Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What is the backlight?

April 26, 2017backlight

0

10 Posted

What is the backlight?

1 Answer

0

10 Posted

The backlights within the LCD mainly servers as illumination source for the display. Most of all backlight for the LCD display are based on fluorescent lamps and it consists of a phosphor coated glass cylinder with cathodes at each end. Both gas and mercury are filled within the cylinder then when the correct current is supplied to the cathodes an arc is formed in the gas. Therefor, produces ultraviolet light (UV) then which excites the phosphor on the glass.