Fundamental 80% of human access to information from the outside world comes from vision, so displays are an important way for modern people to obtain information. Display technology is an important development direction in the information field. Laser A laser always emits light of a defined wavelength and color, and a red, green, and blue color can be generated by mounting a special crystal or light guide in front of the laser, and then the laser is converted into a desired color by so-called focusing in these materials. During the screening, the red, green and blue data are sent to the modem inside the laser unit, and the video data is converted into optical information by amplitude modulation, and the three-point rays with red, green and blue lines are combined into a single laser beam, and the laser containing all the image information is included. The bundle is then sent to the projection head through the fiber optic cable and finally projected onto the screen. how to work? The principle of laser TV composite images is similar to that of television sets. The laser beam is "swept" from top to bottom and from left to right. Horizontal deflection (line scanning) is achieved by a multi-faceted rotating mirror in the projection head, and vertical deflection (frame scanning) is achieved by a tilting mirror. There are three main ways to realize the laser light source of laser TV, including three primary color pure laser light source, fluorescent pink wheel plus blue laser, and LED plus blue laser hybrid light source. 3D effect The laser light source itself is polarized light, which is the most suitable light source for 3D effect, and the combination of the two is very easy, there is no obstacle in fusion. It can be said that in the field of 3D display, laser TV has an incomparable advantage, and 3D technology is also one of the main development directions of laser TV. For the TV signal source, since the chromaticity points of the laser three primary colors are different from those of the existing fluorescent three primary colors, it is only necessary to perform a chromaticity conversion on the video signal to achieve compatibility with the existing program source. background From the original CRT TV, to the flat-panel TVs represented by LCD, LED, PDP, which occupy the market share, and the third-generation OLED display technology actively deployed by Samsung, Changhong, TCL, Skyworth, Konka, etc., this does not mean TV sets. The development of display technology has reached its peak. In 2010, LED LCD TVs with outstanding characteristics such as ultra-thin, energy-saving, large color gamut and long life have accounted for more than 30% of the total sales of large and medium-sized cities. It is expected to reach 40% in the whole year. It is called "the first year of LED popularity." When the laser TV is being played, the red, green and blue video data is sent to the modem inside the laser unit, and the amplitude is converted into optical information. The three rays with red, green and blue lines are combined into a single laser beam (including all image information). ), then sent to the projection head through the optical cable, and finally projected onto the screen. The horizontal deflection of the laser beam (line scan) is achieved by a multi-faceted rotating mirror in the projection head, and vertical deflection (frame scanning) is achieved by a tilting mirror. The working process is somewhat similar to that of a CRT TV, except that the electron beam of the CRT is scanned by deflection, and the photon beam of the laser TV is done by a prism. With the demand for large-screen high-definition, with the commercialization of laser display technology, laser TV has entered the public's field of vision, and Xiaomi has carried out a wave of popular education. The first commercial laser TVs entered the market in the late 1990s. In the past two decades, with the support of microelectronics and new materials and other related technologies, laser TV has developed rapidly. The development of solid-state laser technology has made the three primary color light sources solid and the efficiency has been greatly improved. The current laser TV system uses all TV standards such as PAL, NTSC, SECAM, VGA or HDTV. Laser TV is the strongest competitor in the 21st century TV market. Laser TV key technology The red, green and blue trichromatic laser source determines the color gamut space, lifetime and working mode of the terminal display product based on laser display technology. Image modulation technology, which determines the comprehensive performance indicators of display image resolution, contrast, brightness, etc. The mainstream modulators are LCD, DLP and LCOS. The shimming and decoherence technologies directly affect the efficiency of the laser display and the image signal-to-noise ratio. Information processing techniques for large color gamut images, including compression, storage, transmission, and demodulation of digital signals. The key to standard color display technology is black-and-white color conversion. The key to digital display technology is high-resolution and stable transmission of images. The key to laser display technology is whether it can achieve full-color display. KNL1-63 Residual Current Circuit Breaker
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