Currently Being ModeratedMar 9, 2012 6:42 AM (in response to sundeepoad)
Apple store lists MacBook Pros (15 and 17 inch models) to have an LED backlit screen
Not quite. Check
It reads, "LED-backlit". That tiny hyphen makes all the difference. An "LED backlit display" is a display made of LEDs with an unspecified backlight. An "LED-backlit display" is a display whose backlight is provided by LEDs. The display is an LCD display. But to view such a display, a source of light behind the display is required. In the MBP, the light source is an array of LEDs.
Currently Being ModeratedNov 7, 2012 1:07 PM (in response to fane_j)
for macbook pro 15 2011 earl
to understand what you say.....you say that the
Display: 15.4-inch (diagonal) LED-backlit glossy or optional antiglare widescreen display with support for millions of colors Supported resolutions: 1440 by 900 (native) is the real one
but the system information say Built-in Color LCD Display ????
Currently Being ModeratedNov 7, 2012 1:31 PM (in response to sundeepoad)
The actual screen that forms the image you see is an LCD screen. Has been for years, and likely will still be for years. The "LED" bit is all about the backlight that enables you to actually see the pixels.
Prior to LED-backlit displays, the backlight was a cold cathode lamp, much like a flourescent lamp in your office or home. Cold Cathode lamps have a few problems: 1) they are not as "green" as everyone wants them to be, mostly due to slight amounts of mercury that is in them. 2) because it is a glass tube, the displays cannot be made as thin as Apple wants them. The MacBook Air, MacBook Pro w/Retina display and the coming iMacs wouldn't be nearly as thin without the LED backlight.