Since its invention, the laser has been widely used in various industries, such as the laser projection industry. The laser projector uses a laser beam to transmit the picture. The optical components of the laser projector are mainly composed of a red, green and blue light valve, a combined X prism, a projection lens, and a driving light valve. There are red, green and blue lasers in the laser projector. The laser is expanded by the corresponding optical elements and processing chips in the machine and then transmitted to the X prism to integrate the three laser beams, and then the integrated laser is transmitted to the projection screen by the projection objective lens to complete the entire laser projector display process . Advantages of laser projection technology We know that the current mainstream projector solutions are DLP and 3LCD, among which 3LCD is a three-color liquid crystal panel of red, green, and blue, which is magnified by a lens and transmitted through a mirror. The DLP working method mixes the colors after light is rotated at a high speed through the color wheel. Finally, it is transmitted through the prism. Although each has its own advantages, it should be noted that both of these methods require the use of light bulbs. The light bulb has a life span, and the brightness and color purity of the screen can only be regarded as relatively sufficient. The laser projector is to make up for the shortcomings of the 3LCD and DLP projection methods. That is, the working life is long, and it will not be The concept of laser projectors has been said for many years, and related products have been marketed and applied in real life. Such as the outdoor projection display of the stadium of the 2008 Games and the display application of some movie theaters. However, laser projectors are rare in the office, education, and home entertainment markets. The overall performance of laser projectors is very good. Laser projectors with few products in the retail market have been around for many years. It is not a new technology, and it is very mature in all aspects. At the same time, the Mitsubishi laser TV with the same working principle was launched this year, and BenQ also launched a laser projector. It can be seen that more and more companies are focusing on laser applications. The author believes that the future development of laser projectors will definitely do a lot. Laser TV is a major application of laser projection technology Laser TV is composed of a laser light source projector and projection screen using reflective ultra-short throw projection technology, which can show a good picture even in a high-brightness environment. External laser TVs are generally equipped with smart systems, and the hardware inside is basically the hardware used by smart TVs. The Android system cooperates with some Mstar chips to realize functions such as online playback of blockbusters, and can also play games, download applications, and so on. From the industry's exhibition, laser, 4K, AV, etc. are the most eye-catching highlights in the audio-visual industry. It can be seen from the comprehensive use of laser as the projection light source by LCD projection manufacturers that although their own advantages are irreplaceable in their respective fields, the unavoidable laser light source is an inevitable trend accepted by all manufacturers and users. In the popular consumer concept, the concept of flat-panel TVs is still deeply rooted, and the projector is, to a certain extent, still a "spring and snow". However, we can analyze from the data of online shoppers of flat-panel TVs that both the proportion of projectors purchased at the same time or the proportion of projectors searched at the time of purchase are increasing year by year. This reflects to a certain extent that people are paying more and more attention to projectors. Due to the shortage of production lines, the laser machine cannot be reduced in price in a short period of time, and people's lack of popularization of projector knowledge, etc., although the obstacles exist, its progress is still bright.
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