CRT history Character LCD Modules

A display of a CRT (Cathode Ray Tube), i.e. a cathode ray tube, as the imaging device, it is to achieve the earliest and most widely used technology. The cathode ray tube (CRT) is invented in 1897 by the German physicist Braun (Kari Ferdinand Braun) is used in an oscilloscope for the first time to meet with the world. Subsequently in 1907, Rossing in the cathode ray tube (CRT) receiver design mechanical scanner, 1929 Russian-born American scientist Zuoerjinzuo in the development of electronic scanning mapping vacuum, and then in 1949 a shadow mask type color TV come out. A hundred years, as the core components of CRT display terminal has been widely used in people's lives in popularity in recent decades, with the development of computer technology, computer CRT monitors like TV into millions of households . At the same time, with the continuous improvement of public awareness of the requirements of the display, quality, health, environmental protection and humane aspects of the development of the CRT experienced a sphere, cylinder, plane rectangular shadow mask pure flat plane until Sony Long, Mitsubishi Diamondtron the constantly improve an aperture grille Flat picture tube.OLED Display Module
Technical principles
CRT display terminal from the electron gun (Electron gun) the deflection coils (Deflection coils), the mask (Shadow Mask), the phosphor layer (phosphor) and the glass enclosure composed of five parts.
Simple to understand, CRT display the working principle of the terminal is to be provided inside the cathode-ray tube electron gun cathode emitted electron beam, is controlled by the intensity, focus and becomes a small flow of electrons accelerated, and then through the role of the deflection coil deviated to the correct target, through Yam cover apertures or fence bombardment to the phosphor in the phosphor screen. The phosphor is activated to emit light. R, G, B three-color phosphor dots are lit by the different proportions of the intensity of the electron stream, will produce a variety of colors.COG LCD Display