In the past two years, the price of projectors has generally dropped, especially household projectors launched a variety of 10,000-level products in 2010, which has opened the road to popularization of the household projector market. The promotion of 3D technology has also given the home projector industry a new growth engine.
For many consumers who want to buy a home projector, they want to watch movies and play games in their own homes. The super-large screen can feel the cinema-like visual experience. Therefore, everyone has high requirements for the color and clarity of the picture. Faced with the products with rich brands on the market, how should we choose?
For the projector, different projection technologies have a big difference in the projected image quality. According to their different needs, you can choose products of different technologies. There are three major technologies in current home projector products, including DLP, 3LCD and LCoS, each of which has its own advantages.
Below, I will introduce the advantages and disadvantages of the three projector technologies, so that when you choose a home projector, you can choose according to your needs.
DLP technology has the greatest price advantage
The DLP technology developed by Texas Instruments has grown rapidly in market share in recent years, and products have occupied a large market share in the low-end market due to its price advantage. At the same time, in the high-end projector market, such as 10,000 lumens or more, dual-lamp, four-lamp and other engineering projector industries, it also has an absolute advantage. In the home projector market, DLP also continues its price advantage, from 720p projectors to 1080p projectors, which are very competitive in price.
DL technology first is to realize the pink color of the light source through a high-speed rotating color wheel, and then project it onto the DMD chip. DLP chip of DLP technology, there are thousands of 16 × 16um miniature lenses on it, through the closure of the micromirror, to achieve the change of the picture. Due to the use of reflective technology, the utilization rate of the light source is high, and the achievable brightness is also high.
Advantage:
Low cost, most of the current low-cost 1080p projectors are products using DLP technology; high contrast and sharpness of the picture; the internal structure is simple, the body can be made very compact; the internal optical machine is fully sealed, can Prevent dust from entering, dustproof and heat dissipation are better.
Disadvantages:
The color is poor. Among the three technologies, the color saturation is the lowest.
The entry-level 1080p projector mainly uses DLP technology, and the market products are mainly concentrated in the price of about 8,000 yuan. Representative products include BenQ W1000 +, Luxeon H1085 and other products, the market price is generally around 8-9 thousand yuan. Because of its low price, it is also loved by many working class.
3LCD technology has excellent color and mature technology
3LCD technology is currently the most mature projection technology in the projector market, with the highest market share. Its core technology patents are owned by Epson and Sony, and most of the chips for 3LCD technology projectors on the market are manufactured by Epson.
3LCD technology uses a dichroic mirror to decompose the white light emitted by the light source into RGB (red, green, and blue) light beams. The three color beams respectively pass through their respective liquid crystal panels, and then re-synthesized through the prism and projected onto the screen.
Advantage:
3LCD projector has good color, mature technology and high stability; cost is higher than DLP technology, but lower than LCoS technology.
Disadvantages:
The contrast is low, and the high contrast of home devices mainly refers to the dynamic contrast, and there can never be a big breakthrough in the acoustic contrast.
The price of entry-level products is mainly concentrated at around 15,000 yuan, and the selling price of mid- to high-end products is 20,000-50,000 yuan. Representative products Epson EH-TW3300C, 3LCD technology in the entry-level 1080p projector market, very few products, after Epson launched this EH-TW3300C in the market has been very popular, resulting in a serious shortage in the market, has not been resolved.
LCoS technology has excellent color and high contrast
LCoS technology has a history of many years, but due to the high cost, there has not been much development. Only a few manufacturers of high-end home projectors apply this technology. In the home projector market, only a few manufacturers such as Sony and JVC adopt LCoS technology. Since LCoS technology is an open technology, manufacturers each named their own developed LCoS technology. Sony's SXRD technology and JVC's D-LIA technology are both LCoS technology.
Unlike the first two technologies, LCoS technology is a liquid crystal reflective chip that integrates the advantages of 3LCD technology in color and the advantage of high light utilization rate of DLP technology. It has the advantages of good color, high contrast and high brightness. However, the high cost of LCoS technology is mainly due to the small number of products. The entry-level products are priced at around 20,000 yuan.
Advantage:
High color saturation; high native contrast; high light utilization.
Disadvantages:
The low yield rate and complicated manufacturing process result in high product prices, small market share, and few products to choose from.
Products using LCoS technology have higher prices, and the lowest 1080p products should be more than 20,000 yuan. Representative products include Sony VPL-HW20, JVC DLA-HD350 and other products.
How do different users choose?
At present, the mainstream projection technologies on the market are the above three. In terms of home appliances, DLP projection technology has a high share, and its low price is the main reason why it is favored by many consumers. The brightness is higher and the sharpness of the picture is higher, which is more suitable for entry-level users, watching movies and playing games.
The market share of 3LCD technology products is second, mainly because of its higher price and fewer products for low-end users. Only 3 manufacturers of 3LCD technology home projectors are Epson, Mitsubishi and Panasonic. Many high-income people have high requirements for the quality of the film, especially for the color expression of the picture. They will choose 3LCD technology products.
But in the LCoS technology market, there are fewer products, the price is high, and it is rare in the market. It can only be seen in some high-end home theater design companies, and the products are also mainly used in professional home theaters built under the environment of villas and mansions.
Write at the end:
The three different technologies have their own advantages and are also aimed at different user groups. For the average user, if you want to experience the feeling of a big picture in a movie theater, just select the entry-level DLP projector. If you have high requirements for picture quality, then 3LCD technology is your best choice. If you want to set up a professional-grade theater, then LCoS technology products must be the best choice.
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