The micro-projector product has the same compact size as an MP4 player, and can easily project 12 to 30 inches on the wall. Although the micro-projection products have not yet entered the mass production stage, they have not really entered the hands of consumers, but After several years of development, we have now seen the dawn of practical prospects for pico projectors.
At the international consumer electronics show in recent years, several equipment manufacturers have launched more and more excellent micro-projector components and accessory products, especially at the CES2008 show in Las Vegas, USA, at the beginning of this year. In the field of micro-projection, not only the products have diverse performances, but also the innovation in display technology. The eye-catching LCOS micro-panel products have made the industry more confident in the practical performance of micro-projection. In addition, the development of DMD display technology and the improvement of LED light source technology have made the prospect of micro-projection display more worthy of expectation.
The micro-projection market is hot, and the technical sects are raging.
The liquid crystal silicon LCOS technology micro-projection element, which was just launched a few months ago, has attracted attention because of its miniaturization and cost advantages, which is conducive to the popularity of micro-projection equipment. This technology is introduced by Displaytech, a specialized display device manufacturer in the field of micro-projection. Compared with other micro-display technologies, LCOS technology micro-display system MEMS has excellent cost control, and there is still much room for improvement in display effect. According to the current competitive situation, the author believes that in 2008, micro-projection display device manufacturers and integrators will face the choice of technology application, and now the LCOS micro-display technology that is highly hopeful, including the current mainstream DLP technology and LCD technology. A variety of micro display projection technology solutions.
Texas Instruments' DLP technology is currently widely used in projection and large-screen display products. The display of millions of small mirrors on the chip can be excellently displayed through digital control. In addition, there is a powerful competitor, Microvision. Its single-chip LCD projection products have also been available in more mature prototypes.
In the current competitive situation similar to the "three countries", there is no manufacturer that can claim the technical strength of "unification of the rivers and lakes". The author believes that perhaps until the 2009 consumer electronics exhibition, many miniature projection equipment manufacturers show The latest series of products, LCOS, DLP and LCD microdisplay technology who can take advantage of it can get the answer.
Comparison of the advantages and disadvantages of the three "main forces" of micro-projection display technology
From a completely technical level of analysis of microdisplay projection components, it can be seen that Displaytech's LCOS microdisplay technology differs greatly from TI and Microvision's microreflective components in principle. LCOS microdisplay component solutions are less expensive, using LED light sources and low-cost LCOS panels, but the problems they face today are also here, which takes time and cost to build a production line capable of mass-producing miniature LCOS chips. And only with a relatively continuous and large number of chips, the cost of LCOS microdisplay components will really reach the expected position.
During the period when LCOS microdisplay technology needs to be developed, competitors TI and Microvision are likely to develop their micro-reflective projection chip products to be smaller, cheaper and have lower energy consumption. The advantages of such LCOS microdisplay chips are also It has disappeared and will inevitably fail in the application of terminal products.
Looking at Microvision's LCD microdisplay chip, it seems that it has encountered bottlenecks in miniaturization, low energy consumption and cost reduction. It is difficult to obtain pioneering development. If it is really close to the bottom line of technological development, Now look at the future development of micro-display in the field of worry.
In comparison, TI's DLP microdisplay technology has encountered some problems, including the larger size of the chip and the higher cost. At the same time, the energy consumption is the highest, because its millions of microchips need to be larger. Driven by space and energy consumption; but the advantage is also the most obvious. The prototype using DLP micro-display technology can bring the best projection picture effect at present, and it is a prototype that is close to mass production, so it is also the best possible first. Appear in the hands of consumers.
The FLCOS technical component tilted the competition balance
Displaytech recently demonstrated its unique patented FLCOS technology, which was previously used in camera monitors and has been applied to more than 18 million handheld devices. Therefore, it has a certain practical ability and mass production level, and Displaytech has named FLCOS display technology as LightView technology application and micro projection product. At present, it has joined 16 equipment manufacturers to launch a variety of FLCOS micro projection display products. Among them, 4 prototypes have appeared at CES2008. I believe there will be more different styles of FLCOS micro projections in this year. Product debut.
The FLCOS micro display technology panel and the LCOS panel also use the multi-channel time division technology to convert monochrome images, and can perform 360 red, green and blue primary color conversions per minute. This color conversion capability is twice that of ordinary TV signals. The LCOS microdisplay chip with red, green and blue pixel filters on the black backplane has better brightness performance and corresponding time than TFT LCD panels.
The FLCOS chip replaces the filter with a red, green and blue LED component with higher brightness and lower power consumption. The LED can simultaneously display the picture signal without delay, and the cost is also reduced. FLCOS technology has a lot of application experience, so it has advantages in manufacturing capabilities, application stability, and product cooperation applications. We can see that this technology is currently the most promising micro display projection technology.
Written in the end: We can see that the competition of products is traced back to the competition of core technologies. The performance of microdisplay projection technology in the market is gradually hot, and the development of technology has reached a certain stage, although it has not matured yet. The product is available, but the author believes that this stage is the key period for the first round of elimination in the industry. Display technology and related products with high cost, unreasonable technology and poor performance will be stopped by the core enterprises and compete in the next round of products. Lieutenant will not see the figure of the knockout, of course, this is also the inevitable development of display technology.
Now, LCD microdisplay technology is facing a big dilemma because its characteristics are not clear. DLP micro-display technology has both good effects and high cost. The mass production should not be a problem; FLCOS micro-display technology is currently Regardless of the current performance or development expectations, it is worth looking forward to. In fact, it is still too early to make a conclusion. Even the most comprehensive FLCOS technology is not likely to be the final terminal market winner. The development of technology is very rapid. Perhaps only the product really reaches the user's hand. We can really judge the perfection of technology and the pros and cons of products.
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