Laser and LED televisions bring distinct innovations to the world of thin televisions. Both televisions use new technologies to significantly reduce power consumption over plasma or traditional LCD TVs, but differ in their other benefits.
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One feature found in both laser and LED TVs is their lowered power consumption when compared to their counterparts. Laser televisions are reported to use 25 per cent less power than standard plasma screen televisions, while LED-backlit televisions require 20 to 30 per cent less power than regular LCD TVs.
Most plasma and LCD televisions that don't use lasers--including LED TVs--can only produce approximately 45 per cent of the colour spectrum that is visible to the human eye. According to manufacturer Mitsubishi, laser projection methods produce twice the colour spectrum of other International Telecommunication Union 709 standard-based TVs. LED TVs with a full-array configuration of backlighting--when rows of LEDs are positioned direction behind the screen instead of along the edges--can utilise a feature called "local dimming". Local dimming allows the backlights of black areas in a video to be shut off, resulting in a significantly sharper picture.
While LED TVs with backlight behind the screen produce a better image, those with LEDs in the edge of the screen can be made significantly thinner. By contrast, laser television require a chassis that supports a projection unit, similar to older Cathode-Ray Tube TVs. Angled mirrors allow the laser unit to be smaller than traditional Cathode-Ray Tube TVs, but will still be thicker than equivalent plasma or LCD TVs.
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