new computer monitor

new computer monitor (Photo credit: arellis49)

Monitors are an extremely important part of a computer, without it you won’t be able to see your computer function (on the software end). There is a lot to learn about monitors, because there is a lot of technology involved. I will have fun with this post and I hope you will as well.

Monitors can also be called a display and it is obviously an “electrical visual display”. Simple enough right? Inside the case of the display is the circuitry and the case is obviously the enclosure. Most modern displays we see today are LCD or liquid crystal displays.

Monitors as well as televisions have aspect ratios and over generations they have evolved from 4:3, to 16:9 and now to 16:10.

*History Time*

Older displays used a cathode ray tube which used one or more electron guns and a fluorescent screen to display visual information.

Definitions…

As a writer you begin to appreciate words AND their definitions. Here are some definitions for you if you did not know.

electron – a unit of charge equal to the charge on one electron.

fluorescent – strikingly bright, vivid, or glowing.

Different technologies

  • Cathode ray tube (CRT) – the first few computer monitors used this technology. These monitors were monochrome (cool right?) The highest resolution using this technology was 640×350. Tiny right?
  • Light emitting diodes (LED) – a bunch of red, green and blue diodes are pushed together to form colorful square pixels. You may also think of LED lights which can be used for design purposes when you think of LED.
  • Liquid Crystal (LCD)TFT-LCD (thin-film-transistor liquid-crystal display) is a version of LCD which is a dominant technology for computer monitors.
  • IPS (In-Plane switching) Panels – accurate viewing angles, good for touch screen devices, high speed signals, and has clear images. Some disadvantages is that they are prone to the ghosting effect which means that there is a replica of a transmitted image like this.

220px-TV_ghosting_interference

Performance

  • Aspect ratio – ratio of horizontal length to vertical length. (4:3, 5:4, 16:9, 16:10)
  • Luminance – photometric measure luminous(light) intensity per unit area of light which is traveling in a certain direction. basically it is the measure of emitted light being passed from a certain area. It is measured using the SI unit candela per square meter (cd/m^2)
  • Size of image – usually measured diagonally.
  • Resolution – Number of pixels in each dimension.
  • Dot pitch (pixel pitch) – Measured using millimeters, it is the distance between the same color subpixel. If you have a small dot pitch the image will appear sharper because the subpixels are closer together. makes sense right?
  •  Refresh Rate – Ever mess around with your monitor settings and run into this and was confused by what it means? This is the number of times in a single second that the monitor/display is illuminated (lite up). The RF is constricted by the response time of the display, which we will hit next.
  • Response Time – measured in milliseconds, is the time it takes for a pixel to alternate from white (active) to black (inactive) and back to white again. You want your response time to be fast (lower number) so that you can have fluid transitions between images/frames.
  • Contrast ratio – you all know the contrast setting on your TV/Monitor right? This is the ratio of the brightest color white to the darkest color black. Good brights and darks means a great contrast ratio.
  • Power Consumption – which is measured in watts. You don’t want your monitor to draw up the electric bill right?
  • Delta-E – this represents color accuracy, the lower the better. please check out link to learn more.
  • Viewing Angles – ever get up from your laptop to grab something and look back to see what you were looking at before and see strange colors? These are issues with viewing angles. This is the maximum angle at which images on the monitor can be viewed. It is measured in degrees, horizontally and vertically, hence the word “angle”.

Top Monitor manufacturers 

  • Dell
  • HP
  • Acer
  • Lenovo
  • Ag Neovo
  • AOC Monitors
  • Apple
  • Asus
  • AU Optronics
  • BenQ
  • Chi Mei
  • Compaq
  • Eizo
  • Hanns-G
  • iZ3D
  • LaCie
  • LG
  • NEC
  • Planar Systems
  • Samsung
  • Sceptre Incorporated
  • Sharp
  • Shuttle Inc.

There is a ton of information on monitors and I highly encourage you to check out all the links and read more about each of them. If you want to learn more about history please visit this link as well. Monitors can be a very complex topic, but once you start understanding everything about them they become very interesting and fun to choose from! If I missed anything please leave a comment. Comments are 100% appreciated and welcome, and I am always open to more knowledge and information.

For more information on Monitors in general.

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