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20 Inch DLED TV

20 inch dled tv The difference between LED liquid crystal and ordinary liquid crystal is the difference of the light source of the backlight. It is said that the life of LED is much longer than that of ordinary fluorescent tube, the brightness is also much more uniform, and the price is much......

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20 inch dled tv

The difference between LED liquid crystal and ordinary liquid crystal is the difference of the light source of the backlight. It is said that the life of LED is much longer than that of ordinary fluorescent tube, the brightness is also much more uniform, and the price is much more expensive.

Compared with ordinary TFT-LCD liquid crystals with cold cathode fluorescent lamp backlights, LED backlights have some advantages.

1, the uniformity of the backlight is better, there will be no black unevenness

2. Better contrast, led can turn off the backlight in full black screen, resulting in better dynamic contrast

3. The color performance is better, because the three-color LED backlight can be used, the color temperature can be effectively controlled, resulting in more realistic color and wider color gamut.

4. Since the LED is driven by a low voltage, the boost circuit of the cold cathode backlight is omitted, and the thinner circuit can be made thinner.

5. If a dynamic LED backlight is used, (the principle is to drive with 2 images, one to drive the LCD screen, and the other to drive led with the outdoor large-screen led display wall, the resolution of the driver does not need to be too high), then the 47-inch LED backlight LCD TVs can achieve dynamic power consumption, the lowest power consumption can be 10 watts, the maximum brightness is below 200 watts, the contrast can exceed 100,000:1, the brightness can reach 1000 nits, the color gamut is 132% NTSC, and then the pdp is far Far behind (except for slower response)


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