The display is the terminal of the information chain. The development direction of the display technology is toward the limit of the human eye vision - to realize the full fidelity reproduction of objective things information. The laser display uses red, green and blue tricolor laser as the light source, that is, the narrow-band coherent light source replaces the wide-band incoherent light source so that the three elements of display (HD, panchromatic and true 3D) can achieve breakthrough improvement: geometric resolution increases from 2K to over 10K, The number of colors is increased from 16M to over 8000M, the color gamut coverage is increased from 30% to 90%, the color saturation is increased by more than 8 times, and the true 3D display can be achieved by optical holography. Therefore, the laser display is considered to be a new generation of display technology following the black-and-white display, the color display and the digital display.
With the support of "863" project and CAS Knowledge Innovation Project, the team of academician Xu Zuyan of the Chinese Academy of Sciences took the lead in implementing the laser projection display in China based on the three primary color solid-state laser (DPL) in 2002. In 2005, it successfully demonstrated the 140-inch laser TV, Ministry of joint identification, the overall international advanced technology, color gamut coverage and other key technologies leading the world, from 2008 to 2010 laser display series prototype successfully used in the Olympic Games, Expo, digital cinema and so on.
Xu Zuyan academician led the team of physics and chemistry broke through the miniaturization of high performance trichromatic LD laser module, high efficiency control drive, high precision time-sharing modulation, color management, high efficiency thermal management, shimming and speckle elimination and other key technologies in March 2015 Developed the laser projection TV with trichromatic LD as the light source for the first time in China. The luminous flux is 3800 lumens, the geometric resolution is 2K, the color gamut coverage is more than 63%. It is equipped with various functional interfaces for displaying 100-inch projection Brilliant high-definition video images. Compared with the currently available products that use blue semiconductor laser (LD) to excite phosphor to form a trichromatic hybrid light source, the laser TV developed by R & D has the advantages of large color gamut, high color saturation and high brightness.
100-inch trichromatic LD laser TV successfully developed, opened up the way to industrialization of laser TV, with the trichromatic LD long-life, low-cost and other industrialization of key technologies gradually overcome, laser large-screen television will enter the homes of ordinary people, Create a new generation of display industry.
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