The 3 in 1 laser pointer is also very popular

 The 3 in 1 laser pointer is also very popular.
Widely used in computer displays have a huge impact, and therefore subject to great attention. Computer technology will promote the development of the display software. Germany in 1897 KF Braun invented the cathode ray tube display rapidly changing electrical signals for measuring instruments. During World War II, was used to display the radar signal. After the war, the development of television technology to become an important foundation for the development of display technology. The early 1950s, electron-beam tube for computer output display. Made of the early 1950s electroluminescent display, DC powder type and the AC and DC film to explore cross-display technology, and gradually increase the brightness and luminous efficiency. 1960s, made of liquid crystal display. And at the same time, the firm and strong package are required to ensure the quality of laser pointer .
This period also appeared in the plasma display and the LED display, and electrochromic display, electrophoretic display has been studied. Since the advent of the laser, the laser display attention, to produce a holographic display. To the need for military command center, developed a variety of large-screen display device. The early 1970s, the emergence of the microcomputer and the development of LSI technology, so that the display device processing unit achieved a significant improvement. The display software has also been a corresponding development. Therefore, the electron beam tube based graphics, images, color display device's application to enter a new period of development. Display technology has experienced a black and white display, color display, digital display these stages.
To study the optical modules, integrated optical module, shim dissipated spot modules, standard modules to system integrators or terminal manufacturers, the use of such devices to complete the whole system components to the industry and market . The laser display technology in the future development, I think it will become a multi-platform technology, its large color gamut, high efficiency, long life and other advantages will be the development of display technology provides a new option. Laser future applications include the phone's display, even theater, a portable projector and backlight TV can be widely applied to the market. Chinese Academy of Sciences also consider how the laser light source used in LCD TVs lighting, new light source with the current mainstream TV. It is not realistic to test the quality of every piece of laser pointer .