subject: Comparing The Lifespan Of Lcd Screens And Crt Screens [print this page] The lifespan of LCD Screens is mainly affected by two aspects: the aging speed of LCD Screens and the lifespan of the backlights. The quality of the LCD Screen is the main aspect determining its aging speed, and over brightness will shorten the lifespan of the screen. Within reasonable brightness range, the screen with high quality enjoys a lifespan of over 50000 hours.
Since LCD Screen is backlit, therefore the lifespan of the backlight tube affects greatly on the lifespan of the LCD Screen products. Let us take LCD Screen TVs as an example.
In the market, most LCD Screen TVs apply I type LCD backlight tube which contains 16 to 20 lights. When the TV is one, its LCD Screen is working and all those 16 to 20 lights are working. The limited lifespan of the light group affects greatly on the lifespan of the LCD Screen.
Compared with I tube, U tube doubles the luminous efficiency if the number of the tubes are the same. Normally, U tube separates the 16 to 20 lights into 4 groups instead of 1 group. When at work, only 3 groups are working, the other one is resting. For the same brightness, U tube backlights have extended the lifespan of each group lights to prolong the lifespan of the whole 4 group backlights. That is why U tube is mostly welcome.
Comparing with CRT screen, LCD Screen is free from radiation. This is the No.1 advantage of LCD Screens. For long time using laptop computers, laptops with LCD Screens are more suitable and welcomed. However, when comparing the lifespan and the brightness, CRT Screen wins. LCD Screen enjoys a lifespan of 5 years, while the lifespan of CRT screen is about 10 years. The brightness of a LCD Screen will faint during aging process, while the brightness of a CRT Screen has slight changes.
At present, most laptops and TVs are using LCD Screens. Most business sellers sell replacement LCD Screens [ http://www.hootoo.com/lcd-screen-panels-c-70.html ] providing a way for users to get replacement part when their LCD products need replacement. HooToo.com is a leading online supplier of Laptop LCD Accessories. People can get Laptop LCD Screens in various inches for different brands.
by: Rain Blog
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