Monday 21 May 2012

Internal & External Displays

External Displays for Multimedia Devices
Types of Displays:

With the diverse amount of ways to game in todays market, the use of different displays is not un-common especially when hand held devices, mobile phones & console/systems are all competing against each other be to the most mobile & best system to use. They're several different types of displays which can be used for gaming and these are:
  1. Built In (Internal Displays)
  2. External Displays
  3. Liquid Crystal Displays
  4. Colour Displays
  5. Monochrome Displays
I will be addressing these display types looking at how they are used in different elements of games technologies.

Internal Displays and how they're used:

These types of displays are most commonly used for such gaming systems as the Nintendo DS, PS Vita, Gaming Laptops, Mobile Phones & PSP. These all implement the technology of an internal displays which means the console is built in along side the screen they will be using, the same way mobile phones have been designed for years. Having an internal display means that the device is going to be more portable than a solid console connected to an external display, however they have quite a few limitations. Due to them being built into mostly only hand held devices this means that they are going to be quite small & with a small resolution, this mentioned, external displays which computers & console will use, can be more detailed and better resolution, making the gaming experience better. 

Internal displays are also more inclined to break along with the device when a fault occurs, this means that if something breaks within the system the screen may be inclined to damages & not work again. This can also be a problem if it is dropped as well, as it can crack the screen/or smash the screen meaning the system will work however cannot be seen, this can be avoided promptly with an external display. 

External Displays and how they're used:

These types of displays are most commonly used for such gaming systems as the Xbox 360, PlayStation 3, PC Gaming Systems, Wii & HDMI compatible devices such as a tablet. These all need to connect to a display through means of either a standard AV cable, a VGA cable, a DVI cable or HDMI cable. Depending on the type of device depends on how they will connect to a display, as some systems won't have HDMI available such as the Wii where it can only connect through AV cables and a computer can use all but AV cables as the signal from a computer is digital & AV cables are analogue meaning a converter would need to be in place for it to work. 

External displays are a common way to get a image from a device displayed, and with the expanding technologies which are being made with 3D televisions & displays, it will continue to be this way for a very long time. Although such systems like PC's are now implementing displays directly into the system so the hardware is built into the screen, they are still not recommended for solid system builds as they can't be changed or updated over a period of time.  

External displays have less chance of breaking due to them being separated from a system however, as they run through a different system entirely, they still have a chance of breaking on their own which can be an issue if there isn't a replacement to use, making the system pointless & useless for the time being. 

External Displays and how they're used:

These types of displays are most commonly used for such gaming systems as the Xbox 360, PlayStation 3, PC Gaming Systems, Wii & HDMI compatible devices such as a tablet. These all need to connect to a display through means of either a standard AV cable, a VGA cable, a DVI cable or HDMI cable. Depending on the type of device depends on how they will connect to a display, as some systems won't have HDMI available such as the Wii where it can only connect through AV cables and a computer can use all but AV cables as the signal from a computer is digital & AV cables are analogue meaning a converter would need to be in place for it to work. 

External displays are a common way to get a image from a device displayed, and with the expanding technologies which are being made with 3D televisions & displays, it will continue to be this way for a very long time. Although such systems like PC's are now implementing displays directly into the system so the hardware is built into the screen, they are still not recommended for solid system builds as they can't be changed or updated over a period of time.  

External displays have less chance of breaking due to them being separated from a system however, as they run through a different system entirely, they still have a chance of breaking on their own which can be an issue if there isn't a replacement to use, making the system pointless & useless for the time being. 

Liquid Crystal Displays:

Liquid crystal displays are most commonly used in flat screen televisions & display monitors for most systems, which makes use of light to display an image on the screen. The liquid crystals which are used within the display do not emit light meaning that an additional light source behind the LC display needs to be used to show the pixels up. This is an effective way to display the pixels however when the screen is powered the light source needs AC power so, a converter for the DC flow of electrical current is installed into the display. 

Whats also a large benefit is that they use very low power meaning that they can be implemented into systems which are battery powered such as hand held devices & laptops where they need to be charged from time to time. As the display doesn't take up that much power they can be safely installed into such devices and provide efficient results in power consuming. The display can output images in both colour & monochrome if settings are changed, so pixels can display either pure black and white or 16.7 million different colours. 

To allow light to get through or become blocked, the liquid crystals rotate or change their position in front of others, this means that if you have 2 liquid crystals and the one in front you place on its side slightly tilted it will begin to darken meaning its harder to see through the two LC's. However if they are placed the same to each other light will pass through without a problem. This is how the colour and the amount of light is sorted, by the way the liquid crystals in the display are positioned.  

Colour Displays:

Most modern day displays will allow for colour to be displayed depending on the device that has been connected to the display. This is because most systems & technologies use colour instead of black & white due to its advancement throughout time. Displays such as LCD's & LED's have the ability to display 16.7 million colours to project pure high definition quality and with new advancements the ability for 3D quality. Colour displays have been implemented into nearly every system which can benefit from them such as mobile phones, laptops, external & internal displays. Colour displays are the default recommendation for most systems. 

Monochrome Displays:

Monochrome displays are essentially the opposite of colour displays where the only output black and white. They are normally used for such systems which don't need to display colour such as display boards, cockpit information, home phones & internal displays for appliances such as a cooker. These don't need the use of colour as they mostly output text & small images meaning that only black and white would be needed. So for this monochrome displays are used.