A backlight is a form of illumination used in liquid crystal displays. As LCDs do not produce light by themselves—unlike, for example, cathode ray tube displays—they need illumination to produce a visible image. Backlights illuminate the LCD from the side or back of the display panel, unlike frontlights, which are placed in front of the LCD. Backlights are used in small displays to increase readability in low light conditions such as in wristwatches, and are used in smart phones, computer displays and LCD televisions to produce light in a manner similar to a CRT display. A review of some early backlighting schemes for LCDs is given in a report Engineering and Technology History by Peter J. Wild. Simple types of LCDs such as in pocket calculators are built without an internal light source, requiring external light sources to convey the display image to the user. Most LCD screens, however, are built with an internal light source. Such screens consist of several layers.
关于Backlight
Strangers who are each at critical stages of their lives are pulled towards an uncharted lake in the middle of the desert where they all have the opportunity to save each other.
Backlight的成就
It was the second highest-grossing Portuguese film in 2010.
您不知道Backlight的热门事实
Liquid crystal displays.. Light sources.. Types of lamp.
