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An LED-backlit LCD is a liquid-crystal display that uses LEDs for backlighting instead of traditional cold cathode fluorescent (CCFL) backlighting. [1] LED-backlit displays use the same TFT LCD (thin-film-transistor liquid-crystal display) technologies as CCFL-backlit LCDs, but offer a variety of advantages over them.
In dim ambient light or at night a backlight allows reading of the display in its transmissive mode. [3] Digital time displays in alarm clocks for bedrooms may also work this way. If they are battery-powered, the backlight may be push-button operated. The backlighting is usually dim, so that the display is comfortably readable at night.
This is a milestone for implementing large-screen LCDs having acceptable visual performance for flat-panel computer monitors and television screens. In 1996, Samsung developed the optical patterning technique that enables multi-domain LCD. Multi-domain and in-plane switching subsequently remain the dominant LCD designs through 2006. [10]
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.
The Samsung SUR40 is a 40-inch (102 cm) 16:9 LED backlit LCD (1920×1080) with integrated PC and PixelSense technology, which replaces the cameras in the previous product. PixelSense technology enables Samsung and Microsoft to reduce the thickness of the product from 22 in (56 cm) to 4 in (10 cm).
The LCD panel is synchronized with the backlight. For example, to make a segment appear red, the segment is only turned ON when the backlight is red, and to make a segment appear magenta, the segment is turned ON when the backlight is blue, and it continues to be ON while the backlight becomes red, and it turns OFF when the backlight becomes green.
TFT Central – Reviews, News and Articles and includes panel search database "Monitor panel search". FlatpanelsHD.com. – LCD monitor panel search database; Animated LCD Tutorial by 3M; LCD Panels with Response Time Compensation, X-bit labs, December 20, 2005 "Contemporary LCD Monitor Parameters and Characteristics". X-bit labs. October 26, 2004.
In many cases, flat-panel displays are combined with touch screen technology, which allows the user to interact with the display in a natural manner. For example, modern smartphone displays often use OLED panels, with capacitive touch screens. Flat-panel displays can be divided into two display device categories: volatile and static.