The LCD inverter controls the amount of light displayed on a cell phone. When the inverter is bad, the cell phone LCD screen can fade and become dimmer. Luckily, it is very likely that you do not have to replace the cell phone itself, which will often cost you a lot more money.
With LCD digital products such as notebook computers, digital cameras, cell phone, PDA, DV, etc. before the CRT display's brightness is not high, but if the long-term to the maximum brightness, it is easy to make liquid crystal panel and backlight lamp aging, resulting in LCD screen color cast, usually yellow.
If the backlight of your laptop stopped working and the image on the screen is so dim that you can barely see it under bright light, most probably you have a mal-functioned inverter board. There is a good chance to fix the problem if you replace the inverter board.
Cell phone TD025THEF1LCD LCD screens cause less eye fatigue and hence it's easy to work for long time. They emit zero radiation, which will ensure lesser or no eyestrain even at times of continuous use and are not even affected by magnetic interference.