The laptop screen is the most necessary part you should check when buying a computer regardless of new or used equipment.
1. LCD screen
LCD monitors are abbreviated by the word Liquid crystal display, this type of display is made up of internal pixels containing liquid crystals. That can change the polarity of light. When combined with the polarizing filter it can change the intensity of light transmitted. The advantage of this type of screen is vivid, honest and energy-saving images. Also with a flat design, devices that use LCD screens will have a slimmer and more compact design.
Currently, LCD monitors are being used quite commonly on electronic devices. LCD technology is rated superior to previous CRT technology in terms of image quality as well as convenience. However, LCDs still have some disadvantages such as outdoor visibility, narrow viewing angles or reduced screen quality after a period of use.
2. CCFL screen
CCFL is a different variant of LCD. Instead of using LED bulbs, CCFL uses neon bulbs as the backlight for the screen. The disadvantage of CCFL screen is that it emits quite a lot of heat during use. Besides it consumes more power than led screen as well as has less durability. Because of so many drawbacks, CCFL monitors are now discontinued and no longer widely used.
3. TN screen (Twisted Nematic)
TN monitors are abbreviated by the phrase Twisted Nematic. This is a crystal structure screen that was on the market quite a long time ago and is often equipped on low-end TVs and computers. The advantage of this screen is the low price. However, it has a very narrow viewing angle. Therefore, if you do not sit opposite the screen, users will see the image look noticeably pale. The only strength of the TN screen is the quick response speed, more than the IPS screen. Thanks to this strength, people use this type of screen quite a lot on gaming laptop models. In addition, this screen technology also allows displaying images with 4K resolution and a scan frequency of up to 240 Hz.
4. IPS screen
Another variation of the LCD screen is the IPS screen technology. This type of screen is often equipped on high-tech devices, possessing many outstanding advantages compared to other common LCD screens. The IPS screen also has the main components of the LCD. However, there has been some changes in the structure. The liquid crystal layers are now arranged in a horizontal line parallel to the two polarized layers of glass above and below, instead of perpendicular like before. Because of this change, the amount of scattered light is significantly reduced. It provides a wide viewing angle of up to 178 degrees, as well as more vivid and realistic images. Thanks to the superior advantages above, IPS displays are often equipped on high-end devices, suitable for those who use to design graphics that are demanding on display quality.