Sunday, February 19, 2012

LED TV is the same

Equipped with LED backlight LCD TV is in last few years the most attention in the LCD TV, with energy saving, environmental protection and the color performance and other aspects of the advantages to become the new trend of the development of liquid crystal TV, and gradually became the mainstream of current products.company formation Statistical data, at present LED backlight LCD TV attention has exceeded the proportion of ordinary LCD TV, is currently China's LCD TV market the real protagonist.
But the current market sales of LED backlight LCD TV is the same? This really can not be.
In the LED backlight LCD TV launched early, many products are equipped for white LED back light source, is the only emit white light LED light source to replace the original CCFL fluorescent tube. But with the development of technology, RGB-LED back light source start with on the TV, which is composed of RGB light mixing together, in the color gamut performance better than white LED backlight.
Of course, in addition to the LED light itself has the difference, LED back light source of incident position also somewhat difference, can be divided into direct type and side entry type two categories.
Said first side entry type LED back light source, which is the light source is arranged in the side edge of the light guide plate, the light guide plate through special design, make and uniformly dispersed throughout the plane, using the LED number is less, and the body can be designed to be very thin, for instance before Sony launched ZX1, 40 inch thickness less than 1 cm.
But the side entry type LED back light source also has its own disadvantages, such as light source using rate is low,singapore company formationrelatively poor uniformity of straight down type, not for regional control etc..
Straight down type backlight light guide plate does not need LED, LED array in a light box bottom, light emitted from the LED through the bottom surface and the side surface of the reflector, and then through the diffusion plate and the optical module to evenly eject. Compared with side light, straight down type backlight LED to dynamically control the backlight lamp, this performance in some dark scene image, only need to adjust the required backlight area ( on the screen is black or dark section ) local lighting, which can show the contrast of light and shade of high-quality natural image effect.
But the direct LED backlight high cost, generally in the high-end models are equipped with, and large volume, body cannot and using the side entry type LED backlight LCD TV, very thin.
In the direct LED backlight, 2010 also out of a new product, called" FULL LED backlight". It adopts the LED light amount is more, of course can be controlled by the area more, so at a certain regional changes in response to faster, more accurate.
Of course, you may ask the LED lamp more power will be bigger?
In fact, direct LED backlight lamp although many, but the light utilization rate is high, in the actual testing process, we can see the effect of energy saving is also very good.
Comments: in fact, overall the market said" LED TV",Furniture industry performance also or the LCD TV, is nothing but a LED back light source to replace the traditional backlight. Although this is only the back light source transformation, but thanks to the LED light source of excellent characteristics, can greatly enhance the value of the color gamut of LCD TV, LCD TV in the lower power consumption to achieve higher brightness, contrast and color saturation, performance is more excellent.

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