YKTALK

Computer Graphics generated pictures can be displayed on diversified display medium called the video display devices . The primary output device in a graphics system is a video monitor. Types of Display Technologies Cathode Ray Tube(CRT) Direct View Storage Tube(DVST) Flat Panel Display Cathode Ray Tube(CRT) This is a vacuum glass tube capable of converting computers electrical signals into variable images at high speed. CRT is the technology used in traditional computer monitors and televisions. In CRT, when cathode is heated it emits electrons which after through the focusing and deflection plates gets strike on the phosphor coated screen and as the electron strike the screen, they give their energy to phosphor, which causes a few photons to be generated and results in our seeing a spot on the CRT's face. The CRT is also called the Continual Refresh Tube as one has to draw pictures repeatedly by quickly directing the electron beam over the same point as light emitted by phosphor ...