Whenever the electrons hit the phosphor, it glows, producing images. An electron beam is shot at a phosphor-coated screen. TFT technology is generally produce superior images to passive-matrix displays.ĬRTs, or cathode ray tubes, work entirely differently. Passive-matrix displays are cheaper than TFTs (active-matrix). This is why LCDs have to be backlit or have high contrast (usually black and white).Ĭolor LCDs (like those in flat screen displays or laptop screens) use one of two ways for producing the image, either passive-matrix or TFT. An electric current is then applied with aligns the crystals so that light cannot pass between them. LCDs have two sheets of polarizing material with liquid crystals in between. This article should clear up the pros and cons of the two main display types- CRT and LCD. Have you heard the horror stories of people’s eyeballs exploding from staring at their CRT monitors for too long? Though they are scary, luckily they are not true.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |