Thursday, January 27, 2011

Why LED-backlit TV?

LED TV


LCD TV and computer monitor images require backlight. Traditional LCD screens use cold cathode or compact fluorescent lamps (CCFL). This is basically a white neon light behind the image of the LCD panel.

LED-backlit replace fluorescent lamps and includes a full range of LEDs behind the LCD panel image. Backlit LED has some advantages over CCFL backlight. A screen image, whether moving or static, can vary in color, brightness, and varyIntensity. The different parts of the image with these properties can brighten especially in those areas of the screen with the local color of these features enhance what the color of a pure residence and contrast. black image would remove the backlight LEDs with little or nothing to give a rich black, since no loss of light through the LCD screen in this area.

The combination of these factors present a remarkably bright and sharp, even in brightly lit rooms.LED backlight can be lit or dark set, the mood lighting in a room. With some optimizations fully LED-backlit probably rivals the picture quality of plasma TV with the added benefit of image brightness to well-lit rooms.

Edge lighting

Edge lighting is a type of LCD backlight, which is provided by LEDs on the edge of the screen installed behind the LCD panel. The LED lighting is diffused edgeoptical light from a film spread over the entire background of the LCD screen. Edge lighting is not specific to a locally controlled backlight LED backlight full-RGB-array.

Edge lighting uses less energy and provides for the display panels are extremely thin. Some dishes can be only an inch thick.

Viewing Angles

The LED-backlit TVs are less distorted view of the TV to rival plasma.

Refresh

Frequency of updateexpressed in cycles per second or Hertz (Hz). This number is usually in the range of 60Hz to 240Hz LCD and upper classes in plasma and laser classes. This means that the screen is updated 60-240 or more times per second. It 's a bit like the shutter of the camera. The longer the shutter is open (low refresh rate), the more likely it will be a blur in an image with a moving object. With new technologies we can see higher numbers. The higher the number, the sharper the imageare used primarily in high-motion video, action scenes and sporting events to provide the support or the support of the incoming TV signal.

Screen Glare

monitor and television screens are available in different versions. A brilliant high-gloss may be prone to glare and reflections from a window or room light intersection. A matte screen would eliminate this effect. Check In any case, the sources and use of glare and reflection with regard to room layout and ad placement.

L 'Term "LED TV" advertising media used can be confusing. Each LED backlit display can be used "refers to a" LED TV. Knowledge of the differences between the types of TV-LED backlight to give you an advantage in choosing the right LCD TV.

The bottom line in choosing the right TV for you is what appeals to your discerning eye, your other wants and needs in this area, and your own portfolio.

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