Video Display Units are electronic devices that produce visual images on a screen. VDU has revolutionized modern technology. It is used in a wide variety of applications, from computer monitors and televisions to gaming displays and medical imaging equipment.
In this blog post, we will provide a brief history of VDUs, explain the different types of VDUs, explore their uses, and discuss factors that are important when selecting a VDU. We’ll also highlight the health concerns associated with long-term use of VDUs and give some tips on how to use them safely and effectively.
What is VDU?
The full form of VDU is Video Display Units. This is called video display units in Hindi. VDU is an electronic device that produces a visual picture on a screen. It is also commonly referred to as a display unit, monitor or screen.
History of VDU
The first VDU was the cathode ray tube (CRT) display, invented in the early 20th century. In the 1960s, CRTs became popular as computer monitors. In the 1990s, liquid crystal displays (LCD) and plasma displays were introduced as alternatives to CRTs. Now LED display has become the dominant technology for VDU.
Importance of VDU in modern technology
VDU is an important component of modern technology. They are used in everything from personal computers and smartphones to industrial machinery and medical equipment.
CRT (Cathode Ray Tube) VDU
CRTs work by firing a beam of electrons at a phosphor-coated screen. This causes the phosphor to emit light and form the image. CRTs have excellent color accuracy and contrast, but they are heavy and consume a lot of power.
LCD (Liquid Crystal Display) VDU
LCDs work by using liquid crystals to block or allow the passage of light. They need a backlight to produce an image. LCD VDUs are lighter and consume less power than CRT VDUs, but they have limited viewing angles and color accuracy.
LED (Light Emitting Diode) VDU
LEDs work by using light emitting diodes to produce a VDU image. LEDs have excellent color accuracy and consume less energy than both CRTs and LCDs, but LEDs can be expensive.
Uses of VDU
A. computer monitor
B. Television set
C. Gaming Display
D. medical imaging displays
E. Industrial Displays
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