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An LCD with LED-Backlight may be edge- or direct-lit: [9] edge-lit (ELED): LEDs form a line around the rim of the screen. May additionally support: frame dimming: adjusts the brightness of the entire backlight based on the content displayed, as if local dimming was supported but only with a single zone
A backlight is a form of illumination used in liquid-crystal displays (LCDs) that provides illumination from the back or side of a display panel. LCDs do not produce light by themselves, so they need illumination (ambient light or a special light source) to produce a visible image.
For example, a character positive LCD with a backlight has black lettering on a background that is the color of the backlight, and a character negative LCD has a black background with the letters being of the same color as the backlight. LCDs are not subject to screen burn-in like on CRTs.
In LCDs, this is because, in the OFF state, the pixels turn off, allowing light from a backlight to pass through, while in the ON state, the pixels turn on, blocking light. [29] [30] [31] MIT Researchers were working on creating Transparent Displays inexpensively using nano-particles. [32]
Enjoy sports, movies and all your favorite streaming services on this 40-inch smart TV, which has 1080p HD resolution and LED backlight to bring you clear, vibrant visuals.
Basic e-readers have glare-free screens with long battery lives, but higher-end models have page-turn buttons and audiobook compatibility.
On March 1, a new era of photography began when California-based Lytro started shipping the first Lytro Light Field Cameras. When I first heard about light field photography last year, I was ...
The backlight can be a natural or artificial source of light. When artificial, the back light is usually placed directly behind the subject in a 4-point lighting setup. A back light, which lights foreground elements from the rear, is not to be confused with a background light, which lights background elements (such as scenery).