Backlights are lights that are attached to LCD displays so that they can be seen at night. They come in many varieties, like white and blue/green. White lights are usually small light bulbs attached to the side of the display, and are not homogenically distributed. Blue/green lights are produced by a paper on the back of the display and are homogenically distributed. LCD redirects here. ...
They differ from frontlights because they illuminate the LCD from the side or back, where frontlights are in front of the LCD. A frontlight is a system of illuminating a screen, commonly an LCD, so that it can be used in dark environments or those where ambient lighting is poor. ...
Backlight is also used to refer to the rear window of an automobile. A small variety of cars, the most popular kind of automobile. ...
The display backlighting system of claim 8, wherein the display surface area of the liquid crystal display is parallel to a mounting surface area of the printed circuit board.
Typically, the goal of backlighting is to route light from a source efficiently and evenly into the planer area (backplane) of a light pipe directly behind the LCD so that it may escape forward through the LCD, giving the appearance of an illuminated display.
Backlighting requires that light from the light source be emitted into an entrance lens of the light pipe and distributed evenly within the light pipe.
Laptops from Apple and HP might use LEDs as a backlight source starting in the second quarter of this year.
These LED backlights distribute backlight more evenly than the cold cathode florescent backlights used in laptops today, and also offer a higher range of colors.
Using a little software tweak a MacBook user was able to get his keyboard backlighting to flicker and dim with the beats of the music from iTunes.
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