father of virtual reality, Ivan Sutherland, developed a "revolutionary" 8K projector model ESLP with 8K for professional applications. Resolution, and uses a very unique laser light source projection technology. The ESLP8K projector uses NanoPixel laser technology, but this technology is currently mainly used in astronomical research and display systems.

Product differentiation

Even more exciting is that laser projectors will create more new applications, and the advertising industry in the commercial field may be the first breakthrough. The commercial field has the most demanding requirements for display equipment. It is hoped that the product will have excellent imaging, long life, low power consumption, and maintenance-free characteristics. Laser projectors fully meet this demanding requirement. Most importantly, designers in the advertising industry are always looking for the perfect display method that can carry creativity. They need interactive, transparent, curved display devices. They need to project pictures on the floor, window or even buildings. Laser projectors have really helped them realize their dreams.

At present, the product problems that restrict the popularization of laser projection in a wider range also include the problem of "product volume". The laser projection market lacks lightweight products, while lightweight products are more popular in the business, education, and home markets. How to further break through and reduce the volume of the product to achieve the same brightness and volume of the laser projection and the mercury lamp projection is one of the forefronts of technology research in the industry.

Refined aesthetics replace the traditional "professional aesthetics", which is the common development direction of projection in almost all product areas. Focusing on the reduction and refinement of product volume has constituted the main aesthetic direction of "industrial design" for at least 10 years in the projection industry. Now, such industrial accumulation will be inherited by emerging laser products. I believe there will be new breakthroughs in laser products in the direction of miniaturization and special-shaped products.

Judging from the current development trend, although LED has occupied the high position of the market, the industrialization of laser display technology is an irreversible fact. It is believed that the laser display era will come soon in the next three to five years. ^[4]

Prospects of laser projection display technology

Due to the advantages of laser light source projectors in terms of color, brightness, and long life, the technology has developed rapidly. The core and key technologies of laser display technology have achieved localization and technological breakthroughs, achieving high-quality image effect demonstration. At the same time, internationally, practical technology research required for large-scale production is being carried out, and it is in the introduction stage in the product life cycle.

Laser display technology is the next generation display technology, and its application field is extremely wide. Laser display products will open up various markets with new-generation display technology and form a large-scale industry. It is expected that the annual output value of the laser digital cinema application market, the large-screen command application market, and the high-end consumer market will show a geometric progression. Create huge market and economic benefits.

Laser digital cinema is an area where large-screen laser projection can be the first to be applied. International digital film international standards will be introduced. The global digital cinema market demand will reach billions of dollars, and the industry has a bright future. China's digital cinema industry is in an experimental stage. The large market capacity and the current market status is the broad market of laser digital cinema. With the technological breakthrough of the core source of laser digital cinema, China's digital cinema cinema hall is fully equipped to carry out Laser digital cinema upgrade possibilities. In addition, the laser display technology will cause huge changes in civil market applications such as large public information screens, astronomical observations, and water curtain imaging performances, and the market is extremely broad. ^[2]

Water curtain laser projection