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A single direct LED cluster of a LCD. LED backlights replace CCFL (fluorescent) lamps with a few to several hundred white, RGB or blue LEDs. 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:
18 parallel CCFLs as backlight for an LCD TV LCD with edge-lit CCFL backlight For several years (until about 2010), the preferred backlight for matrix-addressed large LCD panels such as in monitors and TVs was based on a cold-cathode fluorescent lamp (CCFL) by using two CCFLs at opposite edges of the LCD or by an array of CCFLs behind the LCD ...
Transflective LCDs combine the features of a backlit transmissive display and a reflective display. The common implementations of LCD backlight technology are: 18 parallel CCFLs as backlight for a 42-inch (106 cm) LCD TV. WLED array: The LCD panel is lit by a full array of white LEDs placed behind a diffuser behind the panel.
In lighting design, backlighting is the process of illuminating the subject from the back. In other words, the lighting instrument and the viewer face each other, with the subject in between. This creates a glowing effect on the edges of the subject, [1] while other areas are darker. The backlight can be a natural or artificial source of light.
In some situations a photographer can use a reflector (such as a piece of white cardstock mounted off-camera, or even a white-painted wall) as a fill light instead of an actual lamp. Reflecting and redirecting the key light's rays back upon the subject from a different angle can cause a softer, subtler effect than using another lamp.
Past AT&T contract disputes with WRAL and with the CBS 17 parent company lasted for nearly three months. Will outages go that long this time?
DirecTV and U-verse customers have been unable to watch WBIR since the parties failed to come to an agreement by Nov. 30 over the fees DirectTV would pay Tegna.
Some displays that transmit light and have minor reflectivity are best readable in the dark and fairly readable in bright sunlight, but only under a particular angle; they are least readable in bright daylight without direct sunlight.