Different Types of Computer Monitors

Initially, the computer monitor used for data processing while television receivers used for entertainment. From 1980 onwards, computers (and their monitors) have been used for both data processing and entertainment, while televisions have implemented some computer functionality. Common aspect ratio of televisions, and then computer monitors, has also changed. The monitor is a hardware device is an electronic visual display for computers. Comprises the display device, circuitry, and an enclosure. The following are the Different Types of Computer Monitors:

The first computer to use a monitor for Cathode Ray Tube (CRT), which is a vacuum tube containing an electron gun (a source of electrons or electron emitter) and a fluorescent screen used to view images. That means to accelerate and deflect the electron beam to a fluorescent screen to create an image. Picture may represent electrical waveforms (oscilloscope), pictures (television, computer monitor), radar targets etc.. CRT has also been used as a memory device, in the case of visible light emitted from The fluorescent material (if any) are not intended to have a significant meaning to a visual observer (though the visible pattern on the tube face can vaguely represent the stored data).

Cathode Ray Tube (CRT)

Pros:

• High contrast ratio (more than 15,000:1), and wide gamut color is very good, very good black levels.
• Excellent viewing angle

Disadvantages:

• Large size and weight, especially for larger screens (20 inches) weighs about 23 kg
• Produce large amounts of heat when run

Plasma Screen Monitor uses small cells containing electrically charged ionized gases, or what are in essence more space known as fluorescent lamps.

Plasma Screen Monitor

Pros:

• Capable of producing deeper blacks allowing for superior contrast ratio
• Wider viewing angle than LCDs, the image is not degraded on high angles like LCDs
• Little visible motion blur, thanks in large part to very high refresh rate and a faster response time, contributing to superior performance when displaying content with significant amounts of rapid motion (though newer LCD screens have the same refresh rate, but it also introduced the soap opera effect).

Disadvantages:

• Generations previous view more susceptible to screen burn-in and image retention, the latest models have a pixel orbiter that moves the entire image is slower than that seen with the human eye, which reduces the effects of burn-in but not prevent it.

Liquid Crystal Display (LCD) is a type of display that is more energy efficient and offer safer disposal than CRTs. Low electrical power consumption enables it to be used in battery-powered electronic equipment. It is electronically modulated optical device made ​​up of a number of segments filled with liquid crystals and arrayed in front of a light source (backlight) or reflector to produce color or monochrome image.

Liquid Crystal Display (LCD)

Pros:

• Very compact and lightweight
• Generally low power consumption. On average, 50-70% less energy than is consumed from a CRT monitor

Disadvantages:

• Limited viewing angle, causing color, saturation, contrast and brightness to be varied, even within the intended viewing angle, by variations in posture.
• The black level is unacceptable may appear bright due to the fact that the individual liquid crystals can not completely block all light to pass through.

Light Emitting Diode (LED) is a component that can emit light. LED is a product of the other findings after diode. The structure is also similar to the diode, but later found that the electrons that hit the connection PN also release energy in the form of heat energy and light energy.

Light Emitting Diode (LED)

LED are made to be more efficient if off light. To get light emission on semiconductors, doping is the use of gallium, arsenic and phosphorus. Different doping types produce different colors of light. In the current LED light colors that there is a lot of red, yellow, blue and green. LED very rare

Basically, all colors can be produced, but it would be very expensive and inefficient. In addition to choosing color LEDs, to consider working voltage, maximum current and power dissipation her. The house (chasing) LED and shapes vary, there are rectangular, round and oval.

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Posted by samuelkurnianta, Published at 11:55 AM and have 0 comments